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1236 lines
41 KiB
Python
1236 lines
41 KiB
Python
# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""
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Utilities for requesting information for a Gerrit server via HTTPS.
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https://gerrit-review.googlesource.com/Documentation/rest-api.html
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"""
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from __future__ import print_function
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from __future__ import unicode_literals
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import base64
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import contextlib
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import httplib2
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import json
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import logging
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import netrc
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import os
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import random
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import re
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import socket
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import stat
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import sys
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import tempfile
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import time
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from multiprocessing.pool import ThreadPool
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import auth
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import gclient_utils
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import metrics
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import metrics_utils
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import subprocess2
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from third_party import six
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from six.moves import urllib
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if sys.version_info.major == 2:
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import cookielib
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from StringIO import StringIO
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else:
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import http.cookiejar as cookielib
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from io import StringIO
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LOGGER = logging.getLogger()
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# With a starting sleep time of 12.0 seconds, x <= [1.8-2.2]x backoff, and six
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# total tries, the sleep time between the first and last tries will be ~6 min
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# (excluding time for each try).
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TRY_LIMIT = 6
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SLEEP_TIME = 12.0
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MAX_BACKOFF = 2.2
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MIN_BACKOFF = 1.8
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# Controls the transport protocol used to communicate with Gerrit.
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# This is parameterized primarily to enable GerritTestCase.
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GERRIT_PROTOCOL = 'https'
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def time_sleep(seconds):
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# Use this so that it can be mocked in tests without interfering with python
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# system machinery.
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return time.sleep(seconds)
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def time_time():
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# Use this so that it can be mocked in tests without interfering with python
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# system machinery.
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return time.time()
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def log_retry_and_sleep(seconds, attempt):
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LOGGER.info('Will retry in %d seconds (%d more times)...', seconds,
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TRY_LIMIT - attempt - 1)
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time_sleep(seconds)
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return seconds * random.uniform(MIN_BACKOFF, MAX_BACKOFF)
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class GerritError(Exception):
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"""Exception class for errors commuicating with the gerrit-on-borg service."""
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def __init__(self, http_status, message, *args, **kwargs):
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super(GerritError, self).__init__(*args, **kwargs)
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self.http_status = http_status
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self.message = '(%d) %s' % (self.http_status, message)
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def __str__(self):
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return self.message
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def _QueryString(params, first_param=None):
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"""Encodes query parameters in the key:val[+key:val...] format specified here:
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https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#list-changes
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"""
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q = [urllib.parse.quote(first_param)] if first_param else []
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q.extend(['%s:%s' % (key, val.replace(" ", "+")) for key, val in params])
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return '+'.join(q)
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class Authenticator(object):
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"""Base authenticator class for authenticator implementations to subclass."""
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def get_auth_header(self, host):
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raise NotImplementedError()
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@staticmethod
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def get():
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"""Returns: (Authenticator) The identified Authenticator to use.
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Probes the local system and its environment and identifies the
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Authenticator instance to use.
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"""
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# LUCI Context takes priority since it's normally present only on bots,
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# which then must use it.
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if LuciContextAuthenticator.is_luci():
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return LuciContextAuthenticator()
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# TODO(crbug.com/1059384): Automatically detect when running on cloudtop,
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# and use CookiesAuthenticator instead.
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if GceAuthenticator.is_gce():
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return GceAuthenticator()
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return CookiesAuthenticator()
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class CookiesAuthenticator(Authenticator):
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"""Authenticator implementation that uses ".netrc" or ".gitcookies" for token.
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Expected case for developer workstations.
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"""
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_EMPTY = object()
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def __init__(self):
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# Credentials will be loaded lazily on first use. This ensures Authenticator
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# get() can always construct an authenticator, even if something is broken.
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# This allows 'creds-check' to proceed to actually checking creds later,
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# rigorously (instead of blowing up with a cryptic error if they are wrong).
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self._netrc = self._EMPTY
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self._gitcookies = self._EMPTY
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@property
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def netrc(self):
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if self._netrc is self._EMPTY:
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self._netrc = self._get_netrc()
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return self._netrc
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@property
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def gitcookies(self):
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if self._gitcookies is self._EMPTY:
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self._gitcookies = self._get_gitcookies()
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return self._gitcookies
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@classmethod
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def get_new_password_url(cls, host):
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assert not host.startswith('http')
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# Assume *.googlesource.com pattern.
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parts = host.split('.')
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# remove -review suffix if present.
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if parts[0].endswith('-review'):
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parts[0] = parts[0][:-len('-review')]
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return 'https://%s/new-password' % ('.'.join(parts))
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@classmethod
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def get_new_password_message(cls, host):
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if host is None:
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return ('Git host for Gerrit upload is unknown. Check your remote '
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'and the branch your branch is tracking. This tool assumes '
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'that you are using a git server at *.googlesource.com.')
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url = cls.get_new_password_url(host)
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return 'You can (re)generate your credentials by visiting %s' % url
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@classmethod
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def get_netrc_path(cls):
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path = '_netrc' if sys.platform.startswith('win') else '.netrc'
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return os.path.expanduser(os.path.join('~', path))
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@classmethod
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def _get_netrc(cls):
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# Buffer the '.netrc' path. Use an empty file if it doesn't exist.
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path = cls.get_netrc_path()
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if not os.path.exists(path):
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return netrc.netrc(os.devnull)
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st = os.stat(path)
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if st.st_mode & (stat.S_IRWXG | stat.S_IRWXO):
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print(
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'WARNING: netrc file %s cannot be used because its file '
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'permissions are insecure. netrc file permissions should be '
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'600.' % path, file=sys.stderr)
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with open(path) as fd:
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content = fd.read()
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# Load the '.netrc' file. We strip comments from it because processing them
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# can trigger a bug in Windows. See crbug.com/664664.
