Commit Graph

5 Commits

Author SHA1 Message Date
mike 475da0e950 Implement signed API communication to improve security
build / build-linux-amd64 (push) Successful in 1m50s
2026-05-22 13:05:50 +02:00
mike 9d53999eea Implement password handling for unattended access
build / build-linux-amd64 (push) Successful in 2m0s
2026-05-08 11:34:07 +02:00
mike 5b288d671c feat: M5 admin dashboard (HTMX + Tailwind CDN, embedded HTML)
A web admin UI for the rustdesk-server, mounted at /admin/* on the
existing HTTP API listener. Single-binary deploy preserved — the two
HTML files live in admin_ui/ and are pulled into the binary via
include_str! at build time, so there's nothing extra to ship.

================================================================================
Architecture
================================================================================
- Stack: HTMX 1.9 + Tailwind play CDN. No SPA, no Node toolchain. Pages
  are server-rendered HTML fragments returned by Rust handlers via
  Html<String>; the index.html shell uses hx-get to drop a fragment into
  the main pane and hx-push-url for back-button history.
- Auth: same Bearer-token table the API uses. The dashboard log-in form
  POSTs username + password (+ optional TOTP) to /admin/login; on success
  the server mints a token and pins it in an HttpOnly + SameSite=Strict
  cookie (`rd_admin_session`). The AuthedUser extractor was extended to
  accept either the Authorization: Bearer header (curl, desktop client)
  OR the session cookie (browser).
- Embedding: src/api/admin/mod.rs has `include_str!("../../../admin_ui/index.html")`
  + login.html. No tower_http::ServeDir wildcard — we ran into axum 0.5
  routing conflicts between literal /admin/login routes and an /admin/*
  catch-all, so each HTML file is its own explicit route.

================================================================================
M5a — foundation
================================================================================
Files:
  admin_ui/index.html   page shell + sidebar + HTMX + 401-bounces-to-login
  admin_ui/login.html   credentials + TOTP form, posts to /admin/login
  src/api/admin/mod.rs  router + include_str! + Cache-Control: no-cache
  src/api/admin/auth.rs /admin/login POST (form-encoded), /admin/logout POST
  src/api/admin/me.rs   sidebar fragment ("Signed in as <name>")
  src/api/middleware.rs `AuthedUser` now reads either Bearer OR cookie
  src/api/state.rs      `admin_ui_dir` (informational; UI is embedded)
  src/main.rs           --admin-ui-dir flag (empty disables the dashboard)

The login flow asks for TOTP transparently in the same form when the
target user has a secret enrolled, so the dashboard inherits the TOTP
gate from the API auth surface for free.

================================================================================
M5b — full CRUD pages
================================================================================
- Users (src/api/admin/pages/users.rs) — list, create, password reset,
  toggle admin / status, TOTP enroll / unenroll, delete. TOTP enroll
  surfaces the secret + otpauth URL once, on a dismissible banner above
  the table.
- Devices (devices.rs) — list with hostname/OS/last-heartbeat/conn count,
  force-disconnect (queues `heartbeat_commands` row consumed at the next
  /api/heartbeat tick), force-sysinfo refresh.
- Device groups (groups.rs) — list / create / delete / add member /
  remove member. Per-group section, with an add-member dropdown of users
  not yet in the group.
- Strategies (strategies.rs) — list / create / edit config_options /
  delete. config_options is validated as a JSON object on the server side
  before persist; bad JSON is reflected to the page with a friendly
  error notice.
- Address books (address_books.rs) — read-only overview of all books
  with owner, kind (personal / shared badge), peer count, GUID.
- OIDC providers (oidc.rs) — read-only list of what's configured. Editing
  remains operator-side via --oidc-config TOML or direct SQL.

================================================================================
M5c — audit + recordings browsers
================================================================================
- Audit log (audit.rs) — three tabs (Connections / File transfers /
  Alarms), each capped at the latest 200 rows. Tab pills are HTMX links
  with hx-get + hx-target="#main" so the tab switch is a single fetch.
- Recordings (recordings.rs) — read-only list with peer / size / state /
  start / finish. Streaming download is a follow-up; for now operators
  pull files from --recording-dir directly.

