mirror of
https://github.com/EGroupware/egroupware.git
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585 lines
20 KiB
PHP
585 lines
20 KiB
PHP
<?php
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/**
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* EGroupware: GroupDAV access: groupdav/caldav/carddav principals handlers
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*
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* @link http://www.egroupware.org
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package api
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* @subpackage groupdav
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* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @copyright (c) 2008-11 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @version $Id$
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*/
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/**
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* EGroupware: GroupDAV access: groupdav/caldav/carddav principals handlers
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*
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* @todo All principal urls should either contain no account_lid (eg. base64 of it) or use urlencode($account_lid)
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*/
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class groupdav_principals extends groupdav_handler
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{
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/**
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* Reference to the accounts class
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*
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* @var accounts
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*/
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var $accounts;
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/**
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* Constructor
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*
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* @param string $app 'calendar', 'addressbook' or 'infolog'
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* @param int $debug=null debug-level to set
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* @param string $base_uri=null base url of handler
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* @param string $principalURL=null principal url of handler
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*/
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function __construct($app,$debug=null,$base_uri=null,$principalURL=null)
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{
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parent::__construct($app,$debug,$base_uri,$principalURL);
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$this->accounts = $GLOBALS['egw']->accounts;
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}
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/**
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* Handle propfind request for an application folder
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*
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* @param string $path
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* @param array $options
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* @param array &$files
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* @param int $user account_id
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* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
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*/
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function propfind($path,$options,&$files,$user)
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{
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// we do NOT support REPORTS on pricipals yet
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// required for Apple Addressbook on Mac (addressbook-findshared REPORT)
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if ($options['root']['name'] && $options['root']['name'] != 'propfind')
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{
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return '501 Not Implemented';
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}
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list(,$principals,$type,$name,$rest) = explode('/',$path,5);
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// /principals/users/$name/
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// /users/$name/calendar-proxy-read/
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// /users/$name/calendar-proxy-write/
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// /groups/$name/
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// /resources/$resource/
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// /__uids__/$uid/.../
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switch($type)
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{
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case 'users':
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$files['files'] = $this->propfind_users($name,$rest,$options);
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break;
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case 'groups':
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$files['files'] = $this->propfind_groups($name,$rest,$options);
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break;
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/*case 'resources':
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$files['files'] = $this->propfind_resources($name,$rest,$options);
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break;
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case '__uids__':
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$files['files'] = $this->propfind_uids($name,$rest,$options);
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break;*/
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case '':
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$files['files'] = $this->propfind_principals($options);
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break;
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default:
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return '404 Not Found';
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}
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if (!is_array($files['files']))
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{
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return $files['files'];
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}
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return true;
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}
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/**
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* Do propfind in /pricipals/users
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*
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* @param string $name name of account or empty
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* @param string $rest rest of path behind account-name
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* @param array $options
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* @return array|string array with files or HTTP error code
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*/
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protected function propfind_users($name,$rest,array $options)
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{
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error_log(__METHOD__."($name,$rest,".array2string($options).')');
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if (empty($name))
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{
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$files = array();
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// add /pricipals/users/ entry
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$files[] = $this->add_collection('/principals/users/');
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if ($options['depth'])
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{
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// add all users
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foreach($this->accounts->search(array('type' => 'accounts')) as $account)
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{
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$files[] = $this->add_account($account);
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}
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}
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}
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else
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{
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if (!($id = $this->accounts->name2id($name,'account_lid','u')) ||
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!($account = $this->accounts->read($id)))
