Upgrade framework

vendor/nette/utils/src/Utils/Random.php

@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+
+
+/**
+ * Secure random string generator.
+ */
+final class Random
+{
+	use Nette\StaticClass;
+
+	/**
+	 * Generates a random string of given length from characters specified in second argument.
+	 * Supports intervals, such as `0-9` or `A-Z`.
+	 */
+	public static function generate(int $length = 10, string $charlist = '0-9a-z'): string
+	{
+		$charlist = count_chars(preg_replace_callback('#.-.#', function (array $m): string {
+			return implode('', range($m[0][0], $m[0][2]));
+		}, $charlist), 3);
+		$chLen = strlen($charlist);
+
+		if ($length < 1) {
+			throw new Nette\InvalidArgumentException('Length must be greater than zero.');
+		} elseif ($chLen < 2) {
+			throw new Nette\InvalidArgumentException('Character list must contain at least two chars.');
+		}
+
+		$res = '';
+		for ($i = 0; $i < $length; $i++) {
+			$res .= $charlist[random_int(0, $chLen - 1)];
+		}
+
+		return $res;
+	}
+}