dorfteich/docs/architecture/adr
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#217: map IdP groups and roles onto the permission model
Declarative instance setting idpMapping.rules turns ID-token claims into
pond roles and the site-admin flag on every OIDC login — configuration,
not code. Mapped grants travel through the SAME GrantsService path as
manual ones (permission cache invalidated, collab access notify fires so
live sessions revalidate — asserted by test), never raw rows.

Ownership makes precedence explicit: role_grants.origin marks mapped
rows, users.is_site_admin_managed marks a mapping-set admin flag. The
mapping only creates and revokes what it owns — manual wins: hand-made
grants and hand-promoted admins are never revoked by a missing claim (a
manual toggle clears the marker and takes ownership). Removal of a claim
revokes the mapped grant and the managed flag on the next login. Every
mapping-driven change is audited with origin idp_mapping.

Failure containment: unknown pond slugs and the last-Pond-Admin
protection log-and-skip — a mapping problem must never become a login
lockout. Tests drive real OIDC logins against the fake IdP with group
claims: grant + working access, revocation incl. notify, manual-wins,
managed site-admin promote/demote/hands-off.

Documented in permissions.md (own section), ADR 0021, data-model.md and
the hardening guide (care rule: same PR).

Refs #217.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8
2026-07-31 13:09:11 +02:00
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0001-typescript-monorepo.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0002-postgresql.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0003-yjs-crdt-collaboration.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0004-tiptap-editor.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0005-react-vite-frontend.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0006-nestjs-prisma-backend.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0007-auth-sessions-oidc-ready.md #190: configurable session lifetime with a server-side idle timeout 2026-07-30 11:11:15 +02:00
0008-plugin-sandbox.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0009-import-export-converters.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0010-postgres-fulltext-search.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0011-file-storage-quotas.md Scaffold pnpm monorepo with lint, format, and test tooling 2026-07-04 19:06:27 +02:00
0012-i18n.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0013-versioning-and-trash.md Scaffold pnpm monorepo with lint, format, and test tooling 2026-07-04 19:06:27 +02:00
0014-gitea-actions-cicd.md Move the stage directories to /srv/DOCKER (host consolidation) 2026-07-14 12:43:29 +02:00
0015-backup-strategy.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0016-self-hosted-fonts.md Add architecture documentation, ADRs, and operations concept 2026-07-04 14:36:16 +02:00
0017-accessibility-by-default.md docs: ADR 0017 — Barrierefreiheit als Standard-Anforderung 2026-07-21 17:17:26 +02:00
0018-color-theming.md #186: pond accent theming — scoped derivation, cascade pond > user > default 2026-07-29 09:09:36 +02:00
0019-no-security-base-functions.md docs: VS-NfD readiness planning (ist-aufnahme, plan, ADRs 0019-0026, issue drafts) 2026-07-30 01:48:05 +02:00
0020-token-crypto-key-separation.md docs: VS-NfD readiness planning (ist-aufnahme, plan, ADRs 0019-0026, issue drafts) 2026-07-30 01:48:05 +02:00
0021-external-authentication.md #217: map IdP groups and roles onto the permission model 2026-07-31 13:09:11 +02:00
0022-page-classification.md #212: mark attachment downloads by filename prefix and companion file 2026-07-31 07:29:16 +02:00
0023-read-access-audit-trail.md #225: read-trail master switch and written purpose limitation 2026-07-31 12:35:18 +02:00
0024-reproducible-offline-deployment.md docs: VS-NfD readiness planning (ist-aufnahme, plan, ADRs 0019-0026, issue drafts) 2026-07-30 01:48:05 +02:00
0025-plugin-trust-model.md docs: VS-NfD readiness planning (ist-aufnahme, plan, ADRs 0019-0026, issue drafts) 2026-07-30 01:48:05 +02:00
0026-backup-target-restriction.md docs: VS-NfD readiness planning (ist-aufnahme, plan, ADRs 0019-0026, issue drafts) 2026-07-30 01:48:05 +02:00