wip

New components were created to manage subpages in the document tree,
including the ability to add, reorder, and view subpages. Tests were
added to verify the functionality of these features. Additionally, API
changes were made to manage the creation and retrieval of document
children.

.github/workflows/crowdin_download.yml

@@ -0,0 +1,77 @@
+name: Download translations from Crowdin
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - 'release/**'
+
+jobs:
+  install-dependencies:
+    uses: ./.github/workflows/dependencies.yml
+    with:
+      node_version: '20.x'
+      with-front-dependencies-installation: true
+
+  synchronize-with-crowdin:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Create empty source files
+        run: |
+          touch src/backend/locale/django.pot
+          mkdir -p src/frontend/packages/i18n/locales/impress/
+          touch src/frontend/packages/i18n/locales/impress/translations-crowdin.json
+      # crowdin workflow
+      - name: crowdin action
+        uses: crowdin/github-action@v2
+        with:
+          config: crowdin/config.yml
+          upload_sources: false
+          upload_translations: false
+          download_translations: true
+          create_pull_request: false
+          push_translations: false
+          push_sources: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # A numeric ID, found at https://crowdin.com/project/<projectName>/tools/api
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
+
+          # Visit https://crowdin.com/settings#api-key to create this token
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}
+
+          CROWDIN_BASE_PATH: "../src/"
+      # frontend i18n
+      - name: Restore the frontend cache
+        uses: actions/cache@v4
+        with:
+          path: "src/frontend/**/node_modules"
+          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
+          fail-on-cache-miss: true
+      - name: generate translations files
+        working-directory: src/frontend
+        run: yarn i18n:deploy
+      # Create a new PR
+      - name: Create a new Pull Request with new translated strings
+        uses: peter-evans/create-pull-request@v7
+        with:
+          commit-message: |
+            🌐(i18n) update translated strings
+
+            Update translated files with new translations
+          title: 🌐(i18n) update translated strings
+          body: |
+            ## Purpose
+
+            update translated strings
+
+            ## Proposal
+
+            - [x]  update translated strings
+          branch: i18n/update-translations
+          labels: i18n

.github/workflows/crowdin_upload.yml

@@ -0,0 +1,76 @@
+name: Update crowdin sources
+
+on:
+  workflow_dispatch:
+  push:
+    branches: 
+      - main
+
+jobs:
+  install-dependencies:
+    uses: ./.github/workflows/dependencies.yml
+    with:
+      node_version: '20.x'
+      with-front-dependencies-installation: true
+      with-build_mails: true
+
+  synchronize-with-crowdin:
+    needs: install-dependencies
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      # Backend i18n
+      - name: Install Python
+        uses: actions/setup-python@v3
+        with:
+          python-version: "3.12.6"
+      - name: Upgrade pip and setuptools
+        run: pip install --upgrade pip setuptools
+      - name: Install development dependencies
+        run: pip install --user .
+        working-directory: src/backend
+      - name: Restore the mail templates
+        uses: actions/cache@v4
+        id: mail-templates
+        with:
+          path: "src/backend/core/templates/mail"
+          key: mail-templates-${{ hashFiles('src/mail/mjml') }}
+          fail-on-cache-miss: true
+      - name: Install gettext
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gettext pandoc
+      - name: generate pot files
+        working-directory: src/backend
+        run: |
+          DJANGO_CONFIGURATION=Build python manage.py makemessages -a --keep-pot
+      # frontend i18n
+      - name: Restore the frontend cache
+        uses: actions/cache@v4
+        with:
+          path: "src/frontend/**/node_modules"
+          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
+          fail-on-cache-miss: true
+      - name: generate source translation file
+        working-directory: src/frontend
+        run: yarn i18n:extract
+      # crowdin workflow
+      - name: crowdin action
+        uses: crowdin/github-action@v2
+        with:
+          config: crowdin/config.yml
+          upload_sources: true
+          upload_translations: false
+          download_translations: false
+          create_pull_request: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # A numeric ID, found at https://crowdin.com/project/<projectName>/tools/api
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
+
+          # Visit https://crowdin.com/settings#api-key to create this token
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}
+
+          CROWDIN_BASE_PATH: "../src/"

.github/workflows/dependencies.yml

@@ -0,0 +1,85 @@
+name: Dependency reusable workflow
+
+on:
+  workflow_call:
+    inputs:
+      node_version:
+        required: false
+        default: '20.x'
+        type: string
+      with-front-dependencies-installation:
+        type: boolean
+        default: false
+      with-build_mails:
+        type: boolean
+        default: false
+
+jobs:
+  front-dependencies-installation:
+    if: ${{ inputs.with-front-dependencies-installation == true }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Restore the frontend cache
+        uses: actions/cache@v4
+        id: front-node_modules
+        with:
+          path: "src/frontend/**/node_modules"
+          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
+      - name: Setup Node.js
+        if: steps.front-node_modules.outputs.cache-hit != 'true'
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ inputs.node_version }}
+      - name: Install dependencies
+        if: steps.front-node_modules.outputs.cache-hit != 'true'
+        run: cd src/frontend/ && yarn install --frozen-lockfile
+      - name: Cache install frontend
+        if: steps.front-node_modules.outputs.cache-hit != 'true'
+        uses: actions/cache@v4
+        with:
+          path: "src/frontend/**/node_modules"
+          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
+
+  build-mails:
+    if: ${{ inputs.with-build_mails == true }}
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: src/mail
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Restore the mail templates
+        uses: actions/cache@v4
+        id: mail-templates
+        with:
+          path: "src/backend/core/templates/mail"
+          key: mail-templates-${{ hashFiles('src/mail/mjml') }}
+
+      - name: Setup Node.js
+        if: steps.mail-templates.outputs.cache-hit != 'true'
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ inputs.node_version }}
+
+      - name: Install yarn
+        if: steps.mail-templates.outputs.cache-hit != 'true'
+        run: npm install -g yarn
+
+      - name: Install node dependencies
+        if: steps.mail-templates.outputs.cache-hit != 'true'
+        run: yarn install --frozen-lockfile
+
+      - name: Build mails
+        if: steps.mail-templates.outputs.cache-hit != 'true'
+        run: yarn build
+
+      - name: Cache mail templates
+        if: steps.mail-templates.outputs.cache-hit != 'true'
+        uses: actions/cache@v4
+        with:
+          path: "src/backend/core/templates/mail"
+          key: mail-templates-${{ hashFiles('src/mail/mjml') }}

.github/workflows/docker-hub.yml

@@ -125,8 +125,7 @@ jobs:
       - build-and-push-frontend
       - build-and-push-backend
     runs-on: ubuntu-latest
-    if: |
-      github.event_name != 'pull_request'
+    if: github.event_name != 'pull_request'
     steps:
       -
         name: Checkout repository
@@ -134,6 +133,6 @@ jobs:
       -
         name: Call argocd github webhook
         run: |
-          data='{"ref": "'$GITHUB_REF'","repository": {"html_url":"'$GITHUB_SERVER_URL'/'$GITHUB_REPOSITORY'"}}'
-          sig=$(echo -n ${data} | openssl dgst -sha1 -hmac ''${{ secrets.ARGOCD_PREPROD_WEBHOOK_SECRET}}'' | awk '{print "X-Hub-Signature: sha1="$2}')
-          curl -X POST -H 'X-GitHub-Event:push' -H "Content-Type: application/json" -H "${sig}" --data "${data}" ${{ vars.ARGOCD_PREPROD_WEBHOOK_URL }}
+          data='{"ref": "'$GITHUB_REF'","repository": {"html_url":"'$GITHUB_SERVER_URL'/${{ secrets.DEPLOYMENT_REPO_URL }}"}}'
+          sig=$(echo -n ${data} | openssl dgst -sha1 -hmac "${{ secrets.ARGOCD_PREPROD_WEBHOOK_SECRET }}" | awk '{print "X-Hub-Signature: sha1="$2}')
+          curl -X POST -H 'X-GitHub-Event:push' -H "Content-Type: application/json" -H "${sig}" --data "${data}" ${{ vars.ARGOCD_PREPROD_WEBHOOK_URL }}

.github/workflows/helmfile-linter.yaml

@@ -11,7 +11,7 @@ jobs:
   helmfile-lint:
     runs-on: ubuntu-latest
     container:
-      image: ghcr.io/helmfile/helmfile:latest
+      image: ghcr.io/helmfile/helmfile:v0.171.0
     steps:
     -
       name: Checkout repository
@@ -22,9 +22,9 @@ jobs:
       run: |
         set -e
         HELMFILE=src/helm/helmfile.yaml
-        environments=$(awk '/environments:/ {flag=1; next} flag && NF {print} !NF {flag=0}' "$HELMFILE" | grep -E '^[[:space:]]{2}[a-zA-Z]+' | sed 's/^[[:space:]]*//;s/:.*//')
+        environments=$(awk 'BEGIN {in_env=0} /^environments:/ {in_env=1; next} /^---/ {in_env=0} in_env && /^  [^ ]/ {gsub(/^  /,""); gsub(/:.*$/,""); print}' "$HELMFILE")
         for env in $environments; do
           echo "################### $env lint ###################"
           helmfile -e $env -f $HELMFILE lint || exit 1
           echo -e "\n"
-        done
+        done

.github/workflows/impress-frontend.yml

@@ -9,39 +9,16 @@ on:
       - "*"
 
 jobs:
-  install-front:
-    runs-on: ubuntu-latest
 
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: "20.x"
-
-      - name: Restore the frontend cache
-        uses: actions/cache@v4
-        id: front-node_modules
-        with:
-          path: "src/frontend/**/node_modules"
-          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
-
-      - name: Install dependencies
-        if: steps.front-node_modules.outputs.cache-hit != 'true'
-        run: cd src/frontend/ && yarn install --frozen-lockfile
-
-      - name: Cache install frontend
-        if: steps.front-node_modules.outputs.cache-hit != 'true'
-        uses: actions/cache@v4
-        with:
-          path: "src/frontend/**/node_modules"
-          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
+  install-dependencies:
+    uses: ./.github/workflows/dependencies.yml
+    with:
+      node_version: '20.x'
+      with-front-dependencies-installation: true
 
   test-front:
+    needs: install-dependencies
     runs-on: ubuntu-latest
-    needs: install-front
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -53,44 +30,54 @@ jobs:
 
       - name: Restore the frontend cache
         uses: actions/cache@v4
-        id: front-node_modules
         with:
           path: "src/frontend/**/node_modules"
           key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
+          fail-on-cache-miss: true
 
       - name: Test App
         run: cd src/frontend/ && yarn test
 
   lint-front:
     runs-on: ubuntu-latest
-    needs: install-front
+    needs: install-dependencies
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20.x"
       - name: Restore the frontend cache
         uses: actions/cache@v4
-        id: front-node_modules
         with:
           path: "src/frontend/**/node_modules"
           key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
+          fail-on-cache-miss: true
 
       - name: Check linting
         run: cd src/frontend/ && yarn lint
 
   test-e2e-chromium:
     runs-on: ubuntu-latest
+    needs: install-dependencies
     timeout-minutes: 20
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20.x"
+
       - name: Restore the frontend cache
         uses: actions/cache@v4
-        id: front-node_modules
         with:
           path: "src/frontend/**/node_modules"
           key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
+          fail-on-cache-miss: true
 
       - name: Set e2e env variables
         run: cat env.d/development/common.e2e.dist >> env.d/development/common.dist
@@ -101,28 +88,6 @@ jobs:
       - name: Start Docker services
         run: make bootstrap FLUSH_ARGS='--no-input' cache=
 
-      # Tool to wait for a service to be ready
-      - name: Install Dockerize
-        run: |
-          curl -sSL https://github.com/jwilder/dockerize/releases/download/v0.8.0/dockerize-linux-amd64-v0.8.0.tar.gz | sudo tar -C /usr/local/bin -xzv
-
-      - name: Wait for services to be ready
-        run: |
-          printf "Minio check...\n"
-          dockerize -wait tcp://localhost:9000 -timeout 20s
-          printf "Keyclock check...\n"
-          dockerize -wait tcp://localhost:8080 -timeout 20s
-          printf "Server collaboration check...\n"
-          dockerize -wait tcp://localhost:4444 -timeout 20s
-          printf "Ngnix check...\n"
-          dockerize -wait tcp://localhost:8083 -timeout 20s
-          printf "DRF check...\n"
-          dockerize -wait tcp://localhost:8071 -timeout 20s
-          printf "Postgres Keyclock check...\n"
-          dockerize -wait tcp://localhost:5433 -timeout 20s
-          printf "Postgres back check...\n"
-          dockerize -wait tcp://localhost:15432 -timeout 20s
-
       - name: Run e2e tests
         run: cd src/frontend/ && yarn e2e:test --project='chromium'
 
@@ -141,12 +106,17 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20.x"
+
       - name: Restore the frontend cache
         uses: actions/cache@v4
-        id: front-node_modules
         with:
           path: "src/frontend/**/node_modules"
           key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
+          fail-on-cache-miss: true
 
       - name: Set e2e env variables
         run: cat env.d/development/common.e2e.dist >> env.d/development/common.dist

.github/workflows/impress.yml

@@ -9,6 +9,11 @@ on:
       - "*"
 
 jobs:
+  install-dependencies:
+    uses: ./.github/workflows/dependencies.yml
+    with:
+      with-build_mails: true
+
   lint-git:
     runs-on: ubuntu-latest
     if: github.event_name == 'pull_request' # Makes sense only for pull requests
@@ -56,46 +61,6 @@ jobs:
             exit 1
           fi
 
-  build-mails:
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        working-directory: src/mail
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Install Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: "18"
-
-      - name: Restore the mail templates
-        uses: actions/cache@v4
-        id: mail-templates
-        with:
-          path: "src/backend/core/templates/mail"
-          key: mail-templates-${{ hashFiles('src/mail/mjml') }}
-
-      - name: Install yarn
-        if: steps.mail-templates.outputs.cache-hit != 'true'
-        run: npm install -g yarn
-
-      - name: Install node dependencies
-        if: steps.mail-templates.outputs.cache-hit != 'true'
-        run: yarn install --frozen-lockfile
-
-      - name: Build mails
-        if: steps.mail-templates.outputs.cache-hit != 'true'
-        run: yarn build
-
-      - name: Cache mail templates
-        if: steps.mail-templates.outputs.cache-hit != 'true'
-        uses: actions/cache@v4
-        with:
-          path: "src/backend/core/templates/mail"
-          key: mail-templates-${{ hashFiles('src/mail/mjml') }}
-
   lint-back:
     runs-on: ubuntu-latest
     defaults:
@@ -121,7 +86,7 @@ jobs:
 
   test-back:
     runs-on: ubuntu-latest
-    needs: build-mails
+    needs: install-dependencies
 
     defaults:
       run:
@@ -169,6 +134,7 @@ jobs:
         with:
           path: "src/backend/core/templates/mail"
           key: mail-templates-${{ hashFiles('src/mail/mjml') }}
+          fail-on-cache-miss: true
 
       - name: Start MinIO
         run: |
@@ -206,10 +172,11 @@ jobs:
       - name: Install development dependencies
         run: pip install --user .[dev]
 
-      - name: Install gettext (required to compile messages)
+      - name: Install gettext (required to compile messages) and MIME support
         run: |
           sudo apt-get update
-          sudo apt-get install -y gettext pandoc
+          sudo apt-get install -y gettext pandoc shared-mime-info
+          sudo wget https://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types -O /etc/mime.types
 
       - name: Generate a MO file from strings extracted from the project
         run: python manage.py compilemessages

.gitignore

@@ -30,6 +30,7 @@ MANIFEST
 .next/
 
 # Translations	# Translations
+*.mo
 *.pot
 
 # Environments

CHANGELOG.md

@@ -6,17 +6,174 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0),
 and this project adheres to
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-
 ## [Unreleased]
 
 ## Added
 
+- 📄(legal) Require contributors to sign a DCO #779
+
+## Changed
+
+- ♻️(frontend) Integrate UI kit #783
+
+## [2.6.0] - 2025-03-21
+
+## Added
+
+- 📝(doc) add publiccode.yml #770
+
+## Changed
+
+- 🚸(frontend) ctrl+k modal not when editor is focused #712
+
+## Fixed
+
+- 🐛(back) allow only images to be used with the cors-proxy #781
+- 🐛(backend) stop returning inactive users on the list endpoint #636
+- 🔒️(backend) require at least 5 characters to search for users #636
+- 🔒️(back) throttle user list endpoint #636
+- 🔒️(back) remove pagination and limit to 5 for user list endpoint #636
+
+
+## [2.5.0] - 2025-03-18
+
+## Added
+
+- 📝(doc) Added GNU Make link to README #750
+- ✨(frontend) add pinning on doc detail #711
+- 🚩(frontend) feature flag analytic on copy as html #649
+- ✨(frontend) Custom block divider with export #698
+- 🌐(i18n) activate dutch language #742
+- ✨(frontend) add Beautify action to AI transform #478
+- ✨(frontend) add Emojify action to AI transform #478
+
+## Changed
+
+- 🧑‍💻(frontend) change literal section open source #702
+- ♻️(frontend) replace cors proxy for export #695
+- 🚨(gitlint) Allow uppercase in commit messages #756
+- ♻️(frontend) Improve AI translations #478
+
+## Fixed
+
+- 🐛(frontend) SVG export #706
+- 🐛(frontend) remove scroll listener table content  #688
+- 🔒️(back) restrict access to favorite_list endpoint #690
+- 🐛(backend) refactor to fix filtering on children 
+    and descendants views #695
+- 🐛(action) fix notify-argocd workflow #713
+- 🚨(helm) fix helmfile lint #736
+- 🚚(frontend) redirect to 401 page when 401 error #759
+
+
+## [2.4.0] - 2025-03-06
+
+## Added
+
+- ✨(frontend) synchronize language-choice #401
+
+## Changed
+
+- Use sentry tags instead of extra scope
+
+## Fixed
+
+- 🐛(frontend) fix collaboration error #684
+
+
+## [2.3.0] - 2025-03-03
+
+## Added
+
+- ✨(backend) limit link reach/role select options depending on ancestors #645
+- ✨(backend) add new "descendants" action to document API endpoint #645
+- ✨(backend) new "tree" action on document detail endpoint #645
+- ✨(backend) allow forcing page size within limits #645
+- 💄(frontend) add error pages #643
+- 🔒️ Manage unsafe attachments #663
+- ✨(frontend) Custom block quote with export #646
+- ✨(frontend) add open source section homepage #666
+- ✨(frontend) synchronize language-choice #401
+
+## Changed
+
+- 🛂(frontend) Restore version visibility #629
+- 📝(doc) minor README.md formatting and wording enhancements
+- ♻️Stop setting a default title on doc creation #634
+- ♻️(frontend) misc ui improvements #644
+
+## Fixed
+
+- 🐛(backend) allow any type of extensions for media download #671
+- ♻️(frontend) improve table pdf rendering
+- 🐛(email) invitation emails in receivers language
+
+
+## [2.2.0] - 2025-02-10
+
+## Added
+
+- 📝(doc) Add security.md and codeofconduct.md #604
+- ✨(frontend) add home page #608
+- ✨(frontend) cursor display on activity #609
+- ✨(frontend) Add export page break #623
+
+## Changed
+
+- 🔧(backend) make AI feature reach configurable #628
+
+## Fixed
+
+- 🌐(CI) Fix email partially translated #616
+- 🐛(frontend) fix cursor breakline #609
+- 🐛(frontend) fix style pdf export #609
+
+## [2.1.0] - 2025-01-29
+
+## Added
+
+- ✨(backend) add soft delete and restore API endpoints to documents #516
+- ✨(backend) allow organizing documents in a tree structure #516
+- ✨(backend) add "excerpt" field to document list serializer #516
+- ✨(backend) add github actions to manage Crowdin workflow #559 & #563
+- 📈Integrate Posthog #540
+- 🏷️(backend) add content-type to uploaded files #552
+- ✨(frontend) export pdf docx front side #537
+
+## Changed
+
+- 💄(frontend) add abilities on doc row #581
+- 💄(frontend) improve DocsGridItem responsive padding #582
+- 🔧(backend) Bump maximum page size to 200 #516
+- 📝(doc) Improve Read me #558
+
+## Fixed
+
+- 🐛Fix invitations #575
+
+## Removed
+
+- 🔥(backend) remove "content" field from list serializer # 516
+
+## [2.0.1] - 2025-01-17
+
+## Fixed
+
+-🐛(frontend) share modal is shown when you don't have the abilities #557
+-🐛(frontend) title copy break app #564
+
+## [2.0.0] - 2025-01-13
+
+## Added
+
 - 🔧(backend) add option to configure list of essential OIDC claims #525 & #531
 - 🔧(helm) add option to disable default tls setting by @dominikkaminski #519
 - 💄(frontend) Add left panel #420
 - 💄(frontend) add filtering to left panel #475
 - ✨(frontend) new share modal ui #489
 - ✨(frontend) add favorite feature #515
+- 📝(documentation) Documentation about self-hosted installation #530
+- ✨(helm) helm versioning #530
 
 ## Changed
 
@@ -25,9 +182,10 @@ and this project adheres to
 - 💄(frontend) updating the header and leftpanel for responsive #421
 - 💄(frontend) update DocsGrid component #431
 - 💄(frontend) update DocsGridOptions component #432
-- 💄(frontend) update DocHeader ui #446
+- 💄(frontend) update DocHeader ui #448
 - 💄(frontend) update doc versioning ui #463
 - 💄(frontend) update doc summary ui #473
+- 📝(doc) update readme.md to match V2 changes #558 & #572
 
 ## Fixed
 
@@ -51,12 +209,11 @@ and this project adheres to
 
 - ⚡️(e2e) reduce flakiness on e2e tests #511
 
-
 ## Fixed
+
 - 🐛(frontend) update doc editor height #481
 - 💄(frontend) add doc search #485
 
-
 ## [1.9.0] - 2024-12-11
 
 ## Added
@@ -78,21 +235,18 @@ and this project adheres to
 - 🐛(frontend) Fix hidden menu on Firefox #468
 - 🐛(backend) fix sanitize problem IA #490
 
-
 ## [1.8.2] - 2024-11-28
 
 ## Changed
 
 - ♻️(SW) change strategy html caching #460
 
-
 ## [1.8.1] - 2024-11-27
 
 ## Fixed
 
 - 🐛(frontend) link not clickable and flickering firefox #457
 
-
 ## [1.8.0] - 2024-11-25
 
 ## Added
@@ -121,7 +275,6 @@ and this project adheres to
 - 🐛(frontend) users have view access when revoked #387
 - 🐛(frontend) fix placeholder editable when double clicks #454
 
-
 ## [1.7.0] - 2024-10-24
 
 ## Added
@@ -149,7 +302,6 @@ and this project adheres to
 
 - 🔥(helm) remove infra related codes #366
 
-
 ## [1.6.0] - 2024-10-17
 
 ## Added
@@ -172,7 +324,6 @@ and this project adheres to
 - 🐛(backend) fix nginx docker container #340
 - 🐛(frontend) fix copy paste firefox #353
 
-
 ## [1.5.1] - 2024-10-10
 
 ## Fixed
@@ -207,7 +358,6 @@ and this project adheres to
 - 🔧(backend) fix configuration to avoid different ssl warning #297
 - 🐛(frontend) fix editor break line not working #302
 
-
 ## [1.4.0] - 2024-09-17
 
 ## Added
@@ -228,7 +378,6 @@ and this project adheres to
 - 🐛(backend) Fix forcing ID when creating a document via API endpoint #234
 - 🐛 Rebuild frontend dev container from makefile #248
 
-
 ## [1.3.0] - 2024-09-05
 
 ## Added
@@ -253,7 +402,6 @@ and this project adheres to
 
 - 🔥(frontend) remove saving modal #213
 
-
 ## [1.2.1] - 2024-08-23
 
 ## Changed
@@ -261,7 +409,6 @@ and this project adheres to
 - ♻️ Change ordering docs datagrid #195
 - 🔥(helm) use scaleway email #194
 
-
 ## [1.2.0] - 2024-08-22
 
 ## Added
@@ -285,14 +432,14 @@ and this project adheres to
 - ⚡️(CI) only e2e chrome mandatory #177
 
 ## Removed
-- 🔥(helm) remove htaccess #181
 
+- 🔥(helm) remove htaccess #181
 
 ## [1.1.0] - 2024-07-15
 
 ## Added
 
-- 🤡(demo) generate dummy documents on dev users #120 
+- 🤡(demo) generate dummy documents on dev users #120
 - ✨(frontend) create side modal component #134
 - ✨(frontend) Doc grid actions (update / delete) #136
 - ✨(frontend) Doc editor header information #137
@@ -303,12 +450,11 @@ and this project adheres to
 - ♻️(frontend) create a doc from a modal #132
 - ♻️(frontend) manage members from the share modal #140
 
-
 ## [1.0.0] - 2024-07-02
 
 ## Added
 
-- 🛂(frontend) Manage the document's right (#75) 
+- 🛂(frontend) Manage the document's right (#75)
 - ✨(frontend) Update document (#68)
 - ✨(frontend) Remove document (#68)
 - 🐳(docker) dockerize dev frontend (#63)
@@ -342,7 +488,6 @@ and this project adheres to
 - 💚(CI) Remove trigger workflow on push tags on CI (#68)
 - 🔥(frontend) Remove coming soon page (#121)
 
-
 ## [0.1.0] - 2024-05-24
 
 ## Added
@@ -350,8 +495,15 @@ and this project adheres to
 - ✨(frontend) Coming Soon page (#67)
 - 🚀 Impress, project to manage your documents easily and collaboratively.
 
-
-[unreleased]: https://github.com/numerique-gouv/impress/compare/v1.10.0...main
+[unreleased]: https://github.com/numerique-gouv/impress/compare/v2.6.0...main
+[v2.5.0]: https://github.com/numerique-gouv/impress/releases/v2.6.0
+[v2.5.0]: https://github.com/numerique-gouv/impress/releases/v2.5.0
+[v2.4.0]: https://github.com/numerique-gouv/impress/releases/v2.4.0
+[v2.3.0]: https://github.com/numerique-gouv/impress/releases/v2.3.0
+[v2.2.0]: https://github.com/numerique-gouv/impress/releases/v2.2.0
+[v2.1.0]: https://github.com/numerique-gouv/impress/releases/v2.1.0
+[v2.0.1]: https://github.com/numerique-gouv/impress/releases/v2.0.1
+[v2.0.0]: https://github.com/numerique-gouv/impress/releases/v2.0.0
 [v1.10.0]: https://github.com/numerique-gouv/impress/releases/v1.10.0
 [v1.9.0]: https://github.com/numerique-gouv/impress/releases/v1.9.0
 [v1.8.2]: https://github.com/numerique-gouv/impress/releases/v1.8.2

CODE_OF_CONDUCT.md

@@ -0,0 +1,75 @@
+# Contributor Covenant Code of Conduct
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our community a harassment-free experience for everyone, regardless of age, body size, visible or invisible disability, ethnicity, sex characteristics, gender identity and expression, level of experience, education, socio-economic status, nationality, personal appearance, race, caste, color, religion, or sexual identity and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming, diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our community include:
+
+- Demonstrating empathy and kindness toward other people
+- Being respectful of differing opinions, viewpoints, and experiences
+- Giving and gracefully accepting constructive feedback
+- Accepting responsibility and apologizing to those affected by our mistakes, and learning from the experience
+- Focusing on what is best not just for us as individuals, but for the overall community
+
+Examples of unacceptable behavior include:
+
+- The use of sexualized language or imagery, and sexual attention or advances of any kind
+- Trolling, insulting or derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or email address, without their explicit permission
+- Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Enforcement Responsibilities
+
+- Community leaders are responsible for clarifying and enforcing our standards of acceptable behavior and will take appropriate and fair corrective action in response to any behavior that they deem inappropriate, threatening, offensive, or harmful.
+- Community leaders have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, and will communicate reasons for moderation decisions when appropriate.
+
+## Scope
+
+- This Code of Conduct applies within all community spaces, and also applies when an individual is officially representing the community in public spaces. Examples of representing our community include using an official e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event.
+
+## Enforcement
+
+- Instances of abusive, harassing, or otherwise unacceptable behavior may be reported to the community leaders responsible for enforcement at docs@numerique.gouv.fr.
+
+- All complaints will be reviewed and investigated promptly and fairly.
+
+- All community leaders are obligated to respect the privacy and security of the reporter of any incident.
+
+## Enforcement Guidelines
+
+- Community leaders will follow these Community Impact Guidelines in determining the consequences for any action they deem in violation of this 
+
+## Code of Conduct:
+
+1. Correction
+
+Community Impact: Use of inappropriate language or other behavior deemed unprofessional or unwelcome in the community.
+
+Consequence: A private, written warning from community leaders, providing clarity around the nature of the violation and an explanation of why the behavior was inappropriate. A public apology may be requested.
+2. Warning
+
+Community Impact: A violation through a single incident or series of actions.
+
+Consequence: A warning with consequences for continued behavior. No interaction with the people involved, including unsolicited interaction with those enforcing the Code of Conduct, for a specified period of time. This includes avoiding interactions in community spaces as well as external channels like social media. Violating these terms may lead to a temporary or permanent ban.
+3. Temporary Ban
+
+Community Impact: A serious violation of community standards, including sustained inappropriate behavior.
+
+Consequence: A temporary ban from any sort of interaction or public communication with the community for a specified period of time. No public or private interaction with the people involved, including unsolicited interaction with those enforcing the Code of Conduct, is allowed during this period. Violating these terms may lead to a permanent ban.
+4. Permanent Ban
+
+Community Impact: Demonstrating a pattern of violation of community standards, including sustained inappropriate behavior, harassment of an individual, or aggression toward or disparagement of classes of individuals.
+
+Consequence: A permanent ban from any sort of public interaction within the community.
+Attribution
+
+This Code of Conduct is adapted from the Contributor Covenant, version 2.1, available at https://www.contributor-covenant.org/version/2/1/code_of_conduct.html.
+
+Community Impact Guidelines were inspired by Mozilla's code of conduct enforcement ladder.
+
+For answers to common questions about this code of conduct, see the FAQ at https://www.contributor-covenant.org/faq. Translations are available at https://www.contributor-covenant.org/translations.

CONTRIBUTING.md

@@ -2,7 +2,16 @@
 
 Thank you for taking the time to contribute! Please follow these guidelines to ensure a smooth and productive workflow. 🚀🚀🚀
 
-To get started with the project, please refer to the [README.md](https://github.com/numerique-gouv/impress/blob/main/README.md) for detailed instructions.
+To get started with the project, please refer to the [README.md](https://github.com/suitenumerique/docs/blob/main/README.md) for detailed instructions.
+
+Contributors are required to sign off their commits with `git commit --sign-off`: this confirms that they have read and accepted the [Developer's Certificate of Origin 1.1](https://developercertificate.org/).
+
+Please also check out our [dev handbook](https://suitenumerique.gitbook.io/handbook) to learn our best practices.
+
+## Help us with translations
+
+You can help us with translations on [Crowdin](https://crowdin.com/project/lasuite-docs).
+Your language is not there? Request it on our Crowdin page 😊.
 
 ## Creating an Issue
 
@@ -28,7 +37,7 @@ All commit messages must adhere to the following format:
 
 *   <**gitmoji**>: Use a gitmoji to represent the purpose of the commit. For example, ✨ for adding a new feature or 🔥 for removing something, see the list here: <https://gitmoji.dev/>.
 *   **(type)**: Describe the type of change. Common types include `backend`, `frontend`, `CI`, `docker` etc...
-*   **title**: A short, descriptive title for the change, starting with a lowercase character.
+*   **title**: A short, descriptive title for the change.
 *   **description**: Include additional details about what was changed and why.
 
 ### Example Commit Message

Dockerfile

@@ -51,7 +51,7 @@ COPY ./src/backend /app/
 WORKDIR /app
 
 # collectstatic
-RUN DJANGO_CONFIGURATION=Build DJANGO_JWT_PRIVATE_SIGNING_KEY=Dummy \
+RUN DJANGO_CONFIGURATION=Build \
     python manage.py collectstatic --noinput
 
 # Replace duplicated file by a symlink to decrease the overall size of the
@@ -72,10 +72,11 @@ RUN apk add \
   gettext \
   gdk-pixbuf \
   libffi-dev \
-  pandoc \
   pango \
   shared-mime-info
 
+RUN wget https://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types -O /etc/mime.types
+
 # Copy entrypoint
 COPY ./docker/files/usr/local/bin/entrypoint /usr/local/bin/entrypoint
 
@@ -92,6 +93,11 @@ COPY ./src/backend /app/
 
 WORKDIR /app
 
+# Generate compiled translation messages
+RUN DJANGO_CONFIGURATION=Build \
+    python manage.py compilemessages
+
+
 # We wrap commands run in this container by the following entrypoint that
 # creates a user on-the-fly with the container user ID (see USER) and root group
 # ID.

Makefile

@@ -44,7 +44,6 @@ COMPOSE_EXEC_APP    = $(COMPOSE_EXEC) app-dev
 COMPOSE_RUN         = $(COMPOSE) run --rm
 COMPOSE_RUN_APP     = $(COMPOSE_RUN) app-dev
 COMPOSE_RUN_CROWDIN = $(COMPOSE_RUN) crowdin crowdin
-WAIT_DB             = @$(COMPOSE_RUN) dockerize -wait tcp://$(DB_HOST):$(DB_PORT) -timeout 60s
 
 # -- Backend
 MANAGE              = $(COMPOSE_RUN_APP) python manage.py
@@ -81,12 +80,12 @@ bootstrap: \
 	data/static \
 	create-env-files \
 	build \
-	run-with-frontend \
 	migrate \
 	demo \
 	back-i18n-compile \
 	mails-install \
-	mails-build
+	mails-build \
+	run
 .PHONY: bootstrap
 
 # -- Docker/compose
@@ -94,7 +93,6 @@ build: cache ?= --no-cache
 build: ## build the project containers
 	@$(MAKE) build-backend cache=$(cache)
 	@$(MAKE) build-yjs-provider cache=$(cache)
-	@$(MAKE) build-frontend cache=$(cache)
 .PHONY: build
 
 build-backend: cache ?=
@@ -109,7 +107,7 @@ build-yjs-provider: ## build the y-provider container
 
 build-frontend: cache ?=
 build-frontend: ## build the frontend container
-	@$(COMPOSE) build frontend-dev $(cache)
+	@$(COMPOSE) build frontend $(cache)
 .PHONY: build-frontend
 
 down: ## stop and remove containers, networks, images, and volumes
@@ -120,18 +118,16 @@ logs: ## display app-dev logs (follow mode)
 	@$(COMPOSE) logs -f app-dev
 .PHONY: logs
 
-run: ## start the wsgi (production) and development server
+run-backend: ## Start only the backend application and all needed services
 	@$(COMPOSE) up --force-recreate -d celery-dev
 	@$(COMPOSE) up --force-recreate -d y-provider
 	@$(COMPOSE) up --force-recreate -d nginx
-	@echo "Wait for postgresql to be up..."
-	@$(WAIT_DB)
-.PHONY: run
+.PHONY: run-backend
 
-run-with-frontend: ## Start all the containers needed (backend to frontend)
-	@$(MAKE) run
-	@$(COMPOSE) up --force-recreate -d frontend-dev
-.PHONY: run-with-frontend
+run: ## start the wsgi (production) and development server
+run: 
+	@$(MAKE) run-backend
+.PHONY: run
 
 status: ## an alias for "docker compose ps"
 	@$(COMPOSE) ps
@@ -188,14 +184,12 @@ test-back-parallel: ## run all back-end tests in parallel
 makemigrations:  ## run django makemigrations for the impress project.
 	@echo "$(BOLD)Running makemigrations$(RESET)"
 	@$(COMPOSE) up -d postgresql
-	@$(WAIT_DB)
 	@$(MANAGE) makemigrations
 .PHONY: makemigrations
 
 migrate:  ## run django migrations for the impress project.
 	@echo "$(BOLD)Running migrations$(RESET)"
 	@$(COMPOSE) up -d postgresql
-	@$(WAIT_DB)
 	@$(MANAGE) migrate
 .PHONY: migrate
 
@@ -310,16 +304,16 @@ help:
 .PHONY: help
 
 # Front
-frontend-install: ## install the frontend locally
+frontend-development-install: ## install the frontend locally
 	cd $(PATH_FRONT_IMPRESS) && yarn
-.PHONY: frontend-install
+.PHONY: frontend-development-install
 
 frontend-lint: ## run the frontend linter
 	cd $(PATH_FRONT) && yarn lint
 .PHONY: frontend-lint
 
 run-frontend-development: ## Run the frontend in development mode
-	@$(COMPOSE) stop frontend-dev
+	@$(COMPOSE) stop frontend
 	cd $(PATH_FRONT_IMPRESS) && yarn dev
 .PHONY: run-frontend-development
 

README.md

@@ -1,113 +1,200 @@
-# Impress
+<p align="center">
+  <a href="https://github.com/suitenumerique/docs">
+    <img alt="Docs" src="/docs/assets/docs-logo.png" width="300" />
+  </a>
+</p>
 
-Impress is a web application for real-time collaborative text editing with user and role based access rights.
-Features include : 
-- User authentication through OIDC
-- BlocNote.js text editing experience (markdown support, dynamic conversion, block structure, slash commands for block creation) 
-- Document export to pdf and docx from predefined templates
-- Granular document permissions
-- Public link sharing
-- Offline mode
+<p align="center">
+Welcome to Docs! The open source document editor where your notes can become knowledge through live collaboration
+</p>
 
-Impress is built on top of [Django Rest Framework](https://www.django-rest-framework.org/), [Next.js](https://nextjs.org/) and [BlocNote.js](https://www.blocknotejs.org/)
+<p align="center">
+  <a href="https://matrix.to/#/#docs-official:matrix.org">
+    Chat on Matrix
+  </a> - <a href="/docs/">
+    Documentation
+  </a> - <a href="#getting-started-">
+    Getting started
+  </a> - <a href="mailto:docs@numerique.gouv.fr">
+    Reach out
+  </a>
+</p>
 
-## Getting started
+<img src="/docs/assets/docs_live_collaboration_light.gif" width="100%" align="center"/>
 
-### Prerequisite
+## Why use Docs ❓
 
-Make sure you have a recent version of Docker and [Docker
-Compose](https://docs.docker.com/compose/install) installed on your laptop:
+Docs is a collaborative text editor designed to address common challenges in knowledge building and sharing.
 
-```bash
-$ docker -v
-  Docker version 20.10.2, build 2291f61
+### Write
+*   😌 Simple collaborative editing without the formatting complexity of markdown
+*   🔌 Offline? No problem, keep writing, your edits will get synced when back online
+*   💅 Create clean documents with limited but beautiful formatting options and focus on content
+*   🧱 Built for productivity (markdown support, many block types, slash commands, keyboard shortcuts).
+*   ✨ Save time thanks to our AI actions (generate, sum up, correct, translate)
 
-$ docker compose -v
-  docker compose version 1.27.4, build 40524192
+### Collaborate
+*   🤝 Collaborate with your team in real time
+*   🔒 Granular access control to ensure your information is secure and only shared with the right people
+*   📑 Professional document exports in multiple formats (.odt, .doc, .pdf) with customizable templates
+*   📚 Built-in wiki functionality to turn your team's collaborative work into organized knowledge `ETA 02/2025`
+
+### Self-host
+*   🚀 Easy to install, scalable and secure alternative to Notion, Outline or Confluence
+
+## Getting started 🔧
+
+### Test it
+
+Test Docs on your browser by logging in on this [environment](https://impress-preprod.beta.numerique.gouv.fr/)
+
+```
+email: test.docs@yopmail.com
+password: I'd<3ToTestDocs
 ```
 
-> ⚠️ You may need to run the following commands with `sudo` but this can be
-> avoided by assigning your user to the `docker` group.
+### Run it locally
 
-### Project bootstrap
+> ⚠️ Running Docs locally using the methods described below is for testing purposes only.  It is based on building Docs using Minio as the S3 storage solution but you can choose any S3 compatible object storage of your choice.
 
-The easiest way to start working on the project is to use GNU Make:
+**Prerequisite**
 
-```bash
+Make sure you have a recent version of Docker and [Docker Compose](https://docs.docker.com/compose/install) installed on your laptop:
+
+```shellscript
+$ docker -v
+
+Docker version 20.10.2, build 2291f61
+
+$ docker compose version
+
+Docker Compose version v2.32.4
+```
+
+> ⚠️ You may need to run the following commands with sudo but this can be avoided by adding your user to the `docker` group.
+
+**Project bootstrap**
+
+The easiest way to start working on the project is to use [GNU Make](https://www.gnu.org/software/make/):
+
+```shellscript
 $ make bootstrap FLUSH_ARGS='--no-input'
 ```
 
-This command builds the `app` container, installs dependencies, performs
-database migrations and compile translations. It's a good idea to use this
-command each time you are pulling code from the project repository to avoid
-dependency-releated or migration-releated issues.
+This command builds the `app` container, installs dependencies, performs database migrations and compile translations. It's a good idea to use this command each time you are pulling code from the project repository to avoid dependency-related or migration-related issues.
 
 Your Docker services should now be up and running 🎉
 
-You can access to the project by going to http://localhost:3000.
+You can access to the project by going to <http://localhost:3000>.
+
 You will be prompted to log in, the default credentials are:
-```bash
+
+```
 username: impress
 password: impress
 ```
 
 📝 Note that if you need to run them afterwards, you can use the eponym Make rule:
 
-```bash
-$ make run-with-frontend
+```shellscript
+$ make run
 ```
 
----
+⚠️ For the frontend developer, it is often better to run the frontend in development mode locally.
 
