The Tor Browser: media/webrtc/trunk/build/android/pylib/fake

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.

     2 # Use of this source code is governed by a BSD-style license that can be

     3 # found in the LICENSE file.

     5 import android_commands

     6 import constants

     7 import logging

     8 import os

     9 import subprocess

    10 import time

    13 class FakeDns(object):

    14   """Wrapper class for the fake_dns tool."""

    15   _FAKE_DNS_PATH = constants.TEST_EXECUTABLE_DIR + '/fake_dns'

    17   def __init__(self, adb, build_type):

    18     """

    19       Args:

    20         adb: the AndroidCommands to use.

    21         build_type: 'Release' or 'Debug'.

    22     """

    23     self._adb = adb

    24     self._build_type = build_type

    25     self._fake_dns = None

    26     self._original_dns = None

    28   def _PushAndStartFakeDns(self):

    29     """Starts the fake_dns server that replies all name queries 127.0.0.1.

    31     Returns:

    32       subprocess instance connected to the fake_dns process on the device.

    33     """

    34     self._adb.PushIfNeeded(

    35         os.path.join(constants.CHROME_DIR, 'out', self._build_type, 'fake_dns'),

    36         FakeDns._FAKE_DNS_PATH)

    37     return subprocess.Popen(

    38         ['adb', '-s', self._adb._adb.GetSerialNumber(),

    39          'shell', '%s -D' % FakeDns._FAKE_DNS_PATH])

    41   def SetUp(self):

    42     """Configures the system to point to a DNS server that replies 127.0.0.1.

    44     This can be used in combination with the forwarder to forward all web

    45     traffic to a replay server.

    47     The TearDown() method will perform all cleanup.

    48     """

    49     self._adb.RunShellCommand('ip route add 8.8.8.0/24 via 127.0.0.1 dev lo')

    50     self._fake_dns = self._PushAndStartFakeDns()

    51     self._original_dns = self._adb.RunShellCommand('getprop net.dns1')[0]

    52     self._adb.RunShellCommand('setprop net.dns1 127.0.0.1')

    53     time.sleep(2)  # Time for server to start and the setprop to take effect.

    55   def TearDown(self):

    56     """Shuts down the fake_dns."""

    57     if self._fake_dns:

    58       if not self._original_dns or self._original_dns == '127.0.0.1':

    59         logging.warning('Bad original DNS, falling back to Google DNS.')

    60         self._original_dns = '8.8.8.8'

    61       self._adb.RunShellCommand('setprop net.dns1 %s' % self._original_dns)

    62       self._fake_dns.kill()

    63       self._adb.RunShellCommand('ip route del 8.8.8.0/24 via 127.0.0.1 dev lo')

The Tor Browser / file revision