All, I couldn't get my xml-rpc script to work via a corporate proxy.
I noticed a few posts asking about this, and a very good helper script by jjk on starship. That script didn't work for me, and I think its a little old -- but it was very helpful to figure it out. The below script is a replacement/update to the earlier work. It is runnable as a test or usable as a module. Tests pass from behind and away from a proxy, on win32 and Linux i686, with Python 2.4.1. Comments welcome. Regards Andrew --- >8 --- >8 --- >8 --- >8 --- >8 --- >8 --- >8 #!/bin/env python """urllib2-based transport class for xmlrpclib.py (with test code). Written from scratch but inspired by xmlrpc_urllib_transport.py file from http://starship.python.net/crew/jjkunce/ by jjk. A. Ellerton 2006-07-06 Testing with Python 2.4 on Windows and Linux, with/without a corporate proxy in place. **************************** *** USE AT YOUR OWN RISK *** **************************** """ import xmlrpclib class ProxyTransport(xmlrpclib.Transport): """Provides an XMl-RPC transport routing via a http proxy. This is done by using urllib2, which in turn uses the environment varable http_proxy and whatever else it is built to use (e.g. the windows registry). NOTE: the environment variable http_proxy should be set correctly. See checkProxySetting() below. Written from scratch but inspired by xmlrpc_urllib_transport.py file from http://starship.python.net/crew/jjkunce/ by jjk. A. Ellerton 2006-07-06 """ def request(self, host, handler, request_body, verbose): import urllib2 self.verbose=verbose url='http://'+host+handler if self.verbose: "ProxyTransport URL: [%s]"%url request = urllib2.Request(url) request.add_data(request_body) # Note: 'Host' and 'Content-Length' are added automatically request.add_header("User-Agent", self.user_agent) request.add_header("Content-Type", "text/xml") # Important proxy_handler=urllib2.ProxyHandler() opener=urllib2.build_opener(proxy_handler) f=opener.open(request) return(self.parse_response(f)) def checkProxySetting(): """If the variable 'http_proxy' is set, it will most likely be in one of these forms (not real host/ports): proxyhost:8080 http://proxyhost:8080 urlllib2 seems to require it to have 'http;//" at the start. This routine does that, and returns the transport for xmlrpc. """ import os, re try: http_proxy=os.environ['http_proxy'] except KeyError: return # ensure the proxy has the 'http://' at the start # match = re.match("(http://)?([-_\.A-Za-z]+):(\d+)", http_proxy) if not match: raise Exception("Proxy format not recognised: [%s]" % http_proxy) os.environ['http_proxy'] = "http://%s:%s"; % (match.group(2), match.group(3)) #print "Determined proxy: %s" % os.environ['http_proxy'] return def test(): import sys, os def nextArg(): try: return sys.argv.pop(1) except: return None checkProxySetting() url=nextArg() or "http://betty.userland.com"; api=nextArg() or "examples.getStateName(32)" # "examples.getStateList([1,2])" try: server=xmlrpclib.Server(url, transport=ProxyTransport()) print "Url: %s" % url try: print "Proxy: %s" % os.environ['http_proxy'] except KeyError: print "Proxy: (Apparently none)" print "API: %s" % api r = eval("server.%s"%api) print "Result: ", r except xmlrpclib.ProtocolError, e: print "Connection error: %s" % e except xmlrpclib.Fault, e: print "Error: %s" % e if __name__=='__main__': # run with no parameters for basic test case. test() --- >8 --- >8 --- >8 --- >8 --- >8 --- >8 --- >8 -- http://mail.python.org/mailman/listinfo/python-list