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content = '\n'.join(l for l in content.splitlines()
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if l.strip() and not l.strip().startswith('#'))
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with tempdir() as tdir:
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netrc_path = os.path.join(tdir, 'netrc')
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with open(netrc_path, 'w') as fd:
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fd.write(content)
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os.chmod(netrc_path, (stat.S_IRUSR | stat.S_IWUSR))
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return cls._get_netrc_from_path(netrc_path)
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@classmethod
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def _get_netrc_from_path(cls, path):
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try:
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return netrc.netrc(path)
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except IOError:
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print('WARNING: Could not read netrc file %s' % path, file=sys.stderr)
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return netrc.netrc(os.devnull)
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except netrc.NetrcParseError as e:
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print('ERROR: Cannot use netrc file %s due to a parsing error: %s' %
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(path, e), file=sys.stderr)
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return netrc.netrc(os.devnull)
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@classmethod
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def get_gitcookies_path(cls):
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if os.getenv('GIT_COOKIES_PATH'):
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return os.getenv('GIT_COOKIES_PATH')
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try:
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path = subprocess2.check_output(
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['git', 'config', '--path', 'http.cookiefile'])
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return path.decode('utf-8', 'ignore').strip()
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except subprocess2.CalledProcessError:
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return os.path.expanduser(os.path.join('~', '.gitcookies'))
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@classmethod
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def _get_gitcookies(cls):
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gitcookies = {}
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path = cls.get_gitcookies_path()
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if not os.path.exists(path):
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return gitcookies
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try:
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f = gclient_utils.FileRead(path, 'rb').splitlines()
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except IOError:
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return gitcookies
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for line in f:
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try:
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fields = line.strip().split('\t')
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if line.strip().startswith('#') or len(fields) != 7:
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continue
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domain, xpath, key, value = fields[0], fields[2], fields[5], fields[6]
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if xpath == '/' and key == 'o':
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if value.startswith('git-'):
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login, secret_token = value.split('=', 1)
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gitcookies[domain] = (login, secret_token)
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else:
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gitcookies[domain] = ('', value)
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except (IndexError, ValueError, TypeError) as exc:
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LOGGER.warning(exc)
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return gitcookies
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def _get_auth_for_host(self, host):
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for domain, creds in self.gitcookies.items():
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if cookielib.domain_match(host, domain):
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return (creds[0], None, creds[1])
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return self.netrc.authenticators(host)
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def get_auth_header(self, host):
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a = self._get_auth_for_host(host)
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if a:
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if a[0]:
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secret = base64.b64encode(('%s:%s' % (a[0], a[2])).encode('utf-8'))
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return 'Basic %s' % secret.decode('utf-8')
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return 'Bearer %s' % a[2]
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return None
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def get_auth_email(self, host):
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"""Best effort parsing of email to be used for auth for the given host."""
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a = self._get_auth_for_host(host)
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if not a:
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return None
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login = a[0]
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# login typically looks like 'git-xxx.example.com'
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if not login.startswith('git-') or '.' not in login:
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return None
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username, domain = login[len('git-'):].split('.', 1)
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return '%s@%s' % (username, domain)
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# Backwards compatibility just in case somebody imports this outside of
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# depot_tools.
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NetrcAuthenticator = CookiesAuthenticator
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class GceAuthenticator(Authenticator):
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"""Authenticator implementation that uses GCE metadata service for token.
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"""
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_INFO_URL = 'http://metadata.google.internal'
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_ACQUIRE_URL = ('%s/computeMetadata/v1/instance/'
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'service-accounts/default/token' % _INFO_URL)
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_ACQUIRE_HEADERS = {"Metadata-Flavor": "Google"}
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_cache_is_gce = None
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_token_cache = None
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_token_expiration = None
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@classmethod
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def is_gce(cls):
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if os.getenv('SKIP_GCE_AUTH_FOR_GIT'):
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return False
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if cls._cache_is_gce is None:
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cls._cache_is_gce = cls._test_is_gce()
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return cls._cache_is_gce
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@classmethod
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def _test_is_gce(cls):
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# Based on https://cloud.google.com/compute/docs/metadata#runninggce
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resp, _ = cls._get(cls._INFO_URL)
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if resp is None:
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return False
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return resp.get('metadata-flavor') == 'Google'
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@staticmethod
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def _get(url, **kwargs):
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next_delay_sec = 1.0
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for i in range(TRY_LIMIT):
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p = urllib.parse.urlparse(url)
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if p.scheme not in ('http', 'https'):
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raise RuntimeError(
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"Don't know how to work with protocol '%s'" % protocol)
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try:
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resp, contents = httplib2.Http().request(url, 'GET', **kwargs)
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except (socket.error, httplib2.HttpLib2Error,
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httplib2.socks.ProxyError) as e:
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LOGGER.debug('GET [%s] raised %s', url, e)
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return None, None
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LOGGER.debug('GET [%s] #%d/%d (%d)', url, i+1, TRY_LIMIT, resp.status)
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if resp.status < 500:
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return (resp, contents)
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# Retry server error status codes.
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LOGGER.warn('Encountered server error')
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if TRY_LIMIT - i > 1:
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next_delay_sec = log_retry_and_sleep(next_delay_sec, i)
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return None, None
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@classmethod
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def _get_token_dict(cls):
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# If cached token is valid for at least 25 seconds, return it.
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if cls._token_cache and time_time() + 25 < cls._token_expiration:
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return cls._token_cache
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resp, contents = cls._get(cls._ACQUIRE_URL, headers=cls._ACQUIRE_HEADERS)
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if resp is None or resp.status != 200:
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return None
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cls._token_cache = json.loads(contents)
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cls._token_expiration = cls._token_cache['expires_in'] + time_time()
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return cls._token_cache
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def get_auth_header(self, _host):
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token_dict = self._get_token_dict()
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if not token_dict:
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return None
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return '%(token_type)s %(access_token)s' % token_dict
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class LuciContextAuthenticator(Authenticator):
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"""Authenticator implementation that uses LUCI_CONTEXT ambient local auth.
