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egroupware/phpgwapi/inc/class.groupdav_principals.inc.php

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<?php
/**
* EGroupware: GroupDAV access: groupdav/caldav/carddav principals handlers
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage groupdav
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @copyright (c) 2008-11 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @version $Id$
*/
/**
* EGroupware: GroupDAV access: groupdav/caldav/carddav principals handlers
*
* @todo All principal urls should either contain no account_lid (eg. base64 of it) or use urlencode($account_lid)
*/
class groupdav_principals extends groupdav_handler
{
/**
* Reference to the accounts class
*
* @var accounts
*/
var $accounts;
/**
* Constructor
*
* @param string $app 'calendar', 'addressbook' or 'infolog'
* @param int $debug=null debug-level to set
* @param string $base_uri=null base url of handler
* @param string $principalURL=null pricipal url of handler
*/
function __construct($app,$debug=null,$base_uri=null,$principalURL=null)
{
parent::__construct($app,$debug,$base_uri,$principalURL);
$this->accounts = $GLOBALS['egw']->accounts;
}
/**
* Handle propfind request for an application folder
*
* @param string $path
* @param array $options
* @param array &$files
* @param int $user account_id
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
*/
function propfind($path,$options,&$files,$user)
{
// we do NOT support REPORTS on pricipals yet
// required for Apple Addressbook on Mac (addressbook-findshared REPORT)
if ($options['root']['name'] && $options['root']['name'] != 'propfind')
{
return '501 Not Implemented';
}
list(,$principals,$type,$name,$rest) = explode('/',$path,5);
// /principals/users/$name/
// /users/$name/calendar-proxy-read/
// /users/$name/calendar-proxy-write/
// /groups/$name/
// /resources/$resource/
// /__uids__/$uid/.../
switch($type)
{
case 'users':
$files['files'] = $this->propfind_users($name,$rest,$options);
break;
case 'groups':
$files['files'] = $this->propfind_groups($name,$rest,$options);
break;
case 'resources':
$files['files'] = $this->propfind_resources($name,$rest,$options);
break;
case '__uids__':
$files['files'] = $this->propfind_uids($name,$rest,$options);
break;
case '':
$files['files'] = $this->propfind_principals($options);
break;
default:
return '404 Not Found';
}
if (!is_array($files['files']))
{
return $files['files'];
}
return true;
list(,,$id) = explode('/',$path);
if ($id && !($id = $this->accounts->id2name($id)))
{
return false;
}
foreach($id ? array($this->accounts->read($id)) : $this->accounts->search(array('type' => 'accounts')) as $account)
{
$displayname = translation::convert($account['account_fullname'],
translation::charset(),'utf-8');
$props = array(
HTTP_WebDAV_Server::mkprop('displayname',$displayname),
HTTP_WebDAV_Server::mkprop('getetag',$this->get_etag($account)),
HTTP_WebDAV_Server::mkprop('resourcetype',array(
HTTP_WebDAV_Server::mkprop('principal', ''))),
HTTP_WebDAV_Server::mkprop('alternate-URI-set',''),
HTTP_WebDAV_Server::mkprop('principal-URL',$this->base_uri.'/principals/'.$account['account_lid']),
HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-home-set',array(
HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/'.$account['account_lid'].'/'))),
HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'addressbook-home-set',array(
HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/'.$account['account_lid'].'/'))),
);
foreach($this->accounts->memberships($account['account_id']) as $gid => $group)
{
$props[] = HTTP_WebDAV_Server::mkprop('group-membership',$this->base_uri.'/groups/'.$group);
}
$files['files'][] = array(
'path' => '/principals/'.$account['account_lid'],
'props' => $props,
);
if ($this->debug > 1) error_log(__METHOD__."($path) path=/principals/".$account['account_lid'].', props='.array2string($props));
}
return files;
}
/**
* Do propfind in /pricipals/users
*
* @param string $name name of account or empty
* @param string $rest rest of path behind account-name
* @param array $options
* @return array|string array with files or HTTP error code
*/
protected function propfind_users($name,$rest,array $options)
{
//echo "<p>".__METHOD__."($name,$rest,".array2string($options).")</p>\n";
if (empty($name))
{
$files = array();
// add /pricipals/users/ entry
$files[] = $this->add_collection('/principals/users/',array(
HTTP_WebDAV_Server::mkprop('current-user-principal',array(
HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/principals/users/'.$GLOBALS['egw_info']['user']['account_lid'].'/'))),
));
if ($options['depth'])
{
// add all users
foreach($this->accounts->search(array('type' => 'accounts')) as $account)
{
$files[] = $this->add_account($account);
}
}
}
else
{
if (!($id = $this->accounts->name2id($name,'account_lid','u')) ||
