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457 lines
10 KiB
PHP
457 lines
10 KiB
PHP
<?php
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/*
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+-----------------------------------------------------------------------+
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| program/include/rcube_ldap.inc |
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| This file is part of the RoundCube Webmail client |
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| Copyright (C) 2006-2007, RoundCube Dev. - Switzerland |
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| Licensed under the GNU GPL |
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| PURPOSE: |
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| Interface to an LDAP address directory |
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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
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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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/** 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 $ready = false;
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/**
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* Object constructor
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*
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* @param array LDAP connection properties
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* @param integer User-ID
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*/
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function __construct($p)
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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]] = $value;
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$this->connect();
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}
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/**
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* PHP 4 object constructor
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*
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* @see rcube_ldap::__construct()
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*/
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function rcube_ldap($p)
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{
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$this->__construct($p);
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}
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/**
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* Establish a connection to the LDAP server
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*/
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function connect()
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{
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if (!function_exists('ldap_connect'))
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raise_error(array('type' => 'ldap', 'message' => "No ldap support in this installation of PHP"), true);
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if (is_resource($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 $host)
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{
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if ($lc = @ldap_connect($host, $this->prop['port']))
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{
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ldap_set_option($lc, LDAP_OPT_PROTOCOL_VERSION, $this->prop['ldap_version']);
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$this->prop['host'] = $host;
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$this->conn = $lc;
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break;
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}
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}
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if (is_resource($this->conn))
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{
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$this->ready = true;
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if (!empty($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('type' => 'ldap', 'message' => "Could not connect to any LDAP server, tried $host:{$this->prop[port]} last"), true);
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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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if (@ldap_bind($this->conn, $dn, $pass))
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return true;
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else
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{
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raise_error(array(
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'code' => ldap_errno($this->conn),
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'type' => 'ldap',
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'message' => "Bind failed for dn=$dn: ".ldap_error($this->conn)),
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true);
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}
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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 ($this->conn)
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{
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@ldap_unbind($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 (not implemented)
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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']))
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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, $this->sort_col);
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$entries = ldap_get_entries($this->conn, $this->ldap_result);
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for ($i = $this->result->first; $i < min($entries['count'], $this->result->first + $this->page_size); $i++)
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$this->result->add($this->_ldap2result($entries[$i]));
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}
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return $this->result;
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}
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/**
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* Search contacts
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*
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* @param array List of fields to search in
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* @param string Search value
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* @param boolean True if results are requested, False if count only
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* @return array Indexed list of contact records and 'count' value
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*/
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function search($fields, $value, $strict=false, $select=true)
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{
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// special treatment for ID-based search
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if ($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 general filter to query
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if (!empty($this->prop['filter']))
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$filter = '(&('.$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, $this->ldap_result);
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return new rcube_result_set($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 && $dn)
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{
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$this->ldap_result = @ldap_read($this->conn, base64_decode($dn), "(objectclass=*)", array_values($this->fieldmap));
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$entry = @ldap_first_entry($this->conn, $this->ldap_result);
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if ($entry && ($rec = ldap_get_attributes($this->conn, $entry)))
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{
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$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 : $this->result;
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}
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/**
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* Create a new contact record
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*
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* @param array Hash array with save data
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* @return boolean The create record ID on success, False on error
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*/
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function insert($save_cols)
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{
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// TODO
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return false;
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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, $save_cols)
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{
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// TODO
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return false;
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}
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/**
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* Mark one or more contact records as deleted
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*
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* @param array Record identifiers
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* @return boolean True on success, False on error
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*/
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function delete($ids)
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{
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// TODO
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return false;
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}
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/**
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* Execute the LDAP search based on the stored credentials
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*
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* @access private
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*/
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function _exec_search()
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{
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if ($this->conn && $this->filter)
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{
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$function = $this->prop['scope'] == 'sub' ? 'ldap_search' : ($this->prop['scope'] == 'base' ? 'ldap_read' : 'ldap_list');
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$this->ldap_result = $function($this->conn, $this->prop['base_dn'], $this->filter, array_values($this->fieldmap), 0, 0);
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return true;
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}
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else
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return false;
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}
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/**
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* @access private
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*/
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function _ldap2result($rec)
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{
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$out = array();
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if ($rec['dn'])
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$out[$this->primary_key] = base64_encode($rec['dn']);
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foreach ($this->fieldmap as $rf => $lf)
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{
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if ($rec[$lf]['count'])
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$out[$rf] = $rec[$lf][0];
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}
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return $out;
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}
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/**
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* @access private
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*/
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function _map_field($field)
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{
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return $this->fieldmap[$field];
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}
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/**
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* @static
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*/
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function quote_string($str)
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{
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return strtr($str, array('*'=>'\2a', '('=>'\28', ')'=>'\29', '\\'=>'\5c'));
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}
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}
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?>
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