Commit Graph

10 Commits

Author SHA1 Message Date
Anso e65c5e8551 fix(pilot): post-merge audit followups (WS via getProxyTarget, closeTunnel lifecycle, mesh source buffer, docs) (#1128)
* fix(pilot): route remote WS upgrades through NodeRegistry.getProxyTarget

Pilot-mode nodes carry empty api_url and api_token by design and expose
their API on a per-tunnel loopback bridge. The upgrade handler gated the
remote-forwarder branch on `node.api_url && node.api_token`, so WS
requests targeting pilot nodes silently fell through to the local
handlers (live logs, exec, generic) instead of tunneling to the agent.

Resolve the target via NodeRegistry.getProxyTarget so pilot and proxy
modes share one dispatch path, mirroring the HTTP proxy.
handleRemoteForwarder now takes the resolved target and, when the target
is the pilot loopback (empty token), skips the console-token exchange
and the Authorization injection so the tunnel-side auth is the only
source of truth on that path. Unresolvable targets reject the upgrade
with HTTP 503 instead of being served gateway-local data.

* fix(pilot): emit tunnel-down and mark node offline on closeTunnel

PilotTunnelManager.closeTunnel closed the underlying WebSocket but
skipped the cleanup the natural-disconnect path runs, so explicit
closures (enrollment regenerate, node deletion) left the node row at
status='online' until the next reconnect. The dashboard kept showing
the stale state for the entire interval.

closeTunnel now writes nodes.status='offline' and emits tunnel-down for
pilot bridges, and emits proxy-bridge-down for central-initiated proxy
bridges. The maps are cleared before bridge.close() so the natural
'closed' handler's bridge-identity guard short-circuits and we do not
double-emit.

* fix(mesh): buffer cross-node source data until tcp_open_ack arrives

openCrossNode piped src socket data straight to tcpStream.write before
the forward TcpStream emitted 'open'. The first packet on a fresh
cross-node stream raced ahead of the agent's tcp_open_ack on the wire,
which broke protocols that send immediately after connect (HTTP, TLS,
Redis, Postgres) on Pilot and proxy mesh paths.

Buffer src chunks in a local array capped at STREAM_PENDING_DATA_MAX_BYTES
until tcpStream emits 'open', then flush them in order before any
post-open writes. Tear down both sockets if the buffer overflows so a
misbehaving source cannot exhaust gateway memory while waiting for the
ack.

* docs(pilot): clarify host-console non-parity and narrow the parity claim

Pilot mode disables the host-console capability at the capability
registry (the agent container has no useful host shell to surface), but
the public docs listed host console among the WebSockets that ride
through the tunnel and described pilot as behaving identically to proxy
mode. State the shared-capability claim more carefully and call out the
intentional non-parity in a dedicated subsection.
2026-05-21 01:00:47 -04:00
Anso 982c7830b1 fix(mesh): address audit follow-ups (early-data, recompose, admiral gate, error codes, docs) (#1126)
* fix(mesh): buffer early TcpData on reverse-relay path

The reverse-relay code dropped the local-shaped reservation and any
TcpData frames buffered in it before acceptReverseRelay had wired up
the target stream. A peer that sent a request body immediately after
tcp_open_reverse lost those bytes when the target lived on a third
node, since reverse_local buffers them but reverse_relay did not.

Carry the reservation through acceptReverseRelay: transplant its
pendingData and pendingBytes into the new reverse_relay state, gate
TcpData writes on targetOpen, and flush buffered frames into the
target stream before sending tcp_open_ack. Mirrors the reverse_local
pattern. Regression test fires tcp_open_reverse plus an immediate
TcpData while ensureBridge is in flight and verifies the bytes
arrive intact, in order, before the ack.

* fix(mesh): recompose affected stacks when node-level mesh is disabled

disableForNode used to clear DB rows and override files but leave the
running containers attached to sencho_mesh with stale /etc/hosts
alias entries until an operator redeployed every stack by hand.

Mirror optOutStack: after the existing alias/forwarder cleanup, call
regenerateOverridesAcrossFleet, cascadeRecomposeAcrossFleet, and
triggerRedeploy for each previously meshed stack on the disabled
node so containers detach from sencho_mesh and shed the alias
entries they owned. The disabled node's mesh_stacks rows are deleted
before the cascade so listMeshStacks returns the right set with no
skip tuple required. Route threads the actor through actorFor(req)
for parity with optInStack/optOutStack. Tests cover the redeploy
fan-out, the cascade no-skip-tuple invariant, and the default actor
fallback for non-route callers.

* fix(mesh): require Admiral on the WS proxy-tunnel upgrade

HTTP mesh routes in routes/mesh.ts all enforce requireAdmiral, but
the /api/mesh/proxy-tunnel WS upgrade accepted any node_proxy or
full-admin api_token regardless of the receiver's license. A node
downgraded from Admiral kept serving mesh data-plane traffic to a
sibling central while refusing every mesh management call.

