friendica/mod/starred.php

<?php
/**
 * @file mod/starred.php
 */
use Friendica\App;
use Friendica\Core\System;
use Friendica\Database\DBM;
use Friendica\Model\Item;

function starred_init(App $a) {
	$starred = 0;

	if (! local_user()) {
		killme();
	}
	if ($a->argc > 1) {
		$message_id = intval($a->argv[1]);
	}
	if (! $message_id) {
		killme();
	}

	$r = q("SELECT `starred` FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1",
		intval(local_user()),
		intval($message_id)
	);
	if (! DBM::is_result($r)) {
		killme();
	}

	if (! intval($r[0]['starred'])) {
		$starred = 1;
	}

	Item::update(['starred' => $starred], ['id' => $message_id]);

	// See if we've been passed a return path to redirect to
	$return_path = ((x($_REQUEST,'return')) ? $_REQUEST['return'] : '');
	if ($return_path) {
		$rand = '_=' . time();
		if (strpos($return_path, '?')) {
			$rand = "&$rand";
		} else {
			$rand = "?$rand";
		}

		goaway(System::baseUrl() . "/" . $return_path . $rand);
	}

	// the json doesn't really matter, it will either be 0 or 1

	echo json_encode($starred);
	killme();
}