Commit Graph

4 Commits

Author SHA1 Message Date
Administrator
0c6c502aab feat(diagnostics): network bind + fail-closed IP allowlist + host-in-code (Tailscale, like rd-diagnostics-mcp)
Matches the Real-Debrid-Downloader's rd-diagnostics-mcp model so the read-only
diagnostics agent is reachable over Tailscale (or any private tunnel) the same way
the downloader is, instead of requiring an SSH local-forward.

- lib/ip-allowlist.js (NEW): fail-closed IP allowlist — normalizeIp strips
  ::ffff:, loopback is always allowed, an empty allowlist accepts loopback ONLY
  (fail-closed), exact IP + CIDR (incl. the Tailscale CGNAT range 100.64.0.0/10) +
  wildcard rules. The real socket peer IP is the authority (never a forwarded header).
- remote-server.js: rejects non-allowlisted peers at connection (close 4005). Opt-in
  via config.allowlist (the existing remote-control server, which passes none, is
  unaffected). Loopback always passes, so local + SSH-forward use keeps working.
- Two bind modes (config diagnostics.bindMode): "local" -> 127.0.0.1 (default),
  "network" -> 0.0.0.0 but ONLY when a non-empty allowlist is set (else it stays
  loopback, fail-closed). The allowlist + token gate access; the tunnel
  (Tailscale/WireGuard) is the confidentiality layer (transport is still plaintext ws://).
- The connection code now carries the host: mhu1_<base64url{v,h,p,t,n,fp?,s?}>. The
  gateway decode is tolerant of the legacy {port,token,label} keys; connect_server
  takes the host from the code (host arg is an optional override). Proven end-to-end:
  the integration harness now connects with NO host arg and resolves it from the code.
- Renderer: Sichtbarkeit selector (local/network), public-host input with
  suggested-host chips (os.networkInterfaces — the Tailscale IP shows up there),
  allowlist textarea (network mode), and network-requires-allowlist validation.
- main.js: bindMode->host, getSuggestedRemoteHosts, host-in-code, allowlist plumbed
  into startDiagnosticAgent + the diagnostics IPC (get/save/status).
- docs: rewritten for Tailscale (set the allowlist to your tailnet, put the Tailscale
  IP/MagicDNS in the code address — no SSH forward needed).

This supersedes the v3.3.85 hard loopback-lock with the downloader's allowlist model.
Tests: lib/ip-allowlist (8) + remote-server allowlist wiring/loopback (2) + gateway
decode (host short-key + legacy tolerance). 393 app tests + 9 gateway tests + e2e +
host-in-code integration + adversarial all green; lint 0 errors.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-19 19:32:29 +02:00
Administrator
8d757a99dd fix(diagnostics): harden read-only agent — grep ReDoS, prototype-chain whitelist bypass, redaction gaps
Intensive end-to-end testing (a live gateway-MCP <-> agent integration harness +
an adversarial redaction/abuse probe + an independent security audit) surfaced
three real issues in the shipped read-only diagnostic agent. All run in lib/**,
which is packaged in the app.

1. grep ReDoS froze the Electron main process. read_log compiled the
   client-supplied grep into `new RegExp(grep, 'i')` and ran it synchronously over
   the log tail IN the main process. A catastrophic pattern (e.g. "(a+)+$" against
   a long line) hangs the whole app — empirically confirmed (8s timeout, killed).
   JS regex is synchronous and uncancellable, so grep is now a case-insensitive
   literal substring filter with "|" alternation ("error|timeout|502"). Provably
   linear-time; covers the real diagnostic need.

2. Prototype-chain whitelist bypass. The op table was a plain object literal, so
   handle("constructor" | "toString" | "valueOf", ...) resolved an inherited
   Object.prototype function, passed the `typeof fn === 'function'` guard and
   returned {ok:true}. Harmless functions today, but a whitelist-integrity hole.
   Now guarded with a string check + Object.prototype.hasOwnProperty.

