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735 lines
20 KiB
PHP
735 lines
20 KiB
PHP
<?php
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/*
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+-----------------------------------------------------------------------+
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| program/include/rcube_ldap.php |
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| |
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| This file is part of the Roundcube Webmail client |
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| Copyright (C) 2006-2009, Roundcube Dev. - Switzerland |
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| Licensed under the GNU GPL |
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| |
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| PURPOSE: |
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| Interface to an LDAP address directory |
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| |
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+-----------------------------------------------------------------------+
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| Author: Thomas Bruederli <roundcube@gmail.com> |
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+-----------------------------------------------------------------------+
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$Id$
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*/
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/**
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* Model class to access an LDAP address directory
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*
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* @package Addressbook
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*/
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class rcube_ldap extends rcube_addressbook
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{
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var $conn;
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var $prop = array();
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var $fieldmap = array();
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var $filter = '';
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var $result = null;
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var $ldap_result = null;
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var $sort_col = '';
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var $mail_domain = '';
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var $debug = false;
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/** public properties */
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var $primary_key = 'ID';
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var $readonly = true;
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var $list_page = 1;
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var $page_size = 10;
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var $ready = false;
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/**
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* Object constructor
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*
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* @param array LDAP connection properties
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* @param boolean Enables debug mode
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* @param string Current user mail domain name
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* @param integer User-ID
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*/
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function __construct($p, $debug=false, $mail_domain=NULL)
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{
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$this->prop = $p;
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foreach ($p as $prop => $value)
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if (preg_match('/^(.+)_field$/', $prop, $matches))
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$this->fieldmap[$matches[1]] = $this->_attr_name(strtolower($value));
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// make sure 'required_fields' is an array
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if (!is_array($this->prop['required_fields']))
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$this->prop['required_fields'] = (array) $this->prop['required_fields'];
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foreach ($this->prop['required_fields'] as $key => $val)
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$this->prop['required_fields'][$key] = $this->_attr_name(strtolower($val));
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$this->sort_col = $p['sort'];
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$this->debug = $debug;
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$this->mail_domain = $mail_domain;
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$this->connect();
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}
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/**
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* Establish a connection to the LDAP server
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*/
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function connect()
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{
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global $RCMAIL;
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if (!function_exists('ldap_connect'))
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raise_error(array('code' => 100, 'type' => 'ldap',
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'file' => __FILE__, 'line' => __LINE__,
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'message' => "No ldap support in this installation of PHP"), true);
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if (is_resource($this->conn))
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return true;
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if (!is_array($this->prop['hosts']))
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$this->prop['hosts'] = array($this->prop['hosts']);
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if (empty($this->prop['ldap_version']))
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$this->prop['ldap_version'] = 3;
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foreach ($this->prop['hosts'] as $host)
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{
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$host = rcube_parse_host($host);
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$this->_debug("C: Connect [$host".($this->prop['port'] ? ':'.$this->prop['port'] : '')."]");
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if ($lc = @ldap_connect($host, $this->prop['port']))
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{
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if ($this->prop['use_tls']===true)
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if (!ldap_start_tls($lc))
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continue;
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$this->_debug("S: OK");
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ldap_set_option($lc, LDAP_OPT_PROTOCOL_VERSION, $this->prop['ldap_version']);
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$this->prop['host'] = $host;
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$this->conn = $lc;
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break;
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}
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$this->_debug("S: NOT OK");
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}
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if (is_resource($this->conn))
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{
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$this->ready = true;
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// User specific access, generate the proper values to use.
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if ($this->prop['user_specific']) {
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// No password set, use the session password
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if (empty($this->prop['bind_pass'])) {
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$this->prop['bind_pass'] = $RCMAIL->decrypt($_SESSION['password']);
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}
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// Get the pieces needed for variable replacement.
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$fu = $RCMAIL->user->get_username();
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list($u, $d) = explode('@', $fu);
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$dc = 'dc='.strtr($d, array('.' => ',dc=')); // hierarchal domain string
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// Replace the bind_dn and base_dn variables.
