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egroupware_official/phpgwapi/inc/class.accounts_ldap.inc.php

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<?php
/**
* API - accounts LDAP backend
*
* @link http://www.egroupware.org
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de> complete rewrite in 6/2006
*
* This class replaces the former accounts_ldap class written by
* Joseph Engo <jengo@phpgroupware.org>, Lars Kneschke <lkneschke@phpgw.de>,
* Miles Lott <milos@groupwhere.org> and Bettina Gille <ceb@phpgroupware.org>.
* Copyright (C) 2000 - 2002 Joseph Engo, Lars Kneschke
* Copyright (C) 2003 Lars Kneschke, Bettina Gille
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage accounts
* @version $Id$
*/
/**
* LDAP Backend for accounts
*
* The LDAP backend of the accounts class now stores accounts, groups and the memberships completly in LDAP.
* It does NO longer use the ACL class/table for group membership information.
* Nor does it use the phpgwAcounts schema (part of that information is stored via shadowAccount now).
*
* A user is recogniced by eGW, if he's in the user_context tree AND has the posixAccount object class AND
* matches the LDAP search filter specified in setup >> configuration.
* A group is recogniced by eGW, if it's in the group_context tree AND has the posixGroup object class.
* The group members are stored as memberuid's.
*
* The (positive) group-id's (gidnumber) of LDAP groups are mapped in this class to negative numeric
* account_id's to not conflict with the user-id's, as both share in eGW internaly the same numberspace!
*
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage accounts
* @access internal only use the interface provided by the accounts class
*/
class accounts_ldap
{
/**
* Name of mail attribute
*/
const MAIL_ATTR = 'mail';
/**
* resource with connection to the ldap server
*
* @var resource
*/
var $ds;
/**
* LDAP context for users, eg. ou=account,dc=domain,dc=com
*
* @var string
*/
var $user_context;
/**
* LDAP search filter for user accounts, eg. (uid=%user)
*
* @var string
*/
var $account_filter;
/**
* LDAP context for groups, eg. ou=groups,dc=domain,dc=com
*
* @var string
*/
var $group_context;
/**
* total number of found entries from get_list method
*
* @var int
*/
var $total;
var $ldapServerInfo;
/**
* required classe for user and groups
*
* @var array
*/
var $requiredObjectClasses = array(
'user' => array(
'top','person','organizationalperson','inetorgperson','posixaccount','shadowaccount'
),
'user-if-supported' => array( // these classes get added, if server supports them
'mozillaabpersonalpha', 'mozillaorgperson', 'evolutionperson',
'univentionperson', 'univentionmail', array('univentionobject', 'univentionObjectType' => 'users/user'),
),
'group' => array(
'top','posixgroup','groupofnames'
),
'group-if-supported' => array( // these classes get added, if servers supports them
'univentiongroup', array('univentionobject', 'univentionObjectType' => 'groups/group'),
)
);
/**
* Classes allowing to set a mail-address for a group and specify the memberaddresses as forwarding addresses
*
* $objectclass => $forward
* $objectclass => [$forward, $extra_attr, $keep_objectclass]
* $forward : name of attribute to set forwards for members mail addresses, false if not used/required
* $extra_attr : required attribute (eg. 'uid'), which need to be set, default none
* $keep_objectclass : true to not remove objectclass, if not mail set
*
* @var array
*/
var $group_mail_classes = array(
'dbmailforwardingaddress' => 'mailforwardingaddress',
'dbmailuser' => array('mailforwardingaddress','uid'),
'qmailuser' => array('mailforwardingaddress','uid'),
'mailaccount' => 'mailalias',
'univentiongroup' => array(false, false, true),
);
/**
* Reference to our frontend
*
* @var accounts
*/
private $frontend;
/**
* Instance of the ldap class
*
* @var ldap
*/
private $ldap;
/**
* does backend allow to change account_lid
*/
const CHANGE_ACCOUNT_LID = true;
/**
* does backend requires password to be set, before allowing to enable an account
*/
const REQUIRE_PASSWORD_FOR_ENABLE = false;
/**
* Constructor
*
* @param accounts $frontend reference to the frontend class, to be able to call it's methods if needed
* @return accounts_ldap
*/
function __construct(accounts $frontend)
{
$this->frontend = $frontend;
// enable the caching in the session, done by the accounts class extending this class.
$this->use_session_cache = true;
$this->ldap = new ldap(true);
$this->ds = $this->ldap->ldapConnect($this->frontend->config['ldap_host'],
$this->frontend->config['ldap_root_dn'],$this->frontend->config['ldap_root_pw']);
$this->user_context = $this->frontend->config['ldap_context'];
$this->account_filter = $this->frontend->config['ldap_search_filter'];
$this->group_context = $this->frontend->config['ldap_group_context'] ?
