#

# XML-RPC SERVER

# $Id: //modules/xmlrpclib/xmlrpc_handler.py#4 $

#

# an asynchronous XML-RPC server for Medusa

#

# written by Sam Rushing

#

# Based on "xmlrpcserver.py" by Fredrik Lundh (fredrik@pythonware.com)

#


import http_server # medusa components

import xmlrpclib

import regex
import string
import sys

class xmlrpc_handler:

    def match (self, request):
        # Note: /RPC2 is not required by the spec.  Feel free to

        # override this method if you want to use an other URL.

        if request.uri[:5] == '/RPC2':
            return 1
        else:
            return 0

    def handle_request (self, request):
        [path, params, query, fragment] = request.split_uri()

        if request.command in ('post', 'put'):
            request.collector = collector (self, request)
        else:
            request.error (400)

    def continue_request (self, data, request):
        params, method = xmlrpclib.loads (data)
        try:
            # generate response

            try:
                response = self.call (method, params)
                response = (response,)
            except:
                # report exception back to server

                response = xmlrpclib.dumps (
                    xmlrpclib.Fault (1, "%s:%s" % sys.exc_info()[:2])
                    )
            else:
                response = xmlrpclib.dumps (response, methodresponse=1)
        except:
            # internal error, report as HTTP server error

            request.error (500)
        else:
            # got a valid XML RPC response

            request['Content-Type'] = 'text/xml'
            request.push (response)
            request.done()

    def call (self, method, params):
        # override this method to implement RPC methods

        raise "NotYetImplemented"

class collector:

    "gathers input for POST and PUT requests"

    def __init__ (self, handler, request):

        self.handler = handler
        self.request = request
        self.data = ''

        # make sure there's a content-length header

        cl = request.get_header ('content-length')

        if not cl:
            request.error (411)
        else:
            cl = string.atoi (cl)
            # using a 'numeric' terminator

            self.request.channel.set_terminator (cl)

    def collect_incoming_data (self, data):
        self.data = self.data + data

    def found_terminator (self):
        # set the terminator back to the default

        self.request.channel.set_terminator ('\r\n\r\n')
        self.handler.continue_request (self.data, self.request)

if __name__ == '__main__':

    class rpc_demo (xmlrpc_handler):

        def call (self, method, params):
            print 'method="%s" params=%s' % (method, params)
            return "Sure, that works"

    import asyncore
    import http_server

    hs = http_server.http_server ('', 8000)
    rpc = rpc_demo()
    hs.install_handler (rpc)

    asyncore.loop()