Create Identity.php

src/Support/Identity.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Revolution\Bluesky\Support;
+
+class Identity
+{
+    protected const HANDLE_REGEX = '/^([a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?$/';
+
+    protected const DID_REGEX = '/^did:[a-z]+:[a-zA-Z0-9._:%-]*[a-zA-Z0-9._-]$/';
+
+    public static function isHandle(string $handle): bool
+    {
+        return preg_match(self::HANDLE_REGEX, $handle) === 1;
+    }
+
+    public static function isDID(string $did): bool
+    {
+        return preg_match(self::DID_REGEX, $did) === 1;
+    }
+}