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275385d676
In some FastCGI setups basic auth values will only be present in the header. Fallback to reading that value if the PHP_AUTH super globals are empty. Refs #9365
123 lines
4.2 KiB
PHP
123 lines
4.2 KiB
PHP
<?php
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/**
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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App::uses('BaseAuthenticate', 'Controller/Component/Auth');
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/**
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* Basic Authentication adapter for AuthComponent.
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*
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* Provides Basic HTTP authentication support for AuthComponent. Basic Auth will
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* authenticate users against the configured userModel and verify the username
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* and passwords match.
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*
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* ### Using Basic auth
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*
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* In your controller's components array, add auth + the required settings.
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* ```
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* public $components = array(
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* 'Auth' => array(
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* 'authenticate' => array('Basic')
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* )
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* );
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* ```
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*
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* You should also set `AuthComponent::$sessionKey = false;` in your AppController's
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* beforeFilter() to prevent CakePHP from sending a session cookie to the client.
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*
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* Since HTTP Basic Authentication is stateless you don't need a login() action
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* in your controller. The user credentials will be checked on each request. If
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* valid credentials are not provided, required authentication headers will be sent
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* by this authentication provider which triggers the login dialog in the browser/client.
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*
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* You may also want to use `$this->Auth->unauthorizedRedirect = false;`.
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* By default, unauthorized users are redirected to the referrer URL,
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* `AuthComponent::$loginAction`, or '/'. If unauthorizedRedirect is set to
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* false, a ForbiddenException exception is thrown instead of redirecting.
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*
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* @package Cake.Controller.Component.Auth
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* @since 2.0
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*/
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class BasicAuthenticate extends BaseAuthenticate {
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/**
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* Constructor, completes configuration for basic authentication.
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*
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* @param ComponentCollection $collection The Component collection used on this request.
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* @param array $settings An array of settings.
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*/
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public function __construct(ComponentCollection $collection, $settings) {
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parent::__construct($collection, $settings);
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if (empty($this->settings['realm'])) {
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$this->settings['realm'] = env('SERVER_NAME');
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}
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}
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/**
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* Authenticate a user using HTTP auth. Will use the configured User model and attempt a
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* login using HTTP auth.
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*
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* @param CakeRequest $request The request to authenticate with.
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* @param CakeResponse $response The response to add headers to.
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* @return mixed Either false on failure, or an array of user data on success.
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*/
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public function authenticate(CakeRequest $request, CakeResponse $response) {
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return $this->getUser($request);
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}
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/**
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* Get a user based on information in the request. Used by cookie-less auth for stateless clients.
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*
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* @param CakeRequest $request Request object.
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* @return mixed Either false or an array of user information
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*/
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public function getUser(CakeRequest $request) {
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$username = env('PHP_AUTH_USER');
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$pass = env('PHP_AUTH_PW');
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if (!strlen($username)) {
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$httpAuthorization = $request->header('Authorization');
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if (strlen($httpAuthorization) > 0 && strpos($httpAuthorization, 'Basic') !== false) {
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list($username, $pass) = explode(':', base64_decode(substr($httpAuthorization, 6)));
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}
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}
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if (!is_string($username) || $username === '' || !is_string($pass) || $pass === '') {
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return false;
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}
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return $this->_findUser($username, $pass);
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}
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/**
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* Handles an unauthenticated access attempt by sending appropriate login headers
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*
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* @param CakeRequest $request A request object.
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* @param CakeResponse $response A response object.
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* @return void
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* @throws UnauthorizedException
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*/
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public function unauthenticated(CakeRequest $request, CakeResponse $response) {
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$Exception = new UnauthorizedException();
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$Exception->responseHeader(array($this->loginHeaders()));
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throw $Exception;
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}
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/**
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* Generate the login headers
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*
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* @return string Headers for logging in.
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*/
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public function loginHeaders() {
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return sprintf('WWW-Authenticate: Basic realm="%s"', $this->settings['realm']);
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}
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}
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