376 lines
9.6 KiB
PHP
376 lines
9.6 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Alexander Bergolth <leo@strike.wu.ac.at>
|
|
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
|
|
* @author Joas Schilling <coding@schilljs.com>
|
|
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
|
|
* @author Lukas Reschke <lukas@statuscode.ch>
|
|
* @author Morris Jobke <hey@morrisjobke.de>
|
|
* @author Robin McCorkell <robin@mccorkell.me.uk>
|
|
* @author Roger Szabo <roger.szabo@web.de>
|
|
*
|
|
* @license AGPL-3.0
|
|
*
|
|
* This code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3,
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License, version 3,
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
|
|
namespace OCA\User_LDAP;
|
|
|
|
use OC\ServerNotAvailableException;
|
|
use OCA\User_LDAP\Exceptions\ConstraintViolationException;
|
|
|
|
class LDAP implements ILDAPWrapper {
|
|
protected $curFunc = '';
|
|
protected $curArgs = array();
|
|
|
|
/**
|
|
* @param resource $link
|
|
* @param string $dn
|
|
* @param string $password
|
|
* @return bool|mixed
|
|
*/
|
|
public function bind($link, $dn, $password) {
|
|
return $this->invokeLDAPMethod('bind', $link, $dn, $password);
|
|
}
|
|
|
|
/**
|
|
* @param string $host
|
|
* @param string $port
|
|
* @return mixed
|
|
*/
|
|
public function connect($host, $port) {
|
|
if(strpos($host, '://') === false) {
|
|
$host = 'ldap://' . $host;
|
|
}
|
|
if(strpos($host, ':', strpos($host, '://') + 1) === false) {
|
|
//ldap_connect ignores port parameter when URLs are passed
|
|
$host .= ':' . $port;
|
|
}
|
|
return $this->invokeLDAPMethod('connect', $host);
|
|
}
|
|
|
|
/**
|
|
* @param resource $link
|
|
* @param resource $result
|
|
* @param string $cookie
|
|
* @return bool|LDAP
|
|
*/
|
|
public function controlPagedResultResponse($link, $result, &$cookie) {
|
|
$this->preFunctionCall('ldap_control_paged_result_response',
|
|
array($link, $result, $cookie));
|
|
$result = ldap_control_paged_result_response($link, $result, $cookie);
|
|
$this->postFunctionCall();
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param int $pageSize
|
|
* @param bool $isCritical
|
|
* @param string $cookie
|
|
* @return mixed|true
|
|
*/
|
|
public function controlPagedResult($link, $pageSize, $isCritical, $cookie) {
|
|
return $this->invokeLDAPMethod('control_paged_result', $link, $pageSize,
|
|
$isCritical, $cookie);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param LDAP $result
|
|
* @return mixed
|
|
*/
|
|
public function countEntries($link, $result) {
|
|
return $this->invokeLDAPMethod('count_entries', $link, $result);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @return integer
|
|
*/
|
|
public function errno($link) {
|
|
return $this->invokeLDAPMethod('errno', $link);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @return string
|
|
*/
|
|
public function error($link) {
|
|
return $this->invokeLDAPMethod('error', $link);
|
|
}
|
|
|
|
/**
|
|
* Splits DN into its component parts
|
|
* @param string $dn
|
|
* @param int @withAttrib
|
|
* @return array|false
|
|
* @link http://www.php.net/manual/en/function.ldap-explode-dn.php
|
|
*/
|
|
public function explodeDN($dn, $withAttrib) {
|
|
return $this->invokeLDAPMethod('explode_dn', $dn, $withAttrib);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param LDAP $result
|
|
* @return mixed
|
|
*/
|
|
public function firstEntry($link, $result) {
|
|
return $this->invokeLDAPMethod('first_entry', $link, $result);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param LDAP $result
|
|
* @return array|mixed
|
|
*/
|
|
public function getAttributes($link, $result) {
|
|
return $this->invokeLDAPMethod('get_attributes', $link, $result);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param LDAP $result
|
|
* @return mixed|string
|
|
*/
|
|
public function getDN($link, $result) {
|
|
return $this->invokeLDAPMethod('get_dn', $link, $result);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param LDAP $result
|
|
* @return array|mixed
|
|
*/
|
|
public function getEntries($link, $result) {
|
|
return $this->invokeLDAPMethod('get_entries', $link, $result);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param resource $result
|
|
* @return mixed
|
|
*/
|
|
public function nextEntry($link, $result) {
|
|
return $this->invokeLDAPMethod('next_entry', $link, $result);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param string $baseDN
|
|
* @param string $filter
|
|
* @param array $attr
|
|
* @return mixed
|
|
*/
|
|
public function read($link, $baseDN, $filter, $attr) {
|
|
return $this->invokeLDAPMethod('read', $link, $baseDN, $filter, $attr);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param string $baseDN
|
|
* @param string $filter
|
|
* @param array $attr
|
|
* @param int $attrsOnly
|
|
* @param int $limit
|
|
* @return mixed
|
|
*/
|
|
public function search($link, $baseDN, $filter, $attr, $attrsOnly = 0, $limit = 0) {
|
|
return $this->invokeLDAPMethod('search', $link, $baseDN, $filter, $attr, $attrsOnly, $limit);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param string $userDN
