Merge pull request #128 from beyondcode/analysis-1b2KYL

Apply fixes from StyleCI

app/Client/Client.php

@@ -49,6 +49,11 @@ class Client
         }
     }
 
+    public function sharePort(int $port)
+    {
+        $this->connectToServerAndShareTcp($port, config('expose.auth_token'));
+    }
+
     protected function prepareSharedUrl(string $sharedUrl): string
     {
         if (! $parsedUrl = parse_url($sharedUrl)) {
@@ -87,14 +92,12 @@ class Client
                 $clientConnection->on('close', function () use ($sharedUrl, $subdomain, $authToken) {
                     $this->logger->error('Connection to server closed.');
 
-                    $this->retryConnectionOrExit($sharedUrl, $subdomain, $authToken);
+                    $this->retryConnectionOrExit(function () use ($sharedUrl, $subdomain, $authToken) {
+                        $this->connectToServer($sharedUrl, $subdomain, $authToken);
+                    });
                 });
 
-                $connection->on('authenticationFailed', function ($data) use ($deferred) {
-                    $this->logger->error($data->message);
-
-                    $this->exit($deferred);
-                });
+                $this->attachCommonConnectionListeners($connection, $deferred);
 
                 $connection->on('subdomainTaken', function ($data) use ($deferred) {
                     $this->logger->error($data->message);
@@ -102,20 +105,6 @@ class Client
                     $this->exit($deferred);
                 });
 
-                $connection->on('setMaximumConnectionLength', function ($data) {
-                    $timeoutSection = $this->logger->getOutput()->section();
-
-                    $this->loop->addPeriodicTimer(1, function () use ($data, $timeoutSection) {
-                        $this->timeConnected++;
-
-                        $secondsRemaining = $data->length * 60 - $this->timeConnected;
-                        $remaining = Carbon::now()->diff(Carbon::now()->addSeconds($secondsRemaining));
-
-                        $timeoutSection->clear();
-                        $timeoutSection->writeln('Remaining time: '.$remaining->format('%H:%I:%S'));
-                    });
-                });
-
                 $connection->on('authenticated', function ($data) use ($deferred, $sharedUrl) {
                     $httpProtocol = $this->configuration->port() === 443 ? 'https' : 'http';
                     $host = $this->configuration->host();
@@ -136,7 +125,9 @@ class Client
                 });
             }, function (\Exception $e) use ($deferred, $sharedUrl, $subdomain, $authToken) {
                 if ($this->connectionRetries > 0) {
-                    $this->retryConnectionOrExit($sharedUrl, $subdomain, $authToken);
+                    $this->retryConnectionOrExit(function () use ($sharedUrl, $subdomain, $authToken) {
+                        $this->connectToServer($sharedUrl, $subdomain, $authToken);
+                    });
 
                     return;
                 }
@@ -149,6 +140,84 @@ class Client
         return $promise;
     }
 
+    public function connectToServerAndShareTcp(int $port, $authToken = ''): PromiseInterface
+    {
+        $deferred = new Deferred();
+        $promise = $deferred->promise();
+
+        $wsProtocol = $this->configuration->port() === 443 ? 'wss' : 'ws';
+
+        connect($wsProtocol."://{$this->configuration->host()}:{$this->configuration->port()}/expose/control?authToken={$authToken}", [], [
+            'X-Expose-Control' => 'enabled',
+        ], $this->loop)
+            ->then(function (WebSocket $clientConnection) use ($port, $deferred, $authToken) {
+                $this->connectionRetries = 0;
+
+                $connection = ControlConnection::create($clientConnection);
+
+                $connection->authenticateTcp($port);
+
+                $this->attachCommonConnectionListeners($connection, $deferred);
+
+                $clientConnection->on('close', function () use ($port, $authToken) {
+                    $this->logger->error('Connection to server closed.');
+
+                    $this->retryConnectionOrExit(function () use ($port, $authToken) {
+                        $this->connectToServerAndShareTcp($port, $authToken);
+                    });
+                });
+
+                $connection->on('authenticated', function ($data) use ($deferred, $port) {
+                    $host = $this->configuration->host();
+
+                    $this->logger->info($data->message);
+                    $this->logger->info("Local-Port:\t\t{$port}");
+                    $this->logger->info("Shared-Port:\t\t{$data->shared_port}");
+                    $this->logger->info("Expose-URL:\t\ttcp://{$host}:{$data->shared_port}.");
+                    $this->logger->line('');
+
+                    $deferred->resolve($data);
+                });
+            }, function (\Exception $e) use ($deferred, $port, $authToken) {
+                if ($this->connectionRetries > 0) {
+                    $this->retryConnectionOrExit(function () use ($port, $authToken) {
+                        $this->connectToServerAndShareTcp($port, $authToken);
+                    });
+
+                    return;
+                }
+                $this->logger->error('Could not connect to the server.');
+                $this->logger->error($e->getMessage());
+
+                $this->exit($deferred);
+            });
+
+        return $promise;
+    }
+
+    protected function attachCommonConnectionListeners(ControlConnection $connection, Deferred $deferred)
+    {
+        $connection->on('authenticationFailed', function ($data) use ($deferred) {
+            $this->logger->error($data->message);
+
+            $this->exit($deferred);
+        });
+
+        $connection->on('setMaximumConnectionLength', function ($data) {
+            $timeoutSection = $this->logger->getOutput()->section();
+
+            $this->loop->addPeriodicTimer(1, function () use ($data, $timeoutSection) {
+                $this->timeConnected++;
+
+                $secondsRemaining = $data->length * 60 - $this->timeConnected;
+                $remaining = Carbon::now()->diff(Carbon::now()->addSeconds($secondsRemaining));
+
+                $timeoutSection->clear();
+                $timeoutSection->writeln('Remaining time: '.$remaining->format('%H:%I:%S'));
+            });
+        });
+    }
+
     protected function exit(Deferred $deferred)
     {
         $deferred->reject();
@@ -158,15 +227,15 @@ class Client
         });
     }
 
-    protected function retryConnectionOrExit(string $sharedUrl, $subdomain, $authToken = '')
+    protected function retryConnectionOrExit(callable $retry)
     {
         $this->connectionRetries++;
 
         if ($this->connectionRetries <= static::MAX_CONNECTION_RETRIES) {
-            $this->loop->addTimer($this->connectionRetries, function () use ($sharedUrl, $subdomain, $authToken) {
+            $this->loop->addTimer($this->connectionRetries, function () use ($retry) {
                 $this->logger->info("Retrying connection ({$this->connectionRetries}/".static::MAX_CONNECTION_RETRIES.')');
 
-                $this->connectToServer($sharedUrl, $subdomain, $authToken);
+                $retry();
             });
         } else {
             exit(1);

app/Client/Connections/ControlConnection.php

@@ -52,17 +52,34 @@ class ControlConnection
         $this->proxyManager->createProxy($this->clientId, $data);
     }
 
+    public function createTcpProxy($data)
+    {
+        $this->proxyManager->createTcpProxy($this->clientId, $data);
+    }
+
     public function authenticate(string $sharedHost, string $subdomain)
     {
         $this->socket->send(json_encode([
             'event' => 'authenticate',
             'data' => [
+                'type' => 'http',
                 'host' => $sharedHost,
                 'subdomain' => empty($subdomain) ? null : $subdomain,
             ],
         ]));
     }
 
+    public function authenticateTcp(int $port)
+    {
+        $this->socket->send(json_encode([
+            'event' => 'authenticate',
+            'data' => [
+                'type' => 'tcp',
+                'port' => $port,
+            ],
+        ]));
+    }
+
     public function ping()
     {
         $this->socket->send(json_encode([

app/Client/Factory.php

@@ -109,6 +109,13 @@ class Factory
         return $this;
     }
 
+    public function sharePort(int $port)
+    {
+        app('expose.client')->sharePort($port);
+
+        return $this;
+    }
+
     protected function addRoutes()
     {
         $this->router->get('/', DashboardController::class);

app/Client/ProxyManager.php

@@ -5,7 +5,9 @@ namespace App\Client;
 use App\Client\Http\HttpClient;
 use function Ratchet\Client\connect;
 use Ratchet\Client\WebSocket;
+use Ratchet\RFC6455\Messaging\Frame;
 use React\EventLoop\LoopInterface;
+use React\Socket\Connector;
 
 class ProxyManager
 {
@@ -43,6 +45,37 @@ class ProxyManager
             });
     }
 
