mirror of
https://github.com/servo/servo
synced 2026-04-25 17:15:48 +02:00
8b1619ba1d
[Redirected](https://fetch.spec.whatwg.org/#dom-response-redirected) should be decided by the URL List. Currently it does not. We add some TODO, fill URL in more places according to spec. Testing: This should not change behaviour, as URL list is mostly used by [Redirected](https://fetch.spec.whatwg.org/#dom-response-redirected). If we do it now, we get test failures as URL list is not fully set in all spec steps. --------- Signed-off-by: Euclid Ye <yezhizhenjiakang@gmail.com>
586 lines
24 KiB
Rust
586 lines
24 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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//! The listener that encapsulates all state for an in-progress document request.
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//! Any redirects that are encountered are followed. Whenever a non-redirect
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//! response is received, it is forwarded to the appropriate script thread.
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use std::cell::Cell;
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use content_security_policy::sandboxing_directive::SandboxingFlagSet;
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use crossbeam_channel::Sender;
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use embedder_traits::user_contents::UserContentManagerId;
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use embedder_traits::{Theme, ViewportDetails, WebDriverLoadStatus};
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use http::header;
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use js::context::JSContext;
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use net_traits::blob_url_store::UrlWithBlobClaim;
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use net_traits::policy_container::RequestPolicyContainer;
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use net_traits::request::{
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CredentialsMode, InsecureRequestsPolicy, Origin, PreloadedResources, RedirectMode,
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RequestBuilder, RequestClient, RequestMode,
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};
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use net_traits::response::ResponseInit;
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use net_traits::{
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BoxedFetchCallback, CoreResourceThread, DOCUMENT_ACCEPT_HEADER_VALUE, FetchResponseMsg,
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Metadata, ReferrerPolicy, fetch_async, set_default_accept_language,
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};
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use script_bindings::inheritance::Castable;
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use script_traits::{DocumentActivity, NewPipelineInfo};
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use servo_base::cross_process_instant::CrossProcessInstant;
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use servo_base::id::{BrowsingContextId, PipelineId, WebViewId};
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use servo_constellation_traits::{
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LoadData, LoadOrigin, NavigationHistoryBehavior, ScriptToConstellationMessage,
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TargetSnapshotParams,
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};
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use servo_url::{ImmutableOrigin, MutableOrigin, ServoUrl};
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use url::Position;
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use crate::dom::bindings::codegen::Bindings::HTMLIFrameElementBinding::HTMLIFrameElementMethods;
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use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
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use crate::dom::bindings::refcounted::Trusted;
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use crate::dom::element::Element;
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use crate::dom::html::htmliframeelement::HTMLIFrameElement;
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use crate::dom::node::node::NodeTraits;
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use crate::dom::window::Window;
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use crate::dom::windowproxy::WindowProxy;
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use crate::fetch::FetchCanceller;
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use crate::messaging::MainThreadScriptMsg;
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use crate::script_runtime::CanGc;
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use crate::script_thread::ScriptThread;
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#[derive(Clone)]
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pub struct NavigationListener {
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request_builder: RequestBuilder,
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main_thread_sender: Sender<MainThreadScriptMsg>,
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// Whether or not results are sent to the main thread. After a redirect results are no longer sent,
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// as the main thread has already started a new request.
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send_results_to_main_thread: Cell<bool>,
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}
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impl NavigationListener {
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pub(crate) fn into_callback(self) -> BoxedFetchCallback {
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Box::new(move |response_msg| self.notify_fetch(response_msg))
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}
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pub fn new(
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request_builder: RequestBuilder,
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main_thread_sender: Sender<MainThreadScriptMsg>,
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) -> NavigationListener {
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NavigationListener {
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request_builder,
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main_thread_sender,
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send_results_to_main_thread: Cell::new(true),
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}
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}
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pub fn initiate_fetch(
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self,
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core_resource_thread: &CoreResourceThread,
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response_init: Option<ResponseInit>,
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) {
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fetch_async(
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core_resource_thread,
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self.request_builder.clone(),
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response_init,
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self.into_callback(),
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);
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}
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fn notify_fetch(&self, message: FetchResponseMsg) {
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// If we've already asked the main thread to redirect the response, then stop sending results
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// for this fetch. The main thread has already replaced it.