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$replaces = array('%dc' => $dc, '%d' => $d, '%fu' => $fu, '%u' => $u);
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$this->prop['bind_dn'] = strtr($this->prop['bind_dn'], $replaces);
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$this->prop['base_dn'] = strtr($this->prop['base_dn'], $replaces);
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}
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if (!empty($this->prop['bind_dn']) && !empty($this->prop['bind_pass']))
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$this->ready = $this->bind($this->prop['bind_dn'], $this->prop['bind_pass']);
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}
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else
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raise_error(array('code' => 100, 'type' => 'ldap',
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'file' => __FILE__, 'line' => __LINE__,
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'message' => "Could not connect to any LDAP server, last tried $host:{$this->prop[port]}"), true);
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// See if the directory is writeable.
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if ($this->prop['writable']) {
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$this->readonly = false;
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} // end if
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}
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/**
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* Bind connection with DN and password
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*
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* @param string Bind DN
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* @param string Bind password
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* @return boolean True on success, False on error
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*/
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function bind($dn, $pass)
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{
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if (!$this->conn) {
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return false;
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}
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$this->_debug("C: Bind [dn: $dn] [pass: $pass]");
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if (@ldap_bind($this->conn, $dn, $pass)) {
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$this->_debug("S: OK");
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return true;
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}
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$this->_debug("S: ".ldap_error($this->conn));
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raise_error(array(
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'code' => ldap_errno($this->conn), 'type' => 'ldap',
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'file' => __FILE__, 'line' => __LINE__,
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'message' => "Bind failed for dn=$dn: ".ldap_error($this->conn)),
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true);
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return false;
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}
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/**
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* Close connection to LDAP server
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*/
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function close()
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{
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if ($this->conn)
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{
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$this->_debug("C: Close");
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ldap_unbind($this->conn);
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$this->conn = null;
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}
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}
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/**
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* Set internal list page
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*
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* @param number Page number to list
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* @access public
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*/
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function set_page($page)
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{
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$this->list_page = (int)$page;
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}
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/**
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* Set internal page size
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*
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* @param number Number of messages to display on one page
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* @access public
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*/
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function set_pagesize($size)
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{
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$this->page_size = (int)$size;
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}
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/**
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* Save a search string for future listings
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*
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* @param string Filter string
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*/
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function set_search_set($filter)
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{
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$this->filter = $filter;
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}
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/**
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* Getter for saved search properties
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*
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* @return mixed Search properties used by this class
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*/
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function get_search_set()
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{
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return $this->filter;
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}
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/**
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* Reset all saved results and search parameters
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*/
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function reset()
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{
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$this->result = null;
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$this->ldap_result = null;
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$this->filter = '';
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}
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/**
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* List the current set of contact records
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*
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* @param array List of cols to show
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* @param int Only return this number of records
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* @return array Indexed list of contact records, each a hash array
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*/
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function list_records($cols=null, $subset=0)
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{
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// add general filter to query
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if (!empty($this->prop['filter']) && empty($this->filter))
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{
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$filter = $this->prop['filter'];
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$this->set_search_set($filter);
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}
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// exec LDAP search if no result resource is stored
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if ($this->conn && !$this->ldap_result)
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$this->_exec_search();
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// count contacts for this user
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$this->result = $this->count();
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// we have a search result resource
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if ($this->ldap_result && $this->result->count > 0)
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{
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if ($this->sort_col && $this->prop['scope'] !== 'base')
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ldap_sort($this->conn, $this->ldap_result, $this->sort_col);
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$start_row = $subset < 0 ? $this->result->first + $this->page_size + $subset : $this->result->first;
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$last_row = $this->result->first + $this->page_size;
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$last_row = $subset != 0 ? $start_row + abs($subset) : $last_row;
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$entries = ldap_get_entries($this->conn, $this->ldap_result);
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for ($i = $start_row; $i < min($entries['count'], $last_row); $i++)
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$this->result->add($this->_ldap2result($entries[$i]));
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}
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return $this->result;
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}
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/**
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* Search contacts
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*
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* @param array List of fields to search in
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* @param string Search value
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* @param boolean True for strict, False for partial (fuzzy) matching
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* @param boolean True if results are requested, False if count only
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* @param boolean (Not used)
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* @param array List of fields that cannot be empty
