make rebaseline_server properly handle unescaped URLs

gm/rebaseline_server/server.py

 #!/usr/bin/python
 
 """
 Copyright 2013 Google Inc.
 
 Use of this source code is governed by a BSD-style license that can be
 found in the LICENSE file.
 
 HTTP server for our HTML rebaseline viewer.
 """
@@ skipping 457 matching lines @@
             GET__STATIC_CONTENTS, GENERATED_HTML_SUBDIR))
         return
       if self.path == '/favicon.ico' :
         self.redirect_to('/%s/favicon.ico' % GET__STATIC_CONTENTS)
         return
 
       # All requests must be of this form:
       #   /dispatcher/remainder
       # where 'dispatcher' indicates which do_GET_* dispatcher to run
       # and 'remainder' is the remaining path sent to that dispatcher.
-      normpath = posixpath.normpath(self.path)
-      (dispatcher_name, remainder) = PATHSPLIT_RE.match(normpath).groups()
+      (dispatcher_name, remainder) = PATHSPLIT_RE.match(self.path).groups()
       dispatchers = {
           GET__LIVE_RESULTS: self.do_GET_live_results,
           GET__PRECOMPUTED_RESULTS: self.do_GET_precomputed_results,
           GET__PREFETCH_RESULTS: self.do_GET_prefetch_results,
           GET__STATIC_CONTENTS: self.do_GET_static,
       }
       dispatcher = dispatchers[dispatcher_name]
       dispatcher(remainder)
     except:
       self.send_error(404)
@@ skipping 330 matching lines @@
                    reload_seconds=args.reload, config_pairs=config_pairs,
                    builder_regex_list=args.builders, boto_file_path=args.boto,
                    imagediffdb_threads=args.threads)
   if args.truncate:
     _SERVER.truncate_results = True
   _SERVER.run()
 
 
 if __name__ == '__main__':
   main()