egroupware/api/src/Accounts.php
2020-10-30 13:02:19 +01:00

1450 lines
46 KiB
PHP

<?php
/**
* EGroupware API - Accounts
*
* @link http://www.egroupware.org
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de> complete rewrite in 6/2006 and earlier modifications
*
* Implements the (now depricated) interfaces on the former accounts class written by
* Joseph Engo <jengo@phpgroupware.org> and Bettina Gille <ceb@phpgroupware.org>
* Copyright (C) 2000 - 2002 Joseph Engo, Copyright (C) 2003 Joseph Engo, Bettina Gille
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage accounts
*/
namespace EGroupware\Api;
/**
* API - accounts
*
* This class uses a backend class (at them moment SQL or LDAP) and implements some
* caching on to top of the backend functions:
*
* a) instance-wide account-data cache queried by account_id including also members(hips)
* implemented by self::cache_read($account_id) and self::cache_invalidate($account_ids)
*
* b) session based cache for search, split_accounts and name2id
* implemented by self::setup_cache() and self::cache_invalidate()
*
* The backend only implements the read, save, delete, name2id and the {set_}members{hips} methods.
* The account class implements all other (eg. name2id, id2name) functions on top of these.
*
* read and search return timestamps (account_(created|modified|lastlogin) in server-time!
*/
class Accounts
{
/**
* Enables the session-cache, currently switched on independent of the backend
*
* @var boolean
*/
static $use_session_cache = true;
/**
* Cache, stored in sesssion
*
* @var array
*/
static $cache;
/**
* Keys for which both versions with 'account_' prefix and without (depricated!) can be used, if requested.
* Migrate your code to always use the 'account_' prefix!!!
*
* @var array
*/
var $depricated_names = array('firstname','lastname','fullname','email','type',
'status','expires','lastlogin','lastloginfrom','lastpasswd_change');
/**
* List of all config vars accounts depend on and therefore should be passed in when calling contructor with array syntax
*
* @var array
*/
static public $config_vars = array(
'account_repository', 'auth_type', // auth_type if fallback if account_repository is not set
'install_id', // instance-specific caching
'auto_create_expire', 'default_group_lid', // auto-creation of accounts
'ldap_host','ldap_root_dn','ldap_root_pw','ldap_context','ldap_group_context','ldap_search_filter', // ldap backend
'ads_domain', 'ads_host', 'ads_admin_user', 'ads_admin_passwd', 'ads_connection', 'ads_context', // ads backend
);
/**
* Querytypes for the account-search
*
* @var array
*/
var $query_types = array(
'all' => 'all fields',
'firstname' => 'firstname',
'lastname' => 'lastname',
'lid' => 'LoginID',
'email' => 'email',
'start' => 'start with',
'exact' => 'exact',
);
/**
* Backend to use
*
* @var Accounts\Sql|Accounts\Ldap|Accounts\Ads|Accounts\Univention
*/
var $backend;
/**
* total number of found entries
*
* @var int
*/
var $total;
/**
* Current configuration
*
* @var array
*/
var $config;
/**
* hold an instance of the accounts class
*
* @var Accounts the instance of the accounts class
*/
private static $_instance = NULL;
/**
* Singleton
*
* @return Accounts
*/
public static function getInstance()
{
if (self::$_instance === NULL)
{
self::$_instance = new Accounts();
}
return self::$_instance;
}
/**
* Constructor
*
* @param string|array $backend =null string with backend 'sql'|'ldap', or whole config array, default read from global egw_info
*/
public function __construct($backend=null)
{
if (is_array($backend))
{
$this->config = $backend;
$backend = null;
self::$_instance = $this; // also set instance returned by singleton
self::$cache = array(); // and empty our internal (session) cache
}
else
{
$this->config =& $GLOBALS['egw_info']['server'];
if (!isset(self::$_instance)) self::$_instance = $this;
}
if (is_null($backend))
{
if (empty($this->config['account_repository']))
{
if (!empty($this->config['auth_type']))
{
$this->config['account_repository'] = $this->config['auth_type'];
}
else
{
$this->config['account_repository'] = 'sql';
}
}
$backend = $this->config['account_repository'];
}
$backend_class = 'EGroupware\\Api\\Accounts\\'.ucfirst($backend);
$this->backend = new $backend_class($this);
}
/**
* Searches / lists accounts: users and/or groups
*
* @ToDo improve and limit caching:
* - only cache user-specific stuff in session (owngroups, accounts with account_selection="groupmembers")
* - cache everything else for whole instance (groups, accounts unless account_selection="groupmembers")
* - only cache unlimited queries independent of sorting (limiting and sorting can be done quickly on unlimited queries)
* - stop caching in backends (with exception of backends which cant/dont do sorted limited queries like currently LDAP, where it makes sense to cache the unlimited query result)
* - apply reasonable short time-limit for instance-wide caching, as we have no invalidation for non-SQL systems eg. 2 hours
*
* @param array with the following keys:
* @param $param['type'] string|int 'accounts', 'groups', 'owngroups' (groups the user is a member of), 'both',
* 'groupmembers' (members of groups the user is a member of), 'groupmembers+memberships' (incl. memberships too)
* or integer group-id for a list of members of that group
* @param $param['start'] int first account to return (returns offset or max_matches entries) or all if not set
* @param $param['offset'] int - number of matches to return if start given, default use the value in the prefs
