seeddms-code/inc/inc.ClassAuthenticationService.php

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<?php
/**
* Implementation of authentication service
*
* @category DMS
* @package SeedDMS
* @license GPL 2
* @version @version@
* @author Uwe Steinmann <uwe@steinmann.cx>
* @copyright Copyright (C) 2016 Uwe Steinmann
* @version Release: @package_version@
*/
/**
* Implementation of authentication service
*
* @category DMS
* @package SeedDMS
* @author Uwe Steinmann <uwe@steinmann.cx>
* @copyright Copyright (C) 2016 Uwe Steinmann
* @version Release: @package_version@
*/
class SeedDMS_AuthenticationService {
/**
* List of services for authenticating user
*/
protected $services;
/*
* List of servives with errors
*/
protected $errors;
/*
* Service for logging
*/
protected $logger;
/*
* Configuration
*/
protected $settings;
public function __construct($logger = null, $settings = null) { /* {{{ */
$this->services = array();
$this->errors = array();
$this->logger = $logger;
$this->settings = $settings;
} /* }}} */
public function addService($service, $name='') { /* {{{ */
if(!$name)
$name = md5(uniqid());
$this->services[$name] = $service;
$this->errors[$name] = true;
} /* }}} */
public function getServices() { /* {{{ */
return $this->services;
} /* }}} */
public function getErrors() { /* {{{ */
return $this->errors;
} /* }}} */
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/**
* Run each authentication service
*
* This method calls authenticate() of each authentication service and
* evaluates the returned value.
* If the authentication method returns false (some internal error which
* prevented to check authentication at all), this method will return
* false imediately, in case of null (no valid authentication) the next
* service will be tried and in all other cases the value will be returned.
*
* @param string $username name of user
* @param string $password password of user
*/
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public function authenticate($username, $password) { /* {{{ */
$user = null;
foreach($this->services as $name => $service) {
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if($this->logger)
$this->logger->log('Authentication service \''.$name.'\'', PEAR_LOG_INFO);
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$user = $service->authenticate($username, $password);
if($user === false) {
$this->errors[$name] = false;
if($this->logger)
$this->logger->log('Authentication service \''.$name.'\': Authentication of user \''.$username.'\' failed.', PEAR_LOG_ERR);
return false;
} elseif($user === null) {
if($this->logger)
$this->logger->log('Authentication service \''.$name.'\': Authentication of user \''.$username.'\' disregarded.', PEAR_LOG_ERR);
} else {
if($this->logger)
$this->logger->log('Authentication service \''.$name.'\': Authentication of user \''.$username.'\' successful.', PEAR_LOG_INFO);
$this->errors[$name] = true;
return $user;
}
}
return $user;
} /* }}} */
}