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if !self.send_results_to_main_thread.get() {
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return;
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}
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// If this is a redirect, don't send any more message after this one.
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if Self::http_redirect_metadata(&message).is_some() {
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self.send_results_to_main_thread.set(false);
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}
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let pipeline_id = self
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.request_builder
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.pipeline_id
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.expect("Navigation should always have an associated Pipeline");
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let result = self
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.main_thread_sender
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.send(MainThreadScriptMsg::NavigationResponse {
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pipeline_id,
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message: Box::new(message),
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});
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if let Err(error) = result {
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warn!(
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"Failed to send network message to pipeline {:?}: {error:?}",
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pipeline_id
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);
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}
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}
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pub(crate) fn http_redirect_metadata(message: &FetchResponseMsg) -> Option<&Metadata> {
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let FetchResponseMsg::ProcessResponse(_, Ok(metadata)) = message else {
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return None;
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};
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// Don't allow redirects for non HTTP(S) URLs.
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let metadata = metadata.metadata();
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if !matches!(
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metadata.location_url,
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Some(Ok(ref location_url)) if matches!(location_url.scheme(), "http" | "https")
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) {
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return None;
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}
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Some(metadata)
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}
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}
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/// A document load that is in the process of fetching the requested resource. Contains
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/// data that will need to be present when the document and frame tree entry are created,
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/// but is only easily available at initiation of the load and on a push basis (so some
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/// data will be updated according to future resize events, viewport changes, etc.)
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#[derive(JSTraceable)]
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pub(crate) struct InProgressLoad {
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/// The pipeline which requested this load.
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#[no_trace]
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pub(crate) pipeline_id: PipelineId,
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/// The browsing context being loaded into.
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#[no_trace]
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pub(crate) browsing_context_id: BrowsingContextId,
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/// The top level ancestor browsing context.
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#[no_trace]
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pub(crate) webview_id: WebViewId,
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/// The parent pipeline and frame type associated with this load, if any.
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#[no_trace]
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pub(crate) parent_info: Option<PipelineId>,
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/// The opener, if this is an auxiliary.
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#[no_trace]
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pub(crate) opener: Option<BrowsingContextId>,
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/// The current window size associated with this pipeline.
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#[no_trace]
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pub(crate) viewport_details: ViewportDetails,
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/// The activity level of the document (inactive, active or fully active).
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#[no_trace]
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pub(crate) activity: DocumentActivity,
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/// Window is throttled, running timers at a heavily limited rate.
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pub(crate) throttled: bool,
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/// Timestamp reporting the time when the browser started this load.
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#[no_trace]
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pub(crate) navigation_start: CrossProcessInstant,
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/// For cancelling the fetch
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pub(crate) canceller: FetchCanceller,
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/// The [`LoadData`] associated with this load.
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#[no_trace]
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pub(crate) load_data: LoadData,
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/// A list of URL to keep track of all the redirects that have happened during
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/// this load.
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#[no_trace]
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pub(crate) url_list: Vec<ServoUrl>,
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#[no_trace]
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/// The [`UserContentManagerId`] associated with this load's `WebView`.
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pub(crate) user_content_manager_id: Option<UserContentManagerId>,
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/// The [`Theme`] to use for this page, once it loads.
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#[no_trace]
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pub(crate) theme: Theme,
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/// The [`TargetSnapshotParams`] to use when creating this document.
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#[no_trace]
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pub(crate) target_snapshot_params: TargetSnapshotParams,
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}
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impl InProgressLoad {
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/// Create a new InProgressLoad object.