* @param $param['order'] string column to sort after, default account_lid if unset
* @param $param['sort'] string 'ASC' or 'DESC', default 'ASC' if not set
* @param $param['query'] string to search for, no search if unset or empty
* @param $param['query_type'] string:
* 'all' - query all fields for containing $param[query]
* 'start' - query all fields starting with $param[query]
* 'exact' - query all fields for exact $param[query]
* 'lid','firstname','lastname','email' - query only the given field for containing $param[query]
* @param $param['app'] string with an app-name, to limit result on accounts with run-right for that app
* @param $param['active']=true boolean - true: return only acctive accounts, false: return expired or deactivated too
* @return array with account_id => data pairs, data is an array with account_id, account_lid, account_firstname,
* account_lastname, person_id (id of the linked addressbook entry), account_status, account_expires, account_primary_group
*/
function search($param)
{
//error_log(__METHOD__.'('.array2string($param).') '.function_backtrace());
if (!isset($param['active'])) $param['active'] = true; // default is true = only return active accounts
// Check for lang(Group) in search - if there, we search all groups
$group_index = array_search(strtolower(lang('Group')), array_map('strtolower', $query = explode(' ',$param['query'])));
if($group_index !== FALSE && !(
in_array($param['type'], array('accounts', 'groupmembers')) || is_int($param['type'])
))
{
// do not return any groups for account-selection == "none"
if ($GLOBALS['egw_info']['user']['preferences']['common']['account_selection'] === 'none' &&
!isset($GLOBALS['egw_info']['user']['apps']['admin']))
{
$this->total = 0;
return array();
}
// only return own memberships for account-selection == "groupmembers"
$param['type'] = $GLOBALS['egw_info']['user']['preferences']['common']['account_selection'] === 'groupmembers' &&
!isset($GLOBALS['egw_info']['user']['apps']['admin']) ? 'owngroups' : 'groups';
// Remove the 'group' from the query, but only one (eg: Group NoGroup -> NoGroup)
unset($query[$group_index]);
$param['query'] = implode(' ', $query);
}
self::setup_cache();
$account_search = &self::$cache['account_search'];
$serial = serialize($param);
if (isset($account_search[$serial]))
{
$this->total = $account_search[$serial]['total'];
}
// no backend understands $param['app'], only sql understands type owngroups or groupmemember[+memberships]
// --> do an full search first and then filter and limit that search
elseif($param['app'] || $this->config['account_repository'] != 'sql' &&
in_array($param['type'], array('owngroups','groupmembers','groupmembers+memberships')))
{
$app = $param['app'];
unset($param['app']);
$start = $param['start'];
unset($param['start']);
$offset = $param['offset'] ? $param['offset'] : $GLOBALS['egw_info']['user']['preferences']['common']['maxmatchs'];
unset($param['offset']);
$stop = $start + $offset;
if ($param['type'] == 'owngroups')
{
$members = $this->memberships($GLOBALS['egw_info']['user']['account_id'],true);
$param['type'] = 'groups';
}
elseif(in_array($param['type'],array('groupmembers','groupmembers+memberships')))
{
$members = array();
foreach((array)$this->memberships($GLOBALS['egw_info']['user']['account_id'],true) as $grp)
{
if (isset($this->backend->ignore_membership) && in_array($grp, $this->backend->ignore_membership)) continue;
$members = array_unique(array_merge($members, (array)$this->members($grp,true,$param['active'])));
if ($param['type'] == 'groupmembers+memberships') $members[] = $grp;
}
$param['type'] = $param['type'] == 'groupmembers+memberships' ? 'both' : 'accounts';
}
// call ourself recursive to get (evtl. cached) full search
$full_search = $this->search($param);
// filter search now on accounts with run-rights for app or a group
$valid = array();
if ($app)
{
// we want the result merged, whatever it takes, as we only care for the ids
$valid = $this->split_accounts($app,!in_array($param['type'],array('accounts','groups')) ? 'merge' : $param['type'],$param['active']);
}
if (isset($members))
{
//error_log(__METHOD__.'() members='.array2string($members));
if (!$members) $members = array();
$valid = !$app ? $members : array_intersect($valid,$members); // use the intersection
}
//error_log(__METHOD__."() limiting result to app='$app' and/or group=$group valid-ids=".array2string($valid));
$n = 0;
$account_search[$serial]['data'] = array();
foreach ($full_search as $id => $data)
{
if (!in_array($id,$valid))
{
$this->total--;
continue;
}
// now we have a valid entry
if (!is_int($start) || $start <= $n && $n < $stop)
{
$account_search[$serial]['data'][$id] = $data;
}
$n++;
}
$account_search[$serial]['total'] = $this->total;
}
// direct search via backend
else
{
$account_search[$serial]['data'] = $this->backend->search($param);
if ($param['type'] !== 'accounts')
{
foreach($account_search[$serial]['data'] as &$account)
{
// add default description for Admins and Default group
if ($account['account_type'] === 'g')
{
self::add_default_group_description($account);
}
}
}
$account_search[$serial]['total'] = $this->total = $this->backend->total;
}
return $account_search[$serial]['data'];
}
/**
* Query for accounts
*
* @param string|array $pattern
* @param array $options
* $options['filter']['group'] only return members of that group
* $options['account_type'] "accounts", "groups", "both" or "groupmembers"
* $options['tag_list'] true: return array of values for keys "value", "label" and "icon"