+    public function createTcpProxy(string $clientId, $connectionData)
+    {
+        $protocol = $this->configuration->port() === 443 ? 'wss' : 'ws';
+
+        connect($protocol."://{$this->configuration->host()}:{$this->configuration->port()}/expose/control", [], [
+            'X-Expose-Control' => 'enabled',
+        ], $this->loop)
+            ->then(function (WebSocket $proxyConnection) use ($clientId, $connectionData) {
+                $connector = new Connector($this->loop);
+
+                $connector->connect('127.0.0.1:'.$connectionData->port)->then(function ($connection) use ($proxyConnection) {
+                    $connection->on('data', function ($data) use ($proxyConnection) {
+                        $binaryMsg = new Frame($data, true, Frame::OP_BINARY);
+                        $proxyConnection->send($binaryMsg);
+                    });
+
+                    $proxyConnection->on('message', function ($message) use ($connection) {
+                        $connection->write($message);
+                    });
+                });
+
+                $proxyConnection->send(json_encode([
+                    'event' => 'registerTcpProxy',
+                    'data' => [
+                        'tcp_request_id' => $connectionData->tcp_request_id ?? null,
+                        'client_id' => $clientId,
+                    ],
+                ]));
+            });
+    }
+
     protected function performRequest(WebSocket $proxyConnection, $requestId, string $requestData)
     {
         app(HttpClient::class)->performRequest((string) $requestData, $proxyConnection, $requestId);

app/Commands/ShareCurrentWorkingDirectoryCommand.php

@@ -8,12 +8,12 @@ class ShareCurrentWorkingDirectoryCommand extends ShareCommand
 
     public function handle()
     {
-        $host = $this->prepareSharedHost(basename(getcwd()).'.'.$this->detectTld());
+        $subdomain = $this->detectName();
+        $host = $this->prepareSharedHost($subdomain.'.'.$this->detectTld());
 
         $this->input->setArgument('host', $host);
 
         if (! $this->option('subdomain')) {
-            $subdomain = str_replace('.', '-', basename(getcwd()));
             $this->input->setOption('subdomain', $subdomain);
         }
 
@@ -33,6 +33,32 @@ class ShareCurrentWorkingDirectoryCommand extends ShareCommand
         return config('expose.default_tld', 'test');
     }
 
+    protected function detectName(): string
+    {
+        $projectPath = getcwd();
+        $valetSitesPath = ($_SERVER['HOME'] ?? $_SERVER['USERPROFILE']).DIRECTORY_SEPARATOR.'.config'.DIRECTORY_SEPARATOR.'valet'.DIRECTORY_SEPARATOR.'Sites';
+
+        if (is_dir($valetSitesPath)) {
+            $site = collect(scandir($valetSitesPath))
+            ->skip(2)
+            ->map(function ($site) use ($valetSitesPath) {
+                return $valetSitesPath.DIRECTORY_SEPARATOR.$site;
+            })->mapWithKeys(function ($site) {
+                return [$site => readlink($site)];
+            })->filter(function ($sourcePath) use ($projectPath) {
+                return $sourcePath === $projectPath;
+            })
+            ->keys()
+            ->first();
+
+            if ($site) {
+                $projectPath = $site;
+            }
+        }
+
+        return str_replace('.', '-', basename($projectPath));
+    }
+
     protected function prepareSharedHost($host): string
     {
         $certificateFile = ($_SERVER['HOME'] ?? $_SERVER['USERPROFILE']).DIRECTORY_SEPARATOR.'.config'.DIRECTORY_SEPARATOR.'valet'.DIRECTORY_SEPARATOR.'Certificates'.DIRECTORY_SEPARATOR.$host.'.crt';

app/Commands/SharePortCommand.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Commands;
+
+use App\Client\Factory;
+use App\Logger\CliRequestLogger;
+use LaravelZero\Framework\Commands\Command;
+use React\EventLoop\LoopInterface;
+use Symfony\Component\Console\Output\ConsoleOutput;
+
+class SharePortCommand extends Command
+{
+    protected $signature = 'share-port {port} {--auth=}';
+
+    protected $description = 'Share a local port with a remote expose server';
+
+    protected function configureConnectionLogger()
+    {
+        app()->bind(CliRequestLogger::class, function () {
+            return new CliRequestLogger(new ConsoleOutput());
+        });
+
+        return $this;
+    }
+
+    public function handle()
+    {
+        $this->configureConnectionLogger();
+
+        (new Factory())
+            ->setLoop(app(LoopInterface::class))
+            ->setHost(config('expose.host', 'localhost'))
+            ->setPort(config('expose.port', 8080))
+            ->setAuth($this->option('auth'))
+            ->createClient()
+            ->sharePort($this->argument('port'))
+            ->createHttpServer()
+            ->run();
+    }
+}

app/Contracts/ConnectionManager.php

@@ -10,6 +10,8 @@ interface ConnectionManager
 {
     public function storeConnection(string $host, ?string $subdomain, ConnectionInterface $connection): ControlConnection;
 
+    public function storeTcpConnection(int $port, ConnectionInterface $connection): ControlConnection;
+
     public function limitConnectionLength(ControlConnection $connection, int $maximumConnectionLength);
 
     public function storeHttpConnection(ConnectionInterface $httpConnection, $requestId): HttpConnection;
@@ -23,4 +25,8 @@ interface ConnectionManager
     public function findControlConnectionForClientId(string $clientId): ?ControlConnection;
 
     public function getConnections(): array;
+
+    public function getConnectionsForAuthToken(string $authToken): array;
+
+    public function getTcpConnectionsForAuthToken(string $authToken): array;
 }

app/Logger/LoggedRequest.php

@@ -308,6 +308,12 @@ class LoggedRequest implements \JsonSerializable
 
     protected function getRequestAsCurl(): string
     {
+        $maxRequestLength = 256000;
+
+        if (strlen($this->rawRequest) > $maxRequestLength) {
+            return '';
+        }
+
         try {
             return (new CurlFormatter())->format(parse_request($this->rawRequest));
         } catch (\Throwable $e) {

app/Server/Connections/ConnectionManager.php

@@ -4,8 +4,11 @@ namespace App\Server\Connections;
 
 use App\Contracts\ConnectionManager as ConnectionManagerContract;
 use App\Contracts\SubdomainGenerator;
+use App\Http\QueryParameters;
+use App\Server\Exceptions\NoFreePortAvailable;
 use Ratchet\ConnectionInterface;
 use React\EventLoop\LoopInterface;
+use React\Socket\Server;
 
 class ConnectionManager implements ConnectionManagerContract
 {
@@ -46,13 +49,62 @@ class ConnectionManager implements ConnectionManagerContract
 
         $connection->client_id = $clientId;
 
-        $storedConnection = new ControlConnection($connection, $host, $subdomain ?? $this->subdomainGenerator->generateSubdomain(), $clientId);
+        $storedConnection = new ControlConnection(
+            $connection,
+            $host,
+            $subdomain ?? $this->subdomainGenerator->generateSubdomain(),
+            $clientId,
+            $this->getAuthTokenFromConnection($connection)
+        );
 
         $this->connections[] = $storedConnection;
 
         return $storedConnection;
     }
 
+    public function storeTcpConnection(int $port, ConnectionInterface $connection): ControlConnection
+    {
+        $clientId = (string) uniqid();
+
+        $connection->client_id = $clientId;
+
+        $storedConnection = new TcpControlConnection(
+            $connection,
+            $port,
+            $this->getSharedTcpServer(),
+            $clientId,
+            $this->getAuthTokenFromConnection($connection)
+        );
+
+        $this->connections[] = $storedConnection;
+
+        return $storedConnection;
+    }
+
+    protected function getSharedTcpServer(): Server
+    {
+        $portRange = config('expose.admin.tcp_port_range');
+
+        $port = $portRange['from'] ?? 50000;
+        $maxPort = $portRange['to'] ?? 60000;
+
+        do {
+            try {
+                $portFound = true;
+                $server = new Server('0.0.0.0:'.$port, $this->loop);
+            } catch (\RuntimeException $exception) {
+                $portFound = false;
+                $port++;
+
+                if ($port > $maxPort) {
+                    throw new NoFreePortAvailable();
+                }
+            }
+        } while (! $portFound);
+
+        return $server;
+    }
+
     public function storeHttpConnection(ConnectionInterface $httpConnection, $requestId): HttpConnection
     {
         $this->httpConnections[$requestId] = new HttpConnection($httpConnection);
@@ -75,6 +127,16 @@ class ConnectionManager implements ConnectionManagerContract
 
         if (isset($connection->client_id)) {
             $clientId = $connection->client_id;
+
+            $controlConnection = collect($this->connections)->first(function ($connection) use ($clientId) {
+                return $connection->client_id == $clientId;
+            });
+
+            if ($controlConnection instanceof TcpControlConnection) {
+                $controlConnection->stop();
+                $controlConnection = null;
+            }
+
             $this->connections = collect($this->connections)->reject(function ($connection) use ($clientId) {
                 return $connection->client_id == $clientId;
             })->toArray();
@@ -99,4 +161,41 @@ class ConnectionManager implements ConnectionManagerContract
     {
         return $this->connections;
     }
+
+    protected function getAuthTokenFromConnection(ConnectionInterface $connection): string
+    {
+        return QueryParameters::create($connection->httpRequest)->get('authToken');
+    }
+
+    public function getConnectionsForAuthToken(string $authToken): array
+    {
+        return collect($this->connections)
+            ->filter(function ($connection) use ($authToken) {
+                return $connection->authToken === $authToken;
+            })
+            ->filter(function ($connection) {
+                return get_class($connection) === ControlConnection::class;
+            })
+            ->map(function ($connection) {
+                return $connection->toArray();
+            })
+            ->values()
+            ->toArray();
+    }
+
+    public function getTcpConnectionsForAuthToken(string $authToken): array
+    {
+        return collect($this->connections)
+            ->filter(function ($connection) use ($authToken) {
+                return $connection->authToken === $authToken;
+            })
+            ->filter(function ($connection) {
+                return get_class($connection) === TcpControlConnection::class;
+            })
+            ->map(function ($connection) {
+                return $connection->toArray();
+            })
+            ->values()
+            ->toArray();
+    }
 }

app/Server/Connections/ControlConnection.php

@@ -12,17 +12,19 @@ class ControlConnection
     /** @var ConnectionInterface */
     public $socket;
     public $host;
+    public $authToken;
     public $subdomain;
     public $client_id;
     public $proxies = [];
     protected $shared_at;
 