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pub(crate) fn new(new_pipeline_info: NewPipelineInfo) -> InProgressLoad {
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let url = new_pipeline_info.load_data.url.clone();
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InProgressLoad {
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pipeline_id: new_pipeline_info.new_pipeline_id,
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browsing_context_id: new_pipeline_info.browsing_context_id,
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webview_id: new_pipeline_info.webview_id,
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parent_info: new_pipeline_info.parent_info,
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opener: new_pipeline_info.opener,
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viewport_details: new_pipeline_info.viewport_details,
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activity: DocumentActivity::FullyActive,
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throttled: false,
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navigation_start: CrossProcessInstant::now(),
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canceller: Default::default(),
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load_data: new_pipeline_info.load_data,
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url_list: vec![url],
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user_content_manager_id: new_pipeline_info.user_content_manager_id,
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theme: new_pipeline_info.theme,
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target_snapshot_params: new_pipeline_info.target_snapshot_params,
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}
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}
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pub(crate) fn request_builder(&mut self) -> RequestBuilder {
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let client_origin = match self.load_data.load_origin {
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LoadOrigin::Script(ref initiator_origin) => initiator_origin.immutable().clone(),
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_ => ImmutableOrigin::new_opaque(),
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};
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let id = self.pipeline_id;
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let webview_id = self.webview_id;
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let insecure_requests_policy = self
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.load_data
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.inherited_insecure_requests_policy
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.unwrap_or(InsecureRequestsPolicy::DoNotUpgrade);
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let request_client = RequestClient {
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preloaded_resources: PreloadedResources::default(),
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policy_container: RequestPolicyContainer::PolicyContainer(
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self.load_data.policy_container.clone().unwrap_or_default(),
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),
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origin: Origin::Origin(client_origin),
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is_nested_browsing_context: self.parent_info.is_some(),
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insecure_requests_policy,
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};
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let mut request_builder = RequestBuilder::new(
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Some(webview_id),
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UrlWithBlobClaim::from_url_without_having_claimed_blob(self.load_data.url.clone()),
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self.load_data.referrer.clone(),
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)
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.method(self.load_data.method.clone())
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.destination(self.load_data.destination)
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.mode(RequestMode::Navigate)
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.credentials_mode(CredentialsMode::Include)
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.use_url_credentials(true)
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.pipeline_id(Some(id))
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.referrer_policy(self.load_data.referrer_policy)
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.policy_container(self.load_data.policy_container.clone().unwrap_or_default())
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.insecure_requests_policy(insecure_requests_policy)
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.has_trustworthy_ancestor_origin(self.load_data.has_trustworthy_ancestor_origin)
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.headers(self.load_data.headers.clone())
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.body(self.load_data.data.clone())
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.redirect_mode(RedirectMode::Manual)
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.crash(self.load_data.crash.clone())
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.client(request_client)
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.url_list(self.url_list.clone());
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if !request_builder.headers.contains_key(header::ACCEPT) {
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request_builder
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.headers
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.insert(header::ACCEPT, DOCUMENT_ACCEPT_HEADER_VALUE);
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}
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set_default_accept_language(&mut request_builder.headers);
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request_builder
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}
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}
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/// <https://html.spec.whatwg.org/multipage/#determining-the-origin>
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pub(crate) fn determine_the_origin(
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url: Option<&ServoUrl>,
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sandbox_flags: SandboxingFlagSet,
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source_origin: Option<MutableOrigin>,
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) -> MutableOrigin {
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// Step 1. If sandboxFlags has its sandboxed origin browsing context flag set, then return a new opaque origin.
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let is_sandboxed =
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sandbox_flags.contains(SandboxingFlagSet::SANDBOXED_ORIGIN_BROWSING_CONTEXT_FLAG);
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if is_sandboxed {
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return MutableOrigin::new(ImmutableOrigin::new_opaque());
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}
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// Step 2. If url is null, then return a new opaque origin.
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let Some(url) = url else {
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return MutableOrigin::new(ImmutableOrigin::new_opaque());
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};
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// Step 3. If url is about:srcdoc, then:
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if url.as_str() == "about:srcdoc" {
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// Step 3.1 Assert: sourceOrigin is non-null.
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let source_origin =
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source_origin.expect("Can't have a null source origin for about:srcdoc");
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// Step 3.2 Return sourceOrigin
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return source_origin;
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}
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// Step 4. If url matches about:blank and sourceOrigin is non-null, then return sourceOrigin.
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if url.as_str() == "about:blank" {
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if let Some(source_origin) = source_origin {
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return source_origin;
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}
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}
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// Step 5. Return url's origin.
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MutableOrigin::new(url.origin())
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}
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/// <https://html.spec.whatwg.org/multipage/#navigate-fragid>
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fn navigate_to_fragment(
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cx: &mut JSContext,
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window: &Window,
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url: &ServoUrl,
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history_handling: NavigationHistoryBehavior,
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) {
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let doc = window.Document();
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// Step 1. Let navigation be navigable's active window's navigation API.
