1 # XMLRPC-specific code for SFA Client
5 from sfa.util.sfalogging import sfa_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 class XMLRPCTransport(xmlrpclib.Transport):
31 def make_connection(self, host):
32 # create a HTTPS connection object from a host descriptor
33 # host may be a string, or a (host, x509-dict) tuple
35 host, extra_headers, x509 = self.get_host_info(host)
37 HTTPS = httplib.HTTPS()
38 # xxx sfa-1.0-10-broken - non-working attempt for python-2.7
39 # HTTPS = httplib.HTTPSConnection(host, None)
40 except AttributeError:
41 raise NotImplementedError(
42 "your version of httplib doesn't support HTTPS"
45 return httplib.HTTPS(host, None, key_file=self.key_file, cert_file=self.cert_file) #**(x509 or {}))
46 # xxx sfa-1.0-10-broken - non-working attempt for python-2.7
47 # return httplib.HTTPSConnection(host, None, key_file=self.key_file, cert_file=self.cert_file) #**(x509 or {}))
50 unmarshaller = ExceptionUnmarshaller()
51 parser = xmlrpclib.ExpatParser(unmarshaller)
52 return parser, unmarshaller
54 class XMLRPCServerProxy(xmlrpclib.ServerProxy):
55 def __init__(self, url, transport, allow_none=True, options=None):
57 if options and options.debug:
59 sfa_logger().info ("Connecting to xmlrpcserver at %s (with verbose=%s)"%(url,verbose))
60 xmlrpclib.ServerProxy.__init__(self, url, transport, allow_none=allow_none, verbose=verbose)
62 def __getattr__(self, attr):
63 sfa_logger().info ("Calling xml-rpc method:%s"%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)