b1588bba27a956de9bf640f61297962da866d9f4
7 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 sulthan
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741b23322b |
Fix comix titles and covers, kagane volume chapters, and kagane cover rendering (#37)
Fixes five reported symptoms across comix.to and kagane.to. Diagnosing them turned up two latent bugs underneath, both of which had to be fixed for the kagane cover work to function at all.
## Reported symptoms and their causes
| # | Symptom | Cause |
|---|---------|-------|
| 1 | comix bookmark titled `Comix - Read Comics online for free` | comix is an SPA that rewrites `document.title` on client routing but never touches the server-rendered `og:title`. The adapter read `og:title`, so a cold load stored the homepage's title. |
| 2 | next comix bookmark gets the *previous* series' title | Same cause. After an in-page hop, `og:title` still holds whatever page loaded first. |
| 3 | comix cover shows the placeholder | comix serves no `og:image` at all, so `coverFromPage()` had nothing to read. |
| 4 | kagane chapter never appears in the bookmark list | Reader URLs carry no chapter number, so it is parsed out of `og:title`. Volume-numbered series render `"<Series> - Volume <v> Chapter <n>"`, which the suffix regex did not match, so `chapterNum` came back null and nothing was recorded. |
| 5 | kagane title includes the chapter, e.g. `SP Baby - Volume 1 Chapter 1` | Same unmatched regex — the tail was never stripped. One fix covers 4 and 5. |
| 6 | kagane cover blocked in the web UI | kagane serves covers behind its Cloudflare challenge **and** with `cross-origin-resource-policy: same-origin`. No `<img>` on the UI's origin can load one even from a browser holding the clearance cookie. Hot-linking cannot be made to work. |
## What changed
**Userscript.** comix titles now come from `document.title` with the chapter page's `" - Ch.<n>"` tail stripped, and the cover is the `img` whose `alt` matches the cleaned title. comix fills `document.title` a beat *after* the URL changes — later than the nav watcher's 300 ms snapshot — so the watcher also re-detects when the `detect()` signature changes, not only when the URL does. The kagane suffix regex takes an optional `Volume <v> ` segment. All three page shapes were captured live on 2026-08-08 and pinned as regression tests.
**Cover proxy.** `Bookmark.CoverURL()` rewrites a stored kagane `og:image` to `/img/kagane/{id}`; templates render `.CoverURL` instead of `.Cover`. The endpoint is session-gated like every other UI route and fetches through the shared headless browser, which is same-origin with kagane and so satisfies both the challenge and the CORP header. Results are memoised in-process, so a cover costs one navigation per deployment lifetime. With `BROWSER_WS_URL` unset the endpoint answers 404 rather than reaching for a nil fetcher — the same degrade-to-userscript behaviour the poller already has.
The image id is matched against a UUID regex before it reaches the browser. That gate is load-bearing rather than tidiness: the cover is a stored client-supplied string, so an unvalidated one turns this endpoint into an SSRF primitive aimed at the deployment's own network. `ServeMux` path-cleans a traversal into a redirect before the handler runs, but the handler does not depend on that, and a test pins it.
## Two latent bugs found underneath
**`BrowserFetcher.run` never let a challenge solve.** It navigated, waited for `body`, read once, and closed the tab — roughly half a second end to end. The Cloudflare interstitial has a `body` too, so `WaitReady` was satisfied by the challenge page itself. This made the challenge *unclearable* rather than merely slow: an interstitial needs several seconds of a live page to solve itself and write clearance into the browser's shared cookie jar, so tearing the tab down first means every subsequent call is challenged exactly like the one before it. `run` now holds one tab and re-reads until the caller's predicate reports an answer, bounded by `challengeTimeout` and the caller's own deadline. Exhausting the budget maps back to the 403 the poller already expects, keeping a challenged site distinct from a broken transport.