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// TODO
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// Step 2. Let destinationNavigationAPIState be navigable's active session history entry's navigation API state.
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// TODO
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// Step 3. If navigationAPIState is not null, then set destinationNavigationAPIState to navigationAPIState.
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// TODO
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// Step 4. Let continue be the result of firing a push/replace/reload navigate event
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// at navigation with navigationType set to historyHandling, isSameDocument set to true,
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// userInvolvement set to userInvolvement, sourceElement set to sourceElement,
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// destinationURL set to url, and navigationAPIState set to destinationNavigationAPIState.
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// TODO
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// Step 5. If continue is false, then return.
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// TODO
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// Step 6. Let historyEntry be a new session history entry, with
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// Step 7. Let entryToReplace be navigable's active session history entry if historyHandling is "replace", otherwise null.
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// Step 8. Let history be navigable's active document's history object.
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// Step 9. Let scriptHistoryIndex be history's index.
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// Step 10. Let scriptHistoryLength be history's length.
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// Step 11. If historyHandling is "push", then:
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// Step 13. Set navigable's active session history entry to historyEntry.
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window.send_to_constellation(ScriptToConstellationMessage::NavigatedToFragment(
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url.clone(),
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history_handling,
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));
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// Step 12. Set navigable's active document's URL to url.
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let old_url = doc.url();
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doc.set_url(url.clone());
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// Step 14. Update document for history step application given navigable's active document,
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// historyEntry, true, scriptHistoryIndex, scriptHistoryLength, and historyHandling.
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doc.update_document_for_history_step_application(&old_url, url);
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// Step 15. Scroll to the fragment given navigable's active document.
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let Some(fragment) = url.fragment() else {
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unreachable!("Must always have a fragment");
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};
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doc.scroll_to_the_fragment(fragment, CanGc::from_cx(cx));
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// Step 16. Let traversable be navigable's traversable navigable.
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// TODO
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// Step 17. Append the following session history synchronous navigation steps involving navigable to traversable:
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// TODO
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}
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/// <https://html.spec.whatwg.org/multipage/#navigate>
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pub(crate) fn navigate(
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cx: &mut JSContext,
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window: &Window,
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history_handling: NavigationHistoryBehavior,
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force_reload: bool,
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load_data: LoadData,
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) {
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let doc = window.Document();
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// Step 3. Let initiatorOriginSnapshot be sourceDocument's origin.
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let initiator_origin_snapshot = &load_data.load_origin;
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// TODO: Important re security. See https://github.com/servo/servo/issues/23373
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// Step 5. check that the source browsing-context is "allowed to navigate" this window.
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// Step 4 and 5
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let pipeline_id = window.pipeline_id();
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let window_proxy = window.window_proxy();
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if let Some(active) = window_proxy.currently_active() {
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if pipeline_id == active && doc.is_prompting_or_unloading() {
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return;
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}
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}
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// Step 12. If historyHandling is "auto", then:
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let history_handling = if history_handling == NavigationHistoryBehavior::Auto {
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// Step 12.1. If url equals navigable's active document's URL, and
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// initiatorOriginSnapshot is same origin with targetNavigable's active document's
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// origin, then set historyHandling to "replace".
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//
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// Note: `targetNavigable` is not actually defined in the spec, "active document" is
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// assumed to be the correct reference based on WPT results
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if let LoadOrigin::Script(initiator_origin) = initiator_origin_snapshot {
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if load_data.url == doc.url() && initiator_origin.same_origin(&*doc.origin()) {
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NavigationHistoryBehavior::Replace
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} else {
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// Step 12.2. Otherwise, set historyHandling to "push".
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NavigationHistoryBehavior::Push
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}
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} else {
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// Step 12.2. Otherwise, set historyHandling to "push".
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NavigationHistoryBehavior::Push
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}
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} else {
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history_handling
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};
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// Step 13. If the navigation must be a replace given url and navigable's active
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// document, then set historyHandling to "replace".
