add hex strategy

mokhosh · Nov 3, 2024 · dfb50d5 · dfb50d5
1 parent ecbf057
commit dfb50d5
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diff --git a/src/Strategies/Link/Hex.php b/src/Strategies/Link/Hex.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Mokhosh\Muddle\Strategies\Link;
+
+use Mokhosh\Muddle\Contracts\LinkStrategy;
+use Mokhosh\Muddle\Support\Str;
+
+class Hex implements LinkStrategy
+{
+    public function muddle(string $string, string $title): string
+    {
+        $id = Str::id();
+        $key = random_int(0, 255);
+        $hexed = Str::hex('mailto:'.$string, $key);
+        $script = <<<HTML
+        </a><script>(function() {
+            const codes = $id.getAttribute('href').split(' ')
+            $id.href = ''
+            for (const code of codes) $id.href = $id.getAttribute('href') + String.fromCharCode(parseInt(code, 16) ^ $key)
+        })()</script>
+        HTML;
+
+        return "<a id='$id' href='$hexed'>".$title.$script;
+    }
+
+    public function unmuddle(string $string): string
+    {
+        preg_match('/ \^ (\d+)/', $string, $key);
+        preg_match('/href=\'([^\']+)\'>/', $string, $hexed);
+        preg_match('/>([^<]+)<\/a>/', $string, $title);
+
+        return '<a href="'.Str::unhex($hexed[1], $key[1])."\">$title[1]</a>";
+    }
+}
diff --git a/tests/Strategies/Link/HexTest.php b/tests/Strategies/Link/HexTest.php
@@ -0,0 +1,10 @@
+<?php
+
+use Mokhosh\Muddle\Strategies\Link\Hex;
+
+it('muddles text', function () {
+    expect($muddled = (new Hex)->muddle('[email protected]', 'email'))
+        ->not->toBe('<a href="mailto:[email protected]">email</a>')
+        ->and((new Hex)->unmuddle($muddled))
+        ->toBe('<a href="mailto:[email protected]">email</a>');
+});