-⚠️ For the frontend developper, it is often better to run the frontend in development mode locally. 
 To do so, install the frontend dependencies with the following command:
 
-```bash
-$ make frontend-install
+```shellscript
+$ make frontend-development-install
 ```
+
 And run the frontend locally in development mode with the following command:
 
-```bash
+```shellscript
 $ make run-frontend-development
 ```
 
 To start all the services, except the frontend container, you can use the following command:
 
-```bash
-$ make run
+```shellscript
+$ make run-backend
 ```
 
----
-
-### Adding content
-
+**Adding content**
 You can create a basic demo site by running:
 
-    $ make demo
+```shellscript
+$ make demo
+```
 
 Finally, you can check all available Make rules using:
 
-```bash
+```shellscript
 $ make help
 ```
 
-### Django admin
+**Django admin**
 
 You can access the Django admin site at
-[http://localhost:8071/admin](http://localhost:8071/admin).
+
+<http://localhost:8071/admin>.
 
 You first need to create a superuser account:
 
-```bash
+```shellscript
 $ make superuser
 ```
 
-## Contributing
+## Feedback 🙋‍♂️🙋‍♀️
 
-This project is intended to be community-driven, so please, do not hesitate to
-get in touch if you have any question related to our implementation or design
-decisions.
+We'd love to hear your thoughts and hear about your experiments, so come and say hi on [Matrix](https://matrix.to/#/#docs-official:matrix.org).
 
-## License
+## Roadmap
 
-This work is released under the MIT License (see [LICENSE](./LICENSE)).
+Want to know where the project is headed? [🗺️ Checkout our roadmap](https://github.com/orgs/numerique-gouv/projects/13/views/11)
+
+## Licence 📝
+
+This work is released under the MIT License (see [LICENSE](https://github.com/suitenumerique/docs/blob/main/LICENSE)).
+
+While Docs is a public driven initiative our licence choice is an invitation for private sector actors to use, sell and contribute to the project. 
+
+## Contributing 🙌
+
+This project is intended to be community-driven, so please, do not hesitate to [get in touch](https://matrix.to/#/#docs-official:matrix.org) if you have any question related to our implementation or design decisions.
+
+You can help us with translations on [Crowdin](https://crowdin.com/project/lasuite-docs).
+
+If you intend to make pull requests see [CONTRIBUTING](https://github.com/suitenumerique/docs/blob/main/CONTRIBUTING.md) for guidelines.
+
+Directory structure:
+
+```markdown
+docs
+├── bin - executable scripts or binaries that are used for various tasks, such as setup scripts, utility scripts, or custom commands.
+├── crowdin - for crowdin translations, a tool or service that helps manage translations for the project.
+├── docker - Dockerfiles and related configuration files used to build Docker images for the project. These images can be used for development, testing, or production environments.
+├── docs - documentation for the project, including user guides, API documentation, and other helpful resources.
+├── env.d/development - environment-specific configuration files for the development environment. These files might include environment variables, configuration settings, or other setup files needed for development.
+├── gitlint - configuration files for `gitlint`, a tool that enforces commit message guidelines to ensure consistency and quality in commit messages.
+├── playground - experimental or temporary code, where developers can test new features or ideas without affecting the main codebase.
+└── src - main source code directory, containing the core application code, libraries, and modules of the project.
+```
+
+## Credits ❤️
+
+### Stack
+
+Docs is built on top of [Django Rest Framework](https://www.django-rest-framework.org/), [Next.js](https://nextjs.org/), [BlockNote.js](https://www.blocknotejs.org/), [HocusPocus](https://tiptap.dev/docs/hocuspocus/introduction) and [Yjs](https://yjs.dev/).
+
+### Gov ❤️ open source
+
+Docs is the result of a joint effort led by the French 🇫🇷🥖 ([DINUM](https://www.numerique.gouv.fr/dinum/)) and German 🇩🇪🥨 governments ([ZenDiS](https://zendis.de/)). 
+
+We are proud sponsors of [BlockNotejs](https://www.blocknotejs.org/) and [Yjs](https://yjs.dev/).
+
+We are always looking for new public partners (we are currently onboarding the Netherlands 🇳🇱🧀), feel free to [reach out](mailto:docs@numerique.gouv.fr) if you are interested in using or contributing to Docs.
+
+<p align="center">
+  <img src="/docs/assets/europe_opensource.png" width="50%"/>
+</p>

SECURITY.md

@@ -0,0 +1,23 @@
+# Security Policy
+
+## Reporting a Vulnerability
+
+Security is very important to us.
+
+If you have any issue regarding security, please disclose the information responsibly submiting [this form](https://vdp.numerique.gouv.fr/p/Send-a-report?lang=en) and not by creating an issue on the repository. You can also email us at docs@numerique.gouv.fr
+
+We appreciate your effort to make Docs more secure.
+
+## Vulnerability disclosure policy
+
+Working with security issues in an open source project can be challenging, as we are required to disclose potential problems that could be exploited by attackers. With this in mind, our security fix policy is as follows:
+
+1. The Maintainers team will handle the fix as usual (Pull Request,
+release).
+2. In the release notes, we will include the identification numbers from the
+GitHub Advisory Database (GHSA) and, if applicable, the Common Vulnerabilities
+and Exposures (CVE) identifier for the vulnerability.
+3. Once this grace period has passed, we will publish the vulnerability.
+
+By adhering to this security policy, we aim to address security concerns
+effectively and responsibly in our open source software project.

UPGRADE.md

@@ -15,3 +15,8 @@ the following command inside your docker container:
 (Note : in your development environment, you can `make migrate`.)
 
 ## [Unreleased]
+
+- AI features are now limited to users who are authenticated. Before this release, even anonymous
+  users who gained editor access on a document with link reach used to get AI feature.
+  IF you want anonymous users to keep access on AI features, you must now define the
+  `AI_ALLOW_REACH_FROM` setting to "public".

bin/_config.sh

@@ -7,7 +7,6 @@ UNSET_USER=0
 
 TERRAFORM_DIRECTORY="./env.d/terraform"
 COMPOSE_FILE="${REPO_DIR}/docker-compose.yml"
-COMPOSE_PROJECT="docs"
 
 
 # _set_user: set (or unset) default user id used to run docker commands
@@ -40,9 +39,8 @@ function _set_user() {
 # ARGS   : docker compose command arguments
 function _docker_compose() {
 
-    echo "🐳(compose) project: '${COMPOSE_PROJECT}' file: '${COMPOSE_FILE}'"
+    echo "🐳(compose) file: '${COMPOSE_FILE}'"
     docker compose \
-        -p "${COMPOSE_PROJECT}" \
         -f "${COMPOSE_FILE}" \
         --project-directory "${REPO_DIR}" \
         "$@"

crowdin/config.yml

@@ -1,7 +1,7 @@
 #
 # Your crowdin's credentials
 #
-api_token_env: CROWDIN_API_TOKEN
+api_token_env: CROWDIN_PERSONAL_TOKEN
 project_id_env: CROWDIN_PROJECT_ID
 base_path_env: CROWDIN_BASE_PATH
 
@@ -15,11 +15,11 @@ preserve_hierarchy: true
 # Files configuration
 #
 files: [
- {
-  source : "/backend/locale/django.pot",
-  dest: "/backend-impress.pot",
-  translation : "/backend/locale/%locale_with_underscore%/LC_MESSAGES/django.po"
- },
+  {
+    source : "/backend/locale/django.pot",
+    dest: "/backend-impress.pot",
+    translation : "/backend/locale/%locale_with_underscore%/LC_MESSAGES/django.po"
+  },
   {
     source: "/frontend/packages/i18n/locales/impress/translations-crowdin.json",
     dest: "/frontend-impress.json",

docker-compose.yml

@@ -1,6 +1,13 @@
+name: docs
+
 services:
   postgresql:
     image: postgres:16
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -d $${POSTGRES_DB} -U $${POSTGRES_USER}"]
+      interval: 1s
+      timeout: 2s
+      retries: 300
     env_file:
       - env.d/development/postgresql
     ports:
@@ -23,6 +30,11 @@ services:
     ports:
       - '9000:9000'
       - '9001:9001'
+    healthcheck:
+      test: ["CMD", "mc", "ready", "local"]
+      interval: 1s
+      timeout: 20s
+      retries: 300
     entrypoint: ""
     command: minio server --console-address :9001 /data
     volumes:
@@ -31,7 +43,9 @@ services:
   createbuckets:
     image: minio/mc
     depends_on:
-      - minio
+      minio:
+        condition: service_healthy
+        restart: true
     entrypoint: >
       sh -c "
       /usr/bin/mc alias set impress http://minio:9000 impress password && \
@@ -59,10 +73,15 @@ services:
       - ./src/backend:/app
       - ./data/static:/data/static
     depends_on:
-        - postgresql
-        - mailcatcher
-        - redis
-        - createbuckets
+        postgresql:
+            condition: service_healthy
+            restart: true
+        mailcatcher:
+          condition: service_started
+        redis:
+          condition: service_started
+        createbuckets:
+          condition: service_started
   
   celery-dev:
     user: ${DOCKER_USER:-1000}
@@ -93,9 +112,13 @@ services:
       - env.d/development/common
       - env.d/development/postgresql
     depends_on:
-      - postgresql
-      - redis
-      - minio
+      postgresql:
+        condition: service_healthy
+        restart: true
+      redis:
+        condition: service_started
+      minio:
+        condition: service_started
 
   celery:
     user: ${DOCKER_USER:-1000}
@@ -116,11 +139,15 @@ services:
     volumes:
       - ./docker/files/etc/nginx/conf.d:/etc/nginx/conf.d:ro
     depends_on:
-      - keycloak
-      - app-dev
-      - y-provider
+      app-dev:
+        condition: service_started
+      y-provider:
+        condition: service_started
+      keycloak:
+        condition: service_healthy
+        restart: true
 
-  frontend-dev:
+  frontend:
     user: "${DOCKER_USER:-1000}"
     build: 
       context: .
@@ -135,9 +162,6 @@ services:
     ports:
       - "3000:3000"
 
-  dockerize:
-    image: jwilder/dockerize
-
   crowdin:
     image: crowdin/cli:3.16.0
     volumes:
@@ -151,7 +175,7 @@ services:
     image: node:18
     user: "${DOCKER_USER:-1000}"
     environment:
-      HOME: /tmp
+      HOME: /tmp 
     volumes:
       - ".:/app"
 
@@ -169,6 +193,11 @@ services:
 
   kc_postgresql:
     image: postgres:14.3
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -d $${POSTGRES_DB} -U $${POSTGRES_USER}"]
+      interval: 1s
+      timeout: 2s
+      retries: 300
     ports:
       - "5433:5432"
     env_file:
@@ -187,6 +216,13 @@ services:
       - --hostname-admin-url=http://localhost:8083/
       - --hostname-strict=false
       - --hostname-strict-https=false
+      - --health-enabled=true
+      - --metrics-enabled=true
+    healthcheck:
+      test: ["CMD", "curl", "--head", "-fsS", "http://localhost:8080/health/ready"]
+      interval: 1s
+      timeout: 2s
+      retries: 300
     environment:
       KEYCLOAK_ADMIN: admin
       KEYCLOAK_ADMIN_PASSWORD: admin
@@ -200,4 +236,6 @@ services:
     ports:
       - "8080:8080"
     depends_on:
-      - kc_postgresql
+      kc_postgresql:
+        condition: service_healthy
+        restart: true

docker/files/etc/nginx/conf.d/default.conf

@@ -68,6 +68,8 @@ server {
         # Get resource from Minio
         proxy_pass http://minio:9000/impress-media-storage/;
         proxy_set_header Host minio:9000;
+
+        add_header Content-Security-Policy "default-src 'none'" always;
     }
 
     location /media-auth {
@@ -88,5 +90,11 @@ server {
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+
+        # Increase proxy buffer size to allow keycloak to send large
+        # header responses when a user is created.
+        proxy_buffer_size 128k;
+        proxy_buffers 4 256k;
+        proxy_busy_buffers_size 256k;
     }
 }

docs/examples/impress.values.yaml

@@ -40,6 +40,7 @@ backend:
     LOGIN_REDIRECT_URL: https://impress.127.0.0.1.nip.io
     LOGIN_REDIRECT_URL_FAILURE: https://impress.127.0.0.1.nip.io
     LOGOUT_REDIRECT_URL: https://impress.127.0.0.1.nip.io
+    POSTHOG_KEY: "{'id': 'posthog_key', 'host': 'https://product.impress.127.0.0.1.nip.io'}"
     DB_HOST: postgresql
     DB_NAME: impress
     DB_USER: dinum
@@ -121,6 +122,12 @@ yProvider:
     COLLABORATION_SERVER_SECRET: my-secret
     Y_PROVIDER_API_KEY: my-secret
 
+posthog:
+  ingress:
+    enabled: false
+  ingressAssets:
+    enabled: false
+
 ingress:
   enabled: true
   host: impress.127.0.0.1.nip.io

env.d/development/common.dist

@@ -61,4 +61,4 @@ COLLABORATION_SERVER_SECRET=my-secret
 COLLABORATION_WS_URL=ws://localhost:8083/collaboration/ws/
 
 # Frontend
-FRONTEND_THEME=dsfr
+FRONTEND_THEME=default

env.d/development/crowdin.dist

@@ -1,3 +1,3 @@
-CROWDIN_API_TOKEN=Your-Api-Token
+CROWDIN_PERSONAL_TOKEN=Your-Personal-Token
 CROWDIN_PROJECT_ID=Your-Project-Id
 CROWDIN_BASE_PATH=/app/src

gitlint/gitlint_emoji.py

@@ -31,7 +31,7 @@ class GitmojiTitle(LineRule):
             "https://raw.githubusercontent.com/carloscuesta/gitmoji/master/packages/gitmojis/src/gitmojis.json"
         ).json()["gitmojis"]
         emojis = [item["emoji"] for item in gitmojis]
-        pattern = r"^({:s})\(.*\)\s[a-z].*$".format("|".join(emojis))
+        pattern = r"^({:s})\(.*\)\s[a-zA-Z].*$".format("|".join(emojis))
         if not re.search(pattern, title):
             violation_msg = 'Title does not match regex "<gitmoji>(<scope>) <subject>"'
             return [RuleViolation(self.id, violation_msg, title)]

publiccode.yml

@@ -0,0 +1,27 @@
+publiccodeYmlVersion: "2.4.0"
+name: Docs
+url: https://github.com/suitenumerique/docs
+landingURL: https://github.com/suitenumerique/docs
+creationDate: 2023-12-10
+logo: https://raw.githubusercontent.com/suitenumerique/docs/main/docs/assets/docs-logo.png
+usedBy:
+  - Direction interministériel du numérique (DINUM)
+fundedBy:
+  - name: Direction interministériel du numérique (DINUM)
+    url: https://www.numerique.gouv.fr
+roadmap: "https://github.com/orgs/suitenumerique/projects/2/views/1"
+softwareType: "standalone/other"
+description:
+  en:
+    shortDescription: "The open source document editor where your notes can become knowledge through live collaboration"
+  fr:
+    shortDescription: "L'éditeur de documents open source où vos notes peuvent devenir des connaissances grâce à la collaboration en direct."
+legal:
+  license: MIT
+maintenance:
+  type: internal
+  contacts:
+    - name: "Virgile Deville"
+      email: "virgile.deville@numerique.gouv.fr"
+    - name: "samuel.paccoud"
+      email: "samuel.paccoud@numerique.gouv.fr"

renovate.json

@@ -14,10 +14,10 @@
       "groupName": "ignored js dependencies",
       "matchManagers": ["npm"],
       "matchPackageNames": [
+        "eslint",
         "fetch-mock",
         "node",
         "node-fetch",
-        "eslint",
         "workbox-webpack-plugin"
       ]
     }

src/backend/core/admin.py

@@ -4,12 +4,16 @@ from django.contrib import admin
 from django.contrib.auth import admin as auth_admin
 from django.utils.translation import gettext_lazy as _
 
+from treebeard.admin import TreeAdmin
+from treebeard.forms import movenodeform_factory
+
 from . import models
 
 
 class TemplateAccessInline(admin.TabularInline):
     """Inline admin class for template accesses."""
 
+    autocomplete_fields = ["user"]
     model = models.TemplateAccess
     extra = 0
 
@@ -111,14 +115,47 @@ class TemplateAdmin(admin.ModelAdmin):
 class DocumentAccessInline(admin.TabularInline):
     """Inline admin class for template accesses."""
 
+    autocomplete_fields = ["user"]
     model = models.DocumentAccess
     extra = 0
 
 
 @admin.register(models.Document)
-class DocumentAdmin(admin.ModelAdmin):
+class DocumentAdmin(TreeAdmin):
     """Document admin interface declaration."""
 
+    fieldsets = (
+        (
+            None,
+            {
+                "fields": (
+                    "id",
+                    "title",
+                )
+            },
+        ),
+        (
+            _("Permissions"),
+            {
+                "fields": (
+                    "creator",
+                    "link_reach",
+                    "link_role",
+                )
+            },
+        ),
+        (
+            _("Tree structure"),
+            {
+                "fields": (
+                    "path",
+                    "depth",
+                    "numchild",
+                )
+            },
+        ),
+    )
+    form = movenodeform_factory(models.Document)
     inlines = (DocumentAccessInline,)
     list_display = (
         "id",
@@ -128,6 +165,14 @@ class DocumentAdmin(admin.ModelAdmin):
         "created_at",
         "updated_at",
     )
+    readonly_fields = (
+        "creator",
+        "depth",
+        "id",
+        "numchild",
+        "path",
+    )
+    search_fields = ("id", "title")
 
 
 @admin.register(models.Invitation)

src/backend/core/api/__init__.py

@@ -17,9 +17,10 @@ def exception_handler(exc, context):
     https://gist.github.com/twidi/9d55486c36b6a51bdcb05ce3a763e79f
     """
     if isinstance(exc, ValidationError):
-        detail = exc.message_dict
-
-        if hasattr(exc, "message"):
+        detail = None
+        if hasattr(exc, "message_dict"):
+            detail = exc.message_dict
+        elif hasattr(exc, "message"):
             detail = exc.message
         elif hasattr(exc, "messages"):
             detail = exc.messages

src/backend/core/api/filters.py

@@ -12,19 +12,30 @@ class DocumentFilter(django_filters.FilterSet):
     Custom filter for filtering documents.
     """
 
-    is_creator_me = django_filters.BooleanFilter(
-        method="filter_is_creator_me", label=_("Creator is me")
-    )
-    is_favorite = django_filters.BooleanFilter(
-        method="filter_is_favorite", label=_("Favorite")
-    )
     title = django_filters.CharFilter(
         field_name="title", lookup_expr="icontains", label=_("Title")
     )
 
     class Meta:
         model = models.Document
-        fields = ["is_creator_me", "is_favorite", "link_reach", "title"]
+        fields = ["title"]
+
+
+class ListDocumentFilter(DocumentFilter):
+    """
+    Custom filter for filtering documents.
+    """
+
+    is_creator_me = django_filters.BooleanFilter(
+        method="filter_is_creator_me", label=_("Creator is me")
+    )
+    is_favorite = django_filters.BooleanFilter(
+        method="filter_is_favorite", label=_("Favorite")
+    )
+
+    class Meta:
+        model = models.Document
+        fields = ["is_creator_me", "is_favorite", "title"]
 
     # pylint: disable=unused-argument
     def filter_is_creator_me(self, queryset, name, value):
@@ -63,7 +74,4 @@ class DocumentFilter(django_filters.FilterSet):
         if not user.is_authenticated:
             return queryset
 
-        if value:
-            return queryset.filter(favorited_by_users__user=user)
-
-        return queryset.exclude(favorited_by_users__user=user)
+        return queryset.filter(is_favorite=bool(value))

src/backend/core/api/permissions.py

@@ -2,13 +2,15 @@
 
 from django.core import exceptions
 from django.db.models import Q
+from django.http import Http404
 
 from rest_framework import permissions
 
-from core.models import DocumentAccess, RoleChoices
+from core.models import DocumentAccess, RoleChoices, get_trashbin_cutoff
 
 ACTION_FOR_METHOD_TO_PERMISSION = {
-    "versions_detail": {"DELETE": "versions_destroy", "GET": "versions_retrieve"}
+    "versions_detail": {"DELETE": "versions_destroy", "GET": "versions_retrieve"},
+    "children": {"GET": "children_list", "POST": "children_create"},
 }
 
 
@@ -109,3 +111,26 @@ class AccessPermission(permissions.BasePermission):
         except KeyError:
             pass
         return abilities.get(action, False)
+
+
+class DocumentAccessPermission(AccessPermission):
+    """Subclass to handle soft deletion specificities."""
+
+    def has_object_permission(self, request, view, obj):
+        """
+        Return a 404 on deleted documents
+        - for which the trashbin cutoff is past
+        - for which the current user is not owner of the document or one of its ancestors
+        """
+        if (
+            deleted_at := obj.ancestors_deleted_at
+        ) and deleted_at < get_trashbin_cutoff():
+            raise Http404
+
+        # Compute permission first to ensure the "user_roles" attribute is set
+        has_permission = super().has_object_permission(request, view, obj)
+
+        if obj.ancestors_deleted_at and not RoleChoices.OWNER in obj.user_roles:
+            raise Http404
+
+        return has_permission

src/backend/core/api/serializers.py

@@ -23,7 +23,7 @@ class UserSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = models.User
-        fields = ["id", "email", "full_name", "short_name"]
+        fields = ["id", "email", "full_name", "short_name", "language"]
         read_only_fields = ["id", "email", "full_name", "short_name"]
 
 
@@ -128,53 +128,79 @@ class TemplateAccessSerializer(BaseAccessSerializer):
         read_only_fields = ["id", "abilities"]
 
 
-class BaseResourceSerializer(serializers.ModelSerializer):
-    """Serialize documents."""
-
-    abilities = serializers.SerializerMethodField(read_only=True)
-    accesses = TemplateAccessSerializer(many=True, read_only=True)
-
-    def get_abilities(self, document) -> dict:
-        """Return abilities of the logged-in user on the instance."""
-        request = self.context.get("request")
-        if request:
-            return document.get_abilities(request.user)
-        return {}
-
-
-class ListDocumentSerializer(BaseResourceSerializer):
+class ListDocumentSerializer(serializers.ModelSerializer):
     """Serialize documents with limited fields for display in lists."""
 
     is_favorite = serializers.BooleanField(read_only=True)
-    nb_accesses = serializers.IntegerField(read_only=True)
+    nb_accesses_ancestors = serializers.IntegerField(read_only=True)
+    nb_accesses_direct = serializers.IntegerField(read_only=True)
+    user_roles = serializers.SerializerMethodField(read_only=True)
+    abilities = serializers.SerializerMethodField(read_only=True)
 
     class Meta:
         model = models.Document
         fields = [
             "id",
             "abilities",
-            "content",
             "created_at",
             "creator",
+            "depth",
+            "excerpt",
             "is_favorite",
             "link_role",
             "link_reach",
-            "nb_accesses",
+            "nb_accesses_ancestors",
+            "nb_accesses_direct",
+            "numchild",
+            "path",
             "title",
             "updated_at",
+            "user_roles",
         ]
         read_only_fields = [
             "id",
             "abilities",
             "created_at",
             "creator",
+            "depth",
+            "excerpt",
             "is_favorite",
             "link_role",
             "link_reach",
-            "nb_accesses",
+            "nb_accesses_ancestors",
+            "nb_accesses_direct",
+            "numchild",
+            "path",
             "updated_at",
+            "user_roles",
         ]
 
+    def get_abilities(self, document) -> dict:
+        """Return abilities of the logged-in user on the instance."""
+        request = self.context.get("request")
+
+        if request:
+            paths_links_mapping = self.context.get("paths_links_mapping", None)
+            # Retrieve ancestor links from paths_links_mapping (if provided)
+            ancestors_links = (
+                paths_links_mapping.get(document.path[: -document.steplen])
+                if paths_links_mapping
+                else None
+            )
+            return document.get_abilities(request.user, ancestors_links=ancestors_links)
+
+        return {}
+
+    def get_user_roles(self, document):
+        """
+        Return roles of the logged-in user for the current document,
+        taking into account ancestors.
+        """
+        request = self.context.get("request")
+        if request:
+            return document.get_roles(request.user)
+        return []
+
 
 class DocumentSerializer(ListDocumentSerializer):
     """Serialize documents with all fields for display in detail views."""
@@ -189,23 +215,34 @@ class DocumentSerializer(ListDocumentSerializer):
             "content",
             "created_at",
             "creator",
+            "depth",
+            "excerpt",
             "is_favorite",
             "link_role",
             "link_reach",
-            "nb_accesses",
+            "nb_accesses_ancestors",
+            "nb_accesses_direct",
+            "numchild",
+            "path",
             "title",
             "updated_at",
+            "user_roles",
         ]
         read_only_fields = [
             "id",
             "abilities",
             "created_at",
             "creator",
+            "depth",
             "is_favorite",
             "link_role",
             "link_reach",
-            "nb_accesses",
+            "nb_accesses_ancestors",
+            "nb_accesses_direct",
+            "numchild",
+            "path",
             "updated_at",
+            "user_roles",
         ]
 
     def get_fields(self):
@@ -287,7 +324,7 @@ class ServerCreateDocumentSerializer(serializers.Serializer):
                 {"content": ["Could not convert content"]}
             ) from err
 
-        document = models.Document.objects.create(
+        document = models.Document.add_root(
             title=validated_data["title"],
             content=document_content,
             creator=user,
@@ -330,7 +367,7 @@ class ServerCreateDocumentSerializer(serializers.Serializer):
         raise NotImplementedError("Update is not supported for this serializer.")
 
 
-class LinkDocumentSerializer(BaseResourceSerializer):
+class LinkDocumentSerializer(serializers.ModelSerializer):
     """
     Serialize link configuration for documents.
     We expose it separately from document in order to simplify and secure access control.
@@ -388,6 +425,8 @@ class FileUploadSerializer(serializers.Serializer):
             raise serializers.ValidationError("Could not determine file extension.")
 
         self.context["expected_extension"] = extension
+        self.context["content_type"] = magic_mime_type
+        self.context["file_name"] = file.name
 
         return file
 
@@ -395,12 +434,17 @@ class FileUploadSerializer(serializers.Serializer):
         """Override validate to add the computed extension to validated_data."""
         attrs["expected_extension"] = self.context["expected_extension"]
         attrs["is_unsafe"] = self.context["is_unsafe"]
+        attrs["content_type"] = self.context["content_type"]
+        attrs["file_name"] = self.context["file_name"]
         return attrs
 
 
-class TemplateSerializer(BaseResourceSerializer):
+class TemplateSerializer(serializers.ModelSerializer):
     """Serialize templates."""
 
+    abilities = serializers.SerializerMethodField(read_only=True)
+    accesses = TemplateAccessSerializer(many=True, read_only=True)
+
     class Meta:
         model = models.Template
         fields = [
@@ -414,6 +458,13 @@ class TemplateSerializer(BaseResourceSerializer):
         ]
         read_only_fields = ["id", "accesses", "abilities"]
 
+    def get_abilities(self, document) -> dict:
+        """Return abilities of the logged-in user on the instance."""
+        request = self.context.get("request")
+        if request:
+            return document.get_abilities(request.user)
+        return {}
+
 
 # pylint: disable=abstract-method
 class DocumentGenerationSerializer(serializers.Serializer):
@@ -537,3 +588,37 @@ class AITranslateSerializer(serializers.Serializer):
         if len(value.strip()) == 0:
             raise serializers.ValidationError("Text field cannot be empty.")
         return value
+
+
+class MoveDocumentSerializer(serializers.Serializer):
+    """
+    Serializer for validating input data to move a document within the tree structure.
+
+    Fields:
+        - target_document_id (UUIDField): The ID of the target parent document where the
+            document should be moved. This field is required and must be a valid UUID.
+        - position (ChoiceField): Specifies the position of the document in relation to
+            the target parent's children.
+          Choices:
+            - "first-child": Place the document as the first child of the target parent.
+            - "last-child": Place the document as the last child of the target parent (default).
+            - "left": Place the document as the left sibling of the target parent.
+            - "right": Place the document as the right sibling of the target parent.
+
+    Example:
+        Input payload for moving a document:
+        {
+            "target_document_id": "123e4567-e89b-12d3-a456-426614174000",
+            "position": "first-child"
+        }
+
+    Notes:
+        - The `target_document_id` is mandatory.
+        - The `position` defaults to "last-child" if not provided.
+    """
+
+    target_document_id = serializers.UUIDField(required=True)
+    position = serializers.ChoiceField(
+        choices=enums.MoveNodePositionChoices.choices,
+        default=enums.MoveNodePositionChoices.LAST_CHILD,
+    )

src/backend/core/api/utils.py

@@ -11,6 +11,58 @@ import botocore
 from rest_framework.throttling import BaseThrottle
 
 
+def nest_tree(flat_list, steplen):
+    """
+    Convert a flat list of serialized documents into a nested tree making advantage
+    of the`path` field and its step length.
+    """
+    node_dict = {}
+    roots = []
+
+    # Sort the flat list by path to ensure parent nodes are processed first
+    flat_list.sort(key=lambda x: x["path"])
+
+    for node in flat_list:
+        node["children"] = []  # Initialize children list
+        node_dict[node["path"]] = node
+
+        # Determine parent path
+        parent_path = node["path"][:-steplen]
+
+        if parent_path in node_dict:
+            node_dict[parent_path]["children"].append(node)
+        else:
+            roots.append(node)  # Collect root nodes
+
+    if len(roots) > 1:
+        raise ValueError("More than one root element detected.")
+
+    return roots[0] if roots else None
+
+
+def filter_root_paths(paths, skip_sorting=False):
+    """
+    Filters root paths from a list of paths representing a tree structure.
+    A root path is defined as a path that is not a prefix of any other path.
+
+    Args:
+        paths (list of str): The list of paths.
+
+    Returns:
+        list of str: The filtered list of root paths.
+    """
+    if not skip_sorting:
+        paths.sort()
+
+    root_paths = []
+    for path in paths:
+        # If the current path is not a prefix of the last added root path, add it
+        if not root_paths or not path.startswith(root_paths[-1]):
+            root_paths.append(path)
+
+    return root_paths
+
+
 def generate_s3_authorization_headers(key):
     """
     Generate authorization headers for an s3 object.

src/backend/core/enums.py

@@ -3,6 +3,7 @@ Core application enums declaration
 """
 
 from django.conf import global_settings
+from django.db import models
 from django.utils.translation import gettext_lazy as _
 
 # In Django's code base, `LANGUAGES` is set by default with all supported languages.
@@ -10,3 +11,14 @@ from django.utils.translation import gettext_lazy as _
 # active in the app.
 # pylint: disable=no-member
 ALL_LANGUAGES = {language: _(name) for language, name in global_settings.LANGUAGES}
+
+
+class MoveNodePositionChoices(models.TextChoices):
+    """Defines the possible positions when moving a django-treebeard node."""
+
+    FIRST_CHILD = "first-child", _("First child")
+    LAST_CHILD = "last-child", _("Last child")
+    FIRST_SIBLING = "first-sibling", _("First sibling")
+    LAST_SIBLING = "last-sibling", _("Last sibling")
+    LEFT = "left", _("Left")
+    RIGHT = "right", _("Right")

src/backend/core/factories.py

@@ -46,6 +46,23 @@ class UserFactory(factory.django.DjangoModelFactory):
             UserTemplateAccessFactory(user=self, role="owner")
 
 
+class ParentNodeFactory(factory.declarations.ParameteredAttribute):
+    """Custom factory attribute for setting the parent node."""
+
+    def generate(self, step, params):
+        """
+        Generate a parent node for the factory.
+
+        This method is invoked during the factory's build process to determine the parent
+        node of the current object being created. If `params` is provided, it uses the factory's
+        metadata to recursively create or fetch the parent node. Otherwise, it returns `None`.
+        """
+        if not params:
+            return None
+        subfactory = step.builder.factory_meta.factory
+        return step.recurse(subfactory, params)
+
+
 class DocumentFactory(factory.django.DjangoModelFactory):
     """A factory to create documents"""
 
@@ -54,9 +71,13 @@ class DocumentFactory(factory.django.DjangoModelFactory):
         django_get_or_create = ("title",)
         skip_postgeneration_save = True
 
+    parent = ParentNodeFactory()
+
     title = factory.Sequence(lambda n: f"document{n}")
+    excerpt = factory.Sequence(lambda n: f"excerpt{n}")
     content = factory.Sequence(lambda n: f"content{n}")
     creator = factory.SubFactory(UserFactory)
+    deleted_at = None
     link_reach = factory.fuzzy.FuzzyChoice(
         [a[0] for a in models.LinkReachChoices.choices]
     )
@@ -64,6 +85,29 @@ class DocumentFactory(factory.django.DjangoModelFactory):
         [r[0] for r in models.LinkRoleChoices.choices]
     )
 
+    @classmethod
+    def _create(cls, model_class, *args, **kwargs):
+        """
+        Custom creation logic for the factory: creates a document as a child node if
+        a parent is provided; otherwise, creates it as a root node.
+        """
+        parent = kwargs.pop("parent", None)
+
+        if parent:
+            # Add as a child node
+            kwargs["ancestors_deleted_at"] = (
+                kwargs.get("ancestors_deleted_at") or parent.ancestors_deleted_at
+            )
+            return parent.add_child(instance=model_class(**kwargs))
+
+        # Add as a root node
+        return model_class.add_root(instance=model_class(**kwargs))
+
+    @factory.lazy_attribute
+    def ancestors_deleted_at(self):
+        """Should always be set when "deleted_at" is set."""
+        return self.deleted_at
+
     @factory.post_generation
     def users(self, create, extracted, **kwargs):
         """Add users to document from a given list of users with or without roles."""
@@ -74,6 +118,16 @@ class DocumentFactory(factory.django.DjangoModelFactory):
                 else:
                     UserDocumentAccessFactory(document=self, user=item[0], role=item[1])
 
+    @factory.post_generation
+    def teams(self, create, extracted, **kwargs):
+        """Add teams to document from a given list of teams with or without roles."""
+        if create and extracted:
+            for item in extracted:
+                if isinstance(item, str):
+                    TeamDocumentAccessFactory(document=self, team=item)
+                else:
+                    TeamDocumentAccessFactory(document=self, team=item[0], role=item[1])
+
     @factory.post_generation
     def link_traces(self, create, extracted, **kwargs):
         """Add link traces to document from a given list of users."""

src/backend/core/management/commands/update_files_content_type_metadata.py

@@ -0,0 +1,95 @@
+"""Management command updating the metadata for all the files in the MinIO bucket."""
+
+from django.core.files.storage import default_storage
+from django.core.management.base import BaseCommand
+
+import magic
+
+from core.models import Document
+
+# pylint: disable=too-many-locals, broad-exception-caught
+
+
+class Command(BaseCommand):
+    """Update the metadata for all the files in the MinIO bucket."""
+
+    help = __doc__
+
+    def handle(self, *args, **options):
+        """Execute management command."""
+        s3_client = default_storage.connection.meta.client
+        bucket_name = default_storage.bucket_name
+
+        mime_detector = magic.Magic(mime=True)
+
+        documents = Document.objects.all()
+        self.stdout.write(
+            f"[INFO] Found {documents.count()} documents. Starting ContentType fix..."
+        )
+
+        for doc in documents:
+            doc_id_str = str(doc.id)
+            prefix = f"{doc_id_str}/attachments/"
+            self.stdout.write(
+                f"[INFO] Processing attachments under prefix '{prefix}' ..."
+            )
+
+            continuation_token = None
+            total_updated = 0
+
+            while True:
+                list_kwargs = {"Bucket": bucket_name, "Prefix": prefix}
+                if continuation_token:
+                    list_kwargs["ContinuationToken"] = continuation_token
+
+                response = s3_client.list_objects_v2(**list_kwargs)
+
+                # If no objects found under this prefix, break out of the loop
+                if "Contents" not in response:
+                    break
+
+                for obj in response["Contents"]:
+                    key = obj["Key"]
+
+                    # Skip if it's a folder
+                    if key.endswith("/"):
+                        continue
+
+                    try:
+                        # Get existing metadata
+                        head_resp = s3_client.head_object(Bucket=bucket_name, Key=key)
+
+                        # Read first ~1KB for MIME detection
+                        partial_obj = s3_client.get_object(
+                            Bucket=bucket_name, Key=key, Range="bytes=0-1023"
+                        )
+                        partial_data = partial_obj["Body"].read()
+
+                        # Detect MIME type
+                        magic_mime_type = mime_detector.from_buffer(partial_data)
+
+                        # Update ContentType
+                        s3_client.copy_object(
+                            Bucket=bucket_name,
+                            CopySource={"Bucket": bucket_name, "Key": key},
+                            Key=key,
+                            ContentType=magic_mime_type,
+                            Metadata=head_resp.get("Metadata", {}),
+                            MetadataDirective="REPLACE",
+                        )
+                        total_updated += 1
+
+                    except Exception as exc:  # noqa
+                        self.stderr.write(
+                            f"[ERROR] Could not update ContentType for {key}: {exc}"
+                        )
+
+                if response.get("IsTruncated"):
+                    continuation_token = response.get("NextContinuationToken")
+                else:
+                    break
+
+            if total_updated > 0:
+                self.stdout.write(
+                    f"[INFO] -> Updated {total_updated} objects for Document {doc_id_str}."
+                )

src/backend/core/migrations/0001_initial.py

@@ -1,166 +1,552 @@
 # Generated by Django 5.0.3 on 2024-05-28 20:29
 
+import uuid
+
 import django.contrib.auth.models
 import django.core.validators
 import django.db.models.deletion
-import timezone_field.fields
-import uuid
 from django.conf import settings
 from django.db import migrations, models
 
+import timezone_field.fields
+
 
 class Migration(migrations.Migration):
-
     initial = True
 
     dependencies = [
-        ('auth', '0012_alter_user_first_name_max_length'),
+        ("auth", "0012_alter_user_first_name_max_length"),
     ]
 
     operations = [
         migrations.CreateModel(
-            name='Document',
+            name="Document",
             fields=[
-                ('id', models.UUIDField(default=uuid.uuid4, editable=False, help_text='primary key for the record as UUID', primary_key=True, serialize=False, verbose_name='id')),
-                ('created_at', models.DateTimeField(auto_now_add=True, help_text='date and time at which a record was created', verbose_name='created on')),
-                ('updated_at', models.DateTimeField(auto_now=True, help_text='date and time at which a record was last updated', verbose_name='updated on')),
-                ('title', models.CharField(max_length=255, verbose_name='title')),
-                ('is_public', models.BooleanField(default=False, help_text='Whether this document is public for anyone to use.', verbose_name='public')),
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="primary key for the record as UUID",
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="id",
+                    ),
+                ),
+                (
+                    "created_at",
+                    models.DateTimeField(
+                        auto_now_add=True,
+                        help_text="date and time at which a record was created",
+                        verbose_name="created on",
+                    ),
+                ),
+                (
+                    "updated_at",
+                    models.DateTimeField(
+                        auto_now=True,
+                        help_text="date and time at which a record was last updated",
+                        verbose_name="updated on",
+                    ),
+                ),
+                ("title", models.CharField(max_length=255, verbose_name="title")),
+                (
+                    "is_public",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Whether this document is public for anyone to use.",
+                        verbose_name="public",
+                    ),
+                ),
             ],
             options={
-                'verbose_name': 'Document',
-                'verbose_name_plural': 'Documents',
-                'db_table': 'impress_document',
-                'ordering': ('title',),
+                "verbose_name": "Document",
+                "verbose_name_plural": "Documents",
+                "db_table": "impress_document",
+                "ordering": ("title",),
             },
         ),
         migrations.CreateModel(
-            name='Template',
+            name="Template",
             fields=[
-                ('id', models.UUIDField(default=uuid.uuid4, editable=False, help_text='primary key for the record as UUID', primary_key=True, serialize=False, verbose_name='id')),
-                ('created_at', models.DateTimeField(auto_now_add=True, help_text='date and time at which a record was created', verbose_name='created on')),
-                ('updated_at', models.DateTimeField(auto_now=True, help_text='date and time at which a record was last updated', verbose_name='updated on')),
-                ('title', models.CharField(max_length=255, verbose_name='title')),
-                ('description', models.TextField(blank=True, verbose_name='description')),
-                ('code', models.TextField(blank=True, verbose_name='code')),
-                ('css', models.TextField(blank=True, verbose_name='css')),
-                ('is_public', models.BooleanField(default=False, help_text='Whether this template is public for anyone to use.', verbose_name='public')),
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="primary key for the record as UUID",
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="id",
+                    ),
+                ),
+                (
+                    "created_at",
+                    models.DateTimeField(
+                        auto_now_add=True,
+                        help_text="date and time at which a record was created",
+                        verbose_name="created on",
+                    ),
+                ),
+                (
+                    "updated_at",
+                    models.DateTimeField(
+                        auto_now=True,
+                        help_text="date and time at which a record was last updated",
+                        verbose_name="updated on",
+                    ),
+                ),
+                ("title", models.CharField(max_length=255, verbose_name="title")),
+                (
+                    "description",
+                    models.TextField(blank=True, verbose_name="description"),
+                ),
+                ("code", models.TextField(blank=True, verbose_name="code")),
+                ("css", models.TextField(blank=True, verbose_name="css")),
+                (
+                    "is_public",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Whether this template is public for anyone to use.",
+                        verbose_name="public",
+                    ),
+                ),
             ],
             options={
-                'verbose_name': 'Template',
-                'verbose_name_plural': 'Templates',
-                'db_table': 'impress_template',
-                'ordering': ('title',),
+                "verbose_name": "Template",
+                "verbose_name_plural": "Templates",
+                "db_table": "impress_template",
+                "ordering": ("title",),
             },
         ),
         migrations.CreateModel(
-            name='User',
+            name="User",
             fields=[
-                ('password', models.CharField(max_length=128, verbose_name='password')),
-                ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')),
-                ('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')),
-                ('id', models.UUIDField(default=uuid.uuid4, editable=False, help_text='primary key for the record as UUID', primary_key=True, serialize=False, verbose_name='id')),
-                ('created_at', models.DateTimeField(auto_now_add=True, help_text='date and time at which a record was created', verbose_name='created on')),
-                ('updated_at', models.DateTimeField(auto_now=True, help_text='date and time at which a record was last updated', verbose_name='updated on')),
-                ('sub', models.CharField(blank=True, help_text='Required. 255 characters or fewer. Letters, numbers, and @/./+/-/_ characters only.', max_length=255, null=True, unique=True, validators=[django.core.validators.RegexValidator(message='Enter a valid sub. This value may contain only letters, numbers, and @/./+/-/_ characters.', regex='^[\\w.@+-]+\\Z')], verbose_name='sub')),
-                ('email', models.EmailField(blank=True, max_length=254, null=True, verbose_name='identity email address')),
-                ('admin_email', models.EmailField(blank=True, max_length=254, null=True, unique=True, verbose_name='admin email address')),
-                ('language', models.CharField(choices="(('en-us', 'English'), ('fr-fr', 'French'))", default='en-us', help_text='The language in which the user wants to see the interface.', max_length=10, verbose_name='language')),
-                ('timezone', timezone_field.fields.TimeZoneField(choices_display='WITH_GMT_OFFSET', default='UTC', help_text='The timezone in which the user wants to see times.', use_pytz=False)),
-                ('is_device', models.BooleanField(default=False, help_text='Whether the user is a device or a real user.', verbose_name='device')),
-                ('is_staff', models.BooleanField(default=False, help_text='Whether the user can log into this admin site.', verbose_name='staff status')),
-                ('is_active', models.BooleanField(default=True, help_text='Whether this user should be treated as active. Unselect this instead of deleting accounts.', verbose_name='active')),
-                ('groups', models.ManyToManyField(blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', related_name='user_set', related_query_name='user', to='auth.group', verbose_name='groups')),
-                ('user_permissions', models.ManyToManyField(blank=True, help_text='Specific permissions for this user.', related_name='user_set', related_query_name='user', to='auth.permission', verbose_name='user permissions')),
+                ("password", models.CharField(max_length=128, verbose_name="password")),
+                (
+                    "last_login",
+                    models.DateTimeField(
+                        blank=True, null=True, verbose_name="last login"
+                    ),
+                ),
+                (
+                    "is_superuser",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Designates that this user has all permissions without explicitly assigning them.",
+                        verbose_name="superuser status",
+                    ),
+                ),
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="primary key for the record as UUID",
