Commit Graph
4 Commits
Author SHA1 Message Date
Neilandm4air dddc1260e5 chore(lint): oxlint 1.91, cheap perf/correctness rules, return-await fixes (#39730)
* chore(lint): bump oxlint to 1.91, add perf lint rules and perf audits

* fix(lint): await promises returned inside try/catch/finally for return-await

Prepare typescript/return-await with error-handling-correctness-only: await
returns whose catch or finally was meant to cover them, and suppress the eight
sites where the catch must not re-handle the returned promise.

* chore(lint): enable return-await (error-handling-correctness-only); exempt secondary-scan directives in the changed gate

* refactor(mobile): move file preview discard modal into its own module

Keeps MobileFilePreviewScreen under the 400-line limit after merging main.

---------

Co-authored-by: m4air <m4air@m4airs-MacBook-Air.local>
2026-11-08 06:21:54 -08:00
Brennan Benson 07b437c9e9 fix(terminal): detect foreground from the physical PTY owner (#36342)
* fix(terminal): observe foreground at the physical PTY owner

* fix(terminal): keep existing inventory, inspection and display semantics around master-group foreground

Review round 1 fixes for the physical-owner foreground observation:

- Stop and liveness verification keep complete-inventory proof: the router's
  scoped listProcesses({ptyIds}) is owner resolution again (absent = []).
  Only the launch guard's old-owner fallback asks for an established
  target's owner via an internal targetOwnerOnly option.
- Degraded daemon mode routes foreground observations and target reads to
  the established owner, so an unreachable unrelated daemon cannot refuse a
  known terminal there either.
- Display and name refreshes read the master's foreground group but take
  member rows from the shared single-flight process-table snapshot; no
  per-terminal ps per refresh. Recognized agent names skip the confirm scan
  again, and builds without the native accessor keep the existing reader.
- Ordinary inspections keep their first-match routing; strict owner and
  incarnation checks apply only to foreground decisions. The unused
  foregroundOnly preload/IPC/RPC surface is removed.
- Local inventory forwards only the target scope, never caller deadlines.
- An interpreter running an agent script counts as that agent, as before;
  a blank argv row no longer voids a terminal capture outside the
  foreground group.
- Bump the packaged compatibility contract to daemon protocol 55 and move
  the node-pty accessor above the process getter's doc comment.

* fix(terminal): keep the node-pty patch hunk well-formed and drop redundant foreground tests

Remove two stray context lines from the src/unixTerminal.ts hunk so its body
matches its header (strict patch parsers reject the mismatch), and update the
lockfile patch hash. Prune foreground tests whose rows repeat branches the
parity table already covers.

* fix(terminal): index the shared snapshot by TTY once and keep observation age nonnegative

Display refreshes filtered the whole shared process table per pane, so
work grew with panes times processes. Group each snapshot by normalized
TTY once, memoized by array identity, and look each pane up directly;
the scaling contract now counts row TTY reads at N and 10N panes.

Both foreground observation producers clamp capturedAgeMs at zero, so a
wall-clock step back during the read no longer yields an envelope the
validator rejects and the launch guard refuses.

* test: move foreground-observation compat tests into the protocol compatibility suite

Main removed daemon-pty-adapter-steady-state-compat.test.ts; the merge restored it with only this branch's block. Reuse the suite's existing inspection adapter helper so no new type assertion is added.
2026-11-01 15:32:17 -08:00
Neil 756d623955 perf(terminal): bound the in-process macOS process table's blocking calls and ps fallbacks (#31783) (#36282)
* fix(terminal): bound the in-process macOS process table's blocking calls and ps fallbacks (#31783)

Follow-up to #35987 from its post-merge reviews.