$this->frontend->config['ldap_group_context'] : $this->frontend->config['ldap_context'];
}
/**
* Reads the data of one account
*
* @param int $account_id numeric account-id
* @return array|boolean array with account data (keys: account_id, account_lid, ...) or false if account not found
*/
function read($account_id)
{
if (!(int)$account_id) return false;
if ($account_id < 0)
{
return $this->_read_group($account_id);
}
return $this->_read_user($account_id);
}
/**
* 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 $data array with account-data
* @return int|boolean the account_id or false on error
*/
function save(&$data)
{
$is_group = $data['account_id'] < 0 || $data['account_type'] === 'g';
$data_utf8 = translation::convert($data,translation::charset(),'utf-8');
$members = $data['account_members'];
if (!is_object($this->ldapServerInfo))
{
$this->ldapServerInfo = $this->ldap->getLDAPServerInfo($this->frontend->config['ldap_host']);
}
// common code for users and groups
// checks if accout_lid (dn) has been changed or required objectclass'es are missing
if ($data_utf8['account_id'] && $data_utf8['account_lid'])
{
// read the entry first, to check if the dn (account_lid) has changed
$sri = $is_group ? ldap_search($this->ds,$this->group_context,'gidnumber='.abs($data['account_id'])) :
ldap_search($this->ds,$this->user_context,'uidnumber='.$data['account_id']);
$old = ldap_get_entries($this->ds, $sri);
if (!$old['count'])
{
unset($old);
}
else
{
$old = ldap::result2array($old[0]);
$old['objectclass'] = array_map('strtolower', $old['objectclass']);
$key = false;
if ($is_group && ($key = array_search('namedobject',$old['objectclass'])) !== false ||
$is_group && ($old['cn'] != $data_utf8['account_lid'] || substr($old['dn'],0,3) != 'cn=') ||
!$is_group && ($old['uid'] != $data_utf8['account_lid'] || substr($old['dn'],0,4) != 'uid='))
{
// query the memberships to set them again later
if (!$is_group)
{
$memberships = $this->memberships($data['account_id']);
}
else
{
$members = $old ? $old['memberuid'] : $this->members($data['account_id']);
}
// if dn has changed --> delete the old entry, as we cant rename the dn
$this->delete($data['account_id']);
unset($old['dn']);
// removing the namedObject object-class, if it's included
if ($key !== false) unset($old['objectclass'][$key]);
$to_write = $old;
unset($old);
}
}
}
if (!$data['account_id']) // new account
{
if (!($data['account_id'] = $data_utf8['account_id'] = $this->_get_nextid($is_group ? 'g' : 'u')))
{
return false;
}
}
// check if we need to write the objectclass: new entry or required object classes are missing
if (!$old || array_diff($this->requiredObjectClasses[$is_group ? 'group' : 'user'],$old['objectclass']))
{
// additional objectclasse might be already set in $to_write or $old
if (!is_array($to_write['objectclass']))
{
$to_write['objectclass'] = $old ? $old['objectclass'] : array();
}
if (!$old) // for new accounts add additional addressbook object classes, if supported by server
{ // as setting them later might loose eg. password, if we are not allowed to read them
foreach($this->requiredObjectClasses[$is_group?'group-if-supported':'user-if-supported'] as $additional)
{
$add = array();
if (is_array($additional))
{
$add = $additional;
$additional = array_shift($add);
}
if ($this->ldapServerInfo->supportsObjectClass($additional))
{
$to_write['objectclass'][] = $additional;
if ($add) $to_write += $add;
}
}
}
$to_write['objectclass'] = array_values(array_unique(array_merge($to_write['objectclass'],
$this->requiredObjectClasses[$is_group ? 'group' : 'user'])));
}
if (!($dn = $old['dn']))
{
if (!$data['account_lid']) return false;
$dn = $is_group ? 'cn='.$data_utf8['account_lid'].','.$this->group_context :
'uid='.$data_utf8['account_lid'].','.$this->user_context;
}
// now we merge the user or group data
if ($is_group)
{
$to_write = $this->_merge_group($to_write, $data_utf8, $old);
$data['account_type'] = 'g';
$objectclass = $old ? $old['objectclass'] : $to_write['objectclass'];
if ($members || !$old && array_intersect(array('groupofnames','groupofuniquenames','univentiongroup'), $objectclass))
{
$to_write = array_merge($to_write, $this->set_members($members, $data['account_id'], $objectclass, $dn));
}
// check if we should set a mail address and forwards for each member
foreach($this->group_mail_classes as $objectclass => $forward)
{
$extra_attr = false;
$keep_objectclass = false;
if (is_array($forward)) list($forward,$extra_attr,$keep_objectclass) = $forward;
if ($this->ldapServerInfo->supportsObjectClass($objectclass) &&
($old && in_array($objectclass,$old['objectclass']) || $data_utf8['account_email'] || $old[static::MAIL_ATTR]))
{
if ($data_utf8['account_email']) // setting an email
{
if (!in_array($objectclass,$old ? $old['objectclass'] : $to_write['objectclass']))
{
if ($old) $to_write['objectclass'] = $old['objectclass'];
$to_write['objectclass'][] = $objectclass;
}
if ($extra_attr) $to_write[$extra_attr] = $data_utf8['account_lid'];
$to_write[static::MAIL_ATTR] = $data_utf8['account_email'];
if ($forward)
{
if (!$members) $members = $this->members($data['account_id']);
$to_write[$forward] = array();
foreach (array_keys($members) as $member)
{
if (($email = $this->id2name($member,'account_email')))
{
$to_write[$forward][] = $email;
