129 lines
5.5 KiB
Python
129 lines
5.5 KiB
Python
#!/usr/bin/env python3
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"""Publish only the reviewed IM hotfix; no DB writes, migrations, or frontend changes."""
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import fcntl
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import hashlib
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import json
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import os
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import pwd
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import shutil
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import sys
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import time
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import urllib.error
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import zipfile
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from pathlib import Path
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sys.path.insert(0, '/www/server/xingyu-im/ops')
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from baota_publish_test_users import BT, WEB, database, digest, env_values, extract, fetch, health, query, restart
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OLD = '54e699a73fd6d3cec7baae3b1224a03cca6f2ddfdcb91c23f05e1fa258514b56'
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BASE = Path('/www/server/xingyu-im/releases/application-20260831-121140')
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ALLOWED = {'backend/internal/app/im.go', 'backend/internal/app/im_unread_integration_test.go'}
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def source_hashes(archive):
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with zipfile.ZipFile(str(archive)) as package:
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result = {}
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for item in package.infolist():
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if item.is_dir():
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continue
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name = item.filename.replace('\\', '/')
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assert name not in result and not name.startswith('/') and '..' not in Path(name).parts
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result[name] = hashlib.sha256(package.read(item)).hexdigest()
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return result
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def running(expected):
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pids = []
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for proc in Path('/proc').iterdir():
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if not proc.name.isdigit():
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continue
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try:
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if os.readlink(str(proc / 'exe')) == str(BT / 'xingyu-api'):
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assert digest(proc / 'exe') == expected
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pids.append(int(proc.name))
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except (FileNotFoundError, PermissionError):
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pass
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assert len(pids) == 1, 'expected one running project executable'
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return pids
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def replace(source, stamp):
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temporary = BT / ('xingyu-api.im-unread-' + stamp)
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assert not temporary.exists()
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shutil.copy2(str(source), str(temporary))
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www = pwd.getpwnam('www')
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os.chown(str(temporary), www.pw_uid, www.pw_gid)
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os.chmod(str(temporary), 0o750)
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os.replace(str(temporary), str(BT / 'xingyu-api'))
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def publish(archive, expected):
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assert os.geteuid() == 0
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archive = Path(archive).resolve()
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assert archive.parent == Path('/tmp') and digest(archive) == expected
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lock = open('/www/server/xingyu-im/ops/application-release.lock', 'a')
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fcntl.flock(lock, fcntl.LOCK_EX | fcntl.LOCK_NB)
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assert digest(BT / 'xingyu-api') == OLD, 'production changed; re-audit required'
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running(OLD)
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health()
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stamp = time.strftime('%Y%m%d-%H%M%S')
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stage = Path('/www/server/xingyu-im/releases/im-unread-' + stamp)
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extract(archive, stage)
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os.chmod(str(stage), 0o700)
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old_source = source_hashes(BASE / 'backend-source.zip')
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new_source = source_hashes(stage / 'backend-source.zip')
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changed = {name for name in set(old_source) | set(new_source) if old_source.get(name) != new_source.get(name)}
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assert changed == ALLOWED, 'unreviewed source changes: ' + repr(changed)
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new_hash = digest(stage / 'xingyu-api')
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assert (stage / 'xingyu-api').read_bytes()[:4] == b'\x7fELF' and new_hash != OLD
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manifest = json.loads((stage / 'manifest.json').read_text())
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for name in ['xingyu-api', 'backend-source.zip']:
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assert digest(stage / name) == manifest['files'][name]
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conn, _ = database(env_values())
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try:
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before_migrations = dict(query(conn, 'SELECT version,checksum FROM schema_migrations'))
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for name, sha in before_migrations.items():
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assert new_source['backend/migrations/' + name] == sha
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assert len(before_migrations) == len([name for name in new_source if name.startswith('backend/migrations/')])
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frontend = {name: str((WEB / name).resolve()) for name in ['admin', 'app']}
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backup = Path('/www/backup/xingyu-im-unread-' + stamp)
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backup.mkdir(mode=0o700)
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shutil.copy2(str(BT / 'xingyu-api'), str(backup / 'xingyu-api-original'))
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state = {'backup': str(backup), 'stage': str(stage), 'previousBackendSha256': OLD, 'backendSha256': new_hash,
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'archiveSha256': expected, 'changedSourceFiles': sorted(changed), 'frontendUnchanged': frontend,
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'databaseMigrationsApplied': [], 'businessDataWrites': False}
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(backup / 'before.json').write_text(json.dumps(state, indent=2))
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print('BACKUP_VERIFIED=' + str(backup), flush=True)
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changed_binary = False
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try:
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replace(stage / 'xingyu-api', stamp)
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changed_binary = True
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restart()
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state['runningPids'] = running(new_hash)
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assert digest(BT / 'xingyu-api') == new_hash
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assert dict(query(conn, 'SELECT version,checksum FROM schema_migrations')) == before_migrations
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assert {name: str((WEB / name).resolve()) for name in frontend} == frontend
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for path in ['/api/v1/im/conversations', '/admin/v1/users', '/ws']:
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try:
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fetch(path)
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except urllib.error.HTTPError as error:
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assert error.code == 401
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else:
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raise RuntimeError('private endpoint became public')
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state['healthAndAuthChecks'] = True
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(backup / 'result.json').write_text(json.dumps(state, indent=2))
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print(json.dumps(state), flush=True)
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except Exception:
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if changed_binary:
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replace(backup / 'xingyu-api-original', stamp + '-rollback')
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restart()
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running(OLD)
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(backup / 'rolled-back.txt').write_text('Original binary restored. No database restore performed.\n')
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raise
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finally:
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conn.close()
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if __name__ == '__main__':
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publish(*sys.argv[1:])
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