-    public function __construct(ConnectionInterface $socket, string $host, string $subdomain, string $clientId)
+    public function __construct(ConnectionInterface $socket, string $host, string $subdomain, string $clientId, string $authToken = '')
     {
         $this->socket = $socket;
         $this->host = $host;
         $this->subdomain = $subdomain;
         $this->client_id = $clientId;
+        $this->authToken = $authToken;
         $this->shared_at = now()->toDateTimeString();
     }
 
@@ -55,8 +57,10 @@ class ControlConnection
     public function toArray()
     {
         return [
+            'type' => 'http',
             'host' => $this->host,
             'client_id' => $this->client_id,
+            'auth_token' => $this->authToken,
             'subdomain' => $this->subdomain,
             'shared_at' => $this->shared_at,
         ];

app/Server/Connections/TcpControlConnection.php

@@ -0,0 +1,107 @@
+<?php
+
+namespace App\Server\Connections;
+
+use Ratchet\ConnectionInterface;
+use Ratchet\RFC6455\Messaging\Frame;
+use React\Socket\Server;
+
+class TcpControlConnection extends ControlConnection
+{
+    public $proxy;
+    public $proxyConnection;
+    public $port;
+    public $shared_port;
+    public $shared_server;
+
+    public function __construct(ConnectionInterface $socket, int $port, Server $sharedServer, string $clientId, string $authToken = '')
+    {
+        $this->socket = $socket;
+        $this->client_id = $clientId;
+        $this->shared_server = $sharedServer;
+        $this->port = $port;
+        $this->shared_at = now()->toDateTimeString();
+        $this->shared_port = parse_url($sharedServer->getAddress(), PHP_URL_PORT);
+        $this->authToken = $authToken;
+
+        $this->configureServer($sharedServer);
+    }
+
+    public function setMaximumConnectionLength(int $maximumConnectionLength)
+    {
+        $this->socket->send(json_encode([
+            'event' => 'setMaximumConnectionLength',
+            'data' => [
+                'length' => $maximumConnectionLength,
+            ],
+        ]));
+    }
+
+    public function registerProxy($requestId)
+    {
+        $this->socket->send(json_encode([
+            'event' => 'createProxy',
+            'data' => [
+                'request_id' => $requestId,
+                'client_id' => $this->client_id,
+            ],
+        ]));
+    }
+
+    public function registerTcpProxy($requestId)
+    {
+        $this->socket->send(json_encode([
+            'event' => 'createTcpProxy',
+            'data' => [
+                'port' => $this->port,
+                'tcp_request_id' => $requestId,
+                'client_id' => $this->client_id,
+            ],
+        ]));
+    }
+
+    public function stop()
+    {
+        $this->shared_server->close();
+        $this->shared_server = null;
+    }
+
+    public function close()
+    {
+        $this->socket->close();
+    }
+
+    public function toArray()
+    {
+        return [
+            'type' => 'tcp',
+            'port' => $this->port,
+            'client_id' => $this->client_id,
+            'shared_port' => $this->shared_port,
+            'shared_at' => $this->shared_at,
+        ];
+    }
+
+    protected function configureServer(Server $sharedServer)
+    {
+        $requestId = uniqid();
+
+        $sharedServer->on('connection', function (\React\Socket\ConnectionInterface $connection) use ($requestId) {
+            $this->proxyConnection = $connection;
+
+            $this->once('tcp_proxy_ready_'.$requestId, function (ConnectionInterface $proxy) use ($connection) {
+                $this->proxy = $proxy;
+
+                $connection->on('data', function ($data) use ($proxy) {
+                    $binaryMsg = new Frame($data, true, Frame::OP_BINARY);
+                    $proxy->send($binaryMsg);
+                });
+
+                $connection->resume();
+            });
+
+            $connection->pause();
+            $this->registerTcpProxy($requestId);
+        });
+    }
+}

app/Server/Exceptions/NoFreePortAvailable.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace App\Server\Exceptions;
+
+class NoFreePortAvailable extends \Exception
+{
+}

app/Server/Factory.php

@@ -10,10 +10,14 @@ use App\Http\Server as HttpServer;
 use App\Server\Connections\ConnectionManager;
 use App\Server\Http\Controllers\Admin\DeleteUsersController;
 use App\Server\Http\Controllers\Admin\DisconnectSiteController;
+use App\Server\Http\Controllers\Admin\DisconnectTcpConnectionController;
 use App\Server\Http\Controllers\Admin\GetSettingsController;
 use App\Server\Http\Controllers\Admin\GetSitesController;
+use App\Server\Http\Controllers\Admin\GetTcpConnectionsController;
+use App\Server\Http\Controllers\Admin\GetUserDetailsController;
 use App\Server\Http\Controllers\Admin\GetUsersController;
 use App\Server\Http\Controllers\Admin\ListSitesController;
+use App\Server\Http\Controllers\Admin\ListTcpConnectionsController;
 use App\Server\Http\Controllers\Admin\ListUsersController;
 use App\Server\Http\Controllers\Admin\RedirectToUsersController;
 use App\Server\Http\Controllers\Admin\ShowSettingsController;
@@ -119,14 +123,18 @@ class Factory
         $this->router->get('/users', ListUsersController::class, $adminCondition);
         $this->router->get('/settings', ShowSettingsController::class, $adminCondition);
         $this->router->get('/sites', ListSitesController::class, $adminCondition);
+        $this->router->get('/tcp', ListTcpConnectionsController::class, $adminCondition);
 
         $this->router->get('/api/settings', GetSettingsController::class, $adminCondition);
         $this->router->post('/api/settings', StoreSettingsController::class, $adminCondition);
         $this->router->get('/api/users', GetUsersController::class, $adminCondition);
         $this->router->post('/api/users', StoreUsersController::class, $adminCondition);
+        $this->router->get('/api/users/{id}', GetUserDetailsController::class, $adminCondition);
         $this->router->delete('/api/users/{id}', DeleteUsersController::class, $adminCondition);
         $this->router->get('/api/sites', GetSitesController::class, $adminCondition);
         $this->router->delete('/api/sites/{id}', DisconnectSiteController::class, $adminCondition);
+        $this->router->get('/api/tcp', GetTcpConnectionsController::class, $adminCondition);
+        $this->router->delete('/api/tcp/{id}', DisconnectTcpConnectionController::class, $adminCondition);
     }
 
     protected function bindConfiguration()

app/Server/Http/Controllers/Admin/DisconnectTcpConnectionController.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace App\Server\Http\Controllers\Admin;
+
+use App\Contracts\ConnectionManager;
+use App\Server\Configuration;
+use App\Server\Connections\TcpControlConnection;
+use Illuminate\Http\Request;
+use Ratchet\ConnectionInterface;
+
+class DisconnectTcpConnectionController extends AdminController
+{
+    /** @var ConnectionManager */
+    protected $connectionManager;
+
+    /** @var Configuration */
+    protected $configuration;
+
+    public function __construct(ConnectionManager $connectionManager)
+    {
+        $this->connectionManager = $connectionManager;
+    }
+
+    public function handle(Request $request, ConnectionInterface $httpConnection)
+    {
+        $connection = $this->connectionManager->findControlConnectionForClientId($request->get('id'));
+
+        if (! is_null($connection)) {
+            $connection->close();
+
+            $this->connectionManager->removeControlConnection($connection);
+        }
+
+        $httpConnection->send(respond_json([
+            'tcp_connections' => collect($this->connectionManager->getConnections())
+                ->filter(function ($connection) {
+                    return get_class($connection) === TcpControlConnection::class;
+                })
+                ->values(),
+        ]));
+    }
+}

app/Server/Http/Controllers/Admin/GetSitesController.php

@@ -4,6 +4,7 @@ namespace App\Server\Http\Controllers\Admin;
 
 use App\Contracts\ConnectionManager;
 use App\Server\Configuration;
+use App\Server\Connections\ControlConnection;
 use Illuminate\Http\Request;
 use Ratchet\ConnectionInterface;
 