!($account = $this->accounts->read($id)))
{
return '404 Not Found';
}
switch((string)$rest)
{
case '':
$files[] = $this->add_account($account);
if ($options['depth'])
{
$files[] = $this->add_collection('/principals/users/'.$account['account_lid'].'/calendar-proxy-read');
$files[] = $this->add_collection('/principals/users/'.$account['account_lid'].'/calendar-proxy-write');
}
break;
case 'calendar-proxy-read':
case 'calendar-proxy-write':
$files = array();
$files[] = $this->add_collection('/principals/users/'.$account['account_lid'].'/'.$rest);
// add proxys
break;
default:
return '404 Not Found';
}
}
return $files;
}
/**
* Do propfind in /pricipals/groups
*
* @param string $name name of group or empty
* @param string $rest rest of path behind account-name
* @param array $options
* @return array|string array with files or HTTP error code
*/
protected function propfind_groups($name,$rest,array $options)
{
//echo "<p>".__METHOD__."($name,$rest,".array2string($options).")</p>\n";
if (empty($name))
{
$files = array();
// add /pricipals/users/ entry
$files[] = $this->add_collection('/principals/groups/',array(
HTTP_WebDAV_Server::mkprop('current-user-principal',array(
HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/principals/users/'.$GLOBALS['egw_info']['user']['account_lid'].'/'))),
));
if ($options['depth'])
{
// add all users
foreach($this->accounts->search(array('type' => 'groups')) as $account)
{
$files[] = $this->add_group($account);
}
}
}
else
{
if (!($id = $this->accounts->name2id($name,'account_lid','g')) ||
!($account = $this->accounts->read($id)))
{
return '404 Not Found';
}
switch((string)$rest)
{
case '':
$files[] = $this->add_group($account);
$files[] = $this->add_collection('/principals/groups/'.$account['account_lid'].'/calendar-proxy-read');
$files[] = $this->add_collection('/principals/groups/'.$account['account_lid'].'/calendar-proxy-write');
break;
case 'calendar-proxy-read':
case 'calendar-proxy-write':
$files = array();
$files[] = $this->add_collection('/principals/groups/'.$account['account_lid'].'/'.$rest);
// add proxys
break;
default:
return '404 Not Found';
}
}
return $files;
}
/**
* Add collection of a single account to a collection
*
* @param array $account
* @return array with values for keys 'path' and 'props'
*/
protected function add_account(array $account)
{
//echo "<p>".__METHOD__."(".array2string($account).")</p>\n";
$displayname = translation::convert($account['account_fullname'],
translation::charset(),'utf-8');
$memberships = array();
foreach($this->accounts->memberships($account['account_id']) as $gid => $group)
{
if ($group)
{
$memberships[] = HTTP_WebDAV_Server::mkprop('href',
$this->base_uri.'/principals/groups/'.$group);
}
}
$addressbooks = $calendars = array();
if ($account['account_id'] == $GLOBALS['egw_info']['user']['account_id'])
{
$prefs = $GLOBALS['egw_info']['user']['preferences']['groupdav'];
$addressbook_home_set = $prefs['addressbook-home-set'];
if (empty($addressbook_home_set)) $addressbook_home_set = 'P'; // personal addressbook
$addressbook_home_set = explode(',',$addressbook_home_set);
// replace symbolic id's with real nummeric id's
foreach(array(
'P' => $GLOBALS['egw_info']['user']['account_id'],
'G' => $GLOBALS['egw_info']['user']['account_primary_group'],
'U' => '0',
) as $sym => $id)
{
if (($key = array_search($sym, $addressbook_home_set)) !== false)
{
$addressbook_home_set[$key] = $id;
}
}
if (in_array('O',$addressbook_home_set)) // "all in one" from groupdav.php/addressbook/
{
$addressbooks[] = HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/');
}
foreach(ExecMethod('addressbook.addressbook_bo.get_addressbooks',EGW_ACL_READ) as $id => $label)
{
if ((in_array('A',$addressbook_home_set) || in_array((string)$id,$addressbook_home_set)) &&
is_numeric($id) && ($owner = $GLOBALS['egw']->accounts->id2name($id)))
{
$addressbooks[] = HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/'.urlencode($owner).'/');
}
}
$calendars[] = HTTP_WebDAV_Server::mkprop('href',
$this->base_uri.'/'.$account['account_lid'].'/');
/* iCal send propfind to wrong url (concatinated href's), if we return multiple href in calendar-home-set
$cal_bo = new calendar_bo();
foreach ($cal_bo->list_cals() as $label => $entry)
{
$id = $entry['grantor'];
$owner = $GLOBALS['egw']->accounts->id2name($id);
$calendars[] = HTTP_WebDAV_Server::mkprop('href',
$this->base_uri.'/'.$owner.'/');
}
*/
}
else
{
$addressbooks[] = HTTP_WebDAV_Server::mkprop('href',
$this->base_uri.'/'.$account['account_lid'].'/');
$calendars[] = HTTP_WebDAV_Server::mkprop('href',
$this->base_uri.'/'.$account['account_lid'].'/');
}
$props = array(
HTTP_WebDAV_Server::mkprop('displayname',$displayname),
HTTP_WebDAV_Server::mkprop('getetag',$this->get_etag($account)),
HTTP_WebDAV_Server::mkprop('resourcetype',array(
