primo commit

libraries/vendor/algo26-matthias/idna-convert/src/ToUnicode.php

@@ -0,0 +1,37 @@
+<?php
+namespace Algo26\IdnaConvert;
+
+use Algo26\IdnaConvert\Punycode\FromPunycode;
+use Algo26\IdnaConvert\TranscodeUnicode\TranscodeUnicode;
+
+class ToUnicode extends AbstractIdnaConvert implements IdnaConvertInterface
+{
+    /** @var TranscodeUnicode */
+    private $unicodeTransCoder;
+
+    /** @var FromPunycode */
+    private $punycodeEncoder;
+
+    public function __construct()
+    {
+        $this->unicodeTransCoder = new TranscodeUnicode();
+        $this->punycodeEncoder = new FromPunycode();
+    }
+
+    public function convert(string $host): string
+    {
+        // Drop any whitespace around
+        $input = trim($host);
+
+        $hostLabels = explode('.', $input);
+        foreach ($hostLabels as $index => $label) {
+            $return = $this->punycodeEncoder->convert($label);
+            if (!$return) {
+                $return = $label;
+            }
+            $hostLabels[$index] = $return;
+        }
+
+        return implode('.', $hostLabels);
+    }
+}