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<?php |
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namespace ElfSundae\Laravel\Support; |
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use Symfony\Component\HttpFoundation\File\MimeType\ExtensionGuesser; |
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class Helper |
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{ |
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/** |
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* Get file extension for MIME type. |
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* |
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* @param string $mimeType |
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* @param string $prefix |
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* @return string|null |
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*/ |
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public static function fileExtensionForMimeType($mimeType, $prefix = '') |
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{ |
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$extension = ExtensionGuesser::getInstance()->guess($mimeType); |
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if (! is_null($extension)) { |
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if ('jpeg' == $extension) { |
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$extension = 'jpg'; |
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} |
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return $prefix.$extension; |
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} |
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} |
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/** |
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* Convert an iOS platform to the device model name. |
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* |
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* @see https://www.theiphonewiki.com/wiki/Models |
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* @see https://support.hockeyapp.net/kb/client-integration-ios-mac-os-x-tvos/ios-device-types |
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* |
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* @param string $platform |
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* @return string |
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*/ |
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public static function iDeviceModel($platform) |
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{ |
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static $iDeviceModels = null; |
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if (is_null($iDeviceModels)) { |
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$iDeviceModels = [ |
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'i386' => 'Simulator', |
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'x86_64' => 'Simulator', |
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'iPhone1,1' => 'iPhone', |
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'iPhone1,2' => 'iPhone 3G', |
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'iPhone2,1' => 'iPhone 3GS', |
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'iPhone3,1' => 'iPhone 4', |
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'iPhone3,2' => 'iPhone 4', |
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'iPhone3,3' => 'iPhone 4', |
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'iPhone4,1' => 'iPhone 4S', |
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'iPhone5,1' => 'iPhone 5', |
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'iPhone5,2' => 'iPhone 5', |
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'iPhone5,3' => 'iPhone 5c', |
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'iPhone5,4' => 'iPhone 5c', |
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'iPhone6,1' => 'iPhone 5s', |
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'iPhone6,2' => 'iPhone 5s', |
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'iPhone7,1' => 'iPhone 6 Plus', |
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'iPhone7,2' => 'iPhone 6', |
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'iPhone8,1' => 'iPhone 6s', |
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'iPhone8,2' => 'iPhone 6s Plus', |
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'iPhone8,4' => 'iPhone SE', |
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'iPhone9,1' => 'iPhone 7', |
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'iPhone9,2' => 'iPhone 7 Plus', |
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'iPhone9,3' => 'iPhone 7', |
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'iPhone9,4' => 'iPhone 7 Plus', |
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'iPod1,1' => 'iPod touch', |
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'iPod2,1' => 'iPod touch 2G', |
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'iPod3,1' => 'iPod touch 3G', |
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'iPod4,1' => 'iPod touch 4G', |
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'iPod5,1' => 'iPod touch 5G', |
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'iPod7,1' => 'iPod touch 6G', |
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'iPad1,1' => 'iPad', |
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'iPad2,1' => 'iPad 2', |
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'iPad2,2' => 'iPad 2', |
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'iPad2,3' => 'iPad 2', |
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'iPad2,4' => 'iPad 2', |
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'iPad2,5' => 'iPad mini', |
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'iPad2,6' => 'iPad mini', |
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'iPad2,7' => 'iPad mini', |
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'iPad3,1' => 'iPad 3', |
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'iPad3,2' => 'iPad 3', |
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'iPad3,3' => 'iPad 3', |
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'iPad3,4' => 'iPad 4', |
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'iPad3,5' => 'iPad 4', |
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'iPad3,6' => 'iPad 4', |
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'iPad4,1' => 'iPad Air', |
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'iPad4,2' => 'iPad Air', |
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'iPad4,3' => 'iPad Air', |
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'iPad4,4' => 'iPad mini 2', |
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'iPad4,5' => 'iPad mini 2', |
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'iPad4,6' => 'iPad mini 2', |
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'iPad4,7' => 'iPad mini 3', |
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'iPad4,8' => 'iPad mini 3', |
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'iPad4,9' => 'iPad mini 3', |
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'iPad5,1' => 'iPad mini 4', |
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'iPad5,2' => 'iPad mini 4', |
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'iPad5,3' => 'iPad Air 2', |
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'iPad5,4' => 'iPad Air 2', |
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'iPad6,3' => 'iPad Pro', |
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'iPad6,4' => 'iPad Pro', |
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'iPad6,7' => 'iPad Pro', |
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'iPad6,8' => 'iPad Pro', |
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'AppleTV2,1' => 'Apple TV 2G', |
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'AppleTV3,1' => 'Apple TV 3G', |
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'AppleTV3,2' => 'Apple TV 3G', |
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'AppleTV5,3' => 'Apple TV 4G', |
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'Watch1,1' => 'Apple Watch', |
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'Watch1,2' => 'Apple Watch', |
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'Watch2,6' => 'Apple Watch Series 1', |
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'Watch2,7' => 'Apple Watch Series 1', |