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="id",
+                    ),
+                ),
+                (
+                    "created_at",
+                    models.DateTimeField(
+                        auto_now_add=True,
+                        help_text="date and time at which a record was created",
+                        verbose_name="created on",
+                    ),
+                ),
+                (
+                    "updated_at",
+                    models.DateTimeField(
+                        auto_now=True,
+                        help_text="date and time at which a record was last updated",
+                        verbose_name="updated on",
+                    ),
+                ),
+                (
+                    "sub",
+                    models.CharField(
+                        blank=True,
+                        help_text="Required. 255 characters or fewer. Letters, numbers, and @/./+/-/_ characters only.",
+                        max_length=255,
+                        null=True,
+                        unique=True,
+                        validators=[
+                            django.core.validators.RegexValidator(
+                                message="Enter a valid sub. This value may contain only letters, numbers, and @/./+/-/_ characters.",
+                                regex="^[\\w.@+-]+\\Z",
+                            )
+                        ],
+                        verbose_name="sub",
+                    ),
+                ),
+                (
+                    "email",
+                    models.EmailField(
+                        blank=True,
+                        max_length=254,
+                        null=True,
+                        verbose_name="identity email address",
+                    ),
+                ),
+                (
+                    "admin_email",
+                    models.EmailField(
+                        blank=True,
+                        max_length=254,
+                        null=True,
+                        unique=True,
+                        verbose_name="admin email address",
+                    ),
+                ),
+                (
+                    "language",
+                    models.CharField(
+                        choices="(('en-us', 'English'), ('fr-fr', 'French'))",
+                        default="en-us",
+                        help_text="The language in which the user wants to see the interface.",
+                        max_length=10,
+                        verbose_name="language",
+                    ),
+                ),
+                (
+                    "timezone",
+                    timezone_field.fields.TimeZoneField(
+                        choices_display="WITH_GMT_OFFSET",
+                        default="UTC",
+                        help_text="The timezone in which the user wants to see times.",
+                        use_pytz=False,
+                    ),
+                ),
+                (
+                    "is_device",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Whether the user is a device or a real user.",
+                        verbose_name="device",
+                    ),
+                ),
+                (
+                    "is_staff",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Whether the user can log into this admin site.",
+                        verbose_name="staff status",
+                    ),
+                ),
+                (
+                    "is_active",
+                    models.BooleanField(
+                        default=True,
+                        help_text="Whether this user should be treated as active. Unselect this instead of deleting accounts.",
+                        verbose_name="active",
+                    ),
+                ),
+                (
+                    "groups",
+                    models.ManyToManyField(
+                        blank=True,
+                        help_text="The groups this user belongs to. A user will get all permissions granted to each of their groups.",
+                        related_name="user_set",
+                        related_query_name="user",
+                        to="auth.group",
+                        verbose_name="groups",
+                    ),
+                ),
+                (
+                    "user_permissions",
+                    models.ManyToManyField(
+                        blank=True,
+                        help_text="Specific permissions for this user.",
+                        related_name="user_set",
+                        related_query_name="user",
+                        to="auth.permission",
+                        verbose_name="user permissions",
+                    ),
+                ),
             ],
             options={
-                'verbose_name': 'user',
-                'verbose_name_plural': 'users',
-                'db_table': 'impress_user',
+                "verbose_name": "user",
+                "verbose_name_plural": "users",
+                "db_table": "impress_user",
             },
             managers=[
-                ('objects', django.contrib.auth.models.UserManager()),
+                ("objects", django.contrib.auth.models.UserManager()),
             ],
         ),
         migrations.CreateModel(
-            name='DocumentAccess',
+            name="DocumentAccess",
             fields=[
-                ('id', models.UUIDField(default=uuid.uuid4, editable=False, help_text='primary key for the record as UUID', primary_key=True, serialize=False, verbose_name='id')),
-                ('created_at', models.DateTimeField(auto_now_add=True, help_text='date and time at which a record was created', verbose_name='created on')),
-                ('updated_at', models.DateTimeField(auto_now=True, help_text='date and time at which a record was last updated', verbose_name='updated on')),
-                ('team', models.CharField(blank=True, max_length=100)),
-                ('role', models.CharField(choices=[('reader', 'Reader'), ('editor', 'Editor'), ('administrator', 'Administrator'), ('owner', 'Owner')], default='reader', max_length=20)),
-                ('document', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='accesses', to='core.document')),
-                ('user', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="primary key for the record as UUID",
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="id",
+                    ),
+                ),
+                (
+                    "created_at",
+                    models.DateTimeField(
+                        auto_now_add=True,
+                        help_text="date and time at which a record was created",
+                        verbose_name="created on",
+                    ),
+                ),
+                (
+                    "updated_at",
+                    models.DateTimeField(
+                        auto_now=True,
+                        help_text="date and time at which a record was last updated",
+                        verbose_name="updated on",
+                    ),
+                ),
+                ("team", models.CharField(blank=True, max_length=100)),
+                (
+                    "role",
+                    models.CharField(
+                        choices=[
+                            ("reader", "Reader"),
+                            ("editor", "Editor"),
+                            ("administrator", "Administrator"),
+                            ("owner", "Owner"),
+                        ],
+                        default="reader",
+                        max_length=20,
+                    ),
+                ),
+                (
+                    "document",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="accesses",
+                        to="core.document",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
             ],
             options={
-                'verbose_name': 'Document/user relation',
-                'verbose_name_plural': 'Document/user relations',
-                'db_table': 'impress_document_access',
-                'ordering': ('-created_at',),
+                "verbose_name": "Document/user relation",
+                "verbose_name_plural": "Document/user relations",
+                "db_table": "impress_document_access",
+                "ordering": ("-created_at",),
             },
         ),
         migrations.CreateModel(
-            name='Invitation',
+            name="Invitation",
             fields=[
-                ('id', models.UUIDField(default=uuid.uuid4, editable=False, help_text='primary key for the record as UUID', primary_key=True, serialize=False, verbose_name='id')),
-                ('created_at', models.DateTimeField(auto_now_add=True, help_text='date and time at which a record was created', verbose_name='created on')),
-                ('updated_at', models.DateTimeField(auto_now=True, help_text='date and time at which a record was last updated', verbose_name='updated on')),
-                ('email', models.EmailField(max_length=254, verbose_name='email address')),
-                ('role', models.CharField(choices=[('reader', 'Reader'), ('editor', 'Editor'), ('administrator', 'Administrator'), ('owner', 'Owner')], default='reader', max_length=20)),
-                ('document', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='invitations', to='core.document')),
-                ('issuer', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='invitations', to=settings.AUTH_USER_MODEL)),
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="primary key for the record as UUID",
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="id",
+                    ),
+                ),
+                (
+                    "created_at",
+                    models.DateTimeField(
+                        auto_now_add=True,
+                        help_text="date and time at which a record was created",
+                        verbose_name="created on",
+                    ),
+                ),
+                (
+                    "updated_at",
+                    models.DateTimeField(
+                        auto_now=True,
+                        help_text="date and time at which a record was last updated",
+                        verbose_name="updated on",
+                    ),
+                ),
+                (
+                    "email",
+                    models.EmailField(max_length=254, verbose_name="email address"),
+                ),
+                (
+                    "role",
+                    models.CharField(
+                        choices=[
+                            ("reader", "Reader"),
+                            ("editor", "Editor"),
+                            ("administrator", "Administrator"),
+                            ("owner", "Owner"),
+                        ],
+                        default="reader",
+                        max_length=20,
+                    ),
+                ),
+                (
+                    "document",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="invitations",
+                        to="core.document",
+                    ),
+                ),
+                (
+                    "issuer",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="invitations",
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
             ],
             options={
-                'verbose_name': 'Document invitation',
-                'verbose_name_plural': 'Document invitations',
-                'db_table': 'impress_invitation',
+                "verbose_name": "Document invitation",
+                "verbose_name_plural": "Document invitations",
+                "db_table": "impress_invitation",
             },
         ),
         migrations.CreateModel(
-            name='TemplateAccess',
+            name="TemplateAccess",
             fields=[
-                ('id', models.UUIDField(default=uuid.uuid4, editable=False, help_text='primary key for the record as UUID', primary_key=True, serialize=False, verbose_name='id')),
-                ('created_at', models.DateTimeField(auto_now_add=True, help_text='date and time at which a record was created', verbose_name='created on')),
-                ('updated_at', models.DateTimeField(auto_now=True, help_text='date and time at which a record was last updated', verbose_name='updated on')),
-                ('team', models.CharField(blank=True, max_length=100)),
-                ('role', models.CharField(choices=[('reader', 'Reader'), ('editor', 'Editor'), ('administrator', 'Administrator'), ('owner', 'Owner')], default='reader', max_length=20)),
-                ('template', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='accesses', to='core.template')),
-                ('user', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="primary key for the record as UUID",
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="id",
+                    ),
+                ),
+                (
+                    "created_at",
+                    models.DateTimeField(
+                        auto_now_add=True,
+                        help_text="date and time at which a record was created",
+                        verbose_name="created on",
+                    ),
+                ),
+                (
+                    "updated_at",
+                    models.DateTimeField(
+                        auto_now=True,
+                        help_text="date and time at which a record was last updated",
+                        verbose_name="updated on",
+                    ),
+                ),
+                ("team", models.CharField(blank=True, max_length=100)),
+                (
+                    "role",
+                    models.CharField(
+                        choices=[
+                            ("reader", "Reader"),
+                            ("editor", "Editor"),
+                            ("administrator", "Administrator"),
+                            ("owner", "Owner"),
+                        ],
+                        default="reader",
+                        max_length=20,
+                    ),
+                ),
+                (
+                    "template",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="accesses",
+                        to="core.template",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
             ],
             options={
-                'verbose_name': 'Template/user relation',
-                'verbose_name_plural': 'Template/user relations',
-                'db_table': 'impress_template_access',
-                'ordering': ('-created_at',),
+                "verbose_name": "Template/user relation",
+                "verbose_name_plural": "Template/user relations",
+                "db_table": "impress_template_access",
+                "ordering": ("-created_at",),
             },
         ),
         migrations.AddConstraint(
-            model_name='documentaccess',
-            constraint=models.UniqueConstraint(condition=models.Q(('user__isnull', False)), fields=('user', 'document'), name='unique_document_user', violation_error_message='This user is already in this document.'),
+            model_name="documentaccess",
+            constraint=models.UniqueConstraint(
+                condition=models.Q(("user__isnull", False)),
+                fields=("user", "document"),
+                name="unique_document_user",
+                violation_error_message="This user is already in this document.",
+            ),
         ),
         migrations.AddConstraint(
-            model_name='documentaccess',
-            constraint=models.UniqueConstraint(condition=models.Q(('team__gt', '')), fields=('team', 'document'), name='unique_document_team', violation_error_message='This team is already in this document.'),
+            model_name="documentaccess",
+            constraint=models.UniqueConstraint(
+                condition=models.Q(("team__gt", "")),
+                fields=("team", "document"),
+                name="unique_document_team",
+                violation_error_message="This team is already in this document.",
+            ),
         ),
         migrations.AddConstraint(
-            model_name='documentaccess',
-            constraint=models.CheckConstraint(check=models.Q(models.Q(('team', ''), ('user__isnull', False)), models.Q(('team__gt', ''), ('user__isnull', True)), _connector='OR'), name='check_document_access_either_user_or_team', violation_error_message='Either user or team must be set, not both.'),
+            model_name="documentaccess",
+            constraint=models.CheckConstraint(
+                check=models.Q(
+                    models.Q(("team", ""), ("user__isnull", False)),
+                    models.Q(("team__gt", ""), ("user__isnull", True)),
+                    _connector="OR",
+                ),
+                name="check_document_access_either_user_or_team",
+                violation_error_message="Either user or team must be set, not both.",
+            ),
         ),
         migrations.AddConstraint(
-            model_name='invitation',
-            constraint=models.UniqueConstraint(fields=('email', 'document'), name='email_and_document_unique_together'),
+            model_name="invitation",
+            constraint=models.UniqueConstraint(
+                fields=("email", "document"), name="email_and_document_unique_together"
+            ),
         ),
         migrations.AddConstraint(
-            model_name='templateaccess',
-            constraint=models.UniqueConstraint(condition=models.Q(('user__isnull', False)), fields=('user', 'template'), name='unique_template_user', violation_error_message='This user is already in this template.'),
+            model_name="templateaccess",
+            constraint=models.UniqueConstraint(
+                condition=models.Q(("user__isnull", False)),
+                fields=("user", "template"),
+                name="unique_template_user",
+                violation_error_message="This user is already in this template.",
+            ),
         ),
         migrations.AddConstraint(
-            model_name='templateaccess',
-            constraint=models.UniqueConstraint(condition=models.Q(('team__gt', '')), fields=('team', 'template'), name='unique_template_team', violation_error_message='This team is already in this template.'),
+            model_name="templateaccess",
+            constraint=models.UniqueConstraint(
+                condition=models.Q(("team__gt", "")),
+                fields=("team", "template"),
+                name="unique_template_team",
+                violation_error_message="This team is already in this template.",
+            ),
         ),
         migrations.AddConstraint(
-            model_name='templateaccess',
-            constraint=models.CheckConstraint(check=models.Q(models.Q(('team', ''), ('user__isnull', False)), models.Q(('team__gt', ''), ('user__isnull', True)), _connector='OR'), name='check_template_access_either_user_or_team', violation_error_message='Either user or team must be set, not both.'),
+            model_name="templateaccess",
+            constraint=models.CheckConstraint(
+                check=models.Q(
+                    models.Q(("team", ""), ("user__isnull", False)),
+                    models.Q(("team__gt", ""), ("user__isnull", True)),
+                    _connector="OR",
+                ),
+                name="check_template_access_either_user_or_team",
+                violation_error_message="Either user or team must be set, not both.",
+            ),
         ),
     ]

src/backend/core/migrations/0002_create_pg_trgm_extension.py

@@ -1,9 +1,9 @@
 from django.db import migrations
 
-class Migration(migrations.Migration):
 
+class Migration(migrations.Migration):
     dependencies = [
-        ('core', '0001_initial'),
+        ("core", "0001_initial"),
     ]
 
     operations = [

src/backend/core/migrations/0003_document_link_reach_document_link_role_and_more.py

@@ -1,52 +1,114 @@
 # Generated by Django 5.1 on 2024-09-08 16:55
 
-import django.db.models.deletion
 import uuid
+
+import django.db.models.deletion
 from django.conf import settings
 from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
-        ('core', '0002_create_pg_trgm_extension'),
+        ("core", "0002_create_pg_trgm_extension"),
     ]
 
     operations = [
         migrations.AddField(
-            model_name='document',
-            name='link_reach',
-            field=models.CharField(choices=[('restricted', 'Restricted'), ('authenticated', 'Authenticated'), ('public', 'Public')], default='authenticated', max_length=20),
+            model_name="document",
+            name="link_reach",
+            field=models.CharField(
+                choices=[
+                    ("restricted", "Restricted"),
+                    ("authenticated", "Authenticated"),
+                    ("public", "Public"),
+                ],
+                default="authenticated",
+                max_length=20,
+            ),
         ),
         migrations.AddField(
-            model_name='document',
-            name='link_role',
-            field=models.CharField(choices=[('reader', 'Reader'), ('editor', 'Editor')], default='reader', max_length=20),
+            model_name="document",
+            name="link_role",
+            field=models.CharField(
+                choices=[("reader", "Reader"), ("editor", "Editor")],
+                default="reader",
+                max_length=20,
+            ),
         ),
         migrations.AlterField(
-            model_name='document',
-            name='is_public',
+            model_name="document",
+            name="is_public",
             field=models.BooleanField(null=True),
         ),
         migrations.AlterField(
-            model_name='user',
-            name='language',
-            field=models.CharField(choices="(('en-us', 'English'), ('fr-fr', 'French'))", default='en-us', help_text='The language in which the user wants to see the interface.', max_length=10, verbose_name='language'),
+            model_name="user",
+            name="language",
+            field=models.CharField(
+                choices="(('en-us', 'English'), ('fr-fr', 'French'))",
+                default="en-us",
+                help_text="The language in which the user wants to see the interface.",
+                max_length=10,
+                verbose_name="language",
+            ),
         ),
         migrations.CreateModel(
-            name='LinkTrace',
+            name="LinkTrace",
             fields=[
-                ('id', models.UUIDField(default=uuid.uuid4, editable=False, help_text='primary key for the record as UUID', primary_key=True, serialize=False, verbose_name='id')),
-                ('created_at', models.DateTimeField(auto_now_add=True, help_text='date and time at which a record was created', verbose_name='created on')),
-                ('updated_at', models.DateTimeField(auto_now=True, help_text='date and time at which a record was last updated', verbose_name='updated on')),
-                ('document', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='link_traces', to='core.document')),
-                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='link_traces', to=settings.AUTH_USER_MODEL)),
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="primary key for the record as UUID",
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="id",
+                    ),
+                ),
+                (
+                    "created_at",
+                    models.DateTimeField(
+                        auto_now_add=True,
+                        help_text="date and time at which a record was created",
+                        verbose_name="created on",
+                    ),
+                ),
+                (
+                    "updated_at",
+                    models.DateTimeField(
+                        auto_now=True,
+                        help_text="date and time at which a record was last updated",
+                        verbose_name="updated on",
+                    ),
+                ),
+                (
+                    "document",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="link_traces",
+                        to="core.document",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="link_traces",
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
             ],
             options={
-                'verbose_name': 'Document/user link trace',
-                'verbose_name_plural': 'Document/user link traces',
-                'db_table': 'impress_link_trace',
-                'constraints': [models.UniqueConstraint(fields=('user', 'document'), name='unique_link_trace_document_user', violation_error_message='A link trace already exists for this document/user.')],
+                "verbose_name": "Document/user link trace",
+                "verbose_name_plural": "Document/user link traces",
+                "db_table": "impress_link_trace",
+                "constraints": [
+                    models.UniqueConstraint(
+                        fields=("user", "document"),
+                        name="unique_link_trace_document_user",
+                        violation_error_message="A link trace already exists for this document/user.",
+                    )
+                ],
             },
         ),
     ]

src/backend/core/migrations/0004_migrate_is_public_to_link_reach.py

@@ -1,13 +1,14 @@
 # Generated by Django 5.1 on 2024-09-08 17:04
 from django.db import migrations
 
+
 def migrate_is_public_to_link_reach(apps, schema_editor):
     """
     Forward migration: Migrate 'is_public' to 'link_reach'.
     If is_public == True, set link_reach to 'public'
     """
-    Document = apps.get_model('core', 'Document')
-    Document.objects.filter(is_public=True).update(link_reach='public')
+    Document = apps.get_model("core", "Document")
+    Document.objects.filter(is_public=True).update(link_reach="public")
 
 
 def reverse_migrate_link_reach_to_is_public(apps, schema_editor):
@@ -16,20 +17,20 @@ def reverse_migrate_link_reach_to_is_public(apps, schema_editor):
     - If link_reach == 'public', set is_public to True
     - Else set is_public to False
     """
-    Document = apps.get_model('core', 'Document')
-    Document.objects.filter(link_reach='public').update(is_public=True)
-    Document.objects.filter(link_reach__in=['restricted', "authenticated"]).update(is_public=False)
+    Document = apps.get_model("core", "Document")
+    Document.objects.filter(link_reach="public").update(is_public=True)
+    Document.objects.filter(link_reach__in=["restricted", "authenticated"]).update(
+        is_public=False
+    )
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
-        ('core', '0003_document_link_reach_document_link_role_and_more'),
+        ("core", "0003_document_link_reach_document_link_role_and_more"),
     ]
 
     operations = [
         migrations.RunPython(
-            migrate_is_public_to_link_reach, 
-            reverse_migrate_link_reach_to_is_public
+            migrate_is_public_to_link_reach, reverse_migrate_link_reach_to_is_public
         ),
     ]

src/backend/core/migrations/0005_remove_document_is_public_alter_document_link_reach_and_more.py

@@ -4,15 +4,16 @@ from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
-        ('core', '0004_migrate_is_public_to_link_reach'),
+        ("core", "0004_migrate_is_public_to_link_reach"),
     ]
 
     operations = [
         migrations.AlterField(
-            model_name='document',
-            name='title',
-            field=models.CharField(blank=True, max_length=255, null=True, verbose_name='title'),
+            model_name="document",
+            name="title",
+            field=models.CharField(
+                blank=True, max_length=255, null=True, verbose_name="title"
+            ),
         ),
     ]

src/backend/core/migrations/0006_add_user_full_name_and_short_name.py

@@ -4,25 +4,34 @@ from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
-        ('core', '0005_remove_document_is_public_alter_document_link_reach_and_more'),
+        ("core", "0005_remove_document_is_public_alter_document_link_reach_and_more"),
     ]
 
     operations = [
         migrations.AddField(
-            model_name='user',
-            name='full_name',
-            field=models.CharField(blank=True, max_length=100, null=True, verbose_name='full name'),
+            model_name="user",
+            name="full_name",
+            field=models.CharField(
+                blank=True, max_length=100, null=True, verbose_name="full name"
+            ),
         ),
         migrations.AddField(
-            model_name='user',
-            name='short_name',
-            field=models.CharField(blank=True, max_length=20, null=True, verbose_name='short name'),
+            model_name="user",
+            name="short_name",
+            field=models.CharField(
+                blank=True, max_length=20, null=True, verbose_name="short name"
+            ),
         ),
         migrations.AlterField(
-            model_name='user',
-            name='language',
-            field=models.CharField(choices="(('en-us', 'English'), ('fr-fr', 'French'))", default='en-us', help_text='The language in which the user wants to see the interface.', max_length=10, verbose_name='language'),
+            model_name="user",
+            name="language",
+            field=models.CharField(
+                choices="(('en-us', 'English'), ('fr-fr', 'French'))",
+                default="en-us",
+                help_text="The language in which the user wants to see the interface.",
+                max_length=10,
+                verbose_name="language",
+            ),
         ),
     ]

src/backend/core/migrations/0007_fix_users_duplicate.py

@@ -117,10 +117,10 @@ BEGIN
 END $$;
 """
 
-class Migration(migrations.Migration):
 
+class Migration(migrations.Migration):
     dependencies = [
-        ('core', '0006_add_user_full_name_and_short_name'),
+        ("core", "0006_add_user_full_name_and_short_name"),
     ]
 
     operations = [

src/backend/core/migrations/0008_alter_document_link_reach.py

@@ -4,15 +4,22 @@ from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
-        ('core', '0007_fix_users_duplicate'),
+        ("core", "0007_fix_users_duplicate"),
     ]
 
     operations = [
         migrations.AlterField(
-            model_name='document',
-            name='link_reach',
-            field=models.CharField(choices=[('restricted', 'Restricted'), ('authenticated', 'Authenticated'), ('public', 'Public')], default='restricted', max_length=20),
+            model_name="document",
+            name="link_reach",
+            field=models.CharField(
+                choices=[
+                    ("restricted", "Restricted"),
+                    ("authenticated", "Authenticated"),
+                    ("public", "Public"),
+                ],
+                default="restricted",
+                max_length=20,
+            ),
         ),
     ]

src/backend/core/migrations/0009_add_document_favorite.py

@@ -1,37 +1,87 @@
 # Generated by Django 5.1.2 on 2024-11-08 07:59
 
-import django.db.models.deletion
 import uuid
+
+import django.db.models.deletion
 from django.conf import settings
 from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
-        ('core', '0008_alter_document_link_reach'),
+        ("core", "0008_alter_document_link_reach"),
     ]
 
     operations = [
         migrations.AlterField(
-            model_name='user',
-            name='language',
-            field=models.CharField(choices="(('en-us', 'English'), ('fr-fr', 'French'), ('de-de', 'German'))", default='en-us', help_text='The language in which the user wants to see the interface.', max_length=10, verbose_name='language'),
+            model_name="user",
+            name="language",
+            field=models.CharField(
+                choices="(('en-us', 'English'), ('fr-fr', 'French'), ('de-de', 'German'))",
+                default="en-us",
+                help_text="The language in which the user wants to see the interface.",
+                max_length=10,
+                verbose_name="language",
+            ),
         ),
         migrations.CreateModel(
-            name='DocumentFavorite',
+            name="DocumentFavorite",
             fields=[
-                ('id', models.UUIDField(default=uuid.uuid4, editable=False, help_text='primary key for the record as UUID', primary_key=True, serialize=False, verbose_name='id')),
-                ('created_at', models.DateTimeField(auto_now_add=True, help_text='date and time at which a record was created', verbose_name='created on')),
-                ('updated_at', models.DateTimeField(auto_now=True, help_text='date and time at which a record was last updated', verbose_name='updated on')),
-                ('document', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='favorited_by_users', to='core.document')),
-                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='favorite_documents', to=settings.AUTH_USER_MODEL)),
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="primary key for the record as UUID",
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="id",
+                    ),
+                ),
+                (
+                    "created_at",
+                    models.DateTimeField(
+                        auto_now_add=True,
+                        help_text="date and time at which a record was created",
+                        verbose_name="created on",
+                    ),
+                ),
+                (
+                    "updated_at",
+                    models.DateTimeField(
+                        auto_now=True,
+                        help_text="date and time at which a record was last updated",
+                        verbose_name="updated on",
+                    ),
+                ),
+                (
+                    "document",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="favorited_by_users",
+                        to="core.document",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="favorite_documents",
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
             ],
             options={
-                'verbose_name': 'Document favorite',
-                'verbose_name_plural': 'Document favorites',
-                'db_table': 'impress_document_favorite',
-                'constraints': [models.UniqueConstraint(fields=('user', 'document'), name='unique_document_favorite_user', violation_error_message='This document is already targeted by a favorite relation instance for the same user.')],
+                "verbose_name": "Document favorite",
+                "verbose_name_plural": "Document favorites",
+                "db_table": "impress_document_favorite",
+                "constraints": [
+                    models.UniqueConstraint(
+                        fields=("user", "document"),
+                        name="unique_document_favorite_user",
+                        violation_error_message="This document is already targeted by a favorite relation instance for the same user.",
+                    )
+                ],
             },
         ),
     ]

src/backend/core/migrations/0010_add_field_creator_to_document.py

@@ -7,25 +7,48 @@ from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
-        ('core', '0009_add_document_favorite'),
+        ("core", "0009_add_document_favorite"),
     ]
 
     operations = [
         migrations.AddField(
-            model_name='document',
-            name='creator',
-            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.RESTRICT, related_name='documents_created', to=settings.AUTH_USER_MODEL),
+            model_name="document",
+            name="creator",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.RESTRICT,
+                related_name="documents_created",
+                to=settings.AUTH_USER_MODEL,
+            ),
         ),
         migrations.AlterField(
-            model_name='user',
-            name='language',
-            field=models.CharField(choices="(('en-us', 'English'), ('fr-fr', 'French'), ('de-de', 'German'))", default='en-us', help_text='The language in which the user wants to see the interface.', max_length=10, verbose_name='language'),
+            model_name="user",
+            name="language",
+            field=models.CharField(
+                choices="(('en-us', 'English'), ('fr-fr', 'French'), ('de-de', 'German'))",
+                default="en-us",
+                help_text="The language in which the user wants to see the interface.",
+                max_length=10,
+                verbose_name="language",
+            ),
         ),
         migrations.AlterField(
-            model_name='user',
-            name='sub',
-            field=models.CharField(blank=True, help_text='Required. 255 characters or fewer. Letters, numbers, and @/./+/-/_/: characters only.', max_length=255, null=True, unique=True, validators=[django.core.validators.RegexValidator(message='Enter a valid sub. This value may contain only letters, numbers, and @/./+/-/_/: characters.', regex='^[\\w.@+-:]+\\Z')], verbose_name='sub'),
+            model_name="user",
+            name="sub",
+            field=models.CharField(
+                blank=True,
+                help_text="Required. 255 characters or fewer. Letters, numbers, and @/./+/-/_/: characters only.",
+                max_length=255,
+                null=True,
+                unique=True,
+                validators=[
+                    django.core.validators.RegexValidator(
+                        message="Enter a valid sub. This value may contain only letters, numbers, and @/./+/-/_/: characters.",
+                        regex="^[\\w.@+-:]+\\Z",
+                    )
+                ],
+                verbose_name="sub",
+            ),
         ),
     ]

src/backend/core/migrations/0011_populate_creator_field_and_make_it_required.py

@@ -3,7 +3,7 @@
 import django.db.models.deletion
 from django.conf import settings
 from django.db import migrations
-from django.db.models import F, ForeignKey, Subquery, OuterRef, Q
+from django.db.models import F, ForeignKey, OuterRef, Q, Subquery
 
 
 def set_creator_from_document_access(apps, schema_editor):
@@ -25,28 +25,37 @@ def set_creator_from_document_access(apps, schema_editor):
     DocumentAccess = apps.get_model("core", "DocumentAccess")
 
     # Update `creator` using the "owner" role
-    owner_subquery = DocumentAccess.objects.filter(
-        document=OuterRef('pk'),
-        user__isnull=False,
-        role='owner',
-    ).order_by('created_at').values('user_id')[:1]
+    owner_subquery = (
+        DocumentAccess.objects.filter(
+            document=OuterRef("pk"),
+            user__isnull=False,
+            role="owner",
+        )
+        .order_by("created_at")
+        .values("user_id")[:1]
+    )
 
-    Document.objects.filter(
-        creator__isnull=True
-    ).update(creator=Subquery(owner_subquery))
+    Document.objects.filter(creator__isnull=True).update(
+        creator=Subquery(owner_subquery)
+    )
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
-        ('core', '0010_add_field_creator_to_document'),
+        ("core", "0010_add_field_creator_to_document"),
     ]
 
     operations = [
-        migrations.RunPython(set_creator_from_document_access, reverse_code=migrations.RunPython.noop),
+        migrations.RunPython(
+            set_creator_from_document_access, reverse_code=migrations.RunPython.noop
+        ),
         migrations.AlterField(
-            model_name='document',
-            name='creator',
-            field=ForeignKey(on_delete=django.db.models.deletion.RESTRICT, related_name='documents_created', to=settings.AUTH_USER_MODEL),
+            model_name="document",
+            name="creator",
+            field=ForeignKey(
+                on_delete=django.db.models.deletion.RESTRICT,
+                related_name="documents_created",
+                to=settings.AUTH_USER_MODEL,
+            ),
         ),
     ]

src/backend/core/migrations/0012_make_document_creator_and_invitation_issuer_optional.py

@@ -6,25 +6,42 @@ from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
-        ('core', '0011_populate_creator_field_and_make_it_required'),
+        ("core", "0011_populate_creator_field_and_make_it_required"),
     ]
 
     operations = [
         migrations.AlterField(
-            model_name='document',
-            name='creator',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.RESTRICT, related_name='documents_created', to=settings.AUTH_USER_MODEL),
+            model_name="document",
+            name="creator",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.RESTRICT,
+                related_name="documents_created",
+                to=settings.AUTH_USER_MODEL,
+            ),
         ),
         migrations.AlterField(
-            model_name='invitation',
-            name='issuer',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='invitations', to=settings.AUTH_USER_MODEL),
+            model_name="invitation",
+            name="issuer",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="invitations",
+                to=settings.AUTH_USER_MODEL,
+            ),
         ),
         migrations.AlterField(
-            model_name='user',
-            name='language',
-            field=models.CharField(choices="(('en-us', 'English'), ('fr-fr', 'French'), ('de-de', 'German'))", default='en-us', help_text='The language in which the user wants to see the interface.', max_length=10, verbose_name='language'),
+            model_name="user",
+            name="language",
+            field=models.CharField(
+                choices="(('en-us', 'English'), ('fr-fr', 'French'), ('de-de', 'German'))",
+                default="en-us",
+                help_text="The language in which the user wants to see the interface.",
+                max_length=10,
+                verbose_name="language",
+            ),
         ),
     ]

src/backend/core/migrations/0013_activate_fuzzystrmatch_extension.py

@@ -0,0 +1,16 @@
+# Generated by Django 5.1.4 on 2025-01-25 08:38
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0012_make_document_creator_and_invitation_issuer_optional"),
+    ]
+
+    operations = [
+        migrations.RunSQL(
+            "CREATE EXTENSION IF NOT EXISTS fuzzystrmatch;",
+            reverse_sql="DROP EXTENSION IF EXISTS fuzzystrmatch;",
+        ),
+    ]

src/backend/core/migrations/0014_add_tree_structure_to_documents.py

@@ -0,0 +1,32 @@
+# Generated by Django 5.1.2 on 2024-12-07 09:43
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0013_activate_fuzzystrmatch_extension"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="document",
+            name="depth",
+            field=models.PositiveIntegerField(default=0),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name="document",
+            name="numchild",
+            field=models.PositiveIntegerField(default=0),
+        ),
+        migrations.AddField(
+            model_name="document",
+            name="path",
+            # Allow null values pending the next datamigration to populate the field
+            field=models.CharField(
+                db_collation="C", max_length=252, null=True, unique=True
+            ),
+            preserve_default=False,
+        ),
+    ]

src/backend/core/migrations/0015_set_path_on_existing_documents.py

@@ -0,0 +1,51 @@
+# Generated by Django 5.1.2 on 2024-12-07 10:33
+
+from django.db import migrations, models
+
+from treebeard.numconv import NumConv
+
+ALPHABET = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+STEPLEN = 7
+
+
+def set_path_on_existing_documents(apps, schema_editor):
+    """
+    Updates the `path` and `depth` fields for all existing Document records
+    to ensure valid materialized paths.
+
+    This function assigns a unique `path` to each Document as a root node
+
+    Note: After running this migration, we quickly modify the schema to make
+    the `path` field required as it should.
+    """
+    Document = apps.get_model("core", "Document")
+
+    # Iterate over all existing documents and make them root nodes
+    documents = Document.objects.order_by("created_at").values_list("id", flat=True)
+    numconv = NumConv(len(ALPHABET), ALPHABET)
+
+    updates = []
+    for i, pk in enumerate(documents):
+        key = numconv.int2str(i)
+        path = "{0}{1}".format(ALPHABET[0] * (STEPLEN - len(key)), key)
+        updates.append(Document(pk=pk, path=path, depth=1))
+
+    # Bulk update using the prepared updates list
+    Document.objects.bulk_update(updates, ["depth", "path"])
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0014_add_tree_structure_to_documents"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            set_path_on_existing_documents, reverse_code=migrations.RunPython.noop
+        ),
+        migrations.AlterField(
+            model_name="document",
+            name="path",
+            field=models.CharField(db_collation="C", max_length=252, unique=True),
+        ),
+    ]

src/backend/core/migrations/0016_add_document_excerpt.py

@@ -0,0 +1,30 @@
+# Generated by Django 5.1.4 on 2024-12-18 08:56
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0015_set_path_on_existing_documents"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="document",
+            name="excerpt",
+            field=models.TextField(
+                blank=True, max_length=300, null=True, verbose_name="excerpt"
+            ),
+        ),
+        migrations.AlterField(
+            model_name="user",
+            name="language",
+            field=models.CharField(
+                choices="(('en-us', 'English'), ('fr-fr', 'French'), ('de-de', 'German'))",
+                default="en-us",
+                help_text="The language in which the user wants to see the interface.",
+                max_length=10,
+                verbose_name="language",
+            ),
+        ),
+    ]

src/backend/core/migrations/0017_add_fields_for_soft_delete.py

@@ -0,0 +1,52 @@
+# Generated by Django 5.1.4 on 2025-01-12 14:27
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0016_add_document_excerpt"),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name="document",
+            options={
+                "ordering": ("path",),
+                "verbose_name": "Document",
+                "verbose_name_plural": "Documents",
+            },
+        ),
+        migrations.AddField(
+            model_name="document",
+            name="ancestors_deleted_at",
+            field=models.DateTimeField(blank=True, null=True),
+        ),
+        migrations.AddField(
+            model_name="document",
+            name="deleted_at",
+            field=models.DateTimeField(blank=True, null=True),
+        ),
+        migrations.AlterField(
+            model_name="user",
+            name="language",
+            field=models.CharField(
+                choices="(('en-us', 'English'), ('fr-fr', 'French'), ('de-de', 'German'))",
+                default="en-us",
+                help_text="The language in which the user wants to see the interface.",
+                max_length=10,
+                verbose_name="language",
+            ),
+        ),
+        migrations.AddConstraint(
+            model_name="document",
+            constraint=models.CheckConstraint(
+                condition=models.Q(
+                    ("deleted_at__isnull", True),
+                    ("deleted_at", models.F("ancestors_deleted_at")),
+                    _connector="OR",
+                ),
+                name="check_deleted_at_matches_ancestors_deleted_at_when_set",
+            ),
+        ),
+    ]

src/backend/core/migrations/0018_update_blank_title.py

@@ -0,0 +1,24 @@
+from django.db import migrations
+
+
+def update_titles_to_null(apps, schema_editor):
+    """
+    If the titles are "Untitled document" or "Unbenanntes Dokument" or "Document sans titre"
+    we set them to Null
+    """
+    Document = apps.get_model("core", "Document")
+    Document.objects.filter(
+        title__in=["Untitled document", "Unbenanntes Dokument", "Document sans titre"]