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{
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return '404 Not Found';
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}
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while (substr($rest,-1) == '/') $rest = substr($rest,0,-1);
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switch((string)$rest)
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{
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case '':
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$files[] = $this->add_account($account);
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if ($options['depth'])
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{
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$files[] = $this->add_proxys('users/'.$account['account_lid'], 'calendar-proxy-read');
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$files[] = $this->add_proxys('users/'.$account['account_lid'], 'calendar-proxy-write');
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}
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break;
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case 'calendar-proxy-read':
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case 'calendar-proxy-write':
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$files = array();
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$files[] = $this->add_proxys('users/'.$account['account_lid'], $rest);
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break;
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default:
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return '404 Not Found';
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}
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}
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return $files;
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}
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/**
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* Do propfind in /pricipals/groups
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*
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* @param string $name name of group or empty
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* @param string $rest rest of path behind account-name
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* @param array $options
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* @return array|string array with files or HTTP error code
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*/
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protected function propfind_groups($name,$rest,array $options)
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{
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//echo "<p>".__METHOD__."($name,$rest,".array2string($options).")</p>\n";
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if (empty($name))
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{
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$files = array();
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// add /pricipals/users/ entry
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$files[] = $this->add_collection('/principals/groups/');
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if ($options['depth'])
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{
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// add all users
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foreach($this->accounts->search(array('type' => 'groups')) as $account)
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{
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$files[] = $this->add_group($account);
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}
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}
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}
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else
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{
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if (!($id = $this->accounts->name2id($name,'account_lid','g')) ||
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!($account = $this->accounts->read($id)))
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{
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return '404 Not Found';
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}
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while (substr($rest,-1) == '/') $rest = substr($rest,0,-1);
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switch((string)$rest)
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{
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case '':
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$files[] = $this->add_group($account);
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if ($options['depth'])
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{
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$files[] = $this->add_proxys('groups/'.$account['account_lid'], 'calendar-proxy-read');
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$files[] = $this->add_proxys('groups/'.$account['account_lid'], 'calendar-proxy-write');
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}
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break;
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case 'calendar-proxy-read':
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case 'calendar-proxy-write':
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$files = array();
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$files[] = $this->add_proxys('groups/'.$account['account_lid'], $rest);
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break;
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default:
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return '404 Not Found';
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}
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}
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return $files;
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}
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/**
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* Add collection of a single account to a collection
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*
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* @param array $account
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* @return array with values for keys 'path' and 'props'
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*/
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protected function add_account(array $account)
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{
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$addressbooks = $calendars = array();
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if ($account['account_id'] == $GLOBALS['egw_info']['user']['account_id'])
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{
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$prefs = $GLOBALS['egw_info']['user']['preferences']['groupdav'];
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$addressbook_home_set = $prefs['addressbook-home-set'];
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if (empty($addressbook_home_set)) $addressbook_home_set = 'P'; // personal addressbook
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$addressbook_home_set = explode(',',$addressbook_home_set);
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// replace symbolic id's with real nummeric id's
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foreach(array(
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'P' => $GLOBALS['egw_info']['user']['account_id'],
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'G' => $GLOBALS['egw_info']['user']['account_primary_group'],
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'U' => '0',
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) as $sym => $id)
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{
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if (($key = array_search($sym, $addressbook_home_set)) !== false)
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{
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$addressbook_home_set[$key] = $id;
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}
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}
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if (in_array('O',$addressbook_home_set)) // "all in one" from groupdav.php/addressbook/
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{
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$addressbooks[] = HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/');
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}
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foreach(ExecMethod('addressbook.addressbook_bo.get_addressbooks',EGW_ACL_READ) as $id => $label)
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{
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if ((in_array('A',$addressbook_home_set) || in_array((string)$id,$addressbook_home_set)) &&
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is_numeric($id) && ($owner = $GLOBALS['egw']->accounts->id2name($id)))