- cwd and executable path: node-pty's readProcessCwd/readProcessPath now run
  PROC_PIDVNODEPATHINFO and proc_pidpath on a libuv worker (the synchronous
  exports are gone, so an older pty.node falls back to ps/lsof). JS caps them at
  two outstanding lookups and 250ms; a wedged mount or a full cap answers from
  lsof -b, which never stats, so a dead NFS/SMB/FUSE mount cannot freeze the
  daemon's event loop or take the whole pool.
- Unreadable argv prints "(comm)", as ps does, instead of a proc_pidpath lookup
  under Orca's credentials on the table worker.
- The table exports each row's euid. Argv recovery runs setuid ps only for
  another user's processes, never for our own mid-exec or exiting ones (or
  SIDL/exiting rows), which ps cannot read either: a pane looping short
  commands forked ps on ~15% of full reads, now none.
- Recovery is coalesced per process across concurrent readers and a failed
  recovery waits 5s before costing another ps. The cache keys on comm and start
  time.
- Full-table and shell-foreground captures, which feed strict evidence with
  the capture's age, take only argv ps read after their request; display
  readers keep the 30s cache.
- While the reader is down (stalled-pool breaker open, or a rejecting addon,
  which now backs off 1s..30s), runPsInProcess runs /bin/ps itself through one
  shared budget: identical invocations share a run, a burst of 4 forks then one
  a second, and a run spawned before a request never answers it. Descendant
  teardown and foreground-group signalling keep their own full-timeout ps
  (callerRunsPs). 13 pollers at 750ms: 1,040 ps/min before, 63 after.

No daemon protocol bump: the wire format is unchanged, and each daemon loads
JS and pty.node from the same runtime copy.

* fix(terminal): make the libproc reader survive worker teardown, fail closed and share one fair fork budget (#31783)

Review follow-ups to the previous commit.

- Native: every libproc AsyncWorker derives from OrcaPromiseWorker, which skips
  JS completion once an env cleanup hook marks the env closing and swallows a
  Napi::Error thrown mid-teardown. Terminating a worker_thread with cwd or table
  reads in flight aborted the process; 200 terminates each now survive.
- (comm) in a terminal's foreground group (argv neither reader recovered, e.g.
  a root `su`) judges 'unknown', never 'agent', so the launch line is not typed
  into it.
- Fresh argv only for getFreshSnapshot captures; the 500ms TTL readers keep the
  30s cache. Argv recovery runs through its own fork budget (2, then one per
  2s). Root `su` pane, 13 pollers at 750ms: TTL 79 -> 2 ps/min, fresh 158 -> 31.
- The fork budget serves invocations in FIFO turns, grouping each one's waiters
  onto one run. 13 streams: served 80,42,1,1,2,0x8 -> 10-12 each.
- Forced subprocess captures (a held naming pass) go through the fallback
  budget: 5 readers, 400 direct ps/min -> 63, 395 of 400 captures served.
- A failed recovery is retried 5s after ps gave up, not after it started.
- Tests pin Orca's euid instead of reading the runner's and assuming root is 0.
- process-cwd keeps one lsof per pid until it exits, so a dead mount no longer
  leaks one per poll; shell readiness reads the exe path through runProcess,
  which gives up on an lsof that ignores SIGTERM.
- A #35987 pty.node (table reader, no async path reads) keeps the in-process
  table; cwd/path use lsof, with a one-time warning.
- captureProcessTable moves to process-table-ps-capture.ts.

* fix(terminal): make withheld argv unverifiable and reuse recovered argv for at most 2s (#31783)

Round-2 review follow-ups.

