First commit !

src/Exception/JavascriptException.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace TheBugs\Exception;
+
+class JavascriptException extends \Exception {
+
+    protected $url;
+
+    protected $stacktrace;
+
+    public function __construct(string $message, int $code, Exception $previous = null, string $file, int $line, string $url, array $trace)
+    {
+        $this->message = $message;
+        $this->code = $code;
+        $this->previous = $previous;
+        $this->file = $file;
+        $this->line = $line;
+        $this->url = $url;
+        $this->stacktrace = $trace;
+    }
+
+    public function __toString() {
+        return __CLASS__ . ": [{$this->url}:{$this->code}]: {$this->message}\n" . json_encode($this->stacktrace);
+    }
+
+}

src/JavascriptMiddleware.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace TheBugs;
+
+use Psr\Http\Message\ResponseFactoryInterface,
+    Psr\Container\ContainerInterface,
+    Psr\Http\Message\ResponseInterface,
+    Psr\Http\Message\ServerRequestInterface,
+    Psr\Http\Server\MiddlewareInterface,
+    Psr\Http\Server\RequestHandlerInterface;
+
+use Zend\Diactoros\Response,
+    Zend\Diactoros\ServerRequest,
+    Zend\Diactoros\Stream,
+    Zend\Diactoros\Uri;
+
+class JavascriptMiddleware implements MiddlewareInterface
+{
+    const FILTERS = [
+        "code" => null,
+        "headers" => [
+            "User-Agent" => "TheBugs/1.0",
+        ],
+    ];
+
+    /**
+     * Filter list, allows custom invokable
+     * @var array
+     */
+    protected $filters = [];
+
+    public function __construct($options = [])
+    {
+        foreach(static::FILTERS as $key => $default) {
+            $this->filters[$key] = ( $options[$key] ?? false ) ? $options[$key] : $default;
+        }
+    }
+
+    public function throwError($errorDetails)
+    {
+        throw new Exception\JavascriptException($errorDetails['message'], 0, null, $errorDetails['location'], $errorDetails['line'], $errorDetails['url'], (array) $errorDetails['stack']);
+    }
+
+    /**
+     * Process a server request and return a response.
+     */
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        if ( ( $this->filters['code'] ?? false ) && ($this->filters['code'] !== $request->getCode())) {
+            return $handler->handle($request);
+        }
+
+        foreach($this->filters['headers'] as $key => $value) {
+            if ( ! in_array($value, $request->getHeader($key)) ) {
+                return $handler->handle($request);
+            }
+        }
+
+        $this->throwError(json_decode($request->getBody(), true));
+    }
+
+}

src/WhoopsHandler.php

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+<?php
+
+use Whoops\Run as Whoops;
+use Whoops\Handler\PrettyPageHandler as Handler;
+
+$whoops = new Whoops();
+$whoops->allowQuit(false);
+$whoops->writeToOutput(false);
+$whoops->pushHandler(new Handler());
+
+IF CLI {
+    $handler->handleUnconditionally(true);
+}
+
+$body = $whoops->handleException($this->exception);