Paste a link → fetch its OpenGraph/meta preview (title, description, image,
site) and show a rich card. User-triggered + persisted (never auto-fetches;
cached so it never re-fetches). Opt-in via a new admin setting
enable_url_unfurl (default on, rule 26).
Security (the whole point of this task): a new dependency-free unfurl.py
does the fetch with layered SSRF defenses — http/https only; resolve the
host and reject EVERY non-public address (private/loopback/link-local/
reserved/multicast/unspecified — blocks 169.254.169.254 etc.); connect to
the vetted IP with SNI so DNS-rebinding can't slip through; ≤3 redirects
each re-validated; 5s timeout; 512 KB cap; text/html only; blocking IO in a
worker thread. No server-side image fetch — the og:image URL is loaded by
the browser.
- note_link_previews table (migration 0020), one per (note, url); serialized
inline on notes (+ rides the sync pull feed read-only).
- POST /api/notes/<id>/unfurl {url} (owner-scoped, setting-gated, 502 on
fetch failure); DELETE /api/notes/<id>/previews/<id>.
- enable_url_unfurl exposed in public config so the UI hides the affordance
when disabled.
Frontend: LinkPreview.vue card; editor detects URLs in the body and offers a
"Preview <domain>" chip per un-previewed link (ensureDraft first), renders
preview cards with remove; card shows previews read-only. New link icon;
notes-store unfurl()/deletePreview().
Tests (DB-free): is_public_ip range blocking, validate_url scheme/parts,
extract_preview (OG + <title> fallback + relative-image resolve), endpoint
auth-guards.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm
A note's title+body is snapshotted on each edit that changes either, so an accidental overwrite can be viewed and restored (task 1906). Underwrites 'dump freely, nothing is lost'.
Backend: note_revisions table (migration 0014) + NoteRevision model; update_note records a revision of the PRE-edit state whenever title/body changes; GET /api/notes/<id>/revisions (newest 50) and POST /api/notes/<id>/revisions/<rev_id>/restore (snapshots the current state first so restore is itself undoable, then applies the revision with the usual title/body ripple — display name, links, #tags, backlinks). Title+body only in v1.
Frontend: a History toggle in the modal editor opens a panel of past versions (timestamp + preview) with per-row Restore. Store gains fetchRevisions/restoreRevision.
Migration 0014 runs on deploy; DB behavior operator-verified (no Postgres CI lane).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm
- Migration 0009: note_links (source_id, target_norm). Parse [[...]] from body on
create/update and rewrite the source's links. GET /api/notes/titles (owner
{id,title} index for client-side resolution); GET /api/notes/<id>/backlinks.
- Frontend: titles store; LinkedText renders [[Title]] styled on cards; editor
shows Links (outgoing, resolve/create-on-click) + Linked-from (backlinks),
clicking navigates the editor to the target note (board + search).
- notes store: fetchOne, createTitled. DB-free link-parser tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm
- Migration 0007: note_attachments (path/mime/size). Upload POST
/api/notes/<id>/attachments (multipart, png/jpeg/gif/webp, 12MB cap via
MAX_CONTENT_LENGTH) stored under Config.media_root() (first use of DATA_DIR);
owner/ACL-scoped GET serves the file (nosniff); DELETE removes row + file.
Note responses include attachments[].
- Frontend: notes store uploadAttachment (FormData)/deleteAttachment; editor
image button + paste-to-upload + thumbnail grid with remove; card shows the
first image as a cover.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm
- Label + NoteLabel models; migration 0004 (labels unique per owner + note_labels
join, cascade).
- /api/labels: list/create(idempotent)/rename(clash-checked)/delete, owner-scoped.
- PUT /api/notes/<id>/labels to set a note's labels (validated against owned).
- Note responses now include labels[] (merged via one explicit join query — no
lazy relationship); GET /api/notes?...&label=<id> filters by label.
- DB-free auth-guard tests for labels endpoints.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm
- users.is_admin; first registered user becomes admin; registration gated by the
allow_registration setting (first account always allowed). is_admin in
/api/auth/* responses; require_admin guard (live DB check).
- settings table + code registry (site_name, allow_registration, session_ttl_days)
with typed defaults — empty table = all defaults (rule 26). get/set/validate
service; GET /api/config (public) + GET/PATCH /api/settings (admin), live
session-TTL apply with no restart (rule 25).
- Cookie-signing secret now persisted in the DB (before_serving load-or-create),
so sessions survive restarts with no volume. Config: DATABASE_URL is the only
required env; SECRET_KEY + DATA_DIR are optional break-glass items.
- Migration 0003; DB-free tests for settings validation + admin guard.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm
Foundation & Identity backend for ThoughtSync:
- Quart app factory (create_app) with /api/health + SPA history-fallback
- async SQLAlchemy 2.0 + asyncpg engine/session (lazy; boots without a DB)
- native email+password auth via signed-cookie session (register/login/logout/me
+ login_required guard); bcrypt password hashing (72-byte safe)
- multi-user sharing-ACL spine (rule 47): users, groups, group_members, and a
polymorphic shares table + visible_to_user() SQL predicate (owner OR direct
share OR group share) that M1's notes will scope through
- Alembic async env (adapted from family pattern) + 0001 foundation migration
- DB-free unit tests (app/health/auth-guard, password roundtrip, ACL compile)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm
bvandeusenandClaude Opus 4.8