- Worker teardown: drop OrcaPromiseWorker and its env flag (Node drains the
  pool before cleanup hooks, so it never fired). node-pty's mac pty target now
  builds with NODE_API_SWALLOW_UNTHROWABLE_EXCEPTIONS, which covers both the
  call-in and completion paths. The smoke test now calls the reads from a
  timer while terminating: the previous build aborted 2 of 3 runs, this one
  survives 3/3 x 100. pty.cc is back to the first follow-up's exact content.
- A foreground process whose argv ps withheld (`(comm)`: another user's,
  exiting, or a recovery the budget skipped) makes the batch resolver, and so
  host-stamped evidence, `argv_unreadable`/unverifiable rather than live with no
  agent; agent-foreground resolution reports it unavailable.
- judgeTerminalForeground fails closed only for an unreadable shell (`(bash)`
  from a root `su`), not our own exiting `(git)`.
- Recovered argv is reused for at most 2s per identity (pid, start, comm) for
  every reader (the next commit ages evidence by it), and
  fresh reads no longer queue behind the recovery budget. Root `su` pane, 13
  fresh pollers: p50 2,989ms -> 53ms, 31 -> 26 ps/min (TTL reader 1 -> 26).
- The fork budgets serve interactive and fresh readers before display polls
  (cheap and TTL snapshot captures), FIFO within each. 20 display streams plus
  a 3s launch-paste read every 5s: 0/12 -> 12/12 served, polls 4-7 each.
- On a selected terminal, the foreground group's argv is recovered even with no
  process of ours left (`exec su`); the root login is not.
- Budgeted captures keep the 32 MiB output ceiling.

* fix(terminal): age strict evidence by its oldest recovered argv (#31783)

Round-3 review follow-ups.

- Recovered argv carried no read time, so a capture reusing it (cached, or a
  recovery still in flight) stamped its own capture time over argv up to 2s
  older, and the remote write guard could take a same-comm re-exec for the
  agent. Rows now carry when ps read their recovered argv; runPsInProcess
  reports the oldest through onArgvReadAt, and the snapshot reader stamps
  capturedAtMs at that input, so capturedAgeMs is the age of the oldest input
  and consumers' own freshness checks (the write guard's 500ms) decide. A
  recovery begun more than 2s before a reader asked no longer answers it, and
  an older recovery finishing late cannot replace a newer one.
- resolveSpawnFileForegroundFromRows reports a withheld `(node)` foreground
  unavailable.
- One budget queue entry per invocation: an interactive request promotes a
  queued poll's, a poll joins an interactive one.
- parseShellForegroundRows gets its JSDoc back.

* fix(terminal): keep a cached name from authorizing a refused write; integer, under-2s argv ages (#31783)

Round-4 review follow-ups.

- When the relay's evidence declines a write (stale, unverifiable, another
  agent), its foreground name may still prove the shell but no longer proves
  the agent: that name can be the tracker's 1s display cache, e.g. `claude`
  cached just before Claude exited to a root shell under su. Relays that send
  no evidence keep the name as before.
- Snapshot ages round up to whole milliseconds; the wire rejects fractions
  from the monotonic-to-wall conversion.
- Recovered argv is reused for at most 1.5s, so reuse plus the 500ms snapshot
  cache stays under the 2s freshness gate; reuse ages from when that ps
  spawned, not from the wait for its fork token, and only an answer is
  remembered (a timed-out or withheld run proves nothing). Fork budget
  unchanged. Root su pane, 13 pollers: 30 ps/min; fresh p50 51ms; strict
  evidence age p50 752ms, max 1,508ms.

* fix(terminal): keep the relay's agent name behind structurally unverifiable evidence (#31783)

The previous commit refused the name fallback whenever the relay sent any
evidence, so `unverifiable` evidence for structural reasons also blocked
writes: npm Codex (node codex.js spawning native codex) and Gemini (relaunching
itself) put two agent rows in the foreground group (ambiguous_foreground_group),
and remote tmux reads multiplexer_boundary. On SSH POSIX hosts that dropped
launch prompts and failed worker briefs, conversation send/cancel and
automations with agent_not_in_foreground.

The name now cannot authorize only when the evidence saw the group (`live`:
stale, or no agent in it, as in the cached-`claude`-over-root-shell repro) or
withheld a foreground argv (`argv_unreadable`, possibly a root `su` shell).
Other unverifiable reasons keep the name fallback, as before this branch.

* fix(terminal): let a relay name complete only fresh agent-positive evidence (#31783)

The SSH name fallback still let a stale or cached name authorize a write under
any unverifiable reason but argv_unreadable: ps EAGAIN (process_table_unreadable)
after the tracker cached `claude` over a root bash, anchor_missing,
tty_boundary (`sudo -i` with use_pty, a root shell on a new pty), or a 1.5s-old
ambiguous capture.