@@ -23,12 +24,16 @@ class GetSitesController extends AdminController
     {
         $httpConnection->send(
             respond_json([
-                'sites' => collect($this->connectionManager->getConnections())->map(function ($site, $siteId) {
-                    $site = $site->toArray();
-                    $site['id'] = $siteId;
+                'sites' => collect($this->connectionManager->getConnections())
+                    ->filter(function ($connection) {
+                        return get_class($connection) === ControlConnection::class;
+                    })
+                    ->map(function ($site, $siteId) {
+                        $site = $site->toArray();
+                        $site['id'] = $siteId;
 
-                    return $site;
-                })->values(),
+                        return $site;
+                    })->values(),
             ])
         );
     }

app/Server/Http/Controllers/Admin/GetTcpConnectionsController.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Server\Http\Controllers\Admin;
+
+use App\Contracts\ConnectionManager;
+use App\Server\Configuration;
+use App\Server\Connections\TcpControlConnection;
+use Illuminate\Http\Request;
+use Ratchet\ConnectionInterface;
+
+class GetTcpConnectionsController extends AdminController
+{
+    /** @var ConnectionManager */
+    protected $connectionManager;
+    /** @var Configuration */
+    protected $configuration;
+
+    public function __construct(ConnectionManager $connectionManager, Configuration $configuration)
+    {
+        $this->connectionManager = $connectionManager;
+    }
+
+    public function handle(Request $request, ConnectionInterface $httpConnection)
+    {
+        $httpConnection->send(
+            respond_json([
+                'tcp_connections' => collect($this->connectionManager->getConnections())
+                    ->filter(function ($connection) {
+                        return get_class($connection) === TcpControlConnection::class;
+                    })
+                    ->map(function ($site, $siteId) {
+                        $site = $site->toArray();
+                        $site['id'] = $siteId;
+
+                        return $site;
+                    })
+                    ->values(),
+            ])
+        );
+    }
+}

app/Server/Http/Controllers/Admin/GetUserDetailsController.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Server\Http\Controllers\Admin;
+
+use App\Contracts\UserRepository;
+use Illuminate\Http\Request;
+use Ratchet\ConnectionInterface;
+
+class GetUserDetailsController extends AdminController
+{
+    protected $keepConnectionOpen = true;
+
+    /** @var UserRepository */
+    protected $userRepository;
+
+    public function __construct(UserRepository $userRepository)
+    {
+        $this->userRepository = $userRepository;
+    }
+
+    public function handle(Request $request, ConnectionInterface $httpConnection)
+    {
+        $this->userRepository
+            ->getUserById($request->get('id'))
+            ->then(function ($user) use ($httpConnection) {
+                $httpConnection->send(
+                    respond_json(['user' => $user])
+                );
+
+                $httpConnection->close();
+            });
+    }
+}

app/Server/Http/Controllers/Admin/ListSitesController.php

@@ -4,6 +4,7 @@ namespace App\Server\Http\Controllers\Admin;
 
 use App\Contracts\ConnectionManager;
 use App\Server\Configuration;
+use App\Server\Connections\ControlConnection;
 use Illuminate\Http\Request;
 use Ratchet\ConnectionInterface;
 
@@ -25,12 +26,17 @@ class ListSitesController extends AdminController
         $sites = $this->getView($httpConnection, 'server.sites.index', [
             'scheme' => $this->configuration->port() === 443 ? 'https' : 'http',
             'configuration' => $this->configuration,
-            'sites' => collect($this->connectionManager->getConnections())->map(function ($site, $siteId) {
-                $site = $site->toArray();
-                $site['id'] = $siteId;
+            'sites' => collect($this->connectionManager->getConnections())
+                ->filter(function ($connection) {
+                    return get_class($connection) === ControlConnection::class;
+                })
+                ->map(function ($site, $siteId) {
+                    $site = $site->toArray();
+                    $site['id'] = $siteId;
 
-                return $site;
-            })->values(),
+                    return $site;
+                })
+                ->values(),
         ]);
 
         $httpConnection->send(

app/Server/Http/Controllers/Admin/ListTcpConnectionsController.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace App\Server\Http\Controllers\Admin;
+
+use App\Contracts\ConnectionManager;
+use App\Server\Configuration;
+use App\Server\Connections\TcpControlConnection;
+use Illuminate\Http\Request;
+use Ratchet\ConnectionInterface;
+
+class ListTcpConnectionsController extends AdminController
+{
+    /** @var ConnectionManager */
+    protected $connectionManager;
+    /** @var Configuration */
+    protected $configuration;
+
+    public function __construct(ConnectionManager $connectionManager, Configuration $configuration)
+    {
+        $this->connectionManager = $connectionManager;
+        $this->configuration = $configuration;
+    }
+
+    public function handle(Request $request, ConnectionInterface $httpConnection)
+    {
+        $sites = $this->getView($httpConnection, 'server.tcp.index', [
+            'scheme' => $this->configuration->port() === 443 ? 'https' : 'http',
+            'configuration' => $this->configuration,
+            'connections' => collect($this->connectionManager->getConnections())
+                ->filter(function ($connection) {
+                    return get_class($connection) === TcpControlConnection::class;
+                })
+                ->map(function ($connection, $connectionId) {
+                    $connection = $connection->toArray();
+                    $connection['id'] = $connectionId;
+
+                    return $connection;
+                })
+                ->values(),
+        ]);
+
+        $httpConnection->send(
+            respond_html($sites)
+        );
+    }
+}

app/Server/Http/Controllers/Admin/StoreUsersController.php

@@ -39,6 +39,8 @@ class StoreUsersController extends AdminController
         $insertData = [
             'name' => $request->get('name'),
             'auth_token' => (string) Str::uuid(),
+            'can_specify_subdomains' => (int) $request->get('can_specify_subdomains'),
+            'can_share_tcp_ports' => (int) $request->get('can_share_tcp_ports'),
         ];
 
         $this->userRepository

app/Server/Http/Controllers/ControlMessageController.php

@@ -5,10 +5,10 @@ namespace App\Server\Http\Controllers;
 use App\Contracts\ConnectionManager;
 use App\Contracts\UserRepository;
 use App\Http\QueryParameters;
+use App\Server\Exceptions\NoFreePortAvailable;
 use Ratchet\ConnectionInterface;
 use Ratchet\WebSocket\MessageComponentInterface;
 use React\Promise\Deferred;
-use React\Promise\FulfilledPromise;
 use React\Promise\PromiseInterface;
 use stdClass;
 
@@ -54,6 +54,10 @@ class ControlMessageController implements MessageComponentInterface
         if (isset($connection->request_id)) {
             return $this->sendResponseToHttpConnection($connection->request_id, $msg);
         }
+        if (isset($connection->tcp_request_id)) {
+            $connectionInfo = $this->connectionManager->findControlConnectionForClientId($connection->tcp_client_id);
+            $connectionInfo->proxyConnection->write($msg);
+        }
 
         try {
             $payload = json_decode($msg);
@@ -77,23 +81,12 @@ class ControlMessageController implements MessageComponentInterface
     protected function authenticate(ConnectionInterface $connection, $data)
     {
         $this->verifyAuthToken($connection)
-            ->then(function () use ($connection, $data) {
-                if (! $this->hasValidSubdomain($connection, $data->subdomain)) {
-                    return;
+            ->then(function ($user) use ($connection, $data) {
+                if ($data->type === 'http') {
+                    $this->handleHttpConnection($connection, $data, $user);
+                } elseif ($data->type === 'tcp') {
+                    $this->handleTcpConnection($connection, $data, $user);
                 }
-
-                $connectionInfo = $this->connectionManager->storeConnection($data->host, $data->subdomain, $connection);
-
-                $this->connectionManager->limitConnectionLength($connectionInfo, config('expose.admin.maximum_connection_length'));
-
-                $connection->send(json_encode([
-                    'event' => 'authenticated',
-                    'data' => [
-                        'message' => config('expose.admin.messages.message_of_the_day'),
-                        'subdomain' => $connectionInfo->subdomain,
-                        'client_id' => $connectionInfo->client_id,
-                    ],
-                ]));
             }, function () use ($connection) {
                 $connection->send(json_encode([
                     'event' => 'authenticationFailed',
@@ -105,6 +98,57 @@ class ControlMessageController implements MessageComponentInterface
             });
     }
 
