wip

app/Client/ProxyManager.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace App\Client;
+
+use App\Logger\RequestLogger;
+use BFunky\HttpParser\HttpRequestParser;
+use BFunky\HttpParser\HttpResponseParser;
+use Illuminate\Support\Arr;
+use Illuminate\Support\Str;
+use React\Socket\ConnectionInterface;
+use React\Socket\Connector;
+use React\Stream\ThroughStream;
+use React\Stream\Util;
+use React\Stream\WritableResourceStream;
+use GuzzleHttp\Psr7 as gPsr;
+use function GuzzleHttp\Psr7\parse_request;
+
+class ProxyManager
+{
+    private $host;
+    private $port;
+    private $loop;
+
+    public function __construct($host, $port, $loop)
+    {
+        $this->host = $host;
+        $this->port = $port;
+        $this->loop = $loop;
+    }
+
+    public function createProxy(ConnectionInterface $clientConnection, $connectionData)
+    {
+        $connector = new Connector($this->loop);
+        $connector->connect("{$this->host}:{$this->port}")->then(function (ConnectionInterface $proxyConnection) use ($clientConnection, $connector, $connectionData) {
+            $proxyConnection->write(json_encode([
+                'event' => 'registerProxy',
+                'data' => [
+                    'request_id' => $connectionData->request_id ?? null,
+                    'client_id' => $clientConnection->_id,
+                ],
+            ]));
+
+            $proxyConnection->on('data', function ($data) use (&$proxyData, $proxyConnection, $connector) {
+                if (!isset($proxyConnection->buffer)) {
+                    $proxyConnection->buffer = '';
+                }
+
+                $proxyConnection->buffer .= $data;
+
+                if ($this->hasBufferedAllData($proxyConnection)) {
+                    $tunnel = app(TunnelConnection::class);
+
+                    $tunnel->performRequest($proxyConnection->buffer, $proxyConnection);
+                }
+            });
+        });
+    }
+
+    private function parseResponse(string $response)
+    {
+        try {
+            return gPsr\parse_response($response);
+        } catch (\Throwable $e) {
+            return null;
+        }
+    }
+
+    private function parseRequest($data)
+    {
+        return gPsr\parse_request($data);
+    }
+
+    protected function getContentLength($proxyConnection): ?int
+    {
+        $request = parse_request($proxyConnection->buffer);
+
+        return Arr::first($request->getHeader('Content-Length'));
+    }
+
+    protected function hasBufferedAllData($proxyConnection)
+    {
+        return is_null($this->getContentLength($proxyConnection)) || strlen(Str::after($proxyConnection->buffer, "\r\n\r\n")) >= $this->getContentLength($proxyConnection);
+    }
+}