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{
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$addressbooks[] = HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/'.urlencode($owner).'/');
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}
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}
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$calendars[] = HTTP_WebDAV_Server::mkprop('href',
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$this->base_uri.'/'.$account['account_lid'].'/');
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/* iCal send propfind to wrong url (concatinated href's), if we return multiple href in calendar-home-set
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$cal_bo = new calendar_bo();
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foreach ($cal_bo->list_cals() as $label => $entry)
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{
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$id = $entry['grantor'];
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$owner = $GLOBALS['egw']->accounts->id2name($id);
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$calendars[] = HTTP_WebDAV_Server::mkprop('href',
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$this->base_uri.'/'.$owner.'/');
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}
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*/
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}
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else
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{
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$addressbooks[] = HTTP_WebDAV_Server::mkprop('href',
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$this->base_uri.'/'.$account['account_lid'].'/');
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$calendars[] = HTTP_WebDAV_Server::mkprop('href',
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$this->base_uri.'/'.$account['account_lid'].'/');
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}
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$displayname = translation::convert($account['account_fullname'], translation::charset(),'utf-8');
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return $this->add_principal('users/'.$account['account_lid'], array(
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HTTP_WebDAV_Server::mkprop('displayname',$displayname),
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HTTP_WebDAV_Server::mkprop('alternate-URI-set',array(
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HTTP_WebDAV_Server::mkprop('href','MAILTO:'.$account['account_email']))),
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HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-home-set',$calendars),
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HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-user-address-set',array(
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HTTP_WebDAV_Server::mkprop('href','MAILTO:'.$account['account_email']),
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HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/principals/users/'.$account['account_lid'].'/'),
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HTTP_WebDAV_Server::mkprop('href','urn:uuid:'.$account['account_lid']))),
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HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'schedule-outbox-URL',array(
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HTTP_WebDAV_Server::mkprop(groupdav::DAV,'href',$this->base_uri.'/calendar/'))),
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HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'email-address-set',array(
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HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'email-address',$account['account_email']))),
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HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'last-name',$account['account_lastname']),
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HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'first-name',$account['account_firstname']),
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HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'record-type','user'),
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HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-user-type','INDIVIDUAL'),
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HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'addressbook-home-set',$addressbooks),
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$this->principal_set('group-membership', $this->accounts->memberships($account['account_id']),
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'calendar', $account['account_id']), // add proxy-rights
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HTTP_WebDAV_Server::mkprop('supported-report-set',array(
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HTTP_WebDAV_Server::mkprop('supported-report',array(
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HTTP_WebDAV_Server::mkprop('report',array(
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HTTP_WebDAV_Server::mkprop('acl-principal-prop-set'))))))),
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), array(), $this->get_etag($account));
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}
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/**
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* Add collection of a single group to a collection
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*
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* @param array $account
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* @return array with values for keys 'path' and 'props'
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*/
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protected function add_group(array $account)
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{
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$displayname = translation::convert(lang('Group').' '.$account['account_lid'], translation::charset(), 'utf-8');
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return $this->add_principal('groups/'.$account['account_lid'], array(
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HTTP_WebDAV_Server::mkprop('displayname',$displayname),
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HTTP_WebDAV_Server::mkprop('alternate-URI-set',''),
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HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-home-set',array(
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HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/'.$account['account_lid'].'/'))),
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HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'addressbook-home-set',array(
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HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/'.$account['account_lid'].'/'))),
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HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'record-type','group'),
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HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-user-type','GROUP'),
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$this->principal_set('group-member-set', $this->accounts->members($account['account_id'])),
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), array(), $this->get_etag($account));
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}
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/**
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* Add a collection
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*
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* @param string $path
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* @param array $props=array() extra properties 'resourcetype' is added anyway
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* @param array $additional_resource_types=array() additional resource-types, collection and principal are always added
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* @param string $etag=''
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* @return array with values for keys 'path' and 'props'
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*/
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protected function add_collection($path, array $props = array(), array $additional_resource_types=array(), $etag='')
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{
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// resourcetype: collection + $additional_resource_types
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$props[] = HTTP_WebDAV_Server::mkprop('resourcetype',array_merge(array(
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HTTP_WebDAV_Server::mkprop('collection',''),
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),$additional_resource_types));
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// props for all collections: current-user-principal and principal-collection-set