* @return array with id - title pairs of the matching entries
*/
public static function link_query($pattern, array &$options = array())
{
if (isset($options['filter']) && !is_array($options['filter']))
{
$options['filter'] = (array)$options['filter'];
}
switch($GLOBALS['egw_info']['user']['preferences']['common']['account_display'])
{
case 'firstname':
case 'firstall':
case 'firstgroup':
$order = 'account_firstname,account_lastname';
break;
case 'lastname':
case 'lastall':
case 'firstgroup':
$order = 'account_lastname,account_firstname';
break;
default:
$order = 'account_lid';
break;
}
$only_own = $GLOBALS['egw_info']['user']['preferences']['common']['account_selection'] === 'groupmembers' &&
!isset($GLOBALS['egw_info']['user']['apps']['admin']);
switch($options['account_type'])
{
case 'accounts':
$type = $only_own ? 'groupmembers' : 'accounts';
break;
case 'groups':
$type = $only_own ? 'owngroups' : 'groups';
break;
case 'memberships':
$type = 'owngroups';
break;
case 'owngroups':
case 'groupmembers':
$type = $options['account_type'];
break;
case 'both':
default:
$type = $only_own ? 'groupmembers+memberships' : 'both';
break;
}
$accounts = array();
foreach(self::getInstance()->search(array(
'type' => $options['filter']['group'] < 0 ? $options['filter']['group'] : $type,
'query' => $pattern,
'query_type' => 'all',
'order' => $order,
)) as $account)
{
$displayName = self::format_username($account['account_lid'],
$account['account_firstname'],$account['account_lastname'],$account['account_id']);
if (!empty($options['tag_list']))
{
$accounts[] = [
'value' => $account['account_id'],
'label' => $displayName,
'icon' => Framework::link('/api/avatar.php', [
'account_id' => $account['account_id'],
'modified' => $account['account_modified'],
]),
];
}
else
{
$accounts[$account['account_id']] = $displayName;
}
}
return $accounts;
}
/**
* Reads the data of one account
*
* All key of the returned array use the 'account_' prefix.
* For backward compatibility some values are additionaly availible without the prefix, using them is depricated!
*
* @param int|string $id numeric account_id or string with account_lid
* @param boolean $set_depricated_names =false set _additionaly_ the depricated keys without 'account_' prefix
* @return array/boolean array with account data (keys: account_id, account_lid, ...) or false if account not found
*/
function read($id, $set_depricated_names=false)
{
if (!is_int($id) && !is_numeric($id))
{
$id = $this->name2id($id);
}
if (!$id) return false;
$data = self::cache_read($id);
// add default description for Admins and Default group
if ($data['account_type'] === 'g')
{
self::add_default_group_description($data);
}
if ($set_depricated_names && $data)
{
foreach($this->depricated_names as $name)
{
$data[$name] =& $data['account_'.$name];
}
}
return $data;
}
/**
* Get an account as json, returns only whitelisted fields:
* - 'account_id','account_lid','person_id','account_status','memberships'
* - 'account_firstname','account_lastname','account_email','account_fullname','account_phone'
*
* @param int|string $id
* @return string|boolean json or false if not found
*/
function json($id)
{
static $keys = array(
'account_id','account_lid','person_id','account_status','memberships',
'account_firstname','account_lastname','account_email','account_fullname','account_phone',
);
if (($account = $this->read($id)))
{
if (isset($account['memberships'])) $account['memberships'] = array_keys($account['memberships']);
$account = array_intersect_key($account, array_flip($keys));
}
// for current user, add the apps available to him
if ($id == $GLOBALS['egw_info']['user']['account_id'])
{
foreach((array)$GLOBALS['egw_info']['user']['apps'] as $app => $data)
{
unset($data['table_defs']); // no need for that on the client
$account['apps'][$app] = $data;
}
}
return json_encode($account, JSON_PARTIAL_OUTPUT_ON_ERROR|JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE);
}
/**
* Format lid, firstname, lastname according to use preferences
*
* @param $lid ='' account loginid
* @param $firstname ='' firstname
* @param $lastname ='' lastname
* @param $accountid =0 id, to check if it's a user or group, otherwise the lid will be used
*/
static function format_username($lid = '', $firstname = '', $lastname = '', $accountid=0)
{
if (!$lid && !$firstname && !$lastname)
{
$lid = $GLOBALS['egw_info']['user']['account_lid'];
$firstname = $GLOBALS['egw_info']['user']['account_firstname'];
$lastname = $GLOBALS['egw_info']['user']['account_lastname'];
$accountid = $GLOBALS['egw_info']['user']['account_id'];
}
$is_group = $GLOBALS['egw']->accounts->get_type($accountid ? $accountid : $lid) == 'g';
if (empty($firstname)) $firstname = $lid;
if (empty($lastname) || $is_group)
{
$lastname = $is_group ? lang('Group') : lang('User');
}
$display = $GLOBALS['egw_info']['user']['preferences']['common']['account_display'];
if ($firstname && $lastname)
{
$delimiter = $is_group ? ' ' : ', ';
}
else
{
$delimiter = '';
}
$name = '';
switch($display)
{
case 'firstname':
$name = $firstname . ' ' . $lastname;
break;
case 'lastname':
$name = $lastname . $delimiter . $firstname;
break;
case 'username':
$name = $lid;
break;
case 'firstall':
$name = $firstname . ' ' . $lastname . ' ['.$lid.']';
break;
case 'lastall':
$name = $lastname . $delimiter . $firstname . ' ['.$lid.']';
break;
case 'allfirst':
$name = '['.$lid.'] ' . $firstname . ' ' . $lastname;
break;
case 'firstgroup':
$group = Accounts::id2name($lid, 'account_primary_group');