Read the receiver's local LicenseService at the upgrade and 403 when
the tier is not paid+admiral. The check sits after the existing
credential gate and uses LicenseService directly rather than
effectiveTier (which trusts forwarded proxy headers); a remote peer
dialing in cannot be trusted to assert our entitlement. Dialer and
node_proxy token format are unchanged. Three regression tests cover
community-tier node_proxy, skipper-tier node_proxy, and
community-tier full-admin api_token all rejected with 403.

* fix(mesh): handle no_target alongside push_failed in inspectStackServices

proxyFetch throws MeshError('no_target') when getProxyTarget returns
null (pilot tunnel offline, proxy bridge unreachable), but the
inspectStackServices catch branch only matched push_failed. Offline
remotes fell through to the generic 'remote unreachable' error log,
which the Routing tab surfaces as an unexpected fault.

Match both error codes and emit the operator-friendly warn message
that names the unreachable node and the error code. Regression test
spies on console.warn/console.error to pin the branch.

* docs(mesh): align env defaults and forwarder comments with current architecture

SENCHO_MESH_PROXY_TUNNEL_IDLE_MS in .env.example carried the old
five-minute idle-close value (=300000), but the code default is
DEFAULT_IDLE_TTL_MS=0 (persistent tunnel). Copying the example
silently reintroduced the idle-close behavior the dialer removed.

MeshForwarder.ts's leading docblock and inline listen comment still
described host-network mode plus extra_hosts: host-gateway as
required for forwarder reachability. Sencho runs in standard bridge
mode and attaches to the shared sencho_mesh network at a stable IP;
meshed user containers reach the forwarder by that IP directly.

Flip the env default to 0, rewrite the env comment to describe the
persistent behavior and the opt-in for idle teardown, and rewrite
both forwarder comments to match the bridge-network reality.

* fix(mesh): trust forwarded tier on proxy-tunnel WS and remove remote overrides on disable

Admiral entitlement on the WS data plane now follows the same trust model
as the HTTP mesh routes: the central asserts its tier via x-sencho-tier
and x-sencho-variant on the WS handshake, and the receiver trusts those
headers only when the upgrade carries a node_proxy credential. When no
headers are present or the credential is a full-admin api_token, the
receiver falls back to its own local license. Without this an Admiral
central could be rejected by a Community remote and a Community central
could dial a locally-Admiral remote.

disableForNode now routes through removeOverrideFromNode so override
files pushed earlier via applyLocalOverride are removed on remote nodes
via DELETE /api/mesh/local-override/:stack. Sequential awaits are wrapped
in Promise.allSettled to match regenerateOverridesForNode's parallel
push pattern.

Other changes:
- Cover the post-state-swap buffering window in the reverse-relay test
  (TcpData arriving after openTcpStream returns but before target open).
- Refresh stale MeshService comments that still referenced the removed
  sidecar layer and host-network listener model.

* test(mesh): pin removeOverrideFromNode remote HTTP shape

The disableForNode regression test mocks removeOverrideFromNode itself,
so a regression inside the helper would not be caught. Add a narrow
contract test that spies on global fetch and asserts the request shape:
DELETE /api/mesh/local-override/:stack against the resolved proxy
target, with Authorization Bearer plus the x-sencho-tier and
x-sencho-variant headers. Also covers the encodeURIComponent path and
the swallowed-network-error behavior the disable cascade relies on.

* test(mesh): use createTestApiToken helper in proxy-tunnel api_token gate test

The full-admin api_token branch of the WS Admiral gate test inlined the
canonical generateApiToken + sha256 + addApiToken triple that already
lives in the createTestApiToken helper. Switching to the helper removes
the duplicated insertion logic and aligns this test with the helper used
by the other api_token call sites.
2026-05-20 12:53:29 -04:00
Anso f6e42535c8 fix(mesh): route peer→central traffic over the existing forward WS (#1094)
* fix(mesh): route peer→central traffic over the existing forward WS

The reverse mesh callback path (`/api/mesh/proxy-tunnel-from-peer`) needed
SENCHO_PRIMARY_URL on central plus a publicly reachable origin from the
peer's perspective. In a typical homelab where central sits behind NAT,
peer→central dispatch silently failed at the dialer's short-circuit and
the headline "call any service on any node by hostname" worked one way
only.

The forward WS at `/api/mesh/proxy-tunnel` is already bidirectional end
to end. Make the bridge a persistent control-plane primitive: dial every
mesh-enabled proxy peer at startup, reconcile every 60 s, never idle-close.
Peer→central traffic multiplexes over the same WS via `tcp_open_reverse`.

