Check for authorization response errors

1 files changed, 6 insertions, 3 deletions

diff --git a/oauthlib/oauth2/rfc6749/parameters.py b/oauthlib/oauth2/rfc6749/parameters.py
index 6b9d630..df724ee 100644
--- a/oauthlib/oauth2/rfc6749/parameters.py
+++ b/oauthlib/oauth2/rfc6749/parameters.py
@@ -264,12 +264,15 @@ def parse_authorization_code_response(uri, state=None):
     query = urlparse.urlparse(uri).query
     params = dict(urlparse.parse_qsl(query))
 
-    if not 'code' in params:
-        raise MissingCodeError("Missing code parameter in response.")
-
     if state and params.get('state', None) != state:
         raise MismatchingStateError()
 
+    if 'error' in params:
+        raise_from_error(params.get('error'), params)
+
+    if not 'code' in params:
+        raise MissingCodeError("Missing code parameter in response.")
+
     return params