+    ).update(title=None)
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0017_add_fields_for_soft_delete"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            update_titles_to_null, reverse_code=migrations.RunPython.noop
+        ),
+    ]

src/backend/core/migrations/0019_alter_user_language_default_to_null.py

@@ -0,0 +1,36 @@
+# Generated by Django 5.1.5 on 2025-03-04 12:23
+from django.db import migrations, models
+
+import core.models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0018_update_blank_title"),
+    ]
+
+    operations = [
+        migrations.AlterModelManagers(
+            name="user",
+            managers=[
+                ("objects", core.models.UserManager()),
+            ],
+        ),
+        migrations.AlterField(
+            model_name="user",
+            name="language",
+            field=models.CharField(
+                blank=True,
+                choices=[
+                    ("en-us", "English"),
+                    ("fr-fr", "Français"),
+                    ("de-de", "Deutsch"),
+                ],
+                default=None,
+                help_text="The language in which the user wants to see the interface.",
+                max_length=10,
+                null=True,
+                verbose_name="language",
+            ),
+        ),
+    ]

src/backend/core/migrations/0020_remove_document_is_public_and_more.py

@@ -0,0 +1,17 @@
+# Generated by Django 5.1.7 on 2025-03-14 14:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0019_alter_user_language_default_to_null"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="document",
+            name="has_deleted_children",
+            field=models.BooleanField(default=False),
+        ),
+    ]

src/backend/core/models.py

@@ -5,56 +5,48 @@ Declare and configure the models for the impress core application
 
 import hashlib
 import smtplib
-import tempfile
-import textwrap
 import uuid
+from collections import defaultdict
 from datetime import timedelta
-from io import BytesIO
 from logging import getLogger
 
 from django.conf import settings
 from django.contrib.auth import models as auth_models
 from django.contrib.auth.base_user import AbstractBaseUser
 from django.contrib.sites.models import Site
-from django.core import exceptions, mail, validators
+from django.core import mail, validators
+from django.core.cache import cache
 from django.core.files.base import ContentFile
 from django.core.files.storage import default_storage
 from django.core.mail import send_mail
-from django.db import models
-from django.http import FileResponse
-from django.template.base import Template as DjangoTemplate
-from django.template.context import Context
+from django.db import models, transaction
+from django.db.models.functions import Left, Length
 from django.template.loader import render_to_string
-from django.utils import html, timezone
+from django.utils import timezone
 from django.utils.functional import cached_property, lazy
 from django.utils.translation import get_language, override
 from django.utils.translation import gettext_lazy as _
 
-import frontmatter
-import markdown
-import pypandoc
-import weasyprint
 from botocore.exceptions import ClientError
+from rest_framework.exceptions import ValidationError
 from timezone_field import TimeZoneField
+from treebeard.mp_tree import MP_Node, MP_NodeManager, MP_NodeQuerySet
 
 logger = getLogger(__name__)
 
 
-def get_resource_roles(resource, user):
-    """Compute the roles a user has on a resource."""
-    if not user.is_authenticated:
-        return []
+def get_trashbin_cutoff():
+    """
+    Calculate the cutoff datetime for soft-deleted items based on the retention policy.
 
-    try:
-        roles = resource.user_roles or []
-    except AttributeError:
-        try:
-            roles = resource.accesses.filter(
-                models.Q(user=user) | models.Q(team__in=user.teams),
-            ).values_list("role", flat=True)
-        except (models.ObjectDoesNotExist, IndexError):
-            roles = []
-    return roles
+    The function returns the current datetime minus the number of days specified in
+    the TRASHBIN_CUTOFF_DAYS setting, indicating the oldest date for items that can
+    remain in the trash bin.
+
+    Returns:
+        datetime: The cutoff datetime for soft-deleted items.
+    """
+    return timezone.now() - timedelta(days=settings.TRASHBIN_CUTOFF_DAYS)
 
 
 class LinkRoleChoices(models.TextChoices):
@@ -89,6 +81,55 @@ class LinkReachChoices(models.TextChoices):
     )  # Any authenticated user can access the document
     PUBLIC = "public", _("Public")  # Even anonymous users can access the document
 
+    @classmethod
+    def get_select_options(cls, ancestors_links):
+        """
+        Determines the valid select options for link reach and link role depending on the
+        list of ancestors' link reach/role.
+
+        Args:
+            ancestors_links: List of dictionaries, each with 'link_reach' and 'link_role' keys
+                             representing the reach and role of ancestors links.
+
+        Returns:
+            Dictionary mapping possible reach levels to their corresponding possible roles.
+        """
+        # If no ancestors, return all options
+        if not ancestors_links:
+            return dict.fromkeys(cls.values, LinkRoleChoices.values)
+
+        # Initialize result with all possible reaches and role options as sets
+        result = {reach: set(LinkRoleChoices.values) for reach in cls.values}
+
+        # Group roles by reach level
+        reach_roles = defaultdict(set)
+        for link in ancestors_links:
+            reach_roles[link["link_reach"]].add(link["link_role"])
+
+        # Apply constraints based on ancestor links
+        if LinkRoleChoices.EDITOR in reach_roles[cls.RESTRICTED]:
+            result[cls.RESTRICTED].discard(LinkRoleChoices.READER)
+
+        if LinkRoleChoices.EDITOR in reach_roles[cls.AUTHENTICATED]:
+            result[cls.AUTHENTICATED].discard(LinkRoleChoices.READER)
+            result.pop(cls.RESTRICTED, None)
+        elif LinkRoleChoices.READER in reach_roles[cls.AUTHENTICATED]:
+            result[cls.RESTRICTED].discard(LinkRoleChoices.READER)
+
+        if LinkRoleChoices.EDITOR in reach_roles[cls.PUBLIC]:
+            result[cls.PUBLIC].discard(LinkRoleChoices.READER)
+            result.pop(cls.AUTHENTICATED, None)
+            result.pop(cls.RESTRICTED, None)
+        elif LinkRoleChoices.READER in reach_roles[cls.PUBLIC]:
+            result[cls.AUTHENTICATED].discard(LinkRoleChoices.READER)
+            result.get(cls.RESTRICTED, set()).discard(LinkRoleChoices.READER)
+
+        # Convert roles sets to lists while maintaining the order from LinkRoleChoices
+        for reach, roles in result.items():
+            result[reach] = [role for role in LinkRoleChoices.values if role in roles]
+
+        return result
+
 
 class DuplicateEmailError(Exception):
     """Raised when an email is already associated with a pre-existing user."""
@@ -203,9 +244,11 @@ class User(AbstractBaseUser, BaseModel, auth_models.PermissionsMixin):
     language = models.CharField(
         max_length=10,
         choices=lazy(lambda: settings.LANGUAGES, tuple)(),
-        default=settings.LANGUAGE_CODE,
+        default=None,
         verbose_name=_("language"),
         help_text=_("The language in which the user wants to see the interface."),
+        null=True,
+        blank=True,
     )
     timezone = TimeZoneField(
         choices_display="WITH_GMT_OFFSET",
@@ -376,10 +419,56 @@ class BaseAccess(BaseModel):
         }
 
 
-class Document(BaseModel):
+class DocumentQuerySet(MP_NodeQuerySet):
+    """
+    Custom queryset for the Document model, providing additional methods
+    to filter documents based on user permissions.
+    """
+
+    def readable_per_se(self, user):
+        """
+        Filters the queryset to return documents that the given user has
+        permission to read.
+        :param user: The user for whom readable documents are to be fetched.
+        :return: A queryset of documents readable by the user.
+        """
+        if user.is_authenticated:
+            return self.filter(
+                models.Q(accesses__user=user)
+                | models.Q(accesses__team__in=user.teams)
+                | ~models.Q(link_reach=LinkReachChoices.RESTRICTED)
+            )
+
+        return self.filter(link_reach=LinkReachChoices.PUBLIC)
+
+
+class DocumentManager(MP_NodeManager):
+    """
+    Custom manager for the Document model, enabling the use of the custom
+    queryset methods directly from the model manager.
+    """
+
+    def get_queryset(self):
+        """
+        Overrides the default get_queryset method to return a custom queryset.
+        :return: An instance of DocumentQuerySet.
+        """
+        return DocumentQuerySet(self.model, using=self._db)
+
+    def readable_per_se(self, user):
+        """
+        Filters documents based on user permissions using the custom queryset.
+        :param user: The user for whom readable documents are to be fetched.
+        :return: A queryset of documents readable by the user.
+        """
+        return self.get_queryset().readable_per_se(user)
+
+
+class Document(MP_Node, BaseModel):
     """Pad document carrying the content."""
 
     title = models.CharField(_("title"), max_length=255, null=True, blank=True)
+    excerpt = models.TextField(_("excerpt"), max_length=300, null=True, blank=True)
     link_reach = models.CharField(
         max_length=20,
         choices=LinkReachChoices.choices,
@@ -395,14 +484,35 @@ class Document(BaseModel):
         blank=True,
         null=True,
     )
+    deleted_at = models.DateTimeField(null=True, blank=True)
+    ancestors_deleted_at = models.DateTimeField(null=True, blank=True)
+    has_deleted_children = models.BooleanField(default=False)
 
     _content = None
 
+    # Tree structure
+    alphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+    steplen = 7  # nb siblings max: 3,521,614,606,208
+    node_order_by = []  # Manual ordering
+
+    path = models.CharField(max_length=7 * 36, unique=True, db_collation="C")
+
+    objects = DocumentManager()
+
     class Meta:
         db_table = "impress_document"
-        ordering = ("title",)
+        ordering = ("path",)
         verbose_name = _("Document")
         verbose_name_plural = _("Documents")
+        constraints = [
+            models.CheckConstraint(
+                check=(
+                    models.Q(deleted_at__isnull=True)
+                    | models.Q(deleted_at=models.F("ancestors_deleted_at"))
+                ),
+                name="check_deleted_at_matches_ancestors_deleted_at_when_set",
+            ),
+        ]
 
     def __str__(self):
         return str(self.title) if self.title else str(_("Untitled Document"))
@@ -437,6 +547,12 @@ class Document(BaseModel):
                 content_file = ContentFile(bytes_content)
                 default_storage.save(file_key, content_file)
 
+    def is_leaf(self):
+        """
+        :returns: True if the node is has no children
+        """
+        return not self.has_deleted_children and self.numchild == 0
+
     @property
     def key_base(self):
         """Key base of the location where the document is stored in object storage."""
@@ -473,9 +589,13 @@ class Document(BaseModel):
 
     def get_content_response(self, version_id=""):
         """Get the content in a specific version of the document"""
-        return default_storage.connection.meta.client.get_object(
-            Bucket=default_storage.bucket_name, Key=self.file_key, VersionId=version_id
-        )
+        params = {
+            "Bucket": default_storage.bucket_name,
+            "Key": self.file_key,
+        }
+        if version_id:
+            params["VersionId"] = version_id
+        return default_storage.connection.meta.client.get_object(**params)
 
     def get_versions_slice(self, from_version_id="", min_datetime=None, page_size=None):
         """Get document versions from object storage with pagination and starting conditions"""
@@ -541,48 +661,166 @@ class Document(BaseModel):
             Bucket=default_storage.bucket_name, Key=self.file_key, VersionId=version_id
         )
 
-    def get_abilities(self, user):
+    def get_nb_accesses_cache_key(self):
+        """Generate a unique cache key for each document."""
+        return f"document_{self.id!s}_nb_accesses"
+
+    def get_nb_accesses(self):
+        """
+        Calculate the number of accesses:
+        - directly attached to the document
+        - attached to any of the document's ancestors
+        """
+        cache_key = self.get_nb_accesses_cache_key()
+        nb_accesses = cache.get(cache_key)
+
+        if nb_accesses is None:
+            nb_accesses = (
+                DocumentAccess.objects.filter(document=self).count(),
+                DocumentAccess.objects.filter(
+                    document__path=Left(
+                        models.Value(self.path), Length("document__path")
+                    ),
+                    document__ancestors_deleted_at__isnull=True,
+                ).count(),
+            )
+            cache.set(cache_key, nb_accesses)
+
+        return nb_accesses
+
+    @property
+    def nb_accesses_direct(self):
+        """Returns the number of accesses related to the document or one of its ancestors."""
+        return self.get_nb_accesses()[0]
+
+    @property
+    def nb_accesses_ancestors(self):
+        """Returns the number of accesses related to the document or one of its ancestors."""
+        return self.get_nb_accesses()[1]
+
+    def invalidate_nb_accesses_cache(self):
+        """
+        Invalidate the cache for number of accesses, including on affected descendants.
+        Args:
+            path: can optionally be passed as argument (useful when invalidating cache for a
+                document we just deleted)
+        """
+
+        for document in Document.objects.filter(path__startswith=self.path).only("id"):
+            cache_key = document.get_nb_accesses_cache_key()
+            cache.delete(cache_key)
+
+    def get_roles(self, user):
+        """Return the roles a user has on a document."""
+        if not user.is_authenticated:
+            return []
+
+        try:
+            roles = self.user_roles or []
+        except AttributeError:
+            try:
+                roles = DocumentAccess.objects.filter(
+                    models.Q(user=user) | models.Q(team__in=user.teams),
+                    document__path=Left(
+                        models.Value(self.path), Length("document__path")
+                    ),
+                ).values_list("role", flat=True)
+            except (models.ObjectDoesNotExist, IndexError):
+                roles = []
+        return roles
+
+    def get_links_definitions(self, ancestors_links):
+        """Get links reach/role definitions for the current document and its ancestors."""
+
+        links_definitions = defaultdict(set)
+        links_definitions[self.link_reach].add(self.link_role)
+
+        # Merge ancestor link definitions
+        for ancestor in ancestors_links:
+            links_definitions[ancestor["link_reach"]].add(ancestor["link_role"])
+
+        return dict(links_definitions)  # Convert defaultdict back to a normal dict
+
+    def get_abilities(self, user, ancestors_links=None):
         """
         Compute and return abilities for a given user on the document.
         """
-        roles = set(get_resource_roles(self, user))
+        if self.depth <= 1 or getattr(self, "is_highest_ancestor_for_user", False):
+            ancestors_links = []
+        elif ancestors_links is None:
+            ancestors_links = self.get_ancestors().values("link_reach", "link_role")
 
-        # Compute version roles before adding link roles because we don't
+        roles = set(
+            self.get_roles(user)
+        )  # at this point only roles based on specific access
+
+        # Characteristics that are based only on specific access
+        is_owner = RoleChoices.OWNER in roles
+        is_deleted = self.ancestors_deleted_at and not is_owner
+        is_owner_or_admin = (is_owner or RoleChoices.ADMIN in roles) and not is_deleted
+
+        # Compute access roles before adding link roles because we don't
         # want anonymous users to access versions (we wouldn't know from
         # which date to allow them anyway)
         # Anonymous users should also not see document accesses
-        has_role = bool(roles)
+        has_access_role = bool(roles) and not is_deleted
+        can_update_from_access = (
+            is_owner_or_admin or RoleChoices.EDITOR in roles
+        ) and not is_deleted
 
-        # Add role provided by the document link
-        if self.link_reach == LinkReachChoices.PUBLIC or (
-            self.link_reach == LinkReachChoices.AUTHENTICATED and user.is_authenticated
-        ):
-            roles.add(self.link_role)
-
-        is_owner_or_admin = bool(
-            roles.intersection({RoleChoices.OWNER, RoleChoices.ADMIN})
+        # Add roles provided by the document link, taking into account its ancestors
+        links_definitions = self.get_links_definitions(ancestors_links)
+        public_roles = links_definitions.get(LinkReachChoices.PUBLIC, set())
+        authenticated_roles = (
+            links_definitions.get(LinkReachChoices.AUTHENTICATED, set())
+            if user.is_authenticated
+            else set()
+        )
+        roles = roles | public_roles | authenticated_roles
+
+        can_get = bool(roles) and not is_deleted
+        can_update = (
+            is_owner_or_admin or RoleChoices.EDITOR in roles
+        ) and not is_deleted
+
+        ai_allow_reach_from = settings.AI_ALLOW_REACH_FROM
+        ai_access = any(
+            [
+                ai_allow_reach_from == LinkReachChoices.PUBLIC and can_update,
+                ai_allow_reach_from == LinkReachChoices.AUTHENTICATED
+                and user.is_authenticated
+                and can_update,
+                ai_allow_reach_from == LinkReachChoices.RESTRICTED
+                and can_update_from_access,
+            ]
         )
-        can_get = bool(roles)
-        can_update = is_owner_or_admin or RoleChoices.EDITOR in roles
 
         return {
             "accesses_manage": is_owner_or_admin,
-            "accesses_view": has_role,
-            "ai_transform": can_update,
-            "ai_translate": can_update,
+            "accesses_view": has_access_role,
+            "ai_transform": ai_access,
+            "ai_translate": ai_access,
             "attachment_upload": can_update,
+            "children_list": can_get,
+            "children_create": can_update and user.is_authenticated,
             "collaboration_auth": can_get,
-            "destroy": RoleChoices.OWNER in roles,
+            "cors_proxy": can_get,
+            "descendants": can_get,
+            "destroy": is_owner,
             "favorite": can_get and user.is_authenticated,
             "link_configuration": is_owner_or_admin,
-            "invite_owner": RoleChoices.OWNER in roles,
+            "invite_owner": is_owner,
+            "move": is_owner_or_admin and not self.ancestors_deleted_at,
             "partial_update": can_update,
+            "restore": is_owner,
             "retrieve": can_get,
             "media_auth": can_get,
+            "link_select_options": LinkReachChoices.get_select_options(ancestors_links),
+            "tree": can_get,
             "update": can_update,
             "versions_destroy": is_owner_or_admin,
-            "versions_list": has_role,
-            "versions_retrieve": has_role,
+            "versions_list": has_access_role,
+            "versions_retrieve": has_access_role,
         }
 
     def send_email(self, subject, emails, context=None, language=None):
@@ -596,6 +834,7 @@ class Document(BaseModel):
                 "document": self,
                 "domain": domain,
                 "link": f"{domain}/docs/{self.id}/",
+                "document_title": self.title or str(_("Untitled Document")),
                 "logo_img": settings.EMAIL_LOGO_IMG,
             }
         )
@@ -637,12 +876,91 @@ class Document(BaseModel):
                     '{name} invited you with the role "{role}" on the following document:'
                 ).format(name=sender_name_email, role=role.lower()),
             }
-            subject = _("{name} shared a document with you: {title}").format(
-                name=sender_name, title=self.title
+            subject = (
+                context["title"]
+                if not self.title
+                else _("{name} shared a document with you: {title}").format(
+                    name=sender_name, title=self.title
+                )
             )
 
         self.send_email(subject, [email], context, language)
 
+    @transaction.atomic
+    def soft_delete(self):
+        """
+        Soft delete the document, marking the deletion on descendants.
+        We still keep the .delete() method untouched for programmatic purposes.
+        """
+        if (
+            self._meta.model.objects.filter(
+                models.Q(deleted_at__isnull=False)
+                | models.Q(ancestors_deleted_at__isnull=False),
+                pk=self.pk,
+            ).exists()
+            or self.get_ancestors().filter(deleted_at__isnull=False).exists()
+        ):
+            raise RuntimeError(
+                "This document is already deleted or has deleted ancestors."
+            )
+
+        self.ancestors_deleted_at = self.deleted_at = timezone.now()
+        self.save()
+        self.invalidate_nb_accesses_cache()
+
+        if self.depth > 1:
+            self._meta.model.objects.filter(pk=self.get_parent().pk).update(
+                numchild=models.F("numchild") - 1,
+                has_deleted_children=True,
+            )
+
+        # Mark all descendants as soft deleted
+        self.get_descendants().filter(ancestors_deleted_at__isnull=True).update(
+            ancestors_deleted_at=self.ancestors_deleted_at
+        )
+
+    @transaction.atomic
+    def restore(self):
+        """Cancelling a soft delete with checks."""
+        # This should not happen
+        if self._meta.model.objects.filter(
+            pk=self.pk, deleted_at__isnull=True
+        ).exists():
+            raise RuntimeError("This document is not deleted.")
+
+        if self.deleted_at < get_trashbin_cutoff():
+            raise RuntimeError(
+                "This document was permanently deleted and cannot be restored."
+            )
+
+        # save the current deleted_at value to exclude it from the descendants update
+        current_deleted_at = self.deleted_at
+
+        # Restore the current document
+        self.deleted_at = None
+
+        # Calculate the minimum `deleted_at` among all ancestors
+        ancestors_deleted_at = (
+            self.get_ancestors()
+            .filter(deleted_at__isnull=False)
+            .order_by("deleted_at")
+            .values_list("deleted_at", flat=True)
+            .first()
+        )
+        self.ancestors_deleted_at = ancestors_deleted_at
+        self.save(update_fields=["deleted_at", "ancestors_deleted_at"])
+        self.invalidate_nb_accesses_cache()
+
+        self.get_descendants().exclude(
+            models.Q(deleted_at__isnull=False)
+            | models.Q(ancestors_deleted_at__lt=current_deleted_at)
+        ).update(ancestors_deleted_at=self.ancestors_deleted_at)
+
+        if self.depth > 1:
+            self._meta.model.objects.filter(pk=self.get_parent().pk).update(
+                numchild=models.F("numchild") + 1
+            )
+
 
 class LinkTrace(BaseModel):
     """
@@ -745,6 +1063,16 @@ class DocumentAccess(BaseAccess):
     def __str__(self):
         return f"{self.user!s} is {self.role:s} in document {self.document!s}"
 
+    def save(self, *args, **kwargs):
+        """Override save to clear the document's cache for number of accesses."""
+        super().save(*args, **kwargs)
+        self.document.invalidate_nb_accesses_cache()
+
+    def delete(self, *args, **kwargs):
+        """Override delete to clear the document's cache for number of accesses."""
+        super().delete(*args, **kwargs)
+        self.document.invalidate_nb_accesses_cache()
+
     def get_abilities(self, user):
         """
         Compute and return abilities for a given user on the document access.
@@ -774,11 +1102,27 @@ class Template(BaseModel):
     def __str__(self):
         return self.title
 
+    def get_roles(self, user):
+        """Return the roles a user has on a resource as an iterable."""
+        if not user.is_authenticated:
+            return []
+
+        try:
+            roles = self.user_roles or []
+        except AttributeError:
+            try:
+                roles = self.accesses.filter(
+                    models.Q(user=user) | models.Q(team__in=user.teams),
+                ).values_list("role", flat=True)
+            except (models.ObjectDoesNotExist, IndexError):
+                roles = []
+        return roles
+
     def get_abilities(self, user):
         """
         Compute and return abilities for a given user on the template.
         """
-        roles = get_resource_roles(self, user)
+        roles = self.get_roles(user)
         is_owner_or_admin = bool(
             set(roles).intersection({RoleChoices.OWNER, RoleChoices.ADMIN})
         )
@@ -794,107 +1138,6 @@ class Template(BaseModel):
             "retrieve": can_get,
         }
 
-    def generate_pdf(self, body_html, metadata):
-        """
-        Generate and return a pdf document wrapped around the current template
-        """
-        document_html = weasyprint.HTML(
-            string=DjangoTemplate(self.code).render(
-                Context({"body": html.format_html(body_html), **metadata})
-            )
-        )
-        css = weasyprint.CSS(
-            string=self.css,
-            font_config=weasyprint.text.fonts.FontConfiguration(),
-        )
-
-        pdf_content = document_html.write_pdf(stylesheets=[css], zoom=1)
-        response = FileResponse(BytesIO(pdf_content), content_type="application/pdf")
-        response["Content-Disposition"] = f"attachment; filename={self.title}.pdf"
-
-        return response
-
-    def generate_word(self, body_html, metadata):
-        """
-        Generate and return a docx document wrapped around the current template
-        """
-        template_string = DjangoTemplate(self.code).render(
-            Context({"body": html.format_html(body_html), **metadata})
-        )
-
-        html_string = f"""
-        <!DOCTYPE html>
-        <html>
-        <head>
-            <style>
-                {self.css}
-            </style>
-        </head>
-        <body>
-            {template_string}
-        </body>
-        </html>
-        """
-
-        reference_docx = "core/static/reference.docx"
-        output = BytesIO()
-
-        # Convert the HTML to a temporary docx file
-        with tempfile.NamedTemporaryFile(suffix=".docx", prefix="docx_") as tmp_file:
-            output_path = tmp_file.name
-
-            pypandoc.convert_text(
-                html_string,
-                "docx",
-                format="html",
-                outputfile=output_path,
-                extra_args=["--reference-doc", reference_docx],
-            )
-
-            # Create a BytesIO object to store the output of the temporary docx file
-            with open(output_path, "rb") as f:
-                output = BytesIO(f.read())
-
-        # Ensure the pointer is at the beginning
-        output.seek(0)
-
-        response = FileResponse(
-            output,
-            content_type="application/vnd.openxmlformats-officedocument.wordprocessingml.document",
-        )
-        response["Content-Disposition"] = f"attachment; filename={self.title}.docx"
-
-        return response
-
-    def generate_document(self, body, body_type, export_format):
-        """
-        Generate and return a document for this template around the
-        body passed as argument.
-
-        2 types of body are accepted:
-        - HTML: body_type = "html"
-        - Markdown: body_type = "markdown"
-
-        2 types of documents can be generated:
-        - PDF: export_format = "pdf"
-        - Docx: export_format = "docx"
-        """
-        document = frontmatter.loads(body)
-        metadata = document.metadata
-        strip_body = document.content.strip()
-
-        if body_type == "html":
-            body_html = strip_body
-        else:
-            body_html = (
-                markdown.markdown(textwrap.dedent(strip_body)) if strip_body else ""
-            )
-
-        if export_format == "pdf":
-            return self.generate_pdf(body_html, metadata)
-
-        return self.generate_word(body_html, metadata)
-
 
 class TemplateAccess(BaseAccess):
     """Relation model to give access to a template for a user or a team with a role."""
@@ -983,8 +1226,8 @@ class Invitation(BaseModel):
             User.objects.filter(email=self.email).exists()
             and not settings.OIDC_ALLOW_DUPLICATE_EMAILS
         ):
-            raise exceptions.ValidationError(
-                {"email": _("This email is already associated to a registered user.")}
+            raise ValidationError(
+                {"email": [_("This email is already associated to a registered user.")]}
             )
 
     @property

src/backend/core/services/ai_services.py

@@ -1,8 +1,5 @@
 """AI services."""
 
-import json
-import re
-
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 
@@ -12,32 +9,44 @@ from core import enums
 
 AI_ACTIONS = {
     "prompt": (
-        "Answer the prompt in markdown format. Return JSON: "
-        '{"answer": "Your markdown answer"}. '
-        "Do not provide any other information."
+        "Answer the prompt in markdown format. "
+        "Preserve the language and markdown formatting. "
+        "Do not provide any other information. "
+        "Preserve the language."
     ),
     "correct": (
         "Correct grammar and spelling of the markdown text, "
         "preserving language and markdown formatting. "
-        'Return JSON: {"answer": "your corrected markdown text"}. '
-        "Do not provide any other information."
+        "Do not provide any other information. "
+        "Preserve the language."
     ),
     "rephrase": (
         "Rephrase the given markdown text, "
         "preserving language and markdown formatting. "
-        'Return JSON: {"answer": "your rephrased markdown text"}. '
-        "Do not provide any other information."
+        "Do not provide any other information. "
+        "Preserve the language."
     ),
     "summarize": (
         "Summarize the markdown text, preserving language and markdown formatting. "
-        'Return JSON: {"answer": "your markdown summary"}. '
-        "Do not provide any other information."
+        "Do not provide any other information. "
+        "Preserve the language."
+    ),
+    "beautify": (
+        "Add formatting to the text to make it more readable. "
+        "Do not provide any other information. "
+        "Preserve the language."
+    ),
+    "emojify": (
+        "Add emojis to the important parts of the text. "
+        "Do not provide any other information. "
+        "Preserve the language."
     ),
 }
 
 AI_TRANSLATE = (
-    "Translate the markdown text to {language:s}, preserving markdown formatting. "
-    'Return JSON: {{"answer": "your translated markdown text in {language:s}"}}. '
+    "Keep the same html stucture and formatting. "
+    "Translate the content in the html to the specified language {language:s}. "
+    "Check the translation for accuracy and make any necessary corrections. "
     "Do not provide any other information."
 )
 
@@ -59,32 +68,18 @@ class AIService:
         """Helper method to call the OpenAI API and process the response."""
         response = self.client.chat.completions.create(
             model=settings.AI_MODEL,
-            response_format={"type": "json_object"},
             messages=[
                 {"role": "system", "content": system_content},
-                {"role": "user", "content": json.dumps({"markdown_input": text})},
+                {"role": "user", "content": text},
             ],
         )
 
         content = response.choices[0].message.content
 
-        try:
-            sanitized_content = re.sub(r'\s*"answer"\s*:\s*', '"answer": ', content)
-            sanitized_content = re.sub(r"\s*\}", "}", sanitized_content)
-            sanitized_content = re.sub(r"(?<!\\)\n", "\\\\n", sanitized_content)
-            sanitized_content = re.sub(r"(?<!\\)\t", "\\\\t", sanitized_content)
-
-            json_response = json.loads(sanitized_content)
-        except (json.JSONDecodeError, IndexError):
-            try:
-                json_response = json.loads(content)
-            except json.JSONDecodeError as err:
-                raise RuntimeError("AI response is not valid JSON", content) from err
-
-        if "answer" not in json_response:
+        if not content:
             raise RuntimeError("AI response does not contain an answer")
 
-        return json_response
+        return {"answer": content}
 
     def transform(self, text, action):
         """Transform text based on specified action."""

src/backend/core/tests/commands/test_update_files_content_type_metadata.py

@@ -0,0 +1,50 @@
+"""
+Unit test for `update_files_content_type_metadata` command.
+"""
+
+import uuid
+
+from django.core.files.storage import default_storage
+from django.core.management import call_command
+
+import pytest
+
+from core import factories
+
+
+@pytest.mark.django_db
+def test_update_files_content_type_metadata():
+    """
+    Test that the command `update_files_content_type_metadata`
+    fixes the ContentType of attachment in the storage.
+    """
+    s3_client = default_storage.connection.meta.client
+    bucket_name = default_storage.bucket_name
+
+    # Create files with a wrong ContentType
+    keys = []
+    for _ in range(10):
+        doc_id = uuid.uuid4()
+        factories.DocumentFactory(id=doc_id)
+        key = f"{doc_id}/attachments/testfile.png"
+        keys.append(key)
+        fake_png = b"\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR..."
+        s3_client.put_object(
+            Bucket=bucket_name,
+            Key=key,
+            Body=fake_png,
+            ContentType="text/plain",
+            Metadata={"owner": "None"},
+        )
+
+    # Call the command that fixes the ContentType
+    call_command("update_files_content_type_metadata")
+
+    for key in keys:
+        head_resp = s3_client.head_object(Bucket=bucket_name, Key=key)
+        assert head_resp["ContentType"] == "image/png", (
+            f"ContentType not fixed, got {head_resp['ContentType']!r}"
+        )
+
+        # Check that original metadata was preserved
+        assert head_resp["Metadata"].get("owner") == "None"

src/backend/core/tests/documents/test_api_document_accesses.py

@@ -76,14 +76,14 @@ def test_api_document_accesses_list_authenticated_related(via, mock_user_teams):
         user_access = models.DocumentAccess.objects.create(
             document=document,
             user=user,
-            role=random.choice(models.RoleChoices.choices)[0],
+            role=random.choice(models.RoleChoices.values),
         )
     elif via == TEAM:
         mock_user_teams.return_value = ["lasuite", "unknown"]
         user_access = models.DocumentAccess.objects.create(
             document=document,
             team="lasuite",
-            role=random.choice(models.RoleChoices.choices)[0],
+            role=random.choice(models.RoleChoices.values),
         )
 
     access1 = factories.TeamDocumentAccessFactory(document=document)
@@ -227,7 +227,7 @@ def test_api_document_accesses_update_anonymous():
     new_values = {
         "id": uuid4(),
         "user": factories.UserFactory().id,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     api_client = APIClient()
@@ -260,7 +260,7 @@ def test_api_document_accesses_update_authenticated_unrelated():
     new_values = {
         "id": uuid4(),
         "user": factories.UserFactory().id,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     for field, value in new_values.items():
@@ -302,7 +302,7 @@ def test_api_document_accesses_update_authenticated_reader_or_editor(
     new_values = {
         "id": uuid4(),
         "user": factories.UserFactory().id,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     for field, value in new_values.items():
@@ -413,7 +413,7 @@ def test_api_document_accesses_update_administrator_from_owner(via, mock_user_te
     new_values = {
         "id": uuid4(),
         "user_id": factories.UserFactory().id,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     for field, value in new_values.items():
@@ -527,7 +527,7 @@ def test_api_document_accesses_update_owner(
     new_values = {
         "id": uuid4(),
         "user_id": factories.UserFactory().id,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     for field, value in new_values.items():

src/backend/core/tests/documents/test_api_document_accesses_create.py

@@ -16,6 +16,9 @@ from core.tests.conftest import TEAM, USER, VIA
 pytestmark = pytest.mark.django_db
 
 
+# Create
+
+
 def test_api_document_accesses_create_anonymous():
     """Anonymous users should not be allowed to create document accesses."""
     document = factories.DocumentFactory()
@@ -26,7 +29,7 @@ def test_api_document_accesses_create_anonymous():
         {
             "user_id": str(other_user.id),
             "document": str(document.id),
-            "role": random.choice(models.RoleChoices.choices)[0],
+            "role": random.choice(models.RoleChoices.values),
         },
         format="json",
     )
@@ -123,7 +126,7 @@ def test_api_document_accesses_create_authenticated_administrator(via, mock_user
             document=document, team="lasuite", role="administrator"
         )
 
-    other_user = factories.UserFactory()
+    other_user = factories.UserFactory(language="en-us")
 
     # It should not be allowed to create an owner access
     response = client.post(
@@ -199,7 +202,7 @@ def test_api_document_accesses_create_authenticated_owner(via, mock_user_teams):
             document=document, team="lasuite", role="owner"
         )
 
-    other_user = factories.UserFactory()
+    other_user = factories.UserFactory(language="en-us")
 
     role = random.choice([role[0] for role in models.RoleChoices.choices])
 
@@ -235,3 +238,73 @@ def test_api_document_accesses_create_authenticated_owner(via, mock_user_teams):
         f"on the following document: {document.title}"
     ) in email_content
     assert "docs/" + str(document.id) + "/" in email_content
+
+
+@pytest.mark.parametrize("via", VIA)
+def test_api_document_accesses_create_email_in_receivers_language(via, mock_user_teams):
+    """
+    The email sent to the accesses to notify them of the adding, should be in their language.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory()
+    if via == USER:
+        factories.UserDocumentAccessFactory(document=document, user=user, role="owner")
+    elif via == TEAM:
+        mock_user_teams.return_value = ["lasuite", "unknown"]
+        factories.TeamDocumentAccessFactory(
+            document=document, team="lasuite", role="owner"
+        )
+
+    role = random.choice([role[0] for role in models.RoleChoices.choices])
+
+    assert len(mail.outbox) == 0
+
+    other_users = (
+        factories.UserFactory(language="en-us"),
+        factories.UserFactory(language="fr-fr"),
+    )
+
+    for index, other_user in enumerate(other_users):
+        expected_language = other_user.language
+        response = client.post(
+            f"/api/v1.0/documents/{document.id!s}/accesses/",
+            {
+                "user_id": str(other_user.id),
+                "role": role,
+            },
+            format="json",
+        )
+
+        assert response.status_code == 201
+        assert models.DocumentAccess.objects.filter(user=other_user).count() == 1
+        new_document_access = models.DocumentAccess.objects.filter(
+            user=other_user
+        ).get()
+        other_user_data = serializers.UserSerializer(instance=other_user).data
+        assert response.json() == {
+            "id": str(new_document_access.id),
+            "user": other_user_data,
+            "team": "",
+            "role": role,
+            "abilities": new_document_access.get_abilities(user),
+        }
+        assert len(mail.outbox) == index + 1
+        email = mail.outbox[index]
+        assert email.to == [other_user_data["email"]]
+        email_content = " ".join(email.body.split())
+        email_subject = " ".join(email.subject.split())
+        if expected_language == "en-us":
+            assert (
+                f"{user.full_name} shared a document with you: {document.title}".lower()
+                in email_subject.lower()
+            )
+        elif expected_language == "fr-fr":
+            assert (
+                f"{user.full_name} a partagé un document avec vous: {document.title}".lower()
+                in email_subject.lower()
+            )
+        assert "docs/" + str(document.id) + "/" in email_content.lower()

src/backend/core/tests/documents/test_api_document_invitations.py

@@ -304,7 +304,7 @@ def test_api_document_invitations_create_anonymous():
     document = factories.DocumentFactory()
     invitation_values = {
         "email": "guest@example.com",
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     response = APIClient().post(
@@ -325,7 +325,7 @@ def test_api_document_invitations_create_authenticated_outsider():
     document = factories.DocumentFactory()
     invitation_values = {
         "email": "guest@example.com",
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     client = APIClient()
@@ -370,7 +370,7 @@ def test_api_document_invitations_create_privileged_members(
     Only owners and administrators should be able to invite new users.
     Only owners can invite owners.
     """
-    user = factories.UserFactory()
+    user = factories.UserFactory(language="en-us")
     document = factories.DocumentFactory()
     if via == USER:
         factories.UserDocumentAccessFactory(document=document, user=user, role=inviting)
@@ -422,11 +422,12 @@ def test_api_document_invitations_create_privileged_members(
         }
 
 
-def test_api_document_invitations_create_email_from_content_language():
+def test_api_document_invitations_create_email_from_senders_language():
     """
-    The email generated is from the language set in the Content-Language header
+    When inviting on a document a user who does not exist yet in our database,
+    the invitation email should be sent in the language of the sending user.
     """
-    user = factories.UserFactory()
+    user = factories.UserFactory(language="fr-fr")
     document = factories.DocumentFactory()
     factories.UserDocumentAccessFactory(document=document, user=user, role="owner")
 
@@ -444,7 +445,6 @@ def test_api_document_invitations_create_email_from_content_language():
         f"/api/v1.0/documents/{document.id!s}/invitations/",
         invitation_values,
         format="json",
-        headers={"Content-Language": "fr-fr"},
     )
 
     assert response.status_code == 201
@@ -458,52 +458,17 @@ def test_api_document_invitations_create_email_from_content_language():
 
     email_content = " ".join(email.body.split())
     assert f"{user.full_name} a partagé un document avec vous!" in email_content
-
-
-def test_api_document_invitations_create_email_from_content_language_not_supported():
-    """
-    If the language from the Content-Language is not supported
-    it will display the default language, English.
-    """
-    user = factories.UserFactory()
-    document = factories.DocumentFactory()
-    factories.UserDocumentAccessFactory(document=document, user=user, role="owner")
-
-    invitation_values = {
-        "email": "guest@example.com",
-        "role": "reader",
-    }
-
-    assert len(mail.outbox) == 0
-
-    client = APIClient()
-    client.force_login(user)
-
-    response = client.post(
-        f"/api/v1.0/documents/{document.id!s}/invitations/",
-        invitation_values,
-        format="json",
-        headers={"Content-Language": "not-supported"},
+    assert (
+        "Docs, votre nouvel outil incontournable pour organiser, partager et collaborer "
+        "sur vos documents en équipe." in email_content
     )
 
-    assert response.status_code == 201
-    assert response.json()["email"] == "guest@example.com"
-    assert models.Invitation.objects.count() == 1
-    assert len(mail.outbox) == 1
-
-    email = mail.outbox[0]
-
-    assert email.to == ["guest@example.com"]
-
-    email_content = " ".join(email.body.split())
-    assert f"{user.full_name} shared a document with you!" in email_content
-
 
 def test_api_document_invitations_create_email_full_name_empty():
     """
     If the full name of the user is empty, it will display the email address.
     """
-    user = factories.UserFactory(full_name="")
+    user = factories.UserFactory(full_name="", language="en-us")
     document = factories.DocumentFactory()
     factories.UserDocumentAccessFactory(document=document, user=user, role="owner")
 
@@ -550,7 +515,7 @@ def test_api_document_invitations_create_issuer_and_document_override():
         "document": str(other_document.id),
         "issuer": str(factories.UserFactory().id),
         "email": "guest@example.com",
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     client = APIClient()
@@ -595,9 +560,11 @@ def test_api_document_invitations_create_cannot_duplicate_invitation():
     )
 
     assert response.status_code == 400
-    assert response.json() == [
-        "Document invitation with this Email address and Document already exists."
-    ]
+    assert response.json() == {
+        "__all__": [
+            "Document invitation with this Email address and Document already exists."
+        ],
+    }
 
 
 def test_api_document_invitations_create_cannot_invite_existing_users():
@@ -611,7 +578,7 @@ def test_api_document_invitations_create_cannot_invite_existing_users():
     # Build an invitation to the email of an exising identity in the db
     invitation_values = {
         "email": existing_user.email,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     client = APIClient()
@@ -624,7 +591,9 @@ def test_api_document_invitations_create_cannot_invite_existing_users():
     )
 
     assert response.status_code == 400
-    assert response.json() == ["This email is already associated to a registered user."]
+    assert response.json() == {
+        "email": ["This email is already associated to a registered user."]
+    }
 
 
 # Update

src/backend/core/tests/documents/test_api_document_versions.py

@@ -75,14 +75,14 @@ def test_api_document_versions_list_authenticated_related_success(via, mock_user
         models.DocumentAccess.objects.create(
             document=document,
             user=user,
-            role=random.choice(models.RoleChoices.choices)[0],
+            role=random.choice(models.RoleChoices.values),
         )
     elif via == TEAM:
         mock_user_teams.return_value = ["lasuite", "unknown"]
         models.DocumentAccess.objects.create(
             document=document,
             team="lasuite",
-            role=random.choice(models.RoleChoices.choices)[0],
+            role=random.choice(models.RoleChoices.values),
         )
 
     # Other versions of documents to which the user has access should not be listed
@@ -134,14 +134,14 @@ def test_api_document_versions_list_authenticated_related_pagination(
         models.DocumentAccess.objects.create(
             document=document,
             user=user,
-            role=random.choice(models.RoleChoices.choices)[0],
+            role=random.choice(models.RoleChoices.values),
         )
     elif via == TEAM:
         mock_user_teams.return_value = ["lasuite", "unknown"]
         models.DocumentAccess.objects.create(
             document=document,
             team="lasuite",
-            role=random.choice(models.RoleChoices.choices)[0],
+            role=random.choice(models.RoleChoices.values),
         )
 
     for i in range(4):
@@ -185,6 +185,84 @@ def test_api_document_versions_list_authenticated_related_pagination(