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"""
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@staticmethod
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def is_luci():
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return auth.has_luci_context_local_auth()
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def __init__(self):
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self._authenticator = auth.Authenticator(
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' '.join([auth.OAUTH_SCOPE_EMAIL, auth.OAUTH_SCOPE_GERRIT]))
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def get_auth_header(self, _host):
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return 'Bearer %s' % self._authenticator.get_access_token().token
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def CreateHttpConn(host,
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path,
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reqtype='GET',
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headers=None,
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body=None,
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timeout=300):
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"""Opens an HTTPS connection to a Gerrit service, and sends a request."""
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headers = headers or {}
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bare_host = host.partition(':')[0]
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a = Authenticator.get()
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# TODO(crbug.com/1059384): Automatically detect when running on cloudtop.
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if isinstance(a, GceAuthenticator):
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print('If you\'re on a cloudtop instance, export '
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'SKIP_GCE_AUTH_FOR_GIT=1 in your env.')
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a = a.get_auth_header(bare_host)
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if a:
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headers.setdefault('Authorization', a)
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else:
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LOGGER.debug('No authorization found for %s.' % bare_host)
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url = path
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if not url.startswith('/'):
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url = '/' + url
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if 'Authorization' in headers and not url.startswith('/a/'):
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url = '/a%s' % url
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if body:
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body = json.dumps(body, sort_keys=True)
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headers.setdefault('Content-Type', 'application/json')
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if LOGGER.isEnabledFor(logging.DEBUG):
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LOGGER.debug('%s %s://%s%s' % (reqtype, GERRIT_PROTOCOL, host, url))
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for key, val in headers.items():
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if key == 'Authorization':
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val = 'HIDDEN'
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LOGGER.debug('%s: %s' % (key, val))
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if body:
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LOGGER.debug(body)
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conn = httplib2.Http(timeout=timeout)
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# HACK: httplib2.Http has no such attribute; we store req_host here for later
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# use in ReadHttpResponse.
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conn.req_host = host
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conn.req_params = {
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'uri': urllib.parse.urljoin('%s://%s' % (GERRIT_PROTOCOL, host), url),
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'method': reqtype,
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'headers': headers,
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'body': body,
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}
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return conn
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|
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def ReadHttpResponse(conn, accept_statuses=frozenset([200])):
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"""Reads an HTTP response from a connection into a string buffer.
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|
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Args:
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conn: An Http object created by CreateHttpConn above.
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accept_statuses: Treat any of these statuses as success. Default: [200]
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Common additions include 204, 400, and 404.
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Returns: A string buffer containing the connection's reply.
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"""
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sleep_time = SLEEP_TIME
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for idx in range(TRY_LIMIT):
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before_response = time.time()
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try:
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response, contents = conn.request(**conn.req_params)
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except socket.timeout:
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if idx < TRY_LIMIT - 1:
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sleep_time = log_retry_and_sleep(sleep_time, idx)
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continue
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raise
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contents = contents.decode('utf-8', 'replace')
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response_time = time.time() - before_response
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metrics.collector.add_repeated(
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'http_requests',
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metrics_utils.extract_http_metrics(
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conn.req_params['uri'], conn.req_params['method'], response.status,
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response_time))
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# If response.status is an accepted status,
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# or response.status < 500 then the result is final; break retry loop.
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# If the response is 404/409 it might be because of replication lag,
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# so keep trying anyway. If it is 429, it is generally ok to retry after
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# a backoff.
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|
if (response.status in accept_statuses
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or response.status < 500 and response.status not in [404, 409, 429]):
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LOGGER.debug('got response %d for %s %s', response.status,
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conn.req_params['method'], conn.req_params['uri'])
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# If 404 was in accept_statuses, then it's expected that the file might
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# not exist, so don't return the gitiles error page because that's not
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# the "content" that was actually requested.
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if response.status == 404:
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contents = ''
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break
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|
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# A status >=500 is assumed to be a possible transient error; retry.
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http_version = 'HTTP/%s' % ('1.1' if response.version == 11 else '1.0')
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LOGGER.warn('A transient error occurred while querying %s:\n'
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'%s %s %s\n'
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'%s %d %s\n'
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'%s',
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conn.req_host, conn.req_params['method'],
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conn.req_params['uri'],
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http_version, http_version, response.status, response.reason,
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contents)
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if idx < TRY_LIMIT - 1:
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sleep_time = log_retry_and_sleep(sleep_time, idx)
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# end of retries loop
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|
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if response.status in accept_statuses:
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return StringIO(contents)
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|
|
if response.status in (302, 401, 403):
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|
www_authenticate = response.get('www-authenticate')
|
|
if not www_authenticate:
|
|
print('Your Gerrit credentials might be misconfigured.')
|
|
else:
|
|
auth_match = re.search('realm="([^"]+)"', www_authenticate, re.I)
|
|
host = auth_match.group(1) if auth_match else conn.req_host
|
|
print('Authentication failed. Please make sure your .gitcookies '
|
|
'file has credentials for %s.' % host)
|
|
print('Try:\n git cl creds-check')
|
|
|
|
reason = '%s: %s' % (response.reason, contents)
|
|
raise GerritError(response.status, reason)
|
|
|
|
|
|
def ReadHttpJsonResponse(conn, accept_statuses=frozenset([200])):
|
|
"""Parses an https response as json."""
|
|
fh = ReadHttpResponse(conn, accept_statuses)
|
|
# The first line of the response should always be: )]}'
|
|
s = fh.readline()
|
|
if s and s.rstrip() != ")]}'":
|
|
raise GerritError(200, 'Unexpected json output: %s' % s)
|
|
s = fh.read()
|
|
if not s:
|
|
return None
|
|
return json.loads(s)
|
|
|
|
|
|
def CallGerritApi(host, path, **kwargs):
|
|
"""Helper for calling a Gerrit API that returns a JSON response."""
