update host validation

src/public/socket.php

@@ -20,35 +20,54 @@ if (empty($_GET['port']) || !\Yggverse\Net\Socket::isPort($_GET['port']))
     );
 }
 
-// Valid host required to continue
-if (isset($_GET['host']) && !\Yggverse\Net\Socket::isHost($_GET['host']))
-{
-    exit(
-        json_encode(
-            [
-                'success' => false,
-                'message' => _('valid host required')
-            ]
-        )
-    );
-}
-
 // Set client address if optional host not provided
-if (empty($_GET['host']) && isset($_SERVER['REMOTE_ADDR']) && !\Yggverse\Net\Socket::isHost($_SERVER['REMOTE_ADDR']))
+if (empty($_GET['host']))
 {
-    $host = $_SERVER['REMOTE_ADDR'];
+    // Valid REMOTE_ADDR required to continue
+    if (empty($_SERVER['REMOTE_ADDR']) || !\Yggverse\Net\Socket::isHost($_SERVER['REMOTE_ADDR']))
+    {
+        exit(
+            json_encode(
+                [
+                    'success' => false,
+                    'message' => _('could not detect valid REMOTE_ADDR')
+                ]
+            )
+        );
+    }
+
+    else
+    {
+        $host = $_SERVER['REMOTE_ADDR'];
+    }
 }
 
 else
 {
-    $host = $_GET['host'];
+    // Valid host required to continue
+    if (isset($_GET['host']) && !\Yggverse\Net\Socket::isHost($_GET['host']))
+    {
+        exit(
+            json_encode(
+                [
+                    'success' => false,
+                    'message' => _('valid host required')
+                ]
+            )
+        );
+    }
+
+    else
+    {
+        $host = $_GET['host'];
+    }
 }
 
 // Connection test
 exit(
     json_encode(
         [
-            'success' => \Yggverse\Net\Socket::isOpen($_GET['host'], $_GET['port'], 3)
+            'success' => \Yggverse\Net\Socket::isOpen($host, $_GET['port'], 3)
         ]
     )
 );