login.diff

mistakenot-2:appengine-toolkit md$ git diff
diff --git i/gaetk/handler.py w/gaetk/handler.py
index aeb7ebe..e50d63d 100755
--- i/gaetk/handler.py
+++ w/gaetk/handler.py
@@ -24,10 +24,12 @@ import base64
 import datetime
 import hashlib
 import os
+import string
 import time
 import urllib
 import urlparse
 import uuid
+import random
 import warnings
 
 from functools import partial
@@ -178,6 +180,10 @@ class BasicHandler(webapp2.RequestHandler):
             self.session = {}
         super(BasicHandler, self).__init__(*args, **kwargs)
         self.credential = None
+        if 'secret_state' not in self.session:
+            self.session['secret_state'] = ''.join(random.choice(string.ascii_uppercase + string.digits)
+                    for x in xrange(32))
+
 
     def abs_url(self, url):
         """Converts an relative into an absolute URL."""
diff --git i/gaetk/login.py w/gaetk/login.py
index 7e13820..14c7c51 100755
--- i/gaetk/login.py
+++ w/gaetk/login.py
@@ -136,9 +136,6 @@ class LoginHandler(BasicHandler):
 def get_oauth_url(session, request):
     # Create a state token to prevent request forgery.
     # Store it in the session for later validation.
-    state = ''.join(random.choice(string.ascii_uppercase + string.digits)
-                    for x in xrange(32))
-    session['oauth_state'] = state
     # Set the client ID, token state, and application name in the HTML while
     # serving it.
     url = config.OAUTH['web']['auth_uri']
@@ -147,7 +144,7 @@ def get_oauth_url(session, request):
         response_type="code",
         scope="openid email profile",
         redirect_uri=get_oauth_callback_url(request),
-        state=state,
+        state=session.get('secret_state', 'X'),
         # login_hint="[email protected]", TODO: gaetkoauthmail
     )
     if len(LOGIN_ALLOWED_DOMAINS) == 1:
@@ -202,9 +199,9 @@ class OAuth2Callback(BasicHandler):
         # https://dev-md-dot-hudoraexpress.appspot.com/oauth2callback?
 
         # 3. Confirm anti-forgery state token
-        if self.request.get('state') != self.session.get('oauth_state'):
+        if self.request.get('state') != self.session.get('secret_state', 'X'):
             raise RuntimeError("wrong state: %r != %r" % (
-                self.request.get('state'), self.session.get('oauth_state')))
+                self.request.get('state'), self.session.get('secret_state', 'X')))
         if LOGIN_ALLOWED_DOMAINS and self.request.get('hd') not in LOGIN_ALLOWED_DOMAINS:
             raise RuntimeError("wrong domain: %r not in %r" % (
                 self.request.get('hd'), LOGIN_ALLOWED_DOMAINS))