TimeTrex/classes/adodb/drivers/adodb-ldap.inc.php

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2022-12-13 07:10:06 +01:00
<?php
/**
* LDAP driver.
*
* Provides a subset of ADOdb commands, allowing read-only access to an LDAP database.
*
* This file is part of ADOdb, a Database Abstraction Layer library for PHP.
*
* @package ADOdb
* @link https://adodb.org Project's web site and documentation
* @link https://github.com/ADOdb/ADOdb Source code and issue tracker
*
* The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
* and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
* any later version. This means you can use it in proprietary products.
* See the LICENSE.md file distributed with this source code for details.
* @license BSD-3-Clause
* @license LGPL-2.1-or-later
*
* @copyright 2000-2013 John Lim
* @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
* @author Joshua Eldridge <joshuae74@hotmail.com>
*/
// security - hide paths
if (!defined('ADODB_DIR')) die();
if (!defined('LDAP_ASSOC')) {
define('LDAP_ASSOC',ADODB_FETCH_ASSOC);
define('LDAP_NUM',ADODB_FETCH_NUM);
define('LDAP_BOTH',ADODB_FETCH_BOTH);
}
class ADODB_ldap extends ADOConnection {
var $databaseType = 'ldap';
var $dataProvider = 'ldap';
# Connection information
var $username = false;
var $password = false;
# Used during searches
var $filter;
var $dn;
var $version;
var $port = 389;
# Options configuration information
var $LDAP_CONNECT_OPTIONS;
# error on binding, eg. "Binding: invalid credentials"
var $_bind_errmsg = "Binding: %s";
// returns true or false
function _connect( $host, $username, $password, $ldapbase)
{
global $LDAP_CONNECT_OPTIONS;
if ( !function_exists( 'ldap_connect' ) ) return null;
if (strpos($host,'ldap://') === 0 || strpos($host,'ldaps://') === 0) {
$this->_connectionID = @ldap_connect($host);
} else {
$conn_info = array( $host,$this->port);
if ( strstr( $host, ':' ) ) {
$conn_info = explode( ':', $host );
}
$this->_connectionID = @ldap_connect( $conn_info[0], $conn_info[1] );
}
if (!$this->_connectionID) {
$e = 'Could not connect to ' . $conn_info[0];
$this->_errorMsg = $e;
if ($this->debug) ADOConnection::outp($e);
return false;
}
if( count( $LDAP_CONNECT_OPTIONS ) > 0 ) {
$this->_inject_bind_options( $LDAP_CONNECT_OPTIONS );
}
if ($username) {
$bind = @ldap_bind( $this->_connectionID, $username, $password );
} else {
$username = 'anonymous';
$bind = @ldap_bind( $this->_connectionID );
}
if (!$bind) {
$e = sprintf($this->_bind_errmsg,ldap_error($this->_connectionID));
$this->_errorMsg = $e;
if ($this->debug) ADOConnection::outp($e);
return false;
}
$this->_errorMsg = '';
$this->database = $ldapbase;
return $this->_connectionID;
}
/*
Valid Domain Values for LDAP Options:
LDAP_OPT_DEREF (integer)
LDAP_OPT_SIZELIMIT (integer)
LDAP_OPT_TIMELIMIT (integer)
LDAP_OPT_PROTOCOL_VERSION (integer)
LDAP_OPT_ERROR_NUMBER (integer)
LDAP_OPT_REFERRALS (boolean)
LDAP_OPT_RESTART (boolean)
LDAP_OPT_HOST_NAME (string)
LDAP_OPT_ERROR_STRING (string)
LDAP_OPT_MATCHED_DN (string)
LDAP_OPT_SERVER_CONTROLS (array)
LDAP_OPT_CLIENT_CONTROLS (array)
Make sure to set this BEFORE calling Connect()
Example:
$LDAP_CONNECT_OPTIONS = Array(
Array (
"OPTION_NAME"=>LDAP_OPT_DEREF,
"OPTION_VALUE"=>2
),
Array (
"OPTION_NAME"=>LDAP_OPT_SIZELIMIT,
"OPTION_VALUE"=>100
),
Array (
"OPTION_NAME"=>LDAP_OPT_TIMELIMIT,
"OPTION_VALUE"=>30
),
Array (
"OPTION_NAME"=>LDAP_OPT_PROTOCOL_VERSION,
"OPTION_VALUE"=>3
),
Array (
"OPTION_NAME"=>LDAP_OPT_ERROR_NUMBER,
"OPTION_VALUE"=>13
),
Array (
"OPTION_NAME"=>LDAP_OPT_REFERRALS,
"OPTION_VALUE"=>FALSE
),
Array (
"OPTION_NAME"=>LDAP_OPT_RESTART,
"OPTION_VALUE"=>FALSE
)
);
*/
function _inject_bind_options( $options ) {
foreach( $options as $option ) {
ldap_set_option( $this->_connectionID, $option["OPTION_NAME"], $option["OPTION_VALUE"] )
or die( "Unable to set server option: " . $option["OPTION_NAME"] );
}
}
/* returns _queryID or false */
function _query($sql,$inputarr=false)
{
$rs = @ldap_search( $this->_connectionID, $this->database, $sql );
$this->_errorMsg = ($rs) ? '' : 'Search error on '.$sql.': '.ldap_error($this->_connectionID);
return $rs;
}
function ErrorMsg()
{
return $this->_errorMsg;
}
function ErrorNo()
{
return @ldap_errno($this->_connectionID);
}
/* closes the LDAP connection */
function _close()
{
@ldap_close( $this->_connectionID );
$this->_connectionID = false;
}
function SelectDB($db) {
$this->database = $db;
return true;
} // SelectDB
function ServerInfo()
{
if( !empty( $this->version ) ) {
return $this->version;
}
$version = array();
/*
Determines how aliases are handled during search.
