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<?php
/**
* $Horde: nag/ics.php,v 1.4.2.2 2006/01/01 21:29:06 jan Exp $
*
* Copyright 1999-2006 Charles J. Hagenbuch <chuck@horde.org>
*
* See the enclosed file COPYING for license information (GPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/gpl.html.
*/
@define('AUTH_HANDLER', true);
@define('NAG_BASE', dirname(__FILE__));
require_once NAG_BASE . '/lib/base.php';
require_once 'Horde/Cache.php';
require_once 'Horde/iCalendar.php';
// Determine which tasklist to export.
$tasklist = Util::getFormData('t');
if (empty($tasklist) && !empty($_SERVER['PATH_INFO'])) {
$tasklist = basename($_SERVER['PATH_INFO']);
}
$share = $nag_shares->getShare($tasklist);
if (is_a($share, 'PEAR_Error')) {
header('HTTP/1.0 400 Bad Request');
echo '400 Bad Request';
exit;
}
// First try guest permissions.
if (!$share->hasPermission('', PERMS_READ)) {
// Authenticate.
$auth = &Auth::singleton($conf['auth']['driver']);
if (!isset($_SERVER['PHP_AUTH_USER'])
|| !$auth->authenticate($_SERVER['PHP_AUTH_USER'],
array('password' => isset($_SERVER['PHP_AUTH_PW']) ? $_SERVER['PHP_AUTH_PW'] : null))
|| !$share->hasPermission(Auth::getAuth(), PERMS_READ)) {
header('WWW-Authenticate: Basic realm="Nag iCalendar Interface"');
header('HTTP/1.0 401 Unauthorized');
echo '401 Unauthorized';
exit;
}
}
$cache = &Horde_Cache::singleton($conf['cache']['driver'], Horde::getDriverConfig('cache', $conf['cache']['driver']));
$key = 'nag.ics.' . $tasklist;
$ics = $cache->get($key, 360);
if (!$ics) {
$iCal = &new Horde_iCalendar();
$iCal->setAttribute('X-WR-CALNAME', $share->get('name'));
$storage = &Nag_Driver::singleton($tasklist);
$storage->retrieve();
$tasks = $storage->listTasks();
if (is_a($tasks, 'PEAR_Error')) {
Horde::fatal($tasks, __FILE__, __LINE__);
}
$identity = &$nag_shares->getIdentityByShare($share);
foreach ($tasks as $id => $task) {
$iCal->addComponent($storage->toiCalendar($task, $iCal, $identity));
}
$ics = $iCal->exportvCalendar();
$cache->set($key, $ics);
}
$browser->downloadHeaders($tasklist . '.ics', 'text/calendar', true, strlen($ics));
echo $ics;
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