================================================================================
DB methods added
================================================================================
- Users:    users_list_all, user_set_status, user_set_admin,
            user_set_password, user_delete, user_has_totp,
            raw_update_user_email
- Devices:  devices_list_all, device_sysinfo_get_conns,
            heartbeat_command_queue (also used elsewhere; surfaced)
- Groups:   device_groups_list_all, device_group_members,
            device_group_create, device_group_delete,
            device_group_add_member, device_group_remove_member
- Strategy: strategies_list_all, strategy_create,
            strategy_update_config, strategy_delete
- Audit:    audit_conn_list, audit_file_list, audit_alarm_list
- Misc:     ab_list_all_with_owner, recordings_list

All use the runtime sqlx::query("...") form (matching the project-wide
convention) so the SQLite compile-time-check macros don't require these
new tables to pre-exist in the dev DB.

================================================================================
Conventions enforced
================================================================================
- Every page handler gates on require_admin(&AuthedUser) — non-admin
  users get an HTTP 403 + JSON envelope, which the SPA shell catches and
  bounces back to the login form.
- HTML fragments are produced via `format!`-with-named-args; html_escape
  is centralized in src/api/admin/pages/shared.rs and applied to every
  user-supplied string before it lands in the DOM.
- All mutations return either the updated table fragment OR
  notice_html(kind, msg) + the table — same pattern across pages, so
  HTMX swap targets stay simple (always #region innerHTML).
- Cookie carries no path restriction so it also authorizes /api/* calls
  the dashboard might want to make from the browser; HttpOnly +
  SameSite=Strict mitigates XSS / CSRF; Max-Age tracks ApiConfig's
  session_ttl_secs (30 days).

================================================================================
Verification
================================================================================
1. cargo build --release — clean.
2. End-to-end smoke test:
   - /admin/ serves index.html (4406 bytes), /admin/login.html serves
     login.html (2598 bytes).
   - POST /admin/login with valid creds returns 200 + Set-Cookie
     `rd_admin_session=…; HttpOnly; Path=/; SameSite=Strict; Max-Age=…`.
   - All eight /admin/pages/* fragments return 200 with cookie.
   - Users CRUD round-trip: create alice → toggle admin → disable →
     reset password → enroll TOTP (32-char secret displayed once) →
     unenroll → delete; self-action guard rejects suicide deletes.
   - Groups CRUD: create engineering → add alice as member → SQL
     confirms the row.
   - Strategies: valid JSON accepted, invalid JSON rejected with a
     friendly notice.
   - Audit tabs: all three render 200; empty-state messages appear when
     no rows.
   - /admin/logout clears the cookie; subsequent /admin/me returns 401.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 20:13:35 +02:00
mike 8ecf05b106 feat: HTTP-over-rendezvous fallback (HttpProxyRequest)
Closes the M4 plan. When `OPTION_USE_RAW_TCP_FOR_API=Y` (typical in
locked-down networks where direct HTTPS to port 21114 is blocked), the
client wraps every /api/* request in an HttpProxyRequest protobuf and
ships it over the already-encrypted rendezvous TCP channel. We now decode
those messages on hbbs and dispatch them through the *same* axum Router
the HTTPS listener uses — so every existing handler (login, AB, audit,
TOTP, OIDC, devices/cli, plugin-sign, …) is reachable through this path
with zero per-route plumbing.

