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POFacebook Connect and Codeigniter - HTTP/1.0 400 Bad Request
 

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  1. POFacebook Connect and Codeigniter - HTTP/1.0 400 Bad Request
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    <p>i'm struggling really hard to implement Facebook connect into my codeigniter application - I have one issue right now. After downloading the PHP SDK from here: <a href="https://github.com/facebook/php-sdk/" rel="nofollow">https://github.com/facebook/php-sdk/</a> I copied the /src files into my CI libraries (as everyone do : )). </p> <p>Now I want to authenticate my users using this method: </p> <p><a href="https://developers.facebook.com/docs/authentication/server-side/" rel="nofollow">https://developers.facebook.com/docs/authentication/server-side/</a></p> <p>My controller is here (I think the problem is at the end, but pasted full file, cause i'm not sure):</p> <pre><code>&lt;?php class Fb25 extends CI_Controller { function index() { $app_id = "MY APP ID"; $app_secret = "MY SECRET KEY"; $site_url = "http://devlocalhost.com/"; $this-&gt;load-&gt;library('facebook',array('appId' =&gt; $app_id, 'secret' =&gt; $app_secret)); $user = $this-&gt;facebook-&gt;getUser(); $data['user'] = $user; if($user){ $data['user_profile'] = $this-&gt;facebook-&gt;api('/me'); $user_profile = $data['user_profile']; } else{ $user = NULL; } if($user){ // Get logout URL $data['logoutUrl'] = $this-&gt;facebook-&gt;getLogoutUrl(array( 'next' =&gt; 'http://devlocalhost.com/', // URL to which to redirect the user after logging out )); }else{ // Get login URL $data['loginUrl'] = $this-&gt;facebook-&gt;getLoginUrl(array( 'scope' =&gt; 'email', // Permissions to request from the user 'redirect_uri' =&gt; 'http://devlocalhost.com/fb25/good', // URL to redirect the user to once the login/authorization process is complete. )); } if($user){ // Save your method calls into an array $data['queries'] = array( array('method' =&gt; 'GET', 'relative_url' =&gt; '/'.$user), array('method' =&gt; 'GET', 'relative_url' =&gt; '/'.$user.'/home?limit=50'), array('method' =&gt; 'GET', 'relative_url' =&gt; '/'.$user.'/friends'), array('method' =&gt; 'GET', 'relative_url' =&gt; '/'.$user.'/photos?limit=6'), ); // POST your queries to the batch endpoint on the graph. $batchResponse = $facebook-&gt;api('?batch='.json_encode($queries), 'POST'); //Return values are indexed in order of the original array, content is in ['body'] as a JSON //string. Decode for use as a PHP array. $data['user_info'] = json_decode($batchResponse[0]['body'], TRUE); $data['feed'] = json_decode($batchResponse[1]['body'], TRUE); $data['friends_list'] = json_decode($batchResponse[2]['body'], TRUE); $data['photos'] = json_decode($batchResponse[3]['body'], TRUE); } echo 'user_info: '.$data['user_info']; print_r($data); $this-&gt;load-&gt;view('fb25_view', $data); } public function good(){ $app_id = "MY APP ID"; $app_secret = "MY SECRET KEY"; $site_url = "http://devlocalhost.com/"; echo '&lt;br/&gt;&lt;br/&gt;SESJA:&lt;br/&gt;'; print_r($_SESSION); echo '&lt;br/&gt;&lt;br/&gt;GET:&lt;br/&gt;'; print_r($_GET); echo '&lt;br/&gt;&lt;br/&gt;REQUEST:&lt;br/&gt;'; print_r($_REQUEST); echo '&lt;br/&gt;&lt;br/&gt;najs&lt;br/&gt;&lt;br/&gt;'; session_start(); $code = $_GET["code"]; //@@@@@@IMO PROBLEM IS SOMEWHERE HERE: $token_url = "https://graph.facebook.com/oauth/access_token?" . "client_id=" . $app_id . "&amp;redirect_uri=" . urlencode($my_url) . "&amp;client_secret=" . $app_secret . "&amp;code=" . $code; $response = file_get_contents($token_url); $params = null; parse_str($response, $params); $graph_url = "https://graph.facebook.com/me?access_token=" . $params['access_token']; $user = json_decode(file_get_contents($graph_url)); echo("Hello " . $user-&gt;name); } } ?&gt; </code></pre> <p>My problem is: I'm pressing the login button and gets into facebook to authenticate myself, clicking "go to app" and want to go back into my website - it says:</p> <pre><code>Message: file_get_contents(https://graph.facebook.com/oauth/access_token? client_id=487560264592073&amp;redirect_uri=http%3A%2F%2Fdevlocalhost.com%2F&amp;client_secret=mysecretcode&amp;code=AQAgnmNWwDub9yaRB6Vf73gg8Xvwo8KhIM077lB67_bu1Z3rAvyk3Ckl54qK7hh9o3VkG0rFIBTfRXwtrSBFVWEpqYfm1o7e5CQg3jVctq-EE1ZxWrgWrfesLpQ2oF3wlmEMb5o6ORobGmibT06kqe5f2N0ch4kSYBJ4SiTcdV-612fGOJHGcipeyU_GJJ0Jvsg) [function.file-get-contents]: failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request </code></pre> <p><strong>UPDATE</strong></p> <p>Look here, please:</p> <p>I added function into your controller:</p> <pre><code>public function link(){ $fb_usr = $this-&gt;fb_connect-&gt;user; $firstname = $fb_usr['first_name']; $my_url="http://devlocal.pl"; echo 'user_id'; $token_url = "https://graph.facebook.com/oauth/access_token?" . "client_id=myclientid&amp;redirect_uri=" . urlencode($my_url) . "&amp;client_secret=mysecretcode&amp;code=" . $_GET['code']; redirect($token_url); </code></pre> <p>}</p> <p>To get my access token - without access token I can't get my username.. I made your loginbyfacebook function redirecting into link function. And it doesn't show the fb username.</p> <p>When I'm redirecting to my token_url It shows: </p> <pre><code>{ "error": { "message": "Error validating verification code.", "type": "OAuthException", "code": 100 } } </code></pre>
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