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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Auth
* @subpackage Zend_Auth_Adapter
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Digest.php 16200 2009-06-21 18:50:06Z thomas $
*/
/**
* @see Zend_Auth_Adapter_Interface
*/
require_once 'Zend/Auth/Adapter/Interface.php';
/**
* @category Zend
* @package Zend_Auth
* @subpackage Zend_Auth_Adapter
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Auth_Adapter_Digest implements Zend_Auth_Adapter_Interface
{
/**
* Filename against which authentication queries are performed
*
* @var string
*/
protected $_filename;
/**
* Digest authentication realm
*
* @var string
*/
protected $_realm;
/**
* Digest authentication user
*
* @var string
*/
protected $_username;
/**
* Password for the user of the realm
*
* @var string
*/
protected $_password;
/**
* Sets adapter options
*
* @param mixed $filename
* @param mixed $realm
* @param mixed $username
* @param mixed $password
* @return void
*/
public function __construct($filename = null, $realm = null, $username = null, $password = null)
{
$options = array('filename', 'realm', 'username', 'password');
foreach ($options as $option) {
if (null !== $$option) {
$methodName = 'set' . ucfirst($option);
$this->$methodName($$option);
}
}
}
/**
* Returns the filename option value or null if it has not yet been set
*
* @return string|null
*/
public function getFilename()
{
return $this->_filename;
}
/**
* Sets the filename option value
*
* @param mixed $filename
* @return Zend_Auth_Adapter_Digest Provides a fluent interface
*/
public function setFilename($filename)
{
$this->_filename = (string) $filename;
return $this;
}
/**
* Returns the realm option value or null if it has not yet been set
*
* @return string|null
*/
public function getRealm()
{
return $this->_realm;
}
/**
* Sets the realm option value
*
* @param mixed $realm
* @return Zend_Auth_Adapter_Digest Provides a fluent interface
*/
public function setRealm($realm)
{
$this->_realm = (string) $realm;
return $this;
}
/**
* Returns the username option value or null if it has not yet been set
*
* @return string|null
*/
public function getUsername()
{
return $this->_username;
}
/**
* Sets the username option value
*
* @param mixed $username
* @return Zend_Auth_Adapter_Digest Provides a fluent interface
*/
public function setUsername($username)
{
$this->_username = (string) $username;
return $this;
}
/**
* Returns the password option value or null if it has not yet been set
*
* @return string|null
*/
public function getPassword()
{
return $this->_password;
}
/**
* Sets the password option value
*
* @param mixed $password
* @return Zend_Auth_Adapter_Digest Provides a fluent interface
*/
public function setPassword($password)
{
$this->_password = (string) $password;
return $this;
}
/**
* Defined by Zend_Auth_Adapter_Interface
*
* @throws Zend_Auth_Adapter_Exception
* @return Zend_Auth_Result
*/
public function authenticate()
{
$optionsRequired = array('filename', 'realm', 'username', 'password');
foreach ($optionsRequired as $optionRequired) {
if (null === $this->{"_$optionRequired"}) {
/**
* @see Zend_Auth_Adapter_Exception
*/
require_once 'Zend/Auth/Adapter/Exception.php';
throw new Zend_Auth_Adapter_Exception("Option '$optionRequired' must be set before authentication");
}
}
if (false === ($fileHandle = @fopen($this->_filename, 'r'))) {
/**
* @see Zend_Auth_Adapter_Exception
*/
require_once 'Zend/Auth/Adapter/Exception.php';
throw new Zend_Auth_Adapter_Exception("Cannot open '$this->_filename' for reading");
}
$id = "$this->_username:$this->_realm";
$idLength = strlen($id);
$result = array(
'code' => Zend_Auth_Result::FAILURE,
'identity' => array(
'realm' => $this->_realm,
'username' => $this->_username,
),
'messages' => array()
);
while ($line = trim(fgets($fileHandle))) {
if (substr($line, 0, $idLength) === $id) {
if (substr($line, -32) === md5("$this->_username:$this->_realm:$this->_password")) {
$result['code'] = Zend_Auth_Result::SUCCESS;
} else {
$result['code'] = Zend_Auth_Result::FAILURE_CREDENTIAL_INVALID;
$result['messages'][] = 'Password incorrect';
}
return new Zend_Auth_Result($result['code'], $result['identity'], $result['messages']);
}
}
$result['code'] = Zend_Auth_Result::FAILURE_IDENTITY_NOT_FOUND;
$result['messages'][] = "Username '$this->_username' and realm '$this->_realm' combination not found";
return new Zend_Auth_Result($result['code'], $result['identity'], $result['messages']);
}
}
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