<?php namespace flow\social;

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if ( ! defined( 'WPINC' ) ) die;

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use Exception;

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use flow\social\cache\LAFacebookCacheManager;

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use stdClass;

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/**

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* Flow-Flow.

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*

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* @package FlowFlow

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* @author Looks Awesome <email@looks-awesome.com>

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* @link http://looks-awesome.com

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* @copyright Looks Awesome

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*/

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class FFFacebook extends FFHttpRequestFeed implements LAFeedWithComments {

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const API_VERSION = 'v3.3';

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/** @var string | bool */

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private $accessToken;

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/** @var LAFacebookCacheManager */

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private $facebookCache;

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/** @var bool */

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private $hideStatus = true;

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private $image;

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private $media;

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private $carousel = [];

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private $images;

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private $new_post_ids;

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public function __construct() {

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parent::__construct( 'facebook' );

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}

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public function init( $context, $feed ) {

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parent::init( $context, $feed );

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$this->facebookCache = $this->context['facebook_cache'];

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}

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/**

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* @param $item

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*

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* @return array

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* @throws Exception, LASocialRequestException

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*/

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public function getComments($item) {

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if (is_object($item)){

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$result = [];

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if (isset($item->comments->data)){

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foreach ($item->comments->data as $comment){

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$result[] = $this->getComment($comment);

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}

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}

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return $result;

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}

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$objectId = $item;

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$accessToken = $this->facebookCache->getAccessToken();

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if ($this->accessToken === false){

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$this->errors[] = $this->facebookCache->getError();

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throw new Exception();

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}

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$api = FFFacebook::API_VERSION;

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$url = "https://graph.facebook.com/{$api}/{$objectId}/comments?total_count={$this->getCount()}&access_token={$accessToken}";

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$request = $this->getFeedData($url);

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$json = json_decode($request['response']);

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if (!is_object($json) || (is_object($json) && sizeof($json->data) == 0)) {

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if (isset($request['errors']) && is_array($request['errors'])){

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if (!empty($request['errors'])){

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foreach ( $request['errors'] as $error ) {

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$error['type'] = 'facebook';

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$this->errors[] = $error;

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throw new Exception();

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}

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}

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}

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else {

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$this->errors[] = ['type'=>'facebook', 'message' => 'Bad request, access token issue. <a href="http://docs.social-streams.com/article/55-400-bad-request" target="_blank">Troubleshooting</a>.', 'url' => $url];

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throw new Exception();

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}

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return [];

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}

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else {

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if($json->data){

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// return first 5 comments

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$data = array_slice($json->data, 0, 5);

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$result = [];

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foreach ($data as $item){

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$result[] = $this->getComment($item);

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}

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return $result;

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}else{

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$this->errors[] = [

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'type' => 'facebook',

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'message' => 'Comments issue',

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'url' => $url

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];

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throw new Exception();

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}

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}

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}

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protected function deferredInit($feed) {

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$this->images = [];

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if (isset($feed->{'timeline-type'})) {

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$timeline = $feed->{'timeline-type'} == 'user_timeline' ? 'page_timeline' : $feed->{'timeline-type'};

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$locale = defined('FF_LOCALE') ? 'locale=' . FF_LOCALE : 'locale=en_US';

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$api = FFFacebook::API_VERSION;

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switch ($timeline) {

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case 'group':

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case 'feed':

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$groupId = (string)$feed->content;

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$fields = 'fields=';

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$fields = $fields . 'likes.summary(true),comments.summary(true),shares,';

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$fields = $fields . 'id,created_time,from,message,picture,full_picture,attachments{media,subattachments},status_type,story';

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$this->url = "https://graph.facebook.com/{$api}/{$groupId}/feed?{$fields}&limit={$this->getCount()}&{$locale}";

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$this->hideStatus = false;

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break;

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case 'page_timeline':

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$page_id = (string)$feed->content;

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try {

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$request = $this->getFeedData("https://graph.facebook.com/{$api}/me/accounts?access_token={$this->accessToken}");

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$json = json_decode($request['response']);

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if($json->data) {

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foreach ( $json->data as $item ) {

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if (($page_id == $item->id) || ($page_id == $item->name)) {

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$this->accessToken = $item->access_token;

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$page_id = 'me';

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break;

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}

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}

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}

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}

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catch (LASocialRequestException $exception){

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error_log($exception->getMessage());