Removed:
- `meshProxyTunnelFromPeer.ts` WS handler and dispatch
- `MeshCentralRegistry`, `PeerToCentralMeshSessionDialer`
- `mesh_handshake` first-frame state machine in `meshProxyTunnel.ts`
- `maybeSendBootstrap`, `buildHandshakeFrame` in the dialer
- `mesh_proxy_callback_bootstrap` capability and `maybeWarnUnsetPrimaryUrl`
- `mesh_centrals` table (drop migration; greenfield, no users)
- `PilotTunnelManager.replaceOrRegisterProxyBridge` (dead after handler removal)
- twelve associated unit/integration tests plus the peer-recovery branch
  in `MeshService.openCrossNode`

Added:
- `MeshService.proactiveBridgeFanout` selects every mesh-enabled proxy
  peer (no longer gated on `mesh_stacks` rows)
- `startBridgeReconcileLoop` runs the fanout every 60 s (override via
  `SENCHO_MESH_RECONCILE_INTERVAL_MS`)
- `MeshProxyTunnelDialer` default idle TTL is now `0` and exposes
  `isDialing(nodeId)` for the status surface
- `MeshNodeStatus.reverseCallbackStatus` discriminator
  (`connected | connecting | unavailable | not_applicable`) surfaced via
  `/api/mesh/status` and rendered as a pill in the Routing tab
- `openCrossNode` error message distinguishes "no proxy target" from
  "waiting for central to dial the reverse bridge"
- New tests: `mesh-service-proxy-tunnel-reconcile`,
  `mesh-status-reverse-callback`, `mesh-proxy-tunnel-dialer-no-idle-close`

SENCHO_PRIMARY_URL is no longer required for any mesh function.

* fix(mesh): rewrite proxy-tunnel reconcile test contents

The previous commit renamed the file but the rewritten test bodies stayed
unstaged on top of the rename. This commit lands the actual rewrite: the
fanout assertion now requires every mesh-enabled proxy peer to be dialed,
not just those with `mesh_stacks` rows, and adds a reconcile-tick
repeated-call test.
2026-05-17 22:00:31 -04:00
Anso cf618dd866 feat(mesh): symmetric WS dial for proxy-mode mesh peers (#1066)
* chore(mesh): foundation for symmetric callback dial

Adds the data-plane scaffolding that the symmetric callback dial fix
builds on:
- mesh_centrals table for peer-side bootstrap material
- MeshCentralRegistry service (upsert/getActive/clear/markUsed/markRejected)
- PilotTunnelManager kind discriminator and replaceOrRegisterProxyBridge
- mesh_proxy_callback_bootstrap capability registration
- MeshProxyTunnelDialer reason-tagged proxy-bridge-down events from a
  single tearDownBridge emission point
- Reactive redial scheduler that skips idle and auth_failed reasons

* feat(mesh): add reverse-direction activity log entries (closes R1-B)

acceptReverseLocal now emits route.resolve.ok with direction=reverse on
connect ack and route.resolve.fail with direction=reverse plus
reason=container_not_found / connect_error pre-connect. Post-connect
close/error stays silent. Reuses existing event types via the new
details.direction discriminator so frontend filters are unaffected.

* feat(mesh): add peer-to-central callback dial path (closes R1-A2)

Closes the architectural gap where proxy-mode mesh peers could not
re-establish their tunnel to central after any non-idle bridge teardown
(idle close, network blip, central restart, peer reboot). Central remains
the hub for the data plane; the change is purely about WS initiation.

Symmetric WS initiation, asymmetric protocol roles. Central retains
PilotTunnelBridge ownership; peer retains TcpStreamSwitchboard +
reverseDialer ownership. Central bootstraps callback credentials over
the first authenticated central-initiated mesh tunnel via a one-shot
mesh_handshake JSON frame; peer persists the material in a new
mesh_centrals SQLite table and dials central's new
/api/mesh/proxy-tunnel-from-peer endpoint when local cross-node traffic
needs a bridge and none is live.

Mesh_tunnel JWT (HS256, signed with auth_jwt_secret) carries scope, audience,
issuer (central instance id), peer api_token fingerprint, kid. Validation
on inbound peer dial: algorithm pin, signature, scope, audience, instance,
time bounds, node existence and mode, fingerprint match. Failures return
HTTP 401 with a machine-readable reason; peer routes the response per a
clear-vs-keep cache matrix.

Triggers proactive bootstrap on mesh-enable and api_token rotation; central
startup fans out to mesh-enabled proxy-mode nodes with mesh_stacks rows
(throttled, fire-and-forget). Reactive redial on non-idle bridge loss.

Capability-gated handshake send (mesh_proxy_callback_bootstrap) makes the
upgrade path safe against older peers in mixed-version fleets.

Adds peer-side /api/system/pilot-tunnels centralCallback diag block,
bounded counter metrics for bootstrap and dial events. SENCHO_PRIMARY_URL
preflight warning when unset on a central with mesh-enabled proxy nodes.

Tested with unit suites for the validation chain, registry, manager, and
both dialers; integration tests for bootstrap E2E (asserts protocol-role
invariant), api_token rotation, instance id change, version skew, and
pilot-mode regression.

* fix(mesh): green CI on the symmetric callback branch

Two independent CI failures, both surgical:

1. Backend tests (11 fails): four mesh test files called setupTestDb in
   beforeEach. setupTestDb does not reset the DatabaseService singleton,
   so the per-test afterEach rm of the previous tmpdir left the singleton
   connection pointing at a deleted file. The next beforeEach's line-55
   write threw SQLITE_READONLY_DBMOVED on Linux. Windows file-lock
   semantics hid this locally. Hoist setupTestDb / cleanupTestDb to
   file-scope beforeAll / afterAll; per-test state resets stay in
   beforeEach. Matches the convention in the eight mesh test files that
   already pass.