**`chromedp/headless-shell` cannot clear kagane's challenge at all.** It is a stripped Chrome build and the tells are structural rather than a header: `navigator.webdriver` is true, the plugin list is empty, and the client hints are Chromium- rather than Chrome-branded. Overriding `webdriver` through CDP was tried on its own and changed nothing.
All measured 2026-08-08 from one IP against the same cover, so the comparisons are like for like:
| Browser | Result |
|---------|--------|
| `chromedp/headless-shell:stable` | never cleared (90 s) |
| `zenika/alpine-chrome` | never cleared — ships Chrome 124, old enough that Cloudflare refuses it and old enough to break chromedp's CDP structs |
| `google-chrome`, default UA | never cleared (60 s) — `--headless=new` advertises `HeadlessChrome` |
| `google-chrome`, stock UA, `TZ=UTC` | never cleared (90 s) |
| `google-chrome`, stock UA, any non-UTC `TZ` | **cleared in ~4 s** |
Both remaining tells are load-bearing, and each was tested in isolation. `chrome/` is a Debian image with `google-chrome-stable`, a UA whose version is read back out of the binary at startup (a hardcoded one would drift out of step with the `Sec-CH-UA` hints on the next Chrome update and become a fresh tell), and no `--enable-automation`.
### The timezone tell: UTC, not a country mismatch
The first pass concluded the zone had to match the egress IP's country. Re-measuring against the actual deployment case shows that was wrong, and the correction is in `1552dd1`.
The original inference read the host's `/etc/timezone` (`Asia/Bangkok`) and assumed a Thai egress. It isn't — this host egresses from an Indonesian IP. `Asia/Bangkok` cleared not because it matched a country but because it simply isn't UTC, and the two share +07, which hid the distinction. Same container, same Indonesian IP:
| `TZ` | Result |
|------|--------|
| `UTC` | never cleared (60 s, **twice**) |
| `Asia/Jakarta` | cleared in 4 s |
| `America/New_York` | cleared in 4 s |
`America/New_York` matches neither the country nor the offset nor the hemisphere and clears just as fast. A UTC clock is itself the bot signal — Cloudflare scores it as the datacenter default — and any real zone satisfies the check. `BROWSER_TZ` therefore needs a plausible zone, not a geolocated one, and a deployment that changes region need not keep it in sync.
One sharp edge remains: the usual `-v /etc/localtime:/etc/localtime:ro` does **not** work. Chrome resolves the zone through ICU, which takes the name from that path's symlink target and ignores the file's contents, so glibc reports the host zone while Chrome still reports UTC. `/etc/timezone` carries the name and is mounted instead.
Chrome also binds its DevTools port to loopback and silently ignores `--remote-debugging-address`, which is why headless-shell fronted it with socat. This image does the same, so it stays a drop-in: the compose service keeps the `headless-shell` name and its pinned address, and `BROWSER_WS_URL` is unchanged.
## Verification
```
go test ./... all packages ok
node --test 37 + 12 pass, 0 fail
SMOKE_BROWSER_WS_URL=... go test -run TestSmokeKagane ./internal/latest
TestSmokeKaganeImage PASS (5.29s) fetched 56710 bytes of image/webp
TestSmokeKaganeGet PASS (1.17s) status=200, real chapter-list JSON
```
The smoke test ran against the exact compose configuration — built image, empty `BROWSER_TZ`, `/etc/timezone` mounted, cold profile — hitting real kagane.to. It skips unless `SMOKE_BROWSER_WS_URL` names a sidecar, so `go test ./...` stays hermetic and Docker-only.
A red smoke run means the challenge is not clearing from that IP, which is a live, time-varying fact to re-check rather than necessarily a defect.
## Security invariants
- Auth unchanged. `/img/kagane/{id}` is session-gated by `requireSession`, the same guard as every other UI route.
- Outbound fetch gated: the id is UUID-validated before it reaches the browser, keeping the existing rule that a client-supplied string never selects a fetch target unchecked.
- No new secrets, no new logging of credentials, no change to CORS, sessions, or crypto.