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}

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$fields = 'fields=';

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$fields = $fields . 'likes.summary(true),comments.summary(true),shares,permalink_url,';

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$fields = $fields . 'id,created_time,from,message,picture,full_picture,status_type,story';

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if ($page_id !== 'raffylochermanagement'){

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$fields = $fields . ',attachments';

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}

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$this->url = "https://graph.facebook.com/{$api}/{$page_id}/posts?{$fields}&limit={$this->getCount()}&{$locale}";

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$this->hideStatus = false;

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break;

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case 'album':

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$fields = 'fields=';

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$fields = $fields . 'likes.summary(true),comments.summary(true),';

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$fields = $fields . 'id,created_time,from,link,name,picture,source';

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$albumId = (string)$feed->content;

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$this->url = "https://graph.facebook.com/{$api}/{$albumId}/photos?{$fields}&limit={$this->getCount()}&{$locale}";

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$this->hideStatus = false;

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break;

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default:

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$fields = 'fields=';

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$fields = $fields . 'likes.summary(true),comments.summary(true),shares,';

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$fields = $fields . 'id,created_time,from,link,message,name,object_id,picture,full_picture,attachments{media,subattachments},source,status_type,story';

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$this->url = "https://graph.facebook.com/{$api}/me/home?{$fields}&limit={$this->getCount()}&{$locale}";

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}

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}

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}

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protected function beforeProcess() {

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$this->accessToken = $this->facebookCache->getAccessToken();

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if ($this->accessToken === false){

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$this->errors[] = $this->facebookCache->getError();

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return false;

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}

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$this->facebookCache->startCounter();

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return true;

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}

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protected function afterProcess( $result ) {

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$this->facebookCache->stopCounter();

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return parent::afterProcess( $result );

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}

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protected function getUrl() {

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return $this->getUrlWithToken($this->url);

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}

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protected function items( $request ) {

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$pxml = json_decode($request);

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if (isset($pxml->data)) {

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$ids = $this->facebookCache->getIdPosts($this->id());

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$new_ids = [];

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foreach ( $pxml->data as $item ) {

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$new_ids[] = $this->getId($item);

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}

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$this->new_post_ids = [];

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$diff = array_diff($new_ids, $ids);

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foreach ( $diff as $id ) {

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$this->new_post_ids[$id] = 1;

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}

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return $pxml->data;

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}

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return [];

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}

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protected function isSuitableOriginalPost( $post ) {

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if ($this->hideStatus) return false;

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if (isset($post->status_type) && $post->status_type == 'tagged_in_photo') return false;

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if (!isset($post->created_time)) return false;

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$hasLimit = $this->facebookCache->hasLimit();

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if (!$hasLimit){

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$this->errors[] = [

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'type' => 'facebook',

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'message' => 'Your site has hit the Facebook API rate limit. <a href="http://docs.social-streams.com/article/133-facebook-app-request-limit-reached" target="_blank">Troubleshooting</a>.'

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];

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}

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return $hasLimit;

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}

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protected function prepare( $item ) {

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$this->image = null;

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$this->media = null;

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return parent::prepare( $item );

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}

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protected function getHeader($item){

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if (isset($item->status_type) && $item->status_type == 'added_photos'){

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return '';

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}

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if (isset($item->name)){

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return $item->name;

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}

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return '';

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}

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protected function showImage($item){

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if (isset($item->status_type) && $item->status_type == 'added_video'){

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if (isset($item->attachments) && isset($item->attachments->data) && sizeof($item->attachments->data) > 0){

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$subattachments = $this->getSubattachments($item);

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if (sizeof($subattachments) > 0){

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$image= $subattachments[0];

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$width = $image->width;

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$height = $image->height;

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if ($width > 600) {

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$height = FFFeedUtils::getScaleHeight(600, $width, $height);

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$width = 600;

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}

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$this->image = $this->createImage($image->src, $width, $height);

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if (isset($item->attachments->data[0]->target)){

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$videoId = $item->attachments->data[0]->target->id;

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if (isset($item->from->id)){

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$this->media = $this->createMedia('https://www.facebook.com/plugins/video.php?app_id=&container_width=0&href=https%3A%2F%2Ffacebook.com%2F' . $item->from->id . '%2Fvideos%2F' . $videoId . '%2F&locale=en_US&sdk=joey' /* . '&appId=140463540033583' */, $width, $height, 'video');