2. CodeQL (4 high alerts): js/insufficient-password-hash flagged
   sha256(api_token) at four sites. The api_token is a 256-bit opaque
   bearer (sen_sk_-prefixed), not a human password; sha256 is the
   correct fingerprint primitive for binding the mesh_tunnel JWT to a
   specific token. Add the two production files plus the two test
   files that mint the fingerprint to the existing path-scoped
   query-filter for that rule.

* fix(mesh): drop unused afterEach import and revert dead codeql config

ESLint flagged afterEach as unused in mesh-central-registry.test.ts:1
after the previous commit hoisted setup/teardown to file-scope
beforeAll/afterAll. Remove from the vitest import line.

Revert the codeql-config.yml additions from the previous commit. The
paths: sub-key under query-filters > exclude is not a documented CodeQL
feature and silently no-ops. The four js/insufficient-password-hash
alerts on api_token fingerprinting are tracked as dismissed false
positives in the GitHub Security tab rather than via dead config.
2026-05-16 14:58:19 -04:00
Anso d882f223f4 feat(api-tokens): switch to sen_sk_ prefixed opaque keys (#1062)
* feat(api-tokens): switch to sen_sk_ prefixed opaque keys

Replace JWT-shaped API tokens with 56-char opaque keys of the form
`sen_sk_<43-char base62 random><6-char base62 checksum>` (256-bit
entropy, sha256-truncated checksum). Node-proxy tokens stay JWTs.

Why:
* The api_token path was already a sha256 DB lookup; the JWT signature
  was wasted work and the 400d JWT ceiling vs DB expires_at was a
  confusing dual bound.
* Opaque tokens carry a verifiable checksum so malformed/typoed values
  are rejected before any SQLite lookup.
* `sen_sk_` prefix is recognizable to GitHub, TruffleHog, GitGuardian
  and makes the on-wire shape visually distinct from node_proxy JWTs.

Changes:
* New `utils/apiTokenFormat.ts` (generate + checksum-verify, CSPRNG via
  randomInt, timingSafeEqual on the checksum compare).
* `middleware/auth.ts` and `websocket/upgradeHandler.ts` route opaque
  tokens before any jwt.verify; 401 messages unified to avoid a
  token-existence oracle.
* `middleware/rateLimiters.ts` short-circuits opaque tokens in the
  node_proxy detection and keys per-token via a non-reversible sha256
  slice so each token keeps its own bucket without a DB hit.
* All six existing tests migrated from jwt.sign({scope:'api_token'})
  to generateApiToken(); new format-only test suite covering prefix,
  length, alphabet, checksum reject paths, and a 10k-iteration
  collision/integrity loop.
* Docs (features/api-tokens.mdx, api-reference/overview.mdx) describe
  the shape and drop the obsolete JWT-ceiling note.

* fix(api-tokens): clear CI lint and CodeQL false positives

* Drop unused TEST_USERNAME import in remote-console-session.test.ts;
  the migration to generateApiToken() left it orphaned.
* Add a CodeQL barrier model so `generateApiToken`'s ReturnValue does
  not flow into the `insufficient-password-hash` query. The function
  emits 256-bit CSPRNG opaque keys; sha256 of the raw token is the
  correct construction for high-entropy API tokens (bcrypt-class
  hashes target low-entropy human passwords). CodeQL's name heuristic
  was treating "Token" as a password source and flagging the standard
  sha256 wrapping at all 9 call sites.

* ci(codeql): exclude js/insufficient-password-hash for token paths

The previous barrierModel data extension was a no-op for this rule: the
js/insufficient-password-hash query identifies its "password" sources via
SensitiveExpr's name heuristic ("token", "secret", "key" substrings),
which is upstream of the taint-tracking layer where barrierModel applies.
Verified by post-push re-analysis: 9 alerts still open, all undismissed.

Replace the dead extension with a path-scoped query-filter in
codeql-config.yml so the rule no longer fires on apiTokenFormat,
apiTokens, and the test directory. Real user-password hashing code
elsewhere in the repo (auth, users, setup routes) remains analyzed.

The 9 existing alerts on PR #1062 are dismissed via API as false
positives with a justification pointing at this config. Future runs
will not re-flag them because of the path filter.
2026-05-15 18:21:28 -04:00
Anso 946db9df52 fix(mesh): accept node_proxy at the proxy-tunnel WS upgrade (#1050)
The mesh proxy-tunnel WS handler was gated on full-admin api_token scope
only, so node_proxy JWTs (the credential the Add Remote Node dialog tells
operators to generate via Settings -> Nodes -> Generate Token) were
silently rejected with HTTP 403. Operators followed the dialog's
instructions, enrolled the node cleanly, saw reachableMode='proxy' with
no negative badge, opted a stack into mesh, watched the redeploy
complete, and only then discovered no bytes flow.

node_proxy already authorizes every /api/* surface on the remote
(deploy, exec, host console, filesystem), which is a strict superset of
what the mesh proxy-tunnel does. Gating mesh more strictly was theatre,
not security, and it created a UX trap with no in-product signal pointing
at the scope mismatch.

