/**
  * Handle the 'approvefile' action, defined for ApprovedRevs -
  * mark the revision as approved, log it, and show a message to
  * the user.
  */
 public static function setFileAsApproved($action, $article)
 {
     // Return "true" if the call failed (meaning, pass on handling
     // of the hook to others), and "false" otherwise.
     if ($action != 'approvefile') {
         return true;
     }
     $title = $article->getTitle();
     if (!ApprovedRevs::mediaIsApprovable($title)) {
         return true;
     }
     if (!ApprovedRevs::userCanApprove($title)) {
         return true;
     }
     global $wgRequest;
     if (!$wgRequest->getCheck('ts') || !$wgRequest->getCheck('sha1')) {
         die('check query string');
         return true;
     }
     $revisionID = $wgRequest->getVal('ts');
     ApprovedRevs::SetApprovedFileInDB($title, $wgRequest->getVal('ts'), $wgRequest->getVal('sha1'));
     global $wgOut;
     $wgOut->addHTML("\t\t" . Xml::element('div', array('class' => 'successbox'), wfMessage('approvedrevs-approvesuccess')->text()) . "\n");
     $wgOut->addHTML("\t\t" . Xml::element('p', array('style' => 'clear: both')) . "\n");
     // show the revision, instead of the history page
     $article->doPurge();
     $article->view();
     return false;
 }