     assert content["versions"][0]["version_id"] == all_version_ids[2]
 
 
+@pytest.mark.parametrize("via", VIA)
+def test_api_document_versions_list_authenticated_related_pagination_parent(
+    via, mock_user_teams
+):
+    """
+    When a user gains access to a document's versions via an ancestor, the date of access
+    to the parent should be used to filter versions that were created prior to the
+    user gaining access to the document.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory()
+    parent = factories.DocumentFactory(parent=grand_parent)
+    document = factories.DocumentFactory(parent=parent)
+    for i in range(3):
+        document.content = f"before {i:d}"
+        document.save()
+
+    if via == USER:
+        models.DocumentAccess.objects.create(
+            document=grand_parent,
+            user=user,
+            role=random.choice(models.RoleChoices.values),
+        )
+    elif via == TEAM:
+        mock_user_teams.return_value = ["lasuite", "unknown"]
+        models.DocumentAccess.objects.create(
+            document=grand_parent,
+            team="lasuite",
+            role=random.choice(models.RoleChoices.values),
+        )
+
+    for i in range(4):
+        document.content = f"after {i:d}"
+        document.save()
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/versions/",
+    )
+
+    content = response.json()
+
+    assert response.status_code == 200
+    assert content["is_truncated"] is False
+    # The current version is not listed
+    assert content["count"] == 3
+    assert content["next_version_id_marker"] == ""
+    all_version_ids = [version["version_id"] for version in content["versions"]]
+
+    # - set page size
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/versions/?page_size=2",
+    )
+
+    content = response.json()
+    assert content["count"] == 2
+    assert content["is_truncated"] is True
+    marker = content["next_version_id_marker"]
+    assert marker == all_version_ids[1]
+    assert [
+        version["version_id"] for version in content["versions"]
+    ] == all_version_ids[:2]
+
+    # - get page 2
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/versions/?page_size=2&version_id={marker:s}",
+    )
+
+    content = response.json()
+    assert content["count"] == 1
+    assert content["is_truncated"] is False
+    assert content["next_version_id_marker"] == ""
+    assert content["versions"][0]["version_id"] == all_version_ids[2]
+
+
 def test_api_document_versions_list_exceeds_max_page_size():
     """Page size should not exceed the limit set on the serializer"""
     user = factories.UserFactory()
@@ -314,6 +392,74 @@ def test_api_document_versions_retrieve_authenticated_related(via, mock_user_tea
     assert response.json()["content"] == "new content 1"
 
 
+@pytest.mark.parametrize("via", VIA)
+def test_api_document_versions_retrieve_authenticated_related_parent(
+    via, mock_user_teams
+):
+    """
+    A user who gains access to a document's versions via one of its ancestors, should be able to
+    retrieve the document versions. The date of access to the parent should be used to filter
+    versions that were created prior to the user gaining access to the document.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory()
+    parent = factories.DocumentFactory(parent=grand_parent)
+    document = factories.DocumentFactory(parent=parent)
+    document.content = "new content"
+    document.save()
+
+    assert len(document.get_versions_slice()["versions"]) == 1
+    version_id = document.get_versions_slice()["versions"][0]["version_id"]
+
+    if via == USER:
+        factories.UserDocumentAccessFactory(document=grand_parent, user=user)
+    elif via == TEAM:
+        mock_user_teams.return_value = ["lasuite", "unknown"]
+        factories.TeamDocumentAccessFactory(document=grand_parent, team="lasuite")
+
+    time.sleep(1)  # minio stores datetimes with the precision of a second
+
+    # Versions created before the document was shared should not be seen by the user
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/versions/{version_id:s}/",
+    )
+
+    assert response.status_code == 404
+
+    # Create a new version should not make it available to the user because
+    # only the current version is available to the user but it is excluded
+    # from the list
+    document.content = "new content 1"
+    document.save()
+
+    assert len(document.get_versions_slice()["versions"]) == 2
+    version_id = document.get_versions_slice()["versions"][0]["version_id"]
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/versions/{version_id:s}/",
+    )
+
+    assert response.status_code == 404
+
+    # Adding one more version should make the previous version available to the user
+    document.content = "new content 2"
+    document.save()
+
+    assert len(document.get_versions_slice()["versions"]) == 3
+    version_id = document.get_versions_slice()["versions"][0]["version_id"]
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/versions/{version_id:s}/",
+    )
+
+    assert response.status_code == 200
+    assert response.json()["content"] == "new content 1"
+
+
 def test_api_document_versions_create_anonymous():
     """Anonymous users should not be allowed to create document versions."""
     document = factories.DocumentFactory()
@@ -458,15 +604,19 @@ def test_api_document_versions_update_authenticated_related(via, mock_user_teams
 # Delete
 
 
-def test_api_document_versions_delete_anonymous():
+@pytest.mark.parametrize("reach", models.LinkReachChoices.values)
+def test_api_document_versions_delete_anonymous(reach):
     """Anonymous users should not be allowed to destroy a document version."""
-    access = factories.UserDocumentAccessFactory()
+    access = factories.UserDocumentAccessFactory(document__link_reach=reach)
 
     response = APIClient().delete(
         f"/api/v1.0/documents/{access.document_id!s}/versions/{access.id!s}/",
     )
 
     assert response.status_code == 401
+    assert response.json() == {
+        "detail": "Authentication credentials were not provided."
+    }
 
 
 @pytest.mark.parametrize("reach", models.LinkReachChoices.values)

src/backend/core/tests/documents/test_api_documents_ai_transform.py

@@ -2,6 +2,7 @@
 Test AI transform API endpoint for users in impress's core app.
 """
 
+import random
 from unittest.mock import MagicMock, patch
 
 from django.core.cache import cache
@@ -31,6 +32,9 @@ def ai_settings():
         yield
 
 
+@override_settings(
+    AI_ALLOW_REACH_FROM=random.choice(["public", "authenticated", "restricted"])
+)
 @pytest.mark.parametrize(
     "reach, role",
     [
@@ -57,6 +61,7 @@ def test_api_documents_ai_transform_anonymous_forbidden(reach, role):
     }
 
 
+@override_settings(AI_ALLOW_REACH_FROM="public")
 @pytest.mark.usefixtures("ai_settings")
 @patch("openai.resources.chat.completions.Completions.create")
 def test_api_documents_ai_transform_anonymous_success(mock_create):
@@ -66,6 +71,40 @@ def test_api_documents_ai_transform_anonymous_success(mock_create):
     """
     document = factories.DocumentFactory(link_reach="public", link_role="editor")
 
+    mock_create.return_value = MagicMock(
+        choices=[MagicMock(message=MagicMock(content="Salut"))]
+    )
+
+    url = f"/api/v1.0/documents/{document.id!s}/ai-transform/"
+    response = APIClient().post(url, {"text": "Hello", "action": "summarize"})
+
+    assert response.status_code == 200
+    assert response.json() == {"answer": "Salut"}
+    mock_create.assert_called_once_with(
+        model="llama",
+        messages=[
+            {
+                "role": "system",
+                "content": (
+                    "Summarize the markdown text, preserving language and markdown formatting. "
+                    "Do not provide any other information. Preserve the language."
+                ),
+            },
+            {"role": "user", "content": "Hello"},
+        ],
+    )
+
+
+@override_settings(AI_ALLOW_REACH_FROM=random.choice(["authenticated", "restricted"]))
+@pytest.mark.usefixtures("ai_settings")
+@patch("openai.resources.chat.completions.Completions.create")
+def test_api_documents_ai_transform_anonymous_limited_by_setting(mock_create):
+    """
+    Anonymous users should be able to request AI transform to a document
+    if the link reach and role permit it.
+    """
+    document = factories.DocumentFactory(link_reach="public", link_role="editor")
+
     answer = '{"answer": "Salut"}'
     mock_create.return_value = MagicMock(
         choices=[MagicMock(message=MagicMock(content=answer))]
@@ -74,23 +113,7 @@ def test_api_documents_ai_transform_anonymous_success(mock_create):
     url = f"/api/v1.0/documents/{document.id!s}/ai-transform/"
     response = APIClient().post(url, {"text": "Hello", "action": "summarize"})
 
-    assert response.status_code == 200
-    assert response.json() == {"answer": "Salut"}
-    mock_create.assert_called_once_with(
-        model="llama",
-        response_format={"type": "json_object"},
-        messages=[
-            {
-                "role": "system",
-                "content": (
-                    "Summarize the markdown text, preserving language and markdown formatting. "
-                    'Return JSON: {"answer": "your markdown summary"}. Do not provide any other '
-                    "information."
-                ),
-            },
-            {"role": "user", "content": '{"markdown_input": "Hello"}'},
-        ],
-    )
+    assert response.status_code == 401
 
 
 @pytest.mark.parametrize(
@@ -144,9 +167,8 @@ def test_api_documents_ai_transform_authenticated_success(mock_create, reach, ro
 
     document = factories.DocumentFactory(link_reach=reach, link_role=role)
 
-    answer = '{"answer": "Salut"}'
     mock_create.return_value = MagicMock(
-        choices=[MagicMock(message=MagicMock(content=answer))]
+        choices=[MagicMock(message=MagicMock(content="Salut"))]
     )
 
     url = f"/api/v1.0/documents/{document.id!s}/ai-transform/"
@@ -156,16 +178,15 @@ def test_api_documents_ai_transform_authenticated_success(mock_create, reach, ro
     assert response.json() == {"answer": "Salut"}
     mock_create.assert_called_once_with(
         model="llama",
-        response_format={"type": "json_object"},
         messages=[
             {
                 "role": "system",
                 "content": (
-                    'Answer the prompt in markdown format. Return JSON: {"answer": '
-                    '"Your markdown answer"}. Do not provide any other information.'
+                    "Answer the prompt in markdown format. Preserve the language and markdown "
+                    "formatting. Do not provide any other information. Preserve the language."
                 ),
             },
-            {"role": "user", "content": '{"markdown_input": "Hello"}'},
+            {"role": "user", "content": "Hello"},
         ],
     )
 
@@ -220,9 +241,8 @@ def test_api_documents_ai_transform_success(mock_create, via, role, mock_user_te
             document=document, team="lasuite", role=role
         )
 
-    answer = '{"answer": "Salut"}'
     mock_create.return_value = MagicMock(
-        choices=[MagicMock(message=MagicMock(content=answer))]
+        choices=[MagicMock(message=MagicMock(content="Salut"))]
     )
 
     url = f"/api/v1.0/documents/{document.id!s}/ai-transform/"
@@ -232,16 +252,15 @@ def test_api_documents_ai_transform_success(mock_create, via, role, mock_user_te
     assert response.json() == {"answer": "Salut"}
     mock_create.assert_called_once_with(
         model="llama",
-        response_format={"type": "json_object"},
         messages=[
             {
                 "role": "system",
                 "content": (
-                    'Answer the prompt in markdown format. Return JSON: {"answer": '
-                    '"Your markdown answer"}. Do not provide any other information.'
+                    "Answer the prompt in markdown format. Preserve the language and markdown "
+                    "formatting. Do not provide any other information. Preserve the language."
                 ),
             },
-            {"role": "user", "content": '{"markdown_input": "Hello"}'},
+            {"role": "user", "content": "Hello"},
         ],
     )
 
@@ -289,9 +308,8 @@ def test_api_documents_ai_transform_throttling_document(mock_create):
     client = APIClient()
     document = factories.DocumentFactory(link_reach="public", link_role="editor")
 
-    answer = '{"answer": "Salut"}'
     mock_create.return_value = MagicMock(
-        choices=[MagicMock(message=MagicMock(content=answer))]
+        choices=[MagicMock(message=MagicMock(content="Salut"))]
     )
 
     url = f"/api/v1.0/documents/{document.id!s}/ai-transform/"
@@ -324,9 +342,8 @@ def test_api_documents_ai_transform_throttling_user(mock_create):
     client = APIClient()
     client.force_login(user)
 
-    answer = '{"answer": "Salut"}'
     mock_create.return_value = MagicMock(
-        choices=[MagicMock(message=MagicMock(content=answer))]
+        choices=[MagicMock(message=MagicMock(content="Salut"))]
     )
 
     for _ in range(3):

src/backend/core/tests/documents/test_api_documents_ai_translate.py

@@ -2,6 +2,7 @@
 Test AI translate API endpoint for users in impress's core app.
 """
 
+import random
 from unittest.mock import MagicMock, patch
 
 from django.core.cache import cache
@@ -51,6 +52,9 @@ def test_api_documents_ai_translate_viewset_options_metadata():
     }
 
 
+@override_settings(
+    AI_ALLOW_REACH_FROM=random.choice(["public", "authenticated", "restricted"])
+)
 @pytest.mark.parametrize(
     "reach, role",
     [
@@ -77,6 +81,7 @@ def test_api_documents_ai_translate_anonymous_forbidden(reach, role):
     }
 
 
+@override_settings(AI_ALLOW_REACH_FROM="public")
 @pytest.mark.usefixtures("ai_settings")
 @patch("openai.resources.chat.completions.Completions.create")
 def test_api_documents_ai_translate_anonymous_success(mock_create):
@@ -86,6 +91,42 @@ def test_api_documents_ai_translate_anonymous_success(mock_create):
     """
     document = factories.DocumentFactory(link_reach="public", link_role="editor")
 
+    mock_create.return_value = MagicMock(
+        choices=[MagicMock(message=MagicMock(content="Ola"))]
+    )
+
+    url = f"/api/v1.0/documents/{document.id!s}/ai-translate/"
+    response = APIClient().post(url, {"text": "Hello", "language": "es"})
+
+    assert response.status_code == 200
+    assert response.json() == {"answer": "Ola"}
+    mock_create.assert_called_once_with(
+        model="llama",
+        messages=[
+            {
+                "role": "system",
+                "content": (
+                    "Keep the same html stucture and formatting. "
+                    "Translate the content in the html to the specified language Spanish. "
+                    "Check the translation for accuracy and make any necessary corrections. "
+                    "Do not provide any other information."
+                ),
+            },
+            {"role": "user", "content": "Hello"},
+        ],
+    )
+
+
+@override_settings(AI_ALLOW_REACH_FROM=random.choice(["authenticated", "restricted"]))
+@pytest.mark.usefixtures("ai_settings")
+@patch("openai.resources.chat.completions.Completions.create")
+def test_api_documents_ai_translate_anonymous_limited_by_setting(mock_create):
+    """
+    Anonymous users should be able to request AI translate to a document
+    if the link reach and role permit it.
+    """
+    document = factories.DocumentFactory(link_reach="public", link_role="editor")
+
     answer = '{"answer": "Salut"}'
     mock_create.return_value = MagicMock(
         choices=[MagicMock(message=MagicMock(content=answer))]
@@ -94,23 +135,7 @@ def test_api_documents_ai_translate_anonymous_success(mock_create):
     url = f"/api/v1.0/documents/{document.id!s}/ai-translate/"
     response = APIClient().post(url, {"text": "Hello", "language": "es"})
 
-    assert response.status_code == 200
-    assert response.json() == {"answer": "Salut"}
-    mock_create.assert_called_once_with(
-        model="llama",
-        response_format={"type": "json_object"},
-        messages=[
-            {
-                "role": "system",
-                "content": (
-                    "Translate the markdown text to Spanish, preserving markdown formatting. "
-                    'Return JSON: {"answer": "your translated markdown text in Spanish"}. '
-                    "Do not provide any other information."
-                ),
-            },
-            {"role": "user", "content": '{"markdown_input": "Hello"}'},
-        ],
-    )
+    assert response.status_code == 401
 
 
 @pytest.mark.parametrize(
@@ -164,9 +189,8 @@ def test_api_documents_ai_translate_authenticated_success(mock_create, reach, ro
 
     document = factories.DocumentFactory(link_reach=reach, link_role=role)
 
-    answer = '{"answer": "Salut"}'
     mock_create.return_value = MagicMock(
-        choices=[MagicMock(message=MagicMock(content=answer))]
+        choices=[MagicMock(message=MagicMock(content="Salut"))]
     )
 
     url = f"/api/v1.0/documents/{document.id!s}/ai-translate/"
@@ -176,18 +200,18 @@ def test_api_documents_ai_translate_authenticated_success(mock_create, reach, ro
     assert response.json() == {"answer": "Salut"}
     mock_create.assert_called_once_with(
         model="llama",
-        response_format={"type": "json_object"},
         messages=[
             {
                 "role": "system",
                 "content": (
-                    "Translate the markdown text to Colombian Spanish, "
-                    "preserving markdown formatting. Return JSON: "
-                    '{"answer": "your translated markdown text in Colombian Spanish"}. '
+                    "Keep the same html stucture and formatting. "
+                    "Translate the content in the html to the "
+                    "specified language Colombian Spanish. "
+                    "Check the translation for accuracy and make any necessary corrections. "
                     "Do not provide any other information."
                 ),
             },
-            {"role": "user", "content": '{"markdown_input": "Hello"}'},
+            {"role": "user", "content": "Hello"},
         ],
     )
 
@@ -242,9 +266,8 @@ def test_api_documents_ai_translate_success(mock_create, via, role, mock_user_te
             document=document, team="lasuite", role=role
         )
 
-    answer = '{"answer": "Salut"}'
     mock_create.return_value = MagicMock(
-        choices=[MagicMock(message=MagicMock(content=answer))]
+        choices=[MagicMock(message=MagicMock(content="Salut"))]
     )
 
     url = f"/api/v1.0/documents/{document.id!s}/ai-translate/"
@@ -254,18 +277,18 @@ def test_api_documents_ai_translate_success(mock_create, via, role, mock_user_te
     assert response.json() == {"answer": "Salut"}
     mock_create.assert_called_once_with(
         model="llama",
-        response_format={"type": "json_object"},
         messages=[
             {
                 "role": "system",
                 "content": (
-                    "Translate the markdown text to Colombian Spanish, "
-                    "preserving markdown formatting. Return JSON: "
-                    '{"answer": "your translated markdown text in Colombian Spanish"}. '
+                    "Keep the same html stucture and formatting. "
+                    "Translate the content in the html to the "
+                    "specified language Colombian Spanish. "
+                    "Check the translation for accuracy and make any necessary corrections. "
                     "Do not provide any other information."
                 ),
             },
-            {"role": "user", "content": '{"markdown_input": "Hello"}'},
+            {"role": "user", "content": "Hello"},
         ],
     )
 
@@ -313,9 +336,8 @@ def test_api_documents_ai_translate_throttling_document(mock_create):
     client = APIClient()
     document = factories.DocumentFactory(link_reach="public", link_role="editor")
 
-    answer = '{"answer": "Salut"}'
     mock_create.return_value = MagicMock(
-        choices=[MagicMock(message=MagicMock(content=answer))]
+        choices=[MagicMock(message=MagicMock(content="Salut"))]
     )
 
     url = f"/api/v1.0/documents/{document.id!s}/ai-translate/"
@@ -348,9 +370,8 @@ def test_api_documents_ai_translate_throttling_user(mock_create):
     client = APIClient()
     client.force_login(user)
 
-    answer = '{"answer": "Salut"}'
     mock_create.return_value = MagicMock(
-        choices=[MagicMock(message=MagicMock(content=answer))]
+        choices=[MagicMock(message=MagicMock(content="Salut"))]
     )
 
     for _ in range(3):

src/backend/core/tests/documents/test_api_documents_attachment_upload.py

@@ -64,12 +64,23 @@ def test_api_documents_attachment_upload_anonymous_success():
     assert response.status_code == 201
 
     pattern = re.compile(rf"^/media/{document.id!s}/attachments/(.*)\.png")
-    match = pattern.search(response.json()["file"])
+    file_path = response.json()["file"]
+    match = pattern.search(file_path)
     file_id = match.group(1)
 
     # Validate that file_id is a valid UUID
     uuid.UUID(file_id)
 
+    # Now, check the metadata of the uploaded file
+    key = file_path.replace("/media", "")
+    file_head = default_storage.connection.meta.client.head_object(
+        Bucket=default_storage.bucket_name, Key=key
+    )
+
+    assert file_head["Metadata"] == {"owner": "None"}
+    assert file_head["ContentType"] == "image/png"
+    assert file_head["ContentDisposition"] == 'inline; filename="test.png"'
+
 
 @pytest.mark.parametrize(
     "reach, role",
@@ -206,6 +217,8 @@ def test_api_documents_attachment_upload_success(via, role, mock_user_teams):
         Bucket=default_storage.bucket_name, Key=key
     )
     assert file_head["Metadata"] == {"owner": str(user.id)}
+    assert file_head["ContentType"] == "image/png"
+    assert file_head["ContentDisposition"] == 'inline; filename="test.png"'
 
 
 def test_api_documents_attachment_upload_invalid(client):
@@ -247,16 +260,18 @@ def test_api_documents_attachment_upload_size_limit_exceeded(settings):
 
 
 @pytest.mark.parametrize(
-    "name,content,extension",
+    "name,content,extension,content_type",
     [
-        ("test.exe", b"text", "exe"),
-        ("test", b"text", "txt"),
-        ("test.aaaaaa", b"test", "txt"),
-        ("test.txt", PIXEL, "txt"),
-        ("test.py", b"#!/usr/bin/python", "py"),
+        ("test.exe", b"text", "exe", "text/plain"),
+        ("test", b"text", "txt", "text/plain"),
+        ("test.aaaaaa", b"test", "txt", "text/plain"),
+        ("test.txt", PIXEL, "txt", "image/png"),
+        ("test.py", b"#!/usr/bin/python", "py", "text/plain"),
     ],
 )
-def test_api_documents_attachment_upload_fix_extension(name, content, extension):
+def test_api_documents_attachment_upload_fix_extension(
+    name, content, extension, content_type
+):
     """
     A file with no extension or a wrong extension is accepted and the extension
     is corrected in storage.
@@ -278,7 +293,9 @@ def test_api_documents_attachment_upload_fix_extension(name, content, extension)
     match = pattern.search(file_path)
     file_id = match.group(1)
 
+    assert "-unsafe" in file_id
     # Validate that file_id is a valid UUID
+    file_id = file_id.replace("-unsafe", "")
     uuid.UUID(file_id)
 
     # Now, check the metadata of the uploaded file
@@ -287,6 +304,8 @@ def test_api_documents_attachment_upload_fix_extension(name, content, extension)
         Bucket=default_storage.bucket_name, Key=key
     )
     assert file_head["Metadata"] == {"owner": str(user.id), "is_unsafe": "true"}
+    assert file_head["ContentType"] == content_type
+    assert file_head["ContentDisposition"] == f'attachment; filename="{name:s}"'
 
 
 def test_api_documents_attachment_upload_empty_file():
@@ -326,7 +345,9 @@ def test_api_documents_attachment_upload_unsafe():
     match = pattern.search(file_path)
     file_id = match.group(1)
 
+    assert "-unsafe" in file_id
     # Validate that file_id is a valid UUID
+    file_id = file_id.replace("-unsafe", "")
     uuid.UUID(file_id)
 
     # Now, check the metadata of the uploaded file
@@ -335,3 +356,5 @@ def test_api_documents_attachment_upload_unsafe():
         Bucket=default_storage.bucket_name, Key=key
     )
     assert file_head["Metadata"] == {"owner": str(user.id), "is_unsafe": "true"}
+    assert file_head["ContentType"] == "application/octet-stream"
+    assert file_head["ContentDisposition"] == 'attachment; filename="script.exe"'

src/backend/core/tests/documents/test_api_documents_children_create.py

@@ -0,0 +1,251 @@
+"""
+Tests for Documents API endpoint in impress's core app: children create
+"""
+
+from uuid import uuid4
+
+import pytest
+from rest_framework.test import APIClient
+
+from core import factories
+from core.models import Document, LinkReachChoices, LinkRoleChoices
+
+pytestmark = pytest.mark.django_db
+
+
+@pytest.mark.parametrize("depth", [1, 2, 3])
+@pytest.mark.parametrize("role", LinkRoleChoices.values)
+@pytest.mark.parametrize("reach", LinkReachChoices.values)
+def test_api_documents_children_create_anonymous(reach, role, depth):
+    """Anonymous users should not be allowed to create children documents."""
+    for i in range(depth):
+        if i == 0:
+            document = factories.DocumentFactory(link_reach=reach, link_role=role)
+        else:
+            document = factories.DocumentFactory(parent=document)
+
+    response = APIClient().post(
+        f"/api/v1.0/documents/{document.id!s}/children/",
+        {
+            "title": "my document",
+        },
+    )
+
+    assert Document.objects.count() == depth
+    assert response.status_code == 401
+    assert response.json() == {
+        "detail": "Authentication credentials were not provided."
+    }
+
+
+@pytest.mark.parametrize("depth", [1, 2, 3])
+@pytest.mark.parametrize(
+    "reach,role",
+    [
+        ["restricted", "editor"],
+        ["restricted", "reader"],
+        ["public", "reader"],
+        ["authenticated", "reader"],
+    ],
+)
+def test_api_documents_children_create_authenticated_forbidden(reach, role, depth):
+    """
+    Authenticated users with no write access on a document should not be allowed
+    to create a nested document.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    for i in range(depth):
+        if i == 0:
+            document = factories.DocumentFactory(link_reach=reach, link_role=role)
+        else:
+            document = factories.DocumentFactory(parent=document, link_role="reader")
+
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/children/",
+        {
+            "title": "my document",
+        },
+    )
+
+    assert response.status_code == 403
+    assert Document.objects.count() == depth
+
+
+@pytest.mark.parametrize("depth", [1, 2, 3])
+@pytest.mark.parametrize(
+    "reach,role",
+    [
+        ["public", "editor"],
+        ["authenticated", "editor"],
+    ],
+)
+def test_api_documents_children_create_authenticated_success(reach, role, depth):
+    """
+    Authenticated users with write access on a document should be able
+    to create a nested document.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    for i in range(depth):
+        if i == 0:
+            document = factories.DocumentFactory(link_reach=reach, link_role=role)
+        else:
+            document = factories.DocumentFactory(parent=document, link_role="reader")
+
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/children/",
+        {
+            "title": "my child",
+        },
+    )
+
+    assert response.status_code == 201
+
+    child = Document.objects.get(id=response.json()["id"])
+    assert child.title == "my child"
+    assert child.link_reach == "restricted"
+    assert child.accesses.filter(role="owner", user=user).exists()
+
+
+@pytest.mark.parametrize("depth", [1, 2, 3])
+def test_api_documents_children_create_related_forbidden(depth):
+    """
+    Authenticated users with a specific read access on a document should not be allowed
+    to create a nested document.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    for i in range(depth):
+        if i == 0:
+            document = factories.DocumentFactory(link_reach="restricted")
+            factories.UserDocumentAccessFactory(
+                user=user, document=document, role="reader"
+            )
+        else:
+            document = factories.DocumentFactory(
+                parent=document, link_reach="restricted"
+            )
+
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/children/",
+        {
+            "title": "my document",
+        },
+    )
+
+    assert response.status_code == 403
+    assert Document.objects.count() == depth
+
+
+@pytest.mark.parametrize("depth", [1, 2, 3])
+@pytest.mark.parametrize("role", ["editor", "administrator", "owner"])
+def test_api_documents_children_create_related_success(role, depth):
+    """
+    Authenticated users with a specific write access on a document should be
+    able to create a nested document.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    for i in range(depth):
+        if i == 0:
+            document = factories.DocumentFactory(link_reach="restricted")
+            factories.UserDocumentAccessFactory(user=user, document=document, role=role)
+        else:
+            document = factories.DocumentFactory(
+                parent=document, link_reach="restricted"
+            )
+
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/children/",
+        {
+            "title": "my child",
+        },
+    )
+
+    assert response.status_code == 201
+    child = Document.objects.get(id=response.json()["id"])
+    assert child.title == "my child"
+    assert child.link_reach == "restricted"
+    assert child.accesses.filter(role="owner", user=user).exists()
+
+
+def test_api_documents_children_create_authenticated_title_null():
+    """It should be possible to create several nested documents with a null title."""
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    parent = factories.DocumentFactory(
+        title=None, link_reach="authenticated", link_role="editor"
+    )
+    factories.DocumentFactory(title=None, parent=parent)
+
+    response = client.post(
+        f"/api/v1.0/documents/{parent.id!s}/children/", {}, format="json"
+    )
+
+    assert response.status_code == 201
+    assert Document.objects.filter(title__isnull=True).count() == 3
+
+
+def test_api_documents_children_create_force_id_success():
+    """It should be possible to force the document ID when creating a nested document."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    access = factories.UserDocumentAccessFactory(user=user, role="editor")
+    forced_id = uuid4()
+
+    response = client.post(
+        f"/api/v1.0/documents/{access.document.id!s}/children/",
+        {
+            "id": str(forced_id),
+            "title": "my document",
+        },
+        format="json",
+    )
+
+    assert response.status_code == 201
+    assert Document.objects.count() == 2
+    assert response.json()["id"] == str(forced_id)
+
+
+def test_api_documents_children_create_force_id_existing():
+    """
+    It should not be possible to use the ID of an existing document when forcing ID on creation.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    access = factories.UserDocumentAccessFactory(user=user, role="editor")
+    document = factories.DocumentFactory()
+
+    response = client.post(
+        f"/api/v1.0/documents/{access.document.id!s}/children/",
+        {
+            "id": str(document.id),
+            "title": "my document",
+        },
+        format="json",
+    )
+
+    assert response.status_code == 400
+    assert response.json() == {
+        "id": ["A document with this ID already exists. You cannot override it."]
+    }

src/backend/core/tests/documents/test_api_documents_children_list.py

@@ -0,0 +1,555 @@
+"""
+Tests for Documents API endpoint in impress's core app: children list
+"""
+
+import random
+
+from django.contrib.auth.models import AnonymousUser
+
+import pytest
+from rest_framework.test import APIClient
+
+from core import factories
+
+pytestmark = pytest.mark.django_db
+
+
+def test_api_documents_children_list_anonymous_public_standalone():
+    """Anonymous users should be allowed to retrieve the children of a public document."""
+    document = factories.DocumentFactory(link_reach="public")
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = APIClient().get(f"/api/v1.0/documents/{document.id!s}/children/")
+
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 2,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(AnonymousUser()),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 2,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": child2.get_abilities(AnonymousUser()),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 2,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 0,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+        ],
+    }
+
+
+def test_api_documents_children_list_anonymous_public_parent():
+    """
+    Anonymous users should be allowed to retrieve the children of a document who
+    has a public ancestor.
+    """
+    grand_parent = factories.DocumentFactory(link_reach="public")
+    parent = factories.DocumentFactory(
+        parent=grand_parent, link_reach=random.choice(["authenticated", "restricted"])
+    )
+    document = factories.DocumentFactory(
+        link_reach=random.choice(["authenticated", "restricted"]), parent=parent
+    )
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = APIClient().get(f"/api/v1.0/documents/{document.id!s}/children/")
+
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 2,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(AnonymousUser()),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 4,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": child2.get_abilities(AnonymousUser()),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 4,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 0,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+        ],
+    }
+
+
+@pytest.mark.parametrize("reach", ["restricted", "authenticated"])
+def test_api_documents_children_list_anonymous_restricted_or_authenticated(reach):
+    """
+    Anonymous users should not be able to retrieve children of a document that is not public.
+    """
+    document = factories.DocumentFactory(link_reach=reach)
+    factories.DocumentFactory.create_batch(2, parent=document)
+
+    response = APIClient().get(f"/api/v1.0/documents/{document.id!s}/children/")
+
+    assert response.status_code == 401
+    assert response.json() == {
+        "detail": "Authentication credentials were not provided."
+    }
+
+
+@pytest.mark.parametrize("reach", ["public", "authenticated"])
+def test_api_documents_children_list_authenticated_unrelated_public_or_authenticated(
+    reach,
+):
+    """
+    Authenticated users should be able to retrieve the children of a public/authenticated
+    document to which they are not related.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach=reach)
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/children/",
+    )
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 2,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(user),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 2,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": child2.get_abilities(user),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 2,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 0,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+        ],
+    }
+
+
+@pytest.mark.parametrize("reach", ["public", "authenticated"])
+def test_api_documents_children_list_authenticated_public_or_authenticated_parent(
+    reach,
+):
+    """
+    Authenticated users should be allowed to retrieve the children of a document who
+    has a public or authenticated ancestor.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory(link_reach=reach)
+    parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+    document = factories.DocumentFactory(link_reach="restricted", parent=parent)
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/children/")
+
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 2,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(user),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 4,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": child2.get_abilities(user),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 4,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 0,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+        ],
+    }
+
+
+def test_api_documents_children_list_authenticated_unrelated_restricted():
+    """
+    Authenticated users should not be allowed to retrieve the children of a document that is
+    restricted and to which they are not related.
+    """
+    user = factories.UserFactory(with_owned_document=True)
+
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach="restricted")
+    child1, _child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/children/",
+    )
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+
+def test_api_documents_children_list_authenticated_related_direct():
+    """
+    Authenticated users should be allowed to retrieve the children of a document
+    to which they are directly related whatever the role.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory()
+    access = factories.UserDocumentAccessFactory(document=document, user=user)
+    factories.UserDocumentAccessFactory(document=document)
+
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/children/",
+    )
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 2,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(user),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 2,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 3,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [access.role],
+            },
+            {
+                "abilities": child2.get_abilities(user),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 2,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 2,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [access.role],
+            },
+        ],
+    }
+
+
+def test_api_documents_children_list_authenticated_related_parent():
+    """
+    Authenticated users should be allowed to retrieve the children of a document if they
+    are related to one of its ancestors whatever the role.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory(link_reach="restricted")
+    parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+    document = factories.DocumentFactory(parent=parent, link_reach="restricted")
+
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    factories.UserDocumentAccessFactory(document=child1)
+
+    grand_parent_access = factories.UserDocumentAccessFactory(
+        document=grand_parent, user=user
+    )
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/children/",
+    )
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 2,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(user),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 4,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 2,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [grand_parent_access.role],
+            },
+            {
+                "abilities": child2.get_abilities(user),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 4,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [grand_parent_access.role],
+            },
+        ],
+    }
+
+
+def test_api_documents_children_list_authenticated_related_child():
+    """
+    Authenticated users should not be allowed to retrieve all the children of a document
+    as a result of being related to one of its children.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach="restricted")
+    child1, _child2 = factories.DocumentFactory.create_batch(2, parent=document)
+
+    factories.UserDocumentAccessFactory(document=child1, user=user)
+    factories.UserDocumentAccessFactory(document=document)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/children/",
+    )
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+
+def test_api_documents_children_list_authenticated_related_team_none(mock_user_teams):
+    """
+    Authenticated users should not be able to retrieve the children of a restricted document
+    related to teams in which the user is not.
+    """
+    mock_user_teams.return_value = []
+
+    user = factories.UserFactory(with_owned_document=True)
+
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach="restricted")
+    factories.DocumentFactory.create_batch(2, parent=document)
+
+    factories.TeamDocumentAccessFactory(document=document, team="myteam")
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/children/")
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+
+def test_api_documents_children_list_authenticated_related_team_members(
+    mock_user_teams,
+):
+    """
+    Authenticated users should be allowed to retrieve the children of a document to which they
+    are related via a team whatever the role.
+    """
+    mock_user_teams.return_value = ["myteam"]
+
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach="restricted")
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+
+    access = factories.TeamDocumentAccessFactory(document=document, team="myteam")
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/children/")
+
+    # pylint: disable=R0801
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 2,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(user),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 2,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [access.role],
+            },
+            {
+                "abilities": child2.get_abilities(user),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 2,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [access.role],
+            },
+        ],
+    }

src/backend/core/tests/documents/test_api_documents_cors_proxy.py

@@ -0,0 +1,121 @@
+"""Test on the CORS proxy API for documents."""
+
+import pytest
+import responses
+from rest_framework.test import APIClient
+
+from core import factories
+
+pytestmark = pytest.mark.django_db
+
+
+@responses.activate
+def test_api_docs_cors_proxy_valid_url():
+    """Test the CORS proxy API for documents with a valid URL."""
+    document = factories.DocumentFactory(link_reach="public")
+
+    client = APIClient()
+    url_to_fetch = "https://external-url.com/assets/logo-gouv.png"
+    responses.get(url_to_fetch, body=b"", status=200, content_type="image/png")
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/cors-proxy/?url={url_to_fetch}"
+    )
+    assert response.status_code == 200
+    assert response.headers["Content-Type"] == "image/png"
+    assert response.headers["Content-Disposition"] == "attachment;"
+    assert (
+        response.headers["Content-Security-Policy"]
+        == "default-src 'none'; img-src 'none' data:;"
+    )
+    assert response.streaming_content
+
+
+def test_api_docs_cors_proxy_without_url_query_string():
+    """Test the CORS proxy API for documents without a URL query string."""
+    document = factories.DocumentFactory(link_reach="public")
+
+    client = APIClient()
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/cors-proxy/")
+    assert response.status_code == 400
+    assert response.json() == {"detail": "Missing 'url' query parameter"}
+
+
+@responses.activate
+def test_api_docs_cors_proxy_anonymous_document_not_public():
+    """Test the CORS proxy API for documents with an anonymous user and a non-public document."""
+    document = factories.DocumentFactory(link_reach="authenticated")
+
+    client = APIClient()
+    url_to_fetch = "https://external-url.com/assets/logo-gouv.png"
+    responses.get(url_to_fetch, body=b"", status=200, content_type="image/png")
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/cors-proxy/?url={url_to_fetch}"
+    )
+    assert response.status_code == 401
+    assert response.json() == {
+        "detail": "Authentication credentials were not provided."
+    }
+
+
+@responses.activate
+def test_api_docs_cors_proxy_authenticated_user_accessing_protected_doc():
+    """
+    Test the CORS proxy API for documents with an authenticated user accessing a protected
+    document.
+    """
+    document = factories.DocumentFactory(link_reach="authenticated")
+
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+    url_to_fetch = "https://external-url.com/assets/logo-gouv.png"
+    responses.get(url_to_fetch, body=b"", status=200, content_type="image/png")
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/cors-proxy/?url={url_to_fetch}"
+    )
+    assert response.status_code == 200
+    assert response.headers["Content-Type"] == "image/png"
+    assert response.headers["Content-Disposition"] == "attachment;"
+    assert (
+        response.headers["Content-Security-Policy"]
+        == "default-src 'none'; img-src 'none' data:;"
+    )
+    assert response.streaming_content
+
+
+@responses.activate
+def test_api_docs_cors_proxy_authenticated_not_accessing_restricted_doc():
+    """
+    Test the CORS proxy API for documents with an authenticated user not accessing a restricted
+    document.
+    """
+    document = factories.DocumentFactory(link_reach="restricted")
+
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+    url_to_fetch = "https://external-url.com/assets/logo-gouv.png"
+    responses.get(url_to_fetch, body=b"", status=200, content_type="image/png")
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/cors-proxy/?url={url_to_fetch}"
+    )
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+
+@responses.activate
+def test_api_docs_cors_proxy_unsupported_media_type():
+    """Test the CORS proxy API for documents with an unsupported media type."""
+    document = factories.DocumentFactory(link_reach="public")
+
+    client = APIClient()
+    url_to_fetch = "https://external-url.com/assets/index.html"
+    responses.get(url_to_fetch, body=b"", status=200, content_type="text/html")
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/cors-proxy/?url={url_to_fetch}"
+    )
+    assert response.status_code == 415

src/backend/core/tests/documents/test_api_documents_delete.py

@@ -77,6 +77,37 @@ def test_api_documents_delete_authenticated_not_owner(via, role, mock_user_teams
     assert models.Document.objects.count() == 2
 
 
+@pytest.mark.parametrize("depth", [1, 2, 3])
+def test_api_documents_delete_authenticated_owner_of_ancestor(depth):
+    """
+    Authenticated users should not be able to delete a document for which
+    they are only owner of an ancestor.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    documents = []
+    for i in range(depth):
+        documents.append(
+            factories.UserDocumentAccessFactory(role="owner", user=user).document
+            if i == 0
+            else factories.DocumentFactory(parent=documents[-1])
+        )
+    assert models.Document.objects.count() == depth
+
+    response = client.delete(
+        f"/api/v1.0/documents/{documents[-1].id}/",
+    )
+
+    assert response.status_code == 204
+
+    # Make sure it is only a soft delete
+    assert models.Document.objects.count() == depth
+    assert models.Document.objects.filter(deleted_at__isnull=True).count() == depth - 1
+    assert models.Document.objects.filter(deleted_at__isnull=False).count() == 1
+
+
 @pytest.mark.parametrize("via", VIA)
 def test_api_documents_delete_authenticated_owner(via, mock_user_teams):
     """
@@ -101,4 +132,8 @@ def test_api_documents_delete_authenticated_owner(via, mock_user_teams):
     )
 
     assert response.status_code == 204
-    assert models.Document.objects.exists() is False
+
+    # Make sure it is only a soft delete
+    assert models.Document.objects.count() == 1
+    assert models.Document.objects.filter(deleted_at__isnull=True).exists() is False
+    assert models.Document.objects.filter(deleted_at__isnull=False).count() == 1

src/backend/core/tests/documents/test_api_documents_descendants.py

@@ -0,0 +1,696 @@
+"""
+Tests for Documents API endpoint in impress's core app: descendants
+"""
+
+import random
+
+from django.contrib.auth.models import AnonymousUser
+
+import pytest
+from rest_framework.test import APIClient
+
+from core import factories
+
+pytestmark = pytest.mark.django_db
+
+
