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<?php |
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/** |
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* Vperyod Method Override Handler |
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* |
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* PHP version 5 |
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* |
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* Copyright (C) 2016 Jake Johns |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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* |
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* @category Middleware |
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* @package Vperyod\MethodHandler |
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* @author Jake Johns <[email protected]> |
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* @copyright 2016 Jake Johns |
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* @license http://jnj.mit-license.org/2016 MIT License |
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* @link http://github.com/vperyod/vperyod.method-handler |
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*/ |
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namespace Vperyod\MethodHandler; |
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use Psr\Http\Message\ResponseInterface as Response; |
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use Psr\Http\Message\ServerRequestInterface as Request; |
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/** |
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* MethodHandler |
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* |
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* Parses request body and request headers and overrides request method for |
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* allowed request types |
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* |
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* @category Middleware |
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* @package Vperyod\MethodHandler |
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* @author Jake Johns <[email protected]> |
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* @license http://jnj.mit-license.org/ MIT License |
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* @link http://github.com/vperyod/vperyod.method-handler |
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*/ |
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class MethodHandler |
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{ |
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use MethodOverrideTrait; |
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/** |
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* __invoke |
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* |
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* @param Request $request PSR7 HTTP Request |
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* @param Response $response PSR7 HTTP Response |
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* @param callable $next Next callable middleware |
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* |
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* @return Response |
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* |
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* @access public |
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*/ |
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public function __invoke(Request $request, Response $response, callable $next) |
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{ |
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if (! $this->isOverridable($request) |
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|| ! $method = $this->getMethod($request) |
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) { |
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return $next($request, $response); |
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} |
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$request = $this->withMethod($request, $method); |
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return $next($request, $response); |
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} |
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/** |
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* Is Request Overidable? |
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* |
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* Method is considered overrideable if it is a post request |
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* |
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* @param Request $request PSR7 HTTP Request |
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* |
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* @return bool |
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* |
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* @access protected |
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*/ |
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protected function isOverridable(Request $request) |
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{ |
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return 'POST' === $request->getMethod(); |
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} |
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/** |
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* Get value with which to override method |
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* |
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* @param Request $request PSR7 HTTP Request |
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* |
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* @return string|null |
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* |
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* @access protected |
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*/ |
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protected function getMethod(Request $request) |
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{ |
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$param = $this->getMethodOverrideParam(); |
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$params = $request->getParsedBody(); |
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if (isset($params[$param])) { |
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return $params[$param]; |
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} |
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3 |
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$header = $this->getMethodOverrideHeader(); |
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if ($method = $request->getHeaderLine($header)) { |
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return $method; |
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} |
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1 |
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} |
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/** |
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* WithMethod |
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* |
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* @param Request $request DESCRIPTION |
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* @param mixed $method DESCRIPTION |
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* |
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* @return Request |
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* |
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* @access protected |
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*/ |
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protected function withMethod(Request $request, $method) |
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{ |
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$request = $request->withMethod($method); |
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$body = $request->getParsedBody(); |
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$param = $this->getMethodOverrideParam(); |
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if (isset($body[$param])) { |
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unset($body[$param]); |
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$request = $request->withParsedBody($body); |
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} |
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return $request; |
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} |
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} |
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vperyod /
vperyod.method-handler
