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<?php namespace flow\social;

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

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use \SimpleXMLElement;

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/**

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* Flow-Flow.

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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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class FFRss extends FFHttpRequestFeed {

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protected $image;

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protected $media;

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protected $userLink;

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protected $screenName;

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protected $profileImage;

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/** @var bool */

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private $isRichText = false;

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/** @var bool */

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private $hideCaption = false;

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/** @var SimpleXMLElement | null $xml */

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private $xml = null;

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/** @var mixed $mrss */

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private $mrss = false;

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public function __construct( $type = null ) {

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if (is_null($type)) $type = 'rss';

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parent::__construct( $type );

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}

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public function deferredInit($feed) {

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$this->url = $feed->content;

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$this->isRichText = $feed->{'rich-text'};

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$this->hideCaption = $feed->{'hide-caption'};

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if (isset($feed->{'channel-name'})) $this->screenName = $feed->{'channel-name'};

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$this->profileImage = isset($feed->{'avatar-url'}) && trim($feed->{'avatar-url'}) != ''?

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$feed->{'avatar-url'} : $this->context['plugin_url'] . '/' . $this->context['slug'] . '/assets/avatar_default_rss.png';

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}

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protected function getUrl(){

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return $this->url;

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}

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protected function items($request){

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libxml_use_internal_errors(true);

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$pxml = new SimpleXMLElement($request);

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$this->xml = $pxml;

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$this->mrss = false;

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foreach ( $pxml->getNamespaces(true) as $key => $url ) {

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if ($url === 'http://search.yahoo.com/mrss/'){

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$this->mrss = $key;

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break;

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}

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}

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$result = array();

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if ($pxml && isset($pxml->channel)) {

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if (!isset($this->screenName) || strlen($this->screenName) == 0) {

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$this->screenName = (string)$pxml->channel->title;

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}

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if (isset($pxml->channel->link)){

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$this->userLink = $pxml->channel->link;

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}

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if (sizeof($pxml->channel->item) > $this->getCount())

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for ($i=0; $i < $this->getCount(); $i++) $result[] = $pxml->channel->item[$i];

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else

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$result = $pxml->channel->item;

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}

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libxml_clear_errors();

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libxml_use_internal_errors(false);

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return $result;

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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 getId($item){

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return hash('md5', isset($item->guid) ? (string)$item->guid : (string) $item->link);

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}

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protected function getScreenName($item){

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return $this->screenName;

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}

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protected function getProfileImage($item){

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return $this->profileImage;

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}

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protected function getSystemDate($item){

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if (isset($item->pubDate)) return strtotime($item->pubDate);

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$d = new \DateTime(); return $d->getTimestamp();

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}

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/**

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* @param SimpleXMLElement $item

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* @return string

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protected function getContent($item){

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if ($this->isRichText){

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$content = $item->children('content', true);

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foreach ($content->encoded as $encoded) {

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$content = $this->getRichText((string)$encoded);

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if (trim($content) != ''){

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return $content;

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}

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}

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return $this->getRichText((string)$item->description);

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}

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return FFFeedUtils::wrapLinks(strip_tags((string)$item->description));

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}

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protected function getHeader($item){

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return $this->hideCaption ? '' : $item->title;

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}

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protected function getUserlink($item){

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return $this->userLink;

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}

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protected function getPermalink($item){

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return $item->link;

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}

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/**

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* @param SimpleXMLElement $item

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* @return bool

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protected function showImage($item){

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if (isset($item->enclosure) && 'image/jpeg' == (string)$item->enclosure['type']){

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$this->image = $this->createImage((string)$item->enclosure['url']);

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$this->media = $this->createMedia($this->image['url'], $this->image['width'], $this->image['height']);

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return true;

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}

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else if ($this->mrss !== false){

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//$this->xml->channel->item[2]->children($namespaces['media'])->content->attributes()->height

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$namespaces = $this->xml->getNamespaces(true);

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$imageNode = isset($item->children($namespaces[$this->mrss])->thumbnail) ? $item->children($namespaces[$this->mrss])->thumbnail :

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(isset($item->children($namespaces[$this->mrss])->content) ? $item->children($namespaces[$this->mrss])->content : null);

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if ($imageNode) {

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/** @var SimpleXMLElement $attributes */

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$attributes = $imageNode->attributes();

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if (!is_null($attributes) && isset($attributes->url)){

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$url = (string) $attributes->url;

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if (isset($attributes->height) && isset($attributes->width)){

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$height = (string) $attributes->height;

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$width = (string) $attributes->width;

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

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$this->media = $this->createMedia($url, $width, $height);

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}

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else {

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$this->image = $this->createImage($url);

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$this->media = $this->createMedia($url, $this->image['width'], $this->image['height']);

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}

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return true;

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}

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}

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}

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return false;

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}

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protected function getImage($item){

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return $this->image;

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}

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protected function getMedia( $item ) {

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return $this->media;

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}

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private function getRichText($text){

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$text = preg_replace('/(<[^>]+) style=".*?"/i', '$1', $text);

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$text = preg_replace('/(<[^>]+) class=".*?"/i', '$1', $text);

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if (FF_USE_WP) $text = strip_shortcodes( $text );

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try {

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libxml_use_internal_errors(true);

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$doc = new \DOMDocument();

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$doc->encoding = 'utf-8';

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$text = mb_convert_encoding($text, 'HTML-ENTITIES', 'UTF-8');

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if (!empty($text) && $doc->loadHTML($text)){

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//$forRemove = array();

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//$images = $doc->getElementsByTagName('img');

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/*foreach ($images as $image){

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$objImage = ($image->hasAttribute('width') && $image->hasAttribute('height')) ?

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$this->createImage($image->getAttribute('src'), $image->getAttribute('width'), $image->getAttribute('height'), false) :

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$this->createImage($image->getAttribute('src'), null, null, false);

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if ($objImage['width'] > $this->getImageWidth()){

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$height = FFFeedUtils::getScaleHeight($this->getImageWidth(), $objImage['width'], $objImage['height']);

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$image->setAttribute('width', $this->getImageWidth());

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$image->setAttribute('height', $height);

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continue;

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}

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$forRemove[] = $image;

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}*/

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while (($r = $doc->getElementsByTagName("script")) && $r->length) {

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$r->item(0)->parentNode->removeChild($r->item(0));

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}

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/*foreach ($forRemove as $image){

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$parent = $image->parentNode;

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$parent->removeChild($image);

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if (($parent->tagName == 'a') && $parent->childNodes->length == 0){

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$grandParent = $parent->parentNode;

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$grandParent->removeChild($parent);

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}

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}*/

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$text = preg_replace('/^<!DOCTYPE.+?>/', '', str_replace( array('<html>', '</html>', '<body>', '</body>'), array('', '', '', ''), $doc->saveHTML()));

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}

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} catch (\Exception $e){

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$this->errors[] = array(

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'type' => 'pinterest',

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'message' => $this->filterErrorMessage($e->getMessage())

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);

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}

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return $text;

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}

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}

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