The Tor Browser: testing/mochitest/pywebsocket/standalone.py@b8a032363ba2 (annotated)

testing/mochitest/pywebsocket/standalone.py@b8a032363ba2 (annotated)

testing/mochitest/pywebsocket/standalone.py

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rwxr-xr-x

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 #!/usr/bin/env python
 #
 # Copyright 2011, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
 # in the documentation and/or other materials provided with the
 # distribution.
 #     * Neither the name of Google Inc. nor the names of its
 # contributors may be used to endorse or promote products derived from
 # this software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 """Standalone WebSocket server.
 BASIC USAGE
 Use this server to run mod_pywebsocket without Apache HTTP Server.
 Usage:
     python standalone.py [-p <ws_port>] [-w <websock_handlers>]
                          [-s <scan_dir>]
                          [-d <document_root>]
                          [-m <websock_handlers_map_file>]
                          ... for other options, see _main below ...
 <ws_port> is the port number to use for ws:// connection.
 <document_root> is the path to the root directory of HTML files.
 <websock_handlers> is the path to the root directory of WebSocket handlers.
 See __init__.py for details of <websock_handlers> and how to write WebSocket
 handlers. If this path is relative, <document_root> is used as the base.
 <scan_dir> is a path under the root directory. If specified, only the
 handlers under scan_dir are scanned. This is useful in saving scan time.
 CONFIGURATION FILE
 You can also write a configuration file and use it by specifying the path to
 the configuration file by --config option. Please write a configuration file
 following the documentation of the Python ConfigParser library. Name of each
 entry must be the long version argument name. E.g. to set log level to debug,
 add the following line:
 log_level=debug
 For options which doesn't take value, please add some fake value. E.g. for
 --tls option, add the following line:
 tls=True
 Note that tls will be enabled even if you write tls=False as the value part is
 fake.
 When both a command line argument and a configuration file entry are set for
 the same configuration item, the command line value will override one in the
 configuration file.
 THREADING
 This server is derived from SocketServer.ThreadingMixIn. Hence a thread is
 used for each request.
 SECURITY WARNING
 This uses CGIHTTPServer and CGIHTTPServer is not secure.
 It may execute arbitrary Python code or external programs. It should not be
 used outside a firewall.
 """
 import BaseHTTPServer
 import CGIHTTPServer
 import SimpleHTTPServer
 import SocketServer
 import ConfigParser
 import httplib
 import logging
 import logging.handlers
 import optparse
 import os
 import re
 import select
 import socket
 import sys
 import threading
 import time
 _HAS_SSL = False
 _HAS_OPEN_SSL = False
 try:
     import ssl
     _HAS_SSL = True
 except ImportError:
     try:
         import OpenSSL.SSL
         _HAS_OPEN_SSL = True
     except ImportError:
         pass
 from mod_pywebsocket import common
 from mod_pywebsocket import dispatch
 from mod_pywebsocket import handshake
 from mod_pywebsocket import http_header_util
 from mod_pywebsocket import memorizingfile
 from mod_pywebsocket import util
 _DEFAULT_LOG_MAX_BYTES = 1024 * 256
 _DEFAULT_LOG_BACKUP_COUNT = 5
 _DEFAULT_REQUEST_QUEUE_SIZE = 128
 # 1024 is practically large enough to contain WebSocket handshake lines.
 _MAX_MEMORIZED_LINES = 1024
 class _StandaloneConnection(object):
     """Mimic mod_python mp_conn."""
     def __init__(self, request_handler):
         """Construct an instance.
         Args:
             request_handler: A WebSocketRequestHandler instance.
         """
         self._request_handler = request_handler
     def get_local_addr(self):
         """Getter to mimic mp_conn.local_addr."""
         return (self._request_handler.server.server_name,
                 self._request_handler.server.server_port)
     local_addr = property(get_local_addr)
     def get_remote_addr(self):
         """Getter to mimic mp_conn.remote_addr.