|
|
conn_kwargs = {}
|
|
conn_kwargs.update(
|
|
(k, kwargs[k]) for k in ['reqtype', 'headers', 'body'] if k in kwargs)
|
|
conn = CreateHttpConn(host, path, **conn_kwargs)
|
|
read_kwargs = {}
|
|
read_kwargs.update((k, kwargs[k]) for k in ['accept_statuses'] if k in kwargs)
|
|
return ReadHttpJsonResponse(conn, **read_kwargs)
|
|
|
|
|
|
def QueryChanges(host, params, first_param=None, limit=None, o_params=None,
|
|
start=None):
|
|
"""
|
|
Queries a gerrit-on-borg server for changes matching query terms.
|
|
|
|
Args:
|
|
params: A list of key:value pairs for search parameters, as documented
|
|
here (e.g. ('is', 'owner') for a parameter 'is:owner'):
|
|
https://gerrit-review.googlesource.com/Documentation/user-search.html#search-operators
|
|
first_param: A change identifier
|
|
limit: Maximum number of results to return.
|
|
start: how many changes to skip (starting with the most recent)
|
|
o_params: A list of additional output specifiers, as documented here:
|
|
https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#list-changes
|
|
|
|
Returns:
|
|
A list of json-decoded query results.
|
|
"""
|
|
# Note that no attempt is made to escape special characters; YMMV.
|
|
if not params and not first_param:
|
|
raise RuntimeError('QueryChanges requires search parameters')
|
|
path = 'changes/?q=%s' % _QueryString(params, first_param)
|
|
if start:
|
|
path = '%s&start=%s' % (path, start)
|
|
if limit:
|
|
path = '%s&n=%d' % (path, limit)
|
|
if o_params:
|
|
path = '%s&%s' % (path, '&'.join(['o=%s' % p for p in o_params]))
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path, timeout=30.0))
|
|
|
|
|
|
def GenerateAllChanges(host, params, first_param=None, limit=500,
|
|
o_params=None, start=None):
|
|
"""Queries a gerrit-on-borg server for all the changes matching the query
|
|
terms.
|
|
|
|
WARNING: this is unreliable if a change matching the query is modified while
|
|
this function is being called.
|
|
|
|
A single query to gerrit-on-borg is limited on the number of results by the
|
|
limit parameter on the request (see QueryChanges) and the server maximum
|
|
limit.
|
|
|
|
Args:
|
|
params, first_param: Refer to QueryChanges().
|
|
limit: Maximum number of requested changes per query.
|
|
o_params: Refer to QueryChanges().
|
|
start: Refer to QueryChanges().
|
|
|
|
Returns:
|
|
A generator object to the list of returned changes.
|
|
"""
|
|
already_returned = set()
|
|
|
|
def at_most_once(cls):
|
|
for cl in cls:
|
|
if cl['_number'] not in already_returned:
|
|
already_returned.add(cl['_number'])
|
|
yield cl
|
|
|
|
start = start or 0
|
|
cur_start = start
|
|
more_changes = True
|
|
|
|
while more_changes:
|
|
# This will fetch changes[start..start+limit] sorted by most recently
|
|
# updated. Since the rank of any change in this list can be changed any time
|
|
# (say user posting comment), subsequent calls may overalp like this:
|
|
# > initial order ABCDEFGH
|
|
# query[0..3] => ABC
|
|
# > E gets updated. New order: EABCDFGH
|
|
# query[3..6] => CDF # C is a dup
|
|
# query[6..9] => GH # E is missed.
|
|
page = QueryChanges(host, params, first_param, limit, o_params,
|
|
cur_start)
|
|
for cl in at_most_once(page):
|
|
yield cl
|
|
|
|
more_changes = [cl for cl in page if '_more_changes' in cl]
|
|
if len(more_changes) > 1:
|
|
raise GerritError(
|
|
200,
|
|
'Received %d changes with a _more_changes attribute set but should '
|
|
'receive at most one.' % len(more_changes))
|
|
if more_changes:
|
|
cur_start += len(page)
|
|
|
|
# If we paged through, query again the first page which in most circumstances
|
|
# will fetch all changes that were modified while this function was run.
|
|
if start != cur_start:
|
|
page = QueryChanges(host, params, first_param, limit, o_params, start)
|
|
for cl in at_most_once(page):
|
|
yield cl
|
|
|
|
|
|
def MultiQueryChanges(host, params, change_list, limit=None, o_params=None,
|
|
start=None):
|
|
"""Initiate a query composed of multiple sets of query parameters."""
|
|
if not change_list:
|
|
raise RuntimeError(
|
|
"MultiQueryChanges requires a list of change numbers/id's")
|
|
q = ['q=%s' % '+OR+'.join([urllib.parse.quote(str(x)) for x in change_list])]
|
|
if params:
|
|
q.append(_QueryString(params))
|
|
if limit:
|
|
q.append('n=%d' % limit)
|
|
if start:
|
|
q.append('S=%s' % start)
|
|
if o_params:
|
|
q.extend(['o=%s' % p for p in o_params])
|
|
path = 'changes/?%s' % '&'.join(q)
|
|
try:
|
|
result = ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
except GerritError as e:
|
|
msg = '%s:\n%s' % (e.message, path)
|
|
raise GerritError(e.http_status, msg)
|
|
return result
|
|
|
|
|
|
def GetGerritFetchUrl(host):
|
|
"""Given a Gerrit host name returns URL of a Gerrit instance to fetch from."""
|
|
return '%s://%s/' % (GERRIT_PROTOCOL, host)
|
|
|
|
|
|
def GetCodeReviewTbrScore(host, project):
|
|
"""Given a Gerrit host name and project, return the Code-Review score for TBR.
|
|
"""
|
|
conn = CreateHttpConn(
|
|
host, '/projects/%s' % urllib.parse.quote(project, ''))
|
|
project = ReadHttpJsonResponse(conn)
|
|
if ('labels' not in project
|
|
or 'Code-Review' not in project['labels']
|
|
or 'values' not in project['labels']['Code-Review']):
|
|
return 1
|
|
return max([int(x) for x in project['labels']['Code-Review']['values']])
|
|
|
|
|
|
def GetChangePageUrl(host, change_number):
|
|
"""Given a Gerrit host name and change number, returns change page URL."""