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$props[] = HTTP_WebDAV_Server::mkprop('current-user-principal',array(
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HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/principals/users/'.$GLOBALS['egw_info']['user']['account_lid'].'/')));
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$props[] = HTTP_WebDAV_Server::mkprop('principal-collection-set',array(
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HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/principals/')));
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// required per WebDAV standard
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$props[] = HTTP_WebDAV_Server::mkprop('getcontentlength', '');
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$props[] = HTTP_WebDAV_Server::mkprop('getlastmodified', '');
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$props[] = HTTP_WebDAV_Server::mkprop('getcontenttype', '');
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$props[] = HTTP_WebDAV_Server::mkprop('getetag', $etag);
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if ($this->debug > 1) error_log(__METHOD__."(path='$path', props=".array2string($props).')');
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return array(
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'path' => $path,
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'props' => $props,
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);
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}
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/**
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* Add a principal collection
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*
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* @param string $principal relative to principal-collection-set, eg. "users/username"
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* @param array $props=array() extra properties 'resourcetype' is added anyway
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* @param array $additional_resource_types=array() additional resource-types, collection and principal are always added
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* @param string $principal_url=null include given principal url, relative to principal-collection-set
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* @param string $etag=''
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* @return array with values for keys 'path' and 'props'
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*/
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protected function add_principal($principal, array $props = array(), array $additional_resource_types=array(), $etag='')
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{
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$additional_resource_types[] = HTTP_WebDAV_Server::mkprop('principal', '');
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if (!$principal_url) $principal_url = $principal;
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$props[] = HTTP_WebDAV_Server::mkprop('principal-URL',array(
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HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/principals/'.$principal.'/')));
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return $this->add_collection('/principals/'.$principal.'/', $props, $additional_resource_types, $etag);
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}
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/**
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* Add a proxy collection for given principal and type
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*
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* A proxy is a user or group who has the right to act on behalf of the user
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*
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* @param string $principal relative to principal-collection-set, eg. "users/username"
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* @param string $type eg. 'calendar-proxy-read' or 'calendar-proxy-write'
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* @param array $proxys=array()
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* @return array with values for 'path' and 'props'
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*/
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protected function add_proxys($principal, $type, array $proxys=array())
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{
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list($app,,$what) = explode('-', $type);
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$right = $what == 'write' ? EGW_ACL_EDIT : EGW_ACL_READ;
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$mask = $what == 'write' ? EGW_ACL_EDIT : EGW_ACL_EDIT|EGW_ACL_READ; // do NOT report write+read in read
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//echo "<p>type=$type --> app=$app, what=$what --> right=$right, mask=$mask</p>\n";
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list($account_type,$account) = explode('/', $principal);
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$account = $GLOBALS['egw']->accounts->name2id($account, 'account_lid', $account_type[0]);
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$proxys = array();
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foreach($GLOBALS['egw']->acl->get_all_location_rights($account, $app, $app != 'addressbook') as $account_id => $rights)
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{
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if ($account_id !== 'run' && $account_id != $account && ($rights & $mask) == $right &&
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($account_lid = $GLOBALS['egw']->accounts->id2name($account_id)))
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{
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$proxys[$account_id] = $account_lid;
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// for groups add members too, if app is not addressbook
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if ($account_id < 0 && $app != 'addressbook')
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{
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foreach($GLOBALS['egw']->accounts->members($account_id) as $account_id => $account_lid)
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{
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$proxys[$account_id] = $account_lid;
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}
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}
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}
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//echo "<p>$account_id ($account_lid): (rights=$rights & mask=$mask) == right=$right --> ".array2string(($rights & $mask) == $right)."</p>\n";
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}
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return $this->add_principal($principal.'/'.$type, array(
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$this->principal_set('group-member-set', $proxys),
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), array(
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HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER, $type, ''),
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),'EGw-'.md5(serialize($proxys)).'-wGE');
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}
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/**
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* Create a named property with set or principal-urls
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*
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* @param string $prop egw. 'group-member-set' or 'membership'
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* @param array $accounts=array() account_id => account_lid pairs
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* @param string|array $app_proxys=null applications for which proxys should be added
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* @param int $account who is the proxy
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*/
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protected function principal_set($prop, array $accounts=array(), $add_proxys=null, $account=null)
|
|
{
|
|
$set = array();
|
|
foreach($accounts as $account_id => $account_lid)
|
|
{
|
|
$set[] = HTTP_WebDAV_Server::mkprop('href', $this->base_uri.'/principals/'.($account_id < 0 ? 'groups/' : 'users/').$account_lid);
|
|
}
|
|
if ($add_proxys)
|
|
{
|
|
foreach((array)$add_proxys as $app)
|
|
{
|
|
foreach($GLOBALS['egw']->acl->get_grants($app, $app != 'addressbook', $account) as $account_id => $rights)
|
|
{
|
|
if ($account_id != $account && ($rights & EGW_ACL_READ) &&
|
|
($account_lid = $GLOBALS['egw']->accounts->id2name($account_id)))
|
|
{
|
|
$set[] = HTTP_WebDAV_Server::mkprop('href', $this->base_uri.'/principals/'.
|
|
($account_id < 0 ? 'groups/' : 'users/').