- The name now completes evidence only when it is fresh (within the guard's
  500ms bound), its reason is one that saw an agent row
  (ambiguous_foreground_group, multiplexer_boundary,
  candidate_start_time_missing), and the name is the launched agent. Every other
  reason, including ones this build does not know, reads unknown. Relays that
  send no evidence keep the name, for mixed versions.
- The relay's evidence names one agent that holds two rows of the group (npm
  Codex: node codex.js spawning native codex; Gemini relaunching itself), so a
  new relay proves them live even when its name is `node`. Two different agents
  stay ambiguous. No wire change.

* fix(terminal): judge a relay name by the host's capture age; keep old relays' npm Codex (#31783)

- Name completion compared the capture's start with the read's start, so a
  slow response made old evidence look fresh: a capture 1,500ms old arriving
  after 1,100ms passed. It now uses the host-reported capturedAgeMs against
  the 500ms bound, which latency cannot shrink. Live evidence keeps its
  capture-start rule.
- Relays before same-agent dedupe report npm Codex (node wrapper plus native
  binary) as ambiguous_foreground_group and name it `node`. For that reason
  only, `node` now completes the evidence when the launched agent is
  npm-installed per the node entrypoint tables; other agents and reasons stay
  fail-closed.

* fix(terminal): bound relay-name completion by twice the snapshot TTL (#31783)

The 500ms bound refused ~9.5% of tmux name completions on a host with 13
pollers (cached snapshot up to one 500ms TTL old plus ~30ms capture, max
528ms), and a refusal drops the launch prompt or throws with no retry. The
bound is now 2 x PROCESS_TABLE_SNAPSHOT_MAX_STALENESS_MS (1s), still on the
host-reported age: 0 of 767 reads exceed it, the delayed 1,500ms repro still
refuses, and the cached-name hazard (the tracker's ~1s display cache) is no
wider.

* fix(terminal): complete relay evidence with a name read now, not the display cache (#31783)

With the 1s bound, a capture at 0-528ms, `codex` cached at 100ms, Codex
exiting at 101ms and the guard at 999ms still let the cached name authorize a
write over the bash that replaced it.

- Name completion (structural reasons, host age within 2x the snapshot TTL)
  now asks confirmForegroundProcess, which reads the foreground now (a fresh
  scan, or node-pty's raw process name) rather than the tracker's 1s display
  cache; a null answer reads unknown. No new wire surface: the local daemon answers
  confirmForegroundProcess, paired runtimes evaluate guards locally, and the
  production controller returns null (read as unknown, failing safe) when a
  provider lacks it. Controllers without the method, and relays sending no
  evidence, keep the cached name as the legacy path.
- Live evidence also accepts a host-reported age within 2x the TTL, so a real
  agent behind a 500-528ms cached snapshot on a fast link is no longer
  refused; a capture begun after the read was asked still counts, and
  5,000ms-old evidence still refuses.

* fix(terminal): confirm live evidence older than one snapshot TTL with a fresh read (#31783)

Accepting live evidence up to 2x the TTL reopened the window the previous
commit closed for name completion: a capture at 0-528ms, the agent exiting at
~529ms, and at 999ms `live claude` still read as agent over a bash.

Live evidence begun no more than one TTL before the read was asked (so any
host age within one TTL, however long ps took) still answers alone. Between
that and 2x the TTL, confirmForegroundProcess reads the foreground now: the
launched agent proves it, a shell reads shell, anything else unknown.
Controllers without that read fall through and refuse, as before.

Reachability: the remote (host.remote) write-guard path has no production
caller since the SSH provider's removal (#27499); the registry dispatches only
local providers and paired runtimes evaluate guards locally. This is defence
in depth for any future remote provider.
2026-10-30 01:05:34 -07:00
Neil 525719789f perf(terminal): read the macOS process table in process instead of forking setuid ps (#35987)
* perf(terminal): read the macOS process table in process instead of forking setuid ps (#31783)

/bin/ps is setuid root, so every exec costs an uncached syspolicyd
assessment and an EDR inspection. The terminal host forked ~7-10 ps/lsof
per second with 4 agent panes, and each stale daemon multiplied that.

node-pty's patched pty.node now exports processTable (sysctl
KERN_PROC_ALL/KERN_PROCARGS2 on a worker thread), processCwd
(PROC_PIDVNODEPATHINFO) and processPath (proc_pidpath). runPsInProcess
renders the same ps column text for the invocations Orca issues, so the
existing parsers and callers are unchanged; anything it cannot reproduce,
non-macOS hosts, and builds without the exports keep running ps/lsof.

