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 # $Id: ModPython.py,v 1.5 2007/02/12 18:42:49 mlhuang Exp $
   9 #
  10
  11 import sys
  12 import traceback
  13 import xmlrpclib
  14 from mod_python import apache
  15
  16 from PLC.Debug import log
  17
  18 from PLC.API import PLCAPI
  19 api = PLCAPI()
  20
  21 def handler(req):
  22     try:
  23         if req.method != "POST":
  24             req.content_type = "text/html"
  25             req.send_http_header()
  26             req.write("""
  27 <html><head>
  28 <title>PLCAPI XML-RPC/SOAP Interface</title>
  29 </head><body>
  30 <h1>PLCAPI XML-RPC/SOAP Interface</h1>
  31 <p>Please use XML-RPC or SOAP to access the PLCAPI.</p>
  32 </body></html>
  33 """)
  34             return apache.OK
  35
  36         # Read request
  37         request = req.read(int(req.headers_in['content-length']))
  38
  39         # mod_python < 3.2: The IP address portion of remote_addr is
  40         # incorrect (always 0.0.0.0) when IPv6 is enabled.
  41         # http://issues.apache.org/jira/browse/MODPYTHON-64?page=all
  42         (remote_ip, remote_port) = req.connection.remote_addr
  43         remote_addr = (req.connection.remote_ip, remote_port)
  44
  45         # Handle request
  46         response = api.handle(remote_addr, request)
  47
  48         # Shut down database connection, otherwise up to MaxClients DB
  49         # connections will remain open.
  50         api.db.close()
  51
  52         # Write response
  53         req.content_type = "text/xml; charset=" + api.encoding
  54         req.send_http_header()
  55         req.write(response)
  56
  57         return apache.OK
  58
  59     except Exception, err:
  60         # Log error in /var/log/httpd/(ssl_)?error_log
  61         print >> log, err, traceback.format_exc()
  62         return apache.HTTP_INTERNAL_SERVER_ERROR