fix(cookbook): stop Windows process trees (#4283)

tests/test_cookbook_windows_stop_tree_js.py

@@ -0,0 +1,58 @@
+import shlex
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+RUNNING_JS = ROOT / "static" / "js" / "cookbookRunning.js"
+
+
+def _between(source, start, end):
+    start_idx = source.index(start)
+    end_idx = source.index(end, start_idx)
+    return source[start_idx:end_idx]
+
+
+def test_windows_graceful_kill_reuses_recursive_stop_tree_helper():
+    source = RUNNING_JS.read_text(encoding="utf-8")
+    wrapper = _between(source, "function _winPowerShellCmd(task, ps)", "function _winSessionStopTreePs(task)")
+    helper = _between(source, "function _winSessionStopTreePs(task)", "function _tmuxGracefulKill(task)")
+    graceful = _between(source, "function _tmuxGracefulKill(task)", "function _shQuote(value)")
+    win_session = _between(source, "function _winSessionCmd(task, tmuxArgs)", "function _winPowerShellCmd(task, ps)")
+
+    assert "function Stop-Tree([int]$Id)" in helper
+    assert "('ParentProcessId = ' + $Id)" in helper
+    assert "Stop-Tree ([int]$p)" in helper
+    assert "${_shQuote(command)}" in wrapper
+    assert "_winSessionStopTreePs(task)" in win_session
+    assert "_winPowerShellCmd(task, ps)" in win_session
+    assert "_winSessionStopTreePs(task)" in graceful
+    assert "_winPowerShellCmd(task, ps)" in graceful
+    assert "Stop-Process -Id $p -Force" not in graceful
+    assert '-Filter "ParentProcessId = $Id"' not in helper
+    assert 'powershell -Command \\\\"${ps}\\\\"' not in source
+
+
+def _posix_quote(value):
+    return "'" + value.replace("'", "'\\''") + "'"
+
+
+def test_remote_windows_stop_tree_payload_survives_shell_parsing():
+    ps = (
+        "function Stop-Tree([int]$Id) { "
+        "Get-CimInstance Win32_Process -Filter ('ParentProcessId = ' + $Id) "
+        "-ErrorAction SilentlyContinue | ForEach-Object { Stop-Tree ([int]$_.ProcessId) }; "
+        "Stop-Process -Id $Id -Force -ErrorAction SilentlyContinue }; "
+        "$p = Get-Content '$env:TEMP\\odysseus-sessions\\serve_abc.pid' "
+        "-ErrorAction SilentlyContinue; "
+        "if ($p -match '^\\d+$') { Stop-Tree ([int]$p) }"
+    )
+    remote_command = f'powershell -Command "{ps}"'
+    shell_command = f"ssh -p 2222 winbox {_posix_quote(remote_command)}"
+
+    argv = shlex.split(shell_command)
+
+    assert argv == ["ssh", "-p", "2222", "winbox", remote_command]
+    assert "$Id" in argv[-1]
+    assert "$_.ProcessId" in argv[-1]
+    assert "$env:TEMP" in argv[-1]
+    assert "$p" in argv[-1]