$name = $firstname . ' ' . $lastname . ($is_group ? '' : ' ('.Accounts::id2name($group).')');
break;
case 'lastgroup':
$group = Accounts::id2name($lid, 'account_primary_group');
$name = $lastname . $delimiter . $firstname . ($is_group ? '' : ' ('.Accounts::id2name($group).')');
break;
case 'firstinital':
$name = $firstname.' '.mb_substr($lastname, 0, 1).'.';
break;
case 'firstid':
$name = $firstname.' ['.$accountid.']';
break;
case 'all':
/* fall through */
default:
$name = '['.$lid.'] ' . $lastname . $delimiter . $firstname;
}
return $name;
}
/**
* Return formatted username for a given account_id
*
* @param string $account_id =null account id
* @return string full name of user or "#$accountid" if user not found
*/
static function username($account_id=null)
{
if ($account_id && !($account = self::cache_read((int)$account_id)))
{
return '#'.$account_id;
}
return self::format_username($account['account_lid'],
$account['account_firstname'] , $account['account_lastname'], $account_id);
}
/**
* Format an email address according to the system standard
*
* Convert all european special chars to ascii and fallback to the accountname, if nothing left eg. chiniese
*
* @param string $first firstname
* @param string $last lastname
* @param string $account account-name (lid)
* @param string $domain =null domain-name or null to use eGW's default domain $GLOBALS['egw_info']['server']['mail_suffix]
* @return string with email address
*/
static function email($first,$last,$account,$domain=null)
{
if ($GLOBALS['egw_info']['server']['email_address_format'] === 'none')
{
return null;
}
foreach (array('first','last','account') as $name)
{
$$name = Translation::to_ascii($$name);
}
//echo " --> ('$first', '$last', '$account')";
if (!$first && !$last) // fallback to the account-name, if real names contain only special chars
{
$first = '';
$last = $account;
}
if (!$first || !$last)
{
$dot = $underscore = '';
}
else
{
$dot = '.';
$underscore = '_';
}
if (!$domain) $domain = $GLOBALS['egw_info']['server']['mail_suffix'];
if (!$domain) $domain = $_SERVER['SERVER_NAME'];
$email = str_replace(array('first','last','initial','account','dot','underscore','-'),
array($first,$last,substr($first,0,1),$account,$dot,$underscore,''),
$GLOBALS['egw_info']['server']['email_address_format'] ? $GLOBALS['egw_info']['server']['email_address_format'] : 'first-dot-last').
($domain ? '@'.$domain : '');
if (!empty($GLOBALS['egw_info']['server']['email_address_lowercase']))
{
$email = strtolower($email);
}
//echo " = '$email'</p>\n";
return $email;
}
/**
* Add a default description for stock groups: Admins, Default, NoGroup
*
* @param array &$data
*/
protected static function add_default_group_description(array &$data)
{
if (empty($data['account_description']))
{
switch($data['account_lid'])
{
case 'Default':
$data['account_description'] = lang('EGroupware all users group, do NOT delete');
break;
case 'Admins':
$data['account_description'] = lang('EGroupware administrators group, do NOT delete');
break;
case 'NoGroup':
$data['account_description'] = lang('EGroupware anonymous users group, do NOT delete');
break;
}
}
else
{
$data['account_description'] = lang($data['account_description']);
}
}
/**
* Saves / adds the data of one account
*
* If no account_id is set in data the account is added and the new id is set in $data.
*
* @param array $data array with account-data
* @param boolean $check_depricated_names =false check _additionaly_ the depricated keys without 'account_' prefix
* @return int|boolean the account_id or false on error
*/
function save(&$data,$check_depricated_names=false)
{
if ($check_depricated_names)
{
foreach($this->depricated_names as $name)
{
if (isset($data[$name]) && !isset($data['account_'.$name]))
{
$data['account_'.$name] =& $data[$name];
}
}
}
$update_type = "update";
// add default description for Admins and Default group
if ($data['account_type'] === 'g' && empty($data['account_description']))
{
self::add_default_group_description($data);
}
if (($id = $this->backend->save($data)) && $data['account_type'] != 'g')
{
// if we are not on a pure LDAP system, we have to write the account-date via the contacts class now
if (($this->config['account_repository'] == 'sql' || $this->config['contact_repository'] == 'sql-ldap') &&
(!($old = $this->read($data['account_id'])) || // only for new account or changed contact-data
$old['account_firstname'] != $data['account_firstname'] ||
$old['account_lastname'] != $data['account_lastname'] ||
$old['account_email'] != $data['account_email']))
{
if (!$data['person_id'])
{
$data['person_id'] = $old['person_id'];
}
// Include previous contact information to avoid blank history rows
$contact = array_merge((array)$GLOBALS['egw']->contacts->read($data['person_id'], true), array(
'n_given' => $data['account_firstname'],
'n_family' => $data['account_lastname'],
'email' => $data['account_email'],
'account_id' => $data['account_id'],
'id' => $data['person_id'],
'owner' => 0,
));
$GLOBALS['egw']->contacts->save($contact, true); // true = ignore addressbook acl
}
// save primary group if necessary
if ($data['account_primary_group'] && (!($memberships = $this->memberships($id,true)) ||
!in_array($data['account_primary_group'],$memberships)))
{
$memberships[] = $data['account_primary_group'];
$this->set_memberships($memberships, $id); // invalidates cache for account_id and primary group
}
}
// as some backends set (group-)members in save, we need to invalidate their members too!