Measured with 4 anchored panes polled every 750 ms for 60 s: ~440
ps/lsof children before, 0 after.

* fix(daemon): roll the in-process macOS process table into a fresh v54 daemon (#31783)

* fix(terminal): bound, escape and complete the in-process macOS process table like ps (#31783)

Review follow-ups for the libproc reader:

- Timeouts: every caller passes its ps timeout; a read stalled behind a
  saturated libuv pool resolves timed out (code null, timedOut) at that
  budget, exactly as the killed ps would. Identical native reads share one
  worker, each caller racing its own deadline; past 8 distinct reads in
  flight callers run ps. execFile-shaped callers reject like a failed child.
- tty naming shares one slot with captureDarwinProcessTable's guard, so a
  draining naming pass sends both paths to ps instead of naming again.
- Commands: the addon renders argv with adv_cmds' getproclline and strnvis
  (VIS_TAB|VIS_NL|VIS_NOSLASH) under the caller's LC_CTYPE via a
  thread-scoped uselocale, so newlines print as \012 instead of splitting
  tokens; zombies print <defunct>.
- Other users' processes: unreadable argv is marked commandIncomplete. Only
  -p selections and processes on a terminal under the user's own readable
  process there (sudo in a pane) get a targeted `ps -p ... -o pid=,command=`,
  cached by (locale, pid, start time); root daemons and a pane's root login
  never spawn ps.
- -t selects with KERN_PROC_TTY after ps's addelem_tty path resolution, so
  per-terminal reads skip argv for every other process (~0.3 ms vs 4 ms ps).
- -p deduplicates; rows sort by terminal then pid as pscomp(); stat adds
  ps's < N X V L modifiers. The export is renamed readProcessTable so an
  older pty.node falls back to ps rather than misreading the new query.

* test(terminal): diff the real libproc addon against /bin/ps on macOS (#31783)

Spawns a pty holder whose argv carries a newline, tab, invalid UTF-8 and é,
then compares Orca's ps invocations column by column: pid/ppid/pgid/tpgid/
lstart/tdev/tty exactly, commands for the user's own processes, and stat
modulo running/idle (thread state needs setuid ps). Rows are compared only
when two in-process reads around the ps run agree, so churn cannot flake it.

* fix(terminal): never serve a native process table read begun before the request (#31783)

A timed-out read stayed shareable, so a later descendant capture could join
an earlier poll's abandoned worker and take its rows as fresh; a descendant
that exited meanwhile could have its reused pid SIGTERMed. The addon now
reports when its worker actually began reading (startedAtMs), and
runPsInProcess refuses a shared read that began before its own request and
reads again, so every consumer that signals from rows (descendant
teardown, foreground-group signalling, identity probes) only sees rows
scanned after its stamp. Regression: pty-descendant-termination-libproc.

Also from review:
- argv recovered with setuid ps is keyed by pid, start time to the
  microsecond, comm and executable path (exec changes the latter two) with
  a 10 min TTL and 512-entry bound.
- Recovery covers a sudo use_pty tree: the unreadable chain must start on
  the terminal of the user's own readable process, so the root shell and
  agent on sudo's own pty qualify while root daemons, GUI helpers and a
  pane's root login (own pty, under a terminal-less or tty-inheriting host)
  do not.
- Concurrent tty= readers wait out the single naming pass, and readers past
  the 8-read cap queue behind one, within their deadlines, instead of
  bursting /bin/ps at startup restore (24 panes polled at once: 0 ps).
- darwin-terminal-naming-slot.ts is now darwin-terminal-naming-single-flight.ts.

