111 lines
3.5 KiB
PHP
111 lines
3.5 KiB
PHP
<?php
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namespace App\Helpers;
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use QrCode;
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class CDKEY
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{
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private static $key = '[$]P&Pom4a9llX7#';
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public static function encode($code)
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{
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$encode = self::authCode($code, 'ENCODE');
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$encode = str_replace('/', '-', $encode);
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return route('index.index') . '/V/' . $encode;
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}
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/**
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* 生成器
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* @Author:<C.Jason>
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* @Date:2018-12-23T12:13:15+0800
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* @return [type] [description]
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*/
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public static function generator($code, $format = 'svg', $size = 300)
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{
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$URL = self::encode($code);
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switch ($format) {
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case 'svg':
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$qrcode = QrCode::format('svg')->errorCorrection("L")->size($size)->margin(0)->generate($URL);
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break;
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case 'png':
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$qrcode = 'data:image/png;base64,' . base64_encode(QrCode::format('svg')->errorCorrection("L")->size($size)->margin(0)->generate($URL));
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break;
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default:
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throw new \Exception('非法图片格式');
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break;
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}
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return [
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'url' => $URL,
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'qrcode' => $qrcode,
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];
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}
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public static function parse($string): string
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{
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$string = str_replace(' ', '+', $string);
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$string = str_replace('-', '/', $string);
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return self::authCode($string);
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}
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/**
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* 加密方法
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* @Author:<C.Jason>
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* @Date:2018-12-23T12:18:07+0800
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* @param [type] $string 要加密的
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* @param string $operation 操作
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* @param string $key 密钥
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* @param integer $expiry 过期时间
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* @return [type] [description]
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*/
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public static function authCode($string, $operation = 'DECODE', $key = '', $expiry = 0): string
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{
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$ckey_length = 4;
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$key = md5($key ? $key : self::$key);
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$keya = md5(substr($key, 0, 16));
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$keyb = md5(substr($key, 16, 16));
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$keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length) : substr(md5(microtime()), -$ckey_length)) : '';
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$cryptkey = $keya . md5($keya . $keyc);
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$key_length = strlen($cryptkey);
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$string = $operation == 'DECODE' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', $expiry ? $expiry + time() : 0) . substr(md5($string . $keyb), 0, 16) . $string;
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$string_length = strlen($string);
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$result = '';
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$box = range(0, 255);
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$rndkey = array();
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for ($i = 0; $i <= 255; $i++) {
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$rndkey[$i] = ord($cryptkey[$i % $key_length]);
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}
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for ($j = $i = 0; $i < 256; $i++) {
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$j = ($j + $box[$i] + $rndkey[$i]) % 256;
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$tmp = $box[$i];
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$box[$i] = $box[$j];
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$box[$j] = $tmp;
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}
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for ($a = $j = $i = 0; $i < $string_length; $i++) {
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$a = ($a + 1) % 256;
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$j = ($j + $box[$a]) % 256;
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$tmp = $box[$a];
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$box[$a] = $box[$j];
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$box[$j] = $tmp;
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$result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
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}
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if ($operation == 'DECODE') {
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if ((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26) . $keyb), 0, 16)) {
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return substr($result, 26);
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} else {
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return '';
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}
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} else {
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return $keyc . str_replace('=', '', base64_encode($result));
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}
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}
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}
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