<?php
require_once __DIR__ . '/vendor/autoload.php';
session_start();
$fb = new Facebook\Facebook(['app_id' => '495125297340244', 'app_secret' => 'c8fec76a911a11491b893e079bb91779', 'default_graph_version' => 'v2.5']);
$helper = $fb->getCanvasHelper();
$permissions = ['email', 'publish_actions'];
// optional
try {
if (isset($_SESSION['facebook_access_token'])) {
$accessToken = $_SESSION['facebook_access_token'];
} else {
$accessToken = $helper->getAccessToken();
}
} catch (Facebook\Exceptions\FacebookResponseException $e) {
// When Graph returns an error
echo 'Graph returned an error: ' . $e->getMessage();
exit;
} catch (Facebook\Exceptions\FacebookSDKException $e) {
// When validation fails or other local issues
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
if (isset($accessToken)) {
if (isset($_SESSION['facebook_access_token'])) {
$fb->setDefaultAccessToken($_SESSION['facebook_access_token']);
} else {
$_SESSION['facebook_access_token'] = (string) $accessToken;
// OAuth 2.0 client handler
$oAuth2Client = $fb->getOAuth2Client();
// Exchanges a short-lived access token for a long-lived one
/**
* Connection to facebook application
*
* @return \Facebook\Facebook
*/
private function connectApps()
{
$fb = new \Facebook\Facebook(['app_id' => $this->appID, 'app_secret' => $this->appSecret, 'default_graph_version' => $this->defaultGraphVersion]);
try {
$token = $fb->getCanvasHelper()->getAccessToken();
} catch (FacebookSDKException $e) {
throw new HttpException(500, 'Facebook Access Token returned an error: ' . $e->getMessage());
}
if ($token == null) {
$helper = $fb->getRedirectLoginHelper();
$scope = ['email', 'user_likes', 'publish_actions'];
$loginUrl = $helper->getLoginUrl('https://apps.facebook.com/' . $this->appID, $scope);
echo '<script>window.top.location.href = "' . $loginUrl . '"</script>';
} else {
$fb->setDefaultAccessToken($token);
}
$this->session->set('access_token', $token);
$this->session->set('fb', $fb);
return $fb;
}
