pictcode / lib / Cake / Controller / Component / Auth / BasicAuthenticate.php @ 635eef61
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| 1 | 635eef61 | spyder1211 | <?php
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| 2 | /**
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| 3 | * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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| 4 | * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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| 5 | *
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| 6 | * Licensed under The MIT License
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| 7 | * For full copyright and license information, please see the LICENSE.txt
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| 8 | * Redistributions of files must retain the above copyright notice.
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| 9 | *
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| 10 | * @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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| 11 | * @link http://cakephp.org CakePHP(tm) Project
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| 12 | * @license http://www.opensource.org/licenses/mit-license.php MIT License
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| 13 | */
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| 14 | |||
| 15 | App::uses('BaseAuthenticate', 'Controller/Component/Auth'); |
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| 16 | |||
| 17 | /**
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| 18 | * Basic Authentication adapter for AuthComponent.
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| 19 | *
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| 20 | * Provides Basic HTTP authentication support for AuthComponent. Basic Auth will
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| 21 | * authenticate users against the configured userModel and verify the username
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| 22 | * and passwords match.
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| 23 | *
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| 24 | * ### Using Basic auth
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| 25 | *
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| 26 | * In your controller's components array, add auth + the required settings.
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| 27 | * ```
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| 28 | * public $components = array(
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| 29 | * 'Auth' => array(
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| 30 | * 'authenticate' => array('Basic')
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| 31 | * )
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| 32 | * );
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| 33 | * ```
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| 34 | *
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| 35 | * You should also set `AuthComponent::$sessionKey = false;` in your AppController's
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| 36 | * beforeFilter() to prevent CakePHP from sending a session cookie to the client.
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| 37 | *
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| 38 | * Since HTTP Basic Authentication is stateless you don't need a login() action
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| 39 | * in your controller. The user credentials will be checked on each request. If
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| 40 | * valid credentials are not provided, required authentication headers will be sent
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| 41 | * by this authentication provider which triggers the login dialog in the browser/client.
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| 42 | *
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| 43 | * You may also want to use `$this->Auth->unauthorizedRedirect = false;`.
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| 44 | * By default, unauthorized users are redirected to the referrer URL,
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| 45 | * `AuthComponent::$loginAction`, or '/'. If unauthorizedRedirect is set to
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| 46 | * false, a ForbiddenException exception is thrown instead of redirecting.
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| 47 | *
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| 48 | * @package Cake.Controller.Component.Auth
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| 49 | * @since 2.0
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| 50 | */
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| 51 | class BasicAuthenticate extends BaseAuthenticate { |
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| 52 | |||
| 53 | /**
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| 54 | * Constructor, completes configuration for basic authentication.
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| 55 | *
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| 56 | * @param ComponentCollection $collection The Component collection used on this request.
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| 57 | * @param array $settings An array of settings.
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| 58 | */
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| 59 | public function __construct(ComponentCollection $collection, $settings) { |
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| 60 | parent::__construct($collection, $settings); |
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| 61 | if (empty($this->settings['realm'])) { |
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| 62 | $this->settings['realm'] = env('SERVER_NAME'); |
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| 63 | } |
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| 64 | } |
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| 65 | |||
| 66 | /**
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| 67 | * Authenticate a user using HTTP auth. Will use the configured User model and attempt a
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| 68 | * login using HTTP auth.
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| 69 | *
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| 70 | * @param CakeRequest $request The request to authenticate with.
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| 71 | * @param CakeResponse $response The response to add headers to.
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| 72 | * @return mixed Either false on failure, or an array of user data on success.
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| 73 | */
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| 74 | public function authenticate(CakeRequest $request, CakeResponse $response) { |
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| 75 | return $this->getUser($request); |
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| 76 | } |
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| 77 | |||
| 78 | /**
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| 79 | * Get a user based on information in the request. Used by cookie-less auth for stateless clients.
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| 80 | *
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| 81 | * @param CakeRequest $request Request object.
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| 82 | * @return mixed Either false or an array of user information
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| 83 | */
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| 84 | public function getUser(CakeRequest $request) { |
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| 85 | $username = env('PHP_AUTH_USER'); |
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| 86 | $pass = env('PHP_AUTH_PW'); |
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| 87 | |||
| 88 | if (!is_string($username) || $username === '' || !is_string($pass) || $pass === '') { |
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| 89 | return false; |
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| 90 | } |
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| 91 | return $this->_findUser($username, $pass); |
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| 92 | } |
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| 93 | |||
| 94 | /**
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| 95 | * Handles an unauthenticated access attempt by sending appropriate login headers
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| 96 | *
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| 97 | * @param CakeRequest $request A request object.
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| 98 | * @param CakeResponse $response A response object.
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| 99 | * @return void
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| 100 | * @throws UnauthorizedException
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| 101 | */
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| 102 | public function unauthenticated(CakeRequest $request, CakeResponse $response) { |
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| 103 | $Exception = new UnauthorizedException(); |
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| 104 | $Exception->responseHeader(array($this->loginHeaders())); |
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| 105 | throw $Exception; |
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| 106 | } |
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| 107 | |||
| 108 | /**
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| 109 | * Generate the login headers
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| 110 | *
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| 111 | * @return string Headers for logging in.
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| 112 | */
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| 113 | public function loginHeaders() { |
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| 114 | return sprintf('WWW-Authenticate: Basic realm="%s"', $this->settings['realm']); |
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| 115 | } |
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| 116 | |||
| 117 | } |