mirror of
https://github.com/leanote/desktop-app.git
synced 2025-10-18 01:16:56 +00:00
add node_modules
This commit is contained in:
life
284
node_modules/adm-zip/zipEntry.js
generated
vendored
Normal file
284
node_modules/adm-zip/zipEntry.js
generated
vendored
Normal file
@@ -0,0 +1,284 @@
|
||||
var Utils = require("./util"),
|
||||
Headers = require("./headers"),
|
||||
Constants = Utils.Constants,
|
||||
Methods = require("./methods");
|
||||
|
||||
module.exports = function (/*Buffer*/input) {
|
||||
|
||||
var _entryHeader = new Headers.EntryHeader(),
|
||||
_entryName = new Buffer(0),
|
||||
_comment = new Buffer(0),
|
||||
_isDirectory = false,
|
||||
uncompressedData = null,
|
||||
_extra = new Buffer(0);
|
||||
|
||||
function getCompressedDataFromZip() {
|
||||
if (!input || !Buffer.isBuffer(input)) {
|
||||
return new Buffer(0);
|
||||
}
|
||||
_entryHeader.loadDataHeaderFromBinary(input);
|
||||
return input.slice(_entryHeader.realDataOffset, _entryHeader.realDataOffset + _entryHeader.compressedSize)
|
||||
}
|
||||
|
||||
function crc32OK(data) {
|
||||
// if bit 3 (0x08) of the general-purpose flags field is set, then the CRC-32 and file sizes are not known when the header is written
|
||||
if (_entryHeader.flags & 0x8 != 0x8) {
|
||||
if (Utils.crc32(data) != _entryHeader.crc) {
|
||||
return false;
|
||||
}
|
||||
} else {
|
||||
// @TODO: load and check data descriptor header
|
||||
// The fields in the local header are filled with zero, and the CRC-32 and size are appended in a 12-byte structure
|
||||
// (optionally preceded by a 4-byte signature) immediately after the compressed data:
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
function decompress(/*Boolean*/async, /*Function*/callback, /*String*/pass) {
|
||||
if(typeof callback === 'undefined' && typeof async === 'string') {
|
||||
pass=async;
|
||||
async=void 0;
|
||||
}
|
||||
if (_isDirectory) {
|
||||
if (async && callback) {
|
||||
callback(new Buffer(0), Utils.Errors.DIRECTORY_CONTENT_ERROR); //si added error.
|
||||
}
|
||||
return new Buffer(0);
|
||||
}
|
||||
|
||||
var compressedData = getCompressedDataFromZip();
|
||||
|
||||
if (compressedData.length == 0) {
|
||||
if (async && callback) callback(compressedData, Utils.Errors.NO_DATA);//si added error.
|
||||
return compressedData;
|
||||
}
|
||||
|
||||
var data = new Buffer(_entryHeader.size);
|
||||
data.fill(0);
|
||||
|
||||
switch (_entryHeader.method) {
|
||||
case Utils.Constants.STORED:
|
||||
compressedData.copy(data);
|
||||
if (!crc32OK(data)) {
|
||||
if (async && callback) callback(data, Utils.Errors.BAD_CRC);//si added error
|
||||
return Utils.Errors.BAD_CRC;
|
||||
} else {//si added otherwise did not seem to return data.
|
||||
if (async && callback) callback(data);
|
||||
return data;
|
||||
}
|
||||
break;
|
||||
case Utils.Constants.DEFLATED:
|
||||
var inflater = new Methods.Inflater(compressedData);
|
||||
if (!async) {
|
||||
inflater.inflate(data);
|
||||
if (!crc32OK(data)) {
|
||||
console.warn(Utils.Errors.BAD_CRC + " " + _entryName.toString())
|
||||
}
|
||||
return data;
|
||||
} else {
|
||||
inflater.inflateAsync(function(result) {
|
||||
result.copy(data, 0);
|
||||
if (!crc32OK(data)) {
|
||||
if (callback) callback(data, Utils.Errors.BAD_CRC); //si added error
|
||||
} else { //si added otherwise did not seem to return data.
