From 234bb6425021b72f0db71667191b2c36dc593791 Mon Sep 17 00:00:00 2001
From: Mario <mario@mariovavti.com>
Date: Wed, 8 Mar 2023 10:04:29 +0000
Subject: port totp mfa from streams with some adjustions

---
 vendor/chillerlan/php-qrcode/src/Data/AlphaNum.php | 60 ++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 vendor/chillerlan/php-qrcode/src/Data/AlphaNum.php

(limited to 'vendor/chillerlan/php-qrcode/src/Data/AlphaNum.php')

diff --git a/vendor/chillerlan/php-qrcode/src/Data/AlphaNum.php b/vendor/chillerlan/php-qrcode/src/Data/AlphaNum.php
new file mode 100644
index 000000000..28d9d7563
--- /dev/null
+++ b/vendor/chillerlan/php-qrcode/src/Data/AlphaNum.php
@@ -0,0 +1,60 @@
+<?php
+/**
+ * Class AlphaNum
+ *
+ * @filesource   AlphaNum.php
+ * @created      25.11.2015
+ * @package      chillerlan\QRCode\Data
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2015 Smiley
+ * @license      MIT
+ */
+
+namespace chillerlan\QRCode\Data;
+
+use chillerlan\QRCode\QRCode;
+
+use function ord, sprintf;
+
+/**
+ * Alphanumeric mode: 0 to 9, A to Z, space, $ % * + - . / :
+ *
+ * ISO/IEC 18004:2000 Section 8.3.3
+ * ISO/IEC 18004:2000 Section 8.4.3
+ */
+final class AlphaNum extends QRDataAbstract{
+
+	protected int $datamode = QRCode::DATA_ALPHANUM;
+
+	protected array $lengthBits = [9, 11, 13];
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function write(string $data):void{
+
+		for($i = 0; $i + 1 < $this->strlen; $i += 2){
+			$this->bitBuffer->put($this->getCharCode($data[$i]) * 45 + $this->getCharCode($data[$i + 1]), 11);
+		}
+
+		if($i < $this->strlen){
+			$this->bitBuffer->put($this->getCharCode($data[$i]), 6);
+		}
+
+	}
+
+	/**
+	 * get the code for the given character
+	 *
+	 * @throws \chillerlan\QRCode\Data\QRCodeDataException on an illegal character occurence
+	 */
+	protected function getCharCode(string $chr):int{
+
+		if(!isset($this::CHAR_MAP_ALPHANUM[$chr])){
+			throw new QRCodeDataException(sprintf('illegal char: "%s" [%d]', $chr, ord($chr)));
+		}
+
+		return $this::CHAR_MAP_ALPHANUM[$chr];
+	}
+
+}
-- 
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