+def test_api_documents_descendants_list_anonymous_public_standalone():
+    """Anonymous users should be allowed to retrieve the descendants of a public document."""
+    document = factories.DocumentFactory(link_reach="public")
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    grand_child = factories.DocumentFactory(parent=child1)
+
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = APIClient().get(f"/api/v1.0/documents/{document.id!s}/descendants/")
+
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 3,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(AnonymousUser()),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 2,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 1,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": grand_child.get_abilities(AnonymousUser()),
+                "created_at": grand_child.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(grand_child.creator.id),
+                "depth": 3,
+                "excerpt": grand_child.excerpt,
+                "id": str(grand_child.id),
+                "is_favorite": False,
+                "link_reach": grand_child.link_reach,
+                "link_role": grand_child.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": grand_child.path,
+                "title": grand_child.title,
+                "updated_at": grand_child.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": child2.get_abilities(AnonymousUser()),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 2,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 0,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+        ],
+    }
+
+
+def test_api_documents_descendants_list_anonymous_public_parent():
+    """
+    Anonymous users should be allowed to retrieve the descendants of a document who
+    has a public ancestor.
+    """
+    grand_parent = factories.DocumentFactory(link_reach="public")
+    parent = factories.DocumentFactory(
+        parent=grand_parent, link_reach=random.choice(["authenticated", "restricted"])
+    )
+    document = factories.DocumentFactory(
+        link_reach=random.choice(["authenticated", "restricted"]), parent=parent
+    )
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    grand_child = factories.DocumentFactory(parent=child1)
+
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = APIClient().get(f"/api/v1.0/documents/{document.id!s}/descendants/")
+
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 3,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(AnonymousUser()),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 4,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 1,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": grand_child.get_abilities(AnonymousUser()),
+                "created_at": grand_child.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(grand_child.creator.id),
+                "depth": 5,
+                "excerpt": grand_child.excerpt,
+                "id": str(grand_child.id),
+                "is_favorite": False,
+                "link_reach": grand_child.link_reach,
+                "link_role": grand_child.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": grand_child.path,
+                "title": grand_child.title,
+                "updated_at": grand_child.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": child2.get_abilities(AnonymousUser()),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 4,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 0,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+        ],
+    }
+
+
+@pytest.mark.parametrize("reach", ["restricted", "authenticated"])
+def test_api_documents_descendants_list_anonymous_restricted_or_authenticated(reach):
+    """
+    Anonymous users should not be able to retrieve descendants of a document that is not public.
+    """
+    document = factories.DocumentFactory(link_reach=reach)
+    child = factories.DocumentFactory(parent=document)
+    _grand_child = factories.DocumentFactory(parent=child)
+
+    response = APIClient().get(f"/api/v1.0/documents/{document.id!s}/descendants/")
+
+    assert response.status_code == 401
+    assert response.json() == {
+        "detail": "Authentication credentials were not provided."
+    }
+
+
+@pytest.mark.parametrize("reach", ["public", "authenticated"])
+def test_api_documents_descendants_list_authenticated_unrelated_public_or_authenticated(
+    reach,
+):
+    """
+    Authenticated users should be able to retrieve the descendants of a public/authenticated
+    document to which they are not related.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach=reach)
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    grand_child = factories.DocumentFactory(parent=child1)
+
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/descendants/",
+    )
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 3,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(user),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 2,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 1,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": grand_child.get_abilities(user),
+                "created_at": grand_child.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(grand_child.creator.id),
+                "depth": 3,
+                "excerpt": grand_child.excerpt,
+                "id": str(grand_child.id),
+                "is_favorite": False,
+                "link_reach": grand_child.link_reach,
+                "link_role": grand_child.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": grand_child.path,
+                "title": grand_child.title,
+                "updated_at": grand_child.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": child2.get_abilities(user),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 2,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 0,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+        ],
+    }
+
+
+@pytest.mark.parametrize("reach", ["public", "authenticated"])
+def test_api_documents_descendants_list_authenticated_public_or_authenticated_parent(
+    reach,
+):
+    """
+    Authenticated users should be allowed to retrieve the descendants of a document who
+    has a public or authenticated ancestor.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory(link_reach=reach)
+    parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+    document = factories.DocumentFactory(link_reach="restricted", parent=parent)
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    grand_child = factories.DocumentFactory(parent=child1)
+
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/descendants/")
+
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 3,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(user),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 4,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 1,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": grand_child.get_abilities(user),
+                "created_at": grand_child.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(grand_child.creator.id),
+                "depth": 5,
+                "excerpt": grand_child.excerpt,
+                "id": str(grand_child.id),
+                "is_favorite": False,
+                "link_reach": grand_child.link_reach,
+                "link_role": grand_child.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": grand_child.path,
+                "title": grand_child.title,
+                "updated_at": grand_child.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+            {
+                "abilities": child2.get_abilities(user),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 4,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 0,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [],
+            },
+        ],
+    }
+
+
+def test_api_documents_descendants_list_authenticated_unrelated_restricted():
+    """
+    Authenticated users should not be allowed to retrieve the descendants of a document that is
+    restricted and to which they are not related.
+    """
+    user = factories.UserFactory(with_owned_document=True)
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach="restricted")
+    child1, _child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    _grand_child = factories.DocumentFactory(parent=child1)
+
+    factories.UserDocumentAccessFactory(document=child1)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/descendants/",
+    )
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+
+def test_api_documents_descendants_list_authenticated_related_direct():
+    """
+    Authenticated users should be allowed to retrieve the descendants of a document
+    to which they are directly related whatever the role.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory()
+    access = factories.UserDocumentAccessFactory(document=document, user=user)
+    factories.UserDocumentAccessFactory(document=document)
+
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    factories.UserDocumentAccessFactory(document=child1)
+
+    grand_child = factories.DocumentFactory(parent=child1)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/descendants/",
+    )
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 3,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(user),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 2,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 1,
+                "nb_accesses_ancestors": 3,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [access.role],
+            },
+            {
+                "abilities": grand_child.get_abilities(user),
+                "created_at": grand_child.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(grand_child.creator.id),
+                "depth": 3,
+                "excerpt": grand_child.excerpt,
+                "id": str(grand_child.id),
+                "is_favorite": False,
+                "link_reach": grand_child.link_reach,
+                "link_role": grand_child.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 3,
+                "nb_accesses_direct": 0,
+                "path": grand_child.path,
+                "title": grand_child.title,
+                "updated_at": grand_child.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [access.role],
+            },
+            {
+                "abilities": child2.get_abilities(user),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 2,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 2,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [access.role],
+            },
+        ],
+    }
+
+
+def test_api_documents_descendants_list_authenticated_related_parent():
+    """
+    Authenticated users should be allowed to retrieve the descendants of a document if they
+    are related to one of its ancestors whatever the role.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory(link_reach="restricted")
+    grand_parent_access = factories.UserDocumentAccessFactory(
+        document=grand_parent, user=user
+    )
+
+    parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+    document = factories.DocumentFactory(parent=parent, link_reach="restricted")
+
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    factories.UserDocumentAccessFactory(document=child1)
+
+    grand_child = factories.DocumentFactory(parent=child1)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/descendants/",
+    )
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 3,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(user),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 4,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 1,
+                "nb_accesses_ancestors": 2,
+                "nb_accesses_direct": 1,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [grand_parent_access.role],
+            },
+            {
+                "abilities": grand_child.get_abilities(user),
+                "created_at": grand_child.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(grand_child.creator.id),
+                "depth": 5,
+                "excerpt": grand_child.excerpt,
+                "id": str(grand_child.id),
+                "is_favorite": False,
+                "link_reach": grand_child.link_reach,
+                "link_role": grand_child.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 2,
+                "nb_accesses_direct": 0,
+                "path": grand_child.path,
+                "title": grand_child.title,
+                "updated_at": grand_child.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [grand_parent_access.role],
+            },
+            {
+                "abilities": child2.get_abilities(user),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 4,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [grand_parent_access.role],
+            },
+        ],
+    }
+
+
+def test_api_documents_descendants_list_authenticated_related_child():
+    """
+    Authenticated users should not be allowed to retrieve all the descendants of a document
+    as a result of being related to one of its children.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach="restricted")
+    child1, _child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    _grand_child = factories.DocumentFactory(parent=child1)
+
+    factories.UserDocumentAccessFactory(document=child1, user=user)
+    factories.UserDocumentAccessFactory(document=document)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/descendants/",
+    )
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+
+def test_api_documents_descendants_list_authenticated_related_team_none(
+    mock_user_teams,
+):
+    """
+    Authenticated users should not be able to retrieve the descendants of a restricted document
+    related to teams in which the user is not.
+    """
+    mock_user_teams.return_value = []
+
+    user = factories.UserFactory(with_owned_document=True)
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach="restricted")
+    factories.DocumentFactory.create_batch(2, parent=document)
+
+    factories.TeamDocumentAccessFactory(document=document, team="myteam")
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/descendants/")
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+
+def test_api_documents_descendants_list_authenticated_related_team_members(
+    mock_user_teams,
+):
+    """
+    Authenticated users should be allowed to retrieve the descendants of a document to which they
+    are related via a team whatever the role.
+    """
+    mock_user_teams.return_value = ["myteam"]
+
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach="restricted")
+    child1, child2 = factories.DocumentFactory.create_batch(2, parent=document)
+    grand_child = factories.DocumentFactory(parent=child1)
+
+    access = factories.TeamDocumentAccessFactory(document=document, team="myteam")
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/descendants/")
+
+    # pylint: disable=R0801
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 3,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": child1.get_abilities(user),
+                "created_at": child1.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child1.creator.id),
+                "depth": 2,
+                "excerpt": child1.excerpt,
+                "id": str(child1.id),
+                "is_favorite": False,
+                "link_reach": child1.link_reach,
+                "link_role": child1.link_role,
+                "numchild": 1,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": child1.path,
+                "title": child1.title,
+                "updated_at": child1.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [access.role],
+            },
+            {
+                "abilities": grand_child.get_abilities(user),
+                "created_at": grand_child.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(grand_child.creator.id),
+                "depth": 3,
+                "excerpt": grand_child.excerpt,
+                "id": str(grand_child.id),
+                "is_favorite": False,
+                "link_reach": grand_child.link_reach,
+                "link_role": grand_child.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": grand_child.path,
+                "title": grand_child.title,
+                "updated_at": grand_child.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [access.role],
+            },
+            {
+                "abilities": child2.get_abilities(user),
+                "created_at": child2.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(child2.creator.id),
+                "depth": 2,
+                "excerpt": child2.excerpt,
+                "id": str(child2.id),
+                "is_favorite": False,
+                "link_reach": child2.link_reach,
+                "link_role": child2.link_role,
+                "numchild": 0,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 0,
+                "path": child2.path,
+                "title": child2.title,
+                "updated_at": child2.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": [access.role],
+            },
+        ],
+    }

src/backend/core/tests/documents/test_api_documents_descendants_filters.py

@@ -0,0 +1,88 @@
+"""
+Tests for Documents API endpoint in impress's core app: list
+"""
+
+import pytest
+from faker import Faker
+from rest_framework.test import APIClient
+
+from core import factories
+
+fake = Faker()
+pytestmark = pytest.mark.django_db
+
+
+# Filters: unknown field
+
+
+def test_api_documents_descendants_filter_unknown_field():
+    """
+    Trying to filter by an unknown field should be ignored.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.DocumentFactory()
+
+    document = factories.DocumentFactory(users=[user])
+    expected_ids = {
+        str(document.id)
+        for document in factories.DocumentFactory.create_batch(2, parent=document)
+    }
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/descendants/?unknown=true"
+    )
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == 2
+    assert {result["id"] for result in results} == expected_ids
+
+
+# Filters: title
+
+
+@pytest.mark.parametrize(
+    "query,nb_results",
+    [
+        ("Project Alpha", 1),  # Exact match
+        ("project", 2),  # Partial match (case-insensitive)
+        ("Guide", 1),  # Word match within a title
+        ("Special", 0),  # No match (nonexistent keyword)
+        ("2024", 2),  # Match by numeric keyword
+        ("", 5),  # Empty string
+    ],
+)
+def test_api_documents_descendants_filter_title(query, nb_results):
+    """Authenticated users should be able to search documents by their title."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(users=[user])
+
+    # Create documents with predefined titles
+    titles = [
+        "Project Alpha Documentation",
+        "Project Beta Overview",
+        "User Guide",
+        "Financial Report 2024",
+        "Annual Review 2024",
+    ]
+    for title in titles:
+        factories.DocumentFactory(title=title, parent=document)
+
+    # Perform the search query
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/descendants/?title={query:s}"
+    )
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == nb_results
+
+    # Ensure all results contain the query in their title
+    for result in results:
+        assert query.lower().strip() in result["title"].lower()

src/backend/core/tests/documents/test_api_documents_favorite_list.py

@@ -0,0 +1,80 @@
+"""Test for the document favorite_list endpoint."""
+
+import pytest
+from rest_framework.test import APIClient
+
+from core import factories, models
+
+pytestmark = pytest.mark.django_db
+
+
+def test_api_document_favorite_list_anonymous():
+    """Anonymous users should receive a 401 error."""
+    client = APIClient()
+
+    response = client.get("/api/v1.0/documents/favorite_list/")
+
+    assert response.status_code == 401
+
+
+def test_api_document_favorite_list_authenticated_no_favorite():
+    """Authenticated users should receive an empty list."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    response = client.get("/api/v1.0/documents/favorite_list/")
+
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 0,
+        "next": None,
+        "previous": None,
+        "results": [],
+    }
+
+
+def test_api_document_favorite_list_authenticated_with_favorite():
+    """Authenticated users with a favorite should receive the favorite."""
+
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    # User don't have access to this document, let say it had access and this access has been
+    # removed. It should not be in the favorite list anymore.
+    factories.DocumentFactory(favorited_by=[user])
+
+    document = factories.UserDocumentAccessFactory(
+        user=user, role=models.RoleChoices.READER, document__favorited_by=[user]
+    ).document
+
+    response = client.get("/api/v1.0/documents/favorite_list/")
+
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 1,
+        "next": None,
+        "previous": None,
+        "results": [
+            {
+                "abilities": document.get_abilities(user),
+                "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
+                "creator": str(document.creator.id),
+                "content": document.content,
+                "depth": document.depth,
+                "excerpt": document.excerpt,
+                "id": str(document.id),
+                "is_favorite": True,
+                "link_reach": document.link_reach,
+                "link_role": document.link_role,
+                "nb_accesses_ancestors": 1,
+                "nb_accesses_direct": 1,
+                "numchild": document.numchild,
+                "path": document.path,
+                "title": document.title,
+                "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+                "user_roles": ["reader"],
+            }
+        ],
+    }

src/backend/core/tests/documents/test_api_documents_list.py

@@ -2,10 +2,11 @@
 Tests for Documents API endpoint in impress's core app: list
 """
 
-import operator
 import random
+from datetime import timedelta
 from unittest import mock
-from urllib.parse import urlencode
+
+from django.utils import timezone
 
 import pytest
 from faker import Faker
@@ -23,7 +24,7 @@ pytestmark = pytest.mark.django_db
 def test_api_documents_list_anonymous(reach, role):
     """
     Anonymous users should not be allowed to list documents whatever the
-    link reach and the role
+    link reach and link role
     """
     factories.DocumentFactory(link_reach=reach, link_role=role)
 
@@ -37,16 +38,16 @@ def test_api_documents_list_anonymous(reach, role):
 def test_api_documents_list_format():
     """Validate the format of documents as returned by the list view."""
     user = factories.UserFactory()
-
     client = APIClient()
     client.force_login(user)
 
     other_users = factories.UserFactory.create_batch(3)
     document = factories.DocumentFactory(
-        users=[user, *factories.UserFactory.create_batch(2)],
+        users=factories.UserFactory.create_batch(2),
         favorited_by=[user, *other_users],
         link_traces=other_users,
     )
+    access = factories.UserDocumentAccessFactory(document=document, user=user)
 
     response = client.get("/api/v1.0/documents/")
 
@@ -62,18 +63,24 @@ def test_api_documents_list_format():
     assert results[0] == {
         "id": str(document.id),
         "abilities": document.get_abilities(user),
-        "content": document.content,
         "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
         "creator": str(document.creator.id),
+        "depth": 1,
+        "excerpt": document.excerpt,
         "is_favorite": True,
         "link_reach": document.link_reach,
         "link_role": document.link_role,
-        "nb_accesses": 3,
+        "nb_accesses_ancestors": 3,
+        "nb_accesses_direct": 3,
+        "numchild": 0,
+        "path": document.path,
         "title": document.title,
         "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": [access.role],
     }
 
 
+# pylint: disable=too-many-locals
 def test_api_documents_list_authenticated_direct(django_assert_num_queries):
     """
     Authenticated users should be able to list documents they are a direct
@@ -81,11 +88,10 @@ def test_api_documents_list_authenticated_direct(django_assert_num_queries):
     than restricted.
     """
     user = factories.UserFactory()
-
     client = APIClient()
     client.force_login(user)
 
-    documents = [
+    document1, document2 = [
         access.document
         for access in factories.UserDocumentAccessFactory.create_batch(2, user=user)
     ]
@@ -95,16 +101,64 @@ def test_api_documents_list_authenticated_direct(django_assert_num_queries):
         for role in models.LinkRoleChoices:
             factories.DocumentFactory(link_reach=reach, link_role=role)
 
-    expected_ids = {str(document.id) for document in documents}
+    # Children of visible documents should not get listed even with a specific access
+    factories.DocumentFactory(parent=document1)
 
-    with django_assert_num_queries(3):
+    child1_with_access = factories.DocumentFactory(parent=document1)
+    factories.UserDocumentAccessFactory(user=user, document=child1_with_access)
+
+    middle_document = factories.DocumentFactory(parent=document2)
+    child2_with_access = factories.DocumentFactory(parent=middle_document)
+    factories.UserDocumentAccessFactory(user=user, document=child2_with_access)
+
+    # Children of hidden documents should get listed when visible by the logged-in user
+    hidden_root = factories.DocumentFactory()
+    child3_with_access = factories.DocumentFactory(parent=hidden_root)
+    factories.UserDocumentAccessFactory(user=user, document=child3_with_access)
+    child4_with_access = factories.DocumentFactory(parent=hidden_root)
+    factories.UserDocumentAccessFactory(user=user, document=child4_with_access)
+
+    # Documents that are soft deleted and children of a soft deleted document should not be listed
+    soft_deleted_document = factories.DocumentFactory(users=[user])
+    child_of_soft_deleted_document = factories.DocumentFactory(
+        users=[user],
+        parent=soft_deleted_document,
+    )
+    factories.DocumentFactory(users=[user], parent=child_of_soft_deleted_document)
+    soft_deleted_document.soft_delete()
+
+    # Documents that are permanently deleted and children of a permanently deleted
+    # document should not be listed
+    permanently_deleted_document = factories.DocumentFactory(users=[user])
+    child_of_permanently_deleted_document = factories.DocumentFactory(
+        users=[user], parent=permanently_deleted_document
+    )
+    factories.DocumentFactory(
+        users=[user], parent=child_of_permanently_deleted_document
+    )
+
+    fourty_days_ago = timezone.now() - timedelta(days=40)
+    with mock.patch("django.utils.timezone.now", return_value=fourty_days_ago):
+        permanently_deleted_document.soft_delete()
+
+    expected_ids = {
+        str(document1.id),
+        str(document2.id),
+        str(child3_with_access.id),
+        str(child4_with_access.id),
+    }
+
+    with django_assert_num_queries(12):
+        response = client.get("/api/v1.0/documents/")
+
+    # nb_accesses should now be cached
+    with django_assert_num_queries(4):
         response = client.get("/api/v1.0/documents/")
 
     assert response.status_code == 200
     results = response.json()["results"]
-    assert len(results) == 2
-    results_id = {result["id"] for result in results}
-    assert expected_ids == results_id
+    results_ids = {result["id"] for result in results}
+    assert expected_ids == results_ids
 
 
 def test_api_documents_list_authenticated_via_team(
@@ -132,7 +186,11 @@ def test_api_documents_list_authenticated_via_team(
 
     expected_ids = {str(document.id) for document in documents_team1 + documents_team2}
 
-    with django_assert_num_queries(3):
+    with django_assert_num_queries(14):
+        response = client.get("/api/v1.0/documents/")
+
+    # nb_accesses should now be cached
+    with django_assert_num_queries(4):
         response = client.get("/api/v1.0/documents/")
 
     assert response.status_code == 200
@@ -161,10 +219,12 @@ def test_api_documents_list_authenticated_link_reach_restricted(
     other_document = factories.DocumentFactory(link_reach="public")
     models.LinkTrace.objects.create(document=other_document, user=user)
 
-    with django_assert_num_queries(3):
-        response = client.get(
-            "/api/v1.0/documents/",
-        )
+    with django_assert_num_queries(6):
+        response = client.get("/api/v1.0/documents/")
+
+    # nb_accesses should now be cached
+    with django_assert_num_queries(4):
+        response = client.get("/api/v1.0/documents/")
 
     assert response.status_code == 200
     results = response.json()["results"]
@@ -186,21 +246,37 @@ def test_api_documents_list_authenticated_link_reach_public_or_authenticated(
     client = APIClient()
     client.force_login(user)
 
-    documents = [
+    document1, document2 = [
         factories.DocumentFactory(link_traces=[user], link_reach=reach)
         for reach in models.LinkReachChoices
         if reach != "restricted"
     ]
-    expected_ids = {str(document.id) for document in documents}
+    factories.DocumentFactory(
+        link_reach=random.choice(["public", "authenticated"]),
+        link_traces=[user],
+        parent=document1,
+    )
 
-    with django_assert_num_queries(3):
-        response = client.get(
-            "/api/v1.0/documents/",
-        )
+    hidden_document = factories.DocumentFactory(
+        link_reach=random.choice(["public", "authenticated"])
+    )
+    visible_child = factories.DocumentFactory(
+        link_traces=[user],
+        link_reach=random.choice(["public", "authenticated"]),
+        parent=hidden_document,
+    )
+
+    expected_ids = {str(document1.id), str(document2.id), str(visible_child.id)}
+
+    with django_assert_num_queries(10):
+        response = client.get("/api/v1.0/documents/")
+
+    # nb_accesses should now be cached
+    with django_assert_num_queries(4):
+        response = client.get("/api/v1.0/documents/")
 
     assert response.status_code == 200
     results = response.json()["results"]
-    assert len(results) == 2
     results_id = {result["id"] for result in results}
     assert expected_ids == results_id
 
@@ -253,6 +329,35 @@ def test_api_documents_list_pagination(
     assert document_ids == []
 
 
+def test_api_documents_list_pagination_force_page_size():
+    """Page size can be set via querystring."""
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    document_ids = [
+        str(access.document_id)
+        for access in factories.UserDocumentAccessFactory.create_batch(3, user=user)
+    ]
+
+    # Force page size
+    response = client.get(
+        "/api/v1.0/documents/?page_size=2",
+    )
+
+    assert response.status_code == 200
+    content = response.json()
+
+    assert content["count"] == 3
+    assert content["next"] == "http://testserver/api/v1.0/documents/?page=2&page_size=2"
+    assert content["previous"] is None
+
+    assert len(content["results"]) == 2
+    for item in content["results"]:
+        document_ids.remove(item["id"])
+
+
 def test_api_documents_list_authenticated_distinct():
     """A document with several related users should only be listed once."""
     user = factories.UserFactory()
@@ -287,7 +392,11 @@ def test_api_documents_list_favorites_no_extra_queries(django_assert_num_queries
     factories.DocumentFactory.create_batch(2, users=[user])
 
     url = "/api/v1.0/documents/"
-    with django_assert_num_queries(3):
+    with django_assert_num_queries(14):
+        response = client.get(url)
+
+    # nb_accesses should now be cached
+    with django_assert_num_queries(4):
         response = client.get(url)
 
     assert response.status_code == 200
@@ -300,7 +409,7 @@ def test_api_documents_list_favorites_no_extra_queries(django_assert_num_queries
     for document in special_documents:
         models.DocumentFavorite.objects.create(document=document, user=user)
 
-    with django_assert_num_queries(3):
+    with django_assert_num_queries(4):
         response = client.get(url)
 
     assert response.status_code == 200
@@ -314,361 +423,3 @@ def test_api_documents_list_favorites_no_extra_queries(django_assert_num_queries
             assert result["is_favorite"] is True
         else:
             assert result["is_favorite"] is False
-
-
-def test_api_documents_list_filter_and_access_rights():
-    """Filtering on querystring parameters should respect access rights."""
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    other_user = factories.UserFactory()
-
-    def random_favorited_by():
-        return random.choice([[], [user], [other_user]])
-
-    # Documents that should be listed to this user
-    listed_documents = [
-        factories.DocumentFactory(
-            link_reach="public",
-            link_traces=[user],
-            favorited_by=random_favorited_by(),
-            creator=random.choice([user, other_user]),
-        ),
-        factories.DocumentFactory(
-            link_reach="authenticated",
-            link_traces=[user],
-            favorited_by=random_favorited_by(),
-            creator=random.choice([user, other_user]),
-        ),
-        factories.DocumentFactory(
-            link_reach="restricted",
-            users=[user],
-            favorited_by=random_favorited_by(),
-            creator=random.choice([user, other_user]),
-        ),
-    ]
-    listed_ids = [str(doc.id) for doc in listed_documents]
-    word_list = [word for doc in listed_documents for word in doc.title.split(" ")]
-
-    # Documents that should not be listed to this user
-    factories.DocumentFactory(
-        link_reach="public",
-        favorited_by=random_favorited_by(),
-        creator=random.choice([user, other_user]),
-    )
-    factories.DocumentFactory(
-        link_reach="authenticated",
-        favorited_by=random_favorited_by(),
-        creator=random.choice([user, other_user]),
-    )
-    factories.DocumentFactory(
-        link_reach="restricted",
-        favorited_by=random_favorited_by(),
-        creator=random.choice([user, other_user]),
-    )
-    factories.DocumentFactory(
-        link_reach="restricted",
-        link_traces=[user],
-        favorited_by=random_favorited_by(),
-        creator=random.choice([user, other_user]),
-    )
-
-    filters = {
-        "link_reach": random.choice([None, *models.LinkReachChoices.values]),
-        "title": random.choice([None, *word_list]),
-        "favorite": random.choice([None, True, False]),
-        "creator": random.choice([None, user, other_user]),
-        "ordering": random.choice(
-            [
-                None,
-                "created_at",
-                "-created_at",
-                "is_favorite",
-                "-is_favorite",
-                "nb_accesses",
-                "-nb_accesses",
-                "title",
-                "-title",
-                "updated_at",
-                "-updated_at",
-            ]
-        ),
-    }
-    query_params = {key: value for key, value in filters.items() if value is not None}
-    querystring = urlencode(query_params)
-
-    response = client.get(f"/api/v1.0/documents/?{querystring:s}")
-
-    assert response.status_code == 200
-    results = response.json()["results"]
-
-    # Ensure all documents in results respect expected access rights
-    for result in results:
-        assert result["id"] in listed_ids
-
-
-# Filters: ordering
-
-
-def test_api_documents_list_ordering_default():
-    """Documents should be ordered by descending "updated_at" by default"""
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    factories.DocumentFactory.create_batch(5, users=[user])
-
-    response = client.get("/api/v1.0/documents/")
-
-    assert response.status_code == 200
-    results = response.json()["results"]
-    assert len(results) == 5
-
-    # Check that results are sorted by descending "updated_at" as expected
-    for i in range(4):
-        assert operator.ge(results[i]["updated_at"], results[i + 1]["updated_at"])
-
-
-def test_api_documents_list_ordering_by_fields():
-    """It should be possible to order by several fields"""
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    factories.DocumentFactory.create_batch(5, users=[user])
-
-    for parameter in [
-        "created_at",
-        "-created_at",
-        "is_favorite",
-        "-is_favorite",
-        "nb_accesses",
-        "-nb_accesses",
-        "title",
-        "-title",
-        "updated_at",
-        "-updated_at",
-    ]:
-        is_descending = parameter.startswith("-")
-        field = parameter.lstrip("-")
-        querystring = f"?ordering={parameter}"
-
-        response = client.get(f"/api/v1.0/documents/{querystring:s}")
-        assert response.status_code == 200
-        results = response.json()["results"]
-        assert len(results) == 5
-
-        # Check that results are sorted by the field in querystring as expected
-        compare = operator.ge if is_descending else operator.le
-        for i in range(4):
-            assert compare(results[i][field], results[i + 1][field])
-
-
-# Filters: is_creator_me
-
-
-def test_api_documents_list_filter_is_creator_me_true():
-    """
-    Authenticated users should be able to filter documents they created.
-    """
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    factories.DocumentFactory.create_batch(3, users=[user], creator=user)
-    factories.DocumentFactory.create_batch(2, users=[user])
-
-    response = client.get("/api/v1.0/documents/?is_creator_me=true")
-
-    assert response.status_code == 200
-    results = response.json()["results"]
-    assert len(results) == 3
-
-    # Ensure all results are created by the current user
-    for result in results:
-        assert result["creator"] == str(user.id)
-
-
-def test_api_documents_list_filter_is_creator_me_false():
-    """
-    Authenticated users should be able to filter documents created by others.
-    """
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    factories.DocumentFactory.create_batch(3, users=[user], creator=user)
-    factories.DocumentFactory.create_batch(2, users=[user])
-
-    response = client.get("/api/v1.0/documents/?is_creator_me=false")
-
-    assert response.status_code == 200
-    results = response.json()["results"]
-    assert len(results) == 2
-
-    # Ensure all results are created by other users
-    for result in results:
-        assert result["creator"] != str(user.id)
-
-
-def test_api_documents_list_filter_is_creator_me_invalid():
-    """Filtering with an invalid `is_creator_me` value should do nothing."""
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    factories.DocumentFactory.create_batch(3, users=[user], creator=user)
-    factories.DocumentFactory.create_batch(2, users=[user])
-
-    response = client.get("/api/v1.0/documents/?is_creator_me=invalid")
-
-    assert response.status_code == 200
-    results = response.json()["results"]
-    assert len(results) == 5
-
-
-# Filters: is_favorite
-
-
-def test_api_documents_list_filter_is_favorite_true():
-    """
-    Authenticated users should be able to filter documents they marked as favorite.
-    """
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    factories.DocumentFactory.create_batch(3, users=[user], favorited_by=[user])
-    factories.DocumentFactory.create_batch(2, users=[user])
-
-    response = client.get("/api/v1.0/documents/?is_favorite=true")
-
-    assert response.status_code == 200
-    results = response.json()["results"]
-    assert len(results) == 3
-
-    # Ensure all results are marked as favorite by the current user
-    for result in results:
-        assert result["is_favorite"] is True
-
-
-def test_api_documents_list_filter_is_favorite_false():
-    """
-    Authenticated users should be able to filter documents they didn't mark as favorite.
-    """
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    factories.DocumentFactory.create_batch(3, users=[user], favorited_by=[user])
-    factories.DocumentFactory.create_batch(2, users=[user])
-
-    response = client.get("/api/v1.0/documents/?is_favorite=false")
-
-    assert response.status_code == 200
-    results = response.json()["results"]
-    assert len(results) == 2
-
-    # Ensure all results are not marked as favorite by the current user
-    for result in results:
-        assert result["is_favorite"] is False
-
-
-def test_api_documents_list_filter_is_favorite_invalid():
-    """Filtering with an invalid `is_favorite` value should do nothing."""
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    factories.DocumentFactory.create_batch(3, users=[user], favorited_by=[user])
-    factories.DocumentFactory.create_batch(2, users=[user])
-
-    response = client.get("/api/v1.0/documents/?is_favorite=invalid")
-
-    assert response.status_code == 200
-    results = response.json()["results"]
-    assert len(results) == 5
-
-
-# Filters: link_reach
-
-
-@pytest.mark.parametrize("reach", models.LinkReachChoices.values)
-def test_api_documents_list_filter_link_reach(reach):
-    """Authenticated users should be able to filter documents by link reach."""
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    factories.DocumentFactory.create_batch(5, users=[user])
-
-    response = client.get(f"/api/v1.0/documents/?link_reach={reach:s}")
-
-    assert response.status_code == 200
-    results = response.json()["results"]
-
-    # Ensure all results have the chosen link reach
-    for result in results:
-        assert result["link_reach"] == reach
-
-
-def test_api_documents_list_filter_link_reach_invalid():
-    """Filtering with an invalid `link_reach` value should raise an error."""
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    factories.DocumentFactory.create_batch(3, users=[user])
-
-    response = client.get("/api/v1.0/documents/?link_reach=invalid")
-
-    assert response.status_code == 400
-    assert response.json() == {
-        "link_reach": [
-            "Select a valid choice. invalid is not one of the available choices."
-        ]
-    }
-
-
-# Filters: title
-
-
-@pytest.mark.parametrize(
-    "query,nb_results",
-    [
-        ("Project Alpha", 1),  # Exact match
-        ("project", 2),  # Partial match (case-insensitive)
-        ("Guide", 1),  # Word match within a title
-        ("Special", 0),  # No match (nonexistent keyword)
-        ("2024", 2),  # Match by numeric keyword
-        ("", 5),  # Empty string
-    ],
-)
-def test_api_documents_list_filter_title(query, nb_results):
-    """Authenticated users should be able to search documents by their title."""
-    user = factories.UserFactory()
-    client = APIClient()
-    client.force_login(user)
-
-    # Create documents with predefined titles
-    titles = [
-        "Project Alpha Documentation",
-        "Project Beta Overview",
-        "User Guide",
-        "Financial Report 2024",
-        "Annual Review 2024",
-    ]
-    for title in titles:
-        factories.DocumentFactory(title=title, users=[user])
-
-    # Perform the search query
-    response = client.get(f"/api/v1.0/documents/?title={query:s}")
-
-    assert response.status_code == 200
-    results = response.json()["results"]
-    assert len(results) == nb_results
-
-    # Ensure all results contain the query in their title
-    for result in results:
-        assert query.lower().strip() in result["title"].lower()

src/backend/core/tests/documents/test_api_documents_list_filters.py

@@ -0,0 +1,356 @@
+"""
+Tests for Documents API endpoint in impress's core app: list
+"""
+
+import operator
+import random
+from urllib.parse import urlencode
+
+import pytest
+from faker import Faker
+from rest_framework.test import APIClient
+
+from core import factories, models
+
+fake = Faker()
+pytestmark = pytest.mark.django_db
+
+
+def test_api_documents_list_filter_and_access_rights():
+    """Filtering on querystring parameters should respect access rights."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    other_user = factories.UserFactory()
+
+    def random_favorited_by():
+        return random.choice([[], [user], [other_user]])
+
+    # Documents that should be listed to this user
+    listed_documents = [
+        factories.DocumentFactory(
+            link_reach="public",
+            link_traces=[user],
+            favorited_by=random_favorited_by(),
+            creator=random.choice([user, other_user]),
+        ),
+        factories.DocumentFactory(
+            link_reach="authenticated",
+            link_traces=[user],
+            favorited_by=random_favorited_by(),
+            creator=random.choice([user, other_user]),
+        ),
+        factories.DocumentFactory(
+            link_reach="restricted",
+            users=[user],
+            favorited_by=random_favorited_by(),
+            creator=random.choice([user, other_user]),
+        ),
+    ]
+    listed_ids = [str(doc.id) for doc in listed_documents]
+    word_list = [word for doc in listed_documents for word in doc.title.split(" ")]
+
+    # Documents that should not be listed to this user
+    factories.DocumentFactory(
+        link_reach="public",
+        favorited_by=random_favorited_by(),
+        creator=random.choice([user, other_user]),
+    )
+    factories.DocumentFactory(
+        link_reach="authenticated",
+        favorited_by=random_favorited_by(),
+        creator=random.choice([user, other_user]),
+    )
+    factories.DocumentFactory(
+        link_reach="restricted",
+        favorited_by=random_favorited_by(),
+        creator=random.choice([user, other_user]),
+    )
+    factories.DocumentFactory(
+        link_reach="restricted",
+        link_traces=[user],
+        favorited_by=random_favorited_by(),
+        creator=random.choice([user, other_user]),
+    )
+
+    filters = {
+        "link_reach": random.choice([None, *models.LinkReachChoices.values]),
+        "title": random.choice([None, *word_list]),
+        "favorite": random.choice([None, True, False]),
+        "creator": random.choice([None, user, other_user]),
+        "ordering": random.choice(
+            [
+                None,
+                "created_at",
+                "-created_at",
+                "is_favorite",
+                "-is_favorite",
+                "title",
+                "-title",
+                "updated_at",
+                "-updated_at",
+            ]
+        ),
+    }
+    query_params = {key: value for key, value in filters.items() if value is not None}
+    querystring = urlencode(query_params)
+
+    response = client.get(f"/api/v1.0/documents/?{querystring:s}")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+
+    # Ensure all documents in results respect expected access rights
+    for result in results:
+        assert result["id"] in listed_ids
+
+
+# Filters: ordering
+
+
+def test_api_documents_list_ordering_default():
+    """Documents should be ordered by descending "updated_at" by default"""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.DocumentFactory.create_batch(5, users=[user])
+
+    response = client.get("/api/v1.0/documents/")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == 5
+
+    # Check that results are sorted by descending "updated_at" as expected
+    for i in range(4):
+        assert operator.ge(results[i]["updated_at"], results[i + 1]["updated_at"])
+
+
+def test_api_documents_list_ordering_by_fields():
+    """It should be possible to order by several fields"""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.DocumentFactory.create_batch(5, users=[user])
+
+    for parameter in [
+        "created_at",
+        "-created_at",
+        "is_favorite",
+        "-is_favorite",
+        "title",
+        "-title",
+        "updated_at",
+        "-updated_at",
+    ]:
+        is_descending = parameter.startswith("-")
+        field = parameter.lstrip("-")
+        querystring = f"?ordering={parameter}"
+
+        response = client.get(f"/api/v1.0/documents/{querystring:s}")
+        assert response.status_code == 200
+        results = response.json()["results"]
+        assert len(results) == 5
+
+        # Check that results are sorted by the field in querystring as expected
+        compare = operator.ge if is_descending else operator.le
+        for i in range(4):
+            assert compare(results[i][field], results[i + 1][field])
+
+
