add support for basic authentication, based on patch #624180

by Phillip J. Eby

Doc/lib/libxmlrpclib.tex

@@ -28,6 +28,13 @@ URLs and an internal HTTP \class{Transport} instance otherwise.  The
 optional third argument is an encoding, by default UTF-8. The optional
 fourth argument is a debugging flag.
 
+Both the HTTP and HTTPS transports support the URL syntax extension for
+HTTP Basic Authorization: \code{http://user:pass@host:port/path}.  The 
+\code{user:pass} portion will be base64-encoded as an HTTP `Authorization'
+header, and sent to the remote server as part of the connection process
+when invoking an XML-RPC method.  You only need to use this if the
+remote server requires a Basic Authentication user and password.
+
 The returned instance is a proxy object with methods that can be used
 to invoke corresponding RPC calls on the remote server.  If the remote
 server supports the introspection API, the proxy can also be used to query

Lib/xmlrpclib.py

@@ -43,6 +43,7 @@
 # 2002-04-16 fl  Added __str__ methods to datetime/binary wrappers
 # 2002-05-15 fl  Added error constants (from Andrew Kuchling)
 # 2002-06-27 fl  Merged with Python CVS version
+# 2002-10-22 fl  Added basic authentication (based on code from Phillip Eby)
 #
 # Copyright (c) 1999-2002 by Secret Labs AB.
 # Copyright (c) 1999-2002 by Fredrik Lundh.
@@ -1043,6 +1044,37 @@ class Transport:
         # get parser and unmarshaller
         return getparser()
 
+    ##
+    # Get authorization info from host parameter
+    # Host may be a string, or a (host, x509-dict) tuple; if a string,
+    # it is checked for a "user:pw@host" format, and a "Basic
+    # Authentication" header is added if appropriate.
+    #
+    # @param host Host descriptor (URL or (URL, x509 info) tuple).
+    # @return A 3-tuple containing (actual host, extra headers,
+    #     x509 info).  The header and x509 fields may be None.
+
+    def get_host_info(self, host):
+
+        x509 = {}
+        if isinstance(host, TupleType):
+            host, x509 = host
+
+        import urllib
+        auth, host = urllib.splituser(host)
+
+        if auth:
+            import base64
+            auth = base64.encodestring(auth)
+            auth = string.join(string.split(auth), "") # get rid of whitespace
+            extra_headers = [
+                ("Authorization", "Basic " + auth)
+                ]
+        else:
+            extra_headers = None
+
+        return host, extra_headers, x509
+
     ##
     # Connect to server.
     #
@@ -1052,6 +1084,7 @@ class Transport:
     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)
 
     ##
@@ -1071,7 +1104,13 @@ class Transport:
     # @param host Host name.
 
     def send_host(self, connection, host):
+        host, extra_headers, x509 = self.get_host_info(host)
         connection.putheader("Host", host)
+        if extra_headers:
+            if isinstance(extra_headers, DictType):
+                extra_headers = extra_headers.items()
+            for key, value in extra_headers:
+                connection.putheader(key, value)
 
     ##
     # Send user-agent identifier.
@@ -1147,22 +1186,15 @@ class SafeTransport(Transport):
         # create a HTTPS connection object from a host descriptor
         # host may be a string, or a (host, x509-dict) tuple
         import httplib
-        if isinstance(host, TupleType):
-            host, x509 = host
-        else:
-            x509 = {}
+        host, extra_headers, x509 = self.get_host_info(host)
         try:
             HTTPS = httplib.HTTPS
         except AttributeError:
-            raise NotImplementedError,\
-                  "your version of httplib doesn't support HTTPS"
+            raise NotImplementedError(
+                "your version of httplib doesn't support HTTPS"
+                )
         else:
-            return apply(HTTPS, (host, None), x509)
-
-    def send_host(self, connection, host):
-        if isinstance(host, TupleType):
-            host, x509 = host
-        connection.putheader("Host", host)
+            return apply(HTTPS, (host, None), x509 or {})
 
 ##
 # Standard server proxy.  This class establishes a virtual connection