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2023-06-09 20:08:47 -05:00
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MIT License
Copyright (c) 2012 Another-D-Mention Software and other contributors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# ADM-ZIP for NodeJS with added support for electron original-fs
ADM-ZIP is a pure JavaScript implementation for zip data compression for [NodeJS](https://nodejs.org/).
# Installation
With [npm](https://www.npmjs.com/) do:
$ npm install adm-zip
## What is it good for?
The library allows you to:
- decompress zip files directly to disk or in memory buffers
- compress files and store them to disk in .zip format or in compressed buffers
- update content of/add new/delete files from an existing .zip
# Dependencies
There are no other nodeJS libraries that ADM-ZIP is dependent of
# Examples
## Basic usage
```javascript
var AdmZip = require("adm-zip");
// reading archives
var zip = new AdmZip("./my_file.zip");
var zipEntries = zip.getEntries(); // an array of ZipEntry records
zipEntries.forEach(function (zipEntry) {
console.log(zipEntry.toString()); // outputs zip entries information
if (zipEntry.entryName == "my_file.txt") {
console.log(zipEntry.getData().toString("utf8"));
}
});
// outputs the content of some_folder/my_file.txt
console.log(zip.readAsText("some_folder/my_file.txt"));
// extracts the specified file to the specified location
zip.extractEntryTo(/*entry name*/ "some_folder/my_file.txt", /*target path*/ "/home/me/tempfolder", /*maintainEntryPath*/ false, /*overwrite*/ true);
// extracts everything
zip.extractAllTo(/*target path*/ "/home/me/zipcontent/", /*overwrite*/ true);
// creating archives
var zip = new AdmZip();
// add file directly
var content = "inner content of the file";
zip.addFile("test.txt", Buffer.from(content, "utf8"), "entry comment goes here");
// add local file
zip.addLocalFile("/home/me/some_picture.png");
// get everything as a buffer
var willSendthis = zip.toBuffer();
// or write everything to disk
zip.writeZip(/*target file name*/ "/home/me/files.zip");
// ... more examples in the wiki
```
For more detailed information please check out the [wiki](https://github.com/cthackers/adm-zip/wiki).
[![Build Status](https://travis-ci.org/cthackers/adm-zip.svg?branch=master)](https://travis-ci.org/cthackers/adm-zip)

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const Utils = require("./util");
const pth = require("path");
const ZipEntry = require("./zipEntry");
const ZipFile = require("./zipFile");
const get_Bool = (val, def) => (typeof val === "boolean" ? val : def);
const get_Str = (val, def) => (typeof val === "string" ? val : def);
const defaultOptions = {
// option "noSort" : if true it disables files sorting
noSort: false,
// read entries during load (initial loading may be slower)
readEntries: false,
// default method is none
method: Utils.Constants.NONE,
// file system
fs: null
};
module.exports = function (/**String*/ input, /** object */ options) {
let inBuffer = null;
// create object based default options, allowing them to be overwritten
const opts = Object.assign(Object.create(null), defaultOptions);
// test input variable
if (input && "object" === typeof input) {
// if value is not buffer we accept it to be object with options
if (!(input instanceof Uint8Array)) {
Object.assign(opts, input);
input = opts.input ? opts.input : undefined;
if (opts.input) delete opts.input;
}
// if input is buffer
if (Buffer.isBuffer(input)) {
inBuffer = input;
opts.method = Utils.Constants.BUFFER;
input = undefined;
}
}
// assign options
Object.assign(opts, options);
// instanciate utils filesystem
const filetools = new Utils(opts);
// if input is file name we retrieve its content
if (input && "string" === typeof input) {
// load zip file
if (filetools.fs.existsSync(input)) {
opts.method = Utils.Constants.FILE;
opts.filename = input;
inBuffer = filetools.fs.readFileSync(input);
} else {
throw new Error(Utils.Errors.INVALID_FILENAME);
}
}
// create variable
const _zip = new ZipFile(inBuffer, opts);
const { canonical, sanitize } = Utils;
function getEntry(/**Object*/ entry) {
if (entry && _zip) {
var item;
// If entry was given as a file name
if (typeof entry === "string") item = _zip.getEntry(entry);
// if entry was given as a ZipEntry object
if (typeof entry === "object" && typeof entry.entryName !== "undefined" && typeof entry.header !== "undefined") item = _zip.getEntry(entry.entryName);
if (item) {
return item;