|
|
return '%s://%s/#/c/%d/' % (GERRIT_PROTOCOL, host, change_number)
|
|
|
|
|
|
def GetChangeUrl(host, change):
|
|
"""Given a Gerrit host name and change ID, returns a URL for the change."""
|
|
return '%s://%s/a/changes/%s' % (GERRIT_PROTOCOL, host, change)
|
|
|
|
|
|
def GetChange(host, change):
|
|
"""Queries a Gerrit server for information about a single change."""
|
|
path = 'changes/%s' % change
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
|
|
|
|
def GetChangeDetail(host, change, o_params=None):
|
|
"""Queries a Gerrit server for extended information about a single change."""
|
|
path = 'changes/%s/detail' % change
|
|
if o_params:
|
|
path += '?%s' % '&'.join(['o=%s' % p for p in o_params])
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
|
|
|
|
def GetChangeCommit(host, change, revision='current'):
|
|
"""Query a Gerrit server for a revision associated with a change."""
|
|
path = 'changes/%s/revisions/%s/commit?links' % (change, revision)
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
|
|
|
|
def GetChangeCurrentRevision(host, change):
|
|
"""Get information about the latest revision for a given change."""
|
|
return QueryChanges(host, [], change, o_params=('CURRENT_REVISION',))
|
|
|
|
|
|
def GetChangeRevisions(host, change):
|
|
"""Gets information about all revisions associated with a change."""
|
|
return QueryChanges(host, [], change, o_params=('ALL_REVISIONS',))
|
|
|
|
|
|
def GetChangeReview(host, change, revision=None):
|
|
"""Gets the current review information for a change."""
|
|
if not revision:
|
|
jmsg = GetChangeRevisions(host, change)
|
|
if not jmsg:
|
|
return None
|
|
|
|
if len(jmsg) > 1:
|
|
raise GerritError(200, 'Multiple changes found for ChangeId %s.' % change)
|
|
revision = jmsg[0]['current_revision']
|
|
path = 'changes/%s/revisions/%s/review'
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
|
|
|
|
def GetChangeComments(host, change):
|
|
"""Get the line- and file-level comments on a change."""
|
|
path = 'changes/%s/comments' % change
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
|
|
|
|
def GetChangeRobotComments(host, change):
|
|
"""Gets the line- and file-level robot comments on a change."""
|
|
path = 'changes/%s/robotcomments' % change
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
|
|
|
|
def GetRelatedChanges(host, change, revision='current'):
|
|
"""Gets the related changes for a given change and revision."""
|
|
path = 'changes/%s/revisions/%s/related' % (change, revision)
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
|
|
|
|
def AbandonChange(host, change, msg=''):
|
|
"""Abandons a Gerrit change."""
|
|
path = 'changes/%s/abandon' % change
|
|
body = {'message': msg} if msg else {}
|
|
conn = CreateHttpConn(host, path, reqtype='POST', body=body)
|
|
return ReadHttpJsonResponse(conn)
|
|
|
|
|
|
def MoveChange(host, change, destination_branch):
|
|
"""Move a Gerrit change to different destination branch."""
|
|
path = 'changes/%s/move' % change
|
|
body = {'destination_branch': destination_branch,
|
|
'keep_all_votes': True}
|
|
conn = CreateHttpConn(host, path, reqtype='POST', body=body)
|
|
return ReadHttpJsonResponse(conn)
|
|
|
|
|
|
|
|
def RestoreChange(host, change, msg=''):
|
|
"""Restores a previously abandoned change."""
|
|
path = 'changes/%s/restore' % change
|
|
body = {'message': msg} if msg else {}
|
|
conn = CreateHttpConn(host, path, reqtype='POST', body=body)
|
|
return ReadHttpJsonResponse(conn)
|
|
|
|
|
|
def SubmitChange(host, change):
|
|
"""Submits a Gerrit change via Gerrit."""
|
|
path = 'changes/%s/submit' % change
|
|
conn = CreateHttpConn(host, path, reqtype='POST')
|
|
return ReadHttpJsonResponse(conn)
|
|
|
|
|
|
def GetChangesSubmittedTogether(host, change):
|
|
"""Get all changes submitted with the given one."""
|
|
path = 'changes/%s/submitted_together?o=NON_VISIBLE_CHANGES' % change
|
|
conn = CreateHttpConn(host, path, reqtype='GET')
|
|
return ReadHttpJsonResponse(conn)
|
|
|
|
|
|
def PublishChangeEdit(host, change, notify=True):
|
|
"""Publish a Gerrit change edit."""
|
|
path = 'changes/%s/edit:publish' % change
|
|
body = {'notify': 'ALL' if notify else 'NONE'}
|
|
conn = CreateHttpConn(host, path, reqtype='POST', body=body)
|
|
return ReadHttpJsonResponse(conn, accept_statuses=(204, ))
|
|
|
|
|
|
def ChangeEdit(host, change, path, data):
|
|
"""Puts content of a file into a change edit."""
|
|
path = 'changes/%s/edit/%s' % (change, urllib.parse.quote(path, ''))
|
|
body = {
|
|
'binary_content':
|
|
'data:text/plain;base64,%s' %
|
|
base64.b64encode(data.encode('utf-8')).decode('utf-8')
|
|
}
|
|
conn = CreateHttpConn(host, path, reqtype='PUT', body=body)
|
|
return ReadHttpJsonResponse(conn, accept_statuses=(204, 409))
|
|
|
|
|
|
def SetChangeEditMessage(host, change, message):
|
|
"""Sets the commit message of a change edit."""
