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<?php
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/**
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* includestatsnumbercountry plugin
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* This plugin allows you to insert a statistics number to any joomla article. This is a
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* modified version that computes statistics per country.
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* Author: dimitra
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* License: GNU/GPL http://www.gnu.org/copyleft/gpl.html
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*/
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defined( '_JEXEC' ) or die( 'Direct Access to this location is not allowed.' );
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jimport( 'joomla.plugin.plugin' );
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jimport( 'joomla.log.log' );
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$GLOBALS['PREDIS_ROOT'] = dirname(__FILE__) . DS . 'predis';
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class plgContentIncludestatsnumberscountry extends JPlugin {
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private $cache;
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private $codes = array();
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private $db;
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public function __construct(&$subject, $config) {
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parent::__construct($subject, $config);
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JLog :: addLogger(array('text_file' => 'openaire.log'), JLog :: ALL, array('openaire'));
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if(!class_exists("Predis\Client")) {
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require $GLOBALS['PREDIS_ROOT'] . DS ."autoload.php";
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}
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try {
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$this->cache = new Predis\Client(array(
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"scheme" => $this->params->get('cachescheme'),
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"host" => $this->params->get('cacheserver'),
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"port" => $this->params->get('cacheport')));
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$this->cache->connect();
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} catch(Exception $e) {
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JLog :: add("Stats Plugin: Error connecting to Redis server: ".$e->getMessage(), JLog :: ERROR, 'openaire');
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$this->cache = null;
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}
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JLog :: add('Stats Plugin: Include country number Plugin!', JLog :: DEBUG, 'openaire');
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}
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public function onContentPrepare( $context, &$article, &$params, $page = 0 ) {
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$regex_base = '\{(include_countrynumber)\s+([[:alpha:]]+)\s+([[:alpha:]\s]+)\}';
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$regex = "/$regex_base/";
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$contents = $article->text;
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$found = preg_match_all($regex, $contents, $matches, PREG_SET_ORDER);
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//JLog::add("found matches in cache: " . print_r($matches, true), JLog::INFO, 'openaire');
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if (!$found) {
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return true;
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}
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foreach ($matches as $match) {
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try {
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$result = $this->getStatistic($match);
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$article->text = str_replace($match[0], $result, $article->text);
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} catch (Exception $e) {
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JLog :: add('Error getting log for: '. $match[0] . '. ' . $e->getMessage(), JLog :: ERROR, 'openaire');
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return false;
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}
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}
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return true;
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}
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private function getStatistic($match) {
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JLog::add("Stats Plugin: getting stats for match: " . $match[0], JLog::INFO, 'openaire');
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$res = 0;
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if ($this->cache != null) {
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if($this->cache->exists(base64_encode($match[0]))) {
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$res = $this->cache->hget(base64_encode($match[0]),'results');
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JLog::add(" Stats Plugin: $res: ". $res , JLog::INFO, 'openaire');
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$res= str_replace('[','',$res);
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$res= str_replace(']','',$res);
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JLog::add(" Stats Plugin: cleaned: ".$res , JLog::INFO, 'openaire');
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// return json_decode($t[0]);
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} else {
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$query=$this->getQuery($match[2], $match[3]);
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$res = $this->makeQuery($query);
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JLog::add("!!!decoded key: " .json_decode($res), JLog::INFO, 'openaire');
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JLog::add("Stats Plugin: added in cache -> key: " . base64_encode($match[0]) . " results " . $res . " query " . $query ." persistent 1 fetchMode 3", JLog::INFO, 'openaire');
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if (!$this->cache->hmset(base64_encode($match[0]),array("results" =>$res,"query" =>$query ,"persistent" => '1',"fetchMode" => '3'))){
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JLog::add("Stats Plugin: Error adding key: " . $match[0], JLog::ERROR, 'openaire');
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} else {
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$this->cache->save();
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}
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}
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} else {
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$query=$this->getQuery($match[2], $match[3]);
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$res = $this->makeQuery($query);
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$res= str_replace('[','',$res);
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$res= str_replace(']','',$res);
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}
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return $res;
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}
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private function getQuery($type, $country) {
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switch ($type) {
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case "PUB":
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$query = "select count (distinct rd.id) from result_datasources rd join datasource d on d.id=rd.datasource join organization_datasources od on od.datasource=d.id join organization o on o.id=od.id where o.country='" . $country . "'";
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break;
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case "DATASRC":
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$query = "select count(distinct d.id) from datasource d join datasource_results dr on dr.id=d.id join datasource_organizations dos on dos.id=d.id join organization o on o.id=dos.organization where o.country='" . $country . "'";
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break;
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}
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JLog::add("generated query for country stats: " . $query, JLog::INFO, 'openaire');
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return $query ;
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}
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private function makeQuery($query) {
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$res = 0;
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$str = 'pgsql:host='.$this->params->get('dbhost').';port='.$this->params->get('dbport').';dbname='.$this->params->get('dbname').';user='.$this->params->get('dbuser').';password='.$this->params->get('dbpass');
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$this->db = new PDO($str);
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JLog::add("Stats Plugin: Executing query: " . $query, JLog::INFO, 'openaire');
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$res = $this->doQuery($query);
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return $res;
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}
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private function doQuery($query){
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$stmt = $this->db->query($query);
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if (!$stmt) {
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$arr = $this->db->errorInfo();
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JLog :: add("Stats Plugin: Error executing query: ".$query." ".$arr[2], JLog :: ERROR, 'openaire');
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return "-";
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}
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$t = $stmt->fetch();
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return number_format($t[0]);
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}
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}
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?>
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