Components
==========
- libs/hbb_common (submodule, pro-features-httpproxy branch): backports
  HeaderEntry / HttpProxyRequest / HttpProxyResponse + union tags 27/28
  from upstream @87b11a7 onto our pinned @83419b6. Proto-only — the rest
  of hbb_common is unchanged so we keep the tokio 1.x / axum 0.5 / pinned
  reqwest fork intact (a full submodule bump risked breaking those).
- src/api/http_proxy.rs: the dispatch shim. Holds a `Mutex<Option<Router>>`
  populated by `api::serve` before the HTTPS listener starts, builds an
  `http::Request<Body>` from the proto fields (sanitizing hop-by-hop
  headers, defaulting Content-Type: application/json), runs it through
  `router.oneshot(req)`, and serializes the response into HttpProxyResponse.
  Tower added as a direct dep with the `util` feature for ServiceExt.
- src/api/mod.rs: pub mod http_proxy; install_router(app.clone()) before
  axum::Server::bind to share the router.
- src/rendezvous_server.rs::handle_tcp: new match arm right before the
  catch-all that decodes HttpProxyRequest and replies with an
  HttpProxyResponse via the existing Sink::TcpStream(..., Encrypt) path.
  The reply is automatically secretbox-sealed by `send_to_sink`, so the
  end-to-end channel is encrypted symmetrically with secure_tcp.
- examples/http_proxy_test.rs: end-to-end smoke test that opens a TCP
  connection, walks the secure_tcp handshake by hand (read server's
  signed box pubkey, derive symmetric key, send sealed reply), then
  ships an HttpProxyRequest GET /api/login-options and verifies the
  response is 200 + ["account"]. Used as the validation gate.

New crate deps
==============
- tower = "0.4"     (features = ["util"]) — for ServiceExt::oneshot
- http-body = "0.4" — for the Body trait import in dispatch

Verification
============
1. cargo build --release — clean.
2. examples/http_proxy_test against a fresh hbbs:
   [ok] secure_tcp handshake complete
   [ok] sent HttpProxyRequest GET /api/login-options
   [ok] response status = 200
   [ok] response body   = ["account"]
   [pass] full HTTP-over-rendezvous round trip verified
3. hbbs log confirms the secure_tcp handshake completed and the dispatch
   went through the standard axum router.

Notes on cherry-pick vs submodule bump
======================================
The plan flagged the bump as the riskiest M4 item because newer
hbb_common pulls newer tokio that breaks axum 0.5. The proto-only cherry
pick keeps everything stable; the upstream-divergence cost is one extra
commit in the hbb_common submodule that we own.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 19:29:46 +02:00
mike 3e89d61566 feat: add Pro-equivalent management API on top of OSS hbbs
Brings the rustdesk-server up to feature parity with RustDesk Server Pro for
the API surface the desktop client expects (CONSOLE_API.md). Implemented as
an in-process axum router mounted by hbbs alongside its existing
rendezvous + relay TCP/UDP/WS listeners; everything persists in the existing
SQLx + SQLite database via additional CREATE TABLE IF NOT EXISTS migrations.

================================================================================
M1 — Auth foundation + heartbeat + sysinfo
================================================================================
- New tables: users, tokens, device_sysinfo.
- Endpoints: HEAD+GET /api/login-options, POST /api/login, POST /api/logout,
  POST /api/currentUser, POST /api/heartbeat, POST /api/sysinfo_ver,
  POST /api/sysinfo.
- Bearer-token auth: tokens are 32 random bytes (base64url); only the
  sha256 of the token is stored. `tokens.last_used_at`/`expires_at` slide
  forward on every authenticated request (30-day TTL by default).
- Bcrypt-cost-10 password hashing, always wrapped in
  tokio::task::spawn_blocking to keep the runtime responsive.
- New CLI flags --http-port, --bootstrap-admin-username,
  --bootstrap-admin-password.
- Heartbeat returns the `sysinfo: true` flag on first contact and after
  cfg.sysinfo_ver bumps; sysinfo upload returns the bare-string body
  ("SYSINFO_UPDATED" / "ID_NOT_FOUND") the client expects.