         Setting the property in __init__ won't work because the request
         handler is not initialized yet there."""
         return self._request_handler.client_address
     remote_addr = property(get_remote_addr)
     def write(self, data):
         """Mimic mp_conn.write()."""
         return self._request_handler.wfile.write(data)
     def read(self, length):
         """Mimic mp_conn.read()."""
         return self._request_handler.rfile.read(length)
     def get_memorized_lines(self):
         """Get memorized lines."""
         return self._request_handler.rfile.get_memorized_lines()
 class _StandaloneRequest(object):
     """Mimic mod_python request."""
     def __init__(self, request_handler, use_tls):
         """Construct an instance.
         Args:
             request_handler: A WebSocketRequestHandler instance.
         """
         self._logger = util.get_class_logger(self)
         self._request_handler = request_handler
         self.connection = _StandaloneConnection(request_handler)
         self._use_tls = use_tls
         self.headers_in = request_handler.headers
     def get_uri(self):
         """Getter to mimic request.uri."""
         return self._request_handler.path
     uri = property(get_uri)
     def get_method(self):
         """Getter to mimic request.method."""
         return self._request_handler.command
     method = property(get_method)
     def is_https(self):
         """Mimic request.is_https()."""
         return self._use_tls
     def _drain_received_data(self):
         """Don't use this method from WebSocket handler. Drains unread data
         in the receive buffer.
         """
         raw_socket = self._request_handler.connection
         drained_data = util.drain_received_data(raw_socket)
         if drained_data:
             self._logger.debug(
                 'Drained data following close frame: %r', drained_data)
 class _StandaloneSSLConnection(object):
     """A wrapper class for OpenSSL.SSL.Connection to provide makefile method
     which is not supported by the class.
     """
     def __init__(self, connection):
         self._connection = connection
     def __getattribute__(self, name):
         if name in ('_connection', 'makefile'):
             return object.__getattribute__(self, name)
         return self._connection.__getattribute__(name)
     def __setattr__(self, name, value):
         if name in ('_connection', 'makefile'):
             return object.__setattr__(self, name, value)
         return self._connection.__setattr__(name, value)
     def makefile(self, mode='r', bufsize=-1):
         return socket._fileobject(self._connection, mode, bufsize)
 class WebSocketServer(SocketServer.ThreadingMixIn, BaseHTTPServer.HTTPServer):
     """HTTPServer specialized for WebSocket."""
     # Overrides SocketServer.ThreadingMixIn.daemon_threads
     daemon_threads = True
     # Overrides BaseHTTPServer.HTTPServer.allow_reuse_address
     allow_reuse_address = True
     def __init__(self, options):
         """Override SocketServer.TCPServer.__init__ to set SSL enabled
         socket object to self.socket before server_bind and server_activate,
         if necessary.
         """
         self._logger = util.get_class_logger(self)
         self.request_queue_size = options.request_queue_size
         self.__ws_is_shut_down = threading.Event()
         self.__ws_serving = False
         SocketServer.BaseServer.__init__(
             self, (options.server_host, options.port), WebSocketRequestHandler)
         # Expose the options object to allow handler objects access it. We name
         # it with websocket_ prefix to avoid conflict.
         self.websocket_server_options = options
         self._create_sockets()
         self.server_bind()
         self.server_activate()
     def _create_sockets(self):
         self.server_name, self.server_port = self.server_address
         self._sockets = []
         if not self.server_name:
             # On platforms that doesn't support IPv6, the first bind fails.
             # On platforms that supports IPv6
             # - If it binds both IPv4 and IPv6 on call with AF_INET6, the
             #   first bind succeeds and the second fails (we'll see 'Address
             #   already in use' error).
             # - If it binds only IPv6 on call with AF_INET6, both call are
             #   expected to succeed to listen both protocol.
             addrinfo_array = [
                 (socket.AF_INET6, socket.SOCK_STREAM, '', '', ''),
                 (socket.AF_INET, socket.SOCK_STREAM, '', '', '')]
         else:
             addrinfo_array = socket.getaddrinfo(self.server_name,
                                                 self.server_port,
                                                 socket.AF_UNSPEC,
                                                 socket.SOCK_STREAM,
                                                 socket.IPPROTO_TCP)
         for addrinfo in addrinfo_array:
             self._logger.info('Create socket on: %r', addrinfo)
             family, socktype, proto, canonname, sockaddr = addrinfo
             try:
                 socket_ = socket.socket(family, socktype)
             except Exception, e:
                 self._logger.info('Skip by failure: %r', e)
                 continue
             if self.websocket_server_options.use_tls:
                 if _HAS_SSL:
                     socket_ = ssl.wrap_socket(socket_,
                         keyfile=self.websocket_server_options.private_key,
                         certfile=self.websocket_server_options.certificate,
                         ssl_version=ssl.PROTOCOL_SSLv23)
                 if _HAS_OPEN_SSL:
                     ctx = OpenSSL.SSL.Context(OpenSSL.SSL.SSLv23_METHOD)
                     ctx.use_privatekey_file(
                         self.websocket_server_options.private_key)
                     ctx.use_certificate_file(
                         self.websocket_server_options.certificate)
                     socket_ = OpenSSL.SSL.Connection(ctx, socket_)
             self._sockets.append((socket_, addrinfo))
     def server_bind(self):
         """Override SocketServer.TCPServer.server_bind to enable multiple
         sockets bind.
         """
         failed_sockets = []
         for socketinfo in self._sockets:
             socket_, addrinfo = socketinfo
             self._logger.info('Bind on: %r', addrinfo)
             if self.allow_reuse_address:
                 socket_.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
             try:
                 socket_.bind(self.server_address)
             except Exception, e:
                 self._logger.info('Skip by failure: %r', e)
                 socket_.close()
                 failed_sockets.append(socketinfo)
         for socketinfo in failed_sockets:
             self._sockets.remove(socketinfo)
     def server_activate(self):
         """Override SocketServer.TCPServer.server_activate to enable multiple
         sockets listen.
         """
         failed_sockets = []
         for socketinfo in self._sockets:
             socket_, addrinfo = socketinfo
             self._logger.info('Listen on: %r', addrinfo)
             try:
                 socket_.listen(self.request_queue_size)
             except Exception, e:
                 self._logger.info('Skip by failure: %r', e)
                 socket_.close()
                 failed_sockets.append(socketinfo)
         for socketinfo in failed_sockets:
             self._sockets.remove(socketinfo)
     def server_close(self):
         """Override SocketServer.TCPServer.server_close to enable multiple
         sockets close.
         """
         for socketinfo in self._sockets:
             socket_, addrinfo = socketinfo
             self._logger.info('Close on: %r', addrinfo)
             socket_.close()
     def fileno(self):
         """Override SocketServer.TCPServer.fileno."""
         self._logger.critical('Not supported: fileno')
         return self._sockets[0][0].fileno()
     def handle_error(self, rquest, client_address):
         """Override SocketServer.handle_error."""
         self._logger.error(
             'Exception in processing request from: %r\n%s',
             client_address,
             util.get_stack_trace())
         # Note: client_address is a tuple.
     def get_request(self):
         """Override TCPServer.get_request to wrap OpenSSL.SSL.Connection
         object with _StandaloneSSLConnection to provide makefile method. We
         cannot substitute OpenSSL.SSL.Connection.makefile since it's readonly
         attribute.
         """
         accepted_socket, client_address = self.socket.accept()
         if self.websocket_server_options.use_tls and _HAS_OPEN_SSL:
             accepted_socket = _StandaloneSSLConnection(accepted_socket)
         return accepted_socket, client_address
     def serve_forever(self, poll_interval=0.5):
         """Override SocketServer.BaseServer.serve_forever."""
         self.__ws_serving = True
         self.__ws_is_shut_down.clear()
         handle_request = self.handle_request
         if hasattr(self, '_handle_request_noblock'):
             handle_request = self._handle_request_noblock
         else:
             self._logger.warning('Fallback to blocking request handler')
         try:
             while self.__ws_serving:
                 r, w, e = select.select(
                     [socket_[0] for socket_ in self._sockets],
                     [], [], poll_interval)
                 for socket_ in r:
                     self.socket = socket_
                     handle_request()
                 self.socket = None
         finally:
             self.__ws_is_shut_down.set()
     def shutdown(self):
         """Override SocketServer.BaseServer.shutdown."""
         self.__ws_serving = False
         self.__ws_is_shut_down.wait()
 class WebSocketRequestHandler(CGIHTTPServer.CGIHTTPRequestHandler):
     """CGIHTTPRequestHandler specialized for WebSocket."""