}
}
}
}
elseif($old) // remove the mail and forwards only for existing entries
{
$to_write[static::MAIL_ATTR] = array();
if ($forward) $to_write[$forward] = array();
if ($extra_attr) $to_write[$extra_attr] = array();
if (!$keep_objectclass && ($key = array_search($objectclass,$old['objectclass'])))
{
$to_write['objectclass'] = $old['objectclass'];
unset($to_write['objectclass'][$key]);
$to_write['objectclass'] = array_values($to_write['objectclass']);
}
}
break;
}
}
}
else
{
$to_write = $this->_merge_user($to_write,$data_utf8,!$old);
// make sure multiple email-addresses in the mail attribute "survive"
if (isset($to_write[static::MAIL_ATTR]) && count($old[static::MAIL_ATTR]) > 1)
{
$mail = $old[static::MAIL_ATTR];
$mail[0] = $to_write[static::MAIL_ATTR];
$to_write[static::MAIL_ATTR] = array_values(array_unique($mail));
}
$data['account_type'] = 'u';
// Check if an account already exists as system user, and if it does deny creation
if (!$GLOBALS['egw_info']['server']['ldap_allow_systemusernames'] && !$old &&
function_exists('posix_getpwnam') && posix_getpwnam($data['account_lid']))
{
throw new egw_exception_wrong_userinput(lang('There already is a system-user with this name. User\'s should not have the same name as a systemuser'));
}
}
// remove memberuid when adding a group
if(!$old && is_array($to_write['memberuid']) && empty($to_write['memberuid'])) {
unset($to_write['memberuid']);
}
//echo "<p>ldap_".($old ? 'modify' : 'add')."(,$dn,".print_r($to_write,true).")</p>\n";
// modifying or adding the entry
if ($old && !@ldap_modify($this->ds,$dn,$to_write) ||
!$old && !@ldap_add($this->ds,$dn,$to_write))
{
$err = true;
if ($is_group && ($key = array_search('groupofnames',$to_write['objectclass'])) !== false)
{
// try again with removed groupOfNames stuff, as I cant detect if posixGroup is a structural object
unset($to_write['objectclass'][$key]);
$to_write['objectclass'] = array_values($to_write['objectclass']);
unset($to_write['member']);
$err = $old ? !ldap_modify($this->ds,$dn,$to_write) : !ldap_add($this->ds,$dn,$to_write);
}
if ($err)
{
error_log(__METHOD__."() ldap_".($old ? 'modify' : 'add')."(,'$dn',".array2string($to_write).") --> ldap_error()=".ldap_error($this->ds));
return false;
}
}
if ($memberships)
{
$this->set_memberships($memberships,$data['account_id']);
}
return $data['account_id'];
}
/**
* Delete one account, deletes also all acl-entries for that account
*
* @param int $account_id numeric account_id
* @return boolean true on success, false otherwise
*/
function delete($account_id)
{
if (!(int)$account_id) return false;
if ($account_id < 0)
{
$sri = ldap_search($this->ds, $this->group_context, 'gidnumber=' . abs($account_id));
}
else
{
// remove the user's memberships
$this->set_memberships(array(),$account_id);
$sri = ldap_search($this->ds, $this->user_context, 'uidnumber=' . $account_id);
}
if (!$sri) return false;
$allValues = ldap_get_entries($this->ds, $sri);
if (!$allValues['count']) return false;
return ldap_delete($this->ds, $allValues[0]['dn']);
}
/**
* Reads the data of one group
*
* @internal
* @param int $account_id numeric account-id (< 0 as it's for a group)
* @return array|boolean array with account data (keys: account_id, account_lid, ...) or false if account not found
*/
protected function _read_group($account_id)
{
$group = array();
if (!is_object($this->ldapServerInfo))
{
$this->ldapServerInfo = $this->ldap->getLDAPServerInfo($this->frontend->config['ldap_host']);
}
foreach(array_keys($this->group_mail_classes) as $objectclass)
{
if ($this->ldapServerInfo->supportsObjectClass($objectclass))
{
$group['mailAllowed'] = $objectclass;
break;
}
}
$sri = ldap_search($this->ds, $this->group_context,'(&(objectClass=posixGroup)(gidnumber=' . abs($account_id).'))',
array('dn', 'gidnumber', 'cn', 'objectclass', static::MAIL_ATTR, 'memberuid', 'description'));
$ldap_data = ldap_get_entries($this->ds, $sri);
if (!$ldap_data['count'])
{
return false; // group not found
}
$data = translation::convert($ldap_data[0],'utf-8');
unset($data['objectclass']['count']);
$group += array(
'account_dn' => $data['dn'],
'account_id' => -$data['gidnumber'][0],
'account_lid' => $data['cn'][0],
'account_type' => 'g',
'account_firstname' => $data['cn'][0],
'account_lastname' => lang('Group'),
'account_fullname' => lang('Group').' '.$data['cn'][0],
'objectclass' => array_map('strtolower', $data['objectclass']),
'account_email' => $data[static::MAIL_ATTR][0],
'members' => array(),
'account_description' => $data['description'][0],
);
if (isset($data['memberuid']))
{
unset($data['memberuid']['count']);
foreach($data['memberuid'] as $lid)
{
if (($id = $this->name2id($lid, 'account_lid', 'u')))
{
$group['members'][$id] = $lid;
}
}
}
return $group;
}
/**
* Reads the data of one user
*
* @internal
* @param int $account_id numeric account-id
* @return array|boolean array with account data (keys: account_id, account_lid, ...) or false if account not found
*/
protected function _read_user($account_id)
{
$sri = ldap_search($this->ds, $this->user_context, '(&(objectclass=posixAccount)(uidnumber=' . (int)$account_id.'))',
array('dn','uidnumber','uid','gidnumber','givenname','sn','cn',static::MAIL_ATTR,'userpassword','telephonenumber',
'shadowexpire','shadowlastchange','homedirectory','loginshell','createtimestamp','modifytimestamp'));