}
}
return null;
}
function fixPath(zipPath) {
const { join, normalize, sep } = pth.posix;
// convert windows file separators and normalize
return join(".", normalize(sep + zipPath.split("\\").join(sep) + sep));
}
return {
/**
* Extracts the given entry from the archive and returns the content as a Buffer object
* @param entry ZipEntry object or String with the full path of the entry
*
* @return Buffer or Null in case of error
*/
readFile: function (/**Object*/ entry, /*String, Buffer*/ pass) {
var item = getEntry(entry);
return (item && item.getData(pass)) || null;
},
/**
* Asynchronous readFile
* @param entry ZipEntry object or String with the full path of the entry
* @param callback
*
* @return Buffer or Null in case of error
*/
readFileAsync: function (/**Object*/ entry, /**Function*/ callback) {
var item = getEntry(entry);
if (item) {
item.getDataAsync(callback);
} else {
callback(null, "getEntry failed for:" + entry);
}
},
/**
* Extracts the given entry from the archive and returns the content as plain text in the given encoding
* @param entry ZipEntry object or String with the full path of the entry
* @param encoding Optional. If no encoding is specified utf8 is used
*
* @return String
*/
readAsText: function (/**Object*/ entry, /**String=*/ encoding) {
var item = getEntry(entry);
if (item) {
var data = item.getData();
if (data && data.length) {
return data.toString(encoding || "utf8");
}
}
return "";
},
/**
* Asynchronous readAsText
* @param entry ZipEntry object or String with the full path of the entry
* @param callback
* @param encoding Optional. If no encoding is specified utf8 is used
*
* @return String
*/
readAsTextAsync: function (/**Object*/ entry, /**Function*/ callback, /**String=*/ encoding) {
var item = getEntry(entry);
if (item) {
item.getDataAsync(function (data, err) {
if (err) {
callback(data, err);
return;
}
if (data && data.length) {
callback(data.toString(encoding || "utf8"));
} else {
callback("");
}
});
} else {
callback("");
}
},
/**
* Remove the entry from the file or the entry and all it's nested directories and files if the given entry is a directory
*
* @param entry
*/
deleteFile: function (/**Object*/ entry) {
// @TODO: test deleteFile
var item = getEntry(entry);
if (item) {
_zip.deleteEntry(item.entryName);
}
},
/**
* Adds a comment to the zip. The zip must be rewritten after adding the comment.
*
* @param comment
*/
addZipComment: function (/**String*/ comment) {
// @TODO: test addZipComment
_zip.comment = comment;
},
/**
* Returns the zip comment
*
* @return String
*/
getZipComment: function () {
return _zip.comment || "";
},
/**
* Adds a comment to a specified zipEntry. The zip must be rewritten after adding the comment
* The comment cannot exceed 65535 characters in length
*
* @param entry
* @param comment
*/
addZipEntryComment: function (/**Object*/ entry, /**String*/ comment) {
var item = getEntry(entry);
if (item) {
item.comment = comment;
}
},
/**
* Returns the comment of the specified entry
*
* @param entry
* @return String
*/
getZipEntryComment: function (/**Object*/ entry) {
var item = getEntry(entry);
if (item) {
return item.comment || "";
}
return "";
},
/**
* Updates the content of an existing entry inside the archive. The zip must be rewritten after updating the content
*
* @param entry
* @param content
*/
updateFile: function (/**Object*/ entry, /**Buffer*/ content) {
var item = getEntry(entry);
if (item) {
item.setData(content);
}
},
/**
* Adds a file from the disk to the archive
*
* @param localPath File to add to zip
* @param zipPath Optional path inside the zip
* @param zipName Optional name for the file
*/
addLocalFile: function (/**String*/ localPath, /**String=*/ zipPath, /**String=*/ zipName, /**String*/ comment) {
if (filetools.fs.existsSync(localPath)) {
// fix ZipPath
zipPath = zipPath ? fixPath(zipPath) : "";
// p - local file name
var p = localPath.split("\\").join("/").split("/").pop();
// add file name into zippath
zipPath += zipName ? zipName : p;
// read file attributes
const _attr = filetools.fs.statSync(localPath);
// add file into zip file
this.addFile(zipPath, filetools.fs.readFileSync(localPath), comment, _attr);
} else {
throw new Error(Utils.Errors.FILE_NOT_FOUND.replace("%s", localPath));
}
},
/**
* Adds a local directory and all its nested files and directories to the archive
*
* @param localPath
* @param zipPath optional path inside zip
* @param filter optional RegExp or Function if files match will
* be included.