+    protected function handleHttpConnection(ConnectionInterface $connection, $data, $user = null)
+    {
+        if (! $this->hasValidSubdomain($connection, $data->subdomain, $user)) {
+            return;
+        }
+
+        $connectionInfo = $this->connectionManager->storeConnection($data->host, $data->subdomain, $connection);
+
+        $this->connectionManager->limitConnectionLength($connectionInfo, config('expose.admin.maximum_connection_length'));
+
+        $connection->send(json_encode([
+            'event' => 'authenticated',
+            'data' => [
+                'message' => config('expose.admin.messages.message_of_the_day'),
+                'subdomain' => $connectionInfo->subdomain,
+                'client_id' => $connectionInfo->client_id,
+            ],
+        ]));
+    }
+
+    protected function handleTcpConnection(ConnectionInterface $connection, $data, $user = null)
+    {
+        if (! $this->canShareTcpPorts($connection, $data, $user)) {
+            return;
+        }
+
+        try {
+            $connectionInfo = $this->connectionManager->storeTcpConnection($data->port, $connection);
+        } catch (NoFreePortAvailable $exception) {
+            $connection->send(json_encode([
+                'event' => 'authenticationFailed',
+                'data' => [
+                    'message' => config('expose.admin.messages.no_free_tcp_port_available'),
+                ],
+            ]));
+            $connection->close();
+
+            return;
+        }
+
+        $connection->send(json_encode([
+            'event' => 'authenticated',
+            'data' => [
+                'message' => config('expose.admin.messages.message_of_the_day'),
+                'port' => $connectionInfo->port,
+                'shared_port' => $connectionInfo->shared_port,
+                'client_id' => $connectionInfo->client_id,
+            ],
+        ]));
+    }
+
     protected function registerProxy(ConnectionInterface $connection, $data)
     {
         $connection->request_id = $data->request_id;
@@ -116,6 +160,18 @@ class ControlMessageController implements MessageComponentInterface
         ]);
     }
 
+    protected function registerTcpProxy(ConnectionInterface $connection, $data)
+    {
+        $connection->tcp_client_id = $data->client_id;
+        $connection->tcp_request_id = $data->tcp_request_id;
+
+        $connectionInfo = $this->connectionManager->findControlConnectionForClientId($data->client_id);
+
+        $connectionInfo->emit('tcp_proxy_ready_'.$data->tcp_request_id, [
+            $connection,
+        ]);
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -127,7 +183,7 @@ class ControlMessageController implements MessageComponentInterface
     protected function verifyAuthToken(ConnectionInterface $connection): PromiseInterface
     {
         if (config('expose.admin.validate_auth_tokens') !== true) {
-            return new FulfilledPromise();
+            return \React\Promise\resolve(null);
         }
 
         $deferred = new Deferred();
@@ -147,8 +203,20 @@ class ControlMessageController implements MessageComponentInterface
         return $deferred->promise();
     }
 
-    protected function hasValidSubdomain(ConnectionInterface $connection, ?string $subdomain): bool
+    protected function hasValidSubdomain(ConnectionInterface $connection, ?string $subdomain, ?array $user): bool
     {
+        if (! is_null($user) && $user['can_specify_subdomains'] === 0 && ! is_null($subdomain)) {
+            $connection->send(json_encode([
+                'event' => 'subdomainTaken',
+                'data' => [
+                    'message' => config('expose.admin.messages.custom_subdomain_unauthorized'),
+                ],
+            ]));
+            $connection->close();
+
+            return false;
+        }
+
         if (! is_null($subdomain)) {
             $controlConnection = $this->connectionManager->findControlConnectionForSubdomain($subdomain);
             if (! is_null($controlConnection) || $subdomain === config('expose.admin.subdomain')) {
@@ -169,4 +237,21 @@ class ControlMessageController implements MessageComponentInterface
 
         return true;
     }
+
+    protected function canShareTcpPorts(ConnectionInterface $connection, $data, $user)
+    {
+        if (! is_null($user) && $user['can_share_tcp_ports'] === 0) {
+            $connection->send(json_encode([
+                'event' => 'authenticationFailed',
+                'data' => [
+                    'message' => config('expose.admin.messages.custom_subdomain_unauthorized'),
+                ],
+            ]));
+            $connection->close();
+
+            return false;
+        }
+
+        return true;
+    }
 }

app/Server/UserRepository/DatabaseUserRepository.php

@@ -2,6 +2,7 @@
 
 namespace App\Server\UserRepository;
 
+use App\Contracts\ConnectionManager;
 use App\Contracts\UserRepository;
 use Clue\React\SQLite\DatabaseInterface;
 use Clue\React\SQLite\Result;
@@ -13,9 +14,13 @@ class DatabaseUserRepository implements UserRepository
     /** @var DatabaseInterface */
     protected $database;
 
-    public function __construct(DatabaseInterface $database)
+    /** @var ConnectionManager */
+    protected $connectionManager;
+
+    public function __construct(DatabaseInterface $database, ConnectionManager $connectionManager)
     {
         $this->database = $database;
+        $this->connectionManager = $connectionManager;
     }
 
     public function getUsers(): PromiseInterface
@@ -46,8 +51,12 @@ class DatabaseUserRepository implements UserRepository
                     $nextPage = $currentPage + 1;
                 }
 
+                $users = collect($result->rows)->map(function ($user) {
+                    return $this->getUserDetails($user);
+                })->toArray();
+
                 $paginated = [
-                    'users' => $result->rows,
+                    'users' => $users,
                     'current_page' => $currentPage,
                     'per_page' => $perPage,
                     'next_page' => $nextPage ?? null,
@@ -60,6 +69,14 @@ class DatabaseUserRepository implements UserRepository
         return $deferred->promise();
     }
 
+    protected function getUserDetails(array $user)
+    {
+        $user['sites'] = $user['auth_token'] !== '' ? $this->connectionManager->getConnectionsForAuthToken($user['auth_token']) : [];
+        $user['tcp_connections'] = $user['auth_token'] !== '' ? $this->connectionManager->getTcpConnectionsForAuthToken($user['auth_token']) : [];
+
+        return $user;
+    }
+
     public function getUserById($id): PromiseInterface
     {
         $deferred = new Deferred();
@@ -67,7 +84,13 @@ class DatabaseUserRepository implements UserRepository
         $this->database
             ->query('SELECT * FROM users WHERE id = :id', ['id' => $id])
             ->then(function (Result $result) use ($deferred) {
-                $deferred->resolve($result->rows[0] ?? null);
+                $user = $result->rows[0] ?? null;
+
+                if (! is_null($user)) {
+                    $user = $this->getUserDetails($user);
+                }
+
+                $deferred->resolve($user);
             });
 
         return $deferred->promise();
@@ -91,8 +114,8 @@ class DatabaseUserRepository implements UserRepository
         $deferred = new Deferred();
 
         $this->database->query("
-            INSERT INTO users (name, auth_token, created_at)
-            VALUES (:name, :auth_token, DATETIME('now'))
+            INSERT INTO users (name, auth_token, can_specify_subdomains, can_share_tcp_ports, created_at)
+            VALUES (:name, :auth_token, :can_specify_subdomains, :can_share_tcp_ports, DATETIME('now'))
         ", $data)
             ->then(function (Result $result) use ($deferred) {
                 $this->database->query('SELECT * FROM users WHERE id = :id', ['id' => $result->insertId])

composer.json

@@ -17,8 +17,7 @@
     ],
     "require": {
         "php": "^7.3.0",
-        "ext-json": "*",
-        "padraic/phar-updater": "^1.0.6"
+        "ext-json": "*"
     },
     "require-dev": {
         "cboden/ratchet": "^0.4.2",
@@ -39,7 +38,7 @@
         "phpunit/phpunit": "^8.5",
         "ratchet/pawl": "^0.3.4",
         "react/http": "^0.8.6",
-        "react/socket": "dev-master as 1.1",
+        "react/socket": "^1.6",
         "react/stream": "^1.1.1",
         "riverline/multipart-parser": "^2.0",
         "symfony/expression-language": "^5.0",

config/expose.php

@@ -151,6 +151,24 @@ return [
         */
         'validate_auth_tokens' => false,
 
+        /*
+        |--------------------------------------------------------------------------
+        | TCP Port Range
+        |--------------------------------------------------------------------------
+        |
+        | Expose allows you to also share TCP ports, for example when sharing your
+        | local SSH server with the public. This setting allows you to define the
+        | port range that Expose will use to assign new ports to the users.
+        |
+        | Note: Do not use port ranges below 1024, as it might require root
+        | privileges to assign these ports.
+        |
+        */
+        'tcp_port_range' => [
+            'from' => 50000,
+            'to' => 60000,
+        ],
+
         /*
         |--------------------------------------------------------------------------
         | Maximum connection length
@@ -230,6 +248,10 @@ return [
             'invalid_auth_token' => 'Authentication failed. Please check your authentication token and try again.',
 
             'subdomain_taken' => 'The chosen subdomain :subdomain is already taken. Please choose a different subdomain.',
+
+            'custom_subdomain_unauthorized' => 'You are not allowed to specify custom subdomains. Please upgrade to Expose Pro.',
+
+            'no_free_tcp_port_available' => 'There are no free TCP ports available on this server. Please try again later.',
         ],
     ],
 ];

database/migrations/02_add_feature_flags_to_users_table.sql

@@ -0,0 +1 @@
+ALTER TABLE users ADD can_specify_subdomains BOOLEAN DEFAULT 1;

database/migrations/03_add_tcp_sharing_flag_to_users_table.sql

@@ -0,0 +1 @@
+ALTER TABLE users ADD can_share_tcp_ports BOOLEAN DEFAULT 1;

docs/server/ssl.md

@@ -7,7 +7,9 @@ order: 2
 
 Once your Expose server is running, you can only access it over the port that you configure when the server gets started.
 