$ldap_data = ldap_get_entries($this->ds, $sri);
if (!$ldap_data['count'])
{
return false; // user not found
}
$data = translation::convert($ldap_data[0],'utf-8');
$utc_diff = date('Z');
$user = array(
'account_dn' => $data['dn'],
'account_id' => (int)$data['uidnumber'][0],
'account_lid' => $data['uid'][0],
'account_type' => 'u',
'account_primary_group' => -$data['gidnumber'][0],
'account_firstname' => $data['givenname'][0],
'account_lastname' => $data['sn'][0],
'account_email' => $data[static::MAIL_ATTR][0],
'account_fullname' => $data['cn'][0],
'account_pwd' => $data['userpassword'][0],
'account_phone' => $data['telephonenumber'][0],
// both status and expires are encoded in the single shadowexpire value in LDAP
// - if it's unset an account is enabled AND does never expire
// - if it's set to 0, the account is disabled
// - if it's set to > 0, it will or already has expired --> acount is active if it not yet expired
// shadowexpire is in days since 1970/01/01 (equivalent to a timestamp (int UTC!) / (24*60*60)
'account_status' => isset($data['shadowexpire']) && $data['shadowexpire'][0]*24*3600+$utc_diff < time() ? false : 'A',
'account_expires' => isset($data['shadowexpire']) && $data['shadowexpire'][0] ? $data['shadowexpire'][0]*24*3600+$utc_diff : -1, // LDAP date is in UTC
'account_lastpwd_change' => isset($data['shadowlastchange']) ? $data['shadowlastchange'][0]*24*3600+($data['shadowlastchange'][0]!=0?$utc_diff:0) : null,
// lastlogin and lastlogin from are not availible via the shadowAccount object class
// 'account_lastlogin' => $data['phpgwaccountlastlogin'][0],
// 'account_lastloginfrom' => $data['phpgwaccountlastloginfrom'][0],
'person_id' => $data['uid'][0], // id of associated contact
'account_created' => isset($data['createtimestamp'][0]) ? self::accounts_ldap2ts($data['createtimestamp'][0]) : null,
'account_modified' => isset($data['modifytimestamp'][0]) ? self::accounts_ldap2ts($data['modifytimestamp'][0]) : null,
);
//echo "<p align=right>accounts_ldap::_read_user($account_id): shadowexpire={$data['shadowexpire'][0]} --> account_expires=$user[account_expires]=".date('Y-m-d H:i',$user['account_expires'])."</p>\n";
if ($this->frontend->config['ldap_extra_attributes'])
{
$user['homedirectory'] = $data['homedirectory'][0];
$user['loginshell'] = $data['loginshell'][0];
}
return $user;
}
/**
* Merges the group releavant account data from $data into $to_write
*
* @internal
* @param array $to_write data to write to ldap incl. objectclass ($data is NOT yet merged)
* @param array $data array with account-data in utf-8
* @return array merged data
*/
protected function _merge_group($to_write,$data,$old=null)
{
$to_write['gidnumber'] = abs($data['account_id']);
$to_write['cn'] = $data['account_lid'];
if (!empty($data['account_description']) || $old)
{
$to_write['description'] = !empty($data['account_description']) ? $data['account_description'] : array();
}
return $to_write;
}
/**
* Merges the user releavant account data from $data into $to_write
*
* @internal
* @param array $to_write data to write to ldap incl. objectclass ($data is NOT yet merged)
* @param array $data array with account-data in utf-8
* @param boolean $new_entry
* @return array merged data
*/
protected function _merge_user($to_write,$data,$new_entry)
{
//echo "<p>accounts_ldap::_merge_user(".print_r($to_write,true).','.print_r($data,true).",$new_entry)</p>\n";
$to_write['uidnumber'] = $data['account_id'];
$to_write['uid'] = $data['account_lid'];
$to_write['gidnumber'] = abs($data['account_primary_group']);
if (!$new_entry || $data['account_firstname'])
{
$to_write['givenname'] = $data['account_firstname'] ? $data['account_firstname'] : array();
}
$to_write['sn'] = $data['account_lastname'];
if (!$new_entry || $data['account_email'])
{
$to_write[static::MAIL_ATTR] = $data['account_email'] ? $data['account_email'] : array();
}
$to_write['cn'] = $data['account_fullname'] ? $data['account_fullname'] : $data['account_firstname'].' '.$data['account_lastname'];
$utc_diff = date('Z');
if (isset($data['account_passwd']) && $data['account_passwd'])
{
if (preg_match('/^[a-f0-9]{32}$/', $data['account_passwd'])) // md5 --> ldap md5
{
$data['account_passwd'] = setup_cmd_ldap::hash_sql2ldap($data['account_passwd']);
}
elseif (!preg_match('/^\\{[a-z5]{3,5}\\}.+/i',$data['account_passwd'])) // if it's not already entcrypted, do so now
{
$data['account_passwd'] = auth::encrypt_ldap($data['account_passwd']);
}
$to_write['userpassword'] = $data['account_passwd'];
$to_write['shadowlastchange'] = round((time()-$utc_diff) / (24*3600));
}
// both status and expires are encoded in the single shadowexpire value in LDAP
// - if it's unset an account is enabled AND does never expire
// - if it's set to 0, the account is disabled
// - if it's set to > 0, it will or already has expired --> acount is active if it not yet expired
// shadowexpire is in days since 1970/01/01 (equivalent to a timestamp (int UTC!) / (24*60*60)
$shadowexpire = ($data['account_expires']-$utc_diff) / (24*3600);
//echo "<p align=right>account_expires=".date('Y-m-d H:i',$data['account_expires'])." --> $shadowexpire --> ".date('Y-m-d H:i',$account_expire)."</p>\n";
$to_write['shadowexpire'] = !$data['account_status'] ?
