94 lines
2.1 KiB
PHP
94 lines
2.1 KiB
PHP
<?php
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namespace PhpZip\Constants;
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use PhpZip\Exception\InvalidArgumentException;
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/**
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* Class ZipEncryptionMethod.
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*/
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final class ZipEncryptionMethod
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{
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const NONE = -1;
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/** @var int Traditional PKWARE encryption. */
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const PKWARE = 0;
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/** @var int WinZip AES-256 */
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const WINZIP_AES_256 = 1;
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/** @var int WinZip AES-128 */
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const WINZIP_AES_128 = 2;
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/** @var int WinZip AES-192 */
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const WINZIP_AES_192 = 3;
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/** @var array<int, string> */
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private static $ENCRYPTION_METHODS = [
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self::NONE => 'no encryption',
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self::PKWARE => 'Traditional PKWARE encryption',
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self::WINZIP_AES_128 => 'WinZip AES-128',
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self::WINZIP_AES_192 => 'WinZip AES-192',
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self::WINZIP_AES_256 => 'WinZip AES-256',
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];
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/**
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* @param int $value
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*
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* @return string
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*/
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public static function getEncryptionMethodName($value)
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{
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$value = (int) $value;
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return isset(self::$ENCRYPTION_METHODS[$value]) ?
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self::$ENCRYPTION_METHODS[$value] :
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'Unknown Encryption Method';
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}
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/**
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* @param int $encryptionMethod
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*
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* @return bool
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*/
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public static function hasEncryptionMethod($encryptionMethod)
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{
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return isset(self::$ENCRYPTION_METHODS[$encryptionMethod]);
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}
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/**
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* @param int $encryptionMethod
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*
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* @return bool
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*/
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public static function isWinZipAesMethod($encryptionMethod)
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{
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return \in_array(
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(int) $encryptionMethod,
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[
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self::WINZIP_AES_256,
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self::WINZIP_AES_192,
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self::WINZIP_AES_128,
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],
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true
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);
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}
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/**
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* @param int $encryptionMethod
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*
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* @throws InvalidArgumentException
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*/
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public static function checkSupport($encryptionMethod)
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{
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$encryptionMethod = (int) $encryptionMethod;
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if (!self::hasEncryptionMethod($encryptionMethod)) {
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throw new InvalidArgumentException(sprintf(
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'Encryption method %d is not supported.',
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$encryptionMethod
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));
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}
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}
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}
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