-If you want to enable SSL support, you will need to use a proxy service - like Nginx, HAProxy or Caddy - to handle the SSL configurations and proxy all non-SSL requests to your expose server.
+If you want to enable SSL support, you will need to use a proxy service - like Nginx, HAProxy, Apache2 or Caddy - to handle the SSL configurations and proxy all non-SSL requests to your expose server.
+
+## Nginx configuration
 
 A basic Nginx configuration would look like this, but you might want to tweak the SSL parameters to your liking.
 
@@ -40,3 +42,47 @@ server {
   }
 }
 ```
+
+## Apache2 configuration
+
+A basic Apache configuration would look like this, but you might want to tweak the SSL parameters to your liking.
+
+```
+Listen 80
+Listen 443
+
+<IfModule mod_ssl.c>
+<VirtualHost *:443>
+	ServerName expose.domain.tld
+	ServerAlias *.expose.domain.tld
+	LoadModule        proxy_module            modules/mod_proxy.so
+	LoadModule        proxy_http_module       modules/mod_proxy_http.so
+
+	ServerAdmin admin@domain.tld
+
+	ProxyPass "/" "http://localhost:8080/"
+	ProxyPassReverse "/" "http://localhost:8080/"
+	ProxyPreserveHost On
+	
+
+	# Needed for websocket support
+	RewriteCond %{HTTP:UPGRADE} ^WebSocket$ [NC,OR]
+	RewriteCond %{HTTP:CONNECTION} ^Upgrade$ [NC]
+	RewriteRule .* ws://127.0.0.1:8080%{REQUEST_URI} [P,QSA,L]
+
+	<Proxy http://localhost:8080>
+
+		Require all granted
+
+		Options none
+	</Proxy>
+
+	ErrorLog ${APACHE_LOG_DIR}/expose.domain.tld-error.log
+	CustomLog ${APACHE_LOG_DIR}/expose.domain.tld-access.log combined
+
+	SSLCertificateFile /etc/letsencrypt/live/expose.domain.tld-0001/fullchain.pem
+	SSLCertificateKeyFile /etc/letsencrypt/live/expose.domain.tld-0001/privkey.pem
+	Include /etc/letsencrypt/options-ssl-apache.conf
+</VirtualHost>
+</IfModule>
+```

resources/views/server/layouts/app.twig

@@ -27,6 +27,12 @@
                            ml-8 inline-flex items-center px-1 pt-1 border-b-2 text-sm font-medium leading-5 focus:outline-none transition duration-150 ease-in-out">
                             Shared sites
                         </a>
+                        <a href="/tcp"
+                           class="
+                           {% if request.is('tcp') %} border-indigo-500 focus:border-indigo-700 text-gray-900 {% else %} border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300 focus:text-gray-700 focus:border-gray-300{% endif %}
+                           ml-8 inline-flex items-center px-1 pt-1 border-b-2 text-sm font-medium leading-5 focus:outline-none transition duration-150 ease-in-out">
+                            TCP connections
+                        </a>
                         <a href="/settings"
                            class="
                            {% if request.is('settings') %} border-indigo-500 focus:border-indigo-700 text-gray-900 {% else %} border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300 focus:text-gray-700 focus:border-gray-300{% endif %}

resources/views/server/tcp/index.twig

@@ -0,0 +1,73 @@
+{% extends "app" %}
+{% block title %}TCP Connections{% endblock %}
+{% block content %}
+    <div class="flex flex-col py-8">
+        <div class="-my-2 py-2 overflow-x-auto sm:-mx-6 sm:px-6 lg:-mx-8 lg:px-8">
+            <div
+                class="align-middle inline-block min-w-full shadow overflow-hidden sm:rounded-lg border-b border-gray-200">
+                <table class="min-w-full" v-if="connections.length > 0">
+                    <thead>
+                    <tr>
+                        <th class="px-6 py-3 border-b border-gray-200 bg-gray-50 text-left text-xs leading-4 font-medium text-gray-500 uppercase tracking-wider">
+                            Local Port
+                        </th>
+                        <th class="px-6 py-3 border-b border-gray-200 bg-gray-50 text-left text-xs leading-4 font-medium text-gray-500 uppercase tracking-wider">
+                            Expose Port
+                        </th>
+                        <th class="px-6 py-3 border-b border-gray-200 bg-gray-50 text-left text-xs leading-4 font-medium text-gray-500 uppercase tracking-wider">
+                            Shared At
+                        </th>
+                        <th class="px-6 py-3 border-b border-gray-200 bg-gray-50"></th>
+                    </tr>
+                    </thead>
+                    <tbody class="bg-white">
+                        <tr v-for="connection in connections">
+                            <td class="px-6 py-4 whitespace-no-wrap border-b border-gray-200 text-sm leading-5 font-medium text-gray-900">
+                                @{ connection.port }
+                            </td>
+                            <td class="px-6 py-4 whitespace-no-wrap border-b border-gray-200 text-sm leading-5 text-gray-500">
+                                @{ connection.shared_port }
+                            </td>
+                            <td class="px-6 py-4 whitespace-no-wrap border-b border-gray-200 text-sm leading-5 text-gray-500">
+                                @{ connection.shared_at }
+                            </td>
+                            <td class="px-6 py-4 whitespace-no-wrap text-right border-b border-gray-200 text-sm leading-5 font-medium">
+                                <a href="#"
+                                   @click.prevent="disconnectConnection(connection.client_id)"
+                                   class="pl-2 text-red-600 hover:text-red-900">Disconnect</a>
+                            </td>
+                        </tr>
+                    </tbody>
+                </table>
+                <div class="flex items-center justify-center text-gray-900 p-4" v-else>
+                    <span class="text-xl">There are no TCP connections shared with this server yet.</span>
+                </div>
+            </div>
+        </div>
+    </div>
+{% endblock %}
+{% block scripts %}
+    <script>
+        new Vue({
+            el: '#app',
+
+            delimiters: ['@{', '}'],
+
+            data: {
+                connections: {{ connections|json_encode|raw }}
+            },
+
+            methods: {
+                disconnectConnection(id) {
+                    fetch('/api/tcp/' + id, {
+                        method: 'DELETE',
+                    }).then((response) => {
+                        return response.json();
+                    }).then((data) => {
+                        this.connections = data.connections;
+                    });
+                }
+            }
+        })
+    </script>
+{% endblock %}

resources/views/server/users/index.twig

@@ -24,6 +24,44 @@
                             </div>
                         </div>
                     </div>
+                    <div class="sm:grid sm:grid-cols-3 sm:gap-4 sm:items-start sm:pt-5">
+                        <label for="can_specify_subdomains"
+                               class="block text-sm font-medium leading-5 text-gray-700 sm:mt-px sm:pt-2">
+                            Can specify custom subdomains
+                        </label>
+                        <div class="mt-1 sm:mt-0 sm:col-span-2">
+                            <div class="mt-2 flex items-center justify-between">
+                                <div class="flex items-center">
+                                    <input id="can_specify_subdomains"
+                                           v-model="userForm.can_specify_subdomains"
+                                           name="can_specify_subdomains"
+                                           value="1" type="checkbox" class="form-checkbox h-4 w-4 text-indigo-600 transition duration-150 ease-in-out" />
+                                    <label for="can_specify_subdomains" class="ml-2 block text-sm leading-5 text-gray-900">
+                                        Yes
+                                    </label>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="sm:grid sm:grid-cols-3 sm:gap-4 sm:items-start sm:pt-5">
+                        <label for="can_share_tcp_ports"
+                               class="block text-sm font-medium leading-5 text-gray-700 sm:mt-px sm:pt-2">
+                            Can share TCP ports
+                        </label>
+                        <div class="mt-1 sm:mt-0 sm:col-span-2">
+                            <div class="mt-2 flex items-center justify-between">
+                                <div class="flex items-center">
+                                    <input id="can_share_tcp_ports"
+                                           v-model="userForm.can_share_tcp_ports"
+                                           name="can_share_tcp_ports"
+                                           value="1" type="checkbox" class="form-checkbox h-4 w-4 text-indigo-600 transition duration-150 ease-in-out" />
+                                    <label for="can_share_tcp_ports" class="ml-2 block text-sm leading-5 text-gray-900">
+                                        Yes
+                                    </label>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
                 </div>
                 <div class="mt-8 border-t border-gray-200 pt-5">
                     <div class="flex justify-end">
@@ -51,6 +89,12 @@
                     <th class="px-6 py-3 border-b border-gray-200 bg-gray-50 text-left text-xs leading-4 font-medium text-gray-500 uppercase tracking-wider">
                         Auth-Token
