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mangaBookmark/.env.example
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sulthan 8f752ed86b feat(backend): per-Reader userscript credential with UI install and rotation (#24)
Each Reader's userscript credential is derived from TOKEN_KEY, their
Discord id and a token epoch (HMAC-SHA256, hex); only its SHA-256 sits in
readers.token_sha256, so install URLs survive restarts while a database
leak yields nothing but hashes. One credential authenticates the script
download path and the API bearer header.

- internal/token: derivation + hashing; migration 0006 adds token_epoch
- seed refreshes the owner's epoch-0 hash only before first rotation
- httpmw.Auth resolves the acting Reader from the credential hash and
  stashes it in the request context; the retired API_TOKEN resolves to
  the owner until API_TOKEN_GRACE_UNTIL, logged per use, on both the
  bearer and script-download paths
- userscript handler renders the bindmounted file with the resolved
  Reader's credential substituted for __API_TOKEN__; a legacy-path
  request during grace serves the derived credential, so devices
  self-migrate on their next update poll
- web UI: Userscripts panel with session-gated install endpoints that
  render the script directly (credential never in markup, address bar
  or a redirect) and confirm-gated rotation; atomic epoch bump + hash
  rewrite in the store
- both userscripts carry __API_TOKEN__ placeholders; the committed
  global-token literal is removed (rotating at deploy retires it for
  real — it survives in git history)
- env: TOKEN_KEY required, API_TOKEN/API_TOKEN_GRACE_UNTIL retire the
  legacy credential; docs and compose updated
2026-08-08 09:34:52 +07:00

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# Copy to .env and fill in. Never commit the real .env.
# Secret every Reader's userscript credential is derived from (issue #24):
# the backend rebuilds install URLs from it, and only SHA-256 hashes of the
# credentials ever touch the database. Generate one:
# openssl rand -hex 32
TOKEN_KEY=changeme-generate-a-long-random-token
# Retired global credential, kept only during the cutover window so
# already-installed scripts keep working. Remove both it and
# API_TOKEN_GRACE_UNTIL once the window has passed and every device has
# reinstalled through the web UI.
# API_TOKEN=
# Moment the retired credential stops resolving to the owner (YYYY-MM-DD or
# RFC3339). Enforced in code on every request; unset means it is already dead.
# API_TOKEN_GRACE_UNTIL=2026-08-22
# The owner's Discord user ID — the one Reader every bookmark belongs to
# (seeded at startup). Discord snowflake, e.g. 1046923170000000000.
OWNER_DISCORD_ID=changeme-your-discord-user-id
# Comma-separated origins allowed to call the API (CORS). Both Asura domains
# plus Demonic, Comix, Kagane, and the two novel sites. Add/remove as the
# sites' hostnames change.
ALLOWED_ORIGINS=https://asuracomic.net,https://asurascans.com,https://demonicscans.org,https://comix.to,https://kagane.to,https://novelfull.com,https://lightnovelworld.net
# Password for the bundled Postgres container, and therefore half of the
# DATABASE_URL compose builds for the backend. Generate one:
# openssl rand -hex 24
POSTGRES_PASSWORD=changeme-generate-a-long-random-password
# Override only to point the backend at a Postgres compose does not run.
# DATABASE_URL=postgres://user:pass@host:5432/bookmarks?sslmode=require
# --- Prod override (Traefik) only ---
# Subdomain Traefik routes to this service (required by the prod override).
# BOOKMARK_API_HOST=bookmark-api.example.com
# Traefik's docker network name, if not "proxy".
# PROXY_NETWORK=proxy
# Traefik HTTPS entrypoint + cert resolver names, if yours differ from these.
# TRAEFIK_ENTRYPOINT=websecure
# TRAEFIK_CERTRESOLVER=le
# --- Web UI (Discord OAuth) ---
# Sign-in is a Discord authorization code grant (ADR-0002): the owner signs in
# with Discord, and guild membership gates access. Create the application at
# https://discord.com/developers/applications and register the exact callback
# URL ($BOOKMARK_WEB_HOST/auth/discord/callback) as an OAuth2 redirect.
DISCORD_CLIENT_ID=
DISCORD_CLIENT_SECRET=
# The guild whose membership gates sign-in (Developer Mode -> right-click the
# server -> Copy Server ID).
DISCORD_GUILD_ID=
# Exact callback URL, e.g. https://bookmark.example.com/auth/discord/callback.
# Discord matches it verbatim, so it must equal the registered redirect.
DISCORD_REDIRECT_URI=
# Optional: a role snowflake members must hold on top of guild membership.
# Empty (the default) means membership alone suffices.
# DISCORD_REQUIRED_ROLE=
# Subdomain Traefik routes to the browser UI (required by the prod override).
# Left commented on purpose: an example value here would be a silent
# wrong-hostname fallback, and Traefik would publish the UI router on a domain
# you do not own. The same container also answers on BOOKMARK_API_HOST for the
# userscript's API.
# BOOKMARK_WEB_HOST=bookmark.example.com
# --- Latest-chapter poller ---
# The backend re-checks each bookmarked series' newest published chapter on its
# own schedule, so latest_chapter stays fresh even when you never open the manga
# sites. This runs in parallel with the userscript's own in-browser check.
# Set to 0 to turn it off entirely.
# LATEST_CHAPTER_POLL_ENABLED=1
#
# Two independent clocks. COOLDOWN is how long one series rests between checks;
# INTERVAL is how often the poller wakes up and looks for series past that
# cooldown. Shortening INTERVAL cannot shorten a COOLDOWN.
# LATEST_CHAPTER_POLL_COOLDOWN=1h # per series, floor 15m
# LATEST_CHAPTER_POLL_INTERVAL=10m # how often to wake
# LATEST_CHAPTER_POLL_BATCH=14 # series per wake
# LATEST_CHAPTER_POLL_STAGGER=20s # delay between fetches in a batch
#
# Uses a ticker, not an immediate first run: the first poll happens one
# INTERVAL after startup, not at startup. A container restarting more often
# than INTERVAL never polls.
#
# BATCH x (COOLDOWN / INTERVAL) series hold the cooldown cadence — 84 with these
# defaults. Beyond that the cadence stretches uniformly rather than breaking;
# raise BATCH or lower INTERVAL. Keep BATCH x STAGGER under INTERVAL.
# Headless-shell CDP endpoint for sites behind a JavaScript challenge (kagane).
# Unset disables browser polling; those sites then rely on the userscript alone.
# Leave commented — the compose files' own default (ws://172.28.0.10:9222) is
# correct. Do NOT set this to the "headless-shell" DNS name: Chrome's DevTools
# HTTP handler 500s any /json/version request whose Host header isn't an IP or
# "localhost", which silently breaks every kagane poll.
# BROWSER_WS_URL=ws://172.28.0.10:9222