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<?php |
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namespace App\Middlewares; |
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use App\Http\Request; |
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use App\Http\Response; |
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use App\Http\Headers; |
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use App\Http\Interfaces\Middleware\ILayer; |
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use App\Container; |
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/** |
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* App\Middleware\Cors |
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* |
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* Patch initial response to accept CORS requests |
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*/ |
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class Cors implements ILayer |
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{ |
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use \App\Middlewares\Reuse\TInit; |
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const _PREFLIGHT = 'preflight'; |
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const _SIGN = 'X-Middleware-Cors'; |
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/** |
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* peel |
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* |
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* @param Container $container |
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* @param \Closure $next |
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* @return \Closure |
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*/ |
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public function peel(Container $container, \Closure $next) |
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{ |
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$this->init($container); |
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$this->process(); |
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return $next($container); |
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} |
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/** |
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* process |
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* |
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*/ |
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private function process() |
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{ |
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if ($this->enabled) { |
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$this->response->getHeaderManager()->add( |
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self::_SIGN, |
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microtime(true) |
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); |
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if ($this->required()) { |
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if (Request::METHOD_OPTIONS == $this->request->getMethod()) { |
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$pureCa = preg_replace('/\?.*/', '', $this->caUri()) . '/'; |
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$caFrags = explode('/', $pureCa); |
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$controller = $caFrags[0]; |
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$this->kernel->setAction([$controller, self::_PREFLIGHT]); |
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} |
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$this->response |
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->setCode(Response::HTTP_NOT_FOUND) |
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->setContent([ |
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Response::_ERROR_CODE => Response::HTTP_NOT_FOUND, |
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Response::_ERROR_MSG => 'Not found' |
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]) |
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->getHeaderManager() |
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->add(Headers::CONTENT_TYPE, 'application/json; charset=utf-8') |
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->addMany([ |
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Headers::HEADER_ACA_ORIGIN => '*', |
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Headers::HEADER_ACA_CREDENTIALS => 'true', |
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Headers::HEADER_ACA_METHODS => implode(',', [ |
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Request::METHOD_GET, Request::METHOD_POST, Request::METHOD_PUT, |
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Request::METHOD_DELETE, Request::METHOD_OPTIONS |
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]), |
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Headers::HEADER_ACA_HEADERS => implode(',', [ |
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'Access-Control-Allow-Headers', 'Origin', 'Accept', |
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'X-Requested-With', 'Content-Type', 'Access-Control-Request-Method', |
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'Access-Control-Request-Headers', 'Access-Control-Allow-Origin', |
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'Authorization' |
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]) |
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]); |
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} |
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} |
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} |
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/** |
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* required |
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* |
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* @return boolean |
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*/ |
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protected function required(): bool |
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{ |
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return (!$this->isExclude() |
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&& $this->requestUriPrefix() === $this->prefix); |
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} |
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/** |
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* isExclude |
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* |
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* @return Boolean |
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*/ |
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protected function isExclude(): bool |
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{ |
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$disallowed = $this->configParams['exclude']; |
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$countEx = count($disallowed); |
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for ($c = 0; $c < $countEx; ++$c) { |
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$excludeUri = $this->prefix . $disallowed[$c]; |
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$isExclude = ($excludeUri == $this->request->getUri()); |
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if ($isExclude) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* return controller action from uri |
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* |
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* @return string |
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*/ |
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protected function caUri():string |
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{ |
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return str_replace($this->prefix, '', $this->request->getUri()); |
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} |
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/** |
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123
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* uriPrefix |
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* |
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* @return string |
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*/ |
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1 |
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protected function requestUriPrefix(): string |
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{ |
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1 |
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return substr($this->request->getUri(), 0, strlen($this->prefix)); |
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} |
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} |
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pierre-fromager /
nymfonya
