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Redo key sharing after own device verification #2921

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weeman1337
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@weeman1337 weeman1337 commented Nov 30, 2022

If you don't set up key backup and verify one of your other devices, you won't receive keys for the messages of already viewed rooms. This PR triggers key requests after verifying an own device.

See the linked issue for a detailed description on how to reproduce it.

Fixes element-hq/element-web#23333

Before

key_verify_before.mp4

After

key_verify_after.mp4

Checklist

  • Tests written for new code (and old code if feasible)
  • Linter and other CI checks pass
  • Sign-off given on the changes (see CONTRIBUTING.md)

Here's what your changelog entry will look like:

🐛 Bug Fixes

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Looks great, 👏

@richvdh
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richvdh commented Jan 9, 2023

This got reverted in #3029. Just for reference as to why this can't work as-is: there can be easily be tens (or hundreds) of thousands of sent key-share requests in the store: cancelling and resending each of them will be hugely expensive, not only for the sending client, but also for any client which receives the requests and the homeservers between the two.

Generally cancelAndResendAllOutgoingKeyRequests seems like a footgun which needs to not exist.

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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Unable to decrypt after verification until reload
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