* @param {number | object} attr - number as unix file permissions, object as filesystem Stats object
*/
addLocalFolder: function (/**String*/ localPath, /**String=*/ zipPath, /**=RegExp|Function*/ filter, /**=number|object*/ attr) {
// Prepare filter
if (filter instanceof RegExp) {
// if filter is RegExp wrap it
filter = (function (rx) {
return function (filename) {
return rx.test(filename);
};
})(filter);
} else if ("function" !== typeof filter) {
// if filter is not function we will replace it
filter = function () {
return true;
};
}
// fix ZipPath
zipPath = zipPath ? fixPath(zipPath) : "";
// normalize the path first
localPath = pth.normalize(localPath);
if (filetools.fs.existsSync(localPath)) {
const items = filetools.findFiles(localPath);
const self = this;
if (items.length) {
items.forEach(function (filepath) {
var p = pth.relative(localPath, filepath).split("\\").join("/"); //windows fix
if (filter(p)) {
var stats = filetools.fs.statSync(filepath);
if (stats.isFile()) {
self.addFile(zipPath + p, filetools.fs.readFileSync(filepath), "", attr ? attr : stats);
} else {
self.addFile(zipPath + p + "/", Buffer.alloc(0), "", attr ? attr : stats);
}
}
});
}
} else {
throw new Error(Utils.Errors.FILE_NOT_FOUND.replace("%s", localPath));
}
},
/**
* Asynchronous addLocalFile
* @param localPath
* @param callback
* @param zipPath optional path inside zip
* @param filter optional RegExp or Function if files match will
* be included.
*/
addLocalFolderAsync: function (/*String*/ localPath, /*Function*/ callback, /*String*/ zipPath, /*RegExp|Function*/ filter) {
if (filter instanceof RegExp) {
filter = (function (rx) {
return function (filename) {
return rx.test(filename);
};
})(filter);
} else if ("function" !== typeof filter) {
filter = function () {
return true;
};
}
// fix ZipPath
zipPath = zipPath ? fixPath(zipPath) : "";
// normalize the path first
localPath = pth.normalize(localPath);
var self = this;
filetools.fs.open(localPath, "r", function (err) {
if (err && err.code === "ENOENT") {
callback(undefined, Utils.Errors.FILE_NOT_FOUND.replace("%s", localPath));
} else if (err) {
callback(undefined, err);
} else {
var items = filetools.findFiles(localPath);
var i = -1;
var next = function () {
i += 1;
if (i < items.length) {
var filepath = items[i];
var p = pth.relative(localPath, filepath).split("\\").join("/"); //windows fix
p = p
.normalize("NFD")
.replace(/[\u0300-\u036f]/g, "")
.replace(/[^\x20-\x7E]/g, ""); // accent fix
if (filter(p)) {
filetools.fs.stat(filepath, function (er0, stats) {
if (er0) callback(undefined, er0);
if (stats.isFile()) {
filetools.fs.readFile(filepath, function (er1, data) {
if (er1) {
callback(undefined, er1);
} else {
self.addFile(zipPath + p, data, "", stats);
next();
}
});
} else {
self.addFile(zipPath + p + "/", Buffer.alloc(0), "", stats);
next();
}
});
} else {
process.nextTick(() => {
next();
});
}
} else {
callback(true, undefined);
}
};
next();
}
});
},
/**
*
* @param {string} localPath - path where files will be extracted
* @param {object} props - optional properties
* @param {string} props.zipPath - optional path inside zip
* @param {regexp, function} props.filter - RegExp or Function if files match will be included.
*/
addLocalFolderPromise: function (/*String*/ localPath, /* object */ props) {
return new Promise((resolve, reject) => {
const { filter, zipPath } = Object.assign({}, props);
this.addLocalFolderAsync(
localPath,
(done, err) => {
if (err) reject(err);
if (done) resolve(this);
},
zipPath,
filter
);
});
},
/**
* Allows you to create a entry (file or directory) in the zip file.
* If you want to create a directory the entryName must end in / and a null buffer should be provided.
* Comment and attributes are optional
*
* @param {string} entryName
* @param {Buffer | string} content - file content as buffer or utf8 coded string
* @param {string} comment - file comment
* @param {number | object} attr - number as unix file permissions, object as filesystem Stats object
*/
addFile: function (/**String*/ entryName, /**Buffer*/ content, /**String*/ comment, /**Number*/ attr) {
let entry = getEntry(entryName);
const update = entry != null;
// prepare new entry
if (!update) {
entry = new ZipEntry();
entry.entryName = entryName;
}
entry.comment = comment || "";
const isStat = "object" === typeof attr && attr instanceof filetools.fs.Stats;
// last modification time from file stats
if (isStat) {
entry.header.time = attr.mtime;
}
// Set file attribute
var fileattr = entry.isDirectory ? 0x10 : 0; // (MS-DOS directory flag)
// extended attributes field for Unix
// set file type either S_IFDIR / S_IFREG
let unix = entry.isDirectory ? 0x4000 : 0x8000;
if (isStat) {
// File attributes from file stats
unix |= 0xfff & attr.mode;
} else if ("number" === typeof attr) {
// attr from given attr values
unix |= 0xfff & attr;
} else {
// Default values:
unix |= entry.isDirectory ? 0o755 : 0o644; // permissions (drwxr-xr-x) or (-r-wr--r--)
}
fileattr = (fileattr | (unix << 16)) >>> 0; // add attributes
entry.attr = fileattr;
entry.setData(content);
if (!update) _zip.setEntry(entry);
},
/**
* Returns an array of ZipEntry objects representing the files and folders inside the archive
*
* @return Array
*/
getEntries: function () {
return _zip ? _zip.entries : [];
},
/**
* Returns a ZipEntry object representing the file or folder specified by ``name``.
