Merge pull request #223 from yekibud/master

restrict google login by white-listed domains

diff --cc social_auth/backends/google.py
index 5786938dc7d7e738f8b1dbd9adf1c8581197d04f,3f2d20254249b7f81c523119dd9a501b5fdfca6c..0daf57dc10b0f26452ada85a5427fe58049b0f70
--- 1/social_auth/backends/google.py
--- 2/social_auth/backends/google.py
+++ b/social_auth/backends/google.py
@@@ -44,7 -44,10 +44,9 @@@ GOOGLE_OAUTH_SCOPE = ['https://www.goog
  GOOGLEAPIS_EMAIL = 'https://www.googleapis.com/userinfo/email'
  GOOGLE_OPENID_URL = 'https://www.google.com/accounts/o8/id'
  
 -EXPIRES_NAME = getattr(settings, 'SOCIAL_AUTH_EXPIRATION', 'expires')
  
+ # white-listed domains (else accept all)
+ GOOGLE_WHITE_LISTED_DOMAINS = getattr(settings, 'GOOGLE_WHITE_LISTED_DOMAINS', [])
  
  # Backends
  class GoogleOAuthBackend(OAuthBackend):