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* @return array Indexed list of contact records and 'count' value
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*/
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function search($fields, $value, $strict=false, $select=true, $nocount=false, $required=array())
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{
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// special treatment for ID-based search
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if ($fields == 'ID' || $fields == $this->primary_key)
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{
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$ids = explode(',', $value);
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$result = new rcube_result_set();
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foreach ($ids as $id)
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if ($rec = $this->get_record($id, true))
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{
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$result->add($rec);
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$result->count++;
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}
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return $result;
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}
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$filter = '(|';
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$wc = !$strict && $this->prop['fuzzy_search'] ? '*' : '';
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if (is_array($this->prop['search_fields']))
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{
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foreach ($this->prop['search_fields'] as $k => $field)
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$filter .= "($field=$wc" . rcube_ldap::quote_string($value) . "$wc)";
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}
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else
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{
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foreach ((array)$fields as $field)
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if ($f = $this->_map_field($field))
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$filter .= "($f=$wc" . rcube_ldap::quote_string($value) . "$wc)";
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}
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$filter .= ')';
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// add required (non empty) fields filter
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$req_filter = '';
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foreach ((array)$required as $field)
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if ($f = $this->_map_field($field))
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$req_filter .= "($f=*)";
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if (!empty($req_filter))
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$filter = '(&' . $req_filter . $filter . ')';
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// avoid double-wildcard if $value is empty
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$filter = preg_replace('/\*+/', '*', $filter);
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// add general filter to query
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if (!empty($this->prop['filter']))
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$filter = '(&(' . preg_replace('/^\(|\)$/', '', $this->prop['filter']) . ')' . $filter . ')';
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// set filter string and execute search
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$this->set_search_set($filter);
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$this->_exec_search();
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if ($select)
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$this->list_records();
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else
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$this->result = $this->count();
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return $this->result;
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}
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/**
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* Count number of available contacts in database
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*
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* @return object rcube_result_set Resultset with values for 'count' and 'first'
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*/
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function count()
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{
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$count = 0;
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if ($this->conn && $this->ldap_result) {
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$count = ldap_count_entries($this->conn, $this->ldap_result);
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} // end if
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elseif ($this->conn) {
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// We have a connection but no result set, attempt to get one.
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if (empty($this->filter)) {
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// The filter is not set, set it.
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$this->filter = $this->prop['filter'];
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} // end if
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$this->_exec_search();
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if ($this->ldap_result) {
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$count = ldap_count_entries($this->conn, $this->ldap_result);
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} // end if
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} // end else
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return new rcube_result_set($count, ($this->list_page-1) * $this->page_size);
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}
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/**
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* Return the last result set
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*
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* @return object rcube_result_set Current resultset or NULL if nothing selected yet
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*/
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function get_result()
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{
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return $this->result;
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}
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/**
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* Get a specific contact record
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*
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* @param mixed Record identifier
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* @param boolean Return as associative array
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* @return mixed Hash array or rcube_result_set with all record fields
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*/
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function get_record($dn, $assoc=false)
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{
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$res = null;
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if ($this->conn && $dn)
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{
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$dn = base64_decode($dn);
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$this->_debug("C: Read [dn: $dn] [(objectclass=*)]");
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if ($this->ldap_result = @ldap_read($this->conn, $dn, '(objectclass=*)', array_values($this->fieldmap)))
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$entry = ldap_first_entry($this->conn, $this->ldap_result);
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else
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$this->_debug("S: ".ldap_error($this->conn));
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if ($entry && ($rec = ldap_get_attributes($this->conn, $entry)))
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{
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$this->_debug("S: OK");
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$rec = array_change_key_case($rec, CASE_LOWER);
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// Add in the dn for the entry.
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$rec['dn'] = $dn;
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$res = $this->_ldap2result($rec);
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$this->result = new rcube_result_set(1);
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$this->result->add($res);
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}
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}
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return $assoc ? $res : $this->result;
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}
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/**
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* Create a new contact record
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*
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* @param array Hash array with save data
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* @return encoded record ID on success, False on error
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*/
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function insert($save_cols)
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{
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// Map out the column names to their LDAP ones to build the new entry.
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$newentry = array();
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$newentry['objectClass'] = $this->prop['LDAP_Object_Classes'];
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foreach ($save_cols as $col => $val) {
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$fld = $this->_map_field($col);
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if ($fld && $val) {
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// The field does exist, add it to the entry.
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$newentry[$fld] = $val;
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} // end if
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} // end foreach
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// Verify that the required fields are set.
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// We know that the email address is required as a default of rcube, so
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// we will default its value into any unfilled required fields.
