Hello again,

Let me be more specific that my previous mails. This will be changing. Let me emphasize that:

⚠ The new authenticate method will be changing in a way that breaks the current behavior.

At this point it is only a matter of time until I can get the new code reviewed and deployed. I would suggest people hold off on the authenticate method for the moment. I'll send more details once the code is reviewed and we're sure it won't be delayed for some reason.

Thanks;
  — Matt Sanford

On Apr 17, 2009, at 06:26 AM, djMax wrote:


I believe this flow is not secure (or not "as" secure) because that
URL that is "transmitted" via the browser is permanently reusable by
anyone to login to my service as that twitter user.  In the
authorization flow, I don't believe any such URL ever goes through the
browser.

So basically I think the Twitter folks need to change the last step in
the flow to be an exchange of a request token to the original access
token by the app on the backend...

On Apr 17, 8:01 am, Dossy Shiobara <do...@panoptic.com> wrote:
On 4/17/09 2:51 AM, Abraham Williams wrote:

They correct flow is:
1) get request token from twitter.
2) send user to twitter with oauth_token for the first time.

Send the user to Twitter how, though? oauth/authorize? How do you know
if this is the user's first time or not?

3) user returns and app uses request token to get user access token
which get stored.

This is fine, unless the user returns with an access token and not the
original request token.  This is what currently happens with
oauth/authenticate.

4) user come back to site to sign in and is not signed in.
5) site gets request token from twitter.
6) user is sent to twitter with request oauth_token and are
automatically redirected back to site.
7) access oauth_token is returned with user which can be matched with
oauth_token_secret stored in the database.

This would work fine, assuming in step #2 you had some way of knowing
whether a Twitter user had never previously OAuth authorized your app.

--
Dossy Shiobara              | do...@panoptic.com |http://dossy.org/
Panoptic Computer Network   |http://panoptic.com/
   "He realized the fastest way to change is to laugh at your own
     folly -- then you can let go and quickly move on." (p. 70)

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