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from __future__ import annotations
import hashlib
import io
import json
import struct
import tempfile
import unittest
import zipfile
from pathlib import Path
from unittest import mock
from scripts import package_windows_conpty as package
class WindowsConptyPackageTests(unittest.TestCase):
def test_pinned_metadata_and_notices_are_consistent(self) -> None:
metadata = package.load_metadata(package.DEFAULT_METADATA)
self.assertEqual(metadata["package"]["id"], "Microsoft.Windows.Console.ConPTY")
self.assertEqual(metadata["package"]["version"], "1.24.260710001")
self.assertEqual(
{item["destination"] for item in metadata["bundles"]["x86_64"]["files"]},
{
"conpty/conpty.dll",
"conpty/x64/OpenConsole.exe",
"conpty/arm64/OpenConsole.exe",
},
)
loader = (
package.PROJECT_ROOT / "vendor/portable-pty/src/win/psuedocon.rs"
).read_text(encoding="utf-8")
installer = (package.PROJECT_ROOT / "website/install.ps1").read_text(
encoding="utf-8"
)
for item in metadata["bundles"]["x86_64"]["files"]:
self.assertIn(item["sha256"], loader)
self.assertNotIn(item["sha256"], installer)
self.assertIn('Get-Content -LiteralPath $markerPath -Raw', installer)
self.assertIn('$filesProperty.Value.PSObject.Properties[$relative]', installer)
for notice in metadata["notices"]:
source = package.PROJECT_ROOT / notice["source"]
self.assertEqual(package.sha256_file(source), notice["sha256"])
def test_powershell_wrapper_verifies_package_and_signatures(self) -> None:
wrapper = (package.PROJECT_ROOT / "scripts/package_windows_conpty.ps1").read_text(
encoding="utf-8"
)
self.assertIn('"nuget", "verify", "--all"', wrapper)
self.assertIn("Get-AuthenticodeSignature", wrapper)
self.assertIn('conpty\\arm64\\OpenConsole.exe', wrapper)
self.assertIn('conpty\\x64\\OpenConsole.exe', wrapper)
self.assertIn('conpty\\conpty.dll', wrapper)
self.assertIn('"*Microsoft Corporation*"', wrapper)
def test_package_download_has_a_finite_timeout(self) -> None:
payload = b"package"
with tempfile.TemporaryDirectory() as temporary:
destination = Path(temporary) / "conpty.nupkg"
metadata = {
"url": "https://example.invalid/conpty.nupkg",
"sha256": hashlib.sha256(payload).hexdigest(),
}
with mock.patch.object(
package.urllib.request, "urlopen", return_value=io.BytesIO(payload)
) as urlopen:
package.acquire_package(metadata, destination)
urlopen.assert_called_once_with(
metadata["url"], timeout=package.DOWNLOAD_TIMEOUT_SECONDS
)
def test_stage_and_archive_validate_exact_package(self) -> None:
with tempfile.TemporaryDirectory() as temporary:
root = Path(temporary)
dll = self._pe(0x8664, b"dll")
x64_host = self._pe(0x8664, b"x64")
arm64_host = self._pe(0xAA64, b"arm64")
files = [
self._file("runtimes/win-x64/native/conpty.dll", "conpty/conpty.dll", dll, "0x8664"),
self._file(
"build/native/runtimes/x64/OpenConsole.exe",
"conpty/x64/OpenConsole.exe",
x64_host,
"0x8664",
),
self._file(
"build/native/runtimes/arm64/OpenConsole.exe",
"conpty/arm64/OpenConsole.exe",
arm64_host,
"0xaa64",
),
]
nupkg = root / "conpty.nupkg"
self._write_package(nupkg, files, {item["source"]: data for item, data in zip(files, (dll, x64_host, arm64_host))})
metadata_path = root / "conpty.json"
metadata_path.write_text(
json.dumps(
{
"schema_version": 1,
"package": {
"id": "Microsoft.Windows.Console.ConPTY",
"version": "1.24.260710001",
"url": nupkg.as_uri(),
"sha256": package.sha256_file(nupkg),
"license": "MIT",
},
"bundles": {"x86_64": {"files": files}},
"notices": [],
}
),
encoding="utf-8",
)
herdr = root / "input-herdr.exe"
herdr.write_bytes(b"herdr")
stage = root / "stage"
package.stage_bundle(metadata_path, "x86_64", nupkg, herdr, stage)
package.validate_stage(metadata_path, "x86_64", stage)
output = root / "herdr.zip"
package.archive_bundle(metadata_path, "x86_64", stage, output)
with zipfile.ZipFile(output) as archive:
self.assertEqual(
set(archive.namelist()),
package.expected_stage_files(
package.load_metadata(metadata_path), "x86_64"
),
)
(stage / "conpty" / "conpty.dll").write_bytes(b"tampered")
with self.assertRaisesRegex(ValueError, "staged file hash mismatch"):
package.validate_stage(metadata_path, "x86_64", stage)
@staticmethod
def _pe(machine: int, payload: bytes) -> bytes:
data = bytearray(0x80)
data[:2] = b"MZ"
struct.pack_into("<I", data, 0x3C, 0x40)
data[0x40:0x44] = b"PE\0\0"
struct.pack_into("<H", data, 0x44, machine)
return bytes(data) + payload
@staticmethod
def _file(source: str, destination: str, data: bytes, machine: str) -> dict[str, str]:
return {
"source": source,
"destination": destination,
"sha256": hashlib.sha256(data).hexdigest(),
"pe_machine": machine,
}
@staticmethod
def _write_package(
path: Path, files: list[dict[str, str]], payloads: dict[str, bytes]
) -> None:
nuspec = """<?xml version="1.0" encoding="utf-8"?>
<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
<metadata>
<id>Microsoft.Windows.Console.ConPTY</id>
<version>1.24.260710001</version>
<license type="expression">MIT</license>
</metadata>
</package>
"""
with zipfile.ZipFile(path, "w") as archive:
archive.writestr("Microsoft.Windows.Console.ConPTY.nuspec", nuspec)
for item in files:
archive.writestr(item["source"], payloads[item["source"]])
if __name__ == "__main__":
unittest.main()
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