<?php
/*!
* HybridAuth
* http://hybridauth.sourceforge.net | http://github.com/hybridauth/hybridauth
* (c) 2009-2012, HybridAuth authors | http://hybridauth.sourceforge.net/licenses.html
*/
/**
* Hybrid_Providers_Facebook provider adapter based on OAuth2 protocol
*
* Hybrid_Providers_Facebook use the Facebook PHP SDK created by Facebook
*
* http://hybridauth.sourceforge.net/userguide/IDProvider_info_Facebook.html
*/
class Hybrid_Providers_Facebook extends Hybrid_Provider_Model
{
// default permissions, and alot of them. You can change them from the configuration by setting the scope to what you want/need
public $scope = "email, user_about_me, user_birthday, user_hometown, user_website, read_stream, offline_access, publish_stream, read_friendlists";
/**
* IDp wrappers initializer
*/
function initialize()
{
if ( ! $this->config["keys"]["id"] || ! $this->config["keys"]["secret"] ){
throw new Exception( "Your application id and secret are required in order to connect to {$this->providerId}.", 4 );
}
if ( ! class_exists('FacebookApiException', false) ) {
require_once Hybrid_Auth::$config["path_libraries"] . "Facebook/base_facebook.php";
require_once Hybrid_Auth::$config["path_libraries"] . "Facebook/facebook.php";
}
if ( isset ( Hybrid_Auth::$config["proxy"] ) ) {
BaseFacebook::$CURL_OPTS[CURLOPT_PROXY] = Hybrid_Auth::$config["proxy"];
}
$this->api = new Facebook( ARRAY( 'appId' => $this->config["keys"]["id"], 'secret' => $this->config["keys"]["secret"] ) );
if ( $this->token("access_token") ) {
$this->api->setAccessToken( $this->token("access_token") );
$this->api->setExtendedAccessToken();
$access_token = $this->api->getAccessToken();
if( $access_token ){
$this->token("access_token", $access_token );
$this->api->setAccessToken( $access_token );
}
$this->api->setAccessToken( $this->token("access_token") );
}
$this->api->getUser();
}
/**
* begin login step
*
* simply call Facebook::require_login().
*/
function loginBegin()
{
$parameters = array("scope" => $this->scope, "redirect_uri" => $this->endpoint, "display" => "page");
$optionals = array("scope", "redirect_uri", "display");
foreach ($optionals as $parameter){
if( isset( $this->config[$parameter] ) && ! empty( $this->config[$parameter] ) ){
$parameters[$parameter] = $this->config[$parameter];
}
}
// get the login url
$url = $this->api->getLoginUrl( $parameters );
// redirect to facebook
Hybrid_Auth::redirect( $url );
}
/**
* finish login step
*/
function loginFinish()
{
// in case we get error_reason=user_denied&error=access_denied
if ( isset( $_REQUEST['error'] ) && $_REQUEST['error'] == "access_denied" ){
throw new Exception( "Authentication failed! The user denied your request.", 5 );
}
// try to get the UID of the connected user from fb, should be > 0
if ( ! $this->api->getUser() ){
throw new Exception( "Authentication failed! {$this->providerId} returned an invalid user id.", 5 );
}
// set user as logged in
$this->setUserConnected();
// store facebook access token
$this->token( "access_token", $this->api->getAccessToken() );
}
/**
* logout
*/
function logout()
{
$this->api->destroySession();
parent::logout();
}
/**
* load the user profile from the IDp api client
*/
function getUserProfile()
{
// request user profile from fb api
try{
$data = $this->api->api('/me');
}
catch( FacebookApiException $e ){
throw new Exception( "User profile request failed! {$this->providerId} returned an error: $e", 6 );
}
// if the provider identifier is not recived, we assume the auth has failed
if ( ! isset( $data["id"] ) ){
throw new Exception( "User profile request failed! {$this->providerId} api returned an invalid response.", 6 );
