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<?php |
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namespace ByJG\RestServer\Middleware; |
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use ByJG\RestServer\Exception\Error415Exception; |
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use ByJG\RestServer\Exception\Error500Exception; |
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use ByJG\RestServer\HttpRequest; |
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use ByJG\RestServer\HttpResponse; |
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use ByJG\RestServer\OutputProcessor\HtmlOutputProcessor; |
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use ByJG\RestServer\ResponseBag; |
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use ByJG\Util\Uri; |
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use FastRoute\Dispatcher; |
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class ServerStaticMiddleware implements BeforeMiddlewareInterface |
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{ |
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/** |
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* Undocumented function |
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* |
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* @param mixed $dispatcherStatus |
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* @param HttpResponse $response |
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* @param HttpRequest $request |
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* @return MiddlewareResult |
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*/ |
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public function beforeProcess( |
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$dispatcherStatus, |
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HttpResponse $response, |
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HttpRequest $request |
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) |
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{ |
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if ($dispatcherStatus != Dispatcher::NOT_FOUND) { |
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return MiddlewareResult::continue(); |
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} |
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$requestUri = new Uri($_SERVER['REQUEST_URI']); |
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if ($requestUri->getScheme() === "file") { |
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$file = $requestUri->getPath(); |
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} else { |
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$script = explode('/', $_SERVER['SCRIPT_FILENAME']); |
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$script[count($script)-1] = ltrim($requestUri->getPath(), '/'); |
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$file = implode('/', $script); |
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} |
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if (file_exists($file)) { |
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$mime = $this->mimeContentType($file); |
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if (empty($mime)) { |
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return MiddlewareResult::continue(); |
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} |
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$response->addHeader("Content-Type", $mime); |
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$response->emptyResponse(); |
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$response->getResponseBag()->setSerializationRule(ResponseBag::RAW); |
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$response->write(file_get_contents($file)); |
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return MiddlewareResult::stopProcessingOthers(HtmlOutputProcessor::class); |
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} |
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return MiddlewareResult::continue(); |
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} |
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/** |
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* Get the Mime Type based on the filename |
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* |
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* @param string $filename |
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* @return string |
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*/ |
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public function mimeContentType($filename) |
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{ |
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if (!file_exists($filename)) { |
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return null; |
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} |
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$prohibitedTypes = [ |
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"php", |
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"vb", |
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"cs", |
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"rb", |
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"py", |
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"py3", |
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"lua" |
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]; |
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$ext = substr(strrchr($filename, "."), 1); |
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if (in_array($ext, $prohibitedTypes)) { |
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throw new Error415Exception("File type not supported"); |
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} |
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if (!function_exists('finfo_open')) { |
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throw new Error500Exception("ServerStaticMiddleware requires finfo extension"); |
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} |
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$finfo = finfo_open(FILEINFO_MIME); |
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$mimetype = finfo_file($finfo, $filename); |
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finfo_close($finfo); |
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return $mimetype; |
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} |
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} |
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byjg /
restserver
This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.