Fix for issue jasonjoh#2

jasonjoh · jasonjoh · commit b935efb265f4 · 2015-08-17T12:01:33.000-04:00
Python 2.* returns an error when calling urlsafe_b64decode with a byte
string. It must be encoded as utf-8 before passing the string.
diff --git a/README.md b/README.md
@@ -264,7 +264,7 @@ Add a new function `get_user_email_from_id_token` to `authhelper.py`.
 	      encoded_token += '='
 	  
 	  # URL-safe base64 decode the token parts
-	  decoded = base64.urlsafe_b64decode(encoded_token).decode('utf-8')
+	  decoded = base64.urlsafe_b64decode(encoded_token.encode('utf-8').decode('utf-8')
 	  
 	  # Load decoded token into a JSON object
 	  jwt = json.loads(decoded)
diff --git a/tutorial/authhelper.py b/tutorial/authhelper.py
@@ -66,7 +66,9 @@ def get_user_email_from_id_token(id_token):
       encoded_token += '='
   
   # URL-safe base64 decode the token parts
-  decoded = base64.urlsafe_b64decode(encoded_token).decode('utf-8')
+  # NOTE: Per issue #2, added additional encode('utf-8') call on
+  # encoded_token so this call will work in Python 2.*
+  decoded = base64.urlsafe_b64decode(encoded_token.encode('utf-8')).decode('utf-8')
   
   # Load decoded token into a JSON object
   jwt = json.loads(decoded)
