220 lines
8.2 KiB
Python
220 lines
8.2 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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import logging, os
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from autotest_lib.client.cros import constants
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from autotest_lib.client.bin import utils
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from telemetry.core import cros_interface, exceptions, util
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from telemetry.internal.browser import browser_finder, browser_options
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from telemetry.internal.browser import extension_to_load
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Error = exceptions.Error
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class Chrome(object):
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"""Wrapper for creating a telemetry browser instance with extensions."""
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BROWSER_TYPE_LOGIN = 'system'
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BROWSER_TYPE_GUEST = 'system-guest'
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def __init__(self, logged_in=True, extension_paths=[], autotest_ext=False,
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is_component=True, num_tries=3, extra_browser_args=None,
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clear_enterprise_policy=True, dont_override_profile=False,
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disable_gaia_services=True, disable_default_apps = True,
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auto_login=True, gaia_login=False,
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username=None, password=None, gaia_id=None):
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"""
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Constructor of telemetry wrapper.
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@param logged_in: Regular user (True) or guest user (False).
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@param extension_paths: path of unpacked extension to install.
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@param autotest_ext: Load a component extension with privileges to
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invoke chrome.autotestPrivate.
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@param is_component: Whether extensions should be loaded as component
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extensions.
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@param num_tries: Number of attempts to log in.
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@param extra_browser_args: Additional argument(s) to pass to the
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browser. It can be a string or a list.
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@param clear_enterprise_policy: Clear enterprise policy before
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logging in.
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@param dont_override_profile: Don't delete cryptohome before login.
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Telemetry will output a warning with this
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option.
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@param disable_gaia_services: For enterprise autotests, this option may
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be used to enable policy fetch.
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@param disable_default_apps: For tests that exercise default apps.
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@param auto_login: Does not login automatically if this is False.
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Useful if you need to examine oobe.
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@param gaia_login: Logs in to real gaia.
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@param username: Log in using this username instead of the default.
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@param password: Log in using this password instead of the default.
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@param gaia_id: Log in using this gaia_id instead of the default.
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"""
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self._autotest_ext_path = None
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if autotest_ext:
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self._autotest_ext_path = os.path.join(os.path.dirname(__file__),
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'autotest_private_ext')
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extension_paths.append(self._autotest_ext_path)
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finder_options = browser_options.BrowserFinderOptions()
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self._browser_type = (self.BROWSER_TYPE_LOGIN
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if logged_in else self.BROWSER_TYPE_GUEST)
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finder_options.browser_type = self.browser_type
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if extra_browser_args:
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finder_options.browser_options.AppendExtraBrowserArgs(
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extra_browser_args)
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if logged_in:
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extensions_to_load = finder_options.extensions_to_load
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for path in extension_paths:
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extension = extension_to_load.ExtensionToLoad(
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path, self.browser_type, is_component=is_component)
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extensions_to_load.append(extension)
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self._extensions_to_load = extensions_to_load
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# finder options must be set before parse_args(), browser options must
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# be set before Create().
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# TODO(crbug.com/360890) Below MUST be '2' so that it doesn't inhibit
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# autotest debug logs
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finder_options.verbosity = 2
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finder_options.CreateParser().parse_args(args=[])
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b_options = finder_options.browser_options
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b_options.disable_component_extensions_with_background_pages = False
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b_options.create_browser_with_oobe = True
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b_options.clear_enterprise_policy = clear_enterprise_policy
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b_options.dont_override_profile = dont_override_profile
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b_options.disable_gaia_services = disable_gaia_services
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b_options.disable_default_apps = disable_default_apps
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b_options.disable_component_extensions_with_background_pages = disable_default_apps
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b_options.auto_login = auto_login
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b_options.gaia_login = gaia_login
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self.username = b_options.username if username is None else username
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self.password = b_options.password if password is None else password
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b_options.username = self.username
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b_options.password = self.password
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# gaia_id will be added to telemetry code in chromium repository later
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try:
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self.gaia_id = b_options.gaia_id if gaia_id is None else gaia_id
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b_options.gaia_id = self.gaia_id
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except AttributeError:
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pass
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# Turn on collection of Chrome coredumps via creation of a magic file.
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# (Without this, Chrome coredumps are trashed.)
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open(constants.CHROME_CORE_MAGIC_FILE, 'w').close()
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for i in range(num_tries):
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try:
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browser_to_create = browser_finder.FindBrowser(finder_options)
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self._browser = browser_to_create.Create(finder_options)
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break
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except (exceptions.LoginException) as e:
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logging.error('Timed out logging in, tries=%d, error=%s',
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i, repr(e))
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if i == num_tries-1:
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raise
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def __enter__(self):
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return self
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def __exit__(self, *args):
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self.close()
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@property
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def browser(self):
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"""Returns a telemetry browser instance."""
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return self._browser
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def get_extension(self, extension_path):
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"""Fetches a telemetry extension instance given the extension path."""
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for ext in self._extensions_to_load:
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if extension_path == ext.path:
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return self.browser.extensions[ext]
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return None
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@property
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def autotest_ext(self):
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"""Returns the autotest extension."""
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return self.get_extension(self._autotest_ext_path)
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@property
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def login_status(self):
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"""Returns login status."""
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ext = self.autotest_ext
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if not ext:
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return None
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ext.ExecuteJavaScript('''
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window.__login_status = null;
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chrome.autotestPrivate.loginStatus(function(s) {
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window.__login_status = s;
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});
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''')
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return ext.EvaluateJavaScript('window.__login_status')
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@property
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def browser_type(self):
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"""Returns the browser_type."""
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return self._browser_type
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@staticmethod
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def did_browser_crash(func):
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"""Runs func, returns True if the browser crashed, False otherwise.
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@param func: function to run.
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"""
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try:
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func()
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except (Error):
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return True
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return False
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@staticmethod
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def wait_for_browser_restart(func):
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"""Runs func, and waits for a browser restart.
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@param func: function to run.
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"""
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_cri = cros_interface.CrOSInterface()
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pid = _cri.GetChromePid()
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Chrome.did_browser_crash(func)
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utils.poll_for_condition(lambda: pid != _cri.GetChromePid(), timeout=60)
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def wait_for_browser_to_come_up(self):
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"""Waits for the browser to come up. This should only be called after a
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browser crash.
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"""
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def _BrowserReady(cr):
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tabs = [] # Wrapper for pass by reference.
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if self.did_browser_crash(
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lambda: tabs.append(cr.browser.tabs.New())):
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return False
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try:
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tabs[0].Close()
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except:
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# crbug.com/350941
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logging.error('Timed out closing tab')
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return True
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util.WaitFor(lambda: _BrowserReady(self), timeout=10)
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def close(self):
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"""Closes the browser."""
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self._browser.Close()
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