$invalidate = isset($data['account_members']) ? $data['account_members'] : array();
$invalidate[] = $data['account_id'];
self::cache_invalidate($invalidate);
// Notify linked apps about changes in the account data
Link::notify_update('admin', $id, $data, $update_type);
return $id;
}
/**
* Delete one account, deletes also all acl-entries for that account
*
* @param int|string $id numeric account_id or string with account_lid
* @return boolean true on success, false otherwise
*/
function delete($id)
{
if (!is_int($id) && !is_numeric($id))
{
$id = $this->name2id($id);
}
if (!$id) return false;
if ($this->get_type($id) == 'u')
{
$invalidate = $this->memberships($id, true);
}
else
{
$invalidate = $this->members($id, true, false);
}
$invalidate[] = $id;
$this->backend->delete($id);
self::cache_invalidate($invalidate);
// delete all acl_entries belonging to that user or group
$GLOBALS['egw']->acl->delete_account($id);
// delete all categories belonging to that user or group
Categories::delete_account($id);
// Notify linked apps about changes in the account data
Link::notify_update('admin', $id, null, 'delete');
return true;
}
/**
* Test if given an account is expired
*
* @param int|string|array $data account_(l)id or array with account-data
* @return boolean true=expired (no more login possible), false otherwise
*/
static function is_expired($data)
{
if (is_null($data))
{
throw new Exception\WrongParameter('Missing parameter to Accounts::is_active()');
}
if (!is_array($data)) $data = self::getInstance()->read($data);
$expires = isset($data['account_expires']) ? $data['account_expires'] : $data['expires'];
return $expires != -1 && $expires < time();
}
/**
* Test if an account is active - NOT deactivated or expired
*
* @param int|string|array $data account_(l)id or array with account-data
* @return boolean false if account does not exist, is expired or decativated, true otherwise
*/
static function is_active($data)
{
if (!is_array($data)) $data = self::getInstance()->read($data);
return $data && !(self::is_expired($data) || $data['account_status'] != 'A');
}
/**
* convert an alphanumeric account-value (account_lid, account_email) to the account_id
*
* Please note:
* - if a group and an user have the same account_lid the group will be returned (LDAP only)
* - if multiple user have the same email address, the returned user is undefined
*
* @param string $name value to convert
* @param string $which ='account_lid' type of $name: account_lid (default), account_email, person_id, account_fullname
* @param string $account_type =null u = user or g = group, or default null = try both
* @return int|false numeric account_id or false on error ($name not found)
*/
function name2id($name,$which='account_lid',$account_type=null)
{
// Don't bother searching for empty or non-scalar account_lid
if(empty($name) || !is_scalar($name))
{
return False;
}
self::setup_cache();
$name_list = &self::$cache['name_list'];
if(@isset($name_list[$which][$name]) && $name_list[$which][$name])
{
return $name_list[$which][$name];
}
return $name_list[$which][$name] = $this->backend->name2id($name,$which,$account_type);
}
/**
* Convert an numeric account_id to any other value of that account (account_lid, account_email, ...)
*
* Uses the read method to fetch all data.
*
* @param int|string $account_id numeric account_id or account_lid
* @param string $which ='account_lid' type to convert to: account_lid (default), account_email, ...
* @param boolean $generate_email =false true: generate an email address, if user has none
* @return string|boolean converted value or false on error ($account_id not found)
*/
static function id2name($account_id, $which='account_lid', $generate_email=false)
{
if (!is_numeric($account_id) && !($account_id = self::getInstance()->name2id($account_id)))
{
return false;
}
try {
if (!($data = self::cache_read($account_id))) return false;
}
catch (Exception $e) {
unset($e);
return false;
}
if ($generate_email && $which === 'account_email' && empty($data[$which]))
{
return self::email($data['account_firstname'], $data['account_lastname'], $data['account_lid']);
}
return $data[$which];
}
/**
* get the type of an account: 'u' = user, 'g' = group
*
* @param int|string $account_id numeric account-id or alphanum. account-lid,
* if !$accountid account of the user of this session
* @return string/false 'u' = user, 'g' = group or false on error ($accountid not found)
*/
function get_type($account_id)
{
if (!is_int($account_id) && !is_numeric($account_id))
{
$account_id = $this->name2id($account_id);
}
return $account_id > 0 ? 'u' : ($account_id < 0 ? 'g' : false);
}
/**
* check if an account exists and if it is an user or group
*
* @param int|string $account_id numeric account_id or account_lid
* @return int 0 = acount does not exist, 1 = user, 2 = group
*/
function exists($account_id)
{
if (!$account_id || !($data = $this->read($account_id)))
{
// non sql backends might NOT show EGw all users, but backend->id2name/name2id does
if (is_a($this->backend, __CLASS__.'\\Univention'))
{
if (!is_numeric($account_id) ?