* test(terminal): require /bin/ps row order in the libproc parity test (#31783)

Parsers that take the first matching row depend on ps's terminal-then-pid
order, so compare the order of the rows both captures share, not just their
contents.

* test(terminal): pin libproc read start times instead of reading the wall clock (#31783)

* fix(terminal): match native process table reads to requests by sequence, not wall clock (#31783)

Freshness compared the worker's gettimeofday with Date.now(), so a clock
step back let an abandoned read's rows through (wrong-pid SIGTERM) and a
step forward could reject fresh reads until the deadline. Each read now
takes a JS-side sequence number when created and is submitted a microtask
later; a caller joins only a read not yet submitted or created after it
registered, so callers in one turn share a worker and nothing submitted
before a request serves it. The addon drops startedAtMs again. Deadlines,
timeouts and the argv cache use performance.now().

Callers past the 8-read cap wait on one slot notifier and each joined read
has one settle notifier; both unsubscribe on timeout, so a stalled pool
retains no per-caller reactions. If the pool is still at the cap when an
overflow caller's deadline passes, the reader is marked stalled for 30s
and callers run ps, as before this branch.

Recovered argv is trusted for 30s: exec can keep pid, start time, comm and
executable (node -> node with another script) and no cheap field shows it,
so a sudo pane costs one targeted ps per process per 30s.

* fix(terminal): keep ps fallbacks off a stuck terminal naming pass (#31783)

- captureDarwinProcessTable's canonical fallback, taken while the naming
  slot is busy, now runs /bin/ps directly instead of re-entering the
  in-process reader and waiting on that same slot (a held lstat timed out
  every strict capture without one subprocess fallback).
- In-process tty= readers wait out a short pass (startup restore) but hand
  a pass older than 500ms to ps, which names terminals out of process.
- The naming single flight keeps one settle notifier per pass; waiters sit
  in a Set and drop off on timeout, so timed-out callers leave no reactions
  on a stuck pass (was one per call). The notifier moves to
  deadline-settle-notifier.ts, shared with the native read scheduler.
- Once the native read breaker has tripped, a caller finding the cap still
  held after the cool-down returns to ps at once instead of waiting out its
  timeout.
- Descendant teardown and foreground-group signalling give the native read
  half their budget and fall back to a fresh ps on a native timeout, so a
  partly stalled pool cannot cost a kill.

* fix(terminal): give signalling ps fallbacks their full baseline timeout (#31783)

Splitting the budget in half shrank ps's window behind a stalled native
read: a 750ms ps lost descendant SIGTERMs and an 80ms foreground ps lost
group SIGWINCH. Descendant teardown and foreground-group signalling now try
the native reader for min(150ms, timeout/4) (inProcessSliceMs), then give
ps the whole original timeout; readProcessTableBeforeDeadline extends the
production reader's outer deadline by that slice, so ps succeeds exactly
when it did on main. The stale-read regression test now also asserts the
fresh rows' real descendant is signalled.

* fix(terminal): carry the in-process deadline allowance through every descendant reader (#31783)

readProcessTableBeforeDeadline granted the native slice only when the
reader was readProcessTable by identity, so the daemon shutdown sweep's
sharing wrapper kept a bare 250ms deadline: a stalled native read plus a
200ms ps missed it on every retry and descendants survived shutdown.
ProcessTableReader now declares deadlineAllowanceMs; the fresh reader sets
it (0 without the addon or with a stalled pool, so Linux and ps-only hosts
keep their exact deadlines), createProcessTableSnapshotReader and the
shutdown wrapper inherit it, and injected readers default to none. The
fresh reader moves to pty-descendant-fresh-table.ts. The real-ps parity
test gets a 30s per-case timeout, since whole-table /bin/ps runs slow
under suite load.

* chore(terminal): move the descendant reader's child_process baseline entry with it (#31783)

* test(terminal): pin the libproc test locale so lstart doesn't follow the runner's LANG (#31783)
2026-10-29 09:51:53 -07:00