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Login with Facebook using PHP SDK in CakePHP
Here we used PHP SDK 3.0 and CakePHP 2.X for the process of authentication and authorizing users for your app.
For Creating an App, which you can obtain from the App Dashboard.
You need App Id and App Secret for integration of the facebook login in cakephp.
In this CakePHP module we included the Facebook PHP SDK 3.0 in vendors of the app directory.And we define Some variables in Core.php
And We create one file which is facebook.php in config folder for the define of AppId and Appsecret.
$config=array('Facebook'=>array('appId'=>'YOUR APP ID','secret'=>'YOUR APP SECRET',));
We create one Controller which is FacebookCpsController.php
<?phpApp::uses('Controller','Controller');App::import('Vendor','Facebook',array('file'=>'Facebook'.DS.'facebook.php'));classFacebookCpsControllerextendsAppController {public$name='FacebookCps';public$uses=array();publicfunctionindex(){$this->layout=false;}functionlogin(){Configure::load('facebook');$appId=Configure::read('Facebook.appId');$app_secret=Configure::read('Facebook.secret');=newFacebook(array('appId'=>$appId,'secret'=>$app_secret,));$loginUrl=->getLoginUrl(array('scope'=>'email,read_stream, publish_stream, user_birthday, user_location, user_work_history, user_hometown, user_photos','redirect_uri'=> BASE_URL.'facebook_cps/facebook_connect','display'=>'popup'));$this->redirect($loginUrl);}functionfacebook_connect(){Configure::load('facebook');$appId=Configure::read('Facebook.appId');$app_secret=Configure::read('Facebook.secret');=newFacebook(array('appId'=>$appId,'secret'=>$app_secret,));$user=->getUser();if($user){try{$user_profile=->api('/me');$params=array('next'=> BASE_URL.'facebook_cps/facebook_logout');$logout=->getLogoutUrl($params);$this->Session->write('logout',$logout);}catch(FacebookApiException$e){error_log($e);$user= NULL;}}else{$this->Session->setFlash('Sorry.Please try again','default',array('class'=>'msg_req'));$this->redirect(array('action'=>'index'));}}functionfacebook_logout(){$this->Session->delete('User');$this->Session->delete('logout');$this->redirect(array('action'=>'index'));}}?>
Here We create two view files for the FacebookCpsController which are located in app/View/FacebookCps directory.
index.ctp
<!--DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><head><meta http-equiv="Content-Type"content="text/html; charset=utf-8"/><title>Login with Facebook In CakePHP</title><?phpecho$this->Html->script('oauthpopup'); ?><script type="text/javascript">$(document).ready(function(){$('#facebook').click(function(e){$.oauthpopup({path:'facebook_cps/login',width:600,height:300,callback:function(){window.location.reload();}});e.preventDefault();});});</script></head><body><?php$ses_user=$this->Session->read('User');$logout=$this->Session->read('logout');if(!$this->Session->check('User') &&empty($ses_user)) {echo$this->Html->image('facebook.png',array('id'=>'facebook','style'=>'cursor:pointer;float:left;margin-left:550px;'));}else{echo'<img src="https://graph.facebook.com/'.$ses_user['id'] .'/picture" width="30" height="30"/><div>'.$ses_user['name'].'</div>';echo'<a href="'.$logout.'">Logout</a>';}?></body></html>
facebook_connect.ctp
<script type="text/javascript">window.close();</script>
Here I used one jquery plugin oauthpopup.jswhich is used for popup
(this file is located in app/webroot/js directory)
oauthpopup.js
(function (jQuery) {
jQuery.oauthpopup = function (options) {
options.windowName = options.windowName || ‘ConnectWithOAuth’;
options.windowOptions = options.windowOptions || ‘location=0,status=0,width=’+options.width+’,height=’+options.height+’,scrollbars=1′;
options.callback = options.callback || function () {
window.location.reload();
};
var that = this;
that._oauthWindow = window.open(options.path, options.windowName, options.windowOptions);
that._oauthInterval = window.setInterval(function () {
if (that._oauthWindow.closed) {
window.clearInterval(that._oauthInterval);
options.callback();
}
}, 1000);
};
})(jQuery);
In the PHP SDK 3.0,we change the facebook.php file.For the Session We uses the CakePHP core data source which is CakeSession. facebook.php file is located at app/Vendor/Facebook directory
facebook.php
//included this line the above classApp::uses('CakeSession','Model/Datasource');publicfunction__construct($config) {if(!session_id()) {//insted of session_start() we used CakeSession::start()CakeSession::start();}parent::__construct($config);if(!empty($config['sharedSession'])) {$this->initSharedSession();}}
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