($data['account_expires'] != -1 && $data['account_expires'] < time() ? round($shadowexpire) : 0) :
($data['account_expires'] != -1 ? round($shadowexpire) : array()); // array() = unset value
if ($new_entry && is_array($to_write['shadowexpire']) && !count($to_write['shadowexpire']))
{
unset($to_write['shadowexpire']); // gives protocoll error otherwise
}
//error_log(__METHOD__.__LINE__.$data['account_lid'].'#'.$data['account_lastpwd_change'].'#');
if ($data['account_lastpwd_change']) $to_write['shadowlastchange'] = round(($data['account_lastpwd_change']-$utc_diff)/(24*3600));
if (isset($data['account_lastpwd_change']) && $data['account_lastpwd_change']==0) $to_write['shadowlastchange'] = 0;
// lastlogin and lastlogin from are not availible via the shadowAccount object class
// $to_write['phpgwaccountlastlogin'] = $data['lastlogin'];
// $to_write['phpgwaccountlastloginfrom'] = $data['lastloginfrom'];
if ($this->frontend->config['ldap_extra_attributes'])
{
if (isset($data['homedirectory'])) $to_write['homedirectory'] = $data['homedirectory'];
if (isset($data['loginshell'])) $to_write['loginshell'] = $data['loginshell'] ? $data['loginshell'] : array();
}
if ($new_entry && !isset($to_write['homedirectory']))
{
$to_write['homedirectory'] = '/dev/null'; // is a required attribute of posixAccount
}
return $to_write;
}
/**
* Searches / lists accounts: users and/or groups
*
* @param array with the following keys:
* @param $param['type'] string/int 'accounts', 'groups', 'owngroups' (groups the user is a member of), 'both'
* 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['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['offset'] int - number of matches to return if start given, default use the value in the prefs
* @param $param['objectclass'] boolean return objectclass(es) under key 'objectclass' in each account
* @return array with account_id => data pairs, data is an array with account_id, account_lid, account_firstname,
* account_lastname, person_id (id of the linked addressbook entry), account_status, account_expires, account_primary_group
*/
function search($param)
{
//error_log(__METHOD__."(".array2string($param).")");
$account_search =& accounts::$cache['account_search'];
// check if the query is cached
$serial = serialize($param);
if (isset($account_search[$serial]))
{
$this->total = $account_search[$serial]['total'];
return $account_search[$serial]['data'];
}
// if it's a limited query, check if the unlimited query is cached
$start = $param['start'];
if (!($maxmatchs = $GLOBALS['egw_info']['user']['preferences']['common']['maxmatchs'])) $maxmatchs = 15;
if (!($offset = $param['offset'])) $offset = $maxmatchs;
unset($param['start']);
unset($param['offset']);
$unl_serial = serialize($param);
if (isset($account_search[$unl_serial]))
{
$this->total = $account_search[$unl_serial]['total'];
$sortedAccounts = $account_search[$unl_serial]['data'];
}
else // we need to run the unlimited query
{
$query = ldap::quote(strtolower($param['query']));
$accounts = array();
if($param['type'] != 'groups')
{
$filter = "(&(objectclass=posixaccount)";
if (!empty($query) && $query != '*')
{
switch($param['query_type'])
{
case 'all':
default:
$query = '*'.$query;
// fall-through
case 'start':
$query .= '*';
// fall-through
case 'exact':
$filter .= "(|(uid=$query)(sn=$query)(cn=$query)(givenname=$query)(mail=$query))";
break;
case 'firstname':
case 'lastname':
case 'lid':
case 'email':
$to_ldap = array(
'firstname' => 'givenname',
'lastname' => 'sn',
'lid' => 'uid',
'email' => static::MAIL_ATTR,
);
$filter .= '('.$to_ldap[$param['query_type']].'=*'.$query.'*)';
break;
}
}
// add account_filter to filter (user has to be '*', as we otherwise only search uid's)
$filter .= str_replace(array('%user','%domain'),array('*',$GLOBALS['egw_info']['user']['domain']),$this->account_filter);
$filter .= ')';
if ($param['type'] != 'both')
{
// folw:
// - first query only few attributes for sorting and throwing away not needed results
// - throw away & sort
// - fetch relevant accounts with full information
// - map and resolve
$propertyMap = array(
'account_id' => 'uidnumber',
'account_lid' => 'uid',
'account_firstname' => 'givenname',
'account_lastname' => 'sn',
'account_email' => 'email',
'account_fullname' => 'cn',
'account_primary_group' => 'gidnumber',
);
$orders = explode(',',$param['order']);
$order = isset($propertyMap[$orders[0]]) ? $propertyMap[$orders[0]] : 'uid';
$sri = ldap_search($this->ds, $this->user_context, $filter,array('uid', $order));
$fullSet = array();
