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 forwarders
   6
   7 # TODO(tonyg): Move webpagereplay.py's guts into this class and
   8 # make ReplayServer subclass LocalServer.
   9 from telemetry.core import webpagereplay
  10
  11
  12 def GetChromeFlags(replay_host, port_pairs):
  13   return webpagereplay.GetChromeFlags(replay_host, port_pairs.http.remote_port,
  14                                       port_pairs.https.remote_port)
  15
  16
  17 class ReplayServer(object):
  18   def __init__(self, browser_backend, path, is_record_mode, is_append_mode,
  19                make_javascript_deterministic):
  20     self._browser_backend = browser_backend
  21     self._forwarder = None
  22     self._web_page_replay = None
  23     self._is_record_mode = is_record_mode
  24     self._is_append_mode = is_append_mode
  25
  26     wpr_args = browser_backend.browser_options.extra_wpr_args
  27     if self._is_record_mode:
  28       if self._is_append_mode:
  29         wpr_args.append('--append')
  30       else:
  31         wpr_args.append('--record')
  32     if not make_javascript_deterministic:
  33       wpr_args.append('--inject_scripts=')
  34     browser_backend.AddReplayServerOptions(wpr_args)
  35     self._web_page_replay = webpagereplay.ReplayServer(
  36         path, self._browser_backend.forwarder_factory.host_ip,
  37         browser_backend.wpr_port_pairs.dns.local_port if
  38         browser_backend.wpr_port_pairs.dns else 0,
  39         browser_backend.wpr_port_pairs.http.local_port,
  40         browser_backend.wpr_port_pairs.https.local_port,
  41         wpr_args)
  42     # Remove --no-dns_forwarding if it wasn't explicitly requested by backend.
  43     if '--no-dns_forwarding' not in wpr_args:
  44       self._web_page_replay.replay_options.remove('--no-dns_forwarding')
  45     self._web_page_replay.StartServer()
  46
  47     browser_backend.wpr_port_pairs = forwarders.PortPairs(
  48         http=forwarders.PortPair(
  49             self._web_page_replay.http_port,
  50             browser_backend.wpr_port_pairs.http.remote_port or
  51             self._web_page_replay.http_port),
  52         https=forwarders.PortPair(
  53             self._web_page_replay.https_port,
  54             browser_backend.wpr_port_pairs.https.remote_port or
  55             self._web_page_replay.https_port),
  56         dns=forwarders.PortPair(
  57             self._web_page_replay.dns_port,
  58             browser_backend.wpr_port_pairs.dns.remote_port or
  59             self._web_page_replay.dns_port)
  60             if browser_backend.wpr_port_pairs.dns else None)
  61
  62     self._forwarder = browser_backend.forwarder_factory.Create(
  63         browser_backend.wpr_port_pairs)
  64
  65   def __enter__(self):
  66     return self
  67
  68   def __exit__(self, *args):
  69     self.Close()
  70
  71   def Close(self):
  72     if self._forwarder:
  73       self._forwarder.Close()
  74       self._forwarder = None
  75     if self._web_page_replay:
  76       self._web_page_replay.StopServer()
  77       self._web_page_replay = None