     # Use httplib.HTTPMessage instead of mimetools.Message.
     MessageClass = httplib.HTTPMessage
     def setup(self):
         """Override SocketServer.StreamRequestHandler.setup to wrap rfile
         with MemorizingFile.
         This method will be called by BaseRequestHandler's constructor
         before calling BaseHTTPRequestHandler.handle.
         BaseHTTPRequestHandler.handle will call
         BaseHTTPRequestHandler.handle_one_request and it will call
         WebSocketRequestHandler.parse_request.
         """
         # Call superclass's setup to prepare rfile, wfile, etc. See setup
         # definition on the root class SocketServer.StreamRequestHandler to
         # understand what this does.
         CGIHTTPServer.CGIHTTPRequestHandler.setup(self)
         self.rfile = memorizingfile.MemorizingFile(
             self.rfile,
             max_memorized_lines=_MAX_MEMORIZED_LINES)
     def __init__(self, request, client_address, server):
         self._logger = util.get_class_logger(self)
         self._options = server.websocket_server_options
         # Overrides CGIHTTPServerRequestHandler.cgi_directories.
         self.cgi_directories = self._options.cgi_directories
         # Replace CGIHTTPRequestHandler.is_executable method.
         if self._options.is_executable_method is not None:
             self.is_executable = self._options.is_executable_method
         # This actually calls BaseRequestHandler.__init__.
         CGIHTTPServer.CGIHTTPRequestHandler.__init__(
             self, request, client_address, server)
     def parse_request(self):
         """Override BaseHTTPServer.BaseHTTPRequestHandler.parse_request.
         Return True to continue processing for HTTP(S), False otherwise.
         See BaseHTTPRequestHandler.handle_one_request method which calls
         this method to understand how the return value will be handled.
         """
         # We hook parse_request method, but also call the original
         # CGIHTTPRequestHandler.parse_request since when we return False,
         # CGIHTTPRequestHandler.handle_one_request continues processing and
         # it needs variables set by CGIHTTPRequestHandler.parse_request.
         #
         # Variables set by this method will be also used by WebSocket request
         # handling (self.path, self.command, self.requestline, etc. See also
         # how _StandaloneRequest's members are implemented using these
         # attributes).
         if not CGIHTTPServer.CGIHTTPRequestHandler.parse_request(self):
             return False
         host, port, resource = http_header_util.parse_uri(self.path)
         if resource is None:
             self._logger.info('Invalid URI: %r', self.path)
             self._logger.info('Fallback to CGIHTTPRequestHandler')
             return True
         server_options = self.server.websocket_server_options
         if host is not None:
             validation_host = server_options.validation_host
             if validation_host is not None and host != validation_host:
                 self._logger.info('Invalid host: %r (expected: %r)',
                                   host,
                                   validation_host)
                 self._logger.info('Fallback to CGIHTTPRequestHandler')
                 return True
         if port is not None:
             validation_port = server_options.validation_port
             if validation_port is not None and port != validation_port:
                 self._logger.info('Invalid port: %r (expected: %r)',
                                   port,
                                   validation_port)
                 self._logger.info('Fallback to CGIHTTPRequestHandler')
                 return True
         self.path = resource
         request = _StandaloneRequest(self, self._options.use_tls)
         try:
             # Fallback to default http handler for request paths for which
             # we don't have request handlers.
             if not self._options.dispatcher.get_handler_suite(self.path):
                 self._logger.info('No handler for resource: %r',
                                   self.path)
                 self._logger.info('Fallback to CGIHTTPRequestHandler')
                 return True
         except dispatch.DispatchException, e:
             self._logger.info('%s', e)
             self.send_error(e.status)
             return False
         # If any Exceptions without except clause setup (including
         # DispatchException) is raised below this point, it will be caught
         # and logged by WebSocketServer.
         try:
             try:
                 handshake.do_handshake(
                     request,
                     self._options.dispatcher,
                     allowDraft75=self._options.allow_draft75,
                     strict=self._options.strict)
             except handshake.VersionException, e:
                 self._logger.info('%s', e)
                 self.send_response(common.HTTP_STATUS_BAD_REQUEST)
                 self.send_header(common.SEC_WEBSOCKET_VERSION_HEADER,
                                  e.supported_versions)
                 self.end_headers()
                 return False
             except handshake.HandshakeException, e:
                 # Handshake for ws(s) failed.
                 self._logger.info('%s', e)
                 self.send_error(e.status)
                 return False
             request._dispatcher = self._options.dispatcher
             self._options.dispatcher.transfer_data(request)
         except handshake.AbortedByUserException, e:
             self._logger.info('%s', e)
         return False
     def log_request(self, code='-', size='-'):
         """Override BaseHTTPServer.log_request."""
         self._logger.info('"%s" %s %s',
                           self.requestline, str(code), str(size))
     def log_error(self, *args):
         """Override BaseHTTPServer.log_error."""
         # Despite the name, this method is for warnings than for errors.
         # For example, HTTP status code is logged by this method.
         self._logger.warning('%s - %s',
                              self.address_string(),
                              args[0] % args[1:])
     def is_cgi(self):
         """Test whether self.path corresponds to a CGI script.
         Add extra check that self.path doesn't contains ..
         Also check if the file is a executable file or not.
         If the file is not executable, it is handled as static file or dir
         rather than a CGI script.
         """
         if CGIHTTPServer.CGIHTTPRequestHandler.is_cgi(self):
             if '..' in self.path:
                 return False
             # strip query parameter from request path
             resource_name = self.path.split('?', 2)[0]
             # convert resource_name into real path name in filesystem.
             scriptfile = self.translate_path(resource_name)
             if not os.path.isfile(scriptfile):
                 return False
             if not self.is_executable(scriptfile):
                 return False
             return True
         return False
 def _configure_logging(options):
     logger = logging.getLogger()
     logger.setLevel(logging.getLevelName(options.log_level.upper()))
     if options.log_file:
         handler = logging.handlers.RotatingFileHandler(
                 options.log_file, 'a', options.log_max, options.log_count)
     else:
         handler = logging.StreamHandler()
     formatter = logging.Formatter(
             '[%(asctime)s] [%(levelname)s] %(name)s: %(message)s')
     handler.setFormatter(formatter)
     logger.addHandler(handler)
 def _alias_handlers(dispatcher, websock_handlers_map_file):
     """Set aliases specified in websock_handler_map_file in dispatcher.
     Args:
         dispatcher: dispatch.Dispatcher instance
         websock_handler_map_file: alias map file
     """
     fp = open(websock_handlers_map_file)
     try:
         for line in fp:
             if line[0] == '#' or line.isspace():
                 continue
             m = re.match('(\S+)\s+(\S+)', line)
             if not m:
                 logging.warning('Wrong format in map file:' + line)
                 continue
             try:
                 dispatcher.add_resource_path_alias(
                     m.group(1), m.group(2))
             except dispatch.DispatchException, e:
                 logging.error(str(e))
     finally:
         fp.close()
 def _build_option_parser():
     parser = optparse.OptionParser()
     parser.add_option('--config', dest='config_file', type='string',
                       default=None,
                       help=('Path to configuration file. See the file comment '
                             'at the top of this file for the configuration '
                             'file format'))
     parser.add_option('-H', '--server-host', '--server_host',
                       dest='server_host',
                       default='',
                       help='server hostname to listen to')
     parser.add_option('-V', '--validation-host', '--validation_host',
                       dest='validation_host',
                       default=None,
                       help='server hostname to validate in absolute path.')