Change the upgrade dispatcher to accept any machine-to-machine
credential: node_proxy JWT or full-admin api_token. Session cookies and
restricted api_token scopes (read-only, deploy-only) remain rejected
through the same paths as before. Adds positive/negative coverage in
upgrade-order.test.ts for all four credential shapes so the gate stays
pinned against future re-tightening. Updates user-facing copy in the
mesh docs and Settings -> API Tokens description so the documented path
matches the actual code.

If we ever introduce a demoted node_proxy variant (audit-only, read-only
fleet member), the right move is differentiated node_proxy scope claims
inside the tunnel JWT (tracker F-A3), not requiring a separate token
type for mesh.
2026-05-14 23:26:41 -04:00
Anso a38a3e0226 feat(mesh): route mesh traffic over Distributed API remotes (#1048)
* refactor(mesh): extract shared TCP stream switchboard

Pull the `tcp_open` / `tcp_open_ack` / `tcp_open_reverse` / `tcp_close`
+ `TcpData` handling out of the pilot agent into a reusable module so a
second caller (the upcoming proxy-mode WS handler) can run the same
frame parser, stream allocator, idle timers, and Compose-label
resolver. One parser, two callers, zero drift on a
security-sensitive protocol surface.

The pilot agent keeps its public `openMeshTcpStream` API and delegates
to a per-connection switchboard constructed in `connect()` and torn
down in `cleanupAfterDisconnect`. Existing reverse-stream and resolver
tests are rewritten to exercise the shared module directly.

* feat(mesh): route mesh traffic over Distributed API remotes

Sencho Mesh now works against remotes in Distributed API mode in
addition to Pilot Agent mode. Central opens a short-lived WebSocket
tunnel to the remote's new `/api/mesh/proxy-tunnel` endpoint on demand
and tears it down after 5 minutes of idle (configurable via
`SENCHO_MESH_PROXY_TUNNEL_IDLE_MS`). Mesh dispatch is mode-agnostic at
the routing layer; `PilotTunnelManager.ensureBridge` resolves an
existing tunnel or asks the new `MeshProxyTunnelDialer` to dial.

The Routing tab badges now use a `reachableMode` classifier: `★ Local`
for local, `pilot offline` red badge for a pilot with a down tunnel,
and a new `unreachable` red badge surfacing the specific reason
(missing token, scope not full-admin, TLS failure, remote does not
support proxy mesh). Distributed API remotes with valid credentials
show no negative badge; the tunnel opens on first dial.

Auth: the proxy-tunnel WS upgrade requires an `Authorization: Bearer`
API token with the `full-admin` scope. Lower-scoped tokens are
rejected at upgrade time so a leaked read-only token cannot reach the
mesh data plane.

Bidirectional: the proxy-mode WS handler registers itself as the
local `MeshService` reverse dialer (compare-and-swap), so meshed
containers on a Distributed API remote can dial cross-node aliases
via `tcp_open_reverse` over the same tunnel. Cross-node relays
(`PilotTunnelBridge.acceptReverseRelay`) await `ensureBridge` so
proxy-to-proxy mesh works without standing tunnels.

* docs(mesh): describe Distributed API mesh and unreachable troubleshooting

Refresh the user-facing mesh documentation to reflect that mesh works
over both Pilot Agent and Distributed API remotes. Adds a
Troubleshooting accordion entry for the new `unreachable` Routing tab
badge so operators can match a tooltip reason ("api token rejected
(scope must be full-admin)", "remote does not support proxy mesh",
"TLS handshake failed", "api_url not set", "api token missing") to a
concrete fix.

* refactor(mesh): apply /simplify review findings

Five cleanups surfaced by the post-implementation code review pass.
No behaviour change for fleets running on `main`; only internal
structure improves.

- **Deterministic container IP shared.** Extract the compose-default
  network preference (`pickContainerIp`) and the conventional-name
  fast path (`lookupContainerIp`) into `backend/src/mesh/containerLookup.ts`.
  Both `MeshService.resolveContainerIp` (existing same-node fast
  path) and the switchboard's `resolveByComposeLabels` (proxy/pilot
  inbound dial) now use the same logic. Earlier the switchboard
  helper grabbed the first `Object.values(Networks)` IP, which
  could flip across daemon versions on multi-network containers;
  fixed.
- **WS URL upgrade extracted.** New `backend/src/utils/wsUrl.ts`
  exposes `httpUrlToWs(baseUrl)` that maps `http://` to `ws://` and
  `https://` to `wss://`. Used in both `pilot/agent.ts` and the
  proxy-tunnel dialer. The previous inline `replace(/^http/, 'ws')`
  silently downgraded `https://` to `ws://` (cleartext).
- **`computeReachable` takes the pre-fetched node.** `getStatus`
  already iterated `db.getNodes()`; the helper previously re-queried
  by id per node (N+1 reads). Pass the row in.
- **Reachable-reason ternary -> const map.** Replace the nested
  ternary in `MeshService.computeReachable` with a
  `Record<DialFailureCode, string>` lookup keyed on the dialer's
  failure code.
- **Activity-type ternary -> const map.** Same flattening inside
  `MeshProxyTunnelDialer.logActivity`.