HTTP_WebDAV_Server::mkprop('principal', ''))),
HTTP_WebDAV_Server::mkprop('alternate-URI-set',array(
HTTP_WebDAV_Server::mkprop('href','MAILTO:'.$account['account_email']))),
HTTP_WebDAV_Server::mkprop('principal-URL',array(
HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/principals/users/'.$account['account_lid'].'/'))),
HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-home-set',$calendars),
HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-user-address-set',array(
HTTP_WebDAV_Server::mkprop('href','MAILTO:'.$account['account_email']),
HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/principals/users/'.$account['account_lid'].'/'),
HTTP_WebDAV_Server::mkprop('href','urn:uuid:'.$account['account_lid']))),
HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'schedule-outbox-URL',array(
HTTP_WebDAV_Server::mkprop(groupdav::DAV,'href',$this->base_uri.'/calendar/'))),
HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'email-address-set',array(
HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'email-address',$account['account_email']))),
HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'last-name',$account['account_lastname']),
HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'first-name',$account['account_firstname']),
HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'record-type','user'),
HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-user-type','INDIVIDUAL'),
HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'addressbook-home-set',$addressbooks),
HTTP_WebDAV_Server::mkprop('group-member-ship', $memberships),
HTTP_WebDAV_Server::mkprop('supported-report-set',array(
HTTP_WebDAV_Server::mkprop('supported-report',array(
HTTP_WebDAV_Server::mkprop('report',array(
HTTP_WebDAV_Server::mkprop('acl-principal-prop-set'))))))),
);
if ($this->debug > 1) error_log(__METHOD__."($path) path=/principals/users/".$account['account_lid'].', props='.array2string($props));
return array(
'path' => '/principals/users/'.$account['account_lid'].'/',
'props' => $props,
);
}
/**
* Add collection of a single group to a collection
*
* @param array $account
* @return array with values for keys 'path' and 'props'
*/
protected function add_group(array $account)
{
$displayname = translation::convert(lang('Group').' '.$account['account_lid'],
translation::charset(),'utf-8');
$members = array();
foreach($this->accounts->members($account['account_id']) as $gid => $user)
{
if ($user)
{
$members[] = HTTP_WebDAV_Server::mkprop('href',
$this->base_uri.'/principals/users/'.$user);
}
}
$props = array(
HTTP_WebDAV_Server::mkprop('displayname',$displayname),
HTTP_WebDAV_Server::mkprop('getetag',$this->get_etag($account)),
HTTP_WebDAV_Server::mkprop('resourcetype',array(
HTTP_WebDAV_Server::mkprop('principal', ''))),
HTTP_WebDAV_Server::mkprop('alternate-URI-set',''),
HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-home-set',array(
HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/'.$account['account_lid'].'/'))),
HTTP_WebDAV_Server::mkprop(groupdav::CARDDAV,'addressbook-home-set',array(
HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/'.$account['account_lid'].'/'))),
HTTP_WebDAV_Server::mkprop(groupdav::CALENDARSERVER,'record-type','group'),
HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-user-type','GROUP'),
HTTP_WebDAV_Server::mkprop('group-member-set', $members),
//HTTP_WebDAV_Server::mkprop('principal-URL',array(self::mkprop('href',$this->principalURL))),
);
$files['files'][] = array(
'path' => '/principals/groups/'.$account['account_lid'].'/',
'props' => $props,
);
if ($this->debug > 1) error_log(__METHOD__."($path) path=/principals/groups/".$account['account_lid'].', props='.array2string($props));
return array(
'path' => '/principals/groups/'.$account['account_lid'].'/',
'props' => $props,
);
}
/**
* Add a collection
*
* @param string $path
* @param array $props=array() extra properties 'resourcetype' is added anyway
* @return array
*/
protected function add_collection($path,$props=array())
{
//echo "<p>".__METHOD__."($path,".array($props).")</p>\n";
$props[] = HTTP_WebDAV_Server::mkprop('resourcetype',array(
HTTP_WebDAV_Server::mkprop('collection',''),
HTTP_WebDAV_Server::mkprop('resourcetype',array(
HTTP_WebDAV_Server::mkprop('principal', ''))),
));
return array(
'path' => $path,
'props' => $props,
);
}
/**
* Do propfind of /pricipals
*
* @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[] = $this->add_collection('/principals/',array(
HTTP_WebDAV_Server::mkprop('current-user-principal',array(
HTTP_WebDAV_Server::mkprop('href',$this->base_uri.'/principals/users/'.$GLOBALS['egw_info']['user']['account_lid'].'/'))),
));
if ($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)).
// as the pricipal 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';
}
}
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