|
|
$account_lid.'/'.$app.'-proxy-'.($rights & EGW_ACL_EDIT ? 'write' : 'read'));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return HTTP_WebDAV_Server::mkprop($prop, $set);
|
|
}
|
|
|
|
/**
|
|
* Do propfind of /principals/
|
|
*
|
|
* @param string $name name of group or empty
|
|
* @param string $rest name of rest of path behind group-name
|
|
* @param array $options
|
|
* @return array|string array with files or HTTP error code
|
|
*/
|
|
protected function propfind_principals(array $options)
|
|
{
|
|
//echo "<p>".__METHOD__."(".array($options).")</p>\n";
|
|
$files = array();
|
|
$files[] = $this->add_collection('/principals/');
|
|
|
|
if ($options['depth'])
|
|
{
|
|
$options['depth'] = 0;
|
|
$files = array_merge($files,$this->propfind_users('','',$options));
|
|
$files = array_merge($files,$this->propfind_groups('','',$options));
|
|
//$files = array_merge($this->propfind_resources('','',$options));
|
|
//$files = array_merge($this->propfind_uids('','',$options));
|
|
}
|
|
return $files;
|
|
}
|
|
|
|
/**
|
|
* Handle get request for an applications entry
|
|
*
|
|
* @param array &$options
|
|
* @param int $id
|
|
* @param int $user=null account_id
|
|
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
|
|
*/
|
|
function get(&$options,$id,$user=null)
|
|
{
|
|
if (!is_array($account = $this->_common_get_put_delete('GET',$options,$id)))
|
|
{
|
|
return $account;
|
|
}
|
|
$name = $GLOBALS['egw']->translation->convert(
|
|
trim($account['account_firstname'].' '.$account['account_lastname']),
|
|
$GLOBALS['egw']->translation->charset(),'utf-8');
|
|
$options['data'] = 'Principal: '.$account['account_lid'].
|
|
"\nURL: ".$this->base_uri.$options['path'].
|
|
"\nName: ".$name.
|
|
"\nEmail: ".$account['account_email'].
|
|
"\nMemberships: ".implode(', ',$this->accounts->memberships($id))."\n";
|
|
$options['mimetype'] = 'text/plain; charset=utf-8';
|
|
header('Content-Encoding: identity');
|
|
header('ETag: '.$this->get_etag($account));
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Handle get request for an applications entry
|
|
*
|
|
* @param array &$options
|
|
* @param int $id
|
|
* @param int $user=null account_id of owner, default null
|
|
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
|
|
*/
|
|
function put(&$options,$id,$user=null)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Handle get request for an applications entry
|
|
*
|
|
* @param array &$options
|
|
* @param int $id
|
|
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
|
|
*/
|
|
function delete(&$options,$id)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Read an entry
|
|
*
|
|
* @param string/int $id
|
|
* @return array/boolean array with entry, false if no read rights, null if $id does not exist
|
|
*/
|
|
function read($id)
|
|
{
|
|
return false;
|
|
//return $this->accounts->read($id);
|
|
}
|
|
|
|
/**
|
|
* Check if user has the neccessary rights on an entry
|
|
*
|
|
* @param int $acl EGW_ACL_READ, EGW_ACL_EDIT or EGW_ACL_DELETE
|
|
* @param array/int $entry entry-array or id
|
|
* @return boolean null if entry does not exist, false if no access, true if access permitted
|
|
*/
|
|
function check_access($acl,$entry)
|
|
{
|
|
if ($acl != EGW_ACL_READ)
|
|
{
|
|
return false;
|
|
}
|
|
if (!is_array($entry) && !$this->accounts->name2id($entry,'account_lid','u'))
|
|
{
|
|
return null;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get the etag for an entry, can be reimplemented for other algorithm or field names
|
|
*
|
|
* @param array/int $event array with event or cal_id
|
|
* @return string/boolean string with etag or false
|
|
*/
|
|
function get_etag($account)
|
|
{
|
|
if (!is_array($account))
|
|
{
|
|
$account = $this->read($account);
|
|
}
|
|
return 'EGw-'.$account['account_id'].':'.md5(serialize($account)).
|
|
// add md5 from calendar grants, as they are listed as memberships
|
|
':'.md5(serialize($GLOBALS['egw']->acl->get_grants('calendar', true, $account['account_id']))).
|
|
// as the principal of current user is influenced by GroupDAV prefs, we have to include them in the etag
|
|
($account['account_id'] == $GLOBALS['egw_info']['user']['account_id'] ?
|
|
':'.md5(serialize($GLOBALS['egw_info']['user']['preferences']['groupdav'])) : '').'-wGE';
|
|
}
|
|
} |