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foreach ($this->prop['required_fields'] as $fld) {
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if (!isset($newentry[$fld])) {
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$newentry[$fld] = $newentry[$this->_map_field('email')];
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} // end if
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} // end foreach
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// Build the new entries DN.
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$dn = $this->prop['LDAP_rdn'].'='.rcube_ldap::quote_string($newentry[$this->prop['LDAP_rdn']], true)
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.','.$this->prop['base_dn'];
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$this->_debug("C: Add [dn: $dn]: ".print_r($newentry, true));
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$res = ldap_add($this->conn, $dn, $newentry);
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if ($res === FALSE) {
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$this->_debug("S: ".ldap_error($this->conn));
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return false;
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} // end if
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$this->_debug("S: OK");
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return base64_encode($dn);
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}
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/**
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* Update a specific contact record
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*
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* @param mixed Record identifier
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* @param array Hash array with save data
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* @return boolean True on success, False on error
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*/
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function update($id, $save_cols)
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{
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$record = $this->get_record($id, true);
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$result = $this->get_result();
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$record = $result->first();
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$newdata = array();
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$replacedata = array();
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$deletedata = array();
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foreach ($save_cols as $col => $val) {
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$fld = $this->_map_field($col);
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if ($fld) {
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// The field does exist compare it to the ldap record.
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if ($record[$col] != $val) {
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// Changed, but find out how.
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if (!isset($record[$col])) {
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// Field was not set prior, need to add it.
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$newdata[$fld] = $val;
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} // end if
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elseif ($val == '') {
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// Field supplied is empty, verify that it is not required.
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if (!in_array($fld, $this->prop['required_fields'])) {
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// It is not, safe to clear.
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$deletedata[$fld] = $record[$col];
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} // end if
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} // end elseif
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else {
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// The data was modified, save it out.
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$replacedata[$fld] = $val;
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} // end else
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} // end if
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} // end if
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} // end foreach
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$dn = base64_decode($id);
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// Update the entry as required.
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if (!empty($deletedata)) {
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// Delete the fields.
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$this->_debug("C: Delete [dn: $dn]: ".print_r($deletedata, true));
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if (!ldap_mod_del($this->conn, $dn, $deletedata)) {
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$this->_debug("S: ".ldap_error($this->conn));
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return false;
|
|
}
|
|
$this->_debug("S: OK");
|
|
} // end if
|
|
|
|
if (!empty($replacedata)) {
|
|
// Handle RDN change
|
|
if ($replacedata[$this->prop['LDAP_rdn']]) {
|
|
$newdn = $this->prop['LDAP_rdn'].'='
|
|
.rcube_ldap::quote_string($replacedata[$this->prop['LDAP_rdn']], true)
|
|
.','.$this->prop['base_dn'];
|
|
if ($dn != $newdn) {
|
|
$newrdn = $this->prop['LDAP_rdn'].'='
|
|
.rcube_ldap::quote_string($replacedata[$this->prop['LDAP_rdn']], true);
|
|
unset($replacedata[$this->prop['LDAP_rdn']]);
|
|
}
|
|
}
|
|
// Replace the fields.
|
|
if (!empty($replacedata)) {
|
|
$this->_debug("C: Replace [dn: $dn]: ".print_r($replacedata, true));
|
|
if (!ldap_mod_replace($this->conn, $dn, $replacedata)) {
|
|
$this->_debug("S: ".ldap_error($this->conn));
|
|
return false;
|
|
}
|
|
$this->_debug("S: OK");
|
|
} // end if
|
|
} // end if
|
|
|
|
if (!empty($newdata)) {
|
|
// Add the fields.
|
|
$this->_debug("C: Add [dn: $dn]: ".print_r($newdata, true));
|
|
if (!ldap_mod_add($this->conn, $dn, $newdata)) {
|
|
$this->_debug("S: ".ldap_error($this->conn));
|
|
return false;
|
|
}
|
|
$this->_debug("S: OK");
|
|
} // end if
|
|
|
|
// Handle RDN change
|
|
if (!empty($newrdn)) {
|
|
$this->_debug("C: Rename [dn: $dn] [dn: $newrdn]");
|
|
if (@ldap_rename($this->conn, $dn, $newrdn, NULL, TRUE)) {
|
|
$this->_debug("S: ".ldap_error($this->conn));
|
|
return base64_encode($newdn);
|
|
}
|
|
$this->_debug("S: OK");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Mark one or more contact records as deleted
|
|
*
|
|
* @param array Record identifiers
|
|
* @return boolean True on success, False on error
|
|
*/
|
|
function delete($ids)
|
|
{
|
|
if (!is_array($ids)) {
|
|
// Not an array, break apart the encoded DNs.
