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LibDatabase+RequestServer: Store ByteString data as a BLOB

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We currently store ByteString as TEXT, but that is interpreted by SQLite
as UTF-8. All string-related operations will try to operate on the text
as if it is stored with UTF-8. We should use BLOB instead, which does
not make any encoding assumptions.

The only user of ByteString in the database currently is the HTTP disk
cache. So we bump its version here to remove existing data. Again, we
will want to handle changes like this more gracefully eventually.
This commit is contained in:
Timothy Flynn
2025-11-07 07:20:26 -05:00
committed by Tim Flynn
parent 1c2c9a859a
commit d5c00a493c
Notes: github-actions[bot] 2025-11-12 14:09:10 +00:00 
Author: https://github.com/trflynn89
Commit: https://github.com/LadybirdBrowser/ladybird/commit/d5c00a493ca
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6675
Reviewed-by: https://github.com/gmta
Reviewed-by: https://github.com/konradekk
2 changed files with 7 additions and 4 deletions
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9
Libraries/LibDatabase/Database.cpp
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@@ -119,9 +119,11 @@ void Database::apply_placeholder(StatementID statement_id, int index, ValueType
{
auto* statement = prepared_statement(statement_id);
if constexpr (IsOneOf<ValueType, String, ByteString>) {
if constexpr (IsSame<ValueType, String>) {
StringView string { value };
SQL_MUST(sqlite3_bind_text(statement, index, string.characters_without_null_termination(), static_cast<int>(string.length()), SQLITE_TRANSIENT));
} else if constexpr (IsSame<ValueType, ByteString>) {
SQL_MUST(sqlite3_bind_blob(statement, index, value.characters(), static_cast<int>(value.length()), SQLITE_TRANSIENT));
} else if constexpr (IsSame<ValueType, UnixDateTime>) {
apply_placeholder(statement_id, index, value.offset_to_epoch().to_milliseconds());
} else if constexpr (IsIntegral<ValueType>) {
@@ -148,8 +150,9 @@ ValueType Database::result_column(StatementID statement_id, int column)
auto const* text = reinterpret_cast<char const*>(sqlite3_column_text(statement, column));
return MUST(String::from_utf8(StringView { text, strlen(text) }));
} else if constexpr (IsSame<ValueType, ByteString>) {
auto const* text = reinterpret_cast<char const*>(sqlite3_column_text(statement, column));
return ByteString { text, strlen(text) };
auto length = sqlite3_column_bytes(statement, column);
auto const* text = sqlite3_column_blob(statement, column);
return ByteString { reinterpret_cast<char const*>(text), static_cast<size_t>(length) };
} else if constexpr (IsSame<ValueType, UnixDateTime>) {
auto milliseconds = result_column<sqlite3_int64>(statement_id, column);
return UnixDateTime::from_milliseconds_since_epoch(milliseconds);