($account_id = $this->backend->name2id($account_id)) :
$this->backend->id2name($account_id))
{
return $account_id > 0 ? 1 : 2;
}
}
return 0;
}
return $data['account_type'] == 'u' ? 1 : 2;
}
/**
* Checks if a given account is visible to current user
*
* Not all existing accounts are visible because off account_selection preference: 'none' or 'groupmembers'
*
* @param int|string $account_id nummeric account_id or account_lid
* @return boolean true = account is visible, false = account not visible, null = account does not exist
*/
function visible($account_id)
{
if (!is_numeric($account_id)) // account_lid given
{
$account_lid = $account_id;
if (!($account_id = $this->name2id($account_lid))) return null;
}
else
{
if (!($account_lid = $this->id2name($account_id))) return null;
}
if (!isset($GLOBALS['egw_info']['user']['apps']['admin']) &&
// do NOT allow other user, if account-selection is none
($GLOBALS['egw_info']['user']['preferences']['common']['account_selection'] == 'none' &&
$account_lid != $GLOBALS['egw_info']['user']['account_lid'] ||
// only allow group-members for account-selection is groupmembers
$GLOBALS['egw_info']['user']['preferences']['common']['account_selection'] == 'groupmembers' &&
!array_intersect((array)$this->memberships($account_id,true),
(array)$this->memberships($GLOBALS['egw_info']['user']['account_id'],true))))
{
//error_log(__METHOD__."($account_id='$account_lid') returning FALSE");
return false; // user is not allowed to see given account
}
return true; // user allowed to see given account
}
/**
* Get all memberships of an account $account_id / groups the account is a member off
*
* @param int|string $account_id numeric account-id or alphanum. account-lid
* @param boolean $just_id =false return just account_id's or account_id => account_lid pairs
* @return array with account_id's ($just_id) or account_id => account_lid pairs (!$just_id)
*/
function memberships($account_id, $just_id=false)
{
if (!is_int($account_id) && !is_numeric($account_id))
{
$account_id = $this->name2id($account_id,'account_lid','u');
}
if ($account_id && ($data = self::cache_read($account_id)))
{
$ret = $just_id && $data['memberships'] ? array_keys($data['memberships']) : $data['memberships'];
}
//error_log(__METHOD__."($account_id, $just_id) data=".array2string($data)." returning ".array2string($ret));
return $ret;
}
/**
* Sets the memberships of a given account
*
* @param array $groups array with gidnumbers
* @param int $account_id uidnumber
* @return boolean true: membership changed, false: no change necessary
*/
function set_memberships($groups,$account_id)
{
if (!is_int($account_id) && !is_numeric($account_id))
{
$account_id = $this->name2id($account_id);
}
if (($old_memberships = $this->memberships($account_id, true)) == $groups)
{
return false; // nothing changed
}
$this->backend->set_memberships($groups, $account_id);
if (!$old_memberships) $old_memberships = array();
self::cache_invalidate(array_unique(array_merge(
array($account_id),
array_diff($old_memberships, $groups),
array_diff($groups, $old_memberships)
)));
return true;
}
/**
* Get all members of the group $account_id
*
* @param int|string $account_id ='' numeric account-id or alphanum. account-lid,
* default account of the user of this session
* @param boolean $just_id =false return just an array of id's and not id => lid pairs, default false
* @param boolean $active =false true: return only active (not expired or deactived) members, false: return all accounts
* @return array with account_id ($just_id) or account_id => account_lid pairs (!$just_id)
*/
function members($account_id, $just_id=false, $active=true)
{
if (!is_int($account_id) && !is_numeric($account_id))
{
$account_id = $this->name2id($account_id);
}
if ($account_id && ($data = self::cache_read($account_id, $active)))
{
$members = $active ? $data['members-active'] : $data['members'];
return $just_id && $members ? array_keys($members) : $members;
}
return null;
}
/**
* Set the members of a group
*
* @param array $members array with uidnumber or uid's
* @param int $gid gidnumber of group to set
*/
function set_members($members,$gid)
{
if (($old_members = $this->members($gid, true, false)) != $members)
{
$this->backend->set_members($members, $gid);
self::cache_invalidate(array_unique(array_merge(
array($gid),
array_diff($old_members, $members),
array_diff($members, $old_members)
)));
}
}
/**
* splits users and groups from a array of id's or the accounts with run-rights for a given app-name
*
* @param array $app_users array of user-id's or app-name (if you use app-name the result gets cached!)
* @param string $use what should be returned only an array with id's of either 'accounts' or 'groups'.
