src/tools/telemetry/telemetry/core/wpr_server.py

   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 from telemetry.core import util
   6
   7 # TODO(tonyg): Move webpagereplay.py to a common location.
   8 util.AddDirToPythonPath(
   9     util.GetChromiumSrcDir(), 'chrome', 'test', 'functional')
  10 import webpagereplay  # pylint: disable=F0401
  11
  12 def GetChromeFlags(replay_host, http_port, https_port):
  13   return webpagereplay.GetChromeFlags(replay_host, http_port, https_port)
  14
  15 class ReplayServer(object):
  16   def __init__(self, browser_backend, path, is_record_mode, is_append_mode,
  17                make_javascript_deterministic):
  18     self._browser_backend = browser_backend
  19     self._forwarder = None
  20     self._web_page_replay = None
  21     self._is_record_mode = is_record_mode
  22     self._is_append_mode = is_append_mode
  23
  24     self._forwarder = browser_backend.CreateForwarder(
  25         util.PortPair(browser_backend.webpagereplay_local_http_port,
  26                       browser_backend.webpagereplay_remote_http_port),
  27         util.PortPair(browser_backend.webpagereplay_local_https_port,
  28                       browser_backend.webpagereplay_remote_https_port))
  29
  30     wpr_args = browser_backend.browser_options.extra_wpr_args
  31     if self._is_record_mode:
  32       if self._is_append_mode:
  33         wpr_args.append('--append')
  34       else:
  35         wpr_args.append('--record')
  36     if not make_javascript_deterministic:
  37       wpr_args.append('--inject_scripts=')
  38     browser_backend.AddReplayServerOptions(wpr_args)
  39     self._web_page_replay = webpagereplay.ReplayServer(
  40         path,
  41         browser_backend.WEBPAGEREPLAY_HOST,
  42         browser_backend.webpagereplay_local_http_port,
  43         browser_backend.webpagereplay_local_https_port,
  44         wpr_args)
  45     # Remove --no-dns_forwarding if it wasn't explicitly requested by backend.
  46     if '--no-dns_forwarding' not in wpr_args:
  47       self._web_page_replay.replay_options.remove('--no-dns_forwarding')
  48     self._web_page_replay.StartServer()
  49
  50   def __enter__(self):
  51     return self
  52
  53   def __exit__(self, *args):
  54     self.Close()
  55
  56   def Close(self):
  57     if self._forwarder:
  58       self._forwarder.Close()
  59       self._forwarder = None
  60     if self._web_page_replay:
  61       self._web_page_replay.StopServer()
  62       self._web_page_replay = None