function onBeforeDisplayContent( &$article, &$params, $limitstart ){
//this may fire fron a component other than com_content
if(!file_exists(JPATH_SITE.DS.'plugins'.DS.'system'.DS.'myApiConnectFacebook.php') || ( !array_key_exists('category',$article) && !array_key_exists('showK2Plugins',$params) )){ return; }
if((@$article->id != '') && (@$_POST['fb_sig_api_key'] == '') && class_exists('plgSystemmyApiOpenGraph')){
$row = & JTable::getInstance('content');
$row->load($article->id);
$attribs = new JParameter($row->attribs);
if($attribs->get('ogimage','') == ''){
$attribs->set('ogimage',plgContentmyApiOpenGraphContent::getContentImage($article->text));
$row->attribs = $attribs->toString();
$row->bind($row);
$row->store();
}
//Set open graph tags
if(JRequest::getVar('view','','get') == 'article' || (JRequest::getVar('option','','get') == 'com_k2' && JRequest::getVar('view','','get') == 'item')){
if(isset($article->slug)){
require_once(JPATH_SITE.DS.'components'.DS.'com_content'.DS.'helpers'.DS.'route.php');
$link = ContentHelperRoute::getArticleRoute($article->slug, $article->catslug, $article->sectionid);
}elseif(method_exists('K2HelperRoute','getItemRoute')){
$link = K2HelperRoute::getItemRoute($article->id.':'.urlencode($article->alias),$article->catid.':'.urlencode($article->category->alias));
}else{
error_log('myApi unable to calculate link for the article id '.$article->id);
return;
}
$u =& JURI::getInstance( JURI::base().$link );
$port = ($u->getPort() == '') ? '' : ":".$u->getPort();
$articleURL = 'http://'.$u->getHost().$port.$u->getPath().'?'.$u->getQuery();
$rawText = strip_tags($article->introtext);
$newTags = array();
$newTags['og:title'] = $article->title;
$newTags['og:description'] = (strlen($rawText) > 247) ? substr($rawText,0,247).'...' : $rawText;
$newTags['og:type'] = 'article';
$newTags['og:author'] = (is_object($article->author)) ? $article->author->name : $article->author;
$newTags['og:url'] = $articleURL;
if($attribs->get('ogimage','0') != '0') $newTags['og:image'] = $attribs->get('ogimage');
plgSystemmyApiOpenGraph::setTags($newTags);
}
}
}
function plgSystemmyApiOpenGraph(&$subject, $config){
parent::__construct($subject, $config);
if(!class_exists('plgSystemmyApiConnect')) return;
$cache = & JFactory::getCache('plgSystemmyApiOpenGraph - FB Admins query');
$cache->setCaching( 1 );
$config =& JFactory::getConfig();
$connect_plugin =& JPluginHelper::getPlugin('system', 'myApiConnect');
$connect_params = new JParameter( $connect_plugin->params );
$plugin =& JPluginHelper::getPlugin('system', 'myApiOpenGraph');
$plugin_params = new JParameter( $plugin->params );
$db_admins = $cache->call( array( 'plgSystemmyApiOpenGraph', 'getFbAdmins'));
$param_admins = ($plugin_params->get('fbadmins') != '') ? explode(',',$plugin_params->get('fbadmins')) : array();
$admins = array_merge($db_admins,$param_admins);
$ogptags_default = array();
$ogptags_default['og:title'] = $config->getValue( 'config.sitename' );
$ogptags_default['og:type'] = 'website';
$ogptags_default['og:url'] = JURI::getInstance()->toString();
$ogptags_default['og:site_name'] = $config->getValue( 'config.sitename' );
$ogptags_default['fb:app_id'] = $connect_params->get('appId');
$ogptags_default['fb:admins'] = implode(',',$admins);
if($plugin_params->get('ogimage') != '' && $plugin_params->get('ogimage') != -1) $ogptags_default['og:image'] = JURI::base().'images/'.$plugin_params->get('ogimage');
if($plugin_params->get('fbpageid') != '') $ogptags_default['fb:page_id'] = $plugin_params->get('fbpageid');
plgSystemmyApiOpenGraph::setTags($ogptags_default);
}