source: tags/2.1.5/services/lock.php

<?php
/**
 * The Strangecode Codebase - a general application development framework for PHP
 * For details visit the project site: <http://trac.strangecode.com/codebase/>
 * Copyright 2001-2010 Strangecode, LLC
 * 
 * This file is part of The Strangecode Codebase.
 *
 * The Strangecode Codebase is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 * 
 * The Strangecode Codebase is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * The Strangecode Codebase. If not, see <http://www.gnu.org/licenses/>.
 */

/**
 * lock.php
 */

// require_once dirname(__FILE__) . '/_config.inc.php';
require_once 'codebase/lib/Lock.inc.php';

$auth->requireLogin();
$app->sslOn();

if (getFormData('boomerang', false)) {
    // We remember which page we came from so we can go back there.
    $boom_url = mb_strpos(getFormData('boomerang'), '/') !== false ? getFormData('boomerang') : $_SERVER['HTTP_REFERER'];
    $app->setBoomerangURL($boom_url, 'lock');
    if (isset($_SERVER['HTTP_REFERER'])) {
        $app->setBoomerangURL($_SERVER['HTTP_REFERER'], 'cancel-lock');
    }
}

if (!isset($lock) || !is_a($lock, 'Lock')) {
    $lock =& Lock::getInstance($auth);
}
$lock->select(getFormData('lock_id'));

if (!$lock->isLocked()) {
    $app->logMsg('Lock not found with lock_id: ' . getFormData('lock_id') . ', from referrer: ' . $_SERVER['HTTP_REFERER'], LOG_WARNING, __FILE__, __LINE__);
    $app->dieBoomerangURL('lock');
}

// What action to take.
if (getFormData('unlock', false)) {
    $lock->remove();
    $app->raiseMsg(sprintf(_("The record <em>%s</em> has been unlocked, and can now be modified."), $lock->getTitle('title')), MSG_NOTICE, __FILE__, __LINE__);
    $app->dieBoomerangURL('lock');
} else if (getFormData('cancel', false)) {
    // Since the boomerang URL will go back to the locked record, and the record was not unlocked, we must delete the boomerang URL otherwise we'll come back here.
    $app->deleteBoomerangURL('lock');
    $app->dieBoomerangURL('cancel-lock');
}

// Titles and navigation header.
$nav->add(sprintf(_("Locked record: <em>%s</em>"), $lock->getTitle()));

// Templates.
include 'header.ihtml';
$lock->printErrorHTML();
include 'footer.ihtml';

?>