Index: twisted/test/test_xmlrpc.py
===================================================================
RCS file: /cvs/Twisted/twisted/test/test_xmlrpc.py,v
retrieving revision 1.7
diff -u -r1.7 test_xmlrpc.py
--- twisted/test/test_xmlrpc.py	18 Jun 2003 16:31:20 -0000	1.7
+++ twisted/test/test_xmlrpc.py	13 Aug 2003 08:32:37 -0000
@@ -25,7 +25,7 @@
     class XMLRPC: pass
 else:
     from twisted.web import xmlrpc
-    from twisted.web.xmlrpc import XMLRPC
+    from twisted.web.xmlrpc import XMLRPC, XMLRPCIntrospection
 
 from twisted.trial import unittest
 from twisted.web import server
@@ -57,6 +57,9 @@
         return defer.fail(xmlrpc.Fault(17, "hi"))
 
 
+class TestIntrospection(Test, XMLRPCIntrospection): pass
+
+
 class XMLRPCTestCase(unittest.TestCase):
 
     def setUp(self):
@@ -95,3 +98,18 @@
     
     def proxy(self):
         return xmlrpc.Proxy("http://localhost:%d" % self.port)
+
+
+class XMLRPCTestIntrospection(XMLRPCTestCase):
+
+    def setUp(self):
+        self.p = reactor.listenTCP(0, server.Site(TestIntrospection()),
+                                   interface="127.0.0.1")
+        self.port = self.p.getHost()[2]
+
+    def testListMethods(self):
+        d = self.proxy().callRemote("system.listMethods")
+        list = unittest.deferredResult(d)
+        list.sort()
+        self.failUnlessEqual(list, ['add', 'defer', 'deferFail', 'deferFault',
+                                    'fail', 'fault', 'system.listMethods'])
Index: twisted/web/xmlrpc.py
===================================================================
RCS file: /cvs/Twisted/twisted/web/xmlrpc.py,v
retrieving revision 1.27
diff -u -r1.27 xmlrpc.py
--- twisted/web/xmlrpc.py	27 Jul 2003 00:04:14 -0000	1.27
+++ twisted/web/xmlrpc.py	13 Aug 2003 08:32:38 -0000
@@ -34,7 +34,7 @@
 # Sibling Imports
 from twisted.web import resource, server
 from twisted.internet import defer, protocol, reactor
-from twisted.python import log
+from twisted.python import log, reflect
 from twisted.protocols import http
 
 # These are deprecated, use the class level definitions
@@ -89,6 +89,7 @@
     Binary, Boolean, DateTime, Deferreds, or Handler instances.
 
     By default methods beginning with 'xmlrpc_' are published.
+    Periods ('.') are converted to double underscores.
     """
 
     # Error codes for Twisted, if they conflict with yours then
@@ -147,6 +148,7 @@
         policy is that given functionPath 'foo', return the method at
         self.xmlrpc_foo, i.e. getattr(self, "xmlrpc_" + functionPath).
         """
+        functionPath = functionPath.replace('.', '__')
         f = getattr(self, "xmlrpc_%s" % functionPath, None)
         if f and callable(f):
             return f
@@ -154,6 +156,16 @@
             raise NoSuchFunction
 
 
+class XMLRPCIntrospection:
+    """A mix-in that implements the XML-RPC Introspection API.
+
+    """
+
+    def xmlrpc_system__listMethods(self):
+        list = reflect.prefixedMethodNames(self.__class__, 'xmlrpc_')
+        return [ name.replace('__', '.') for name in list ]
+
+
 class QueryProtocol(http.HTTPClient):
 
     def connectionMade(self):
@@ -240,7 +252,8 @@
         factory = QueryFactory(self.url, self.host, method, *args)
         if self.secure:
             from twisted.internet import ssl
-            reactor.connectSSL(self.host, self.port or 443, factory, ssl.ClientContextFactory())
+            reactor.connectSSL(self.host, self.port or 443,
+                               factory, ssl.ClientContextFactory())
         else:
             reactor.connectTCP(self.host, self.port or 80, factory)
         return factory.deferred