<?php
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namespace PhpZip\Constants;
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/**
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* General purpose bit flag constants.
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*/
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interface GeneralPurposeBitFlag
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{
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/**
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* General Purpose Bit Flag mask for encrypted data.
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* Bit 0: If set, indicates that the file is encrypted.
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*/
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const ENCRYPTION = 1; // 1 << 0
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/**
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* Compression Flag Bit 1 for method Deflating.
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*
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* Bit 2 Bit 1
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* 0 0 Normal compression
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* 0 1 Maximum compression
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* 1 0 Fast compression
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* 1 1 Super Fast compression
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*
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* @see GeneralPurposeBitFlag::COMPRESSION_FLAG2
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*/
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const COMPRESSION_FLAG1 = 2; // 1 << 1
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/**
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* Compression Flag Bit 2 for method Deflating.
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*
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* Bit 2 Bit 1
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* 0 0 Normal compression
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* 0 1 Maximum compression
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* 1 0 Fast compression
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* 1 1 Super Fast compression
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*
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* @see GeneralPurposeBitFlag::COMPRESSION_FLAG1
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*/
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const COMPRESSION_FLAG2 = 4; // 1 << 2
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/**
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* General Purpose Bit Flag mask for data descriptor.
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*
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* Bit 3: If this bit is set, the fields crc-32, compressed
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* size and uncompressed size are set to zero in the
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* local header. The correct values are put in the data
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* descriptor immediately following the compressed data.
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*/
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const DATA_DESCRIPTOR = 8; // 1 << 3
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/**
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* General Purpose Bit Flag mask for strong encryption.
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*
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* Bit 6: Strong encryption.
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* If this bit is set, you MUST set the version needed to extract
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* value to at least 50 and you MUST also set bit 0.
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* If AES encryption is used, the version needed to extract value
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* MUST be at least 51.
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*/
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const STRONG_ENCRYPTION = 64; // 1 << 6
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/**
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* General Purpose Bit Flag mask for UTF-8.
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*
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* Bit 11: Language encoding flag (EFS).
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* If this bit is set, the filename and comment fields
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* for this file MUST be encoded using UTF-8. (see APPENDIX D)
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*/
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const UTF8 = 2048; // 1 << 11
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}
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