C:/xampp/htdocs/moodle/lib/zend/Zend/Amf/Adobe/Auth.php

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<?php
require_once 'Zend/Amf/Auth/Abstract.php';

require_once 'Zend/Acl.php';

require_once 'Zend/Auth/Result.php';

class Zend_Amf_Adobe_Auth extends Zend_Amf_Auth_Abstract
{

    protected $_acl;

    protected $_users = array();

    public function __construct($rolefile)
    {
        $this->_acl = new Zend_Acl();
        $xml = simplexml_load_file($rolefile);
/*
Roles file format:
 <roles>
   <role id=”admin”>
        <user name=”user1” password=”pwd”/>
    </role>
   <role id=”hr”>
        <user name=”user2” password=”pwd2”/>
    </role>
</roles>
*/
        foreach($xml->role as $role) {
            $this->_acl->addRole(new Zend_Acl_Role((string)$role["id"]));
            foreach($role->user as $user) {
                $this->_users[(string)$user["name"]] = array("password" => (string)$user["password"],
                                                             "role" => (string)$role["id"]);
            }
        }
    }

    public function getAcl()
    {
        return $this->_acl;
    }

    public function authenticate()
    {
        if (empty($this->_username) ||
            empty($this->_password)) {
            require_once 'Zend/Auth/Adapter/Exception.php';
            throw new Zend_Auth_Adapter_Exception('Username/password should be set');
        }

        if(!isset($this->_users[$this->_username])) {
            return new Zend_Auth_Result(Zend_Auth_Result::FAILURE_IDENTITY_NOT_FOUND,
                null,
                array('Username not found')
                );
        }

        $user = $this->_users[$this->_username];
        if($user["password"] != $this->_password) {
            return new Zend_Auth_Result(Zend_Auth_Result::FAILURE_CREDENTIAL_INVALID,
                null,
                array('Authentication failed')
                );
        }

        $id = new stdClass();
        $id->role = $user["role"];
        $id->name = $this->_username;
        return new Zend_Auth_Result(Zend_Auth_Result::SUCCESS, $id);
    }
}