function execute($par)
{
global $wgRequest, $wgOut, $wgUser;
$this->setHeaders();
# Get request data from, e.g.
$pageId = $wgRequest->getText('pageId');
$revId = $wgRequest->getText('revId');
$receiver = $wgRequest->getText('receiver');
if (!$pageId || !$revId || !$receiver) {
$output = '<span class="error">' . htmlspecialchars(wfMsg('notificator-special-page-accessed-directly')) . '</span>';
} else {
$titleObj = Title::newFromID($pageId);
$pageTitle = $titleObj->getFullText();
$linkToPage = $titleObj->getFullURL();
if (!Notificator::receiverIsValid($receiver)) {
$output = '<span class="error">' . htmlspecialchars(wfMsg('notificator-e-mail-address-invalid') . ' ' . wfMsg('notificator-notification-not-sent')) . '</span>';
$output .= Notificator::getReturnToText($linkToPage, $pageTitle);
$wgOut->addHTML($output);
return;
}
$oldRevId = Notificator::getLastNotifiedRevId($pageId, $revId, $receiver);
if ($oldRevId >= 0) {
if ($oldRevId > 0) {
// Receiver has been notified before - send the diff to the last notified revision
$mailSubjectPrefix = '[' . htmlspecialchars(wfMsg('notificator-change-tag')) . '] ';
$wgOut->addModules('mediawiki.action.history.diff');
$diff = Notificator::getNotificationDiffHtml($oldRevId, $revId);
$notificationText = wfMsg('notificator-notification-text-changes', htmlspecialchars($wgUser->getName()), Html::element('a', array('href' => $linkToPage), $pageTitle)) . Html::rawElement('div', array('style' => 'margin-top: 1em'), $diff);
} else {
// Receiver has never been notified about this page - so don't send a diff, just the link
$mailSubjectPrefix = '[' . htmlspecialchars(wfMsg('notificator-new-tag')) . '] ';
$notificationText = wfMsg('notificator-notification-text-new', htmlspecialchars($wgUser->getName()), Html::element('a', array('href' => $linkToPage), $pageTitle));
}
$mailSubject = htmlspecialchars($mailSubjectPrefix . $pageTitle);
if (Notificator::sendNotificationMail($receiver, $mailSubject, $notificationText)) {
$output = '<strong>' . htmlspecialchars(wfMsg('notificator-following-e-mail-sent-to', $receiver)) . '</strong><div style="margin-top: 1em;"><h3>' . wfMsg('notificator-subject') . ' ' . $mailSubject . '</h3><p>' . $notificationText . '</p></div>';
Notificator::recordNotificationInDatabase($pageId, $revId, $receiver);
} else {
$output = '<span class="error">' . htmlspecialchars(wfMsg('notificator-error-sending-e-mail', $receiver)) . '</span>';
}
} elseif ($oldRevId == -1) {
$output = '<span class="error">' . htmlspecialchars(wfMsg('notificator-error-parameter-missing')) . '</span>';
} elseif ($oldRevId == -2) {
$output = '<strong>' . htmlspecialchars(wfMsg('notificator-notified-already', $receiver) . ' ' . wfMsg('notificator-notification-not-sent')) . '</strong>';
}
$output .= Notificator::getReturnToText($linkToPage, $pageTitle);
}
$wgOut->addHTML($output);
}