                     </th>
+                    <th class="px-6 py-3 border-b border-gray-200 bg-gray-50 text-left text-xs leading-4 font-medium text-gray-500 uppercase tracking-wider">
+                        Custom Subdomains
+                    </th>
+                    <th class="px-6 py-3 border-b border-gray-200 bg-gray-50 text-left text-xs leading-4 font-medium text-gray-500 uppercase tracking-wider">
+                        TCP ports
+                    </th>
                     <th class="px-6 py-3 border-b border-gray-200 bg-gray-50 text-left text-xs leading-4 font-medium text-gray-500 uppercase tracking-wider">
                         Created At
                     </th>
@@ -65,6 +109,22 @@
                     <td class="px-6 py-4 whitespace-no-wrap border-b border-gray-200 text-sm leading-5 text-gray-500">
                         @{ user.auth_token }
                     </td>
+                    <td class="px-6 py-4 whitespace-no-wrap border-b border-gray-200 text-sm leading-5 text-gray-500">
+                        <span v-if="user.can_specify_subdomains === 0">
+                            No
+                        </span>
+                        <span v-else>
+                            Yes
+                        </span>
+                    </td>
+                    <td class="px-6 py-4 whitespace-no-wrap border-b border-gray-200 text-sm leading-5 text-gray-500">
+                        <span v-if="user.can_share_tcp_ports === 0">
+                            No
+                        </span>
+                        <span v-else>
+                            Yes
+                        </span>
+                    </td>
                     <td class="px-6 py-4 whitespace-no-wrap border-b border-gray-200 text-sm leading-5 text-gray-500">
                         @{ user.created_at }
                     </td>
@@ -113,6 +173,8 @@
                 data: {
                     userForm: {
                         name: '',
+                        can_specify_subdomains: true,
+                        can_share_tcp_ports: true,
                         errors: {},
                     },
                     paginated: {{ paginated|json_encode|raw }}
@@ -140,7 +202,7 @@
                         }).then((response) => {
                             return response.json();
                         }).then((data) => {
-                            this.users = this.users.filter(u => u.id !== user.id);
+                            this.getUsers(1)
                         });
                     },
                     saveUser() {
@@ -155,6 +217,8 @@
                         }).then((data) => {
                             if (data.user) {
                                 this.userForm.name = '';
+                                this.userForm.can_specify_subdomains = true;
+                                this.userForm.can_share_tcp_ports = true;
                                 this.userForm.errors = {};
                                 this.users.unshift(data.user);
                             }

tests/Feature/Server/AdminTest.php

@@ -8,6 +8,7 @@ use Clue\React\Buzz\Browser;
 use Clue\React\Buzz\Message\ResponseException;
 use GuzzleHttp\Psr7\Response;
 use Illuminate\Support\Str;
+use Nyholm\Psr7\Request;
 use Psr\Http\Message\ResponseInterface;
 use Ratchet\Server\IoConnection;
 use Tests\Feature\TestCase;
@@ -149,6 +150,8 @@ class AdminTest extends TestCase
         $connectionManager = app(ConnectionManager::class);
 
         $connection = \Mockery::mock(IoConnection::class);
+        $connection->httpRequest = new Request('GET', '/?authToken=some-token');
+
         $connectionManager->storeConnection('some-host.text', 'fixed-subdomain', $connection);
 
         /** @var Response $response */

tests/Feature/Server/ApiTest.php

@@ -0,0 +1,207 @@
+<?php
+
+namespace Tests\Feature\Server;
+
+use App\Contracts\ConnectionManager;
+use App\Server\Factory;
+use Clue\React\Buzz\Browser;
+use GuzzleHttp\Psr7\Response;
+use Nyholm\Psr7\Request;
+use Ratchet\Server\IoConnection;
+use Tests\Feature\TestCase;
+
+class ApiTest extends TestCase
+{
+    /** @var Browser */
+    protected $browser;
+
+    /** @var Factory */
+    protected $serverFactory;
+
+    public function setUp(): void
+    {
+        parent::setUp();
+
+        $this->browser = new Browser($this->loop);
+        $this->browser = $this->browser->withOptions([
+            'followRedirects' => false,
+        ]);
+
+        $this->startServer();
+    }
+
+    public function tearDown(): void
+    {
+        $this->serverFactory->getSocket()->close();
+
+        parent::tearDown();
+    }
+
+    /** @test */
+    public function it_can_list_all_registered_users()
+    {
+        /** @var Response $response */
+        $this->await($this->browser->post('http://127.0.0.1:8080/api/users', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ], json_encode([
+            'name' => 'Marcel',
+        ])));
+
+        /** @var Response $response */
+        $response = $this->await($this->browser->get('http://127.0.0.1:8080/api/users', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ]));
+
+        $body = json_decode($response->getBody()->getContents());
+        $users = $body->paginated->users;
+
+        $this->assertCount(1, $users);
+        $this->assertSame('Marcel', $users[0]->name);
+        $this->assertSame([], $users[0]->sites);
+    }
+
+    /** @test */
+    public function it_can_get_user_details()
+    {
+        /** @var Response $response */
+        $this->await($this->browser->post('http://127.0.0.1:8080/api/users', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ], json_encode([
+            'name' => 'Marcel',
+        ])));
+
+        /** @var Response $response */
+        $response = $this->await($this->browser->get('http://127.0.0.1:8080/api/users/1', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ]));
+
+        $body = json_decode($response->getBody()->getContents());
+        $user = $body->user;
+
+        $this->assertSame('Marcel', $user->name);
+        $this->assertSame([], $user->sites);
+        $this->assertSame([], $user->tcp_connections);
+    }
+
+    /** @test */
+    public function it_can_list_all_currently_connected_sites_from_all_users()
+    {
+        /** @var Response $response */
+        $response = $this->await($this->browser->post('http://127.0.0.1:8080/api/users', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ], json_encode([
+            'name' => 'Marcel',
+        ])));
+
+        $createdUser = json_decode($response->getBody()->getContents())->user;
+
+        /** @var ConnectionManager $connectionManager */
+        $connectionManager = app(ConnectionManager::class);
+
+        $connection = \Mockery::mock(IoConnection::class);
+        $connection->httpRequest = new Request('GET', '/?authToken='.$createdUser->auth_token);
+        $connectionManager->storeConnection('some-host.test', 'fixed-subdomain', $connection);
+
+        $connection = \Mockery::mock(IoConnection::class);
+        $connection->httpRequest = new Request('GET', '/?authToken=some-other-token');
+        $connectionManager->storeConnection('some-different-host.test', 'different-subdomain', $connection);
+
+        $connection = \Mockery::mock(IoConnection::class);
+        $connection->httpRequest = new Request('GET', '/?authToken='.$createdUser->auth_token);
+        $connectionManager->storeTcpConnection(2525, $connection);
+
+        /** @var Response $response */
+        $response = $this->await($this->browser->get('http://127.0.0.1:8080/api/users', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ]));
+
+        $body = json_decode($response->getBody()->getContents());
+        $users = $body->paginated->users;
+
+        $this->assertCount(1, $users[0]->sites);
+        $this->assertCount(1, $users[0]->tcp_connections);
+        $this->assertSame('some-host.test', $users[0]->sites[0]->host);
+        $this->assertSame('fixed-subdomain', $users[0]->sites[0]->subdomain);
+    }
+
+    /** @test */
+    public function it_can_list_all_currently_connected_sites()
+    {
+        /** @var ConnectionManager $connectionManager */
+        $connectionManager = app(ConnectionManager::class);
+
+        $connection = \Mockery::mock(IoConnection::class);
+        $connection->httpRequest = new Request('GET', '/?authToken=some-token');
+
+        $connectionManager->storeConnection('some-host.test', 'fixed-subdomain', $connection);
+
+        /** @var Response $response */
+        $response = $this->await($this->browser->get('http://127.0.0.1:8080/api/sites', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ]));
+
+        $body = json_decode($response->getBody()->getContents());
+        $sites = $body->sites;
+
+        $this->assertCount(1, $sites);
+        $this->assertSame('some-host.test', $sites[0]->host);
+        $this->assertSame('some-token', $sites[0]->auth_token);
+        $this->assertSame('fixed-subdomain', $sites[0]->subdomain);
+    }
+
+    /** @test */
+    public function it_can_list_all_currently_connected_sites_without_auth_tokens()
+    {
+        /** @var ConnectionManager $connectionManager */
+        $connectionManager = app(ConnectionManager::class);
+
+        $connection = \Mockery::mock(IoConnection::class);
+        $connection->httpRequest = new Request('GET', '/');
+
+        $connectionManager->storeConnection('some-host.test', 'fixed-subdomain', $connection);