LDAP_DEREF_NEVER (0x00)
LDAP_DEREF_SEARCHING (0x01)
LDAP_DEREF_FINDING (0x02)
LDAP_DEREF_ALWAYS (0x03)
The LDAP_DEREF_SEARCHING value means aliases are dereferenced during the search but
not when locating the base object of the search. The LDAP_DEREF_FINDING value means
aliases are dereferenced when locating the base object but not during the search.
Default: LDAP_DEREF_NEVER
*/
ldap_get_option( $this->_connectionID, LDAP_OPT_DEREF, $version['LDAP_OPT_DEREF'] ) ;
switch ( $version['LDAP_OPT_DEREF'] ) {
case 0:
$version['LDAP_OPT_DEREF'] = 'LDAP_DEREF_NEVER';
case 1:
$version['LDAP_OPT_DEREF'] = 'LDAP_DEREF_SEARCHING';
case 2:
$version['LDAP_OPT_DEREF'] = 'LDAP_DEREF_FINDING';
case 3:
$version['LDAP_OPT_DEREF'] = 'LDAP_DEREF_ALWAYS';
}
/*
A limit on the number of entries to return from a search.
LDAP_NO_LIMIT (0) means no limit.
Default: LDAP_NO_LIMIT
*/
ldap_get_option( $this->_connectionID, LDAP_OPT_SIZELIMIT, $version['LDAP_OPT_SIZELIMIT'] );
if ( $version['LDAP_OPT_SIZELIMIT'] == 0 ) {
$version['LDAP_OPT_SIZELIMIT'] = 'LDAP_NO_LIMIT';
}
/*
A limit on the number of seconds to spend on a search.
LDAP_NO_LIMIT (0) means no limit.
Default: LDAP_NO_LIMIT
*/
ldap_get_option( $this->_connectionID, LDAP_OPT_TIMELIMIT, $version['LDAP_OPT_TIMELIMIT'] );
if ( $version['LDAP_OPT_TIMELIMIT'] == 0 ) {
$version['LDAP_OPT_TIMELIMIT'] = 'LDAP_NO_LIMIT';
}
/*
Determines whether the LDAP library automatically follows referrals returned by LDAP servers or not.
LDAP_OPT_ON
LDAP_OPT_OFF
Default: ON
*/
ldap_get_option( $this->_connectionID, LDAP_OPT_REFERRALS, $version['LDAP_OPT_REFERRALS'] );
if ( $version['LDAP_OPT_REFERRALS'] == 0 ) {
$version['LDAP_OPT_REFERRALS'] = 'LDAP_OPT_OFF';
} else {
$version['LDAP_OPT_REFERRALS'] = 'LDAP_OPT_ON';
}
/*
Determines whether LDAP I/O operations are automatically restarted if they abort prematurely.
LDAP_OPT_ON
LDAP_OPT_OFF
Default: OFF
*/
ldap_get_option( $this->_connectionID, LDAP_OPT_RESTART, $version['LDAP_OPT_RESTART'] );
if ( $version['LDAP_OPT_RESTART'] == 0 ) {
$version['LDAP_OPT_RESTART'] = 'LDAP_OPT_OFF';
} else {
$version['LDAP_OPT_RESTART'] = 'LDAP_OPT_ON';
}
/*
This option indicates the version of the LDAP protocol used when communicating with the primary LDAP server.