- Templates still escape everything; `.CoverURL` returns a plain string and is not wrapped in `template.HTML`/`URL`.
- One new dependency-free image (`chrome/`) built from Debian plus Google's own apt repo; no new Go modules.
## Deploying
Needs `docker compose build headless-shell`.
**A UTC host must set `BROWSER_TZ`, or kagane silently stops working.** With it unset the sidecar falls back to the host's `/etc/timezone`; on a UTC server that yields UTC, which is the one value that never clears. Any real zone works — `BROWSER_TZ=Asia/Jakarta` for the current deployment. `.env.example` now documents this; it previously did not mention the knob at all.
Only the browser sidecar reads `BROWSER_TZ`. The backend keeps its UTC clock, and stored timestamps are unix ms, so nothing else shifts.
## Deliberately not done
Retry/backoff around the cover proxy, and a panel-side cover fix. The panel renders no covers, and covers cache in-process after the first fetch. Worth adding if kagane starts rate-limiting.
## Correction after review of the deployment case
`1552dd1` was added after the branch was first pushed: the deployment host runs UTC with an Indonesian egress IP, which prompted re-measuring the timezone claim and falsifying it. The earlier commits' reasoning is left intact rather than rebased away, so the diagnostic trail — including the wrong turn and what disproved it — stays readable.
Reviewed-on: #37
Co-authored-by: Sulthan Zaki <sultankiki05@gmail.com>
Co-committed-by: Sulthan Zaki <sultankiki05@gmail.com>
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sulthan
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2ef769d421 |
Open registration to guild members (#27) (#36)
Closes #27. Guild membership is now the whole gate. `discordCallback` checks membership (and `DISCORD_REQUIRED_ROLE` when set), then `Store.EnsureReader` creates the Reader on first sight and returns the same row on every later login. The refusal returns before `EnsureReader`, so a turned-away sign-in leaves no row behind. `OWNER_DISCORD_ID` still seeds the owner, but only as the administrator — it no longer gates login. The cutover grace path goes with it: `API_TOKEN`, `API_TOKEN_GRACE_UNTIL` and the legacy branch in `httpmw.ResolveReader` are deleted, so a credential authenticates exactly one Reader or nothing. `userscript.Handler` drops its re-derivation too — the resolved path segment is already the credential. New surfaces: an empty library offers both install links (behind the tab-specific empty states, so "No favourites yet" still wins), and the owner alone gets a Readers panel with `POST /readers/{id}/revoke`. The owner's own row is not revocable — 404, not a self-logout. Isolation is asserted from both directions for read, modify and delete, and the shared-series invariant is pinned: two Readers on one series produce one series row, two independent progresses, one poll per due cycle, and one Reader's delete leaves the other's bookmark and the poll intact. Verified: `go test ./...` green; live smoke against a throwaway Postgres — empty-library state in both colour branches, roster rendering, a real revoke through the panel (target 401s next request, owner untouched), owner self-revoke refused 404, per-Reader `/u/<cred>` and bearer auth both 200 with 404 for an unknown credential. Reviewed-on: #36 Co-authored-by: Sulthan Zaki <sultankiki05@gmail.com> Co-committed-by: Sulthan Zaki <sultankiki05@gmail.com> |
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sulthan
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c2b47eb05b |
Offer the userscripts as a download for mobile Violentmonkey (#26) (#35)
Co-authored-by: Sulthan Zaki <sultankiki05@gmail.com> Co-committed-by: Sulthan Zaki <sultankiki05@gmail.com> |
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sulthan
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27cf0955de |
Per-Reader userscript credential with UI install and rotation (#24) (#32)
Closes #24. Child of #18; based on current main (includes Postgres, Reader table, Discord OAuth).
## What
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` (new `token_epoch` column, migration 0006). One credential authenticates the script download path and the API bearer header.