|
||||
if (callback) callback(data);
|
||||
}
|
||||
})
|
||||
}
|
||||
break;
|
||||
default:
|
||||
if (async && callback) callback(new Buffer(0), Utils.Errors.UNKNOWN_METHOD);
|
||||
return Utils.Errors.UNKNOWN_METHOD;
|
||||
}
|
||||
}
|
||||
|
||||
function compress(/*Boolean*/async, /*Function*/callback) {
|
||||
if ((!uncompressedData || !uncompressedData.length) && Buffer.isBuffer(input)) {
|
||||
// no data set or the data wasn't changed to require recompression
|
||||
if (async && callback) callback(getCompressedDataFromZip());
|
||||
return getCompressedDataFromZip();
|
||||
}
|
||||
|
||||
if (uncompressedData.length && !_isDirectory) {
|
||||
var compressedData;
|
||||
// Local file header
|
||||
switch (_entryHeader.method) {
|
||||
case Utils.Constants.STORED:
|
||||
_entryHeader.compressedSize = _entryHeader.size;
|
||||
|
||||
compressedData = new Buffer(uncompressedData.length);
|
||||
uncompressedData.copy(compressedData);
|
||||
|
||||
if (async && callback) callback(compressedData);
|
||||
return compressedData;
|
||||
|
||||
break;
|
||||
default:
|
||||
case Utils.Constants.DEFLATED:
|
||||
|
||||
var deflater = new Methods.Deflater(uncompressedData);
|
||||
if (!async) {
|
||||
var deflated = deflater.deflate();
|
||||
_entryHeader.compressedSize = deflated.length;
|
||||
return deflated;
|
||||
} else {
|
||||
deflater.deflateAsync(function(data) {
|
||||
compressedData = new Buffer(data.length);
|
||||
_entryHeader.compressedSize = data.length;
|
||||
data.copy(compressedData);
|
||||
callback && callback(compressedData);
|
||||
})
|
||||
}
|
||||
deflater = null;
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
if (async && callback) {
|
||||
callback(new Buffer(0));
|
||||
} else {
|
||||
return new Buffer(0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function readUInt64LE(buffer, offset) {
|
||||
return (buffer.readUInt32LE(offset + 4) << 4) + buffer.readUInt32LE(offset);
|
||||
}
|
||||
|
||||
function parseExtra(data) {
|
||||
var offset = 0;
|
||||
var signature, size, part;
|
||||
while(offset<data.length) {
|
||||
signature = data.readUInt16LE(offset);
|
||||
offset += 2;
|
||||
size = data.readUInt16LE(offset);
|
||||
offset += 2;
|
||||
part = data.slice(offset, offset+size);
|
||||
offset += size;
|
||||
if(Constants.ID_ZIP64 === signature) {
|
||||
parseZip64ExtendedInformation(part);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//Override header field values with values from the ZIP64 extra field
|
||||
function parseZip64ExtendedInformation(data) {
|
||||
var size, compressedSize, offset, diskNumStart;
|
||||
|
||||
if(data.length >= Constants.EF_ZIP64_SCOMP) {
|
||||
size = readUInt64LE(data, Constants.EF_ZIP64_SUNCOMP);
|
||||
if(_entryHeader.size === Constants.EF_ZIP64_OR_32) {
|
||||
_entryHeader.size = size;
|
||||
}
|
||||
}
|
||||
if(data.length >= Constants.EF_ZIP64_RHO) {
|
||||
compressedSize = readUInt64LE(data, Constants.EF_ZIP64_SCOMP);
|
||||
if(_entryHeader.compressedSize === Constants.EF_ZIP64_OR_32) {
|
||||
_entryHeader.compressedSize = compressedSize;
|
||||
}
|
||||
}
|
||||
if(data.length >= Constants.EF_ZIP64_DSN) {
|
||||
offset = readUInt64LE(data, Constants.EF_ZIP64_RHO);
|
||||
if(_entryHeader.offset === Constants.EF_ZIP64_OR_32) {
|
||||
_entryHeader.offset = offset;
|
||||
}
|
||||
}
|
||||
if(data.length >= Constants.EF_ZIP64_DSN+4) {
|
||||