     parser.add_option('-p', '--port', dest='port', type='int',
                       default=common.DEFAULT_WEB_SOCKET_PORT,
                       help='port to listen to')
     parser.add_option('-P', '--validation-port', '--validation_port',
                       dest='validation_port', type='int',
                       default=None,
                       help='server port to validate in absolute path.')
     parser.add_option('-w', '--websock-handlers', '--websock_handlers',
                       dest='websock_handlers',
                       default='.',
                       help='WebSocket handlers root directory.')
     parser.add_option('-m', '--websock-handlers-map-file',
                       '--websock_handlers_map_file',
                       dest='websock_handlers_map_file',
                       default=None,
                       help=('WebSocket handlers map file. '
                             'Each line consists of alias_resource_path and '
                             'existing_resource_path, separated by spaces.'))
     parser.add_option('-s', '--scan-dir', '--scan_dir', dest='scan_dir',
                       default=None,
                       help=('WebSocket handlers scan directory. '
                             'Must be a directory under websock_handlers.'))
     parser.add_option('--allow-handlers-outside-root-dir',
                       '--allow_handlers_outside_root_dir',
                       dest='allow_handlers_outside_root_dir',
                       action='store_true',
                       default=False,
                       help=('Scans WebSocket handlers even if their canonical '
                             'path is not under websock_handlers.'))
     parser.add_option('-d', '--document-root', '--document_root',
                       dest='document_root', default='.',
                       help='Document root directory.')
     parser.add_option('-x', '--cgi-paths', '--cgi_paths', dest='cgi_paths',
                       default=None,
                       help=('CGI paths relative to document_root.'
                             'Comma-separated. (e.g -x /cgi,/htbin) '
                             'Files under document_root/cgi_path are handled '
                             'as CGI programs. Must be executable.'))
     parser.add_option('-t', '--tls', dest='use_tls', action='store_true',
                       default=False, help='use TLS (wss://)')
     parser.add_option('-k', '--private-key', '--private_key',
                       dest='private_key',
                       default='', help='TLS private key file.')
     parser.add_option('-c', '--certificate', dest='certificate',
                       default='', help='TLS certificate file.')
     parser.add_option('-l', '--log-file', '--log_file', dest='log_file',
                       default='', help='Log file.')
     parser.add_option('--log-level', '--log_level', type='choice',
                       dest='log_level', default='warn',
                       choices=['debug', 'info', 'warning', 'warn', 'error',
                                'critical'],
                       help='Log level.')
     parser.add_option('--thread-monitor-interval-in-sec',
                       '--thread_monitor_interval_in_sec',
                       dest='thread_monitor_interval_in_sec',
                       type='int', default=-1,
                       help=('If positive integer is specified, run a thread '
                             'monitor to show the status of server threads '
                             'periodically in the specified inteval in '
                             'second. If non-positive integer is specified, '
                             'disable the thread monitor.'))
     parser.add_option('--log-max', '--log_max', dest='log_max', type='int',
                       default=_DEFAULT_LOG_MAX_BYTES,
                       help='Log maximum bytes')
     parser.add_option('--log-count', '--log_count', dest='log_count',
                       type='int', default=_DEFAULT_LOG_BACKUP_COUNT,
                       help='Log backup count')
     parser.add_option('--allow-draft75', dest='allow_draft75',
                       action='store_true', default=False,
                       help='Allow draft 75 handshake')
     parser.add_option('--strict', dest='strict', action='store_true',
                       default=False, help='Strictly check handshake request')
     parser.add_option('-q', '--queue', dest='request_queue_size', type='int',
                       default=_DEFAULT_REQUEST_QUEUE_SIZE,
                       help='request queue size')
     return parser
 class ThreadMonitor(threading.Thread):
     daemon = True
     def __init__(self, interval_in_sec):
         threading.Thread.__init__(self, name='ThreadMonitor')
         self._logger = util.get_class_logger(self)
         self._interval_in_sec = interval_in_sec
     def run(self):
         while True:
             thread_name_list = []
             for thread in threading.enumerate():
                 thread_name_list.append(thread.name)
             self._logger.info(
                 "%d active threads: %s",
                 threading.active_count(),
                 ', '.join(thread_name_list))
             time.sleep(self._interval_in_sec)
 def _parse_args_and_config(args):
     parser = _build_option_parser()