|
|
path = 'changes/%s/edit:message' % change
|
|
body = {'message': message}
|
|
conn = CreateHttpConn(host, path, reqtype='PUT', body=body)
|
|
return ReadHttpJsonResponse(conn, accept_statuses=(204, 409))
|
|
|
|
|
|
def HasPendingChangeEdit(host, change):
|
|
conn = CreateHttpConn(host, 'changes/%s/edit' % change)
|
|
try:
|
|
ReadHttpResponse(conn)
|
|
except GerritError as e:
|
|
# 204 No Content means no pending change.
|
|
if e.http_status == 204:
|
|
return False
|
|
raise
|
|
return True
|
|
|
|
|
|
def DeletePendingChangeEdit(host, change):
|
|
conn = CreateHttpConn(host, 'changes/%s/edit' % change, reqtype='DELETE')
|
|
# On success, Gerrit returns status 204; if the edit was already deleted it
|
|
# returns 404. Anything else is an error.
|
|
ReadHttpResponse(conn, accept_statuses=[204, 404])
|
|
|
|
|
|
def CherryPick(host, change, destination, revision='current'):
|
|
"""Create a cherry-pick commit from the given change, onto the given
|
|
destination.
|
|
"""
|
|
path = 'changes/%s/revisions/%s/cherrypick' % (change, revision)
|
|
body = {'destination': destination}
|
|
conn = CreateHttpConn(host, path, reqtype='POST', body=body)
|
|
return ReadHttpJsonResponse(conn)
|
|
|
|
|
|
def GetFileContents(host, change, path):
|
|
"""Get the contents of a file with the given path in the given revision.
|
|
|
|
Returns:
|
|
A bytes object with the file's contents.
|
|
"""
|
|
path = 'changes/%s/revisions/current/files/%s/content' % (
|
|
change, urllib.parse.quote(path, ''))
|
|
conn = CreateHttpConn(host, path, reqtype='GET')
|
|
return base64.b64decode(ReadHttpResponse(conn).read())
|
|
|
|
|
|
def SetCommitMessage(host, change, description, notify='ALL'):
|
|
"""Updates a commit message."""
|
|
assert notify in ('ALL', 'NONE')
|
|
path = 'changes/%s/message' % change
|
|
body = {'message': description, 'notify': notify}
|
|
conn = CreateHttpConn(host, path, reqtype='PUT', body=body)
|
|
try:
|
|
ReadHttpResponse(conn, accept_statuses=[200, 204])
|
|
except GerritError as e:
|
|
raise GerritError(
|
|
e.http_status,
|
|
'Received unexpected http status while editing message '
|
|
'in change %s' % change)
|
|
|
|
|
|
def GetCommitIncludedIn(host, project, commit):
|
|
"""Retrieves the branches and tags for a given commit.
|
|
|
|
https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#get-included-in
|
|
|
|
Returns:
|
|
A JSON object with keys of 'branches' and 'tags'.
|
|
"""
|
|
path = 'projects/%s/commits/%s/in' % (urllib.parse.quote(project, ''), commit)
|
|
conn = CreateHttpConn(host, path, reqtype='GET')
|
|
return ReadHttpJsonResponse(conn, accept_statuses=[200])
|
|
|
|
|
|
def IsCodeOwnersEnabledOnHost(host):
|
|
"""Check if the code-owners plugin is enabled for the host."""
|
|
path = 'config/server/capabilities'
|
|
capabilities = ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
return 'code-owners-checkCodeOwner' in capabilities
|
|
|
|
|
|
def IsCodeOwnersEnabledOnRepo(host, repo):
|
|
"""Check if the code-owners plugin is enabled for the repo."""
|
|
repo = PercentEncodeForGitRef(repo)
|
|
path = '/projects/%s/code_owners.project_config' % repo
|
|
config = ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
return not config['status'].get('disabled', False)
|
|
|
|
|
|
def GetOwnersForFile(host,
|
|
project,
|
|
branch,
|
|
path,
|
|
limit=100,
|
|
resolve_all_users=True,
|
|
highest_score_only=False,
|
|
seed=None,
|
|
o_params=('DETAILS',)):
|
|
"""Gets information about owners attached to a file."""
|
|
path = 'projects/%s/branches/%s/code_owners/%s' % (
|
|
urllib.parse.quote(project, ''),
|
|
urllib.parse.quote(branch, ''),
|
|
urllib.parse.quote(path, ''))
|
|
q = ['resolve-all-users=%s' % json.dumps(resolve_all_users)]
|
|
if highest_score_only:
|
|
q.append('highest-score-only=%s' % json.dumps(highest_score_only))
|
|
if seed:
|
|
q.append('seed=%d' % seed)
|
|
if limit:
|
|
q.append('n=%d' % limit)
|
|
if o_params:
|
|
q.extend(['o=%s' % p for p in o_params])
|
|
if q:
|
|
path = '%s?%s' % (path, '&'.join(q))
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
|
|
|
|
def GetReviewers(host, change):
|
|
"""Gets information about all reviewers attached to a change."""
|
|
path = 'changes/%s/reviewers' % change
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
|
|
|
|
def GetReview(host, change, revision):
|
|
"""Gets review information about a specific revision of a change."""
|
|
path = 'changes/%s/revisions/%s/review' % (change, revision)
|
|
return ReadHttpJsonResponse(CreateHttpConn(host, path))
|
|
|
|
|
|
def AddReviewers(host, change, reviewers=None, ccs=None, notify=True,
|
|
accept_statuses=frozenset([200, 400, 422])):
|
|
"""Add reviewers to a change."""
|
|
if not reviewers and not ccs:
|
|
return None
|
|
if not change:
|
|
return None
|
|
reviewers = frozenset(reviewers or [])
|
|
ccs = frozenset(ccs or [])
|
|
path = 'changes/%s/revisions/current/review' % change
|
|
|
|
body = {
|
|
'drafts': 'KEEP',
|
|
'reviewers': [],
|
|
'notify': 'ALL' if notify else 'NONE',
|
|
}
|
|
for r in sorted(reviewers | ccs):
|
|
state = 'REVIEWER' if r in reviewers else 'CC'
|
|
body['reviewers'].append({
|
|
'reviewer': r,
|
|
'state': state,
|
|
'notify': 'NONE', # We handled `notify` argument above.