================================================================================
M2 — Address book, device groups, accessible peers
================================================================================
- New tables: address_books, address_book_shares, address_book_peers,
  address_book_tags, address_book_peer_tags, device_groups,
  device_group_members. Soft-ALTER adds device_sysinfo.user_id (the
  binding from a device to its enrolled user, set by /api/login).
- Endpoints: POST /api/ab/settings, POST /api/ab/personal,
  POST /api/ab/shared/profiles, POST /api/ab/peers, POST /api/ab/tags/{guid},
  POST /api/ab/peer/add/{guid}, PUT /api/ab/peer/update/{guid},
  DELETE /api/ab/peer/{guid}, POST /api/ab/tag/add/{guid},
  PUT /api/ab/tag/rename/{guid}, PUT /api/ab/tag/update/{guid},
  DELETE /api/ab/tag/{guid}, GET+POST /api/ab (legacy single-blob fallback),
  GET /api/device-group/accessible, GET /api/users, GET /api/peers.
- Share-rule enforcement (1=read, 2=read/write, 3=full) at the top of every
  AB mutation. Owners are full; other rules come from
  address_book_shares (direct or via device_group). Rejection is HTTP 200 +
  {"error":"read-only"} so the client doesn't yank the session.
- New CLI flags --ab-legacy-mode, --ab-max-peers-per-book.
- Action endpoints (peer add/update/delete, tag CRUD) return HTTP 200 with
  EMPTY body on success — matches the Flutter _jsonDecodeActionResp at
  ab_model.dart:2002 which treats {} as the literal error string "null".

================================================================================
M3 — Audit, recording, strategy push
================================================================================
- New tables: audit_conn (PK guid echoed back to client),
  audit_file, audit_alarm, recordings, strategies, strategy_assignments,
  heartbeat_commands.
- Endpoints: POST /api/audit/conn (returns {"guid":"..."}),
  POST /api/audit/file, POST /api/audit/alarm, PUT /api/audit (note update),
  POST /api/record?type={new|part|tail|remove}.
- Recording uploader: filesystem state machine under --recording-dir;
  filenames sanitized to a single Normal path component to block traversal;
  `tail` writes the first ≤1024 bytes at offset 0 after all `part` chunks.
- Heartbeat extended to:
  * resolve a per-peer strategy (peer > device-group > user, highest
    priority wins) and emit `strategy.config_options` + `extra` +
    `modified_at`.
  * read-and-delete heartbeat_commands rows so an admin can queue
    `disconnect: [conn_id]` or force `sysinfo: true` via SQL and have it
    delivered on the next 15-second tick.
- New CLI flags --recording-dir (default ./recordings),
  --recording-max-size-mb, --audit-retention-days.

================================================================================
secure_tcp on the rendezvous TCP listener (M3 polish)
================================================================================
A logged-in client conditionally calls secure_tcp() on its TCP rendezvous
connection (src/client.rs:427-431, gated on `key && token` both non-empty).
OSS hbbs had no KeyExchange handler at all on TCP rendezvous, so the
client's secure_tcp_impl read timed out with "Failed to secure tcp:
deadline has elapsed". Added:
- A try_secure_tcp_handshake helper that, on every accepted TCP connection,
  generates an ephemeral box keypair, signs the box public key with the
  server's Ed25519 sk (already loaded for relay-response signing), sends
  KeyExchange, then waits 5s for the client's reply.
  - Reply is KeyExchange[client_box_pk, sealed_sym_key] -> decrypt the
    sealed key, install Encrypt on both halves of the stream.
  - Reply is any other RendezvousMessage -> buffer it and replay through
    the normal handle_tcp dispatcher (plain-mode clients filter unsolicited
    KeyExchange via get_next_nonkeyexchange_msg, so our preceding KX is
    harmless).
  - Reply never comes (timeout) -> fall through to plain mode.
- Sink::TcpStream now carries an Option<Encrypt>; outgoing writes are
  sealed when keyed. Symmetric Encrypt is cloned for inbound (`dec`) and
  outbound (`enc`) so the two directions track independent counters.