diskNumStart = data.readUInt32LE(Constants.EF_ZIP64_DSN);
|
||||
if(_entryHeader.diskNumStart === Constants.EF_ZIP64_OR_16) {
|
||||
_entryHeader.diskNumStart = diskNumStart;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return {
|
||||
get entryName () { return _entryName.toString(); },
|
||||
get rawEntryName() { return _entryName; },
|
||||
set entryName (val) {
|
||||
_entryName = Utils.toBuffer(val);
|
||||
var lastChar = _entryName[_entryName.length - 1];
|
||||
_isDirectory = (lastChar == 47) || (lastChar == 92);
|
||||
_entryHeader.fileNameLength = _entryName.length;
|
||||
},
|
||||
|
||||
get extra () { return _extra; },
|
||||
set extra (val) {
|
||||
_extra = val;
|
||||
_entryHeader.extraLength = val.length;
|
||||
parseExtra(val);
|
||||
},
|
||||
|
||||
get comment () { return _comment.toString(); },
|
||||
set comment (val) {
|
||||
_comment = Utils.toBuffer(val);
|
||||
_entryHeader.commentLength = _comment.length;
|
||||
},
|
||||
|
||||
get name () { var n = _entryName.toString(); return _isDirectory ? n.substr(n.length - 1).split("/").pop() : n.split("/").pop(); },
|
||||
get isDirectory () { return _isDirectory },
|
||||
|
||||
getCompressedData : function() {
|
||||
return compress(false, null)
|
||||
},
|
||||
|
||||
getCompressedDataAsync : function(/*Function*/callback) {
|
||||
compress(true, callback)
|
||||
},
|
||||
|
||||
setData : function(value) {
|
||||
uncompressedData = Utils.toBuffer(value);
|
||||
if (!_isDirectory && uncompressedData.length) {
|
||||
_entryHeader.size = uncompressedData.length;
|
||||
_entryHeader.method = Utils.Constants.DEFLATED;
|
||||
_entryHeader.crc = Utils.crc32(value);
|
||||
} else { // folders and blank files should be stored
|
||||
_entryHeader.method = Utils.Constants.STORED;
|
||||
}
|
||||
},
|
||||
|
||||
getData : function(pass) {
|
||||
return decompress(false, null, pass);
|
||||
},
|
||||
|
||||
getDataAsync : function(/*Function*/callback, pass) {
|
||||
decompress(true, callback, pass)
|
||||
},
|
||||
|
||||
set attr(attr) { _entryHeader.attr = attr; },
|
||||
get attr() { return _entryHeader.attr; },
|
||||
|
||||
set header(/*Buffer*/data) {
|
||||
_entryHeader.loadFromBinary(data);
|
||||
},
|
||||
|
||||
get header() {
|
||||
return _entryHeader;
|
||||
},
|
||||
|
||||
packHeader : function() {
|
||||
var header = _entryHeader.entryHeaderToBinary();
|
||||
// add
|
||||
_entryName.copy(header, Utils.Constants.CENHDR);
|
||||
if (_entryHeader.extraLength) {
|
||||
_extra.copy(header, Utils.Constants.CENHDR + _entryName.length)
|
||||
}
|
||||
if (_entryHeader.commentLength) {
|
||||
_comment.copy(header, Utils.Constants.CENHDR + _entryName.length + _entryHeader.extraLength, _comment.length);
|
||||
}
|
||||
return header;
|
||||
},
|
||||
|
||||
toString : function() {
|
||||
return '{\n' +
|
||||
'\t"entryName" : "' + _entryName.toString() + "\",\n" +
|
||||
'\t"name" : "' + _entryName.toString().split("/").pop() + "\",\n" +
|
||||
'\t"comment" : "' + _comment.toString() + "\",\n" +
|
||||
'\t"isDirectory" : ' + _isDirectory + ",\n" +
|
||||
'\t"header" : ' + _entryHeader.toString().replace(/\t/mg, "\t\t") + ",\n" +
|
||||
'\t"compressedData" : <' + (input && input.length + " bytes buffer" || "null") + ">\n" +
|
||||
'\t"data" : <' + (uncompressedData && uncompressedData.length + " bytes buffer" || "null") + ">\n" +
|
||||
'}';
|
||||
}
|
||||
}
|
||||
};
|
||||
Reference in New Issue
Block a user