mirror of
https://github.com/EGroupware/egroupware.git
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219 lines
6.7 KiB
PHP
219 lines
6.7 KiB
PHP
<?php
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/**
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* Addressbook - ADS Backend
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*
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* @link http://www.egroupware.org
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* @author Ralf Becker <rb@stylite.de>
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* @package addressbook
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @version $Id$
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*/
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/**
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* Active directory backend for accounts (not yet AD contacts)
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*
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* We use ADS string representation of objectGUID as contact ID and UID.
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*
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* Unfortunatly Samba4 and active directory of win2008r2 differn on how to search for an objectGUID:
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* - Samba4 can only search for string representation eg. (objectGUID=2336A3FC-EDBD-42A2-9EEB-BD7A5DD2804E)
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* - win2008r2 can only search for hex representation eg. (objectGUID=\FC\A3\36\23\BD\ED\A2\42\9E\EB\BD\7A\5D\D2\80\4E)
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* We could use both filters or-ed together, for now we detect Samba4 and use string GUID for it.
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*
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* All values used to construct filters need to run through ldap::quote(),
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* to be save against LDAP query injection!!!
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*/
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class addressbook_ads extends addressbook_ldap
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{
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/**
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* LDAP searches only a limited set of attributes for performance reasons,
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* you NEED an index for that columns, ToDo: make it configurable
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* minimum: $this->columns_to_search = array('n_family','n_given','org_name','email');
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*/
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var $search_attributes = array(
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'n_family','n_middle','n_given','org_name','org_unit',
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'adr_one_location','note','email','samaccountname',
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);
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/**
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* Filter used for accounts addressbook
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* @var string
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*/
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var $accountsFilter = '(objectCategory=person)';
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/**
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* Attribute used for DN
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*
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* @var string
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*/
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var $dn_attribute='cn';
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/**
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* Do NOT attempt to change DN (dn-attribute can NOT be part of schemas used in addressbook!)
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*
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* Set here to true, as accounts can be stored in different containers and CN is not used as n_fn (displayName is)
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*
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* @var boolean
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*/
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var $never_change_dn = true;
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/**
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* Accounts ADS object
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*
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* @var accounts_ads
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*/
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protected $accounts_ads;
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/**
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* ADS is Samba4 (true), otherwise false
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*
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* @var boolean
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*/
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public $is_samba4 = false;
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/**
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* constructor of the class
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*
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* @param array $ldap_config=null default use from $GLOBALS['egw_info']['server']
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* @param resource $ds=null ldap connection to use
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*/
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function __construct(array $ldap_config=null, $ds=null)
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{
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$this->accountName = $GLOBALS['egw_info']['user']['account_lid'];
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if ($ldap_config)
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{
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$this->ldap_config = $ldap_config;
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}
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else
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{
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$this->ldap_config =& $GLOBALS['egw_info']['server'];
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}
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$this->accounts_ads = $GLOBALS['egw']->accounts->backend;
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//$this->personalContactsDN = 'ou=personal,ou=contacts,'. $this->ldap_config['ldap_contact_context'];
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//$this->sharedContactsDN = 'ou=shared,ou=contacts,'. $this->ldap_config['ldap_contact_context'];
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$this->allContactsDN = $this->accountContactsDN = $this->accounts_ads->ads_context();
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if ($ds)
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{
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$this->ds = $ds;
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}
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else
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{
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$this->connect();
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}
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$this->ldapServerInfo = ldapserverinfo::get($this->ds, $this->ldap_config['ads_host']);
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$this->is_samba4 = $this->ldapServerInfo->serverType == SAMBA4_LDAPSERVER;
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// AD seems to use user, instead of inetOrgPerson
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unset($this->schema2egw['posixaccount']);
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$this->schema2egw['user'] = array_merge($this->schema2egw['inetorgperson'], array(
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'account_id' => 'objectsid',
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'id' => 'objectguid',
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'uid' => 'objectguid',
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'n_fn' => 'displayname', // leave CN used in DN untouched
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'accountexpires', 'useraccountcontrol', // needed to exclude deactivated or expired accounts
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));
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unset($this->schema2egw['user']['n_fileas']);
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unset($this->schema2egw['inetorgperson']);
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foreach($this->schema2egw as $schema => $attributes)
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{
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$this->all_attributes = array_merge($this->all_attributes,array_values($attributes));
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}
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$this->all_attributes = array_values(array_unique($this->all_attributes));
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$this->charset = translation::charset();
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}
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/**
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* connect to LDAP server
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*
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* @param boolean $admin=false true (re-)connect with admin not user credentials, eg. to modify accounts
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*/
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function connect($admin=false)
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{
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$this->ds = $this->accounts_ads->ldap_connection();
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}
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/**
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* Return LDAP filter for contact id
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*
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* @param string $contact_id
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* @return string
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*/
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protected function id_filter($contact_id)
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{
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// check that GUID eg. from URL contains only valid hex characters and dash
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// we cant use ldap::quote() for win2008r2 hex GUID, as it contains backslashes
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if (!preg_match('/^[0-9A-Fa-f-]+/', $contact_id))
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{
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throw new egw_exception_assertion_failed("'$contact_id' is NOT a valid GUID!");
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}
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// samba4 can only search by string representation of objectGUID, while win2008r2 requires hex representation
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return '(objectguid='.($this->is_samba4 ? $contact_id : $this->accounts_ads->objectguid2hex($contact_id)).')';
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}
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/**
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* reads contact data
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*
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* @param string/array $contact_id contact_id or array with values for id or account_id
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* @return array/boolean data if row could be retrived else False
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*/
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function read($contact_id)
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{
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if (is_array($contact_id) && isset($contact_id['account_id']) ||
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!is_array($contact_id) && substr($contact_id,0,8) == 'account:')
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{
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$account_id = (int)(is_array($contact_id) ? $contact_id['account_id'] : substr($contact_id,8));
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$contact_id = $GLOBALS['egw']->accounts->id2name($account_id, 'person_id');
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}
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$contact_id = !is_array($contact_id) ? $contact_id :
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(isset ($contact_id['id']) ? $contact_id['id'] : $contact_id['uid']);
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$rows = $this->_searchLDAP($this->allContactsDN, $filter=$this->id_filter($contact_id), $this->all_attributes, ADDRESSBOOK_ALL);
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//error_log(__METHOD__."('$contact_id') _searchLDAP($this->allContactsDN, '$filter',...)=".array2string($rows));
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return $rows ? $rows[0] : false;
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}
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/**
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* Special handling for mapping data of ADA user objectclass to eGW contact
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*
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* Please note: all regular fields are already copied!
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*
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* @internal
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* @param array &$contact already copied fields according to the mapping
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* @param array $data eGW contact data
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*/
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function _user2egw(&$contact, $data)
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{
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$contact['account_id'] = $this->accounts_ads->objectsid2account_id($data['objectsid']);
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$contact['id'] = $contact['uid'] = $this->accounts_ads->objectguid2str($data['objectguid']);
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// ignore system accounts
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if ($contact['account_id'] < accounts_ads::MIN_ACCOUNT_ID) return false;
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// ignore deactivated or expired accounts
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if (!$this->accounts_ads->user_active($data)) return false;
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$this->_inetorgperson2egw($contact, $data, 'displayname');
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}
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/**
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* Remove attributes we are not allowed to update
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*
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* @param array $attributes
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*/
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function sanitize_update(array &$ldapContact)
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{
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// not allowed and not need to update these in AD
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unset($ldapContact['objectguid']);
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unset($ldapContact['objectsid']);
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parent::sanitize_update($ldapContact);
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}
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}
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