- `internal/token`: derivation + hashing; the seed refreshes the owner's epoch-0 hash only before first rotation, so a restart can never resurrect a rotated-away credential
- `httpmw.Auth`/`ResolveReader`: acting Reader resolved from the credential hash, stashed in request context; the retired global `API_TOKEN` resolves to the owner until `API_TOKEN_GRACE_UNTIL` (enforced in code, 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 installed devices self-migrate on their next update poll
- Web UI: "Userscripts" panel — session-gated install endpoints render the script directly (credential never in markup, address bar, or a redirect), confirm-gated rotation with an atomic epoch bump + hash rewrite and a reinstall warning
- Both userscripts carry `__API_TOKEN__` placeholders; the committed global-token literal is removed
## Design note
Credentials are derived rather than stored-random because the server must rebuild install URLs after restarts while the DB holds only hashes. HMAC output is high-entropy and unbrute-forceable; the AC's intent (unguessable, DB-leak-proof) is met.
## Deploy (also in DEPLOY.md)
1. Add `TOKEN_KEY` (`openssl rand -hex 32`) — required; changing it later invalidates every credential.
2. Keep `API_TOKEN` + set `API_TOKEN_GRACE_UNTIL` for the 14-day window.
3. After deploy, sign in → Userscripts → reinstall both scripts on every device. This also retires the old global credential for real — its literal survives in git history (present since
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sulthan
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bcc6b45515 |
feat(backend): Discord OAuth login with DB-backed sessions (#23) (#31)
Implements #23 per ADR-0002. - Discord authorization code grant (identify + guilds.members.read), form-encoded token exchange - Guild membership gate via the single-guild endpoint; optional DISCORD_REQUIRED_ROLE (empty default) - Owner Discord ID is the only identity allowed to sign in - Sessions are DB rows with opaque random ids; cookie carries only the id; expiry enforced; delete = revoke - HMAC session signing, derived key, and WEB_PASSWORD removed; no replacement signing secret - Login rate limiting preserved on the callback - Full flow tested through the real router against a local Discord stub (DISCORD_API_BASE) - Env: DISCORD_CLIENT_ID/_CLIENT_SECRET/_GUILD_ID/_REQUIRED_ROLE/_API_BASE/_REDIRECT_URI; docs updated go test ./... passes. Reviewed-on: #31 Co-authored-by: Sulthan Zaki <sultankiki05@gmail.com> Co-committed-by: Sulthan Zaki <sultankiki05@gmail.com> |
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sulthan
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4229c179b0 |
rebrand: MangaBM → BookmarkManager, add novel library support (#15)
Two intertwined changes — the rebrand and the novel library were developed on
the same branch because the novel UI plumbing is part of the new "Bookmark
Manager" wordmark in the web shell.
## What it does
- **Rebrand**: MangaBM → BookmarkManager across the Go module, compose stack,
env vars, Traefik hostnames, container/image names, userscript storage
prefixes (`mangabm:cache` → `bmgr:manga:cache`, `mangabm:queue` → `bmgr:manga:queue`),
and docs.
- **Novel library**: same backend, two libraries. New `kind` column splits
bookmarks into `manga` / `novel`; PUT validates it. Two userscripts:
- `manga-bookmark.user.js` — unchanged behaviour, just stamps its own `kind`.
- `novel-bookmark.user.js` — separate Violentmonkey install with adapters
for **novelfull.com** (polled via headless browser — Cloudflare JS
challenge) and **lightnovelworld.net** (polled via plain TLS).
- **Web UI**: library switch on the app shell. Login art, libswitch, and
novel-site colours from the Cinder design snapshot.
## Plumbing
- `addedColumns` ALTER for `kind` runs on first start after upgrade; every
pre-existing row is backfilled to `'manga'`. No manual SQL, no down-time.
- `ALLOWED_ORIGINS` gains the two novel sites.
- New `NOVEL_USERSCRIPT_PATH` env (default `/userscript/novel-bookmark.user.js`),
bindmounted alongside the manga script.
- Traefik router names `mangabm*` → `bmapi*` / `bmweb*`.
