ARNOandARNO 7d86b86d35 fix(windows): prevent daemon from inheriting policy that blocks scoop junctions (#292) ...

Some Windows shell brokers enforce `ProcessRedirectionTrustPolicy` on what
they launch. The daemon inherited it, every ConPTY shell under the daemon
inherited it in turn, and PowerShell could then no longer traverse a
user-created junction — which is exactly what Scoop's `current` links are.
`oh-my-posh` and `fzf` died with `Shim: Could not determine if target is a
GUI app`. Windows Terminal was unaffected because its process tree never
picked the policy up.

The policy cannot be relaxed once enabled, so the fix is to not inherit it:
when tty7 detects the enforcing bit, it creates the daemon with
`STARTUPINFOEXW` and `PROC_THREAD_ATTRIBUTE_PARENT_PROCESS` naming the
interactive desktop shell, which supplies the ordinary desktop token, device
map, and mitigation policy. The Win32 code stays isolated in
`daemon/spawn/windows.rs`, and the ordinary path still runs whenever the
policy is absent — or whenever the desktop shell cannot be borrowed, in
which case tty7 logs a warning and starts degraded rather than not at all.

Because naming a logical parent makes handle inheritance follow that
process, the daemon starts with no standard handles. `daemon::server` and
the pane reader's trace line now write to stderr in a way that tolerates
that, instead of `eprintln!`, which panics on a failed write.

ConPTY exit ordering: the process-exit monitor could observe a short-lived
shell exiting before the reader had delivered its final frame, so `Exited`
reached clients ahead of the output that preceded it. The monitor now
releases the pseudoconsole and lets the reader — which reports only after
forwarding everything up to EOF — announce the death, with a bounded window
behind it for the case where EOF never arrives because a grandchild holds
the ConPTY output pipe open.

Note this changes the daemon's token on the clean-parent path: it derives
from Explorer, so an elevated tty7 starts a medium-integrity daemon.

Co-authored-by: ARNO <ArnoChenFx@users.noreply.github.com>

2026-08-02 10:59:47 +08:00

..

tty7-cli

test(cli): close the raw/plain capture race in the e2e plain test (#299)

2026-08-02 10:08:04 +08:00

tty7-core

fix(windows): prevent daemon from inheriting policy that blocks scoop junctions (#292)

2026-08-02 10:59:47 +08:00

tty7-server

fix(windows): prevent daemon from inheriting policy that blocks scoop junctions (#292)

2026-08-02 10:59:47 +08:00