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//
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// Inlines implementation of https://html.spec.whatwg.org/multipage/#the-navigation-must-be-a-replace
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let history_handling = if load_data.url.scheme() == "javascript" || doc.is_initial_about_blank()
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{
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NavigationHistoryBehavior::Replace
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} else {
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history_handling
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};
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// Step 14. If all of the following are true:
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// > documentResource is null;
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// > response is null;
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if !force_reload
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// > url equals navigable's active session history entry's URL with exclude fragments set to true; and
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&& load_data.url.as_url()[..Position::AfterQuery] ==
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doc.url().as_url()[..Position::AfterQuery]
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// > url's fragment is non-null,
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&& load_data.url.fragment().is_some()
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{
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// Step 14.1. Navigate to a fragment given navigable, url, historyHandling,
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// userInvolvement, sourceElement, navigationAPIState, and navigationId.
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let webdriver_sender = window.webdriver_load_status_sender();
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if let Some(ref sender) = webdriver_sender {
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let _ = sender.send(WebDriverLoadStatus::NavigationStart);
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}
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navigate_to_fragment(cx, window, &load_data.url, history_handling);
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// Step 14.2. Return.
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if let Some(sender) = webdriver_sender {
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let _ = sender.send(WebDriverLoadStatus::NavigationStop);
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}
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return;
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}
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// Step 15. If navigable's parent is non-null, then set navigable's is delaying load events to true.
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let window_proxy = window.window_proxy();
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if window_proxy.parent().is_some() {
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window_proxy.start_delaying_load_events_mode();
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}
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// Step 16. Let targetSnapshotParams be the result of snapshotting target
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// snapshot params given navigable.
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let target_snapshot_params = snapshot_target_snapshot_params(&window_proxy);
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// Step 17. Invoke WebDriver BiDi navigation started with navigable
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// and a new WebDriver BiDi navigation status whose id is navigationId,
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|
// status is "pending", and url is url.
|
|
// TODO
|
|
if let Some(sender) = window.webdriver_load_status_sender() {
|
|
let _ = sender.send(WebDriverLoadStatus::NavigationStart);
|
|
}
|
|
|
|
// Step 18. If navigable's ongoing navigation is "traversal", then:
|
|
// TODO
|
|
// Step 19. Set the ongoing navigation for navigable to navigationId.
|
|
// TODO
|
|
|
|
// Step 20. If url's scheme is "javascript", then:
|
|
if load_data.url.scheme() == "javascript" {
|
|
// Step 20.1. Queue a global task on the navigation and traversal task source given
|
|
// navigable's active window to navigate to a javascript: URL given navigable, url,
|
|
// historyHandling, sourceSnapshotParams, initiatorOriginSnapshot, userInvolvement,
|
|
// cspNavigationType, initialInsertion, and navigationId.
|
|
let global = window.as_global_scope();
|
|
let trusted_window = Trusted::new(window);
|
|
let sender = global.script_to_constellation_chan().clone();
|
|
let mut load_data = load_data;
|
|
load_data.about_base_url = window.Document().about_base_url();
|
|
let task = task!(navigate_javascript: move |cx| {
|
|
// Important re security. See https://github.com/servo/servo/issues/23373
|
|
let window = trusted_window.root();
|
|
let global = window.as_global_scope();
|
|
if ScriptThread::navigate_to_javascript_url(cx, global, global, &mut load_data, None, None) {
|
|
sender
|
|
.send(ScriptToConstellationMessage::LoadUrl(load_data, history_handling, target_snapshot_params))
|
|
.unwrap();
|
|
}
|
|
});
|
|
global
|
|
.task_manager()
|
|
.navigation_and_traversal_task_source()
|
|
.queue(task);
|
|
// Step 20.2. Return.
|
|
return;
|
|
}
|
|
|
|
// Step 23. In parallel, run these steps:
|
|
//
|
|
// TODO: in parallel
|
|
|
|
// Step 23.1. Let unloadPromptCanceled be the result of checking if unloading
|
|
// is canceled for navigable's active document's inclusive descendant navigables.
