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Lotus CIandClaude Opus 5.5 3c3bb2e41c feat(auth): offer native OAuth sign-in on servers like matrix.org
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The login page looked for an OAuth issuer in .well-known
(m.authentication), which matrix.org no longer publishes, so its users
got the password / SSO compatibility forms. Detect native OAuth the way
the SDK finds the auth server for refresh: load /auth_metadata next to
the login flows. When present:
- Login shows "Continue with <server>" only (as Element does); a legacy
  SSO loginToken coming back from a redirect still completes.
- Register opens the auth server's sign-up page (prompt=create, where
  prompt_values_supported says so) instead of the legacy forms.
Servers without it (Lotus) are unchanged.

Checked against the live servers: matrix.org login and register show
"Continue with matrix.org" and no password form; matrix.lotusguild.org
keeps its password form.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5
2026-10-24 16:15:24 -04:00
Lotus CIandClaude Opus 5.5 70206d6033 chore(deps): matrix-js-sdk 41.7 -> 44.0 (#201)
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Picks up three releases of MatrixRTC / delayed-event fixes and
matrix-sdk-crypto-wasm 18.3.1 -> 18.9.0.

SDK 43 moved OAuth (MSC3861) into the SDK and dropped oidc-client-ts, so
the native-OAuth sign-in is ported:
- login discovers the auth server via /auth_metadata, registers with
  OAuth2.registerClient, and keeps the PKCE verifier + device in its own
  sessionStorage entry keyed by `state` (single use; CSRF check);
- refresh is done by the SDK (oauthClientId + onTokenRefresh); the #16
  cross-tab protection is kept by a narrow guard on refresh-token grants
  (the SDK calls the global fetch for OAuth, not fetchFn), which
  serialises them with a Web Lock and adopts a sibling tab's tokens;
- logout and forced logout revoke via mx.logout() (the SDK revokes at
  the auth server for OAuth sessions);
- the callback page parsed its params on every render, re-running the
  single-use code exchange in a loop; parsed once now.

Also: notification_type is deprecated in MSC4075 (ring in DMs, notify
elsewhere when omitted), _onRTCSessionMemberUpdate ->
ensureRecalculateSessionMembers, precache limit 6 -> 10 MB for the
7.8 MB crypto wasm.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5
2026-10-24 00:32:13 -04:00