LDAP_VERSION2 (2)
LDAP_VERSION3 (3)
Default: LDAP_VERSION2 (2)
*/
ldap_get_option( $this->_connectionID, LDAP_OPT_PROTOCOL_VERSION, $version['LDAP_OPT_PROTOCOL_VERSION'] );
if ( $version['LDAP_OPT_PROTOCOL_VERSION'] == 2 ) {
$version['LDAP_OPT_PROTOCOL_VERSION'] = 'LDAP_VERSION2';
} else {
$version['LDAP_OPT_PROTOCOL_VERSION'] = 'LDAP_VERSION3';
}
/* The host name (or list of hosts) for the primary LDAP server. */
ldap_get_option( $this->_connectionID, LDAP_OPT_HOST_NAME, $version['LDAP_OPT_HOST_NAME'] );
ldap_get_option( $this->_connectionID, LDAP_OPT_ERROR_NUMBER, $version['LDAP_OPT_ERROR_NUMBER'] );
ldap_get_option( $this->_connectionID, LDAP_OPT_ERROR_STRING, $version['LDAP_OPT_ERROR_STRING'] );
ldap_get_option( $this->_connectionID, LDAP_OPT_MATCHED_DN, $version['LDAP_OPT_MATCHED_DN'] );
return $this->version = $version;
}
}
/*--------------------------------------------------------------------------------------
Class Name: Recordset
--------------------------------------------------------------------------------------*/
class ADORecordSet_ldap extends ADORecordSet{
var $databaseType = "ldap";
var $canSeek = false;
var $_entryID; /* keeps track of the entry resource identifier */
function __construct($queryID,$mode=false)
{
if ($mode === false) {
global $ADODB_FETCH_MODE;
$mode = $ADODB_FETCH_MODE;
}
switch ($mode)
{
case ADODB_FETCH_NUM:
$this->fetchMode = LDAP_NUM;
break;
case ADODB_FETCH_ASSOC:
$this->fetchMode = LDAP_ASSOC;
break;
case ADODB_FETCH_DEFAULT:
case ADODB_FETCH_BOTH:
default:
$this->fetchMode = LDAP_BOTH;
break;
}
parent::__construct($queryID);
}
function _initrs()
{
/*
This could be teaked to respect the $COUNTRECS directive from ADODB
It's currently being used in the _fetch() function and the
GetAssoc() function
*/
$this->_numOfRows = ldap_count_entries( $this->connection->_connectionID, $this->_queryID );
}
/*
Return whole recordset as a multi-dimensional associative array
*/
function GetAssoc($force_array = false, $first2cols = false, $fetchMode = -1)
{
$records = $this->_numOfRows;
$results = array();
for ( $i=0; $i < $records; $i++ ) {
foreach ( $this->fields as $k=>$v ) {
if ( is_array( $v ) ) {
if ( $v['count'] == 1 ) {
$results[$i][$k] = $v[0];
} else {
array_shift( $v );
$results[$i][$k] = $v;
}
}
}
}
return $results;
}
function GetRowAssoc($upper = ADODB_ASSOC_CASE)
{
$results = array();
foreach ( $this->fields as $k=>$v ) {
if ( is_array( $v ) ) {
if ( $v['count'] == 1 ) {
$results[$k] = $v[0];
} else {
array_shift( $v );
$results[$k] = $v;
}
}
}
return $results;
}
function GetRowNums()
{
$results = array();
foreach ( $this->fields as $k=>$v ) {
static $i = 0;
if (is_array( $v )) {
if ( $v['count'] == 1 ) {
$results[$i] = $v[0];
} else {
array_shift( $v );
$results[$i] = $v;
}
$i++;
}
}
return $results;
}
function _fetch()
{
if ( $this->_currentRow >= $this->_numOfRows && $this->_numOfRows >= 0 ) {
return false;
}
if ( $this->_currentRow == 0 ) {
$this->_entryID = ldap_first_entry( $this->connection->_connectionID, $this->_queryID );
} else {
$this->_entryID = ldap_next_entry( $this->connection->_connectionID, $this->_entryID );
}
$this->fields = ldap_get_attributes( $this->connection->_connectionID, $this->_entryID );
$this->_numOfFields = $this->fields['count'];
switch ( $this->fetchMode ) {
case LDAP_ASSOC:
$this->fields = $this->GetRowAssoc();
break;
case LDAP_NUM:
$this->fields = array_merge($this->GetRowNums(),$this->GetRowAssoc());
break;
case LDAP_BOTH:
default:
$this->fields = $this->GetRowNums();
break;
}
return is_array( $this->fields );
}
function _close() {
@ldap_free_result( $this->_queryID );
$this->_queryID = false;
}
}