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POAgileToolkit OAuth add-on error 500 at facebook's mobile site
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copied!<p>I am using the OAuth Facebook controller add-on for ATK4. </p> <ul> <li>It works as expected when authenticating with Facebook from a regular desktop browser.</li> <li>It works when authenticating using a mobile browser that is telling face book that it's a desktop browser.</li> <li>It does not work when Facebook detects a mobile browser and redirects to m.facebook.com/dialog/oath.</li> </ul> <p>What's more, is that it works fine for signups from mobile browsers (ie, when Facebook asks the user to give permission to the app).</p> <p>The login flow stops with an Error 500 at: <a href="https://m.facebook.com/dialog/oauth?redirect_uri=" rel="nofollow">https://m.facebook.com/dialog/oauth?redirect_uri=</a>{my_url_encoded_landing_page_where_the_OAuth_controller_lives}&scope=email&client_id={fb_app_id}</p> <p><strike>What the hell is going on here? There isn't some difference between the Facebook mobile service and the regular one that the addon isn't taking care of, or is there?</strike></p> <p>It must be something I'm doing wrong. In init() on the page that handles the FB, I am doing the following:</p> <pre><code>function init(){ parent::init(); $f = $this->add("oauth/Controller_OAuth_Facebook", array('sign_method'=>'PLAINTEXT')); if ($fbtoken = $f->check()) { $f->setSignatureInfo(); $f->setAuthToken($fbtoken["access_token"], $fbtoken["expires"]); $s = $this->add("sni/Controller_SNI_Facebook"); $s->setOAuth($f); // ... // grab profile from SNI, database lookup, session stuff, etc // ... } } </code></pre> <p>I've tried all three sign_methods, and tried leaving it alone, but that doesn't make much difference because the user is not making it back to the controller with an access token to use anyway.</p> <p>I tried creating a new app with Facebook and I get the same issues with a basically vanilla configuration on that. I've only marked and specified the "Website with Facebook Login" site URL integration.</p> <p>The image below was captured from Chrome after overriding the user agent to a mobile device to trigger the forward to facebook's mobile servers: <a href="http://i.stack.imgur.com/RJTHx.png" rel="nofollow">Screen shot of request</a></p> <p>Facebook closed my bug report with them stating that it's not an issue since no one else is reporting the bug. I am removing the ATK4 tag, as I get the same issue using the example PHP code provided by Facebook on GIT.</p>

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