Hi all,

I am trying to use my appspot application as oauth service provider. I
could see the service endpoints from 
http://code.google.com/appengine/docs/python/oauth/overview.html.

When i try to use the service endpoint 
http://myapp-id/appspot.com/_ah/OAuthAuthorizeToken?[params
here]

I am getting an error saying "Your client has issued a malformed or
illegal request."

I am passing the following params

oauth_consumer_key               myapp.appspot.com
oauth_nonce                     18415673360090530900
oauth_signature                 +2UIvA7C4mwXx58Fnk8p3bvvWFY=
oauth_signature_method  HMAC-SHA1
oauth_timestamp         1299051602
oauth_token                     4%2F9LqPIqAG2GgNPDJ9beWnS6be3qxQ
oauth_version                   1.0


I am not sure what is going wrong. Can someone kindly guide me what am
i missing?

Thanks,
Pradeep.

On Feb 7, 1:17 pm, Arun Shanker Prasad <[email protected]>
wrote:
> Hi All,
>
> Got everything working finally :-)
>
> The final issue was with the Content-Type header i was setting..
> changed that to 'text/plain' and everything was working smoothly.
>
> Thanks,
> Arun Shanker Prasad.
>
> On Jan 31, 9:41 pm, Arun Shanker Prasad <[email protected]>
> wrote:
>
>
>
>
>
>
>
> > Hi,
>
> > @Takashi and @yuvi, Thank You for your responses :)
>
> > I was able to complete the OAuth dance with my Google App Engine
> > application :D
>
> > But now I am faced with another issue when I try to access the API
> > URL :'(
>
> > I am sending the OAuth information via the Authorization header, but
> > when I try to do a 'get_current_user()' I am getting an
> > 'InvalidOAuthParametersError'..
>
> > I can't figure out which OAuth parameter is wrong :( I have looked at
> > all the documentation I can find and I am sending all the parameters
> > correctly..
>
> > Have you guys been able to use the 'get_current_user()' successfully?
> > If you can you please share what your header and request looks like?
>
> > I have posted my header info below, if you can find what I am doing
> > wrong then that would be great
>
> > Request Header: OAuth oauth_consumer_key="site.com",
> > oauth_nonce="80265015", oauth_signature="my_signature",
> > oauth_signature_method="HMAC-SHA1", oauth_timestamp="1296411891",
> > oauth_token="my_token", oauth_version="1.0"
>
> > On my server I get this in the error log
>
> > raise e
> > InvalidOAuthParametersError
>
> > Any help would be greatly appreciated.
>
> > Thanks,
> > Arun Shanker Prasad.
>
> > On Jan 29, 1:30 am, yuvi <[email protected]> wrote:
>
> > > Hi,
>
> > > I'm using it from an Opensocial Gadget and it seems to work OK. The
> > > only thing I have notice is that even
> > > when I use my Google account control panel to "Revoke access" the
> > > token is still working.
>
> > >https://www.google.com/accounts/b/0/IssuedAuthSubTokens
>
> > > On Jan 28, 6:40 pm, Takashi SASAKI <[email protected]> wrote:
>
> > > > Hi, Arun
>
> > > > I also making an OAuth consumer with Google App Engine for Python.
> > > > The consumer uses simplegeo oauth2 library.
> > > > Here is my code snippet to get access token
> > > > when called back just after authorization.
>
> > > > ....
> > > >             user_info.authorized_request_token =
> > > > self.request.get("oauth_token")
> > > >             user_info.verifier = self.request.get("oauth_verifier")
> > > >             assert(user_info.request_token ==
> > > > user_info.authorized_request_token)
> > > >             request_token =
> > > > oauth2.Token(user_info.request_token.__str__(),
> > > > user_info.request_token_secret.__str__())
> > > >             request_token.set_verifier(user_info.verifier.__str__()) #
> > > > may not needed
> > > >             request = oauth2.Request.from_consumer_and_token(consumer,
> > > > token=request_token, http_url = SP_ACCESS_TOKEN_URL)
> > > >             signature_method = oauth2.SignatureMethod_HMAC_SHA1()
> > > >             request.sign_request(signature_method, consumer,
> > > > request_token)
> > > >             #self.response.out.write(request.to_header())
> > > >             connection.request(request.method, SP_ACCESS_TOKEN_URL,
> > > > headers=request.to_header())
> > > >             response = connection.getresponse()
> > > >             response_read = response.read()
> > > >             access_token = oauth2.Token.from_string(response_read)
> > > >             user_info.access_token = access_token.key
> > > >             user_info.access_token_secret = access_token.secret
> > > >             user_info.put()
> > > > ....
>
> > > > I hope it helps you somewhat.
>
> > > > Takashi SASAKI (@TakashiSasaki on Twitter)
>
> > > > On 1月29日, 午前1:28, Arun Shanker Prasad <[email protected]>
> > > > wrote:
>
> > > > > Hi All,
>
> > > > > Background:
>
> > > > > I am trying to implement a web-service for my App Engine application
> > > > > and authenticate the user using OAuth. For this I chose to use my App
> > > > > Engine application as an OAuth service provider.
>
> > > > > My issue:
>
> > > > > I got the request token back from App Engine and I redirected my user
> > > > > to authorize the token and user grants access, everything is working
> > > > > fine up until this point. When I try to get the access token using the
> > > > > token and verifier provided by posting info to 'https://app-
> > > > > id.appspot.com/_ah/OAuthGetAccessToken', I am getting a 400 error back
> > > > > and does not have any information regarding what went wrong :(
>
> > > > > I had used GData OAuth before on my client application and had similar
> > > > > issues during development, but the response from Google's GData
> > > > > service had a bit more information as to what was wrong and I was able
> > > > > to get it working pretty easily.
>
> > > > > My question is has anyone tried using their App Engine application as
> > > > > an OAuth service provider? (I tried googling for a sample and was not
> > > > > able to find anything)
>
> > > > > I am using Google App Engine for Python.
>
> > > > > Thanks,
> > > > > Arun Shanker Prasad.

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