Files
multica/apps
Shalin 7fcc8159ba fix(desktop): route attachment downloads through Electron native system on Linux (#2441)
* fix(desktop): route attachment downloads through Electron native system on Linux

Replaces shell.openExternal with webContents.downloadURL for attachment
downloads in the Electron desktop app. On Linux/Ubuntu, opening a
CloudFront URL serving Content-Type: text/html via the system browser
causes the browser to render the HTML inline instead of downloading.
Electron's native downloadURL shows a save dialog and saves the file
directly, fixing HTML downloads regardless of Content-Type.

* test(views): update desktop download test to match the new downloadURL bridge

The test still referenced the old openExternal bridge. Updated it to
assert desktopAPI.downloadURL() instead.

* fix(desktop): add URL scheme allowlist to download IPC handler

Addresses review feedback on PR #2441.

The file:download-url IPC handler called webContents.downloadURL
directly, bypassing the http/https allowlist enforced by
openExternalSafely. Adds downloadURLSafely() alongside the existing
openExternalSafely wrapper, reuses the same isSafeExternalHttpUrl
check, and extends the ESLint no-restricted-syntax rule to ban direct
webContents.downloadURL calls.

Also handles nits: observable warning on null mainWindow, removes dead
openExternal field from DesktopBridge, adds desktop-branch failure test.
2026-05-13 14:44:33 +08:00
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