tools/httpd.py

   1 #!/usr/bin/python
   2 # Copyright 2008, Google Inc.
   3 # All rights reserved.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions are
   7 # met:
   8 #
   9 #     * Redistributions of source code must retain the above copyright
  10 # notice, this list of conditions and the following disclaimer.
  11 #     * Redistributions in binary form must reproduce the above
  12 # copyright notice, this list of conditions and the following disclaimer
  13 # in the documentation and/or other materials provided with the
  14 # distribution.
  15 #     * Neither the name of Google Inc. nor the names of its
  16 # contributors may be used to endorse or promote products derived from
  17 # this software without specific prior written permission.
  18 #
  19 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30
  31
  32 """A tiny web server.
  33
  34 This is intended to be used for testing, and
  35 only run from within the
  36 googleclient/native_client
  37 """
  38
  39
  40 import BaseHTTPServer
  41 import logging
  42 import os
  43 import SimpleHTTPServer
  44 import SocketServer
  45 import sys
  46
  47 logging.getLogger().setLevel(logging.INFO)
  48
  49 # Using 'localhost' means that we only accept connections
  50 # via the loop back interface.
  51 SERVER_PORT = 5103
  52 SERVER_HOST = ''
  53
  54 # We only run from the native_client directory, so that not too much
  55 # is exposed via this HTTP server.  Everything in the directory is
  56 # served, so there should never be anything potentially sensitive in
  57 # the serving directory, especially if the machine might be a
  58 # multi-user machine and not all users are trusted.  We only serve via
  59 # the loopback interface.
  60
  61 SAFE_DIR_COMPONENTS = ['googleclient', 'native_client']
  62 SAFE_DIR_SUFFIX = apply(os.path.join, SAFE_DIR_COMPONENTS)
  63
  64
  65 def SanityCheckDirectory():
  66   if os.getcwd().endswith(SAFE_DIR_SUFFIX):
  67     return
  68   # endif
  69   logging.error('httpd.py should only be run from the %s', SAFE_DIR_SUFFIX)
  70   logging.error('directory for testing purposes.')
  71   logging.error('We are currently in %s', os.getcwd())
  72   sys.exit(1)
  73 # enddef
  74
  75 # the sole purpose of this class is to make the BaseHTTPServer threaded
  76 class ThreadedServer(SocketServer.ThreadingMixIn,
  77                      BaseHTTPServer.HTTPServer):
  78   pass
  79
  80
  81 def Run(server_address,
  82         server_class=ThreadedServer,
  83         handler_class=SimpleHTTPServer.SimpleHTTPRequestHandler):
  84   httpd = server_class(server_address, handler_class)
  85   logging.info('started server on port %d', httpd.server_address[1])
  86   httpd.serve_forever()
  87 # enddef
  88
  89
  90 if __name__ == '__main__':
  91   SanityCheckDirectory()
  92   if len(sys.argv) > 1:
  93     Run((SERVER_HOST, int(sys.argv[1])))
  94   else:
  95     Run((SERVER_HOST, SERVER_PORT))
  96   # endif
  97 # endif