|
|
})
|
|
|
|
conn = CreateHttpConn(host, path, reqtype='POST', body=body)
|
|
# Gerrit will return 400 if one or more of the requested reviewers are
|
|
# unprocessable. We read the response object to see which were rejected,
|
|
# warn about them, and retry with the remainder.
|
|
resp = ReadHttpJsonResponse(conn, accept_statuses=accept_statuses)
|
|
|
|
errored = set()
|
|
for result in resp.get('reviewers', {}).values():
|
|
r = result.get('input')
|
|
state = 'REVIEWER' if r in reviewers else 'CC'
|
|
if result.get('error'):
|
|
errored.add(r)
|
|
LOGGER.warn('Note: "%s" not added as a %s' % (r, state.lower()))
|
|
if errored:
|
|
# Try again, adding only those that didn't fail, and only accepting 200.
|
|
AddReviewers(host, change, reviewers=(reviewers-errored),
|
|
ccs=(ccs-errored), notify=notify, accept_statuses=[200])
|
|
|
|
|
|
def SetReview(host, change, msg=None, labels=None, notify=None, ready=None):
|
|
"""Sets labels and/or adds a message to a code review."""
|
|
if not msg and not labels:
|
|
return
|
|
path = 'changes/%s/revisions/current/review' % change
|
|
body = {'drafts': 'KEEP'}
|
|
if msg:
|
|
body['message'] = msg
|
|
if labels:
|
|
body['labels'] = labels
|
|
if notify is not None:
|
|
body['notify'] = 'ALL' if notify else 'NONE'
|
|
if ready:
|
|
body['ready'] = True
|
|
conn = CreateHttpConn(host, path, reqtype='POST', body=body)
|
|
response = ReadHttpJsonResponse(conn)
|
|
if labels:
|
|
for key, val in labels.items():
|
|
if ('labels' not in response or key not in response['labels'] or
|
|
int(response['labels'][key] != int(val))):
|
|
raise GerritError(200, 'Unable to set "%s" label on change %s.' % (
|
|
key, change))
|
|
return response
|
|
|
|
def ResetReviewLabels(host, change, label, value='0', message=None,
|
|
notify=None):
|
|
"""Resets the value of a given label for all reviewers on a change."""
|
|
# This is tricky, because we want to work on the "current revision", but
|
|
# there's always the risk that "current revision" will change in between
|
|
# API calls. So, we check "current revision" at the beginning and end; if
|
|
# it has changed, raise an exception.
|
|
jmsg = GetChangeCurrentRevision(host, change)
|
|
if not jmsg:
|
|
raise GerritError(
|
|
200, 'Could not get review information for change "%s"' % change)
|
|
value = str(value)
|
|
revision = jmsg[0]['current_revision']
|
|
path = 'changes/%s/revisions/%s/review' % (change, revision)
|
|
message = message or (
|
|
'%s label set to %s programmatically.' % (label, value))
|
|
jmsg = GetReview(host, change, revision)
|
|
if not jmsg:
|
|
raise GerritError(200, 'Could not get review information for revision %s '
|
|
'of change %s' % (revision, change))
|
|
for review in jmsg.get('labels', {}).get(label, {}).get('all', []):
|
|
if str(review.get('value', value)) != value:
|
|
body = {
|
|
'drafts': 'KEEP',
|
|
'message': message,
|
|
'labels': {label: value},
|
|
'on_behalf_of': review['_account_id'],
|
|
}
|
|
if notify:
|
|
body['notify'] = notify
|
|
conn = CreateHttpConn(
|
|
host, path, reqtype='POST', body=body)
|
|
response = ReadHttpJsonResponse(conn)
|
|
if str(response['labels'][label]) != value:
|
|
username = review.get('email', jmsg.get('name', ''))
|
|
raise GerritError(200, 'Unable to set %s label for user "%s"'
|
|
' on change %s.' % (label, username, change))
|
|
jmsg = GetChangeCurrentRevision(host, change)
|
|
if not jmsg:
|
|
raise GerritError(
|
|
200, 'Could not get review information for change "%s"' % change)
|
|
|
|
if jmsg[0]['current_revision'] != revision:
|
|
raise GerritError(200, 'While resetting labels on change "%s", '
|
|
'a new patchset was uploaded.' % change)
|
|
|
|
|
|
def CreateChange(host, project, branch='main', subject='', params=()):
|
|
"""
|
|
Creates a new change.
|
|
|
|
Args:
|
|
params: A list of additional ChangeInput specifiers, as documented here:
|
|
(e.g. ('is_private', 'true') to mark the change private.
|
|
https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#change-input
|
|
|
|
Returns:
|
|
ChangeInfo for the new change.
|
|
"""
|
|
path = 'changes/'
|
|
body = {'project': project, 'branch': branch, 'subject': subject}
|
|
body.update(dict(params))
|
|
for key in 'project', 'branch', 'subject':
|
|
if not body[key]:
|
|
raise GerritError(200, '%s is required' % key.title())
|
|
|
|
conn = CreateHttpConn(host, path, reqtype='POST', body=body)
|
|
return ReadHttpJsonResponse(conn, accept_statuses=[201])
|
|
|
|
|
|
def CreateGerritBranch(host, project, branch, commit):
|
|
"""Creates a new branch from given project and commit
|
|
|
|
https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#create-branch
|
|
|
|
Returns:
|
|
A JSON object with 'ref' key.
|
|
"""
|
|
path = 'projects/%s/branches/%s' % (project, branch)
|
|
body = {'revision': commit}
|
|
conn = CreateHttpConn(host, path, reqtype='PUT', body=body)
|
|
response = ReadHttpJsonResponse(conn, accept_statuses=[201, 409])
|
|
if response:
|
|
return response
|
|
raise GerritError(200, 'Unable to create gerrit branch')
|
|
|
|
|
|
def CreateGerritTag(host, project, tag, commit):
|
|
"""Creates a new tag at the given commit.