|
|
* @param string $password
|
|
* @return bool
|
|
*/
|
|
public function modReplace($link, $userDN, $password) {
|
|
return $this->invokeLDAPMethod('mod_replace', $link, $userDN, array('userPassword' => $password));
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @param string $option
|
|
* @param int $value
|
|
* @return bool|mixed
|
|
*/
|
|
public function setOption($link, $option, $value) {
|
|
return $this->invokeLDAPMethod('set_option', $link, $option, $value);
|
|
}
|
|
|
|
/**
|
|
* @param LDAP $link
|
|
* @return mixed|true
|
|
*/
|
|
public function startTls($link) {
|
|
return $this->invokeLDAPMethod('start_tls', $link);
|
|
}
|
|
|
|
/**
|
|
* @param resource $link
|
|
* @return bool|mixed
|
|
*/
|
|
public function unbind($link) {
|
|
return $this->invokeLDAPMethod('unbind', $link);
|
|
}
|
|
|
|
/**
|
|
* Checks whether the server supports LDAP
|
|
* @return boolean if it the case, false otherwise
|
|
* */
|
|
public function areLDAPFunctionsAvailable() {
|
|
return function_exists('ldap_connect');
|
|
}
|
|
|
|
/**
|
|
* Checks whether PHP supports LDAP Paged Results
|
|
* @return boolean if it the case, false otherwise
|
|
* */
|
|
public function hasPagedResultSupport() {
|
|
$hasSupport = function_exists('ldap_control_paged_result')
|
|
&& function_exists('ldap_control_paged_result_response');
|
|
return $hasSupport;
|
|
}
|
|
|
|
/**
|
|
* Checks whether the submitted parameter is a resource
|
|
* @param Resource $resource the resource variable to check
|
|
* @return bool true if it is a resource, false otherwise
|
|
*/
|
|
public function isResource($resource) {
|
|
return is_resource($resource);
|
|
}
|
|
|
|
/**
|
|
* Checks whether the return value from LDAP is wrong or not.
|
|
*
|
|
* When using ldap_search we provide an array, in case multiple bases are
|
|
* configured. Thus, we need to check the array elements.
|
|
*
|
|
* @param $result
|
|
* @return bool
|
|
*/
|
|
protected function isResultFalse($result) {
|
|
if($result === false) {
|
|
return true;
|
|
}
|
|
|
|
if($this->curFunc === 'ldap_search' && is_array($result)) {
|
|
foreach ($result as $singleResult) {
|
|
if($singleResult === false) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @return mixed
|
|
*/
|
|
protected function invokeLDAPMethod() {
|
|
$arguments = func_get_args();
|
|
$func = 'ldap_' . array_shift($arguments);
|
|
if(function_exists($func)) {
|
|
$this->preFunctionCall($func, $arguments);
|
|
$result = call_user_func_array($func, $arguments);
|
|
if ($this->isResultFalse($result)) {
|
|
$this->postFunctionCall();
|
|
}
|
|
return $result;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @param string $functionName
|
|
* @param array $args
|
|
*/
|
|
private function preFunctionCall($functionName, $args) {
|
|
$this->curFunc = $functionName;
|
|
$this->curArgs = $args;
|
|
}
|
|
|
|
/**
|
|
* Analyzes the returned LDAP error and acts accordingly if not 0
|
|
*
|
|
* @param resource $resource the LDAP Connection resource
|
|
* @throws ConstraintViolationException
|
|
* @throws ServerNotAvailableException
|
|
* @throws \Exception
|
|
*/
|
|
private function processLDAPError($resource) {
|
|
$errorCode = ldap_errno($resource);
|
|
if($errorCode === 0) {
|
|
return;
|
|
}
|
|
$errorMsg = ldap_error($resource);
|
|
|
|
if($this->curFunc === 'ldap_get_entries'
|
|
&& $errorCode === -4) {
|
|
} else if ($errorCode === 32) {
|
|
//for now
|
|
} else if ($errorCode === 10) {
|
|
//referrals, we switch them off, but then there is AD :)
|
|
} else if ($errorCode === -1) {
|
|
throw new ServerNotAvailableException('Lost connection to LDAP server.');
|
|
} else if ($errorCode === 52) {
|
|
throw new ServerNotAvailableException('LDAP server is shutting down.');
|
|
} else if ($errorCode === 48) {
|
|
throw new \Exception('LDAP authentication method rejected', $errorCode);
|
|
} else if ($errorCode === 1) {
|
|
throw new \Exception('LDAP Operations error', $errorCode);
|
|
} else if ($errorCode === 19) {
|
|
ldap_get_option($this->curArgs[0], LDAP_OPT_ERROR_STRING, $extended_error);
|
|
throw new ConstraintViolationException(!empty($extended_error)?$extended_error:$errorMsg, $errorCode);
|
|
} else {
|
|
\OC::$server->getLogger()->debug('LDAP error {message} ({code}) after calling {func}', [
|
|
'app' => 'user_ldap',
|
|
'message' => $errorMsg,
|
|
'code' => $errorCode,
|
|
'func' => $this->curFunc,
|
|
]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Called after an ldap method is run to act on LDAP error if necessary
|
|
*/
|
|
private function postFunctionCall() {
|
|
if($this->isResource($this->curArgs[0])) {
|
|
$resource = $this->curArgs[0];
|
|
} else if(
|
|
$this->curFunc === 'ldap_search'
|
|
&& is_array($this->curArgs[0])
|
|
&& $this->isResource($this->curArgs[0][0])
|
|
) {
|
|
// we use always the same LDAP connection resource, is enough to
|
|
// take the first one.
|
|
$resource = $this->curArgs[0][0];
|
|
} else {
|
|
return;
|
|
}
|
|
|
|
$this->processLDAPError($resource);
|
|
|
|
$this->curFunc = '';
|
|
$this->curArgs = [];
|
|
}
|
|
}
|