+# Filters: unknown field
+
+
+def test_api_documents_list_filter_unknown_field():
+    """
+    Trying to filter by an unknown field should raise a 400 error.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.DocumentFactory()
+    expected_ids = {
+        str(document.id)
+        for document in factories.DocumentFactory.create_batch(2, users=[user])
+    }
+
+    response = client.get("/api/v1.0/documents/?unknown=true")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == 2
+    assert {result["id"] for result in results} == expected_ids
+
+
+# Filters: is_creator_me
+
+
+def test_api_documents_list_filter_is_creator_me_true():
+    """
+    Authenticated users should be able to filter documents they created.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.DocumentFactory.create_batch(3, users=[user], creator=user)
+    factories.DocumentFactory.create_batch(2, users=[user])
+
+    response = client.get("/api/v1.0/documents/?is_creator_me=true")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == 3
+
+    # Ensure all results are created by the current user
+    for result in results:
+        assert result["creator"] == str(user.id)
+
+
+def test_api_documents_list_filter_is_creator_me_false():
+    """
+    Authenticated users should be able to filter documents created by others.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.DocumentFactory.create_batch(3, users=[user], creator=user)
+    factories.DocumentFactory.create_batch(2, users=[user])
+
+    response = client.get("/api/v1.0/documents/?is_creator_me=false")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == 2
+
+    # Ensure all results are created by other users
+    for result in results:
+        assert result["creator"] != str(user.id)
+
+
+def test_api_documents_list_filter_is_creator_me_invalid():
+    """Filtering with an invalid `is_creator_me` value should do nothing."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.DocumentFactory.create_batch(3, users=[user], creator=user)
+    factories.DocumentFactory.create_batch(2, users=[user])
+
+    response = client.get("/api/v1.0/documents/?is_creator_me=invalid")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == 5
+
+
+# Filters: is_favorite
+
+
+def test_api_documents_list_filter_is_favorite_true():
+    """
+    Authenticated users should be able to filter documents they marked as favorite.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.DocumentFactory.create_batch(3, users=[user], favorited_by=[user])
+    factories.DocumentFactory.create_batch(2, users=[user])
+
+    response = client.get("/api/v1.0/documents/?is_favorite=true")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == 3
+
+    # Ensure all results are marked as favorite by the current user
+    for result in results:
+        assert result["is_favorite"] is True
+
+
+def test_api_documents_list_filter_is_favorite_false():
+    """
+    Authenticated users should be able to filter documents they didn't mark as favorite.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.DocumentFactory.create_batch(3, users=[user], favorited_by=[user])
+    factories.DocumentFactory.create_batch(2, users=[user])
+
+    response = client.get("/api/v1.0/documents/?is_favorite=false")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == 2
+
+    # Ensure all results are not marked as favorite by the current user
+    for result in results:
+        assert result["is_favorite"] is False
+
+
+def test_api_documents_list_filter_is_favorite_invalid():
+    """Filtering with an invalid `is_favorite` value should do nothing."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.DocumentFactory.create_batch(3, users=[user], favorited_by=[user])
+    factories.DocumentFactory.create_batch(2, users=[user])
+
+    response = client.get("/api/v1.0/documents/?is_favorite=invalid")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == 5
+
+
+# Filters: title
+
+
+@pytest.mark.parametrize(
+    "query,nb_results",
+    [
+        ("Project Alpha", 1),  # Exact match
+        ("project", 2),  # Partial match (case-insensitive)
+        ("Guide", 1),  # Word match within a title
+        ("Special", 0),  # No match (nonexistent keyword)
+        ("2024", 2),  # Match by numeric keyword
+        ("", 5),  # Empty string
+    ],
+)
+def test_api_documents_list_filter_title(query, nb_results):
+    """Authenticated users should be able to search documents by their title."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    # Create documents with predefined titles
+    titles = [
+        "Project Alpha Documentation",
+        "Project Beta Overview",
+        "User Guide",
+        "Financial Report 2024",
+        "Annual Review 2024",
+    ]
+    for title in titles:
+        parent = factories.DocumentFactory() if random.choice([True, False]) else None
+        factories.DocumentFactory(title=title, users=[user], parent=parent)
+
+    # Perform the search query
+    response = client.get(f"/api/v1.0/documents/?title={query:s}")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == nb_results
+
+    # Ensure all results contain the query in their title
+    for result in results:
+        assert query.lower().strip() in result["title"].lower()

src/backend/core/tests/documents/test_api_documents_media_auth.py

@@ -64,6 +64,30 @@ def test_api_documents_media_auth_anonymous_public():
     assert response.content.decode("utf-8") == "my prose"
 
 
+def test_api_documents_media_auth_extensions():
+    """Files with extensions of any format should work."""
+    document = factories.DocumentFactory(link_reach="public")
+
+    extensions = [
+        "c",
+        "go",
+        "gif",
+        "mp4",
+        "woff2",
+        "appimage",
+    ]
+    for ext in extensions:
+        filename = f"{uuid.uuid4()!s}.{ext:s}"
+        key = f"{document.pk!s}/attachments/{filename:s}"
+
+        original_url = f"http://localhost/media/{key:s}"
+        response = APIClient().get(
+            "/api/v1.0/documents/media-auth/", HTTP_X_ORIGINAL_URL=original_url
+        )
+
+        assert response.status_code == 200
+
+
 @pytest.mark.parametrize("reach", ["authenticated", "restricted"])
 def test_api_documents_media_auth_anonymous_authenticated_or_restricted(reach):
     """

src/backend/core/tests/documents/test_api_documents_move.py

@@ -0,0 +1,339 @@
+"""
+Test moving documents within the document tree via an detail action API endpoint.
+"""
+
+import random
+from uuid import uuid4
+
+from django.utils import timezone
+
+import pytest
+from rest_framework.test import APIClient
+
+from core import enums, factories, models
+
+pytestmark = pytest.mark.django_db
+
+
+def test_api_documents_move_anonymous_user():
+    """Anonymous users should not be able to move documents."""
+    document = factories.DocumentFactory()
+    target = factories.DocumentFactory()
+
+    response = APIClient().post(
+        f"/api/v1.0/documents/{document.id!s}/move/",
+        data={"target_document_id": str(target.id)},
+    )
+
+    assert response.status_code == 401
+    assert response.json() == {
+        "detail": "Authentication credentials were not provided."
+    }
+
+
+@pytest.mark.parametrize("role", [None, "reader", "editor"])
+def test_api_documents_move_authenticated_document_no_permission(role):
+    """
+    Authenticated users should not be able to move documents with insufficient
+    permissions on the origin document.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory()
+    target = factories.UserDocumentAccessFactory(user=user, role="owner").document
+
+    if role:
+        factories.UserDocumentAccessFactory(document=document, user=user, role=role)
+
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/move/",
+        data={"target_document_id": str(target.id)},
+    )
+
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+
+def test_api_documents_move_invalid_target_string():
+    """Test for moving a document to an invalid target as a random string."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.UserDocumentAccessFactory(user=user, role="owner").document
+
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/move/",
+        data={"target_document_id": "non-existent-id"},
+    )
+
+    assert response.status_code == 400
+    assert response.json() == {"target_document_id": ["Must be a valid UUID."]}
+
+
+def test_api_documents_move_invalid_target_uuid():
+    """Test for moving a document to an invalid target that looks like a UUID."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.UserDocumentAccessFactory(user=user, role="owner").document
+
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/move/",
+        data={"target_document_id": str(uuid4())},
+    )
+
+    assert response.status_code == 400
+    assert response.json() == {
+        "target_document_id": "Target parent document does not exist."
+    }
+
+
+def test_api_documents_move_invalid_position():
+    """Test moving a document to an invalid position."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.UserDocumentAccessFactory(user=user, role="owner").document
+    target = factories.UserDocumentAccessFactory(user=user, role="owner").document
+
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/move/",
+        data={
+            "target_document_id": str(target.id),
+            "position": "invalid-position",
+        },
+    )
+
+    assert response.status_code == 400
+    assert response.json() == {
+        "position": ['"invalid-position" is not a valid choice.']
+    }
+
+
+@pytest.mark.parametrize("position", enums.MoveNodePositionChoices.values)
+@pytest.mark.parametrize("target_parent_role", models.RoleChoices.values)
+@pytest.mark.parametrize("target_role", models.RoleChoices.values)
+def test_api_documents_move_authenticated_target_roles_mocked(
+    target_role, target_parent_role, position
+):
+    """
+    Authenticated users with insufficient permissions on the target document (or its
+    parent depending on the position chosen), should not be allowed to move documents.
+    """
+
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    power_roles = ["administrator", "owner"]
+
+    document = factories.DocumentFactory(users=[(user, random.choice(power_roles))])
+    children = factories.DocumentFactory.create_batch(3, parent=document)
+
+    target_parent = factories.DocumentFactory(users=[(user, target_parent_role)])
+    sibling1, target, sibling2 = factories.DocumentFactory.create_batch(
+        3, parent=target_parent
+    )
+    models.DocumentAccess.objects.create(document=target, user=user, role=target_role)
+    target_children = factories.DocumentFactory.create_batch(2, parent=target)
+
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/move/",
+        data={"target_document_id": str(target.id), "position": position},
+    )
+
+    document.refresh_from_db()
+
+    if (
+        position in ["first-child", "last-child"]
+        and (target_role in power_roles or target_parent_role in power_roles)
+    ) or (
+        position in ["first-sibling", "last-sibling", "left", "right"]
+        and target_parent_role in power_roles
+    ):
+        assert response.status_code == 200
+        assert response.json() == {"message": "Document moved successfully."}
+
+        match position:
+            case "first-child":
+                assert list(target.get_children()) == [document, *target_children]
+            case "last-child":
+                assert list(target.get_children()) == [*target_children, document]
+            case "first-sibling":
+                assert list(target.get_siblings()) == [
+                    document,
+                    sibling1,
+                    target,
+                    sibling2,
+                ]
+            case "last-sibling":
+                assert list(target.get_siblings()) == [
+                    sibling1,
+                    target,
+                    sibling2,
+                    document,
+                ]
+            case "left":
+                assert list(target.get_siblings()) == [
+                    sibling1,
+                    document,
+                    target,
+                    sibling2,
+                ]
+            case "right":
+                assert list(target.get_siblings()) == [
+                    sibling1,
+                    target,
+                    document,
+                    sibling2,
+                ]
+            case _:
+                raise ValueError(f"Invalid position: {position}")
+
+        # Verify that the document's children have also been moved
+        assert list(document.get_children()) == children
+    else:
+        assert response.status_code == 400
+        assert (
+            "You do not have permission to move documents"
+            in response.json()["target_document_id"]
+        )
+        assert document.is_root() is True
+
+
+def test_api_documents_move_authenticated_deleted_document():
+    """
+    It should not be possible to move a deleted document or its descendants, even
+    for an owner.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(
+        users=[(user, "owner")], deleted_at=timezone.now()
+    )
+    child = factories.DocumentFactory(parent=document, users=[(user, "owner")])
+
+    target = factories.DocumentFactory(users=[(user, "owner")])
+
+    # Try moving the deleted document
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/move/",
+        data={"target_document_id": str(target.id)},
+    )
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+    # Verify that the document has not moved
+    document.refresh_from_db()
+    assert document.is_root() is True
+
+    # Try moving the child of the deleted document
+    response = client.post(
+        f"/api/v1.0/documents/{child.id!s}/move/",
+        data={"target_document_id": str(target.id)},
+    )
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+    # Verify that the child has not moved
+    child.refresh_from_db()
+    assert child.is_child_of(document) is True
+
+
+@pytest.mark.parametrize(
+    "position",
+    enums.MoveNodePositionChoices.values,
+)
+def test_api_documents_move_authenticated_deleted_target_as_child(position):
+    """
+    It should not be possible to move a document as a child of a deleted target
+    even for a owner.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(users=[(user, "owner")])
+
+    target = factories.DocumentFactory(
+        users=[(user, "owner")], deleted_at=timezone.now()
+    )
+    child = factories.DocumentFactory(parent=target, users=[(user, "owner")])
+
+    # Try moving the document to the deleted target
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/move/",
+        data={"target_document_id": str(target.id), "position": position},
+    )
+
+    assert response.status_code == 400
+    assert response.json() == {
+        "target_document_id": "Target parent document does not exist."
+    }
+
+    # Verify that the document has not moved
+    document.refresh_from_db()
+    assert document.is_root() is True
+
+    # Try moving the document to the child of the deleted target
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/move/",
+        data={"target_document_id": str(child.id), "position": position},
+    )
+    assert response.status_code == 400
+    assert response.json() == {
+        "target_document_id": "Target parent document does not exist."
+    }
+
+    # Verify that the document has not moved
+    document.refresh_from_db()
+    assert document.is_root() is True
+
+
+@pytest.mark.parametrize(
+    "position",
+    ["first-sibling", "last-sibling", "left", "right"],
+)
+def test_api_documents_move_authenticated_deleted_target_as_sibling(position):
+    """
+    It should not be possible to move a document as a sibling of a deleted target document
+    if the user has no rigths on its parent.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(users=[(user, "owner")])
+
+    target_parent = factories.DocumentFactory(
+        users=[(user, "owner")], deleted_at=timezone.now()
+    )
+    target = factories.DocumentFactory(users=[(user, "owner")], parent=target_parent)
+
+    # Try moving the document as a sibling of the target
+    response = client.post(
+        f"/api/v1.0/documents/{document.id!s}/move/",
+        data={"target_document_id": str(target.id), "position": position},
+    )
+
+    assert response.status_code == 400
+    assert response.json() == {
+        "target_document_id": "Target parent document does not exist."
+    }
+
+    # Verify that the document has not moved
+    document.refresh_from_db()
+    assert document.is_root() is True

src/backend/core/tests/documents/test_api_documents_restore.py

@@ -0,0 +1,126 @@
+"""
+Test restoring documents after a soft delete via the detail action API endpoint.
+"""
+
+from datetime import timedelta
+
+from django.utils import timezone
+
+import pytest
+from rest_framework.test import APIClient
+
+from core import factories
+
+pytestmark = pytest.mark.django_db
+
+
+def test_api_documents_restore_anonymous_user():
+    """Anonymous users should not be able to restore deleted documents."""
+    now = timezone.now() - timedelta(days=15)
+    document = factories.DocumentFactory(deleted_at=now)
+
+    response = APIClient().post(f"/api/v1.0/documents/{document.id!s}/restore/")
+
+    assert response.status_code == 404
+    assert response.json() == {"detail": "Not found."}
+
+    document.refresh_from_db()
+    assert document.deleted_at == now
+    assert document.ancestors_deleted_at == now
+
+
+@pytest.mark.parametrize("role", [None, "reader", "editor", "administrator"])
+def test_api_documents_restore_authenticated_no_permission(role):
+    """
+    Authenticated users who are not owners of a deleted document should
+    not be allowed to restore it.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    now = timezone.now() - timedelta(days=15)
+    document = factories.DocumentFactory(
+        deleted_at=now, link_reach="public", link_role="editor"
+    )
+    if role:
+        factories.UserDocumentAccessFactory(document=document, user=user, role=role)
+
+    response = client.post(f"/api/v1.0/documents/{document.id!s}/restore/")
+
+    assert response.status_code == 404
+    assert response.json() == {"detail": "Not found."}
+
+    document.refresh_from_db()
+    assert document.deleted_at == now
+    assert document.ancestors_deleted_at == now
+
+
+def test_api_documents_restore_authenticated_owner_success():
+    """The owner of a deleted document should be able to restore it."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    now = timezone.now() - timedelta(days=15)
+    document = factories.DocumentFactory(deleted_at=now)
+    factories.UserDocumentAccessFactory(document=document, user=user, role="owner")
+
+    response = client.post(f"/api/v1.0/documents/{document.id!s}/restore/")
+
+    assert response.status_code == 200
+    assert response.json() == {"detail": "Document has been successfully restored."}
+
+    document.refresh_from_db()
+    assert document.deleted_at is None
+    assert document.ancestors_deleted_at is None
+
+
+def test_api_documents_restore_authenticated_owner_ancestor_deleted():
+    """
+    The restored document should still be marked as deleted if one of its
+    ancestors is soft deleted as well.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory()
+    parent = factories.DocumentFactory(parent=grand_parent)
+    document = factories.DocumentFactory(parent=parent)
+    factories.UserDocumentAccessFactory(document=document, user=user, role="owner")
+
+    document.soft_delete()
+    document_deleted_at = document.deleted_at
+    assert document_deleted_at is not None
+
+    grand_parent.soft_delete()
+    grand_parent_deleted_at = grand_parent.deleted_at
+    assert grand_parent_deleted_at is not None
+
+    response = client.post(f"/api/v1.0/documents/{document.id!s}/restore/")
+
+    assert response.status_code == 200
+    assert response.json() == {"detail": "Document has been successfully restored."}
+
+    document.refresh_from_db()
+    assert document.deleted_at is None
+    # document is still marked as deleted
+    assert document.ancestors_deleted_at == grand_parent_deleted_at
+    assert grand_parent_deleted_at > document_deleted_at
+
+
+def test_api_documents_restore_authenticated_owner_expired():
+    """It should not be possible to restore a document beyond the allowed time limit."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    now = timezone.now() - timedelta(days=40)
+    document = factories.DocumentFactory(deleted_at=now)
+    factories.UserDocumentAccessFactory(document=document, user=user, role="owner")
+
+    response = client.post(f"/api/v1.0/documents/{document.id!s}/restore/")
+
+    assert response.status_code == 404
+    assert response.json() == {"detail": "Not found."}

src/backend/core/tests/documents/test_api_documents_retrieve.py

@@ -2,16 +2,21 @@
 Tests for Documents API endpoint in impress's core app: retrieve
 """
 
+import random
+from datetime import timedelta
+from unittest import mock
+
+from django.utils import timezone
+
 import pytest
 from rest_framework.test import APIClient
 
 from core import factories, models
-from core.api import serializers
 
 pytestmark = pytest.mark.django_db
 
 
-def test_api_documents_retrieve_anonymous_public():
+def test_api_documents_retrieve_anonymous_public_standalone():
     """Anonymous users should be allowed to retrieve public documents."""
     document = factories.DocumentFactory(link_reach="public")
 
@@ -23,18 +28,30 @@ def test_api_documents_retrieve_anonymous_public():
         "abilities": {
             "accesses_manage": False,
             "accesses_view": False,
-            "ai_transform": document.link_role == "editor",
-            "ai_translate": document.link_role == "editor",
+            "ai_transform": False,
+            "ai_translate": False,
             "attachment_upload": document.link_role == "editor",
+            "children_create": False,
+            "children_list": True,
             "collaboration_auth": True,
+            "cors_proxy": True,
+            "descendants": True,
             "destroy": False,
             # Anonymous user can't favorite a document even with read access
             "favorite": False,
             "invite_owner": False,
             "link_configuration": False,
+            "link_select_options": {
+                "authenticated": ["reader", "editor"],
+                "public": ["reader", "editor"],
+                "restricted": ["reader", "editor"],
+            },
             "media_auth": True,
+            "move": False,
             "partial_update": document.link_role == "editor",
+            "restore": False,
             "retrieve": True,
+            "tree": True,
             "update": document.link_role == "editor",
             "versions_destroy": False,
             "versions_list": False,
@@ -43,12 +60,97 @@ def test_api_documents_retrieve_anonymous_public():
         "content": document.content,
         "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
         "creator": str(document.creator.id),
+        "depth": 1,
+        "excerpt": document.excerpt,
         "is_favorite": False,
         "link_reach": "public",
         "link_role": document.link_role,
-        "nb_accesses": 0,
+        "nb_accesses_ancestors": 0,
+        "nb_accesses_direct": 0,
+        "numchild": 0,
+        "path": document.path,
         "title": document.title,
         "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": [],
+    }
+
+
+def test_api_documents_retrieve_anonymous_public_parent():
+    """Anonymous users should be allowed to retrieve a document who has a public ancestor."""
+    grand_parent = factories.DocumentFactory(link_reach="public")
+    parent = factories.DocumentFactory(
+        parent=grand_parent, link_reach=random.choice(["authenticated", "restricted"])
+    )
+    document = factories.DocumentFactory(
+        link_reach=random.choice(["authenticated", "restricted"]), parent=parent
+    )
+
+    response = APIClient().get(f"/api/v1.0/documents/{document.id!s}/")
+
+    assert response.status_code == 200
+    links = document.get_ancestors().values("link_reach", "link_role")
+    assert response.json() == {
+        "id": str(document.id),
+        "abilities": {
+            "accesses_manage": False,
+            "accesses_view": False,
+            "ai_transform": False,
+            "ai_translate": False,
+            "attachment_upload": grand_parent.link_role == "editor",
+            "children_create": False,
+            "children_list": True,
+            "collaboration_auth": True,
+            "descendants": True,
+            "cors_proxy": True,
+            "destroy": False,
+            # Anonymous user can't favorite a document even with read access
+            "favorite": False,
+            "invite_owner": False,
+            "link_configuration": False,
+            "link_select_options": models.LinkReachChoices.get_select_options(links),
+            "media_auth": True,
+            "move": False,
+            "partial_update": grand_parent.link_role == "editor",
+            "restore": False,
+            "retrieve": True,
+            "tree": True,
+            "update": grand_parent.link_role == "editor",
+            "versions_destroy": False,
+            "versions_list": False,
+            "versions_retrieve": False,
+        },
+        "content": document.content,
+        "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
+        "creator": str(document.creator.id),
+        "depth": 3,
+        "excerpt": document.excerpt,
+        "is_favorite": False,
+        "link_reach": document.link_reach,
+        "link_role": document.link_role,
+        "nb_accesses_ancestors": 0,
+        "nb_accesses_direct": 0,
+        "numchild": 0,
+        "path": document.path,
+        "title": document.title,
+        "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": [],
+    }
+
+
+def test_api_documents_retrieve_anonymous_public_child():
+    """
+    Anonymous users having access to a document should not gain access to a parent document.
+    """
+    document = factories.DocumentFactory(
+        link_reach=random.choice(["authenticated", "restricted"])
+    )
+    factories.DocumentFactory(link_reach="public", parent=document)
+
+    response = APIClient().get(f"/api/v1.0/documents/{document.id!s}/")
+
+    assert response.status_code == 401
+    assert response.json() == {
+        "detail": "Authentication credentials were not provided."
     }
 
 
@@ -68,8 +170,8 @@ def test_api_documents_retrieve_anonymous_restricted_or_authenticated(reach):
 @pytest.mark.parametrize("reach", ["public", "authenticated"])
 def test_api_documents_retrieve_authenticated_unrelated_public_or_authenticated(reach):
     """
-    Authenticated users should be able to retrieve a public document to which they are
-    not related.
+    Authenticated users should be able to retrieve a public/authenticated document to
+    which they are not related.
     """
     user = factories.UserFactory()
 
@@ -90,14 +192,26 @@ def test_api_documents_retrieve_authenticated_unrelated_public_or_authenticated(
             "ai_transform": document.link_role == "editor",
             "ai_translate": document.link_role == "editor",
             "attachment_upload": document.link_role == "editor",
+            "children_create": document.link_role == "editor",
+            "children_list": True,
             "collaboration_auth": True,
+            "descendants": True,
+            "cors_proxy": True,
             "destroy": False,
             "favorite": True,
             "invite_owner": False,
-            "media_auth": True,
             "link_configuration": False,
+            "link_select_options": {
+                "authenticated": ["reader", "editor"],
+                "public": ["reader", "editor"],
+                "restricted": ["reader", "editor"],
+            },
+            "media_auth": True,
+            "move": False,
             "partial_update": document.link_role == "editor",
+            "restore": False,
             "retrieve": True,
+            "tree": True,
             "update": document.link_role == "editor",
             "versions_destroy": False,
             "versions_list": False,
@@ -106,18 +220,111 @@ def test_api_documents_retrieve_authenticated_unrelated_public_or_authenticated(
         "content": document.content,
         "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
         "creator": str(document.creator.id),
+        "depth": 1,
+        "excerpt": document.excerpt,
         "is_favorite": False,
         "link_reach": reach,
         "link_role": document.link_role,
-        "nb_accesses": 0,
+        "nb_accesses_ancestors": 0,
+        "nb_accesses_direct": 0,
+        "numchild": 0,
+        "path": document.path,
         "title": document.title,
         "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": [],
     }
     assert (
         models.LinkTrace.objects.filter(document=document, user=user).exists() is True
     )
 
 
+@pytest.mark.parametrize("reach", ["public", "authenticated"])
+def test_api_documents_retrieve_authenticated_public_or_authenticated_parent(reach):
+    """
+    Authenticated users should be allowed to retrieve a document who has a public or
+    authenticated ancestor.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory(link_reach=reach)
+    parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+    document = factories.DocumentFactory(link_reach="restricted", parent=parent)
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/")
+
+    assert response.status_code == 200
+    links = document.get_ancestors().values("link_reach", "link_role")
+    assert response.json() == {
+        "id": str(document.id),
+        "abilities": {
+            "accesses_manage": False,
+            "accesses_view": False,
+            "ai_transform": grand_parent.link_role == "editor",
+            "ai_translate": grand_parent.link_role == "editor",
+            "attachment_upload": grand_parent.link_role == "editor",
+            "children_create": grand_parent.link_role == "editor",
+            "children_list": True,
+            "collaboration_auth": True,
+            "descendants": True,
+            "cors_proxy": True,
+            "destroy": False,
+            "favorite": True,
+            "invite_owner": False,
+            "link_configuration": False,
+            "link_select_options": models.LinkReachChoices.get_select_options(links),
+            "move": False,
+            "media_auth": True,
+            "partial_update": grand_parent.link_role == "editor",
+            "restore": False,
+            "retrieve": True,
+            "tree": True,
+            "update": grand_parent.link_role == "editor",
+            "versions_destroy": False,
+            "versions_list": False,
+            "versions_retrieve": False,
+        },
+        "content": document.content,
+        "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
+        "creator": str(document.creator.id),
+        "depth": 3,
+        "excerpt": document.excerpt,
+        "is_favorite": False,
+        "link_reach": document.link_reach,
+        "link_role": document.link_role,
+        "nb_accesses_ancestors": 0,
+        "nb_accesses_direct": 0,
+        "numchild": 0,
+        "path": document.path,
+        "title": document.title,
+        "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": [],
+    }
+
+
+@pytest.mark.parametrize("reach", ["public", "authenticated"])
+def test_api_documents_retrieve_authenticated_public_or_authenticated_child(reach):
+    """
+    Authenticated users having access to a document should not gain access to a parent document.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach="restricted")
+    factories.DocumentFactory(link_reach=reach, parent=document)
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/")
+
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
+    }
+
+
 @pytest.mark.parametrize("reach", ["public", "authenticated"])
 def test_api_documents_retrieve_authenticated_trace_twice(reach):
     """
@@ -179,10 +386,8 @@ def test_api_documents_retrieve_authenticated_related_direct():
     client.force_login(user)
 
     document = factories.DocumentFactory()
-    factories.UserDocumentAccessFactory(document=document, user=user)
-    access2 = factories.UserDocumentAccessFactory(document=document)
-    serializers.UserSerializer(instance=user)
-    serializers.UserSerializer(instance=access2.user)
+    access = factories.UserDocumentAccessFactory(document=document, user=user)
+    factories.UserDocumentAccessFactory(document=document)
 
     response = client.get(
         f"/api/v1.0/documents/{document.id!s}/",
@@ -194,12 +399,144 @@ def test_api_documents_retrieve_authenticated_related_direct():
         "content": document.content,
         "creator": str(document.creator.id),
         "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
+        "depth": 1,
+        "excerpt": document.excerpt,
         "is_favorite": False,
         "link_reach": document.link_reach,
         "link_role": document.link_role,
-        "nb_accesses": 2,
+        "nb_accesses_ancestors": 2,
+        "nb_accesses_direct": 2,
+        "numchild": 0,
+        "path": document.path,
         "title": document.title,
         "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": [access.role],
+    }
+
+
+def test_api_documents_retrieve_authenticated_related_parent():
+    """
+    Authenticated users should be allowed to retrieve a document if they are related
+    to one of its ancestors whatever the role.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory(link_reach="restricted")
+    parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+    document = factories.DocumentFactory(parent=parent, link_reach="restricted")
+
+    access = factories.UserDocumentAccessFactory(document=grand_parent, user=user)
+    factories.UserDocumentAccessFactory(document=grand_parent)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/",
+    )
+    assert response.status_code == 200
+    links = document.get_ancestors().values("link_reach", "link_role")
+    assert response.json() == {
+        "id": str(document.id),
+        "abilities": {
+            "accesses_manage": access.role in ["administrator", "owner"],
+            "accesses_view": True,
+            "ai_transform": access.role != "reader",
+            "ai_translate": access.role != "reader",
+            "attachment_upload": access.role != "reader",
+            "children_create": access.role != "reader",
+            "children_list": True,
+            "collaboration_auth": True,
+            "descendants": True,
+            "cors_proxy": True,
+            "destroy": access.role == "owner",
+            "favorite": True,
+            "invite_owner": access.role == "owner",
+            "link_configuration": access.role in ["administrator", "owner"],
+            "link_select_options": models.LinkReachChoices.get_select_options(links),
+            "media_auth": True,
+            "move": access.role in ["administrator", "owner"],
+            "partial_update": access.role != "reader",
+            "restore": access.role == "owner",
+            "retrieve": True,
+            "tree": True,
+            "update": access.role != "reader",
+            "versions_destroy": access.role in ["administrator", "owner"],
+            "versions_list": True,
+            "versions_retrieve": True,
+        },
+        "content": document.content,
+        "creator": str(document.creator.id),
+        "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
+        "depth": 3,
+        "excerpt": document.excerpt,
+        "is_favorite": False,
+        "link_reach": "restricted",
+        "link_role": document.link_role,
+        "nb_accesses_ancestors": 2,
+        "nb_accesses_direct": 0,
+        "numchild": 0,
+        "path": document.path,
+        "title": document.title,
+        "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": [access.role],
+    }
+
+
+def test_api_documents_retrieve_authenticated_related_nb_accesses():
+    """Validate computation of number of accesses."""
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory(link_reach="restricted")
+    parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+    document = factories.DocumentFactory(parent=parent, link_reach="restricted")
+
+    factories.UserDocumentAccessFactory(document=grand_parent, user=user)
+    factories.UserDocumentAccessFactory(document=parent)
+    factories.UserDocumentAccessFactory(document=document)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/",
+    )
+    assert response.status_code == 200
+    assert response.json()["nb_accesses_ancestors"] == 3
+    assert response.json()["nb_accesses_direct"] == 1
+
+    factories.UserDocumentAccessFactory(document=grand_parent)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/",
+    )
+    assert response.status_code == 200
+    assert response.json()["nb_accesses_ancestors"] == 4
+    assert response.json()["nb_accesses_direct"] == 1
+
+
+def test_api_documents_retrieve_authenticated_related_child():
+    """
+    Authenticated users should not be allowed to retrieve a document as a result of being
+    related to one of its children.
+    """
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(link_reach="restricted")
+    child = factories.DocumentFactory(parent=document)
+
+    factories.UserDocumentAccessFactory(document=child, user=user)
+    factories.UserDocumentAccessFactory(document=document)
+
+    response = client.get(
+        f"/api/v1.0/documents/{document.id!s}/",
+    )
+    assert response.status_code == 403
+    assert response.json() == {
+        "detail": "You do not have permission to perform this action."
     }
 
 
@@ -238,16 +575,16 @@ def test_api_documents_retrieve_authenticated_related_team_none(mock_user_teams)
 
 
 @pytest.mark.parametrize(
-    "teams",
+    "teams,roles",
     [
-        ["readers"],
-        ["unknown", "readers"],
-        ["editors"],
-        ["unknown", "editors"],
+        [["readers"], ["reader"]],
+        [["unknown", "readers"], ["reader"]],
+        [["editors"], ["editor"]],
+        [["unknown", "editors"], ["editor"]],
     ],
 )
 def test_api_documents_retrieve_authenticated_related_team_members(
-    teams, mock_user_teams
+    teams, roles, mock_user_teams
 ):
     """
     Authenticated users should be allowed to retrieve a document to which they
@@ -256,12 +593,10 @@ def test_api_documents_retrieve_authenticated_related_team_members(
     mock_user_teams.return_value = teams
 
     user = factories.UserFactory()
-
     client = APIClient()
     client.force_login(user)
 
     document = factories.DocumentFactory(link_reach="restricted")
-
     factories.TeamDocumentAccessFactory(
         document=document, team="readers", role="reader"
     )
@@ -285,25 +620,31 @@ def test_api_documents_retrieve_authenticated_related_team_members(
         "content": document.content,
         "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
         "creator": str(document.creator.id),
+        "depth": 1,
+        "excerpt": document.excerpt,
         "is_favorite": False,
         "link_reach": "restricted",
         "link_role": document.link_role,
-        "nb_accesses": 5,
+        "nb_accesses_ancestors": 5,
+        "nb_accesses_direct": 5,
+        "numchild": 0,
+        "path": document.path,
         "title": document.title,
         "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": roles,
     }
 
 
 @pytest.mark.parametrize(
-    "teams",
+    "teams,roles",
     [
-        ["administrators"],
-        ["editors", "administrators"],
-        ["unknown", "administrators"],
+        [["administrators"], ["administrator"]],
+        [["editors", "administrators"], ["administrator", "editor"]],
+        [["unknown", "administrators"], ["administrator"]],
     ],
 )
 def test_api_documents_retrieve_authenticated_related_team_administrators(
-    teams, mock_user_teams
+    teams, roles, mock_user_teams
 ):
     """
     Authenticated users should be allowed to retrieve a document to which they
@@ -341,26 +682,32 @@ def test_api_documents_retrieve_authenticated_related_team_administrators(
         "content": document.content,
         "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
         "creator": str(document.creator.id),
+        "depth": 1,
+        "excerpt": document.excerpt,
         "is_favorite": False,
         "link_reach": "restricted",
         "link_role": document.link_role,
-        "nb_accesses": 5,
+        "nb_accesses_ancestors": 5,
+        "nb_accesses_direct": 5,
+        "numchild": 0,
+        "path": document.path,
         "title": document.title,
         "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": roles,
     }
 
 
 @pytest.mark.parametrize(
-    "teams",
+    "teams,roles",
     [
-        ["owners"],
-        ["owners", "administrators"],
-        ["members", "administrators", "owners"],
-        ["unknown", "owners"],
+        [["owners"], ["owner"]],
+        [["owners", "administrators"], ["owner", "administrator"]],
+        [["members", "administrators", "owners"], ["owner", "administrator"]],
+        [["unknown", "owners"], ["owner"]],
     ],
 )
 def test_api_documents_retrieve_authenticated_related_team_owners(
-    teams, mock_user_teams
+    teams, roles, mock_user_teams
 ):
     """
     Authenticated users should be allowed to retrieve a restricted document to which
@@ -369,7 +716,6 @@ def test_api_documents_retrieve_authenticated_related_team_owners(
     mock_user_teams.return_value = teams
 
     user = factories.UserFactory()
-
     client = APIClient()
     client.force_login(user)
 
@@ -398,10 +744,232 @@ def test_api_documents_retrieve_authenticated_related_team_owners(
         "content": document.content,
         "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
         "creator": str(document.creator.id),
+        "depth": 1,
+        "excerpt": document.excerpt,
         "is_favorite": False,
         "link_reach": "restricted",
         "link_role": document.link_role,
-        "nb_accesses": 5,
+        "nb_accesses_ancestors": 5,
+        "nb_accesses_direct": 5,
+        "numchild": 0,
+        "path": document.path,
         "title": document.title,
         "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": roles,
     }
+
+
+def test_api_documents_retrieve_user_roles(django_assert_max_num_queries):
+    """
+    Roles should be annotated on querysets taking into account all documents ancestors.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    grand_parent = factories.DocumentFactory(
+        users=factories.UserFactory.create_batch(2)
+    )
+    parent = factories.DocumentFactory(
+        parent=grand_parent, users=factories.UserFactory.create_batch(2)
+    )
+    document = factories.DocumentFactory(
+        parent=parent, users=factories.UserFactory.create_batch(2)
+    )
+
+    accesses = (
+        factories.UserDocumentAccessFactory(document=grand_parent, user=user),
+        factories.UserDocumentAccessFactory(document=parent, user=user),
+        factories.UserDocumentAccessFactory(document=document, user=user),
+    )
+    expected_roles = {access.role for access in accesses}
+
+    with django_assert_max_num_queries(12):
+        response = client.get(f"/api/v1.0/documents/{document.id!s}/")
+
+    assert response.status_code == 200
+
+    user_roles = response.json()["user_roles"]
+    assert set(user_roles) == expected_roles
+
+
+def test_api_documents_retrieve_numqueries_with_link_trace(django_assert_num_queries):
+    """If the link traced already exists, the number of queries should be minimal."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document = factories.DocumentFactory(users=[user], link_traces=[user])
+
+    with django_assert_num_queries(5):
+        response = client.get(f"/api/v1.0/documents/{document.id!s}/")
+
+    with django_assert_num_queries(3):
+        response = client.get(f"/api/v1.0/documents/{document.id!s}/")
+
+    assert response.status_code == 200
+
+    assert response.json()["id"] == str(document.id)
+
+
+# Soft/permanent delete
+
+
+@pytest.mark.parametrize("depth", [1, 2, 3])
+@pytest.mark.parametrize("reach", models.LinkReachChoices.values)
+def test_api_documents_retrieve_soft_deleted_anonymous(reach, depth):
+    """
+    A soft/permanently deleted public document should not be accessible via its
+    detail endpoint for anonymous users, and should return a 404.
+    """
+    documents = []
+    for i in range(depth):
+        documents.append(
+            factories.DocumentFactory(link_reach=reach)
+            if i == 0
+            else factories.DocumentFactory(parent=documents[-1])
+        )
+    assert models.Document.objects.count() == depth
+
+    response = APIClient().get(f"/api/v1.0/documents/{documents[-1].id!s}/")
+
+    assert response.status_code == 200 if reach == "public" else 401
+
+    # Delete any one of the documents...
+    deleted_document = random.choice(documents)
+    deleted_document.soft_delete()
+
+    response = APIClient().get(f"/api/v1.0/documents/{documents[-1].id!s}/")
+
+    assert response.status_code == 404
+    assert response.json() == {"detail": "Not found."}
+
+    fourty_days_ago = timezone.now() - timedelta(days=40)
+    deleted_document.deleted_at = fourty_days_ago
+    deleted_document.ancestors_deleted_at = fourty_days_ago
+    deleted_document.save()
+
+    response = APIClient().get(f"/api/v1.0/documents/{documents[-1].id!s}/")
+
+    assert response.status_code == 404
+    assert response.json() == {"detail": "Not found."}
+
+
+@pytest.mark.parametrize("depth", [1, 2, 3])
+@pytest.mark.parametrize("reach", models.LinkReachChoices.values)
+def test_api_documents_retrieve_soft_deleted_authenticated(reach, depth):
+    """
+    A soft/permanently deleted document should not be accessible via its detail endpoint for
+    authenticated users not related to the document.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    documents = []
+    for i in range(depth):
+        documents.append(
+            factories.DocumentFactory(link_reach=reach)
+            if i == 0
+            else factories.DocumentFactory(parent=documents[-1])
+        )
+    assert models.Document.objects.count() == depth
+
+    response = client.get(f"/api/v1.0/documents/{documents[-1].id!s}/")
+
+    assert response.status_code == 200 if reach in ["public", "authenticated"] else 403
+
+    # Delete any one of the documents...
+    deleted_document = random.choice(documents)
+    deleted_document.soft_delete()
+
+    response = client.get(f"/api/v1.0/documents/{documents[-1].id!s}/")
+
+    assert response.status_code == 404
+    assert response.json() == {"detail": "Not found."}
+
+    fourty_days_ago = timezone.now() - timedelta(days=40)
+    deleted_document.deleted_at = fourty_days_ago
+    deleted_document.ancestors_deleted_at = fourty_days_ago
+    deleted_document.save()
+
+    response = client.get(f"/api/v1.0/documents/{documents[-1].id!s}/")
+
+    assert response.status_code == 404
+    assert response.json() == {"detail": "Not found."}
+
+
+@pytest.mark.parametrize("depth", [1, 2, 3])
+@pytest.mark.parametrize("role", models.RoleChoices.values)
+def test_api_documents_retrieve_soft_deleted_related(role, depth):
+    """
+    A soft deleted document should only be accessible via its detail endpoint by
+    users with specific "owner" access rights.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    documents = []
+    for i in range(depth):
+        documents.append(
+            factories.UserDocumentAccessFactory(role=role, user=user).document
+            if i == 0
+            else factories.DocumentFactory(parent=documents[-1])
+        )
+    assert models.Document.objects.count() == depth
+    document = documents[-1]
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/")
+
+    assert response.status_code == 200
+
+    # Delete any one of the documents
+    deleted_document = random.choice(documents)
+    deleted_document.soft_delete()
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/")
+
+    if role == "owner":
+        assert response.status_code == 200
+        assert response.json()["id"] == str(document.id)
+    else:
+        assert response.status_code == 404
+        assert response.json() == {"detail": "Not found."}
