Merge pull request #188 from webtic/master

Find URL encoded filenames on the fs by decoding them first

sanic/static.py

@@ -2,6 +2,7 @@ from aiofiles.os import stat
 from os import path
 from re import sub
 from time import strftime, gmtime
+from urllib.parse import unquote
 
 from .exceptions import FileNotFound, InvalidUsage
 from .response import file, HTTPResponse
@@ -32,12 +33,17 @@ def register(app, uri, file_or_directory, pattern, use_modified_since):
         # served.  os.path.realpath seems to be very slow
         if file_uri and '../' in file_uri:
             raise InvalidUsage("Invalid URL")
-
         # Merge served directory and requested file if provided
         # Strip all / that in the beginning of the URL to help prevent python
         # from herping a derp and treating the uri as an absolute path
-        file_path = path.join(file_or_directory, sub('^[/]*', '', file_uri)) \
-            if file_uri else file_or_directory
+        file_path = file_or_directory
+        if file_uri:
+            file_path = path.join(
+                file_or_directory, sub('^[/]*', '', file_uri))
+
+        # URL decode the path sent by the browser otherwise we won't be able to
+        # match filenames which got encoded (filenames with spaces etc)
+        file_path = unquote(file_path)
         try:
             headers = {}
             # Check if the client has been sent this file before