mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-10-05 09:42:30 +02:00
142 lines
4.7 KiB
PHP
142 lines
4.7 KiB
PHP
<?php
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/**
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* EGroupware - simple / non-CalDAV freebusy URL eg. exported as FBURL in vCard of users
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*
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* Usage:
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* - https://egw.example.org/egroupware/calendar/freebusy.php?user=%NAME%
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* - https://egw.example.org/egroupware/calendar/freebusy.php?email=%NAME%@%SERVER%
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* Authentication is required unless explicitly switched off in calendar preferences of the requested user:
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* + EGroupware "sessionid" cookie
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* + basic auth credentials of an EGroupware user
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* + "password" GET parameter with a configured password from the requested user's preferences
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* + "cred" GET parameter with base64 encoded "<username>:<password>" of an EGroupware user
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*
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* @link http://www.egroupware.org
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* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package calendar
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* @subpackage export
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*/
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use EGroupware\Api;
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$GLOBALS['egw_info'] = array(
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'flags' => array(
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'currentapp' => 'calendar',
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'noheader' => True,
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'nofooter' => True,
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),
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);
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// check if we are already logged in
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require_once __DIR__.'/../api/src/autoload.php';
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if (!($logged_in = !empty(Api\Session::get_sessionid())))
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{
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// support basic auth for regular user-credentials
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if (!empty($_SERVER['PHP_AUTH_PW']) || !empty($_SERVER['REDIRECT_HTTP_AUTHORIZATION']))
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{
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$GLOBALS['egw_info']['flags']['autocreate_session_callback'] = Api\Header\Authenticate::class.'::autocreate_session_callback';
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$logged_in = true; // header sends 401, if not authenticated
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}
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else
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{
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$GLOBALS['egw_info']['flags']['currentapp'] = 'login';
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$GLOBALS['egw_info']['flags']['noapi'] = True;
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}
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}
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include ('../header.inc.php');
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function fail_exit($msg)
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{
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echo "<html>\n<head>\n<title>$msg</title>\n<meta http-equiv=\"content-type\" content=\"text/html; charset=".
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Api\Translation::charset()."\" />\n</head>\n<body><h1>$msg</h1>\n</body>\n</html>\n";
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header('WWW-Authenticate: Basic realm="'.($GLOBALS['egw_info']['flags']['auth_realm'] ?: 'EGroupware').'"');
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http_response_code(401);
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exit;
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}
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if (!$logged_in)
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{
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include ('../api/src/loader.php');
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$GLOBALS['egw_info']['flags']['currentapp'] = 'calendar';
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}
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// fix for SOGo connector, which does not decode the = in our f/b url
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if (strpos($_SERVER['QUERY_STRING'],'=3D') !== false && substr($_GET['user'],0,2) == '3D')
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{
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foreach(['user', 'email', 'password', 'cred'] as $name)
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{
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if (isset($_GET[$name])) $_GET[$name] = substr($_GET[$name],2);
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}
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}
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if (isset($_GET['user']) && !is_numeric($user = $_GET['user']))
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{
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// check if user contains the current domain --> remove it
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list(, $domain) = explode('@', $user);
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if ($domain === $GLOBALS['egw_info']['user']['domain'])
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{
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list($user) = explode('@', $user);
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}
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$user = $GLOBALS['egw']->accounts->name2id($user, 'account_lid', 'u');
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}
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elseif (isset($_GET['email']))
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{
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$user = $GLOBALS['egw']->accounts->name2id($_GET['email'], 'account_email', 'u');
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}
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if ($user === false || !($username = $GLOBALS['egw']->accounts->id2name($user)))
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{
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fail_exit(lang("freebusy: unknown user '%1', wrong password or not available to not logged in users !!!"." $username($user)",$_GET['user']));
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}
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if (!$logged_in)
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{
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if (empty($_GET['cred']))
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{
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$GLOBALS['egw_info']['user']['account_id'] = $user;
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$GLOBALS['egw_info']['user']['account_lid'] = $username;
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$GLOBALS['egw']->preferences->account_id = $user;
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$GLOBALS['egw_info']['user']['preferences'] = $GLOBALS['egw']->preferences->read_repository();
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$cal_prefs = &$GLOBALS['egw_info']['user']['preferences']['calendar'];
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$logged_in = !empty($cal_prefs['freebusy']) &&
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(empty($cal_prefs['freebusy_pw']) || $cal_prefs['freebusy_pw'] == $_GET['password']);
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}
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else
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{
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$credentials = base64_decode($_GET['cred']);
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list($authuser, $password) = explode(':', $credentials, 2);
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if (strpos($authuser, '@') === false)
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{
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$domain = $GLOBALS['egw_info']['server']['default_domain'];
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$authuser .= '@' . $domain;
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}
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else
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{
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list(, $domain) = explode('@',$authuser, 2);
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}
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if (array_key_exists($domain, $GLOBALS['egw_domain']))
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{
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$_POST['login'] = $authuser;
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$_REQUEST['domain'] = $domain;
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$GLOBALS['egw_info']['server']['default_domain'] = $domain;
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$GLOBALS['egw_info']['user']['domain'] = $domain;
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$GLOBALS['egw_info']['flags']['currentapp'] = 'login';
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$GLOBALS['egw_info']['flags']['noapi'] = false;
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$logged_in = $GLOBALS['egw']->session->create($authuser, $password, 'text');
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session_unset();
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session_destroy();
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}
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}
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if (!$logged_in)
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{
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fail_exit(lang("freebusy: unknown user '%1', or not available for unauthenticated users!", $_GET['user']));
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}
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}
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if ($_GET['debug'])
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{
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echo "<pre>";
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}
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else
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{
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Api\Header\Content::type('freebusy.ifb','text/calendar');
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}
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$ical = new calendar_ical();
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echo $ical->freebusy($user, $_GET['end']);
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