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}

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else {

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$this->media = $this->createMedia('http://www.facebook.com/video/embed?video_id=' . $item->object_id, $width, $height, 'video');

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}

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}

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$this->carousel = $subattachments;

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return true;

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}

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}

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}

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[267] Fix | Delete

if (isset($item->attachments->data) && sizeof($item->attachments->data) > 0){

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$subattachments = $this->getSubattachments($item);

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if (sizeof($subattachments) > 0){

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$image = $subattachments[0];

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$this->image = $this->createImage($image->src, $image->width, $image->height);

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$this->media = $this->createMedia($image->src, $image->width, $image->height, 'image', true);

[273] Fix | Delete

$this->carousel = $subattachments;

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return true;

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}

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}

[277] Fix | Delete

[278] Fix | Delete

if (isset($item->source)){

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$this->image = $this->createImage($item->source);

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$this->media = $this->createMedia($item->source);

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return true;

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}

[283] Fix | Delete

[284] Fix | Delete

if (isset($item->full_picture)){

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$this->image = $this->createImage($item->full_picture);

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return true;

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}

[288] Fix | Delete

[289] Fix | Delete

return false;

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}

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[292] Fix | Delete

protected function getCarousel( $item ) {

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$carousel = parent::getCarousel($item);

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$subattachments = $this->carousel;

[295] Fix | Delete

[296] Fix | Delete

if (sizeof($subattachments) > 1){

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foreach ($subattachments as $image){

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$carousel[] = $this->createMedia($image->src, $image->width, $image->height);

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}

[300] Fix | Delete

// change 28.08.20

[301] Fix | Delete

// otherwise first pic is duplicated

[302] Fix | Delete

array_shift( $carousel );

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[304] Fix | Delete

}

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return $carousel;

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}

[307] Fix | Delete

[308] Fix | Delete

protected function getImage( $item ) {

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return $this->image;

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}

[311] Fix | Delete

[312] Fix | Delete

protected function getMedia( $item ) {

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return $this->media;

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}

[315] Fix | Delete

[316] Fix | Delete

protected function getScreenName($item){

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return $item->from->name;

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}

[319] Fix | Delete

[320] Fix | Delete

protected function getContent($item){

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if (isset($item->message)) return self::wrapHashTags(FFFeedUtils::wrapLinks($item->message), $item->id);

[322] Fix | Delete

if (isset($item->story)) return (string)$item->story;

[323] Fix | Delete

return '';

[324] Fix | Delete

}

[325] Fix | Delete

[326] Fix | Delete

protected function getProfileImage( $item ) {

[327] Fix | Delete

$url = "https://graph.facebook.com/" . FFFacebook::API_VERSION . "/{$item->from->id}/picture?width=80&height=80";

[328] Fix | Delete

if (!array_key_exists($url, $this->images)){

[329] Fix | Delete

$this->images[$url] = $this->getLocation($url);

[330] Fix | Delete

}

[331] Fix | Delete

return $this->images[$url];

[332] Fix | Delete

}

[333] Fix | Delete

[334] Fix | Delete

protected function getId( $item ) {

[335] Fix | Delete

return $item->id;

[336] Fix | Delete

}

[337] Fix | Delete

[338] Fix | Delete

protected function getSystemDate( $item ) {

[339] Fix | Delete

return strtotime($item->created_time);

[340] Fix | Delete

}

[341] Fix | Delete

[342] Fix | Delete

protected function getUserlink( $item ) {

[343] Fix | Delete

return 'https://www.facebook.com/'.$item->from->id;

[344] Fix | Delete

}

[345] Fix | Delete

[346] Fix | Delete

protected function getPermalink( $item ) {

[347] Fix | Delete

if (isset($item->link)){

[348] Fix | Delete

return $item->link;

[349] Fix | Delete

}

[350] Fix | Delete

if (isset($item->permalink_url)){

[351] Fix | Delete

return $item->permalink_url;

[352] Fix | Delete

}

[353] Fix | Delete

$parts = explode('_', $item->id);

[354] Fix | Delete

return 'https://www.facebook.com/'.$parts[0].'/posts/'.$parts[1];

[355] Fix | Delete

}

[356] Fix | Delete

[357] Fix | Delete

protected function getAdditionalInfo( $item ) {

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$additional = parent::getAdditionalInfo( $item );

