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<?php
namespace Wallabag\CoreBundle\Service;
use Wallabag\CoreBundle\Helper\Content;
use Wallabag\CoreBundle\Helper\Url;
final class Extractor
{
public static function extract($url) {
$pageContent = Extractor::getPageContent(new Url(base64_encode($url)));
$title = ($pageContent['rss']['channel']['item']['title'] != '') ? $pageContent['rss']['channel']['item']['title'] : _('Untitled');
$body = $pageContent['rss']['channel']['item']['description'];
$content = new Content();
$content->setTitle($title);
$content->setBody($body);;
return $content;
}
/**
* Get the content for a given URL (by a call to FullTextFeed)
*
* @param Url $url
* @return mixed
*/
public static function getPageContent(Url $url)
{
// Saving and clearing context
$REAL = array();
foreach( $GLOBALS as $key => $value ) {
if( $key != 'GLOBALS' && $key != '_SESSION' && $key != 'HTTP_SESSION_VARS' ) {
$GLOBALS[$key] = array();
$REAL[$key] = $value;
}
}
// Saving and clearing session
if (isset($_SESSION)) {
$REAL_SESSION = array();
foreach( $_SESSION as $key => $value ) {
$REAL_SESSION[$key] = $value;
unset($_SESSION[$key]);
}
}
// Running code in different context
$scope = function() {
extract( func_get_arg(1) );
$_GET = $_REQUEST = array(
"url" => $url->getUrl(),
"max" => 5,
"links" => "preserve",
"exc" => "",
"format" => "json",
"submit" => "Create Feed"
);
ob_start();
require func_get_arg(0);
$json = ob_get_contents();
ob_end_clean();
return $json;
};
// Silence $scope function to avoid
// issues with FTRSS when error_reporting is to high
// FTRSS generates PHP warnings which break output
$json = @$scope(__DIR__ . "/../../../../vendor/wallabag/Fivefilters_Libraries/makefulltextfeed.php", array("url" => $url));
// Clearing and restoring context
foreach ($GLOBALS as $key => $value) {
if($key != "GLOBALS" && $key != "_SESSION" ) {
unset($GLOBALS[$key]);
}
}
foreach ($REAL as $key => $value) {
$GLOBALS[$key] = $value;
}
// Clearing and restoring session
if (isset($REAL_SESSION)) {
foreach($_SESSION as $key => $value) {
unset($_SESSION[$key]);
}
foreach($REAL_SESSION as $key => $value) {
$_SESSION[$key] = $value;
}
}
return json_decode($json, true);
}
}
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