+
+        /** @var Response $response */
+        $response = $this->await($this->browser->get('http://127.0.0.1:8080/api/sites', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ]));
+
+        $body = json_decode($response->getBody()->getContents());
+        $sites = $body->sites;
+
+        $this->assertCount(1, $sites);
+        $this->assertSame('some-host.test', $sites[0]->host);
+        $this->assertSame('', $sites[0]->auth_token);
+        $this->assertSame('fixed-subdomain', $sites[0]->subdomain);
+    }
+
+    protected function startServer()
+    {
+        $this->app['config']['expose.admin.subdomain'] = 'expose';
+        $this->app['config']['expose.admin.database'] = ':memory:';
+
+        $this->app['config']['expose.admin.users'] = [
+            'username' => 'secret',
+        ];
+
+        $this->serverFactory = new Factory();
+
+        $this->serverFactory->setLoop($this->loop)
+            ->createServer();
+    }
+}

tests/Feature/Server/TunnelTest.php

@@ -9,6 +9,7 @@ use Clue\React\Buzz\Message\ResponseException;
 use GuzzleHttp\Psr7\Response;
 use Psr\Http\Message\ServerRequestInterface;
 use React\Http\Server;
+use React\Socket\Connection;
 use Tests\Feature\TestCase;
 
 class TunnelTest extends TestCase
@@ -22,11 +23,17 @@ class TunnelTest extends TestCase
     /** @var \React\Socket\Server */
     protected $testHttpServer;
 
+    /** @var \React\Socket\Server */
+    protected $testTcpServer;
+
     public function setUp(): void
     {
         parent::setUp();
 
         $this->browser = new Browser($this->loop);
+        $this->browser = $this->browser->withOptions([
+            'followRedirects' => false,
+        ]);
 
         $this->startServer();
     }
@@ -39,6 +46,10 @@ class TunnelTest extends TestCase
             $this->testHttpServer->close();
         }
 
+        if (isset($this->testTcpServer)) {
+            $this->testTcpServer->close();
+        }
+
         parent::tearDown();
     }
 
@@ -58,6 +69,8 @@ class TunnelTest extends TestCase
     {
         $this->createTestHttpServer();
 
+        $this->app['config']['expose.admin.validate_auth_tokens'] = false;
+
         /**
          * We create an expose client that connects to our server and shares
          * the created test HTTP server.
@@ -76,6 +89,93 @@ class TunnelTest extends TestCase
         $this->assertSame('Hello World!', $response->getBody()->getContents());
     }
 
+    /** @test */
+    public function it_sends_incoming_requests_to_the_connected_client_via_tcp()
+    {
+        $this->createTestTcpServer();
+
+        $this->app['config']['expose.admin.validate_auth_tokens'] = false;
+
+        /**
+         * We create an expose client that connects to our server and shares
+         * the created test HTTP server.
+         */
+        $client = $this->createClient();
+        $response = $this->await($client->connectToServerAndShareTcp(8085));
+
+        /**
+         * Once the client is connected, we connect to the
+         * created tunnel.
+         */
+        $connector = new \React\Socket\Connector($this->loop);
+        $connection = $this->await($connector->connect('127.0.0.1:'.$response->shared_port));
+
+        $this->assertInstanceOf(Connection::class, $connection);
+    }
+
+    /** @test */
+    public function it_rejects_tcp_sharing_if_forbidden()
+    {
+        $this->createTestTcpServer();
+
+        $this->app['config']['expose.admin.validate_auth_tokens'] = true;
+
+        $response = $this->await($this->browser->post('http://127.0.0.1:8080/api/users', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ], json_encode([
+            'name' => 'Marcel',
+            'can_share_tcp_ports' => 0,
+        ])));
+
+        $user = json_decode($response->getBody()->getContents())->user;
+
+        $this->expectException(\UnexpectedValueException::class);
+
+        /**
+         * We create an expose client that connects to our server and shares
+         * the created test HTTP server.
+         */
+        $client = $this->createClient();
+        $this->await($client->connectToServerAndShareTcp(8085, $user->auth_token));
+    }
+
+    /** @test */
+    public function it_allows_tcp_sharing_if_enabled_for_user()
+    {
+        $this->createTestTcpServer();
+
+        $this->app['config']['expose.admin.validate_auth_tokens'] = true;
+
+        $response = $this->await($this->browser->post('http://127.0.0.1:8080/api/users', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ], json_encode([
+            'name' => 'Marcel',
+            'can_share_tcp_ports' => 1,
+        ])));
+
+        $user = json_decode($response->getBody()->getContents())->user;
+
+        /**
+         * We create an expose client that connects to our server and shares
+         * the created test HTTP server.
+         */
+        $client = $this->createClient();
+        $response = $this->await($client->connectToServerAndShareTcp(8085, $user->auth_token));
+
+        /**
+         * Once the client is connected, we connect to the
+         * created tunnel.
+         */
+        $connector = new \React\Socket\Connector($this->loop);
+        $connection = $this->await($connector->connect('127.0.0.1:'.$response->shared_port));
+
+        $this->assertInstanceOf(Connection::class, $connection);
+    }
+
     /** @test */
     public function it_rejects_clients_with_invalid_auth_tokens()
     {
@@ -98,22 +198,96 @@ class TunnelTest extends TestCase
     {
         $this->app['config']['expose.admin.validate_auth_tokens'] = true;
 
-        $this->createTestHttpServer();
+        $response = $this->await($this->browser->post('http://127.0.0.1:8080/api/users', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ], json_encode([
+            'name' => 'Marcel',
+            'can_specify_subdomains' => 1,
+        ])));
 
-        $this->expectException(\UnexpectedValueException::class);
+        $user = json_decode($response->getBody()->getContents())->user;
+
+        $this->createTestHttpServer();
 
         /**
          * We create an expose client that connects to our server and shares
          * the created test HTTP server.
          */
         $client = $this->createClient();
-        $this->await($client->connectToServer('127.0.0.1:8085', 'tunnel'));
+        $response = $this->await($client->connectToServer('127.0.0.1:8085', 'tunnel', $user->auth_token));
+
+        $this->assertSame('tunnel', $response->subdomain);
+    }
+
+    /** @test */
+    public function it_rejects_clients_to_specify_custom_subdomains()
+    {
+        $this->app['config']['expose.admin.validate_auth_tokens'] = true;
+
+        $response = $this->await($this->browser->post('http://127.0.0.1:8080/api/users', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ], json_encode([
+            'name' => 'Marcel',
+            'can_specify_subdomains' => 0,
+        ])));
+
+        $this->expectException(\UnexpectedValueException::class);
+
+        $user = json_decode($response->getBody()->getContents())->user;
+
+        $this->createTestHttpServer();
+
+        /**
+         * We create an expose client that connects to our server and shares
+         * the created test HTTP server.
+         */
+        $client = $this->createClient();
+        $response = $this->await($client->connectToServer('127.0.0.1:8085', 'tunnel', $user->auth_token));
+
+        $this->assertSame('tunnel', $response->subdomain);
+    }
+
+    /** @test */
+    public function it_allows_clients_to_use_random_subdomains_if_custom_subdomains_are_forbidden()
+    {
+        $this->app['config']['expose.admin.validate_auth_tokens'] = true;
+
+        $response = $this->await($this->browser->post('http://127.0.0.1:8080/api/users', [
+            'Host' => 'expose.localhost',
+            'Authorization' => base64_encode('username:secret'),
+            'Content-Type' => 'application/json',
+        ], json_encode([
+            'name' => 'Marcel',
+            'can_specify_subdomains' => 0,
+        ])));
+
+        $user = json_decode($response->getBody()->getContents())->user;
+
+        $this->createTestHttpServer();
+
+        /**
+         * We create an expose client that connects to our server and shares
+         * the created test HTTP server.
+         */
+        $client = $this->createClient();
+        $response = $this->await($client->connectToServer('127.0.0.1:8085', '', $user->auth_token));
+
+        $this->assertInstanceOf(\stdClass::class, $response);
     }
 
     protected function startServer()
     {
+        $this->app['config']['expose.admin.subdomain'] = 'expose';
         $this->app['config']['expose.admin.database'] = ':memory:';
 
+        $this->app['config']['expose.admin.users'] = [
+            'username' => 'secret',
+        ];
+
         $this->serverFactory = new Factory();
 
         $this->serverFactory->setLoop($this->loop)
@@ -142,4 +316,15 @@ class TunnelTest extends TestCase
         $this->testHttpServer = new \React\Socket\Server(8085, $this->loop);
         $server->listen($this->testHttpServer);
     }
+
+    protected function createTestTcpServer()
+    {
+        $this->testTcpServer = new \React\Socket\Server(8085, $this->loop);
+
+        $this->testTcpServer->on('connection', function (\React\Socket\ConnectionInterface $connection) {
+            $connection->write('Hello '.$connection->getRemoteAddress()."!\n");
+
+            $connection->pipe($connection);
+        });
+    }
 }