blob: 3b057fdbf064e007b21f8454b6263027b164dd58 [file] [log] [blame]
# Copyright 2019 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import common
import json
import logging
import os
import shutil
import subprocess
import tempfile
import time
from six.moves import urllib
# Maximum amount of time to block while waiting for "pm serve" to come up.
_MANAGED_REPO_NAME = 'chrome_runner'
class AmberRepo(object):
"""Abstract interface for a repository used to serve packages to devices."""
def __init__(self, target):
self._target = target
def PublishPackage(self, package_path):
pm_tool = common.GetHostToolPathFromPlatform('pm')
[pm_tool, 'publish', '-a', '-f', package_path, '-r', self.GetPath(),
'-vt', '-v'],
def GetPath(self):
class ManagedAmberRepo(AmberRepo):
"""Creates and serves packages from an ephemeral repository."""
def __init__(self, target):
AmberRepo.__init__(self, target)
self._with_count = 0
self._amber_root = tempfile.mkdtemp()
pm_tool = common.GetHostToolPathFromPlatform('pm')
subprocess.check_call([pm_tool, 'newrepo', '-repo', self._amber_root])'Creating and serving temporary Amber root: {}.'.format(
serve_port = common.GetAvailableTcpPort()
self._pm_serve_task = subprocess.Popen(
[pm_tool, 'serve', '-d', os.path.join(self._amber_root, 'repository'),
'-l', ':%d' % serve_port, '-q'])
# Block until "pm serve" starts serving HTTP traffic at |serve_port|.
timeout = time.time() + _PM_SERVE_LIVENESS_TIMEOUT_SECS
while True:
urllib.request.urlopen('http://localhost:%d' % serve_port,
except urllib.error.URLError:'Waiting until \'pm serve\' is up...')
if time.time() >= timeout:
raise Exception('Timed out while waiting for \'pm serve\'.')
remote_port = common.ConnectPortForwardingTask(target, serve_port, 0)
self._RegisterAmberRepository(self._amber_root, remote_port)
def __enter__(self):
self._with_count += 1
return self
def __exit__(self, type, value, tb):
"""Allows the repository to delete itself when it leaves the scope of a
'with' block."""
self._with_count -= 1
if self._with_count > 0:
return'Cleaning up Amber root: ' + self._amber_root)
self._amber_root = None
self._pm_serve_task = None
def GetPath(self):
return self._amber_root
def _RegisterAmberRepository(self, tuf_repo, remote_port):
"""Configures a device to use a local TUF repository as an installation
source for packages.
|tuf_repo|: The host filesystem path to the TUF repository.
|remote_port|: The reverse-forwarded port used to connect to instance of
`pm serve` that is serving the contents of |tuf_repo|."""
# Extract the public signing key for inclusion in the config file.
root_keys = []
root_json_path = os.path.join(tuf_repo, 'repository', 'root.json')
root_json = json.load(open(root_json_path, 'r'))
for root_key_id in root_json['signed']['roles']['root']['keyids']:
'Type': root_json['signed']['keys'][root_key_id]['keytype'],
'Value': root_json['signed']['keys'][root_key_id]['keyval']['public']
# "pm serve" can automatically generate a "config.json" file at query time,
# but the file is unusable because it specifies URLs with port
# numbers that are unreachable from across the port forwarding boundary.
# So instead, we generate our own config file with the forwarded port
# numbers instead.
config_file = open(os.path.join(tuf_repo, 'repository', 'repo_config.json'),
'RepoURL': "" % remote_port,
'BlobRepoURL': "" % remote_port,
'RatePeriod': 10,
'RootKeys': root_keys,
'StatusConfig': {
'Enabled': True
'Auto': True
}, config_file)
# Register the repo.
return_code = self._target.RunCommand(
[('amberctl rm_src -n %s; ' +
'amberctl add_src -f')
% (_MANAGED_REPO_NAME, remote_port)])
if return_code != 0:
raise Exception('Error code %d when running amberctl.' % return_code)
def _UnregisterAmberRepository(self):
"""Unregisters the Amber repository."""
logging.debug('Unregistering Amber repository.')
self._target.RunCommand(['amberctl', 'rm_src', '-n', _MANAGED_REPO_NAME])
# Re-enable 'devhost' repo if it's present. This is useful for devices that
# were booted with 'fx serve'.
self._target.RunCommand(['amberctl', 'enable_src', '-n', 'devhost'],
class ExternalAmberRepo(AmberRepo):
"""Publishes packages to an Amber repository located and served externally
(ie. located under a Fuchsia build directory and served by "fx serve"."""
def __init__(self, amber_root):
self._amber_root = amber_root'Using existing Amber root: {}'.format(amber_root))'Ensure that "fx serve" is running.')
def GetPath(self):
return self._amber_root
def __enter__(self):
return self
def __exit__(self, type, value, tb):