Don't swallow errors coming from the shareSession call #2962
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A call to ensureSession() has two steps:
1. prepareSession(), where an outbound group session might get created
or rotated
2. shareSession(), where an outbound group session might get
encrypted and queued up to be sent to other devices
Both of those calls may mostly fail due to storage errors, yet only the
errors from prepareSession get propagated to the caller.
Errors from prepareSession will mean that you can't get an
outbound group session so you can't encrypt an event.
Errors from shareSession, especially if the error happens in the part
where the to-device requests are queued up to be sent out, mean that
other people will not be able to decrypt the events that will get
encrypted using the outbound group session.
Both of those cases are catastrophic, the second case is just much
harder to debug, since the error happens on another device at some
arbitrary point in the future.
Let's just return the error instead, people can then retry and the
storage issue might have been resolved, or at least the error becomes
visible when it happens.
richvdh
approved these changes
Dec 9, 2022
su-ex
added a commit
to SchildiChat/matrix-js-sdk
that referenced
this pull request
Jan 15, 2023
* Process `m.room.encryption` events before emitting `RoomMember` events ([\matrix-org#2914](matrix-org#2914)). Fixes element-hq/element-web#23819. * Don't expose `calls` on `GroupCall` ([\matrix-org#2941](matrix-org#2941)). * Support MSC3391: Account data deletion ([\matrix-org#2967](matrix-org#2967)). * Add a message ID on each to-device message ([\matrix-org#2938](matrix-org#2938)). * Enable multiple users' power levels to be set at once ([\matrix-org#2892](matrix-org#2892)). Contributed by @GoodGuyMarco. * Include pending events in thread summary and count again ([\matrix-org#2922](matrix-org#2922)). Fixes element-hq/element-web#23642. * Make GroupCall work better with widgets ([\matrix-org#2935](matrix-org#2935)). * Add method to get outgoing room key requests for a given event ([\matrix-org#2930](matrix-org#2930)). * Fix messages loaded during initial fetch ending up out of order ([\matrix-org#2971](matrix-org#2971)). Fixes element-hq/element-web#23972. * Fix #23919: Root message for new thread loaded from network ([\matrix-org#2965](matrix-org#2965)). Fixes element-hq/element-web#23919. * Fix #23916: Prevent edits of the last message in a thread getting lost ([\matrix-org#2951](matrix-org#2951)). Fixes element-hq/element-web#23916 and element-hq/element-web#23942. * Fix infinite loop when restoring cached read receipts ([\matrix-org#2963](matrix-org#2963)). Fixes element-hq/element-web#23951. * Don't swallow errors coming from the shareSession call ([\matrix-org#2962](matrix-org#2962)). Fixes element-hq/element-web#23792. * Make sure that MegolmEncryption.setupPromise always resolves ([\matrix-org#2960](matrix-org#2960)). * Do not calculate highlight notifs for threads unknown to the room ([\matrix-org#2957](matrix-org#2957)). * Cache read receipts for unknown threads ([\matrix-org#2953](matrix-org#2953)). * bugfix: sliding sync initial room timelines shouldn't notify ([\matrix-org#2933](matrix-org#2933)). * Redo key sharing after own device verification ([\matrix-org#2921](matrix-org#2921)). Fixes element-hq/element-web#23333. * Move updated threads to the end of the thread list ([\matrix-org#2923](matrix-org#2923)). Fixes element-hq/element-web#23876. * Fix highlight notifications increasing when total notification is zero ([\matrix-org#2937](matrix-org#2937)). Fixes element-hq/element-web#23885. * Fix synthesizeReceipt ([\matrix-org#2916](matrix-org#2916)). Fixes element-hq/element-web#23827 element-hq/element-web#23754 and element-hq/element-web#23847.
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The second part of #2908.
This closes: element-hq/element-web#23792.
Here's what your changelog entry will look like:
🐛 Bug Fixes