+
+
+@pytest.mark.parametrize("depth", [1, 2, 3])
+@pytest.mark.parametrize("role", models.RoleChoices.values)
+def test_api_documents_retrieve_permanently_deleted_related(role, depth):
+    """
+    A permanently deleted document should not be accessible via its detail endpoint for
+    authenticated users with specific access rights whatever their role.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    documents = []
+    for i in range(depth):
+        documents.append(
+            factories.UserDocumentAccessFactory(role=role, user=user).document
+            if i == 0
+            else factories.DocumentFactory(parent=documents[-1])
+        )
+    assert models.Document.objects.count() == depth
+    document = documents[-1]
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/")
+
+    assert response.status_code == 200
+
+    # Delete any one of the documents
+    deleted_document = random.choice(documents)
+    fourty_days_ago = timezone.now() - timedelta(days=40)
+    with mock.patch("django.utils.timezone.now", return_value=fourty_days_ago):
+        deleted_document.soft_delete()
+
+    response = client.get(f"/api/v1.0/documents/{document.id!s}/")
+
+    assert response.status_code == 404
+    assert response.json() == {"detail": "Not found."}

src/backend/core/tests/documents/test_api_documents_trashbin.py

@@ -0,0 +1,285 @@
+"""
+Tests for Documents API endpoint in impress's core app: list
+"""
+
+from datetime import timedelta
+from unittest import mock
+
+from django.utils import timezone
+
+import pytest
+from faker import Faker
+from rest_framework.pagination import PageNumberPagination
+from rest_framework.test import APIClient
+
+from core import factories, models
+
+fake = Faker()
+pytestmark = pytest.mark.django_db
+
+
+@pytest.mark.parametrize("role", models.LinkRoleChoices.values)
+@pytest.mark.parametrize("reach", models.LinkReachChoices.values)
+def test_api_documents_trashbin_anonymous(reach, role):
+    """
+    Anonymous users should not be allowed to list documents from the trashbin
+    whatever the link reach and link role
+    """
+    factories.DocumentFactory(
+        link_reach=reach, link_role=role, deleted_at=timezone.now()
+    )
+
+    response = APIClient().get("/api/v1.0/documents/trashbin/")
+
+    assert response.status_code == 200
+    assert response.json() == {
+        "count": 0,
+        "next": None,
+        "previous": None,
+        "results": [],
+    }
+
+
+def test_api_documents_trashbin_format():
+    """Validate the format of documents as returned by the trashbin view."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    other_users = factories.UserFactory.create_batch(3)
+    document = factories.DocumentFactory(
+        deleted_at=timezone.now(),
+        users=factories.UserFactory.create_batch(2),
+        favorited_by=[user, *other_users],
+        link_traces=other_users,
+    )
+    factories.UserDocumentAccessFactory(document=document, user=user, role="owner")
+
+    response = client.get("/api/v1.0/documents/trashbin/")
+
+    assert response.status_code == 200
+
+    content = response.json()
+    results = content.pop("results")
+    assert content == {
+        "count": 1,
+        "next": None,
+        "previous": None,
+    }
+    assert len(results) == 1
+    assert results[0] == {
+        "id": str(document.id),
+        "abilities": {
+            "accesses_manage": True,
+            "accesses_view": True,
+            "ai_transform": True,
+            "ai_translate": True,
+            "attachment_upload": True,
+            "children_create": True,
+            "children_list": True,
+            "collaboration_auth": True,
+            "descendants": True,
+            "cors_proxy": True,
+            "destroy": True,
+            "favorite": True,
+            "invite_owner": True,
+            "link_configuration": True,
+            "link_select_options": {
+                "authenticated": ["reader", "editor"],
+                "public": ["reader", "editor"],
+                "restricted": ["reader", "editor"],
+            },
+            "media_auth": True,
+            "move": False,  # Can't move a deleted document
+            "partial_update": True,
+            "restore": True,
+            "retrieve": True,
+            "tree": True,
+            "update": True,
+            "versions_destroy": True,
+            "versions_list": True,
+            "versions_retrieve": True,
+        },
+        "created_at": document.created_at.isoformat().replace("+00:00", "Z"),
+        "creator": str(document.creator.id),
+        "depth": 1,
+        "excerpt": document.excerpt,
+        "link_reach": document.link_reach,
+        "link_role": document.link_role,
+        "nb_accesses_ancestors": 0,
+        "nb_accesses_direct": 3,
+        "numchild": 0,
+        "path": document.path,
+        "title": document.title,
+        "updated_at": document.updated_at.isoformat().replace("+00:00", "Z"),
+        "user_roles": ["owner"],
+    }
+
+
+def test_api_documents_trashbin_authenticated_direct(django_assert_num_queries):
+    """
+    The trashbin should only list deleted documents for which the current user is owner.
+    """
+    now = timezone.now()
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    document1, document2 = factories.DocumentFactory.create_batch(2, deleted_at=now)
+    models.DocumentAccess.objects.create(document=document1, user=user, role="owner")
+    models.DocumentAccess.objects.create(document=document2, user=user, role="owner")
+
+    # Unrelated documents
+    for reach in models.LinkReachChoices:
+        for role in models.LinkRoleChoices:
+            factories.DocumentFactory(link_reach=reach, link_role=role, deleted_at=now)
+
+    # Role other than "owner"
+    for role in models.RoleChoices.values:
+        if role == "owner":
+            continue
+        document_not_owner = factories.DocumentFactory(deleted_at=now)
+        models.DocumentAccess.objects.create(
+            document=document_not_owner, user=user, role=role
+        )
+
+    # Nested documents should also get listed
+    parent = factories.DocumentFactory(parent=document1)
+    document3 = factories.DocumentFactory(parent=parent, deleted_at=now)
+    models.DocumentAccess.objects.create(document=parent, user=user, role="owner")
+
+    # Permanently deleted documents should not be listed
+    fourty_days_ago = timezone.now() - timedelta(days=40)
+    permanently_deleted_document = factories.DocumentFactory(users=[(user, "owner")])
+    with mock.patch("django.utils.timezone.now", return_value=fourty_days_ago):
+        permanently_deleted_document.soft_delete()
+
+    expected_ids = {str(document1.id), str(document2.id), str(document3.id)}
+
+    with django_assert_num_queries(10):
+        response = client.get("/api/v1.0/documents/trashbin/")
+
+    with django_assert_num_queries(4):
+        response = client.get("/api/v1.0/documents/trashbin/")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    results_ids = {result["id"] for result in results}
+    assert len(results) == 3
+    assert expected_ids == results_ids
+
+
+def test_api_documents_trashbin_authenticated_via_team(
+    django_assert_num_queries, mock_user_teams
+):
+    """
+    Authenticated users should be able to list trashbin documents they own via a team.
+    """
+    now = timezone.now()
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    mock_user_teams.return_value = ["team1", "team2", "unknown"]
+
+    deleted_document_team1 = factories.DocumentFactory(
+        teams=[("team1", "owner")], deleted_at=now
+    )
+    factories.DocumentFactory(teams=[("team1", "owner")])
+    factories.DocumentFactory(teams=[("team1", "administrator")], deleted_at=now)
+    factories.DocumentFactory(teams=[("team1", "administrator")])
+    deleted_document_team2 = factories.DocumentFactory(
+        teams=[("team2", "owner")], deleted_at=now
+    )
+    factories.DocumentFactory(teams=[("team2", "owner")])
+    factories.DocumentFactory(teams=[("team2", "administrator")], deleted_at=now)
+    factories.DocumentFactory(teams=[("team2", "administrator")])
+
+    expected_ids = {str(deleted_document_team1.id), str(deleted_document_team2.id)}
+
+    with django_assert_num_queries(7):
+        response = client.get("/api/v1.0/documents/trashbin/")
+
+    with django_assert_num_queries(3):
+        response = client.get("/api/v1.0/documents/trashbin/")
+
+    assert response.status_code == 200
+    results = response.json()["results"]
+    assert len(results) == 2
+    results_id = {result["id"] for result in results}
+    assert expected_ids == results_id
+
+
+@mock.patch.object(PageNumberPagination, "get_page_size", return_value=2)
+def test_api_documents_trashbin_pagination(
+    _mock_page_size,
+):
+    """Pagination should work as expected."""
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    document_ids = [
+        str(document.id)
+        for document in factories.DocumentFactory.create_batch(
+            3, deleted_at=timezone.now()
+        )
+    ]
+    for document_id in document_ids:
+        models.DocumentAccess.objects.create(
+            document_id=document_id, user=user, role="owner"
+        )
+
+    # Get page 1
+    response = client.get("/api/v1.0/documents/trashbin/")
+
+    assert response.status_code == 200
+    content = response.json()
+
+    assert content["count"] == 3
+    assert content["next"] == "http://testserver/api/v1.0/documents/trashbin/?page=2"
+    assert content["previous"] is None
+
+    assert len(content["results"]) == 2
+    for item in content["results"]:
+        document_ids.remove(item["id"])
+
+    # Get page 2
+    response = client.get(
+        "/api/v1.0/documents/trashbin/?page=2",
+    )
+
+    assert response.status_code == 200
+    content = response.json()
+
+    assert content["count"] == 3
+    assert content["next"] is None
+    assert content["previous"] == "http://testserver/api/v1.0/documents/trashbin/"
+
+    assert len(content["results"]) == 1
+    document_ids.remove(content["results"][0]["id"])
+    assert document_ids == []
+
+
+def test_api_documents_trashbin_distinct():
+    """A document with several related users should only be listed once."""
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    other_user = factories.UserFactory()
+    document = factories.DocumentFactory(
+        users=[(user, "owner"), other_user], deleted_at=timezone.now()
+    )
+
+    response = client.get(
+        "/api/v1.0/documents/trashbin/",
+    )
+
+    assert response.status_code == 200
+    content = response.json()
+    assert len(content["results"]) == 1
+    assert content["results"][0]["id"] == str(document.id)

src/backend/core/tests/documents/test_api_documents_update.py

@@ -16,6 +16,7 @@ from core.tests.conftest import TEAM, USER, VIA
 pytestmark = pytest.mark.django_db
 
 
+@pytest.mark.parametrize("via_parent", [True, False])
 @pytest.mark.parametrize(
     "reach, role",
     [
@@ -26,12 +27,18 @@ pytestmark = pytest.mark.django_db
         ("public", "reader"),
     ],
 )
-def test_api_documents_update_anonymous_forbidden(reach, role):
+def test_api_documents_update_anonymous_forbidden(reach, role, via_parent):
     """
     Anonymous users should not be allowed to update a document when link
     configuration does not allow it.
     """
-    document = factories.DocumentFactory(link_reach=reach, link_role=role)
+    if via_parent:
+        grand_parent = factories.DocumentFactory(link_reach=reach, link_role=role)
+        parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+        document = factories.DocumentFactory(parent=parent, link_reach="restricted")
+    else:
+        document = factories.DocumentFactory(link_reach=reach, link_role=role)
+
     old_document_values = serializers.DocumentSerializer(instance=document).data
 
     new_document_values = serializers.DocumentSerializer(
@@ -52,6 +59,7 @@ def test_api_documents_update_anonymous_forbidden(reach, role):
     assert document_values == old_document_values
 
 
+@pytest.mark.parametrize("via_parent", [True, False])
 @pytest.mark.parametrize(
     "reach,role",
     [
@@ -61,7 +69,9 @@ def test_api_documents_update_anonymous_forbidden(reach, role):
         ("restricted", "editor"),
     ],
 )
-def test_api_documents_update_authenticated_unrelated_forbidden(reach, role):
+def test_api_documents_update_authenticated_unrelated_forbidden(
+    reach, role, via_parent
+):
     """
     Authenticated users should not be allowed to update a document to which
     they are not related if the link configuration does not allow it.
@@ -71,7 +81,12 @@ def test_api_documents_update_authenticated_unrelated_forbidden(reach, role):
     client = APIClient()
     client.force_login(user)
 
-    document = factories.DocumentFactory(link_reach=reach, link_role=role)
+    if via_parent:
+        grand_parent = factories.DocumentFactory(link_reach=reach, link_role=role)
+        parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+        document = factories.DocumentFactory(parent=parent, link_reach="restricted")
+    else:
+        document = factories.DocumentFactory(link_reach=reach, link_role=role)
 
     old_document_values = serializers.DocumentSerializer(instance=document).data
     new_document_values = serializers.DocumentSerializer(
@@ -93,6 +108,7 @@ def test_api_documents_update_authenticated_unrelated_forbidden(reach, role):
     assert document_values == old_document_values
 
 
+@pytest.mark.parametrize("via_parent", [True, False])
 @pytest.mark.parametrize(
     "is_authenticated,reach,role",
     [
@@ -102,10 +118,10 @@ def test_api_documents_update_authenticated_unrelated_forbidden(reach, role):
     ],
 )
 def test_api_documents_update_anonymous_or_authenticated_unrelated(
-    is_authenticated, reach, role
+    is_authenticated, reach, role, via_parent
 ):
     """
-    Authenticated users should be able to update a document to which
+    Anonymous and authenticated users should be able to update a document to which
     they are not related if the link configuration allows it.
     """
     client = APIClient()
@@ -116,7 +132,12 @@ def test_api_documents_update_anonymous_or_authenticated_unrelated(
     else:
         user = AnonymousUser()
 
-    document = factories.DocumentFactory(link_reach=reach, link_role=role)
+    if via_parent:
+        grand_parent = factories.DocumentFactory(link_reach=reach, link_role=role)
+        parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+        document = factories.DocumentFactory(parent=parent, link_reach="restricted")
+    else:
+        document = factories.DocumentFactory(link_reach=reach, link_role=role)
 
     old_document_values = serializers.DocumentSerializer(instance=document).data
     new_document_values = serializers.DocumentSerializer(
@@ -137,8 +158,11 @@ def test_api_documents_update_anonymous_or_authenticated_unrelated(
             "accesses",
             "created_at",
             "creator",
+            "depth",
             "link_reach",
             "link_role",
+            "numchild",
+            "path",
         ]:
             assert value == old_document_values[key]
         elif key == "updated_at":
@@ -147,24 +171,34 @@ def test_api_documents_update_anonymous_or_authenticated_unrelated(
             assert value == new_document_values[key]
 
 
+@pytest.mark.parametrize("via_parent", [True, False])
 @pytest.mark.parametrize("via", VIA)
-def test_api_documents_update_authenticated_reader(via, mock_user_teams):
+def test_api_documents_update_authenticated_reader(via, via_parent, mock_user_teams):
     """
-    Users who are reader of a document but not administrators should
-    not be allowed to update it.
+    Users who are reader of a document should not be allowed to update it.
     """
     user = factories.UserFactory(with_owned_document=True)
 
     client = APIClient()
     client.force_login(user)
 
-    document = factories.DocumentFactory(link_role="reader")
+    if via_parent:
+        grand_parent = factories.DocumentFactory(link_reach="restricted")
+        parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+        document = factories.DocumentFactory(parent=parent, link_reach="restricted")
+        access_document = grand_parent
+    else:
+        document = factories.DocumentFactory(link_reach="restricted")
+        access_document = document
+
     if via == USER:
-        factories.UserDocumentAccessFactory(document=document, user=user, role="reader")
+        factories.UserDocumentAccessFactory(
+            document=access_document, user=user, role="reader"
+        )
     elif via == TEAM:
         mock_user_teams.return_value = ["lasuite", "unknown"]
         factories.TeamDocumentAccessFactory(
-            document=document, team="lasuite", role="reader"
+            document=access_document, team="lasuite", role="reader"
         )
 
     old_document_values = serializers.DocumentSerializer(instance=document).data
@@ -188,10 +222,11 @@ def test_api_documents_update_authenticated_reader(via, mock_user_teams):
     assert document_values == old_document_values
 
 
+@pytest.mark.parametrize("via_parent", [True, False])
 @pytest.mark.parametrize("role", ["editor", "administrator", "owner"])
 @pytest.mark.parametrize("via", VIA)
 def test_api_documents_update_authenticated_editor_administrator_or_owner(
-    via, role, mock_user_teams
+    via, role, via_parent, mock_user_teams
 ):
     """A user who is editor, administrator or owner of a document should be allowed to update it."""
     user = factories.UserFactory(with_owned_document=True)
@@ -199,13 +234,23 @@ def test_api_documents_update_authenticated_editor_administrator_or_owner(
     client = APIClient()
     client.force_login(user)
 
-    document = factories.DocumentFactory()
+    if via_parent:
+        grand_parent = factories.DocumentFactory(link_reach="restricted")
+        parent = factories.DocumentFactory(parent=grand_parent, link_reach="restricted")
+        document = factories.DocumentFactory(parent=parent, link_reach="restricted")
+        access_document = grand_parent
+    else:
+        document = factories.DocumentFactory(link_reach="restricted")
+        access_document = document
+
     if via == USER:
-        factories.UserDocumentAccessFactory(document=document, user=user, role=role)
+        factories.UserDocumentAccessFactory(
+            document=access_document, user=user, role=role
+        )
     elif via == TEAM:
         mock_user_teams.return_value = ["lasuite", "unknown"]
         factories.TeamDocumentAccessFactory(
-            document=document, team="lasuite", role=role
+            document=access_document, team="lasuite", role=role
         )
 
     old_document_values = serializers.DocumentSerializer(instance=document).data
@@ -227,55 +272,13 @@ def test_api_documents_update_authenticated_editor_administrator_or_owner(
             "id",
             "created_at",
             "creator",
+            "depth",
             "link_reach",
             "link_role",
-            "nb_accesses",
-        ]:
-            assert value == old_document_values[key]
-        elif key == "updated_at":
-            assert value > old_document_values[key]
-        else:
-            assert value == new_document_values[key]
-
-
-@pytest.mark.parametrize("via", VIA)
-def test_api_documents_update_authenticated_owners(via, mock_user_teams):
-    """Administrators of a document should be allowed to update it."""
-    user = factories.UserFactory(with_owned_document=True)
-
-    client = APIClient()
-    client.force_login(user)
-
-    document = factories.DocumentFactory()
-    if via == USER:
-        factories.UserDocumentAccessFactory(document=document, user=user, role="owner")
-    elif via == TEAM:
-        mock_user_teams.return_value = ["lasuite", "unknown"]
-        factories.TeamDocumentAccessFactory(
-            document=document, team="lasuite", role="owner"
-        )
-
-    old_document_values = serializers.DocumentSerializer(instance=document).data
-
-    new_document_values = serializers.DocumentSerializer(
-        instance=factories.DocumentFactory()
-    ).data
-
-    response = client.put(
-        f"/api/v1.0/documents/{document.id!s}/", new_document_values, format="json"
-    )
-
-    assert response.status_code == 200
-    document = models.Document.objects.get(pk=document.pk)
-    document_values = serializers.DocumentSerializer(instance=document).data
-    for key, value in document_values.items():
-        if key in [
-            "id",
-            "created_at",
-            "creator",
-            "link_reach",
-            "link_role",
-            "nb_accesses",
+            "nb_accesses_ancestors",
+            "nb_accesses_direct",
+            "numchild",
+            "path",
         ]:
             assert value == old_document_values[key]
         elif key == "updated_at":

src/backend/core/tests/migrations/test_0018_update_blank_title.py

@@ -0,0 +1,35 @@
+import pytest
+
+from core import factories
+
+
+@pytest.mark.django_db
+def test_update_blank_title_migration(migrator):
+    """
+    Test that the migration fixes the titles of documents that are
+    "Untitled document", "Unbenanntes Dokument" or "Document sans titre"
+    """
+    migrator.apply_initial_migration(("core", "0017_add_fields_for_soft_delete"))
+
+    english_doc = factories.DocumentFactory(title="Untitled document")
+    german_doc = factories.DocumentFactory(title="Unbenanntes Dokument")
+    french_doc = factories.DocumentFactory(title="Document sans titre")
+    other_doc = factories.DocumentFactory(title="My document")
+
+    assert english_doc.title == "Untitled document"
+    assert german_doc.title == "Unbenanntes Dokument"
+    assert french_doc.title == "Document sans titre"
+    assert other_doc.title == "My document"
+
+    # Apply the migration
+    migrator.apply_tested_migration(("core", "0018_update_blank_title"))
+
+    english_doc.refresh_from_db()
+    german_doc.refresh_from_db()
+    french_doc.refresh_from_db()
+    other_doc.refresh_from_db()
+
+    assert english_doc.title == None
+    assert german_doc.title == None
+    assert french_doc.title == None
+    assert other_doc.title == "My document"

src/backend/core/tests/swagger/test_openapi_schema.py

@@ -33,7 +33,7 @@ def test_openapi_client_schema():
     )
     assert output.getvalue() == ""
 
-    response = Client().get("/v1.0/swagger.json")
+    response = Client().get("/api/v1.0/swagger.json")
 
     assert response.status_code == 200
     with open(

src/backend/core/tests/templates/test_api_template_accesses.py

@@ -73,14 +73,14 @@ def test_api_template_accesses_list_authenticated_related(via, mock_user_teams):
         user_access = models.TemplateAccess.objects.create(
             template=template,
             user=user,
-            role=random.choice(models.RoleChoices.choices)[0],
+            role=random.choice(models.RoleChoices.values),
         )
     elif via == TEAM:
         mock_user_teams.return_value = ["lasuite", "unknown"]
         user_access = models.TemplateAccess.objects.create(
             template=template,
             team="lasuite",
-            role=random.choice(models.RoleChoices.choices)[0],
+            role=random.choice(models.RoleChoices.values),
         )
 
     access1 = factories.TeamTemplateAccessFactory(template=template)
@@ -219,7 +219,7 @@ def test_api_template_accesses_update_anonymous():
     new_values = {
         "id": uuid4(),
         "user": factories.UserFactory().id,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     api_client = APIClient()
@@ -252,7 +252,7 @@ def test_api_template_accesses_update_authenticated_unrelated():
     new_values = {
         "id": uuid4(),
         "user": factories.UserFactory().id,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     for field, value in new_values.items():
@@ -294,7 +294,7 @@ def test_api_template_accesses_update_authenticated_editor_or_reader(
     new_values = {
         "id": uuid4(),
         "user": factories.UserFactory().id,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     for field, value in new_values.items():
@@ -398,7 +398,7 @@ def test_api_template_accesses_update_administrator_from_owner(via, mock_user_te
     new_values = {
         "id": uuid4(),
         "user_id": factories.UserFactory().id,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     for field, value in new_values.items():
@@ -497,7 +497,7 @@ def test_api_template_accesses_update_owner(via, mock_user_teams):
     new_values = {
         "id": uuid4(),
         "user_id": factories.UserFactory().id,
-        "role": random.choice(models.RoleChoices.choices)[0],
+        "role": random.choice(models.RoleChoices.values),
     }
 
     for field, value in new_values.items():

src/backend/core/tests/templates/test_api_template_accesses_create.py

@@ -23,7 +23,7 @@ def test_api_template_accesses_create_anonymous():
         {
             "user": str(other_user.id),
             "template": str(template.id),
-            "role": random.choice(models.RoleChoices.choices)[0],
+            "role": random.choice(models.RoleChoices.values),
         },
         format="json",
     )

src/backend/core/tests/templates/test_api_templates_generate_document.py

@@ -1,208 +0,0 @@
-"""
-Test users API endpoints in the impress core app.
-"""
-
-import pytest
-from rest_framework.test import APIClient
-
-from core import factories
-from core.tests.conftest import TEAM, USER, VIA
-
-pytestmark = pytest.mark.django_db
-
-
-def test_api_templates_generate_document_anonymous_public():
-    """Anonymous users can generate pdf document with public templates."""
-    template = factories.TemplateFactory(is_public=True)
-    data = {
-        "body": "# Test markdown body",
-    }
-
-    response = APIClient().post(
-        f"/api/v1.0/templates/{template.id!s}/generate-document/",
-        data,
-        format="json",
-    )
-
-    assert response.status_code == 200
-    assert response.headers["content-type"] == "application/pdf"
-
-
-def test_api_templates_generate_document_anonymous_not_public():
-    """
-    Anonymous users should not be allowed to generate pdf document with templates
-    that are not marked as public.
-    """
-    template = factories.TemplateFactory(is_public=False)
-    data = {
-        "body": "# Test markdown body",
-    }
-
-    response = APIClient().post(
-        f"/api/v1.0/templates/{template.id!s}/generate-document/",
-        data,
-        format="json",
-    )
-
-    assert response.status_code == 401
-    assert response.json() == {
-        "detail": "Authentication credentials were not provided."
-    }
-
-
-def test_api_templates_generate_document_authenticated_public():
-    """Authenticated users can generate pdf document with public templates."""
-    user = factories.UserFactory()
-
-    client = APIClient()
-    client.force_login(user)
-
-    template = factories.TemplateFactory(is_public=True)
-    data = {"body": "# Test markdown body"}
-
-    response = client.post(
-        f"/api/v1.0/templates/{template.id!s}/generate-document/",
-        data,
-        format="json",
-    )
-
-    assert response.status_code == 200
-    assert response.headers["content-type"] == "application/pdf"
-
-
-def test_api_templates_generate_document_authenticated_not_public():
-    """
-    Authenticated users should not be allowed to generate pdf document with templates
-    that are not marked as public.
-    """
-    user = factories.UserFactory()
-
-    client = APIClient()
-    client.force_login(user)
-
-    template = factories.TemplateFactory(is_public=False)
-    data = {"body": "# Test markdown body"}
-
-    response = client.post(
-        f"/api/v1.0/templates/{template.id!s}/generate-document/",
-        data,
-        format="json",
-    )
-
-    assert response.status_code == 403
-    assert response.json() == {
-        "detail": "You do not have permission to perform this action."
-    }
-
-
-@pytest.mark.parametrize("via", VIA)
-def test_api_templates_generate_document_related(via, mock_user_teams):
-    """Users related to a template can generate pdf document."""
-    user = factories.UserFactory()
-
-    client = APIClient()
-    client.force_login(user)
-    access = None
-    if via == USER:
-        access = factories.UserTemplateAccessFactory(user=user)
-    elif via == TEAM:
-        mock_user_teams.return_value = ["lasuite", "unknown"]
-        access = factories.TeamTemplateAccessFactory(team="lasuite")
-
-    data = {"body": "# Test markdown body"}
-
-    response = client.post(
-        f"/api/v1.0/templates/{access.template_id!s}/generate-document/",
-        data,
-        format="json",
-    )
-
-    assert response.status_code == 200
-    assert response.headers["content-type"] == "application/pdf"
-
-
-def test_api_templates_generate_document_type_html():
-    """Generate pdf document with the body type html."""
-    user = factories.UserFactory()
-
-    client = APIClient()
-    client.force_login(user)
-
-    template = factories.TemplateFactory(is_public=True)
-    data = {"body": "<p>Test body</p>", "body_type": "html"}
-
-    response = client.post(
-        f"/api/v1.0/templates/{template.id!s}/generate-document/",
-        data,
-        format="json",
-    )
-
-    assert response.status_code == 200
-    assert response.headers["content-type"] == "application/pdf"
-
-
-def test_api_templates_generate_document_type_markdown():
-    """Generate pdf document with the body type markdown."""
-    user = factories.UserFactory()
-
-    client = APIClient()
-    client.force_login(user)
-
-    template = factories.TemplateFactory(is_public=True)
-    data = {"body": "# Test markdown body", "body_type": "markdown"}
-
-    response = client.post(
-        f"/api/v1.0/templates/{template.id!s}/generate-document/",
-        data,
-        format="json",
-    )
-
-    assert response.status_code == 200
-    assert response.headers["content-type"] == "application/pdf"
-
-
-def test_api_templates_generate_document_type_unknown():
-    """Generate pdf document with the body type unknown."""
-    user = factories.UserFactory()
-
-    client = APIClient()
-    client.force_login(user)
-
-    template = factories.TemplateFactory(is_public=True)
-    data = {"body": "# Test markdown body", "body_type": "unknown"}
-
-    response = client.post(
-        f"/api/v1.0/templates/{template.id!s}/generate-document/",
-        data,
-        format="json",
-    )
-
-    assert response.status_code == 400
-    assert response.json() == {
-        "body_type": [
-            '"unknown" is not a valid choice.',
-        ]
-    }
-
-
-def test_api_templates_generate_document_export_docx():
-    """Generate pdf document with the body type html."""
-    user = factories.UserFactory()
-
-    client = APIClient()
-    client.force_login(user)
-
-    template = factories.TemplateFactory(is_public=True)
-    data = {"body": "<p>Test body</p>", "body_type": "html", "format": "docx"}
-
-    response = client.post(
-        f"/api/v1.0/templates/{template.id!s}/generate-document/",
-        data,
-        format="json",
-    )
-
-    assert response.status_code == 200
-    assert (
-        response.headers["content-type"]
-        == "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
-    )

src/backend/core/tests/templates/test_api_templates_list.py

@@ -187,9 +187,9 @@ def test_api_templates_list_order_default():
     response_template_ids = [template["id"] for template in response_data["results"]]
 
     template_ids.reverse()
-    assert (
-        response_template_ids == template_ids
-    ), "created_at values are not sorted from newest to oldest"
+    assert response_template_ids == template_ids, (
+        "created_at values are not sorted from newest to oldest"
+    )
 
 
 def test_api_templates_list_order_param():
@@ -215,6 +215,6 @@ def test_api_templates_list_order_param():
 
     response_template_ids = [template["id"] for template in response_data["results"]]
 
-    assert (
-        response_template_ids == templates_ids
-    ), "created_at values are not sorted from oldest to newest"
+    assert response_template_ids == templates_ids, (
+        "created_at values are not sorted from oldest to newest"
+    )

src/backend/core/tests/test_api_config.py

@@ -20,6 +20,7 @@ pytestmark = pytest.mark.django_db
     CRISP_WEBSITE_ID="123",
     FRONTEND_THEME="test-theme",
     MEDIA_BASE_URL="http://testserver/",
+    POSTHOG_KEY={"id": "132456", "host": "https://eu.i.posthog-test.com"},
     SENTRY_DSN="https://sentry.test/123",
 )
 @pytest.mark.parametrize("is_authenticated", [False, True])
@@ -38,8 +39,14 @@ def test_api_config(is_authenticated):
         "CRISP_WEBSITE_ID": "123",
         "ENVIRONMENT": "test",
         "FRONTEND_THEME": "test-theme",
-        "LANGUAGES": [["en-us", "English"], ["fr-fr", "French"], ["de-de", "German"]],
+        "LANGUAGES": [
+            ["en-us", "English"],
+            ["fr-fr", "Français"],
+            ["de-de", "Deutsch"],
+            ["nl-nl", "Nederlands"],
+        ],
         "LANGUAGE_CODE": "en-us",
         "MEDIA_BASE_URL": "http://testserver/",
+        "POSTHOG_KEY": {"id": "132456", "host": "https://eu.i.posthog-test.com"},
         "SENTRY_DSN": "https://sentry.test/123",
     }

src/backend/core/tests/test_api_users.py

@@ -24,7 +24,7 @@ def test_api_users_list_anonymous():
 
 def test_api_users_list_authenticated():
     """
-    Authenticated users should be able to list users.
+    Authenticated users should not be able to list users without a query.
     """
     user = factories.UserFactory()
 
@@ -37,13 +37,14 @@ def test_api_users_list_authenticated():
     )
     assert response.status_code == 200
     content = response.json()
-    assert len(content["results"]) == 3
+    assert content == []
 
 
 def test_api_users_list_query_email():
     """
-    Authenticated users should be able to list users
-    and filter by email.
+    Authenticated users should be able to list users and filter by email.
+    Only results with a Levenstein distance less than 3 with the query should be returned.
+    We want to match by Levenstein distance because we want to prevent typing errors.
     """
     user = factories.UserFactory()
 
@@ -51,70 +52,114 @@ def test_api_users_list_query_email():
     client.force_login(user)
 
     dave = factories.UserFactory(email="david.bowman@work.com")
-    nicole = factories.UserFactory(email="nicole_foole@work.com")
-    frank = factories.UserFactory(email="frank_poole@work.com")
-    factories.UserFactory(email="heywood_floyd@work.com")
+    factories.UserFactory(email="nicole.bowman@work.com")
 
     response = client.get(
         "/api/v1.0/users/?q=david.bowman@work.com",
     )
     assert response.status_code == 200
-    user_ids = [user["id"] for user in response.json()["results"]]
+    user_ids = [user["id"] for user in response.json()]
     assert user_ids == [str(dave.id)]
 
-    response = client.get("/api/v1.0/users/?q=oole")
-
+    response = client.get(
+        "/api/v1.0/users/?q=davig.bovman@worm.com",
+    )
     assert response.status_code == 200
-    user_ids = [user["id"] for user in response.json()["results"]]
-    assert user_ids == [str(nicole.id), str(frank.id)]
+    user_ids = [user["id"] for user in response.json()]
+    assert user_ids == [str(dave.id)]
+
+    response = client.get(
+        "/api/v1.0/users/?q=davig.bovman@worm.cop",
+    )
+    assert response.status_code == 200
+    user_ids = [user["id"] for user in response.json()]
+    assert user_ids == []
 
 
-def test_api_users_list_query_email_matching():
-    """While filtering by email, results should be filtered and sorted by similarity"""
+def test_api_users_list_limit(settings):
+    """
+    Authenticated users should be able to list users and the number of results
+    should be limited to 10.
+    """
     user = factories.UserFactory()
 
     client = APIClient()
     client.force_login(user)
 
-    alice = factories.UserFactory(email="alice.johnson@example.gouv.fr")
-    factories.UserFactory(email="jane.smith@example.gouv.fr")
-    michael_wilson = factories.UserFactory(email="michael.wilson@example.gouv.fr")
-    factories.UserFactory(email="david.jones@example.gouv.fr")
-    michael_brown = factories.UserFactory(email="michael.brown@example.gouv.fr")
-    factories.UserFactory(email="sophia.taylor@example.gouv.fr")
+    # Use a base name with a length equal 5 to test that the limit is applied
+    base_name = "alice"
+    for i in range(15):
+        factories.UserFactory(email=f"{base_name}.{i}@example.com")
 
     response = client.get(
-        "/api/v1.0/users/?q=michael.johnson@example.gouv.f",
+        "/api/v1.0/users/?q=alice",
     )
     assert response.status_code == 200
-    user_ids = [user["id"] for user in response.json()["results"]]
-    assert user_ids == [str(michael_wilson.id)]
-
-    response = client.get("/api/v1.0/users/?q=michael.johnson@example.gouv.fr")
+    assert len(response.json()) == 5
 
+    # if the limit is changed, all users should be returned
+    settings.API_USERS_LIST_LIMIT = 100
+    response = client.get(
+        "/api/v1.0/users/?q=alice",
+    )
     assert response.status_code == 200
-    user_ids = [user["id"] for user in response.json()["results"]]
-    assert user_ids == [str(michael_wilson.id), str(alice.id), str(michael_brown.id)]
+    assert len(response.json()) == 15
+
+
+def test_api_users_list_throttling_authenticated(settings):
+    """
+    Authenticated users should be throttled.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    settings.REST_FRAMEWORK["DEFAULT_THROTTLE_RATES"]["user_list_burst"] = "3/minute"
+
+    for _i in range(3):
+        response = client.get(
+            "/api/v1.0/users/?q=alice",
+        )
+        assert response.status_code == 200
 
     response = client.get(
-        "/api/v1.0/users/?q=ajohnson@example.gouv.f",
+        "/api/v1.0/users/?q=alice",
     )
-    assert response.status_code == 200
-    user_ids = [user["id"] for user in response.json()["results"]]
-    assert user_ids == [str(alice.id)]
+    assert response.status_code == 429
+
+
+def test_api_users_list_query_email_matching():
+    """While filtering by email, results should be filtered and sorted by Levenstein distance."""
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    user1 = factories.UserFactory(email="alice.johnson@example.gouv.fr")
+    user2 = factories.UserFactory(email="alice.johnnson@example.gouv.fr")
+    user3 = factories.UserFactory(email="alice.kohlson@example.gouv.fr")
+    user4 = factories.UserFactory(email="alicia.johnnson@example.gouv.fr")
+    user5 = factories.UserFactory(email="alicia.johnnson@example.gov.uk")
+    factories.UserFactory(email="alice.thomson@example.gouv.fr")
 
     response = client.get(
-        "/api/v1.0/users/?q=michael.wilson@example.gouv.f",
+        "/api/v1.0/users/?q=alice.johnson@example.gouv.fr",
     )
     assert response.status_code == 200
-    user_ids = [user["id"] for user in response.json()["results"]]
-    assert user_ids == [str(michael_wilson.id)]
+    user_ids = [user["id"] for user in response.json()]
+    assert user_ids == [str(user1.id), str(user2.id), str(user3.id), str(user4.id)]
+
+    response = client.get("/api/v1.0/users/?q=alicia.johnnson@example.gouv.fr")
+
+    assert response.status_code == 200
+    user_ids = [user["id"] for user in response.json()]
+    assert user_ids == [str(user4.id), str(user2.id), str(user1.id), str(user5.id)]
 
 
 def test_api_users_list_query_email_exclude_doc_user():
     """
-    Authenticated users should be able to list users
-    and filter by email and exclude users who have access to a document.
+    Authenticated users should be able to list users while filtering by email
+    and excluding users who have access to a document.
     """
     user = factories.UserFactory()
     document = factories.DocumentFactory()
@@ -122,17 +167,59 @@ def test_api_users_list_query_email_exclude_doc_user():
     client = APIClient()
     client.force_login(user)
 
-    nicole = factories.UserFactory(email="nicole_foole@work.com")
-    frank = factories.UserFactory(email="frank_poole@work.com")
+    nicole_fool = factories.UserFactory(email="nicole_fool@work.com")
+    nicole_pool = factories.UserFactory(email="nicole_pool@work.com")
     factories.UserFactory(email="heywood_floyd@work.com")
 
-    factories.UserDocumentAccessFactory(document=document, user=frank)
+    factories.UserDocumentAccessFactory(document=document, user=nicole_pool)
 
-    response = client.get("/api/v1.0/users/?q=oole&document_id=" + str(document.id))
+    response = client.get(
+        "/api/v1.0/users/?q=nicole_fool@work.com&document_id=" + str(document.id)
+    )
 
     assert response.status_code == 200
-    user_ids = [user["id"] for user in response.json()["results"]]
-    assert user_ids == [str(nicole.id)]
+    user_ids = [user["id"] for user in response.json()]
+    assert user_ids == [str(nicole_fool.id)]
+
+
+def test_api_users_list_query_short_queries():
+    """
+    Queries shorter than 5 characters should return an empty result set.
+    """
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.UserFactory(email="john.doe@example.com")
+    factories.UserFactory(email="john.lennon@example.com")
+
+    response = client.get("/api/v1.0/users/?q=jo")
+    assert response.status_code == 200
+    assert response.json() == []
+
+    response = client.get("/api/v1.0/users/?q=john")
+    assert response.status_code == 200
+    assert response.json() == []
+
+    response = client.get("/api/v1.0/users/?q=john.")
+    assert response.status_code == 200
+    assert len(response.json()) == 2
+
+
+def test_api_users_list_query_inactive():
+    """Inactive users should not be listed."""
+    user = factories.UserFactory()
+    client = APIClient()
+    client.force_login(user)
+
+    factories.UserFactory(email="john.doe@example.com", is_active=False)
+    lennon = factories.UserFactory(email="john.lennon@example.com")
+
+    response = client.get("/api/v1.0/users/?q=john.")
+
+    assert response.status_code == 200
+    user_ids = [user["id"] for user in response.json()]
+    assert user_ids == [str(lennon.id)]
 
 
 def test_api_users_retrieve_me_anonymous():
@@ -163,6 +250,7 @@ def test_api_users_retrieve_me_authenticated():
         "id": str(user.id),
         "email": user.email,
         "full_name": user.full_name,
+        "language": user.language,
         "short_name": user.short_name,
     }
 

src/backend/core/tests/test_api_utils_filter_root_paths.py

@@ -0,0 +1,94 @@
+"""
+Unit tests for the filter_root_paths utility function.
+"""
+
+from core.api.utils import filter_root_paths
+
+
+def test_api_utils_filter_root_paths_success():
+    """
+    The `filter_root_paths` function should correctly identify root paths
+    from a given list of paths.
+
+    This test uses a list of paths with missing intermediate paths to ensure that
+    only the minimal set of root paths is returned.
+    """
+    paths = [
+        "0001",
+        "00010001",
+        "000100010001",
+        "000100010002",
+        # missing 00010002
+        "000100020001",
+        "000100020002",
+        "0002",
+        "00020001",
+        "00020002",
+        # missing 0003
+        "00030001",
+        "000300010001",
+        "00030002",
+        # missing 0004
+        # missing 00040001
+        # missing 000400010001
+        # missing 000400010002
+        "000400010003",
+        "0004000100030001",
+        "000400010004",
+    ]
+    filtered_paths = filter_root_paths(paths, skip_sorting=True)
+    assert filtered_paths == [
+        "0001",
+        "0002",
+        "00030001",
+        "00030002",
+        "000400010003",
+        "000400010004",
+    ]
+
+
+def test_api_utils_filter_root_paths_sorting():
+    """
+    The `filter_root_paths` function should fail is sorting is skipped and paths are not sorted.
+
+    This test verifies that when sorting is skipped, the function respects the input order, and
+    when sorting is enabled, the result is correctly ordered and minimal.
+    """
+    paths = [
+        "0001",
+        "00010001",
+        "000100010001",
+        "000100020002",
+        "000100010002",
+        "000100020001",
+        "00020001",
+        "0002",
+        "00020002",
+        "000300010001",
+        "00030001",
+        "00030002",
+        "0004000100030001",
+        "000400010003",
+        "000400010004",
+    ]
+    filtered_paths = filter_root_paths(paths, skip_sorting=True)
+    assert filtered_paths == [
+        "0001",
+        "00020001",
+        "0002",
+        "000300010001",
+        "00030001",
+        "00030002",
+        "0004000100030001",
+        "000400010003",
+        "000400010004",
+    ]
+    filtered_paths = filter_root_paths(paths)
+    assert filtered_paths == [
+        "0001",
+        "0002",
+        "00030001",
+        "00030002",
+        "000400010003",
+        "000400010004",
+    ]

src/backend/core/tests/test_api_utils_nest_tree.py

@@ -0,0 +1,107 @@
+"""Unit tests for the nest_tree utility function."""
+
+import pytest
+
+from core.api.utils import nest_tree
+
+
+def test_api_utils_nest_tree_empty_list():
+    """Test that an empty list returns an empty nested structure."""
+    # pylint: disable=use-implicit-booleaness-not-comparison
+    assert nest_tree([], 4) is None
+
+
+def test_api_utils_nest_tree_single_document():
+    """Test that a single document is returned as the only root element."""
+    documents = [{"id": "1", "path": "0001"}]
+    expected = {"id": "1", "path": "0001", "children": []}
+    assert nest_tree(documents, 4) == expected
+
+
+def test_api_utils_nest_tree_multiple_root_documents():
+    """Test that multiple root-level documents are correctly added to the root."""
+    documents = [
+        {"id": "1", "path": "0001"},
+        {"id": "2", "path": "0002"},
+    ]
+    with pytest.raises(
+        ValueError,
+        match="More than one root element detected.",
+    ):
+        nest_tree(documents, 4)
+
+
+def test_api_utils_nest_tree_nested_structure():
+    """Test that documents are correctly nested based on path levels."""
+    documents = [
+        {"id": "1", "path": "0001"},
+        {"id": "2", "path": "00010001"},
+        {"id": "3", "path": "000100010001"},
+        {"id": "4", "path": "00010002"},
+    ]
+    expected = {
+        "id": "1",
+        "path": "0001",
+        "children": [
+            {
+                "id": "2",
+                "path": "00010001",
+                "children": [{"id": "3", "path": "000100010001", "children": []}],
+            },
+            {"id": "4", "path": "00010002", "children": []},
+        ],
+    }
+    assert nest_tree(documents, 4) == expected
+
+
+def test_api_utils_nest_tree_siblings_at_same_path():
+    """
+    Test that sibling documents with the same path are correctly grouped under the same parent.
+    """
+    documents = [
+        {"id": "1", "path": "0001"},
+        {"id": "2", "path": "00010001"},
+        {"id": "3", "path": "00010002"},
+    ]
+    expected = {
+        "id": "1",
+        "path": "0001",
+        "children": [
+            {"id": "2", "path": "00010001", "children": []},
+            {"id": "3", "path": "00010002", "children": []},
+        ],
+    }
+    assert nest_tree(documents, 4) == expected
+
+
+def test_api_utils_nest_tree_decreasing_path_resets_parent():
+    """Test that a document at a lower path resets the parent assignment correctly."""
+    documents = [
+        {"id": "1", "path": "0001"},
+        {"id": "6", "path": "00010001"},
+        {"id": "2", "path": "00010002"},  # unordered
+        {"id": "5", "path": "000100010001"},
+        {"id": "3", "path": "000100010002"},
+        {"id": "4", "path": "00010003"},
+    ]
+    expected = {
+        "id": "1",
+        "path": "0001",
+        "children": [
+            {
+                "id": "6",
+                "path": "00010001",
+                "children": [
+                    {"id": "5", "path": "000100010001", "children": []},
+                    {"id": "3", "path": "000100010002", "children": []},
+                ],
+            },
+            {
+                "id": "2",
+                "path": "00010002",
+                "children": [],
+            },
+            {"id": "4", "path": "00010003", "children": []},
+        ],
+    }
+    assert nest_tree(documents, 4) == expected