XML-RPC in TurboGears
On-and-off I've looked for some way to get XML-RPC working in TurboGears. There's a CherryPy filter but I couldn't get it working. From what I've seen of the examples it makes all functions available to XML-RPC, which isn't something I wanted.
I finally gave up and rolled my own with xmlrpclib and using SimpleXMLRPCServer.py as a guide. It was simpler than trying to figure out the CherryPy mechanism, and simple enough that I'll list it here more as a recipe than a reusable module.
import sys import xmlrpclib import cherrypy import turbogears from turbogears import controllers class RPCRoot(controllers.Controller): @turbogears.expose() def index(self): params, method = xmlrpclib.loads(cherrypy.request.body.read()) try: if method == "index": # prevent recursion raise AssertionError("method cannot be 'index'") # Get the function and make sure it's exposed. method = getattr(self, method, None) # Use the same error message to hide private method names if method is None or not getattr(method, "exposed", False): raise AssertionError("method does not exist") # Call the method, convert it into a 1-element tuple # as expected by dumps response = method(*params) response = xmlrpclib.dumps((response,), methodresponse=1) except xmlrpclib.Fault, fault: # Can't marshal the result response = xmlrpclib.dumps(fault) except: # Some other error; send back some error info response = xmlrpclib.dumps( xmlrpclib.Fault(1, "%s:%s" % (sys.exc_type, sys.exc_value)) ) cherrypy.response.headers["Content-Type"] = "text/xml" return response # User-defined functions must use cherrypy.expose; turbogears.expose # does additional checking of the response type. @cherrypy.expose def add(self, a, b): return a+b class Root(controllers.RootController): RPC2 = RPCRoot()
Speaking of recipe, also tried to list it in the Python Cookbook but after several minutes waiting for the login to work I got the message "We are currently experiencing technical issues. Please try again shortly."
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