## Test status
- `go test ./...` — green
- `node --test userscript/test/logic.test.js` — 34 pass
- `node --test userscript/test/novel-logic.test.js` — 11 pass
- `node --check` on both userscripts — clean
## Notes for the redeploy
.env keys were renamed (`MANGA_API_HOST` → `BOOKMARK_API_HOST`,
`MANGA_WEB_HOST` → `BOOKMARK_WEB_HOST`). Update DNS / Traefik labels on the
prod override before pulling, otherwise the public hostnames go dark.
See the redeploy instructions I'll post next to this PR.
Reviewed-on: #15
Co-authored-by: Sulthan Zaki <sultankiki05@gmail.com>
Co-committed-by: Sulthan Zaki <sultankiki05@gmail.com>
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sulthan
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180ee78b1f |
Add comix.to and kagane.to support (#13)
Tracks read progress on comix.to and kagane.to alongside asura and demonic, in both the userscript and the backend. Implements `docs/superpowers/plans/2026-08-03-comix-kagane-support.md`. ## Userscript - `comix` adapter — `/title/<id>-<slug>`; only the id prefix is identity (the slug follows the title). No `og:image`, so the cover is matched by `alt`. - `kagane` adapter — reader URLs are uuids with no chapter number, so it comes out of `og:title`; anchor scanning is structurally impossible, replaced by `latestChapterFromApi` against kagane's same-origin JSON API. - `seriesId` threaded through `latestChapterFromAnchors` so comix can scope its scan to its own series and a recommendation strip cannot win the maximum. - `@match` for both hosts, panel chips, v1.6.0. ## Backend - `latestChapterFrom` cases: comix parses the SSR JSON state blob (`latestChapterUrl`, scoped to the series id); kagane parses API JSON (`chapter_no`). - Poller allowlist extended; `Poller.BrowserFetch` with `fetcherFor(site)` routes kagane to a browser fetcher. Nil means kagane is not polled at all — never a fallback to the TLS fetcher, which would only ever retrieve a challenge page. - `BrowserFetcher`: chromedp against a `headless-shell` sidecar. kagane sits behind a Cloudflare JS challenge that no TLS fingerprint clears, and the request is made inside the page rather than by replaying `cf_clearance`. - `BROWSER_WS_URL` wiring, sidecar in both compose files (no `ports:`, dedicated non-external network), Dockerfile on `golang:1.26-alpine` — chromedp requires go 1.26. - Web UI `--comix` / `--kagane` tokens in both colour branches. ## Notes for review - `series_url` is client-supplied and a headless browser is a strong SSRF primitive, so kagane's host is pinned twice: in `fetchableSeriesURL` and again in `kaganeAPIURL`. - Three chained defects found during verification made the browser path dead under Compose (sidecar flag collision, Chrome's Host-header DNS-rebinding check, the wrong chromedp option). Fixed; the compose comments record the wrong configurations too, so they don't get "simplified" back. - `ALLOWED_ORIGINS` now includes both new origins. Without it every write from comix/kagane silently fails CORS preflight, parks in the retry queue, and drops at the cap. ## Verification 221 backend tests, 32 userscript tests, static `CGO_ENABLED=0` build, both compose configs. Two gaps, both real: 1. The userscript on live pages via Violentmonkey needs a human browser profile — not run. Check: comix series page (title/cover, no chapter), comix chapter page (records the number; an *older* chapter must not regress it), comix SPA navigation without reload, kagane series page (og:image cover), kagane reader (number from `og:title`), both chips opening the right sites. 2. The kagane browser path has not completed end-to-end anywhere. Dial/navigate/fetch is confirmed, but Cloudflare 403'd headless-shell's Chrome on every attempt from the dev sandbox, and comix's poll-through-Docker was blocked by that environment's TLS interception. Both environment-dependent rather than branch defects — the first real deploy is the actual verification. Reviewed-on: #13 Co-authored-by: Sulthan Zaki <sultankiki05@gmail.com> Co-committed-by: Sulthan Zaki <sultankiki05@gmail.com> |