I'm creating a webapp with this combination of tools. I'm authenticating with App Engine in the following manner:
class googleLogin(webapp.RequestHandler):
def get(self):
callbackURL = 'http://%s/googleLoginCallback' % getHost()
#Create a client service
gdClient = gdata.docs.service.DocsService()
gdata.alt.appengine.run_on_appengine(gdClient)
gdClient.SetOAuthInputParameters(gdata.auth.OAuthSignatureMethod.HMAC_SHA1,
_GoogleConsumerKey,
consumer_secret=_GoogleConsumerSecret)
#Get a Request Token
requestToken = gdClient.FetchOAuthRequestToken(scopes=_GoogleDataScope,
extra_parameters={'xoauth_displayname': APP_NAME})
#Persist token secret
self.session = Session()
self.session[TOKENSECRETKEY] = requestToken.secret
gdClient.auto_set_current_token = True
gdClient.SetOAuthToken(requestToken)
authUrl = gdClient.GenerateOAuthAuthorizationURL(callback_url=callbackURL)
self.redirect(authUrl)
I authenticated my domain with Google at https://www.google.com/accounts/ManageDomain, entering a target URL and am using the given Consumer Key/Secret. For instance, if my domain was 'juno.appspot.com', I am using http://juno.appspot.com as the target url path prefix.
The process is working; however, Google presents this message to the user in a yellow security box:
"The application that directed you here claims to be 'xxxxxx'. We are unable to verify this claim as the application runs on your computer, as opposed to a website. We recommend that you deny access unless you trust the application."
I don't think I should be getting this error, since my server is getting the request token and creating the authorization URL. Does anyone have any insight on how to get rid of this warning?
Google's domain registration has an option to upload a certificate, but I shouldn't need to do that because I'm using OAuth with the HMAC_SHA1 signature method.
Also, not that it should matter, but I'm doing all this through a UIWebView on the iPhone. I'm specifically trying to do all authentication server-side to avoid exposing my Consumer Key/Secret.
Thank you for any tips :)