foreach ((array)ldap_get_entries($this->ds, $sri) as $key => $entry)
{
if ($key !== 'count') $fullSet[$entry['uid'][0]] = $entry[$order][0];
}
if (is_numeric($param['type'])) // return only group-members
{
$relevantAccounts = array();
$sri = ldap_search($this->ds,$this->group_context,"(&(objectClass=posixGroup)(gidnumber=" . abs($param['type']) . "))",array('memberuid'));
$group = ldap_get_entries($this->ds, $sri);
$fullSet = $group[0]['memberuid'] ? array_intersect_key($fullSet, array_flip($group[0]['memberuid'])) : array();
}
$totalcount = count($fullSet);
$sortFn = $param['sort'] == 'DESC' ? 'arsort' : 'asort';
$sortFn($fullSet);
$relevantAccounts = is_numeric($start) ? array_slice(array_keys($fullSet), $start, $offset) : array_keys($fullSet);
$filter = '(&(objectclass=posixaccount)(|(uid='.implode(')(uid=',$relevantAccounts).'))' . $this->account_filter.')';
$filter = str_replace(array('%user','%domain'),array('*',$GLOBALS['egw_info']['user']['domain']),$filter);
}
$sri = ldap_search($this->ds, $this->user_context, $filter,array('uid','uidNumber','givenname','sn',static::MAIL_ATTR,'shadowExpire','createtimestamp','modifytimestamp','objectclass','gidNumber'));
//echo "<p>ldap_search(,$this->user_context,'$filter',) ".($sri ? '' : ldap_error($this->ds)).microtime()."</p>\n";
$utc_diff = date('Z');
foreach(ldap_get_entries($this->ds, $sri) as $allVals)
{
settype($allVals,'array');
$test = @$allVals['uid'][0];
if (!$this->frontend->config['global_denied_users'][$test] && $allVals['uid'][0])
{
$account = Array(
'account_id' => $allVals['uidnumber'][0],
'account_lid' => translation::convert($allVals['uid'][0],'utf-8'),
'account_type' => 'u',
'account_firstname' => translation::convert($allVals['givenname'][0],'utf-8'),
'account_lastname' => translation::convert($allVals['sn'][0],'utf-8'),
'account_status' => isset($allVals['shadowexpire'][0]) && $allVals['shadowexpire'][0]*24*3600-$utc_diff < time() ? false : 'A',
'account_expires' => isset($allVals['shadowexpire']) && $allVals['shadowexpire'][0] ? $allVals['shadowexpire'][0]*24*3600+$utc_diff : -1, // LDAP date is in UTC
'account_email' => $allVals[static::MAIL_ATTR][0],
'account_created' => isset($allVals['createtimestamp'][0]) ? self::accounts_ldap2ts($allVals['createtimestamp'][0]) : null,
'account_modified' => isset($allVals['modifytimestamp'][0]) ? self::accounts_ldap2ts($allVals['modifytimestamp'][0]) : null,
'account_primary_group' => (string)-$allVals['gidnumber'][0],
);
//error_log(__METHOD__."() ldap=".array2string($allVals)." --> account=".array2string($account));
if ($param['active'] && !$this->frontend->is_active($account))
{
if (isset($totalcount)) --$totalcount;
continue;
}
$account['account_fullname'] = common::display_fullname($account['account_lid'],$account['account_firstname'],$account['account_lastname'],$allVals['uidnumber'][0]);
// return objectclass(es)
if ($param['objectclass'])
{
$account['objectclass'] = array_map('strtolower', $allVals['objectclass']);
unset($account['objectclass']['count']);
}
$accounts[$account['account_id']] = $account;
}
}
}
if ($param['type'] == 'groups' || $param['type'] == 'both')
{
if(empty($query) || $query == '*')
{
$filter = '(objectclass=posixgroup)';
}
else
{
switch($param['query_type'])
{
case 'all':
default:
$query = '*'.$query;
// fall-through
case 'start':
$query .= '*';
// fall-through
case 'exact':
break;
}
$filter = "(&(objectclass=posixgroup)(cn=$query))";
}
$sri = ldap_search($this->ds, $this->group_context, $filter,array('cn','gidNumber'));
foreach((array)ldap_get_entries($this->ds, $sri) as $allVals)
{
settype($allVals,'array');
$test = $allVals['cn'][0];
if (!$this->frontend->config['global_denied_groups'][$test] && $allVals['cn'][0])
{
$accounts[(string)-$allVals['gidnumber'][0]] = Array(
'account_id' => -$allVals['gidnumber'][0],
'account_lid' => translation::convert($allVals['cn'][0],'utf-8'),
'account_type' => 'g',
'account_firstname' => translation::convert($allVals['cn'][0],'utf-8'),
'account_lastname' => lang('Group'),
'account_status' => 'A',
'account_fullname' => translation::convert($allVals['cn'][0],'utf-8'),
);
if (isset($totalcount)) ++$totalcount;
}
}
}
// sort the array
$this->_callback_sort = strtoupper($param['sort']);
$this->_callback_order = empty($param['order']) ? array('account_lid') : explode(',',$param['order']);
$sortedAccounts = $accounts;
uasort($sortedAccounts,array($this,'_sort_callback'));
$this->total = isset($totalcount) ? $totalcount : count($accounts);
// if totalcount is set, $sortedAccounts is NOT the full set, but already a limited set!