|
|
|
|
https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#create-tag
|
|
|
|
Returns:
|
|
A JSON object with 'ref' key.
|
|
"""
|
|
path = 'projects/%s/tags/%s' % (project, tag)
|
|
body = {'revision': commit}
|
|
conn = CreateHttpConn(host, path, reqtype='PUT', body=body)
|
|
response = ReadHttpJsonResponse(conn, accept_statuses=[201])
|
|
if response:
|
|
return response
|
|
raise GerritError(200, 'Unable to create gerrit tag')
|
|
|
|
|
|
def GetHead(host, project):
|
|
"""Retrieves current HEAD of Gerrit project
|
|
|
|
https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#get-head
|
|
|
|
Returns:
|
|
A JSON object with 'ref' key.
|
|
"""
|
|
path = 'projects/%s/HEAD' % (project)
|
|
conn = CreateHttpConn(host, path, reqtype='GET')
|
|
response = ReadHttpJsonResponse(conn, accept_statuses=[200])
|
|
if response:
|
|
return response
|
|
raise GerritError(200, 'Unable to update gerrit HEAD')
|
|
|
|
|
|
def UpdateHead(host, project, branch):
|
|
"""Updates Gerrit HEAD to point to branch
|
|
|
|
https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#set-head
|
|
|
|
Returns:
|
|
A JSON object with 'ref' key.
|
|
"""
|
|
path = 'projects/%s/HEAD' % (project)
|
|
body = {'ref': branch}
|
|
conn = CreateHttpConn(host, path, reqtype='PUT', body=body)
|
|
response = ReadHttpJsonResponse(conn, accept_statuses=[200])
|
|
if response:
|
|
return response
|
|
raise GerritError(200, 'Unable to update gerrit HEAD')
|
|
|
|
|
|
def GetGerritBranch(host, project, branch):
|
|
"""Gets a branch info from given project and branch name.
|
|
|
|
See:
|
|
https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#get-branch
|
|
|
|
Returns:
|
|
A JSON object with 'revision' key if the branch exists, otherwise None.
|
|
"""
|
|
path = 'projects/%s/branches/%s' % (project, branch)
|
|
conn = CreateHttpConn(host, path, reqtype='GET')
|
|
return ReadHttpJsonResponse(conn, accept_statuses=[200, 404])
|
|
|
|
|
|
def GetProjectHead(host, project):
|
|
conn = CreateHttpConn(host,
|
|
'/projects/%s/HEAD' % urllib.parse.quote(project, ''))
|
|
return ReadHttpJsonResponse(conn, accept_statuses=[200])
|
|
|
|
|
|
def GetAccountDetails(host, account_id='self'):
|
|
"""Returns details of the account.
|
|
|
|
If account_id is not given, uses magic value 'self' which corresponds to
|
|
whichever account user is authenticating as.
|
|
|
|
Documentation:
|
|
https://gerrit-review.googlesource.com/Documentation/rest-api-accounts.html#get-account
|
|
|
|
Returns None if account is not found (i.e., Gerrit returned 404).
|
|
"""
|
|
conn = CreateHttpConn(host, '/accounts/%s' % account_id)
|
|
return ReadHttpJsonResponse(conn, accept_statuses=[200, 404])
|
|
|
|
|
|
def ValidAccounts(host, accounts, max_threads=10):
|
|
"""Returns a mapping from valid account to its details.
|
|
|
|
Invalid accounts, either not existing or without unique match,
|
|
are not present as returned dictionary keys.
|
|
"""
|
|
assert not isinstance(accounts, str), type(accounts)
|
|
accounts = list(set(accounts))
|
|
if not accounts:
|
|
return {}
|
|
|
|
def get_one(account):
|
|
try:
|
|
return account, GetAccountDetails(host, account)
|
|
except GerritError:
|
|
return None, None
|
|
|
|
valid = {}
|
|
with contextlib.closing(ThreadPool(min(max_threads, len(accounts)))) as pool:
|
|
for account, details in pool.map(get_one, accounts):
|
|
if account and details:
|
|
valid[account] = details
|
|
return valid
|
|
|
|
|
|
def PercentEncodeForGitRef(original):
|
|
"""Applies percent-encoding for strings sent to Gerrit via git ref metadata.
|
|
|
|
The encoding used is based on but stricter than URL encoding (Section 2.1 of
|
|
RFC 3986). The only non-escaped characters are alphanumerics, and 'SPACE'
|
|
(U+0020) can be represented as 'LOW LINE' (U+005F) or 'PLUS SIGN' (U+002B).
|
|
|
|
For more information, see the Gerrit docs here:
|
|
|
|
https://gerrit-review.googlesource.com/Documentation/user-upload.html#message
|
|
"""
|
|
safe = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 '
|
|
encoded = ''.join(c if c in safe else '%%%02X' % ord(c) for c in original)
|
|
|
|
# Spaces are not allowed in git refs; gerrit will interpret either '_' or
|
|
# '+' (or '%20') as space. Use '_' since that has been supported the longest.
|
|
return encoded.replace(' ', '_')
|
|
|
|
|
|
@contextlib.contextmanager
|
|
def tempdir():
|
|
tdir = None
|
|
try:
|
|
tdir = tempfile.mkdtemp(suffix='gerrit_util')
|
|
yield tdir
|
|
finally:
|
|
if tdir:
|
|
gclient_utils.rmtree(tdir)
|
|
|
|
|
|
def ChangeIdentifier(project, change_number):
|
|
"""Returns change identifier "project~number" suitable for |change| arg of
|
|
this module API.
|
|
|
|
Such format is allows for more efficient Gerrit routing of HTTP requests,
|
|
comparing to specifying just change_number.
|
|
"""
|
|
assert int(change_number)
|
|
return '%s~%s' % (urllib.parse.quote(project, ''), change_number)
|