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'Watch2,3' => 'Apple Watch Series 2', |
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'Watch2,4' => 'Apple Watch Series 2', |
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]; |
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} |
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return isset($iDeviceModels[$platform]) ? $iDeviceModels[$platform] : $platform; |
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} |
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/** |
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* Get the mail homepage. |
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* |
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* @param string $address |
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* @return string|null |
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*/ |
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public static function mailHomepage($address) |
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{ |
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if (preg_match('#@([a-z0-9.-]+)#i', $address, $match)) { |
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$list = [ |
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'qq.com' => 'https://mail.qq.com', |
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'vip.qq.com' => 'https://mail.qq.com', |
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'126.com' => 'http://www.126.com', |
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'gmail.com' => 'https://mail.google.com', |
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'139.com' => 'http://mail.10086.cn', |
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'wo.cn' => 'http://mail.wo.com.cn', |
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'sina.com' => 'http://mail.sina.com.cn', |
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'sina.cn' => 'http://mail.sina.com.cn', |
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'vip.sina.com' => 'http://mail.sina.com.cn', |
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]; |
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$domain = strtolower($match[1]); |
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return isset($list[$domain]) ? $list[$domain] : 'http://mail.'.$domain; |
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} |
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} |
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/** |
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* Encrypt ASCII string via XOR. |
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* |
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* @param string $text |
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* @param string|null $key |
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* @return string |
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*/ |
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public static function sampleEncrypt($text, $key = null) |
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{ |
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$text = (string) $text; |
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if (is_null($key)) { |
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$key = app('encrypter')->getKey(); |
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} |
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// 生成随机字符串 |
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$random = str_random(strlen($text)); |
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// 按字符拼接：随机字符串 + 随机字符串异或原文 |
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$tmp = static::sampleEncryption($text, $random, function ($a, $b) { |
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return $b.($a ^ $b); |
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}); |
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// 异或 $tmp 和 $key |
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$result = static::sampleEncryption($tmp, $key); |
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return urlsafe_base64_encode($result); |
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} |
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/** |
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* Decrypt string via XOR. |
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* |
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* @param string $text |
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* @param string|null $key |
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* @return string |
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*/ |
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public static function sampleDecrypt($text, $key = null) |
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{ |
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if (is_null($key)) { |
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$key = app('encrypter')->getKey(); |
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} |
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$tmp = static::sampleEncryption(urlsafe_base64_decode($text), $key); |
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$tmpLength = strlen($tmp); |
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$result = ''; |
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for ($i = 0; $i < $tmpLength, ($i + 1) < $tmpLength; $i += 2) { |
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$result .= $tmp[$i] ^ $tmp[$i + 1]; |
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} |
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return $result; |
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} |
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/** |
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* Do a sample XOR encryption. |
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* |
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* @param string $text |
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* @param string $key |
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* @param \Closure|null $callback `($a, $b, $index)` |
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* @return string |
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*/ |
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protected static function sampleEncryption($text, $key, $callback = null) |
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{ |
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// 对 $text 和 $key 的每个字符进行运算。 |
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// $callback 为 null 时默认进行异或运算。 |
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// $callback 参数： 第 i 位 $text, 第 i 位 $key, 下标 i |
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// $callback 返回 false 时，结束字符循环. |
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$text = (string) $text; |
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$key = (string) $key; |
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$keyLength = strlen($key); |
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if (is_null($callback)) { |
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$callback = function ($a, $b) { |
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return $a ^ $b; |
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}; |
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} |
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$result = ''; |
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$textLength = strlen($text); |
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for ($i = 0; $i < $textLength; $i++) { |
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$tmp = $callback($text[$i], $key[$i % $keyLength], $i); |
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if (false === $tmp) { |
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break; |
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} |
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$result .= $tmp; |
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} |
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return $result; |
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} |
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} |
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ElfSundae /
laravel-support
