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. 4 5 """Mock pref pane for testing purpose on Mac.""" 6 7 import Foundation 8 import os 9 import signal 10 import subprocess 11 import sys 12 import tempfile 13 import time 14 15 16 class MockPrefPane(object): 17 """Mock Pref Pane to enable/disable/changepin without system prompt. 18 19 This only applies to Mac. 20 """ 21 22 def __init__(self): 23 self._service_name = 'org.chromium.chromoting' 24 self._real_user_id = os.getuid() 25 self._config_file = os.path.join(tempfile.gettempdir(), 26 '%s.json' % self._service_name) 27 self._tool_script = '/Library/PrivilegedHelperTools/%s.me2me.sh' % \ 28 self._service_name 29 30 def _GetJobPid(self): 31 """Gets the org.chromium.chromoting job id.""" 32 process = subprocess.Popen(['launchctl', 'list'], stdout=subprocess.PIPE) 33 pid = None 34 for line in process.stdout: 35 # Format is: 36 # 12345 - my.job (if my.job is running, number is job's PID) 37 # - 0 my.other.job (if my.other.job is not running) 38 fields = line.strip().split('\t') 39 if fields[2] == self._service_name and fields[0] != "-": 40 pid = fields[0] 41 break 42 process.wait() 43 return pid 44 45 def Enable(self): 46 """Handles what pref pane does for enabling connection.""" 47 # Elevate privileges, otherwise tool_script executes with EUID != 0. 48 os.setuid(0) 49 subprocess.call([self._tool_script, '--enable'], 50 stdin=open(self._config_file)) 51 52 # Drop privileges, start the launchd job as the logged-in user. 53 os.setuid(self._real_user_id) 54 subprocess.call(['launchctl', 'start', self._service_name]) 55 56 # Starting a launchd job is an asynchronous operation that typically takes 57 # a couple of seconds, so poll until the job has started. 58 for _ in range(1, 10): 59 if self._GetJobPid(): 60 print '*** org.chromium.chromoting is running ***' 61 break 62 time.sleep(2) 63 64 def Disable(self): 65 """Handles what pref pane does for disabling connection.""" 66 # Elevate privileges, otherwise tool_script executes with EUID != 0. 67 os.setuid(0) 68 subprocess.call([self._tool_script, '--disable'], 69 stdin=open(self._config_file)) 70 71 # Drop privileges, stop the launchd job as the logged-in user. 72 os.setuid(self._real_user_id) 73 subprocess.call(['launchctl', 'stop', self._service_name]) 74 75 # Stopping a launchd job is an asynchronous operation that typically takes 76 # a couple of seconds, so poll until the job has stopped. 77 for _ in range(1, 10): 78 if not self._GetJobPid(): 79 print '*** org.chromium.chromoting is not running ***' 80 break 81 time.sleep(2) 82 83 def ChangePin(self): 84 """Handles what pref pane does for changing pin.""" 85 # Elevate privileges, otherwise tool_script executes with EUID != 0. 86 os.setuid(0) 87 subprocess.call([self._tool_script, '--save-config'], 88 stdin=open(self._config_file)) 89 90 # Drop privileges and send SIGHUP to org.chromium.chromoting 91 os.setuid(self._real_user_id) 92 os.kill(int(self._GetJobPid()), signal.SIGHUP) 93 94 def NotifyWebapp(self): 95 """Notifies the web app that pref pane operation is done.""" 96 notif_center = Foundation.NSDistributedNotificationCenter.defaultCenter() 97 notif_center.postNotificationName_object_userInfo_( 98 self._service_name + '.update_succeeded', None, None) 99 100 101 def Main(): 102 """Handles the mock pref pane actions.""" 103 assert sys.platform.startswith('darwin') 104 105 print '*** Started mock pref pane ***' 106 print '*** EUID=%d, UID=%d ***' % (os.geteuid(), os.getuid()) 107 108 pref_pane = MockPrefPane() 109 110 if sys.argv[1] == 'enable': 111 pref_pane.Enable() 112 elif sys.argv[1] == 'disable': 113 pref_pane.Disable() 114 elif sys.argv[1] == 'changepin': 115 pref_pane.ChangePin() 116 else: 117 print >>sys.stderr, 'Invalid syntax' 118 return 119 120 pref_pane.NotifyWebapp() 121 122 123 if __name__ == '__main__': 124 Main()