|
|
let unload_prompt_canceled = doc.check_if_unloading_is_cancelled(false, CanGc::from_cx(cx));
|
|
// Step 23.2. If unloadPromptCanceled is not "continue",
|
|
// or navigable's ongoing navigation is no longer navigationId:
|
|
//
|
|
// TODO: Check for ongoing navigation
|
|
if !unload_prompt_canceled {
|
|
// Step 23.2.1. Invoke WebDriver BiDi navigation failed with navigable
|
|
// and a new WebDriver BiDi navigation status whose id is navigationId,
|
|
// status is "canceled", and url is url.
|
|
// TODO
|
|
// Step 23.2.2. Abort these steps.
|
|
return;
|
|
}
|
|
|
|
// Step 23.9. Attempt to populate the history entry's document for historyEntry,
|
|
// given navigable, "navigate", sourceSnapshotParams, targetSnapshotParams,
|
|
// userInvolvement, navigationId, navigationParams, cspNavigationType,
|
|
// with allowPOST set to true and completionSteps set to the following step:
|
|
window.send_to_constellation(ScriptToConstellationMessage::LoadUrl(
|
|
load_data,
|
|
history_handling,
|
|
target_snapshot_params,
|
|
));
|
|
}
|
|
|
|
/// <https://html.spec.whatwg.org/multipage/#determining-the-creation-sandboxing-flags>
|
|
pub(crate) fn determine_creation_sandboxing_flags(
|
|
browsing_context: Option<&WindowProxy>,
|
|
element: Option<&Element>,
|
|
) -> SandboxingFlagSet {
|
|
// To determine the creation sandboxing flags for a browsing context
|
|
// browsing context, given null or an element embedder, return the union
|
|
// of the flags that are present in the following sandboxing flag sets:
|
|
match element {
|
|
// If embedder is null, then: the flags set on browsing context's
|
|
// popup sandboxing flag set.
|
|
None => browsing_context
|
|
.and_then(|browsing_context| browsing_context.document())
|
|
.map(|document| document.active_sandboxing_flag_set())
|
|
.unwrap_or(SandboxingFlagSet::empty()),
|
|
Some(element) => {
|
|
// If embedder is an element, then: the flags set on embedder's
|
|
// iframe sandboxing flag set.
|
|
// If embedder is an element, then: the flags set on embedder's
|
|
// node document's active sandboxing flag set.
|
|
element
|
|
.downcast::<HTMLIFrameElement>()
|
|
.map(|iframe| iframe.sandboxing_flag_set())
|
|
.unwrap_or(SandboxingFlagSet::empty())
|
|
.union(element.owner_document().active_sandboxing_flag_set())
|
|
},
|
|
}
|
|
}
|
|
|
|
/// <https://html.spec.whatwg.org/multipage/#determining-the-iframe-element-referrer-policy>
|
|
pub(crate) fn determine_iframe_element_referrer_policy(
|
|
element: Option<&Element>,
|
|
) -> ReferrerPolicy {
|
|
// Step 1. If embedder is an iframe element, then return embedder's referrerpolicy
|
|
// attribute's state's corresponding keyword.
|
|
element
|
|
.and_then(|element| element.downcast::<HTMLIFrameElement>())
|
|
.map(|iframe| {
|
|
let token = iframe.ReferrerPolicy();
|
|
ReferrerPolicy::from(&*token.str())
|
|
})
|
|
// Step 2. Return the empty string.
|
|
.unwrap_or(ReferrerPolicy::EmptyString)
|
|
}
|
|
|
|
/// <https://html.spec.whatwg.org/multipage/#snapshotting-target-snapshot-params>
|
|
pub(crate) fn snapshot_target_snapshot_params(navigable: &WindowProxy) -> TargetSnapshotParams {
|
|
// TODO(jdm): This doesn't work for cross-origin parent frames.
|
|
let container = navigable.frame_element();
|
|
// the result of determining the creation sandboxing flags given targetNavigable's
|
|
// active browsing context and targetNavigable's container
|
|
let sandboxing_flags = determine_creation_sandboxing_flags(Some(navigable), container);
|
|
// the result of determining the iframe element referrer policy given
|
|
// targetNavigable's container
|
|
let iframe_element_referrer_policy = determine_iframe_element_referrer_policy(container);
|
|
TargetSnapshotParams {
|
|
sandboxing_flags,
|
|
iframe_element_referrer_policy,
|
|
}
|
|
}
|