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Fail to display timeline history when joining E2E room.

See original GitHub issue

Steps to reproduce

Invited to e2e room and immediately join (this is a remote join if it makes a difference)

Outcome

Join the room, get told: You can't see earlier messages \n Encrypted messages before this point are unavailable.

Operating system

Ubuntu

Browser information

Version 103.0.5060.114 (Official Build) (64-bit)

URL for webapp

develop.element.io

Application version

Element version: 3e3f279469ad-react-a866005bea85-js-3907d1c28f87 Olm version: 3.2.12

Homeserver

jki.re

Will you send logs?

Yes

Issue Analytics

State:
Created a year ago
Comments:9 (5 by maintainers)

Top GitHub Comments

1reaction

richvdhcommented, Nov 16, 2022

It’s worth noting that Element only concerns itself with the most recent unable-to-decrypt message, and won’t show any messages before that, even if it has successfully decrypted them. (see https://github.com/matrix-org/matrix-react-sdk/blob/v3.60.0/src/components/structures/TimelinePanel.tsx#L1555-L1566) It’s far from clear to me that that is intended behaviour.

0reactions

osresearchcommented, Dec 2, 2022

There’s a another issue with e2e rooms for space members - “Users joining a private room within a space via “restricted” join rule have no way of accessing history” (https://github.com/vector-im/element-meta/issues/646). Allowing room admins to select all three of Encrypted, Access - Space members, and Members since the point in time of selecting this option produces a result that does not work. Inviting a space member to the group does not send the keys. Ironically making the rooms private and then explicitly inviting members does work, but defeats the purpose of a space membership.

There is a proposal to add a way to manually request access from other members (https://github.com/vector-im/element-meta/issues/750). Until then it seems like a warning that “this feature does not work (yet)” would be appropriate for space rooms to avoid creating lots of debugging confusion.

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