================================================================================
M4 — Advanced auth (TOTP, email-code, OIDC), CLI assign, plugin signing
================================================================================
- New tables: user_totp_secrets, pending_tfa_challenges,
  pending_email_codes, oidc_providers, oidc_sessions. Soft-ALTER adds
  users.oidc_subject.
- /api/login extended:
  * type:"account" (existing) — issues an `tfa_check` challenge (5-min
    nonce in `secret`) when the user has TOTP enrolled.
  * type:"tfa_code" — verifies the nonce + the 6-digit TOTP code against
    user_totp_secrets.secret_b32.
  * type:"email_code" — passwordless. First leg mints a 6-digit code and
    sends it via SMTP (or logs to stdout when --smtp-host is empty);
    second leg verifies. Brute-force capped at 5 attempts per code, then
    the row is purged.
- /api/oidc/auth + GET /oidc/callback + GET /api/oidc/auth-query implement
  the standard OAuth2 authorization-code flow with userinfo. Discovery via
  <issuer>/.well-known/openid-configuration with an in-memory cache.
  --oidc-config TOML upserts providers at startup; --public-base-url builds
  the redirect_uri.
- New endpoints: POST /api/2fa/enroll (admin-only, returns secret_b32 +
  otpauth_url), POST /api/2fa/unenroll, POST /api/devices/cli (used by
  `rustdesk --assign`; binds device to user, ensures device-group, adds
  AB entry, attaches peer-scoped strategy), POST /lic/web/api/plugin-sign
  (Ed25519 over the request body using the same id_ed25519 secret).
- /api/login-options is now dynamic: returns ["account"], plus "email_code"
  when SMTP or ALLOW_DEV_EMAIL_CODE is set, plus an "oidc/<name>" entry
  per enabled provider in oidc_providers.
- New CLI flags --smtp-host, --smtp-port, --smtp-user, --smtp-pass,
  --smtp-from, --smtp-tls, --public-base-url, --oidc-config.
- New crate deps: tokio (fs/io-util features), totp-rs, lettre (rustls +
  builder + smtp-transport, no defaults), toml.

================================================================================
Code organization
================================================================================
- src/api/                 axum router + shared state + error envelope
  ├── ab/                  address book endpoints (settings/profiles/peers/
  │                        tags/legacy/rules)
  ├── audit/               conn/file/alarm/note
  ├── oidc/                providers/discovery/auth/callback/poll
  ├── record/              storage state machine + handler
  ├── strategy/            resolver wrapper around DB
  ├── auth.rs              login/logout/currentUser
  ├── devices_cli.rs       /api/devices/cli
  ├── email.rs             SMTP transport (lettre) + dev-mode stdout fallback
  ├── error.rs             ApiError enum -> HTTP 200/401/403/404 + JSON envelope
  ├── groups.rs            /api/device-group/accessible
  ├── heartbeat.rs         /api/heartbeat
  ├── middleware.rs        AuthedUser extractor (Bearer -> sha256 -> token row)
  ├── pagination.rs        Page<T> + PageQuery
  ├── peers.rs             /api/peers
  ├── plugin_sign.rs       /lic/web/api/plugin-sign
  ├── state.rs             AppState + ApiConfig (incl. EmailConfig)
  ├── sysinfo.rs           /api/sysinfo, /api/sysinfo_ver
  ├── twofa.rs             /api/2fa/enroll, /unenroll
  └── users.rs             UserPayload + /api/users + bcrypt helpers

================================================================================
Conventions enforced throughout
================================================================================
- All new SQL uses the runtime sqlx::query("...") form (NOT the query!
  macro) so first-time builds don't require DATABASE_URL to point at a DB
  containing the new tables.
- Soft-ALTER helper (try_alter) swallows "duplicate column name" errors so
  schema migrations are idempotent across re-runs and existing-DB upgrades.
- Bcrypt compares always via spawn_blocking.
- Tokens (Bearer access_token, TFA challenge nonce, OIDC poll handle) are
  always 24-32 random bytes from sodiumoxide::randombytes; the Bearer is
  stored only as its sha256.
- Constant-time hash comparison for email codes.
- Action endpoints return HTTP 200 with empty body on success; HTTP 200 +
  {"error": "..."} for business errors so the client doesn't get logged
  out; 401 only from the auth middleware.

Tested end-to-end via curl + a stock RustDesk client (M1-M2 verified
against two laptops; M3 verified against the strategy-push and
force-disconnect paths; M4 verified via direct flow tests + a mock IdP for
OIDC). Stock client connect now works whether the user is signed in or
not (the secure_tcp regression that blocked logged-in connect is fixed).

The remaining piece on the M4 plan — HttpProxyRequest, the TCP-over-
rendezvous fallback for clients with OPTION_USE_RAW_TCP_FOR_API=Y — is
gated on bumping the OSS server's vendored hbb_common to a commit that
includes proto tags 27 and 28. That work lives on a separate branch.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 19:07:01 +02:00