[359] Fix | Delete

$additional['likes'] = (string)@$item->likes->summary->total_count;

[360] Fix | Delete

$additional['comments'] = isset($item->comments->summary->total_count) ? (string)@$item->comments->summary->total_count : '';

[361] Fix | Delete

$additional['shares'] = isset($item->shares) ? (string)@$item->shares->count : '0';

[362] Fix | Delete

return $additional;

[363] Fix | Delete

}

[364] Fix | Delete

[365] Fix | Delete

/**

[366] Fix | Delete

* @param string $text

[367] Fix | Delete

* @param string $id

[368] Fix | Delete

*

[369] Fix | Delete

* @return mixed

[370] Fix | Delete

*/

[371] Fix | Delete

private function wrapHashTags($text, $id){

[372] Fix | Delete

//return preg_replace('/#([\\d\\w]+)/', '<a href="https://www.facebook.com/hashtag/$1?source=feed_text&story_id='.$id.'">$0</a>', $text);//old

[373] Fix | Delete

/** @noinspection RegExpRedundantEscape */

[374] Fix | Delete

return preg_replace("/#([A-Za-z0-9ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖÙÚÛÜÝßàáâãäåæçèéêëìíîïðñòóôõöùúûüýÿ\/\.]*)/u", "<a href=\"https://www.facebook.com/hashtag/$1?source=feed_text&story_id='.$id.'\">#$1</a>", $text);

[375] Fix | Delete

}

[376] Fix | Delete

[377] Fix | Delete

private function getLocation($url, $with_token = true) {

[378] Fix | Delete

if (defined('FF_DONT_USE_GET_HEADERS') && FF_DONT_USE_GET_HEADERS){

[379] Fix | Delete

$location = @$this->getCurlLocation($this->getUrlWithToken( $url ));

[380] Fix | Delete

if (!empty($location) && $location != 0) {

[381] Fix | Delete

return $location;

[382] Fix | Delete

}

[383] Fix | Delete

}

[384] Fix | Delete

else {

[385] Fix | Delete

$headers = $this->getHeadersSafe($with_token ? $this->getUrlWithToken( $url ) : $url , 1);

[386] Fix | Delete

if (isset($headers["Location"])) {

[387] Fix | Delete

return $headers["Location"];

[388] Fix | Delete

} else {

[389] Fix | Delete

$location = @$this->getCurlLocation($with_token ? $this->getUrlWithToken( $url ) : $url);

[390] Fix | Delete

if (!empty($location) && $location != 0) {

[391] Fix | Delete

return $location;

[392] Fix | Delete

}

[393] Fix | Delete

}

[394] Fix | Delete

}

[395] Fix | Delete

[396] Fix | Delete

$location = str_replace('/v2.3/', '/', $url);

[397] Fix | Delete

$location = str_replace('/v2.4/', '/', $location);

[398] Fix | Delete

$location = str_replace('/v2.5/', '/', $location);

[399] Fix | Delete

$location = str_replace('/v2.6/', '/', $location);

[400] Fix | Delete

$location = str_replace('/v2.7/', '/', $location);

[401] Fix | Delete

$location = str_replace('/v2.8/', '/', $location);

[402] Fix | Delete

return $location;

[403] Fix | Delete

}

[404] Fix | Delete

[405] Fix | Delete

private function getCurlLocation($url) {

[406] Fix | Delete

$curl = curl_init();

[407] Fix | Delete

curl_setopt_array( $curl, [

[408] Fix | Delete

CURLOPT_USERAGENT => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36',

[409] Fix | Delete

CURLOPT_HEADER => true,

[410] Fix | Delete

CURLOPT_NOBODY => true,

[411] Fix | Delete

CURLOPT_RETURNTRANSFER => true,

[412] Fix | Delete

CURLOPT_URL => $url

[413] Fix | Delete

]);

[414] Fix | Delete

curl_setopt( $curl, CURLOPT_SSL_VERIFYPEER, false);

[415] Fix | Delete

curl_setopt( $curl, CURLOPT_CONNECTTIMEOUT_MS, 5000);

[416] Fix | Delete

curl_setopt( $curl, CURLOPT_TIMEOUT, 60);

[417] Fix | Delete

$headers = explode( "\n", curl_exec( $curl ) );

[418] Fix | Delete

curl_close( $curl );

[419] Fix | Delete

[420] Fix | Delete

$location = '';

