Source Code for Module trac.web.cgi_frontend

 1 #!/usr/bin/env python 
 2 # -*- coding: utf-8 -*- 
 3 # 
 4 # Copyright (C)2005-2009 Edgewall Software 
 5 # Copyright (C) 2005 Christopher Lenz <cmlenz@gmx.de> 
 6 # Copyright (C) 2005 Matthew Good <trac@matt-good.net> 
 7 # All rights reserved. 
 8 # 
 9 # This software is licensed as described in the file COPYING, which 
10 # you should have received as part of this distribution. The terms 
11 # are also available at http://trac.edgewall.org/wiki/TracLicense. 
12 # 
13 # This software consists of voluntary contributions made by many 
14 # individuals. For the exact contribution history, see the revision 
15 # history and logs, available at http://trac.edgewall.org/log/. 
16 # 
17 # Author: Christopher Lenz <cmlenz@gmx.de> 
18 # Matthew Good <trac@matt-good.net> 
19 
20 import os 
21 import pkg_resources 
22 import sys 
23 
24 from trac  import __version__ as VERSION 
25 from trac .web .main  import dispatch_request  
26 from trac .web .wsgi  import WSGIGateway  
27 
28 
29 - class CGIGateway (WSGIGateway): 
30 
31  wsgi_multithread  = False 
32  wsgi_multiprocess  = False 
33  wsgi_run_once  = True 
34 
35 -  def __init__ (self): 
36  WSGIGateway .__init__ (self, dict(os.environ)) 
37 
38 -  def _write (self, data): 
39  assert self.headers_set, 'Response not started' 
40 
41  if not self.headers_sent: 
42  status, headers = self.headers_sent = self.headers_set 
43  sys.stdout.write ('Status: %s\r\n' % status) 
44  for header in headers: 
45  sys.stdout.write ('%s: %s\r\n' % header) 
46  sys.stdout.write ('\r\n') 
47  sys.stdout.flush() 
48 
49  sys.stdout.write (data ) 
50  sys.stdout.flush() 
51 
52 
53 - def run (): 
54  try: # Make FreeBSD use blocking I/O like other platforms 
55  import fcntl 
56  for stream in [sys.stdin, sys.stdout]: 
57  fd = stream.fileno() 
58  flags = fcntl.fcntl(fd, fcntl.F_GETFL) 
59  fcntl.fcntl(fd, fcntl.F_SETFL, flags & ~os.O_NONBLOCK) 
60  except (ImportError, AttributeError): 
61  pass 
62 
63  try: # Use binary I/O on Windows 
64  import msvcrt 
65  msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY) 
66  msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) 
67  except ImportError: 
68  pass 
69 
70  gateway = CGIGateway () 
71  gateway.run (dispatch_request ) 
72 
73 if __name__ == '__main__': 
74  pkg_resources.require ('Trac==%s' % VERSION) 
75  run () 
76