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publish.php
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publish.php
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<?php // $Id: publish.php,v 1.37 2009/11/22 16:47:45 bbannon Exp $
/**
* Description:
* Creates the iCal output for a single user's calendar so that remote users can
* "subscribe" to a WebCalendar calendar. Both Apple iCal and Mozilla's calendar
* support subscribing to remote calendars.
*
* Note that unlike the export to iCal, this page does not include
* attendee info. This improves the performance considerably, BTW.
*
* Notes:
* Does anyone know when a client (iCal, for example) refreshes its
* data, does it delete all old data and reload? Just wondering
* if we need to somehow send a delete notification on updates...
*
* Input parameters:
* URL should be the form of /xxx/publish.php/username.ics
* or /xxx/publish.php?user=username
*
* Security:
* DO NOT ALLOW if either;
* $PUBLISH_ENABLED is not 'Y' (set in Admin System Settings).
* $USER_PUBLISH_ENABLED is not 'Y' (set in each user's Preferences).
*/
include_once 'includes/translate.php';
require_once 'includes/classes/WebCalendar.class';
$WebCalendar = new WebCalendar( __FILE__ );
include 'includes/config.php';
include 'includes/dbi4php.php';
include 'includes/formvars.php';
include 'includes/functions.php';
$WebCalendar->initializeFirstPhase();
include 'includes/' . $user_inc;
include 'includes/validate.php';
include 'includes/site_extras.php';
include_once 'includes/xcal.php';
$WebCalendar->initializeSecondPhase();
// Calculate username.
// If using http_auth, use those credentials.
if ( $use_http_auth && empty ( $user ) )
$user = $login;
if ( empty ( $user ) ) {
$arr = explode ( '/', $PHP_SELF );
$user = $arr[count ( $arr )-1];
# remove any trailing ".ics" in user name
$user = preg_replace ( "/\.[iI][cC][sS]$/", '', $user );
}
if ( $user == 'publish.php' )
$user = '';
if ( $user == 'public' )
$user = '__public__';
load_global_settings();
$WebCalendar->setLanguage();
if ( empty ( $PUBLISH_ENABLED ) || $PUBLISH_ENABLED != 'Y' ) {
header ( 'Content-Type: text/plain' );
echo print_not_auth();
exit;
}
$errorStr = translate ( 'Error' );
$nouser = translate( 'No user specified.' );
// Make sure they specified a username.
if ( empty ( $user ) ) {
echo send_doctype ( $errorStr );
echo <<<EOT
</head>
<body>
<h2>{$errorStr}</h2>
{$nouser}.
</body>
</html>
EOT;
exit;
}
// Load user preferences (to get the USER_PUBLISH_ENABLED and
// DISPLAY_UNAPPROVED setting for this user).
$login = $user;
load_user_preferences();
if ( empty ( $USER_PUBLISH_ENABLED ) || $USER_PUBLISH_ENABLED != 'Y' ) {
header ( 'Content-Type: text/plain' );
echo print_not_auth();
exit;
}
// Load user name, etc.
user_load_variables ( $user, 'publish_' );
// header ( 'Content-Type: text/plain' );
header ( 'Content-Type: text/calendar' );
header ( 'Content-Disposition: attachment; filename="' . $user . '.ics"' );
$use_all_dates = true;
$type = 'publish';
export_ical();
?>