MethodOverride.php
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<?php
/**
* Slim - a micro PHP 5 framework
*
* @author Josh Lockhart <info@slimframework.com>
* @copyright 2011 Josh Lockhart
* @link http://www.slimframework.com
* @license http://www.slimframework.com/license
* @version 2.6.1
* @package Slim
*
* MIT LICENSE
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
namespace Slim\Middleware;
/**
* HTTP Method Override
*
* This is middleware for a Slim application that allows traditional
* desktop browsers to submit pseudo PUT and DELETE requests by relying
* on a pre-determined request parameter. Without this middleware,
* desktop browsers are only able to submit GET and POST requests.
*
* This middleware is included automatically!
*
* @package Slim
* @author Josh Lockhart
* @since 1.6.0
*/
class MethodOverride extends \Slim\Middleware
{
/**
* @var array
*/
protected $settings;
/**
* Constructor
* @param array $settings
*/
public function __construct($settings = array())
{
$this->settings = array_merge(array('key' => '_METHOD'), $settings);
}
/**
* Call
*
* Implements Slim middleware interface. This method is invoked and passed
* an array of environment variables. This middleware inspects the environment
* variables for the HTTP method override parameter; if found, this middleware
* modifies the environment settings so downstream middleware and/or the Slim
* application will treat the request with the desired HTTP method.
*
* @return array[status, header, body]
*/
public function call()
{
$env = $this->app->environment();
if (isset($env['HTTP_X_HTTP_METHOD_OVERRIDE'])) {
// Header commonly used by Backbone.js and others
$env['slim.method_override.original_method'] = $env['REQUEST_METHOD'];
$env['REQUEST_METHOD'] = strtoupper($env['HTTP_X_HTTP_METHOD_OVERRIDE']);
} elseif (isset($env['REQUEST_METHOD']) && $env['REQUEST_METHOD'] === 'POST') {
// HTML Form Override
$req = new \Slim\Http\Request($env);
$method = $req->post($this->settings['key']);
if ($method) {
$env['slim.method_override.original_method'] = $env['REQUEST_METHOD'];
$env['REQUEST_METHOD'] = strtoupper($method);
}
}
$this->next->call();
}
}