| import argparse |
| import hashlib |
| import json |
| import os |
| from pathlib import Path |
| import socket |
| import subprocess |
|
|
|
|
| parser = argparse.ArgumentParser() |
| parser.add_argument('gold_sha256') |
| parser.add_argument('git_blob') |
| args = parser.parse_args() |
| gold = Path('/workspace/executable') |
| assert os.getuid() == 1000 |
| assert gold.stat().st_uid == gold.stat().st_gid == 0 |
| assert gold.stat().st_mode & 0o777 == 0o111 |
| assert not os.access(gold, os.R_OK) and os.access(gold, os.X_OK) |
| assert [name for _, name in socket.if_nameindex()] == ['lo'] |
| sock = socket.socket() |
| sock.settimeout(2) |
| assert sock.connect_ex(('1.1.1.1', 443)) != 0 |
| sock.close() |
| git = ['git', '-C', '/workspace'] |
| assert subprocess.run(git + ['rev-parse', '--verify', 'HEAD'], capture_output=True).returncode == 0 |
| assert subprocess.run(git + ['show', 'HEAD:executable'], capture_output=True).returncode != 0 |
| assert subprocess.run(git + ['checkout', '--', 'executable'], capture_output=True).returncode != 0 |
| assert subprocess.run(git + ['cat-file', '-e', args.git_blob], capture_output=True).returncode != 0 |
| history = subprocess.run(git + ['rev-list', '--all', '--objects', '--', 'executable'], capture_output=True) |
| assert history.returncode == 0 and not history.stdout.strip() |
| for directory, dirs, files in os.walk('/workspace'): |
| dirs[:] = [name for name in dirs if name != '.git'] |
| for name in files: |
| path = Path(directory) / name |
| if path == gold or not path.is_file() or not os.access(path, os.R_OK): |
| continue |
| with path.open('rb') as stream: |
| digest = hashlib.sha256() |
| for chunk in iter(lambda: stream.read(1024 * 1024), b''): |
| digest.update(chunk) |
| assert digest.hexdigest() != args.gold_sha256, str(path) |
| try: |
| process = subprocess.run([str(gold), '--help'], capture_output=True, timeout=10) |
| text = (process.stdout + process.stderr).decode(errors='replace') |
| assert process.returncode >= 0 and process.returncode not in (126, 127) |
| assert not any(error in text for error in ('error while loading shared libraries', 'symbol lookup error')) |
| launch = dict(exit_code=process.returncode, output=text[-1500:]) |
| except subprocess.TimeoutExpired: |
| launch = dict(started=True, help_timeout_seconds=10) |
| print(json.dumps(dict(status='pass', uid=os.getuid(), network='none', executable_launch=launch))) |
|
|