}
# store the user profile.
$this->user->profile->identifier = (array_key_exists('id',$data))?$data['id']:"";
$this->user->profile->displayName = (array_key_exists('name',$data))?$data['name']:"";
$this->user->profile->firstName = (array_key_exists('first_name',$data))?$data['first_name']:"";
$this->user->profile->lastName = (array_key_exists('last_name',$data))?$data['last_name']:"";
$this->user->profile->photoURL = "https://graph.facebook.com/" . $this->user->profile->identifier . "/picture?width=150&height=150";
$this->user->profile->profileURL = (array_key_exists('link',$data))?$data['link']:"";
$this->user->profile->webSiteURL = (array_key_exists('website',$data))?$data['website']:"";
$this->user->profile->gender = (array_key_exists('gender',$data))?$data['gender']:"";
$this->user->profile->description = (array_key_exists('bio',$data))?$data['bio']:"";
$this->user->profile->email = (array_key_exists('email',$data))?$data['email']:"";
$this->user->profile->emailVerified = (array_key_exists('email',$data))?$data['email']:"";
$this->user->profile->region = (array_key_exists("hometown",$data)&&array_key_exists("name",$data['hometown']))?$data['hometown']["name"]:"";
if( array_key_exists('birthday',$data) ) {
list($birthday_month, $birthday_day, $birthday_year) = explode( "/", $data['birthday'] );
$this->user->profile->birthDay = (int) $birthday_day;
$this->user->profile->birthMonth = (int) $birthday_month;
$this->user->profile->birthYear = (int) $birthday_year;
}
return $this->user->profile;
}
/**
* load the user contacts
*/
function getUserContacts()
{
try{
$response = $this->api->api('/me/friends');
}
catch( FacebookApiException $e ){
throw new Exception( "User contacts request failed! {$this->providerId} returned an error: $e" );
}
if( ! $response || ! count( $response["data"] ) ){
return ARRAY();
}
$contacts = ARRAY();
foreach( $response["data"] as $item ){
$uc = new Hybrid_User_Contact();
$uc->identifier = (array_key_exists("id",$item))?$item["id"]:"";
$uc->displayName = (array_key_exists("name",$item))?$item["name"]:"";
$uc->profileURL = "https://www.facebook.com/profile.php?id=" . $uc->identifier;
$uc->photoURL = "https://graph.facebook.com/" . $uc->identifier . "/picture?width=150&height=150";
$contacts[] = $uc;
}
return $contacts;
}
/**
* update user status
*/
function setUserStatus( $status )
{
$parameters = array();
if( is_array( $status ) ){
$parameters = $status;
}
else{
$parameters["message"] = $status;
}
try{
$response = $this->api->api( "/me/feed", "post", $parameters );
}
catch( FacebookApiException $e ){
throw new Exception( "Update user status failed! {$this->providerId} returned an error: $e" );
}
}
/**
* load the user latest activity
* - timeline : all the stream
* - me : the user activity only
*/
function getUserActivity( $stream )
{
try{
if( $stream == "me" ){
$response = $this->api->api( '/me/feed' );
}
else{
$response = $this->api->api('/me/home');
}
}
catch( FacebookApiException $e ){
throw new Exception( "User activity stream request failed! {$this->providerId} returned an error: $e" );
}
if( ! $response || ! count( $response['data'] ) ){
return ARRAY();
}
$activities = ARRAY();
foreach( $response['data'] as $item ){
if( $stream == "me" && $item["from"]["id"] != $this->api->getUser() ){
continue;
}
$ua = new Hybrid_User_Activity();
$ua->id = (array_key_exists("id",$item))?$item["id"]:"";
$ua->date = (array_key_exists("created_time",$item))?strtotime($item["created_time"]):"";
if( $item["type"] == "video" ){
$ua->text = (array_key_exists("link",$item))?$item["link"]:"";
}
if( $item["type"] == "link" ){
$ua->text = (array_key_exists("link",$item))?$item["link"]:"";
}
if( empty( $ua->text ) && isset( $item["story"] ) ){
$ua->text = (array_key_exists("link",$item))?$item["link"]:"";
}
if( empty( $ua->text ) && isset( $item["message"] ) ){
$ua->text = (array_key_exists("message",$item))?$item["message"]:"";
}
if( ! empty( $ua->text ) ){
$ua->user->identifier = (array_key_exists("id",$item["from"]))?$item["from"]["id"]:"";
$ua->user->displayName = (array_key_exists("name",$item["from"]))?$item["from"]["name"]:"";
$ua->user->profileURL = "https://www.facebook.com/profile.php?id=" . $ua->user->identifier;
$ua->user->photoURL = "https://graph.facebook.com/" . $ua->user->identifier . "/picture?type=square";
$activities[] = $ua;
}
}
return $activities;
}
}