if (!isset($totalcount))
{
$account_search[$unl_serial]['data'] = $sortedAccounts;
$account_search[$unl_serial]['total'] = $this->total;
}
}
//echo "<p>accounts_ldap::search() found $this->total: ".microtime()."</p>\n";
// return only the wanted accounts
reset($sortedAccounts);
if(is_numeric($start) && is_numeric($offset))
{
$account_search[$serial]['total'] = $this->total;
return $account_search[$serial]['data'] = isset($totalcount) ? $sortedAccounts : array_slice($sortedAccounts, $start, $offset);
}
return $sortedAccounts;
}
/**
* DESC or ASC
*
* @var string
*/
private $_callback_sort = 'ASC';
/**
* column_names to sort by
*
* @var array
*/
private $_callback_order = array('account_lid');
/**
* Sort callback for uasort
*
* @param array $a
* @param array $b
* @return int
*/
function _sort_callback($a,$b)
{
foreach($this->_callback_order as $col )
{
if($this->_callback_sort != 'DESC')
{
$cmp = strcasecmp( $a[$col], $b[$col] );
}
else
{
$cmp = strcasecmp( $b[$col], $a[$col] );
}
if ( $cmp != 0 )
{
return $cmp;
}
}
return 0;
}
/**
* Creates a timestamp from the date returned by the ldap server
*
* @internal
* @param string $date YYYYmmddHHiiss
* @return int
*/
protected static function accounts_ldap2ts($date)
{
if (!empty($date))
{
return gmmktime(substr($date,8,2),substr($date,10,2),substr($date,12,2),
substr($date,4,2),substr($date,6,2),substr($date,0,4));
}
return NULL;
}
/**
* 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 $account_type u = user, g = group, default null = try both
* @return int|false numeric account_id or false on error ($name not found)
*/
function name2id($_name,$which='account_lid',$account_type=null)
{
$name = ldap::quote(translation::convert($_name,translation::charset(),'utf-8'));
if ($which == 'account_lid' && $account_type !== 'u') // groups only support account_lid
{
$sri = ldap_search($this->ds, $this->group_context, '(&(cn=' . $name . ')(objectclass=posixgroup))', array('gidNumber'));
$allValues = ldap_get_entries($this->ds, $sri);
if (@$allValues[0]['gidnumber'][0])
{
return -$allValues[0]['gidnumber'][0];
}
}
$to_ldap = array(
'account_lid' => 'uid',
'account_email' => static::MAIL_ATTR,
'account_fullname' => 'cn',
);
if (!isset($to_ldap[$which]) || $account_type === 'g') {
return False;
}
$sri = ldap_search($this->ds, $this->user_context, '(&('.$to_ldap[$which].'=' . $name . ')(objectclass=posixaccount))', array('uidNumber'));
$allValues = ldap_get_entries($this->ds, $sri);
if (@$allValues[0]['uidnumber'][0])
{
return (int)$allValues[0]['uidnumber'][0];
}
return False;
}
/**
* 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 $account_id numerica account_id
* @param string $which ='account_lid' type to convert to: account_lid (default), account_email, ...
* @return string/false converted value or false on error ($account_id not found)
*/
function id2name($account_id,$which='account_lid')
{
return $this->frontend->id2name($account_id,$which);
}
/**
* Update the last login timestamps and the IP
*
* @param int $_account_id
* @param string $ip
* @return int lastlogin time
*/
function update_lastlogin($_account_id, $ip)
{
unset($_account_id, $ip);
return false; // not longer supported
}
/**
* Query memberships of a given account
*
* @param int $account_id
* @return array|boolean array with account_id => account_lid pairs or false if account not found
*/
function memberships($account_id)
{
if (!(int) $account_id || !($account_lid = $this->id2name($account_id))) return false;
$sri = ldap_search($this->ds,$this->group_context,'(&(objectClass=posixGroup)(memberuid='.ldap::quote($account_lid).'))',array('cn','gidnumber'));
$memberships = array();
foreach((array)ldap_get_entries($this->ds, $sri) as $key => $data)
{
if ($key === 'count') continue;
$memberships[(string) -$data['gidnumber'][0]] = $data['cn'][0];
}
//echo "accounts::memberships($account_id)"; _debug_array($memberships);
return $memberships;
}
/**
* Query the members of a group
*
* @param int $_gid
* @return array with uidnumber => uid pairs
*/
function members($_gid)
{
if (!is_numeric($_gid))
{
// try to recover
$_gid = $this->name2id($_gid,'account_lid','g');
if (!is_numeric($_gid)) return false;
}
$gid = abs($_gid); // our gid is negative!
