Change xmlrpclib to use the newer httplib interface.

Note that it's hard to test xmlrpclib, because the server it attempts
to connect to doesn't seem to support the expected interfaces.  Many
of the links via xmlrpc.com are dead, so I couldn't find another
server to use for tests.

Lib/xmlrpclib.py

@@ -137,6 +137,7 @@ Exported functions:
 """
 
 import re, time, operator
+import httplib
 
 # --------------------------------------------------------------------
 # Internal stuff
@@ -1110,18 +1111,10 @@ class Transport:
     def request(self, host, handler, request_body, verbose=0):
         # issue XML-RPC request
 
-        h = self.make_connection(host)
-        if verbose:
-            h.set_debuglevel(1)
+        http_conn = self.send_request(host, handler, request_body, verbose)
+        resp = http_conn.getresponse()
 
-        self.send_request(h, handler, request_body)
-        self.send_host(h, host)
-        self.send_user_agent(h)
-        self.send_content(h, request_body)
-
-        errcode, errmsg, headers = h.getreply()
-
-        if errcode != 200:
+        if resp.status != 200:
             raise ProtocolError(
                 host + handler,
                 errcode, errmsg,
@@ -1130,12 +1123,7 @@ class Transport:
 
         self.verbose = verbose
 
-        try:
-            sock = h._conn.sock
-        except AttributeError:
-            sock = None
-
-        return self._parse_response(h.getfile(), sock)
+        return self._parse_response(resp, None)
 
     ##
     # Create parser.
@@ -1181,59 +1169,35 @@ class Transport:
     # Connect to server.
     #
     # @param host Target host.
-    # @return A connection handle.
+    # @return An HTTPConnection object
 
     def make_connection(self, host):
         # create a HTTP connection object from a host descriptor
-        import httplib
         host, extra_headers, x509 = self.get_host_info(host)
-        return httplib.HTTP(host)
+
 
     ##
-    # Send request header.
+    # Send HTTP request.
     #
-    # @param connection Connection handle.
-    # @param handler Target RPC handler.
-    # @param request_body XML-RPC body.
+    # @param host Host descriptor (URL or (URL, x509 info) tuple).
+    # @param handler Targer RPC handler (a path relative to host)
+    # @param request_body The XML-RPC request body
+    # @param debug Enable debugging if debug is true.
+    # @return An HTTPConnection.
 
-    def send_request(self, connection, handler, request_body):
-        connection.putrequest("POST", handler)
-
-    ##
-    # Send host name.
-    #
-    # @param connection Connection handle.
-    # @param host Host name.
-
-    def send_host(self, connection, host):
+    def send_request(self, host, handler, request_body, debug):
         host, extra_headers, x509 = self.get_host_info(host)
-        connection.putheader("Host", host)
+        connection = httplib.HTTPConnection(host)
+        if debug:
+            connection.set_debuglevel(1)
+        headers = {}
         if extra_headers:
-            if isinstance(extra_headers, dict):
-                extra_headers = extra_headers.items()
-            for key, value in extra_headers:
-                connection.putheader(key, value)
-
-    ##
-    # Send user-agent identifier.
-    #
-    # @param connection Connection handle.
-
-    def send_user_agent(self, connection):
-        connection.putheader("User-Agent", self.user_agent)
-
-    ##
-    # Send request body.
-    #
-    # @param connection Connection handle.
-    # @param request_body XML-RPC request body.
-
-    def send_content(self, connection, request_body):
-        connection.putheader("Content-Type", "text/xml")
-        connection.putheader("Content-Length", str(len(request_body)))
-        connection.endheaders()
-        if request_body:
-            connection.send(request_body)
+            for key, val in extra_headers:
+                header[key] = val
+        headers["Content-Type"] = "text/xml"
+        headers["User-Agent"] = self.user_agent
+        connection.request("POST", handler, request_body, headers)
+        return connection
 
     ##
     # Parse response.
@@ -1284,19 +1248,24 @@ class SafeTransport(Transport):
 
     # FIXME: mostly untested
 
-    def make_connection(self, host):
-        # create a HTTPS connection object from a host descriptor
-        # host may be a string, or a (host, x509-dict) tuple
-        import httplib
-        host, extra_headers, x509 = self.get_host_info(host)
-        try:
-            HTTPS = httplib.HTTPS
-        except AttributeError:
+    def send_request(self, host, handler, request_body, debug):
+        import socket
+        if not hasattr(socket, "ssl"):
             raise NotImplementedError(
-                "your version of httplib doesn't support HTTPS"
-                )
-        else:
-            return HTTPS(host, None, **(x509 or {}))
+                "your version of httplib doesn't support HTTPS")
+
+        host, extra_headers, x509 = self.get_host_info(host)
+        connection = httplib.HTTPSConnection(host, None, **(x509 or {}))
+        if debug:
+            connection.set_debuglevel(1)
+        headers = {}
+        if extra_headers:
+            for key, val in extra_headers:
+                header[key] = val
+        headers["Content-Type"] = "text/xml"
+        headers["User-Agent"] = self.user_agent
+        connection.request("POST", handler, request_body, headers)
+        return connection
 
 ##
 # Standard server proxy.  This class establishes a virtual connection
@@ -1408,13 +1377,12 @@ if __name__ == "__main__":
     # server = ServerProxy("http://localhost:8000") # local server
     server = ServerProxy("http://time.xmlrpc.com/RPC2")
 
-    print(server)
-
     try:
         print(server.currentTime.getCurrentTime())
     except Error as v:
         print("ERROR", v)
 
+    # The server at xmlrpc.com doesn't seem to support multicall anymore.
     multi = MultiCall(server)
     multi.currentTime.getCurrentTime()
     multi.currentTime.getCurrentTime()