[421] Fix | Delete

foreach ( $headers as $header ) {

[422] Fix | Delete

if (strpos($header, "ocation:")) {

[423] Fix | Delete

$location = substr($header, 10);

[424] Fix | Delete

break;

[425] Fix | Delete

}

[426] Fix | Delete

}

[427] Fix | Delete

return $location;

[428] Fix | Delete

}

[429] Fix | Delete

[430] Fix | Delete

private function getHeadersSafe($url, $format){

[431] Fix | Delete

if ( ini_get( 'allow_url_fopen' ) ) {

[432] Fix | Delete

return get_headers( $url, $format );

[433] Fix | Delete

} else {

[434] Fix | Delete

$ch = curl_init( $url );

[435] Fix | Delete

curl_setopt( $ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36');

[436] Fix | Delete

curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );

[437] Fix | Delete

curl_setopt( $ch, CURLOPT_HEADER, true );

[438] Fix | Delete

curl_setopt( $ch, CURLOPT_NOBODY, true );

[439] Fix | Delete

curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false);

[440] Fix | Delete

curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT_MS, 5000);

[441] Fix | Delete

curl_setopt( $ch, CURLOPT_TIMEOUT, 60);

[442] Fix | Delete

$content = curl_exec( $ch );

[443] Fix | Delete

curl_close( $ch );

[444] Fix | Delete

return [$content];

[445] Fix | Delete

}

[446] Fix | Delete

}

[447] Fix | Delete

[448] Fix | Delete

private function getUrlWithToken($url){

[449] Fix | Delete

$this->facebookCache->addRequest();

[450] Fix | Delete

[451] Fix | Delete

$token = $this->accessToken;

[452] Fix | Delete

return $url . "&access_token={$token}";

[453] Fix | Delete

}

[454] Fix | Delete

[455] Fix | Delete

private function getSubattachments($item){

[456] Fix | Delete

$attachments = [];

[457] Fix | Delete

if (isset($item->attachments) && isset($item->attachments->data) && sizeof($item->attachments->data) > 0){

[458] Fix | Delete

$data = $item->attachments->data[0];

[459] Fix | Delete

if (isset($data->media->image)){

[460] Fix | Delete

if (isset($item->status_type) && $item->status_type == 'shared_story'){

[461] Fix | Delete

$attachments[] = $data->media->image;

[462] Fix | Delete

return $attachments;

[463] Fix | Delete

}

[464] Fix | Delete

else $attachments[] = $data->media->image;

[465] Fix | Delete

}

[466] Fix | Delete

if (isset($data->subattachments) && isset($data->subattachments->data)){

[467] Fix | Delete

foreach ($data->subattachments->data as $el){

[468] Fix | Delete

$attachments[] = $el->media->image;

[469] Fix | Delete

}

[470] Fix | Delete

}

[471] Fix | Delete

}

[472] Fix | Delete

return $attachments;

[473] Fix | Delete

}

[474] Fix | Delete

[475] Fix | Delete

/**

[476] Fix | Delete

* TODO: check API in future, 'from' field was deprecated since Feb 2018

[477] Fix | Delete

*

[478] Fix | Delete

* @param $item

[479] Fix | Delete

*

[480] Fix | Delete

* @return stdClass

[481] Fix | Delete

*/

[482] Fix | Delete

private function getComment($item){

[483] Fix | Delete

$obj = new stdClass();

[484] Fix | Delete

$obj->id = $item->id;

[485] Fix | Delete

$obj->from = isset($item->from) ? $item->from : '';

[486] Fix | Delete

$obj->text = $item->message;

[487] Fix | Delete

$obj->created_time = $this->getSystemDate($item);

[488] Fix | Delete

return $obj;

[489] Fix | Delete

}

[490] Fix | Delete

[491] Fix | Delete

private function getPageId(){

[492] Fix | Delete

$accessToken = $this->facebookCache->getAccessToken();

[493] Fix | Delete

if ($this->accessToken === false){

[494] Fix | Delete

$this->errors[] = $this->facebookCache->getError();

[495] Fix | Delete

throw new Exception();

[496] Fix | Delete

}

[497] Fix | Delete

$api = FFFacebook::API_VERSION;

[498] Fix | Delete

$url = "https://graph.facebook.com/{$api}/me/accounts?access_token={$accessToken}";

[499] Fix | Delete