feat(matrix): Matrix rooms as Talk conversations - #19214
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Talk can now act as a Matrix client: users link a Matrix account on an admin-configured homeserver and their Matrix rooms appear as ordinary Talk conversations - in the web UI as well as in the unchanged mobile and desktop apps. Protocol layer: new standalone, framework-free library nextcloud/matrix-client-php under matrix-client/ (PSR-18/17, no OCP imports, own test suite) including a pure-PHP implementation of the Matrix end-to-end encryption stack (Olm, Megolm, SAS verification, key backup) that is verified byte-for-byte against Element's vodozemac in an interop harness. Talk integration under lib/Matrix/: background /sync with per-account locks and opportunistic foreground sync, ingestion of messages, state, membership and power levels into Talk rooms/attendees (new actor type 'matrix', object type 'matrix'), decrypt-on-ingest with placeholder replacement, key sharing/requests and device verification (emoji), room key backup restore, media proxy with thumbnails and Save-to-Nextcloud, uploads as (encrypted) Matrix attachments, reactions/edits/deletions/ threads/read receipts in both directions, room creation/DM/join-by-address and the public room directory, invitations through the existing federation invitation API, per-room capability detection exposed as matrixCapabilities, admin settings (homeservers, policies, sync health), occ commands (talk:matrix:*) and documentation (docs/matrix.md, full specification in docs/matrix/SPEC.md). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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I only wanted to play around with this as an experiment. I didn't expect that it just works. |
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Summary
Talk can act as a Matrix client: users link a Matrix account on an admin-configured homeserver and their Matrix rooms appear as ordinary Talk conversations — in the web UI as well as in the unchanged mobile and desktop apps (Matrix conversations are regular conversations at the OCS API level, plus additive
matrixRoomId/matrixCapabilitiesfields).Protocol layer
nextcloud/matrix-client-phpundermatrix-client/(PSR-18/17/3/20, noOCPimports — CI-enforced, own test suite, works against a plain Synapse:examples/echo-bot.php)tests/interop/vodozemac_check.py, 39 checks)Talk integration (
lib/Matrix/)/syncper linked account (per-account locks, adaptive interval) + opportunistic foreground sync while a conversation is viewed; history backfill with lazy scroll-backmatrixfor members without a Nextcloud account (names, avatars, mentions)#alias,!id, matrix.to,matrix:), public room directory, knock; invitations reuse the existing federation-invitation APItalk:matrix:*), docs (docs/matrix.md) and the full specification incl. decision log (docs/matrix/SPEC.md,docs/matrix/PROMPTS.md)Test coverage
tests/php/Matrix/(17 tests)Status
🚧 Draft. Working end-to-end against matrix.org (36 rooms, E2EE, media) on our devel instance. Open points are listed in the spec's implementation-status section (Behat/Synapse CI wiring, OpenAPI regeneration, mobile smoke test, appservice push source, library extraction to its own repository).
🤖 Generated with Claude Code