All mesh tests pass (85/85). Full backend suite green (2126/2126).

* fix(mesh): cache proxy dial failures and contain WS handshake errors

`ensureBridge` now consults the recent-failure cache before dialing so a
continuous mesh workload against a misconfigured proxy-mode remote does
not produce one upgrade attempt per cross-node TCP open. `recordFailure`
emits at most one activity-log entry per cache window per (nodeId, code)
so a connect-loop on a single bad remote cannot flush the ring buffer.
Failure messages run through `redactSensitiveText` before reaching the
log so any embedded Bearer / JWT / inline-URL credentials are scrubbed.

`stop()` clears the inflight map and `dial()` checks `this.stopped`
between awaits so a shutdown does not leak a half-opened bridge.

When `awaitOpen` rejects (401, 4403, TLS), the dialer attaches a noop
'error' listener before calling `ws.close()`. Without it the ws library
emits a tail 'error' on a still-CONNECTING socket that propagates as an
unhandled exception. Surfaced by a live-network test against a real
proxy-mode peer.

Adds `mesh-proxy-tunnel-live.test.ts` (skipped unless MESH_AUDIT_URL
and MESH_AUDIT_TOKEN_FILE env vars are set) covering both the happy
path and the auth-rejected path against an actual remote Sencho.

* feat(mesh): instrument proxy tunnel observability

Adds three counters to `PilotMetrics`:
- `proxy_bridges_total` (incremented on `registerProxyBridge` success)
- `proxy_dials_failed` (every failed dial attempt, not deduped)
- `proxy_idle_closes` (idle-sweep teardowns)

All three surface automatically via `GET /api/system/pilot-tunnels`
since the route returns the full `Counters` snapshot.

Gates two pre-existing always-on `console.warn` calls in
`tcpStreamSwitchboard.ts` (mid-stream socket errors and Docker resolve
failures) behind `isDebugEnabled()`. Both fire on per-stream events and
would otherwise violate the diagnostic-log safety rule under load.

Adds `mesh-tcp-stream-switchboard.test.ts` covering the forward
`tcp_open` path: real localhost dial, resolver errors (no_target,
denied), per-tunnel cap saturation, frame-routing fall-through
invariants, `tcp_close` socket teardown.

Drops `MESH_CONNECT_TIMEOUT_MS` from the public surface; only the
switchboard itself uses it.

* fix(mesh): tighten Routing tab unreachable handling

`RoutingNodeCard.tsx`: the **Add stack to mesh** button now disables
when `reachableMode === 'unreachable'`, matching the existing
TogglePill behavior. Without this, an operator on an unreachable node
could open the opt-in sheet, confirm, and watch the redeploy proceed
against a target whose mesh data plane will silently fail to route.
Also drops the leftover `status.nodeId !== -1` guard on the pilot-
offline badge.

`MeshService.ts`: renames `isMeshReachable` to `isMeshConfigured` with
the new predicate that returns true for proxy-mode remotes whose creds
are valid (the tunnel is opened on demand). `getRouteDiagnostic` now
distinguishes "routable" (configured) from "pilotLive" (live tunnel
state, only meaningful for pilot mode); without the split, every idle
proxy-mode route would report `tunnel down`.

`MeshService.setReverseDialer` warns when the unconditional install
path silently overwrites a non-null current dialer. By topology a
Sencho is either pilot or central, so the branch flags a misconfigured
deployment rather than an expected race.

Drops the dead `export { ReverseTcpStreamHandle }` re-export from
`pilot/agent.ts`; its only consumer imports straight from
`mesh/tcpStreamSwitchboard.ts`. Fixes a stale doc comment in
`MeshService.ts` that referenced the wrong source file.

Adds `mesh-proxy-tunnel-handler.test.ts` covering the WS handler
lifecycle: pilot-mode 404 rejection, post-upgrade reverse-dialer
install, concurrent-upgrade 1013 rejection (single-tenant slot), and
error-path teardown.

Updates the troubleshooting accordion in the user docs to mention the
disabled-state behavior.

* fix(mesh): close ESLint and CodeQL findings on the proxy-tunnel diag logs

Remove the unused `reverseDialer` local in `meshProxyTunnel.ts`; the
closure target is `localDialer` above and this assignment was always
dead. Strip line breaks inline on the three `MeshProxyTunnelDialer`
diag log lines so CodeQL `js/log-injection` data flow recognises the
sanitisation that `sanitizeForLog` already performs.