* Or an array with arrays for 'both' under the keys 'groups' and 'accounts' or 'merge' for accounts
* and groups merged into one array
* @param boolean $active =false true: return only active (not expired or deactived) members, false: return all accounts
* @return array/boolean see $use, false on error (wront $use)
*/
function split_accounts($app_users,$use='both',$active=true)
{
if (!is_array($app_users))
{
self::setup_cache();
$cache = &self::$cache['account_split'][$app_users];
if (is_array($cache))
{
return $cache;
}
$app_users = $GLOBALS['egw']->acl->get_ids_for_location('run',1,$app_users);
}
$accounts = array(
'accounts' => array(),
'groups' => array(),
);
foreach($app_users as $id)
{
$type = $this->get_type($id);
if($type == 'g')
{
$accounts['groups'][$id] = $id;
if ($use != 'groups')
{
foreach((array)$this->members($id, true, $active) as $id)
{
$accounts['accounts'][$id] = $id;
}
}
}
else
{
$accounts['accounts'][$id] = $id;
}
}
// not sure why they need to be sorted, but we need to remove the keys anyway
sort($accounts['groups']);
sort($accounts['accounts']);
if (isset($cache))
{
$cache = $accounts;
}
switch($use)
{
case 'both':
return $accounts;
case 'groups':
return $accounts['groups'];
case 'accounts':
return $accounts['accounts'];
case 'merge':
return array_merge($accounts['accounts'],$accounts['groups']);
}
return False;
}
/**
* Get a list of how many entries of each app the account has
*
* @param int $account_id
*
* @return array app => count
*/
public function get_account_entry_counts($account_id)
{
$owner_columns = static::get_owner_columns();
$selects = array();
foreach($owner_columns as $app => $column)
{
list($table, $column_name) = explode('.', $column['column']);
$select = array(
'table' => $table,
'cols' => array(
"'$app' AS app",
"'total' AS type",
'count(' . $column['key'] . ') AS count'
),
'where' => array(
$column['column'] => (int)$account_id
),
'app' => $app
);
switch($app)
{
case 'infolog':
$select['cols'][1] = 'info_type AS type';
$select['append'] = ' GROUP BY info_type';
break;
}
$selects[] = $select;
}
$counts = array();
foreach($GLOBALS['egw']->db->union($selects, __LINE__ , __FILE__) as $row)
{
if(!is_array($counts[$row['app']]))
{
$counts[$row['app']] = array('total' => 0);
}
$counts[$row['app']][$row['type']] = $row['count'];
if($row['type'] != 'total')
{
$counts[$row['app']]['total'] += $row['count'];
}
}
return $counts;
}
protected function get_owner_columns()
{
$owner_columns = array();
foreach($GLOBALS['egw_info']['apps'] as $appname => $app)
{
// Check hook
$owner_column = Link::get_registry($appname, 'owner');
// Try for automatically finding the modification
if(!is_array($owner_column) && !in_array($appname, array('admin', 'api','etemplate','phpgwapi')))
{
$tables = $GLOBALS['egw']->db->get_table_definitions($appname);
if(!is_array($tables))
{
continue;
}
foreach($tables as $table_name => $table)
{
foreach($table['fd'] as $column_name => $column)
{
if((strpos($column_name, 'owner') !== FALSE || strpos($column_name, 'creator') !== FALSE) &&
($column['meta'] == 'account' || $column['meta'] == 'user')
)
{
$owner_column = array(
'key' => $table_name . '.' . $table['pk'][0],
'column' => $table_name . '.' . $column_name,
'type' => $column['type']
);
break 2;
}
}
}
}
if($owner_column)
{
$owner_columns[$appname] = $owner_column;
}
}
return $owner_columns;
}
/**
* Add an account for an authenticated user
*
* Expiration date and primary group are read from the system configuration.
*
* @param string $account_lid
* @param string $passwd
* @param array $GLOBALS['auto_create_acct'] values for 'firstname', 'lastname', 'email' and 'primary_group'
* @return int|boolean account_id or false on error
*/
function auto_add($account_lid, $passwd)
{
$expires = !isset($this->config['auto_create_expire']) ||
$this->config['auto_create_expire'] == 'never' ? -1 :
time() + $this->config['auto_create_expire'] + 2;
$memberships = array();
$default_group_id = null;
// check if we have a comma or semicolon delimited list of groups --> add first as primary and rest as memberships
foreach(preg_split('/[,;] */',$this->config['default_group_lid']) as $group_lid)
{
if (($group_id = $this->name2id($group_lid,'account_lid','g')))
{
if (!$default_group_id) $default_group_id = $group_id;
$memberships[] = $group_id;
}
}
if (!$default_group_id && ($default_group_id = $this->name2id('Default','account_lid','g')))
{
$memberships[] = $default_group_id;
}
$primary_group = $GLOBALS['auto_create_acct']['primary_group'] &&
$this->get_type((int)$GLOBALS['auto_create_acct']['primary_group']) === 'g' ?
(int)$GLOBALS['auto_create_acct']['primary_group'] : $default_group_id;
if ($primary_group && !in_array($primary_group, $memberships))
{
$memberships[] = $primary_group;
}
// add a requested addtional group, eg. Teachers for smallpart
if (!empty($GLOBALS['auto_create_acct']['add_group']) &&
$this->get_type((int)$GLOBALS['auto_create_acct']['add_group']) === 'g')
{
$memberships[] = (int)$GLOBALS['auto_create_acct']['add_group'];
}
$data = array(
'account_lid' => $account_lid,
'account_type' => 'u',
'account_passwd' => $passwd,
'account_firstname' => $GLOBALS['auto_create_acct']['firstname'] ? $GLOBALS['auto_create_acct']['firstname'] : 'New',
'account_lastname' => $GLOBALS['auto_create_acct']['lastname'] ? $GLOBALS['auto_create_acct']['lastname'] : 'User',
'account_email' => $GLOBALS['auto_create_acct']['email'],
'account_status' => 'A',
'account_expires' => $expires,
'account_primary_group' => $primary_group,
);
// use given account_id, if it's not already used
if (isset($GLOBALS['auto_create_acct']['account_id']) &&
is_numeric($GLOBALS['auto_create_acct']['account_id']) &&
!$this->id2name($GLOBALS['auto_create_acct']['account_id']))
{
$data['account_id'] = $GLOBALS['auto_create_acct']['account_id'];
}
if (!($data['account_id'] = $this->save($data)))
{
return false;
}
// set memberships if given
if ($memberships)
{
$this->set_memberships($memberships,$data['account_id']);
}
// set the appropriate value for the can change password flag (assume users can, if the admin requires users to change their password)
$data['changepassword'] = (bool)$GLOBALS['egw_info']['server']['change_pwd_every_x_days'];
if(!$data['changepassword'])
{
$GLOBALS['egw']->acl->add_repository('preferences','nopasswordchange',$data['account_id'],1);
}
else
{
$GLOBALS['egw']->acl->delete_repository('preferences','nopasswordchange',$data['account_id']);
}
// call hook to notify interested apps about the new account
$GLOBALS['hook_values'] = $data;
Hooks::process($data+array(
'location' => 'addaccount',
// at login-time only the hooks from the following apps will be called
'order' => array('felamimail','fudforum'),
),False,True); // called for every app now, not only enabled ones
unset($data['changepassword']);
return $data['account_id'];
}
/**
* Update the last login timestamps and the IP
*
* @param int $account_id
* @param string $ip
* @return int lastlogin time
*/
function update_lastlogin($account_id, $ip)
{
return $this->backend->update_lastlogin($account_id, $ip);
}
/**
* Query if backend allows to change username aka account_lid
*
* @return boolean false if backend does NOT allow it (AD), true otherwise (SQL, LDAP)
*/
function change_account_lid_allowed()
{
$change_account_lid = constant(get_class($this->backend).'::CHANGE_ACCOUNT_LID');
if (!isset($change_account_lid)) $change_account_lid = true;
return $change_account_lid;
}
/**
* Query if backend requires password to be set, before allowing to enable an account
*
* @return boolean true if backend requires a password (AD), false or null otherwise (SQL, LDAP)
*/
function require_password_for_enable()
{
return constant(get_class($this->backend).'::REQUIRE_PASSWORD_FOR_ENABLE');
}
/**
* Invalidate cache (or parts of it) after change in $account_ids
*
* We use now an instance-wide read-cache storing account-data and members(hips).
