| # |
| # rteval_xmlrpc.wsgi |
| # XML-RPC handler for the rteval server, using mod_wsgi |
| # |
| # Copyright 2011 - 2013 David Sommerseth <davids@redhat.com> |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License along |
| # with this program; if not, write to the Free Software Foundation, Inc., |
| # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| # |
| # For the avoidance of doubt the "preferred form" of this code is one which |
| # is in an open unpatent encumbered format. Where cryptographic key signing |
| # forms part of the process of creating an executable the information |
| # including keys needed to generate an equivalently functional executable |
| # are deemed to be part of the source code. |
| # |
| |
| from wsgiref.simple_server import make_server |
| import types |
| from xmlrpclib import dumps, loads, Fault |
| from xmlrpc_API1 import XMLRPC_API1 |
| from rteval.rtevalConfig import rtevalConfig |
| |
| def rtevalXMLRPC_Dispatch(method, args): |
| # Default configuration |
| defcfg = {'xmlrpc_server': { 'datadir': './var/lib/rteval', |
| 'db_server': 'localhost', |
| 'db_port': 5432, |
| 'database': 'rteval', |
| 'db_username': 'rtevxmlrpc', |
| 'db_password': 'rtevaldb' |
| } |
| } |
| |
| # Fetch configuration |
| cfg = rtevalConfig(defcfg) |
| cfg.Load(append=True) |
| |
| # Prepare an object for executing the query |
| xmlrpc = XMLRPC_API1(config=cfg.GetSection('xmlrpc_server')) |
| |
| # Exectute it |
| result = xmlrpc.Dispatch(method, args) |
| |
| # Send the result |
| if type(result) == types.TupleType: |
| return dumps(result, None, methodresponse=1) |
| else: |
| return dumps((result,), None, methodresponse=1) |
| |
| |
| def rtevalXMLRPC_handler(environ, start_response): |
| |
| # the environment variable CONTENT_LENGTH may be empty or missing |
| try: |
| request_body_size = int(environ.get('CONTENT_LENGTH', 0)) |
| except (ValueError): |
| request_body_size = 0 |
| |
| # When the method is POST the query string will be sent |
| # in the HTTP request body which is passed by the WSGI server |
| # in the file like wsgi.input environment variable. |
| try: |
| if (environ['REQUEST_METHOD'] != 'POST') or (request_body_size < 1): |
| raise Exception('Error in request') |
| |
| request_body = environ['wsgi.input'].read(request_body_size) |
| try: |
| args, method = loads(request_body) |
| except: |
| raise Exception('Invalid XML-RPC request') |
| |
| # Execute the XML-RPC call |
| status = '200 OK' |
| cont_type = 'text/xml' |
| response = [rtevalXMLRPC_Dispatch(method, args)] |
| except Exception, ex: |
| status = '500 Internal server error: %s' % str(ex) |
| cont_type = 'text/plain' |
| response = [ |
| '500 Internal server error\n', |
| 'ERROR: %s' % str(ex) |
| ] |
| import traceback, sys |
| traceback.print_exc(file=sys.stderr) |
| |
| response_headers = [('Content-Type', cont_type), |
| ('Content-Length', str(len("".join(response))))] |
| start_response(status, response_headers) |
| return response |
| |
| |
| if __name__ == '__main__': |
| # |
| # Simple stand-alone XML-RPC server, if started manually |
| # Not suitable for production environments, but for testing |
| # |
| httpd = make_server('localhost', 65432, rtevalXMLRPC_handler) |
| try: |
| httpd.serve_forever() |
| except KeyboardInterrupt: |
| print "\nShutting down" |
| |