No behaviour change; the diag logs render the same characters they
do today.
2026-05-14 20:51:42 -04:00
Anso f599110386 feat(mesh): collapse sidecar into Sencho process via in-process forwarder (#1000)
The separate saelix/sencho-mesh sidecar container is gone. The
forwarder logic that previously lived in mesh-sidecar/src/forwarder.ts
moves into the Sencho process as backend/src/services/MeshForwarder.ts,
a thin per-port net.Server lifecycle wrapper. MeshService implements
the host interface and owns resolve plus splice; MeshForwarder owns
listener boilerplate. One container per node, no separate image to
publish, no control WebSocket.

Operator-facing change: the Sencho container now runs in
network_mode: host so the forwarder can bind alias ports on the host
network where meshed containers' extra_hosts host-gateway entries
point. Without host network mode the listeners would land in the
container's namespace and inbound traffic from peers would never
reach them. The 1852:1852 port publish becomes a no-op under host
mode and is commented out in the operator template.

Same-node forward path now dials the target container's bridge IP
via Dockerode (preferring the compose default network for
deterministic selection across daemon versions) instead of 127.0.0.1.
The legacy 127.0.0.1 path only worked when the target service
published its port to the host; the IP path works regardless.

Cross-node mesh routing in this phase is central -> pilot direction
only via PilotTunnelManager.openTcpStream. Pilot -> central and
pilot <-> pilot via central relay land in Phase B with the
tcp_open_reverse frame.

Deletions:
- mesh-sidecar/ package entirely (Dockerfile, package, sources, tests)
- backend/src/websocket/meshControl.ts
- MeshService sidecar lifecycle: spawnSidecar, stopSidecar,
  isSidecarRunning, mintSidecarToken, verifySidecarToken,
  attachSidecarSocket, handleSidecarResolve, sendSidecar
- POST /api/mesh/nodes/:id/sidecar/restart route
- /api/mesh/control WS dispatch in upgradeHandler

Type cleanup: 'sidecar' literal removed from MeshActivitySource and
MeshProbeResult.where (also the frontend mirror). MeshNodeStatus
sidecarRunning becomes localForwarderListening (boolean | null) so
non-local nodes get a null instead of an unconditional false; the
honest semantic is "this view only knows the local forwarder state;
remote forwarder status lands in Phase B." MeshNodeDiagnostic
sidecar object becomes forwarder { listening, listenerCount }.

Frontend MeshDiagnosticsSheet drops the restart-sidecar action and
sidecar liveness card; surfaces forwarder state plus a "runs
in-process; no separate container" caption.

Resolves audit findings C-1 (data plane non-functional), C-2 (sidecar
control WS not loopback-enforced), C-4 (sidecar lifecycle Dockerode-
on-remote, PR #999 closed), and C-5 (saelix/sencho-mesh:latest
unreachable). C-3 (PR #992) is unchanged. M-12 (PR #994) is
unchanged.
2026-05-08 15:51:39 -04:00
Anso 7663f4cd8b feat(fleet): sencho mesh in traffic and routing tab (#858)
* feat(fleet): sencho mesh in traffic and routing tab

Lights up Sencho Mesh: cross-node container forwarding rendered as if the
container next to you were on localhost. Builds on the dormant TCP frame
plumbing from the prior PR (pilot tunnel TCP frames + sencho-mesh sidecar
package) and exposes the Admiral-only orchestrator surface.

Backend
- New mesh_stacks table (per-node opt-ins) + nodes.mesh_enabled column
  via DatabaseService.migrateMeshTables.
- MeshService singleton: sidecar lifecycle via Dockerode, opt-in/out with
  cascading override regeneration, request-based resolver from sidecar
  control WS, cross-node TCP forwarding via PilotTunnelManager (same-node
  fast path included), in-memory 1000-event activity ring buffer with
  durable mirror to audit_log for state-change events, per-node and
  per-route diagnostics, and the Test upstream probe.
- MeshComposeOverride: pure YAML generator that injects extra_hosts using
  host-gateway. The user's docker-compose.yml is never mutated; overrides
  live under DATA_DIR/mesh/overrides.
- ComposeService deploy/update splice the override file when the stack
  is opted in; non-mesh stacks behave identically to today.
- Pilot agent resolveMeshTarget consults the local mesh_stacks table
  (defense in depth) and resolves Compose containers via Dockerode.
- /api/mesh router with 13 Admiral-gated endpoints covering status,
  enable/disable, stack opt-in/out, alias listing, per-route diagnostic,
  Test upstream probe, per-node diagnostic, sidecar restart, activity
  log paginated and SSE.
- meshControl WS slot at /api/mesh/control validates the mesh_sidecar
  JWT minted by MeshService; dispatched as upgrade slot 2 (canonical
  order preserved).

Frontend
- New Traffic Routing tab in FleetView, gated by isAdmiral and wrapped
  in AdmiralGate. Tab uses the cyan brand glyph and italic-serif state
  typography from the audit.
- RoutingTab masthead with mesh activity drawer, per-node card grid
  with TogglePill, alias rows with five-state pill taxonomy
  (healthy / degraded / unreachable / tunnel-down / not-authorized),
  inline Test buttons.
- Four sheets: opt-in picker with port-collision inline error,
  per-route detail with diagnostic + filtered activity, per-node
  diagnostics with active streams + resolver cache + restart action,
  fleet-wide activity log with filters.
- meshRouteState helper centralizes pill-state mapping; pure-function
  tests cover all five states.