|
|
$dns = explode(',', $ids);
|
|
} // end if
|
|
|
|
foreach ($dns as $id) {
|
|
$dn = base64_decode($id);
|
|
$this->_debug("C: Delete [dn: $dn]");
|
|
// Delete the record.
|
|
$res = ldap_delete($this->conn, $dn);
|
|
if ($res === FALSE) {
|
|
$this->_debug("S: ".ldap_error($this->conn));
|
|
return false;
|
|
} // end if
|
|
$this->_debug("S: OK");
|
|
} // end foreach
|
|
|
|
return count($dns);
|
|
}
|
|
|
|
|
|
/**
|
|
* Execute the LDAP search based on the stored credentials
|
|
*
|
|
* @access private
|
|
*/
|
|
private function _exec_search()
|
|
{
|
|
if ($this->ready)
|
|
{
|
|
$filter = $this->filter ? $this->filter : '(objectclass=*)';
|
|
$function = $this->prop['scope'] == 'sub' ? 'ldap_search' : ($this->prop['scope'] == 'base' ? 'ldap_read' : 'ldap_list');
|
|
|
|
$this->_debug("C: Search [".$filter."]");
|
|
|
|
if ($this->ldap_result = @$function($this->conn, $this->prop['base_dn'], $filter,
|
|
array_values($this->fieldmap), 0, (int) $this->prop['sizelimit'], (int) $this->prop['timelimit'])
|
|
) {
|
|
$this->_debug("S: ".ldap_count_entries($this->conn, $this->ldap_result)." record(s)");
|
|
return true;
|
|
} else
|
|
$this->_debug("S: ".ldap_error($this->conn));
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/**
|
|
* @access private
|
|
*/
|
|
private function _ldap2result($rec)
|
|
{
|
|
global $RCMAIL;
|
|
|
|
$out = array();
|
|
|
|
if ($rec['dn'])
|
|
$out[$this->primary_key] = base64_encode($rec['dn']);
|
|
|
|
foreach ($this->fieldmap as $rf => $lf)
|
|
{
|
|
if ($rec[$lf]['count']) {
|
|
if ($rf == 'email' && $this->mail_domain && !strpos($rec[$lf][0], '@'))
|
|
$out[$rf] = sprintf('%s@%s', $rec[$lf][0], $this->mail_domain);
|
|
else
|
|
$out[$rf] = $rec[$lf][0];
|
|
}
|
|
}
|
|
|
|
return $out;
|
|
}
|
|
|
|
|
|
/**
|
|
* @access private
|
|
*/
|
|
private function _map_field($field)
|
|
{
|
|
return $this->fieldmap[$field];
|
|
}
|
|
|
|
|
|
/**
|
|
* @access private
|
|
*/
|
|
private function _attr_name($name)
|
|
{
|
|
// list of known attribute aliases
|
|
$aliases = array(
|
|
'gn' => 'givenname',
|
|
'rfc822mailbox' => 'email',
|
|
'userid' => 'uid',
|
|
'emailaddress' => 'email',
|
|
'pkcs9email' => 'email',
|
|
);
|
|
return isset($aliases[$name]) ? $aliases[$name] : $name;
|
|
}
|
|
|
|
|
|
/**
|
|
* @access private
|
|
*/
|
|
private function _debug($str)
|
|
{
|
|
if ($this->debug)
|
|
write_log('ldap', $str);
|
|
}
|
|
|
|
|
|
/**
|
|
* @static
|
|
*/
|
|
function quote_string($str, $dn=false)
|
|
{
|
|
if ($dn)
|
|
$replace = array(','=>'\2c', '='=>'\3d', '+'=>'\2b', '<'=>'\3c',
|
|
'>'=>'\3e', ';'=>'\3b', '\\'=>'\5c', '"'=>'\22', '#'=>'\23');
|
|
else
|
|
$replace = array('*'=>'\2a', '('=>'\28', ')'=>'\29', '\\'=>'\5c',
|
|
'/'=>'\2f');
|
|
|
|
return strtr($str, $replace);
|
|
}
|
|
|
|
}
|
|
|