1 files changed, 56 insertions, 0 deletions

diff --git a/vendor/spomky-labs/base64url/src/Base64Url.php b/vendor/spomky-labs/base64url/src/Base64Url.php
new file mode 100644
index 0000000..260215a
--- /dev/null
+++ b/vendor/spomky-labs/base64url/src/Base64Url.php
@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2020 Spomky-Labs
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace Base64Url;
+
+use function base64_decode;
+use function base64_encode;
+use InvalidArgumentException;
+use function rtrim;
+use function strtr;
+
+/**
+ * Encode and decode data into Base64 Url Safe.
+ */
+final class Base64Url
+{
+    /**
+     * @param string $data       The data to encode
+     * @param bool   $usePadding If true, the "=" padding at end of the encoded value are kept, else it is removed
+     *
+     * @return string The data encoded
+     */
+    public static function encode(string $data, bool $usePadding = false): string
+    {
+        $encoded = strtr(base64_encode($data), '+/', '-_');
+
+        return true === $usePadding ? $encoded : rtrim($encoded, '=');
+    }
+
+    /**
+     * @param string $data The data to decode
+     *
+     * @throws InvalidArgumentException
+     *
+     * @return string The data decoded
+     */
+    public static function decode(string $data): string
+    {
+        $decoded = base64_decode(strtr($data, '-_', '+/'), true);
+        if (false === $decoded) {
+            throw new InvalidArgumentException('Invalid data provided');
+        }
+
+        return $decoded;
+    }
+}