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# Copyright 2016 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 contextlib
import logging
import os
import shutil
import subprocess
import sys
import tempfile
import time
_SRC_DIR = os.path.abspath(os.path.join(
os.path.dirname(__file__), '..', '..', '..'))
sys.path.append(os.path.join(_SRC_DIR, 'third_party', 'catapult', 'devil'))
from devil.android import device_utils
from devil.android import flag_changer
from devil.android import forwarder
from devil.android.sdk import intent
sys.path.append(os.path.join(_SRC_DIR, 'build', 'android'))
from pylib import constants
sys.path.append(os.path.join(_SRC_DIR, 'tools', 'perf'))
from chrome_telemetry_build import chromium_config
sys.path.append(chromium_config.GetTelemetryDir())
from telemetry.internal.util import webpagereplay
sys.path.append(os.path.join(_SRC_DIR, 'third_party', 'webpagereplay'))
import adb_install_cert
import certutils
import chrome_setup
import devtools_monitor
import options
OPTIONS = options.OPTIONS
class DeviceSetupException(Exception):
def __init__(self, msg):
super(DeviceSetupException, self).__init__(msg)
logging.error(msg)
def GetFirstDevice():
"""Returns the first connected device.
Raises:
DeviceSetupException if there is no such device.
"""
devices = device_utils.DeviceUtils.HealthyDevices()
if not devices:
raise DeviceSetupException('No devices found')
return devices[0]
@contextlib.contextmanager
def FlagReplacer(device, command_line_path, new_flags):
"""Replaces chrome flags in a context, restores them afterwards.
Args:
device: Device to target, from DeviceUtils. Can be None, in which case this
context manager is a no-op.
command_line_path: Full path to the command-line file.
new_flags: Flags to replace.
"""
# If we're logging requests from a local desktop chrome instance there is no
# device.
if not device:
yield
return
changer = flag_changer.FlagChanger(device, command_line_path)
changer.ReplaceFlags(new_flags)
try:
yield
finally:
changer.Restore()
@contextlib.contextmanager
def ForwardPort(device, local, remote):
"""Forwards a local port to a remote one on a device in a context."""
# If we're logging requests from a local desktop chrome instance there is no
# device.
if not device:
yield
return
device.adb.Forward(local, remote)
try:
yield
finally:
device.adb.ForwardRemove(local)
# Deprecated
def _SetUpDevice(device, package_info):
"""Enables root and closes Chrome on a device."""
device.EnableRoot()
device.KillAll(package_info.package, quiet=True)
@contextlib.contextmanager
def WprHost(device, wpr_archive_path, record=False,
network_condition_name=None,
disable_script_injection=False):
"""Launches web page replay host.
Args:
device: Android device.
wpr_archive_path: host sided WPR archive's path.
network_condition_name: Network condition name available in
chrome_setup.NETWORK_CONDITIONS.
record: Enables or disables WPR archive recording.
Returns:
Additional flags list that may be used for chromium to load web page through
the running web page replay host.
"""
assert device
if wpr_archive_path == None:
assert not record, 'WPR cannot record without a specified archive.'
assert not network_condition_name, ('WPR cannot emulate network condition' +
' without a specified archive.')
yield []
return
wpr_server_args = ['--use_closest_match']
if record:
wpr_server_args.append('--record')
if os.path.exists(wpr_archive_path):
os.remove(wpr_archive_path)
else:
assert os.path.exists(wpr_archive_path)
if network_condition_name:
condition = chrome_setup.NETWORK_CONDITIONS[network_condition_name]
if record:
logging.warning('WPR network condition is ignored when recording.')
else:
wpr_server_args.extend([
'--down', chrome_setup.BandwidthToString(condition['download']),
'--up', chrome_setup.BandwidthToString(condition['upload']),
'--delay_ms', str(condition['latency']),
'--shaping_type', 'proxy'])
if disable_script_injection:
# Remove default WPR injected scripts like deterministic.js which
# overrides Math.random.
wpr_server_args.extend(['--inject_scripts', ''])
# Deploy certification authority to the device.
temp_certificate_dir = tempfile.mkdtemp()
wpr_ca_cert_path = os.path.join(temp_certificate_dir, 'testca.pem')
certutils.write_dummy_ca_cert(*certutils.generate_dummy_ca_cert(),
cert_path=wpr_ca_cert_path)
device_cert_util = adb_install_cert.AndroidCertInstaller(
device.adb.GetDeviceSerial(), None, wpr_ca_cert_path)
device_cert_util.install_cert(overwrite_cert=True)
wpr_server_args.extend(['--should_generate_certs',
'--https_root_ca_cert_path=' + wpr_ca_cert_path])
# Set up WPR server and device forwarder.
wpr_server = webpagereplay.ReplayServer(wpr_archive_path,
'127.0.0.1', 0, 0, None, wpr_server_args)
ports = wpr_server.StartServer()[:-1]
host_http_port = ports[0]
host_https_port = ports[1]
forwarder.Forwarder.Map([(0, host_http_port), (0, host_https_port)], device)
device_http_port = forwarder.Forwarder.DevicePortForHostPort(host_http_port)
device_https_port = forwarder.Forwarder.DevicePortForHostPort(host_https_port)
try:
yield [
'--host-resolver-rules="MAP * 127.0.0.1,EXCLUDE localhost"',
'--testing-fixed-http-port={}'.format(device_http_port),
'--testing-fixed-https-port={}'.format(device_https_port)]
finally:
forwarder.Forwarder.UnmapDevicePort(device_http_port, device)
forwarder.Forwarder.UnmapDevicePort(device_https_port, device)
wpr_server.StopServer()
# Remove certification authority from the device.
device_cert_util.remove_cert()
shutil.rmtree(temp_certificate_dir)
# Deprecated
@contextlib.contextmanager
def _DevToolsConnectionOnDevice(device, flags):
"""Returns a DevToolsConnection context manager for a given device.
Args:
device: Device to connect to.
flags: ([str]) List of flags.
Returns:
A DevToolsConnection context manager.
"""
package_info = OPTIONS.ChromePackage()
command_line_path = '/data/local/chrome-command-line'
_SetUpDevice(device, package_info)
with FlagReplacer(device, command_line_path, flags):
start_intent = intent.Intent(
package=package_info.package, activity=package_info.activity,
data='about:blank')
device.StartActivity(start_intent, blocking=True)
time.sleep(2)
with ForwardPort(device, 'tcp:%d' % OPTIONS.devtools_port,
'localabstract:chrome_devtools_remote'):
yield devtools_monitor.DevToolsConnection(
OPTIONS.devtools_hostname, OPTIONS.devtools_port)
# Deprecated, use *Controller.
def DeviceConnection(device, additional_flags=None):
"""Context for starting recording on a device.
Sets up and restores any device and tracing appropriately
Args:
device: Android device, or None for a local run (in which case chrome needs
to have been started with --remote-debugging-port=XXX).
additional_flags: Additional chromium arguments.
Returns:
A context manager type which evaluates to a DevToolsConnection.
"""
new_flags = ['--disable-fre',
'--enable-test-events',
'--remote-debugging-port=%d' % OPTIONS.devtools_port]
if OPTIONS.no_sandbox:
new_flags.append('--no-sandbox')
if additional_flags != None:
new_flags.extend(additional_flags)
if device:
return _DevToolsConnectionOnDevice(device, new_flags)
else:
return chrome_setup.DevToolsConnectionForLocalBinary(new_flags)
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