     # First, parse options without configuration file.
     temporary_options, temporary_args = parser.parse_args(args=args)
     if temporary_args:
         logging.critical(
             'Unrecognized positional arguments: %r', temporary_args)
         sys.exit(1)
     if temporary_options.config_file:
         try:
             config_fp = open(temporary_options.config_file, 'r')
         except IOError, e:
             logging.critical(
                 'Failed to open configuration file %r: %r',
                 temporary_options.config_file,
                 e)
             sys.exit(1)
         config_parser = ConfigParser.SafeConfigParser()
         config_parser.readfp(config_fp)
         config_fp.close()
         args_from_config = []
         for name, value in config_parser.items('pywebsocket'):
             args_from_config.append('--' + name)
             args_from_config.append(value)
         if args is None:
             args = args_from_config
         else:
             args = args_from_config + args
         return parser.parse_args(args=args)
     else:
         return temporary_options, temporary_args
 def _main(args=None):
     options, args = _parse_args_and_config(args=args)
     os.chdir(options.document_root)
     _configure_logging(options)
     # TODO(tyoshino): Clean up initialization of CGI related values. Move some
     # of code here to WebSocketRequestHandler class if it's better.
     options.cgi_directories = []
     options.is_executable_method = None
     if options.cgi_paths:
         options.cgi_directories = options.cgi_paths.split(',')
         if sys.platform in ('cygwin', 'win32'):
             cygwin_path = None
             # For Win32 Python, it is expected that CYGWIN_PATH
             # is set to a directory of cygwin binaries.
             # For example, websocket_server.py in Chromium sets CYGWIN_PATH to
             # full path of third_party/cygwin/bin.
             if 'CYGWIN_PATH' in os.environ:
                 cygwin_path = os.environ['CYGWIN_PATH']
             util.wrap_popen3_for_win(cygwin_path)
             def __check_script(scriptpath):
                 return util.get_script_interp(scriptpath, cygwin_path)
             options.is_executable_method = __check_script
     if options.use_tls:
         if not (_HAS_SSL or _HAS_OPEN_SSL):
             logging.critical('TLS support requires ssl or pyOpenSSL.')
             sys.exit(1)
         if not options.private_key or not options.certificate:
             logging.critical(
                     'To use TLS, specify private_key and certificate.')
             sys.exit(1)
     if not options.scan_dir:
         options.scan_dir = options.websock_handlers
     try:
         if options.thread_monitor_interval_in_sec > 0:
             # Run a thread monitor to show the status of server threads for
             # debugging.
             ThreadMonitor(options.thread_monitor_interval_in_sec).start()
         # Share a Dispatcher among request handlers to save time for
         # instantiation.  Dispatcher can be shared because it is thread-safe.
         options.dispatcher = dispatch.Dispatcher(
             options.websock_handlers,
             options.scan_dir,
             options.allow_handlers_outside_root_dir)
         if options.websock_handlers_map_file:
             _alias_handlers(options.dispatcher,
                             options.websock_handlers_map_file)
         warnings = options.dispatcher.source_warnings()
         if warnings:
             for warning in warnings:
                 logging.warning('mod_pywebsocket: %s' % warning)
         server = WebSocketServer(options)
         server.serve_forever()
     except Exception, e:
         logging.critical('mod_pywebsocket: %s' % e)
         logging.critical('mod_pywebsocket: %s' % util.get_stack_trace())
         sys.exit(1)
 if __name__ == '__main__':
     _main(sys.argv[1:])
 # vi:sts=4 sw=4 et

The Tor Browser / annotate

testing/mochitest/pywebsocket/standalone.py@b8a032363ba2 (annotated)

testing/mochitest/pywebsocket/standalone.py