File size: 3,812 Bytes
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/**
* Ref https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT
*/
import type { IGetToken } from "strtok3";
export declare const Signature: {
LocalFileHeader: number;
DataDescriptor: number;
CentralFileHeader: number;
EndOfCentralDirectory: number;
};
interface IDataDescriptor {
signature: number;
compressedSize: number;
uncompressedSize: number;
}
export interface ILocalFileHeader extends IDataDescriptor {
minVersion: number;
dataDescriptor: boolean;
compressedMethod: number;
compressedSize: number;
uncompressedSize: number;
filenameLength: number;
extraFieldLength: number;
filename: string;
}
export declare const DataDescriptor: IGetToken<IDataDescriptor>;
/**
* First part of the ZIP Local File Header
* Offset | Bytes| Description
* -------|------+-------------------------------------------------------------------
* 0 | 4 | Signature (0x04034b50)
* 4 | 2 | Minimum version needed to extract
* 6 | 2 | Bit flag
* 8 | 2 | Compression method
* 10 | 2 | File last modification time (MS-DOS format)
* 12 | 2 | File last modification date (MS-DOS format)
* 14 | 4 | CRC-32 of uncompressed data
* 18 | 4 | Compressed size
* 22 | 4 | Uncompressed size
* 26 | 2 | File name length (n)
* 28 | 2 | Extra field length (m)
* 30 | n | File name
* 30 + n | m | Extra field
*/
export declare const LocalFileHeaderToken: IGetToken<ILocalFileHeader>;
interface IEndOfCentralDirectoryRecord {
signature: number;
nrOfThisDisk: number;
nrOfThisDiskWithTheStart: number;
nrOfEntriesOnThisDisk: number;
nrOfEntriesOfSize: number;
sizeOfCd: number;
offsetOfStartOfCd: number;
zipFileCommentLength: number;
}
/**
* 4.3.16 End of central directory record:
* end of central dir signature (0x06064b50) 4 bytes
* number of this disk 2 bytes
* number of the disk with the start of the central directory 2 bytes
* total number of entries in the central directory on this disk 2 bytes
* total number of entries in the size of the central directory 2 bytes
* sizeOfTheCentralDirectory 4 bytes
* offset of start of central directory with respect to the starting disk number 4 bytes
* .ZIP file comment length 2 bytes
* .ZIP file comment (variable size)
*/
export declare const EndOfCentralDirectoryRecordToken: IGetToken<IEndOfCentralDirectoryRecord>;
export interface IFileHeader extends ILocalFileHeader {
fileCommentLength: number;
relativeOffsetOfLocalHeader: number;
}
/**
* File header:
* central file header signature 4 bytes 0 (0x02014b50)
* version made by 2 bytes 4
* version needed to extract 2 bytes 6
* general purpose bit flag 2 bytes 8
* compression method 2 bytes 10
* last mod file time 2 bytes 12
* last mod file date 2 bytes 14
* crc-32 4 bytes 16
* compressed size 4 bytes 20
* uncompressed size 4 bytes 24
* file name length 2 bytes 28
* extra field length 2 bytes 30
* file comment length 2 bytes 32
* disk number start 2 bytes 34
* internal file attributes 2 bytes 36
* external file attributes 4 bytes 38
* relative offset of local header 4 bytes 42
*/
export declare const FileHeader: IGetToken<IFileHeader>;
export {};
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