Add hacks for switching protocol and path but leaving host unchanged

Lib/urllib.py

@@ -350,13 +350,13 @@ class addinfo(addbase):
 
 def basejoin(base, url):
 	type, path = splittype(url)
-	if type: return url
 	host, path = splithost(path)
+	if type and host: return url
 	basetype, basepath = splittype(base)
 	basehost, basepath = splithost(basepath)
 	basepath, basetag = splittag(basepath)
 	basepath, basequery = splitquery(basepath)
-	type = basetype or 'file'
+	if not type: type = basetype or 'file'
 	if path[:1] != '/':
 		i = string.rfind(basepath, '/')
 		if i < 0: basepath = '/'

Lib/urlparse.py

@@ -88,6 +88,18 @@ def urljoin(base, url, allow_framents = 1):
 		  urlparse(base, '', allow_framents)
 	scheme, netloc, path, params, query, fragment = \
 		urlparse(url, bscheme, allow_framents)
+	# XXX Unofficial hack: default netloc to bnetloc even if
+	# schemes differ
+	if scheme != bscheme and not netloc and \
+	   scheme in uses_relative and bscheme in uses_relative and \
+	   scheme in uses_netloc and bscheme in uses_netloc:
+	   netloc = bnetloc
+	   # Strip the port number
+	   i = string.find(netloc, '@')
+	   if i < 0: i = 0
+	   i = string.find(netloc, ':', i)
+	   if i >= 0:
+		   netloc = netloc[:i]
 	if scheme != bscheme or scheme not in uses_relative:
 		return urlunparse((scheme, netloc, path,
 				   params, query, fragment))