$sri = ldap_search($this->ds,$this->group_context,"(&(objectClass=posixGroup)(gidnumber=$gid))",array('memberuid'));
$group = ldap_get_entries($this->ds, $sri);
$members = array();
if (isset($group[0]['memberuid']))
{
unset($group[0]['memberuid']['count']);
foreach($group[0]['memberuid'] as $lid)
{
if (($id = $this->name2id($lid, 'account_lid', 'u')))
{
$members[$id] = $lid;
}
}
}
//echo "accounts_ldap::members($gid)"; _debug_array($members);
return $members;
}
/**
* Sets the memberships of the given account
*
* @param array $groups array with gidnumbers
* @param int $account_id uidnumber
*/
function set_memberships($groups,$account_id)
{
//echo "<p>accounts_ldap::set_memberships(".print_r($groups,true).",$account_id)</p>\n";
// remove not longer existing memberships
if (($old_memberships = $this->memberships($account_id)))
{
$old_memberships = array_keys($old_memberships);
foreach(array_diff($old_memberships,$groups) as $gid)
{
if (($members = $this->members($gid)))
{
unset($members[$account_id]);
$this->set_members($members,$gid);
}
}
}
// adding new memberships
foreach($old_memberships ? array_diff($groups,$old_memberships) : $groups as $gid)
{
$members = $this->members($gid);
$members[$account_id] = $this->id2name($account_id);
$this->set_members($members,$gid);
}
}
/**
* Set the members of a group
*
* @param array $members array with uidnumber or uid's
* @param int $gid gidnumber of group to set
* @param array $objectclass =null should we set the member and uniqueMember attributes (groupOf(Unique)Names|univentionGroup) (default detect it)
* @param string $use_cn =null if set $cn is used instead $gid and the attributes are returned, not written to ldap
* @param boolean $uniqueMember =null should we set the uniqueMember attribute (default detect it)
* @return boolean/array false on failure, array or true otherwise
*/
function set_members($members, $gid, array $objectclass=null, $use_cn=null)
{
//echo "<p>accounts_ldap::set_members(".print_r($members,true).",$gid)</p>\n";
if (!($cn = $use_cn) && !($cn = $this->id2name($gid))) return false;
// do that group is a groupOf(Unique)Names or univentionGroup?
if (is_null($objectclass)) $objectclass = $this->id2name($gid,'objectclass');
$to_write = array('memberuid' => array());
foreach((array)$members as $key => $member)
{
$member_dn = $this->id2name($member, 'account_dn');
if (is_numeric($member)) $member = $this->id2name($member);
if ($member)
{
$to_write['memberuid'][] = $member;
if (in_array('groupofnames', $objectclass))
{
$to_write['member'][] = $member_dn;
}
if (array_intersect(array('groupofuniquenames','univentiongroup'), $objectclass))
{
$to_write['uniquemember'][] = $member_dn;
}
}
}
// hack as groupOfNames requires the member attribute
if (in_array('groupofnames', $objectclass) && !$to_write['member'])
{
$to_write['member'][] = 'uid=dummy'.','.$this->user_context;
}
if (array_intersect(array('groupofuniquenames','univentiongroup'), $objectclass) && !$to_write['uniquemember'])
{
$to_write['uniquemember'][] = 'uid=dummy'.','.$this->user_context;
}
if ($use_cn) return $to_write;
// set the member email addresses as forwards
if ($this->id2name($gid,'account_email') && ($objectclass = $this->id2name($gid,'mailAllowed')))
{
$forward = $this->group_mail_classes[$objectclass];
if (is_array($forward)) list($forward,$extra_attr) = $forward;
if ($extra_attr && ($uid = $this->id2name($gid))) $to_write[$extra_attr] = $uid;
if ($forward)
{
$to_write[$forward] = array();
foreach($members as $key => $member)
{
if (($email = $this->id2name($member,'account_email'))) $to_write[$forward][] = $email;
}
}
}
if (!ldap_modify($this->ds,'cn='.ldap::quote($cn).','.$this->group_context,$to_write))
{
echo "ldap_modify(,'cn=$cn,$this->group_context',".print_r($to_write,true)."))\n";
return false;
}
return true;
}
/**
* Using the common functions next_id and last_id, find the next available account_id
*
* @internal
* @param string $account_type ='u' (optional, default to 'u')
* @return int|boolean integer account_id (negative for groups) or false if none is free anymore
*/
protected function _get_nextid($account_type='u')
{
$min = $this->frontend->config['account_min_id'] ? $this->frontend->config['account_min_id'] : 0;
$max = $this->frontend->config['account_max_id'] ? $this->frontend->config['account_max_id'] : 0;
// prefer ids above 1000 (below reserved for system users under AD or Linux),
// if that's possible within what is configured, or nothing is configured
if ($min < 1000 && (!$max || $max > 1000)) $min = 1000;
if ($account_type == 'g')
{
$type = 'groups';
$sign = -1;
}
else
{
$type = 'accounts';
$sign = 1;
}
/* Loop until we find a free id */
do
{
$account_id = (int) common::next_id($type,$min,$max);
}
while ($account_id && ($this->frontend->exists($sign * $account_id) || // check need to include the sign!
$this->frontend->exists(-1 * $sign * $account_id) ||
// if sambaadmin is installed, call it to check there's not yet a relative id (last part of SID) with that number
// to ease migration to AD or Samba4
$GLOBALS['egw_info']['apps']['sambaadmin'] && ExecMethod2('sambaadmin.sosambaadmin.sidExists', $account_id)));
if (!$account_id || $max && $account_id > $max)
{
return False;
}
return $sign * $account_id;
}
/**
* __wakeup function gets called by php while unserializing the object to reconnect with the ldap server
*/
function __wakeup()
{
$this->ds = $this->ldap->ldapConnect($this->frontend->config['ldap_host'],
$this->frontend->config['ldap_root_dn'],$this->frontend->config['ldap_root_pw']);
}
}
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