add all supported regions

README.md

@@ -13,9 +13,17 @@ PHP 8 library for Half-Life API with native IPv6 / Yggdrasil support
 #### Master
 
 ```
-$master = new Yggverse\Hl\Xash3d\Master('hl.ygg', 27010);
+$master = new \Yggverse\Hl\Xash3D\Master('hl.ygg', 27010);
 
 var_dump(
   $master->getServersIPv6()
 );
+
+var_dump(
+    $master->getErrors()
+);
 ```
+
+## Projects
+
+* [HLState](https://github.com/YGGverse/HLState) - Web Monitor for Half-Life Servers

composer.json

@@ -1,6 +1,8 @@
 {
     "name": "yggverse/hl",
     "description": "PHP 8 library for Half-Life API with native IPv6 / Yggdrasil support ",
+    "keywords": [ "half-life", "hl", "xash3d", "ipv6", "yggdrasil", "master" ],
+    "homepage": "https://github.com/YGGverse/hl-php",
     "type": "library",
     "license": "MIT",
     "autoload": {

src/Xash3D/Master.php

@@ -2,66 +2,127 @@
 
 declare(strict_types=1);
 
-namespace Yggverse\Hl\Xash3d;
+namespace Yggverse\Hl\Xash3D;
+
+enum Family: int {
+    case IPv4 = 4;
+    case IPv6 = 16;
+}
+
+enum Region: string {
+    case USEastCoast  = "0x00";
+    case USWestCoast  = "0x01";
+    case SouthAmerica = "0x02";
+    case Europe       = "0x03";
+    case Asia         = "0x04";
+    case Australia    = "0x05";
+    case MiddleEast   = "0x06";
+    case Africa       = "0x07";
+    case World        = "0xff";
+}
+
+enum Game: string {
+    case Valve = "valve";
+}
 
 class Master
 {
-    private $_socket;
+    private string $_host;
+    private int    $_port;
+    private int    $_timeout;
+
+    private array  $_errors = [];
 
     public function __construct(
         string $host,
-        int    $port,
+        int    $port    = 27010,
         int    $timeout = 5
     )
     {
-        $this->_socket = fsockopen(
-            "udp://{$host}",
-            $port
-        );
-
-        stream_set_timeout(
-            $this->_socket,
-            $timeout
-        );
+        $this->_host    = $host;
+        $this->_port    = $port;
+        $this->_timeout = $timeout;
     }
 
-    public function __destruct()
+    private function _fclose(
+        mixed $socket
+    )
     {
-        if ($this->_socket)
+        if (true === is_resource($socket))
         {
             fclose(
-                $this->_socket
+                $socket
             );
         }
     }
 
-    public static function getServersIPv6(
+    // Legacy protocol implementation does not support mixed address families
+    // in the binary master socket response, use separated method for IPv4 servers.
+    public function getServers(
         int    $limit   = 100,
-        string $region  = "\xFF",
-        string $host    = "0.0.0.0:0",
+        string $host    = "0.0.0.0",
         int    $port    = 0,
-        string $gamedir = "valve"
+        Game   $game    = Game::Valve,
+        Region $region  = Region::World
     ): ?array
     {
+        $family = filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) ? Family::IPv4 : Family::IPv6;
+
+        // Init connection
+        $socket = fsockopen(
+            "udp://{$this->_host}",
+            $this->_port,
+            $code,
+            $message,
+            $this->_timeout
+        );
+
+        $master = "{$this->_host}:{$this->_port}";
+
         // Is connected
-        if (!$this->_socket)
+        if (true === is_resource($socket))
         {
+            stream_set_timeout(
+                $socket,
+                $this->_timeout
+            );
+        }
+
+        else
+        {
+            $this->_errors[] = sprintf(
+                _("Connection error for $master: %s"),
+                $message
+            );
+
+            $this->_fclose(
+                $socket
+            );
+
             return null;
         }
 
         // Filter query
-        if (!fwrite($this->_socket, "1{$region}{$host}:{$port}\0\gamedir\t{$gamedir}\0"))
+        if (false === fwrite($socket, "1{$region->value}{$host}:{$port}\0\\gamedir\\{$game->value}\0"))
         {
-            fclose(
-                $this->_socket
+            $this->_errors[] = _("Could not send socket query for $master");
+
+            $this->_fclose(
+                $socket
             );
 
             return null;
         }
 
         // Skip header
-        if (!fread($this->_socket, 6))
+        if (false === fread($socket, 6))
         {
+            $this->_errors[] = _("Could not init packet header for $master");
+
+            $this->_fclose(
+                $socket
+            );
+
             return null;
         }
 
@@ -70,56 +131,64 @@ class Master
 
         for ($i = 0; $i < $limit; $i++)
         {
-            // Get host
-            if (false === $host = fread($this->_socket, 16))
+            // Get host bytes
+            if (false === $host = fread($socket, $family->value))
             {
-                return null;
+                $this->_errors[] = _("Invalid `host` fragment in packet at $i for $master");
+                break;
             }
 
-            // Is end of packet
-            if (true === str_starts_with($host, 0))
+            // End of packet
+            if (true === str_ends_with(bin2hex($host), bin2hex("\0\0\0\0\0\0")))
             {
                 break;
             }
 
-            // Skip invalid host
+            // Get host string
             if (false === $host = inet_ntop($host))
             {
-                continue;
+                $this->_errors[] = _("Invalid `host` value in packet at $i for $master");
+                break;
             }
 
-            // Decode first byte for port
-            if (false === $byte1 = fread($this->_socket, 1))
+            // Get port bytes
+            if (false === $p = fread($socket, 2))
             {
-                return null;
+                $this->_errors[] = _("Invalid `port` fragment in packet at $i for $master");
+                break;
             }
 
-            // Decode second byte for port
-            if (false === $byte2 = fread($this->_socket, 1))
+            // Get port value
+            if (false === $p = unpack('nport', $p))
             {
-                return null;
+                $this->_errors[] = _("Invalid `port` value in packet at $i for $master");
+                break;
             }
 
-            // Calculate port value
-            $port = ord($byte1) * 256 + ord($byte2);
-
-            // Validate IPv6 result
-            if (
-                false !== strpos($host, '.') || // filter_var not always works with mixed IPv6
-                false === filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) ||
-                false === filter_var($port, FILTER_VALIDATE_INT)
-            )
+            // Validate result
+            if (false === filter_var($host, FILTER_VALIDATE_IP, $family == Family::IPv6 ? FILTER_FLAG_IPV6
+                                                                                        : FILTER_FLAG_IPV4) || empty($p['port']))
             {
-                continue;
+                $this->_errors[] = _("Invalid socket address in packet at $i for $master");
+                break;
             }
 
-            $servers["[{$host}]:{$port}"] = // keep unique
+            $servers["{$host}{$p['port']}"] = // keep unique
             [
                 'host' => $host,
-                'port' => $port
+                'port' => $p['port']
             ];
         }
 
+        $this->_fclose(
+            $socket
+        );
+
         return $servers;
     }
+
+    public function getErrors(): array
+    {
+        return $this->_errors;
+    }
 }