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efrain |
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<?php
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declare(strict_types=1);
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namespace ZipStream;
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use DateTimeInterface;
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/**
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* @internal
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*/
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abstract class LocalFileHeader
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{
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private const SIGNATURE = 0x04034b50;
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public static function generate(
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int $versionNeededToExtract,
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int $generalPurposeBitFlag,
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CompressionMethod $compressionMethod,
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DateTimeInterface $lastModificationDateTime,
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int $crc32UncompressedData,
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int $compressedSize,
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int $uncompressedSize,
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string $fileName,
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string $extraField,
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): string {
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return PackField::pack(
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new PackField(format: 'V', value: self::SIGNATURE),
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new PackField(format: 'v', value: $versionNeededToExtract),
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new PackField(format: 'v', value: $generalPurposeBitFlag),
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new PackField(format: 'v', value: $compressionMethod->value),
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new PackField(format: 'V', value: Time::dateTimeToDosTime($lastModificationDateTime)),
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new PackField(format: 'V', value: $crc32UncompressedData),
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new PackField(format: 'V', value: $compressedSize),
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new PackField(format: 'V', value: $uncompressedSize),
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new PackField(format: 'v', value: strlen($fileName)),
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new PackField(format: 'v', value: strlen($extraField)),
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) . $fileName . $extraField;
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}
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}
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