3. Redaction defense-in-depth gaps. redactLogText now also scrubs: basic-auth URL
   passwords (scheme://user:pass@host), Authorization: Basic, JWTs (eyJ...x.y.z),
   and bare/JSON session= values. Mostly theoretical in today's readable logs
   (secret-bearing bodies go to the excluded doodstream-debug.log; other hosters
   throw static strings) but matters as the verbose-logging surface grows.

Verified: 383 app tests (incl. new regression tests for all three), the live
gateway-MCP integration harness (all 14 tools, zero leaks, error paths), the
adversarial probe (14/14+ secret shapes scrubbed, ReDoS 1ms, lockout, malformed
args), e2e gate, lint 0 errors. Only residual: a standalone high-entropy blob with
zero key/Bearer/URL context — inherent to any denylist, acknowledged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-19 18:40:57 +02:00
Administrator
7b5420eeaa fix(diagnostics): deep-redact queue jobs + rotation state — one collector still leaked
get_queue_state with includeJobs:true (the DEFAULT path) scrubbed the job list
with value-scrub only, so an opaque token a hoster returns inside a job error
(token=... that is NOT one of the user's stored credentials) survived in the
response. Same leak class already fixed for get_config_redacted and
server_health, still open on the queue collector's default path.

The first end-to-end gate missed it on two coincidences: server_health calls
getQueueState with includeJobs:false (no job error ever serialized), and the
fixture's queue error used a value that WAS a config secret (so value-scrub
caught it anyway). The direct get_queue_state{includeJobs:true} path with a
non-config token was never exercised.

- getQueueState job list and getRotationState now go through _deepRedact
  (per-leaf pattern + value scrub), matching the other collectors.
- e2e-verify.mjs now plants a non-config token in a queue job error and asserts
  both get_queue_state{includeJobs:true} and the default-args call leak nothing.
- Added a main-suite regression test for the default includeJobs path.

386 app tests + 9 gateway tests + e2e gate pass; lint 0 errors.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-19 17:44:59 +02:00
Administrator
d69e5c39bf feat(diagnostics): MCP gateway + harden redaction so no secret ever leaves the box
Adds the connect-by-code side of remote diagnostics and closes two real
secret-leak vectors that an end-to-end gateway<->agent test surfaced.

Gateway (gateway/, local stdio MCP, Claude connects once):
- 14 read-only tools (server_health hub, read_log, list_logs, list_errors,
  get_queue_state, get_history, get_config_redacted, get_system_info,
  get_rotation_state, get_app_events + connect/disconnect/list/current).
- The HOST is always supplied by the operator, never taken from the code.
- TLS fingerprint pinning is enforced in the socket 'open' handler BEFORE the
  token is sent (wss opt-in); plain ws is loopback-only.
- registry.json (holds bearer tokens) is gitignored; only an empty example ships.

Security hardening (gates every off-box payload):
- redactLogText now scrubs opaque bearer/token-family secrets that are NOT
  stored config credentials (e.g. a session token a hoster returns inside an
  error string): bare token/auth_token/refresh_token/session_token + standalone
  "Bearer <opaque>". Benign "token bucket" prose is left intact.
- get_config_redacted deep-redacts every string leaf (JSON-safe, per-leaf, so
  the cookie/sess line patterns can't gobble across a compact-JSON field) and
  drops the history subtree (served by get_history with its own per-error
  redaction). This plugs leaks via globalSettings.pendingQueue[].error etc.

Bind-address safety:
- _safeDiagBindAddress() forces the diagnostic agent to 127.0.0.1/::1; the
  0.0.0.0 UI option is removed. Direct LAN/Internet bind stays disabled until
  encrypted transport (wss) exists — remote access goes through an SSH/VPN
  tunnel to loopback. (Never plaintext ws:// on all interfaces.)

Tests: end-to-end gateway<->agent gate (connect -> server_health/read_log/
get_config_redacted, asserts zero secret leakage, rejects doodstream log, path
traversal and write ops); + redaction regression tests in the main suite.
385 app tests + 9 gateway tests pass; lint 0 errors.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-19 17:39:31 +02:00