*
* @param int|array $account_ids user- or group-id(s) for which cache should be invalidated, default 0 = only search/name2id cache
*/
static function cache_invalidate($account_ids=0)
{
//error_log(__METHOD__.'('.array2string($account_ids).')');
// instance-wide cache
if ($account_ids)
{
$instance = self::getInstance();
foreach((array)$account_ids as $account_id)
{
Cache::unsetCache($instance->config['install_id'], __CLASS__, 'account-'.$account_id);
unset(self::$request_cache[$account_id]);
}
}
else
{
self::$request_cache = array();
}
// session-cache
if (self::$cache) self::$cache = array();
Cache::unsetSession('accounts_cache','phpgwapi');
if (method_exists($GLOBALS['egw'],'invalidate_session_cache')) // egw object in setup is limited
{
Egw::invalidate_session_cache(); // invalidates whole egw-enviroment if stored in the session
}
}
/**
* Timeout of instance wide cache for reading account-data and members(hips)
*/
const READ_CACHE_TIMEOUT = 43200;
/**
* Local per request cache, to minimize calls to instance cache
*
* @var array
*/
static $request_cache = array();
/**
* Read account incl. members/memberships from cache (or backend and cache it)
*
* @param int $account_id
* @param boolean $need_active =false true = 'members-active' required
* @return array
* @throws Exception\WrongParameter if no integer was passed as $account_id
*/
static function cache_read($account_id, $need_active=false)
{
if (!is_numeric($account_id)) throw new Exception\WrongParameter('Not an integer!');
$account =& self::$request_cache[$account_id];
if (!isset($account)) // not in request cache --> try instance cache
{
$instance = self::getInstance();
$account = Cache::getCache($instance->config['install_id'], __CLASS__, 'account-'.$account_id);
if (!isset($account)) // not in instance cache --> read from backend
{
if (($account = $instance->backend->read($account_id)))
{
if ($instance->get_type($account_id) == 'u')
{
if (!isset($account['memberships'])) $account['memberships'] = $instance->backend->memberships($account_id);
}
else
{
if (!isset($account['members'])) $account['members'] = $instance->backend->members($account_id);
}
Cache::setCache($instance->config['install_id'], __CLASS__, 'account-'.$account_id, $account, self::READ_CACHE_TIMEOUT);
}
//error_log(__METHOD__."($account_id) read from backend ".array2string($account));
}
//else error_log(__METHOD__."($account_id) read from instance cache ".array2string($account));
}
// if required and not already set, query active members AND cache them too
if ($need_active && $account_id < 0 && !isset($account['members-active']))
{
$instance = self::getInstance();
$account['members-active'] = array();
foreach((array)$account['members'] as $id => $lid)
{
if ($instance->is_active($id)) $account['members-active'][$id] = $lid;
}
Cache::setCache($instance->config['install_id'], __CLASS__, 'account-'.$account_id, $account, self::READ_CACHE_TIMEOUT);
}
//error_log(__METHOD__."($account_id, $need_active) returning ".array2string($account));
return $account;
}
/**
* Internal functions not meant to use outside this class!!!
*/
/**
* Sets up session cache, now only used for search and name2id list
*
* Other account-data is cached on instance-level
*
* The cache is shared between all instances of the account-class and it can be save in the session,
* if use_session_cache is set to True
*
* @internal
*/
private static function setup_cache()
{
if (is_array(self::$cache)) return; // cache is already setup
if (self::$use_session_cache && is_object($GLOBALS['egw']->session))
{
self::$cache =& Cache::getSession('accounts_cache','phpgwapi');
}
//error_log(__METHOD__."() use_session_cache=".array2string(self::$use_session_cache).", is_array(self::\$cache)=".array2string(is_array(self::$cache)));
if (!is_array(self::$cache))
{
self::$cache = array();
}
}
public function __destruct() {
if (self::$_instance === $this)
{
self::$_instance = NULL;
}
}
}