Docs
- User docs at /docs/features/sencho-mesh.mdx covering opt-in,
  troubleshooting, security model (4 guarantees + 4 explicit
  non-guarantees), and V1 limitations.
- Internal architecture and runbook pages.
- websocket-dispatch internal doc updated with the new slot.

* fix(mesh): validate stack name before path use; fix test DB lifecycle

Two surgical fixes against the prior PR.

Path-injection (CodeQL js/path-injection): MeshService.optInStack,
optOutStack, ensureStackOverride, and removeStackOverride now validate
stackName via isValidStackName from utils/validation, reject malicious
names at the API boundary, and additionally check isPathWithinBase on
the resolved override file path for defense in depth. The dataflow from
req.params.stackName to fs.writeFile no longer reaches an unsanitized
path expression.

Test DB lifecycle: mesh-service.test.ts used per-test setupTestDb /
cleanupTestDb, which deletes the temp dir while DatabaseService still
holds an open SQLite handle. On Linux CI this raises
SQLITE_READONLY_DBMOVED on the next prepare() because the inode has
been unlinked. Switched to file-scoped beforeAll/afterAll matching
agents-routes.test.ts, with a per-test beforeEach that truncates
mesh_stacks plus non-default nodes and resets the MeshService singleton
in-memory state. Adds a new test case asserting the path-traversal
rejection.

* fix(compose): use discovered compose filename instead of hardcoded docker-compose.yml

composeArgs() hardcoded `-f docker-compose.yml` for every deploy. Sencho
writes its canonical compose file as `compose.yaml`, so any stack created
via the UI failed to deploy with `open ...docker-compose.yml: no such
file or directory`.

When no mesh override applies, drop the explicit `-f` so docker compose's
built-in discovery resolves the actual filename. When an override exists,
look up the real base filename via FileSystemService.getComposeFilename()
and pass both files explicitly.

Also hoist the MeshService import to module top now that the dependency
is known to be acyclic, and revert the matching unit-test assertion.
2026-05-01 01:50:53 -04:00
Anso dc3699189d refactor(backend): extract remote proxy, WebSocket upgrade handler, and server factory (phase 3) (#733)
Phase 3 of the index.ts refactor. Pulls the remote HTTP/WS proxy plumbing,
the WebSocket upgrade dispatcher, and the http/WSS construction out of the
monolith. index.ts drops roughly 620 lines.

New modules:
- proxy/websocketProxy.ts: shared httpProxy.createProxyServer singleton
  (used by both the HTTP proxy middleware and the remote WS forwarder)
- proxy/remoteNodeProxy.ts: createRemoteProxyMiddleware() factory; consumes
  the isProxyExemptPath helper instead of open-coding the prefix list
- server.ts: createServer(app) returns { server, wss, pilotTunnelWss }
- services/FleetUpdateTrackerService.ts: singleton wrapping the in-flight
  fleet update tracker Map with create()/resolve() helpers
- helpers/consoleSession.ts: mintConsoleSession(), isConsoleSessionScope()
- websocket/upgradeHandler.ts: attachUpgrade(server, deps) dispatcher that
  runs the manual cookie/JWT verify and delegates to sub-handlers
- websocket/pilotTunnel.ts: handlePilotTunnel (pilot_enroll consumption and
  pilot_tunnel registration)
- websocket/notifications.ts: /ws/notifications local subscriber
- websocket/remoteForwarder.ts: remote-node WS proxy with console_session
  token exchange for interactive paths
- websocket/logs.ts: /api/stacks/:name/logs supervisor stream
- websocket/hostConsole.ts: /api/system/host-console PTY, Admiral-gated
- websocket/generic.ts: /ws exec + streamStats action dispatch, owns the
  terminalWs single-instance reference
- websocket/reject.ts: shared rejectUpgrade helper (replaces five copies)

Service extension:
- NotificationService: setBroadcaster(fn) replaced by subscribe(ws) that
  returns an unsubscriber; broadcastToSubscribers is now internal. Subscriber
  set lives on the service rather than in index.ts.

Wiring in index.ts:
- const app = createApp() already in place from Phase 2
- const { server, wss, pilotTunnelWss } = createServer(app)
- attachUpgrade(server, { wss, pilotTunnelWss })
- app.use('/api/', createRemoteProxyMiddleware())
- /api/system/console-token route now uses mintConsoleSession()
- deploy/down/update routes read the streaming target via getTerminalWs()
  (return type is WebSocket | undefined so the || undefined fallback is gone)

Code review fixes: five duplicated reject helpers collapsed into
websocket/reject.ts; dropped the createTracker/resolveTracker bind
aliases in index.ts so call sites go through the service directly;
removed em dashes; replaced req.url! with req.url || '/'.
2026-04-23 19:31:16 -04:00