1 # XMLRPC-specific code for SFA Client
6 from sfa.util.sfalogging import logger
8 # ServerException, ExceptionUnmarshaller
10 # Used to convert server exception strings back to an exception.
11 # from usenet, Raghuram Devarakonda
13 class ServerException(Exception):
16 class ExceptionUnmarshaller(xmlrpclib.Unmarshaller):
19 return xmlrpclib.Unmarshaller.close(self)
20 except xmlrpclib.Fault, e:
21 raise ServerException(e.faultString)
26 # A transport for XMLRPC that works on top of HTTPS
28 # python 2.7 xmlrpclib has changed its internal code
29 # it now calls 'getresponse' on the obj returned by make_connection
30 # while it used to call 'getreply'
31 # regardless of the version, httplib.HTTPS does implement getreply,
32 # while httplib.HTTPSConnection has getresponse
33 # so we create a dummy instance to check what's expected
34 need_HTTPSConnection=hasattr(xmlrpclib.Transport().make_connection('localhost'),'getresponse')
36 class XMLRPCTransport(xmlrpclib.Transport):
39 def make_connection(self, host):
40 # create a HTTPS connection object from a host descriptor
41 # host may be a string, or a (host, x509-dict) tuple
42 host, extra_headers, x509 = self.get_host_info(host)
43 if need_HTTPSConnection:
44 return httplib.HTTPSConnection(host, None, key_file=self.key_file, cert_file=self.cert_file) #**(x509 or {}))
46 return httplib.HTTPS(host, None, key_file=self.key_file, cert_file=self.cert_file) #**(x509 or {}))
49 unmarshaller = ExceptionUnmarshaller()
50 parser = xmlrpclib.ExpatParser(unmarshaller)
51 return parser, unmarshaller
53 class XMLRPCServerProxy(xmlrpclib.ServerProxy):
54 def __init__(self, url, transport, allow_none=True, options=None):
55 # remember url for GetVersion
58 if options and options.debug:
60 xmlrpclib.ServerProxy.__init__(self, url, transport, allow_none=allow_none, verbose=verbose)
62 def __getattr__(self, attr):
63 logger.debug ("xml-rpc %s method:%s"%(self.url,attr))
64 return xmlrpclib.ServerProxy.__getattr__(self, attr)
67 def get_server(url, key_file, cert_file, options=None):
68 transport = XMLRPCTransport()
69 transport.key_file = key_file
70 transport.cert_file = cert_file
72 return XMLRPCServerProxy(url, transport, allow_none=True, options=options)