sfa/server/modpythonapi/ModPython.py

   1 #
   2 # Apache mod_python interface
   3 #
   4 # Aaron Klingaman <alk@absarokasoft.com>
   5 # Mark Huang <mlhuang@cs.princeton.edu>
   6 #
   7 # Copyright (C) 2004-2006 The Trustees of Princeton University
   8 #
   9
  10 import sys
  11 import traceback
  12 import xmlrpclib
  13 from mod_python import apache
  14
  15 from API import RemoteApi
  16 api = RemoteApi()
  17
  18 class unbuffered:
  19     """\r
  20     Write to /var/log/httpd/error_log. See\r
  21 \r
  22     http://www.modpython.org/FAQ/faqw.py?req=edit&file=faq02.003.htp\r
  23     """\r
  24 \r
  25     def write(self, data):\r
  26         sys.stderr.write(data)\r
  27         sys.stderr.flush()\r
  28 \r
  29 #log = unbuffered()
  30
  31 def handler(req):
  32     try:
  33         if req.method != "POST":
  34             req.content_type = "text/html"
  35             req.send_http_header()
  36             req.write("""
  37 <html><head>
  38 <title>PLCAPI XML-RPC/SOAP Interface</title>
  39 </head><body>
  40 <h1>PLCAPI XML-RPC/SOAP Interface</h1>
  41 <p>Please use XML-RPC or SOAP to access the PLCAPI.</p>
  42 </body></html>
  43 """)
  44             return apache.OK
  45
  46         # Read request
  47         request = req.read(int(req.headers_in['content-length']))
  48
  49         # mod_python < 3.2: The IP address portion of remote_addr is
  50         # incorrect (always 0.0.0.0) when IPv6 is enabled.
  51         # http://issues.apache.org/jira/browse/MODPYTHON-64?page=all
  52         (remote_ip, remote_port) = req.connection.remote_addr
  53         remote_addr = (req.connection.remote_ip, remote_port)
  54
  55         # Handle request
  56         response = api.handle(remote_addr, request)
  57
  58         # Write response
  59         req.content_type = "text/xml; charset=" + api.encoding
  60         req.send_http_header()
  61         req.write(response)
  62
  63         return apache.OK
  64
  65     except Exception, err:
  66         # Log error in /var/log/httpd/(ssl_)?error_log
  67         print >> log, err, traceback.format_exc()
  68         return apache.HTTP_INTERNAL_SERVER_ERROR