*
* @param name
* @return ZipEntry
*/
getEntry: function (/**String*/ name) {
return getEntry(name);
},
getEntryCount: function () {
return _zip.getEntryCount();
},
forEach: function (callback) {
return _zip.forEach(callback);
},
/**
* Extracts the given entry to the given targetPath
* If the entry is a directory inside the archive, the entire directory and it's subdirectories will be extracted
*
* @param entry ZipEntry object or String with the full path of the entry
* @param targetPath Target folder where to write the file
* @param maintainEntryPath If maintainEntryPath is true and the entry is inside a folder, the entry folder
* will be created in targetPath as well. Default is TRUE
* @param overwrite If the file already exists at the target path, the file will be overwriten if this is true.
* Default is FALSE
* @param keepOriginalPermission The file will be set as the permission from the entry if this is true.
* Default is FALSE
* @param outFileName String If set will override the filename of the extracted file (Only works if the entry is a file)
*
* @return Boolean
*/
extractEntryTo: function (
/**Object*/ entry,
/**String*/ targetPath,
/**Boolean*/ maintainEntryPath,
/**Boolean*/ overwrite,
/**Boolean*/ keepOriginalPermission,
/**String**/ outFileName
) {
overwrite = get_Bool(overwrite, false);
keepOriginalPermission = get_Bool(keepOriginalPermission, false);
maintainEntryPath = get_Bool(maintainEntryPath, true);
outFileName = get_Str(outFileName, get_Str(keepOriginalPermission, undefined));
var item = getEntry(entry);
if (!item) {
throw new Error(Utils.Errors.NO_ENTRY);
}
var entryName = canonical(item.entryName);
var target = sanitize(targetPath, outFileName && !item.isDirectory ? outFileName : maintainEntryPath ? entryName : pth.basename(entryName));
if (item.isDirectory) {
var children = _zip.getEntryChildren(item);
children.forEach(function (child) {
if (child.isDirectory) return;
var content = child.getData();
if (!content) {
throw new Error(Utils.Errors.CANT_EXTRACT_FILE);
}
var name = canonical(child.entryName);
var childName = sanitize(targetPath, maintainEntryPath ? name : pth.basename(name));
// The reverse operation for attr depend on method addFile()
const fileAttr = keepOriginalPermission ? child.header.fileAttr : undefined;
filetools.writeFileTo(childName, content, overwrite, fileAttr);
});
return true;
}
var content = item.getData();
if (!content) throw new Error(Utils.Errors.CANT_EXTRACT_FILE);
if (filetools.fs.existsSync(target) && !overwrite) {
throw new Error(Utils.Errors.CANT_OVERRIDE);
}
// The reverse operation for attr depend on method addFile()
const fileAttr = keepOriginalPermission ? entry.header.fileAttr : undefined;
filetools.writeFileTo(target, content, overwrite, fileAttr);
return true;
},
/**
* Test the archive
*
*/
test: function (pass) {
if (!_zip) {
return false;
}
for (var entry in _zip.entries) {
try {
if (entry.isDirectory) {
continue;
}
var content = _zip.entries[entry].getData(pass);
if (!content) {
return false;
}
} catch (err) {
return false;
}
}
return true;
},
/**
* Extracts the entire archive to the given location
*
* @param targetPath Target location
* @param overwrite If the file already exists at the target path, the file will be overwriten if this is true.
* Default is FALSE
* @param keepOriginalPermission The file will be set as the permission from the entry if this is true.
* Default is FALSE
*/
extractAllTo: function (/**String*/ targetPath, /**Boolean*/ overwrite, /**Boolean*/ keepOriginalPermission, /*String, Buffer*/ pass) {
overwrite = get_Bool(overwrite, false);
pass = get_Str(keepOriginalPermission, pass);
keepOriginalPermission = get_Bool(keepOriginalPermission, false);
if (!_zip) {
throw new Error(Utils.Errors.NO_ZIP);
}
_zip.entries.forEach(function (entry) {
var entryName = sanitize(targetPath, canonical(entry.entryName.toString()));
if (entry.isDirectory) {
filetools.makeDir(entryName);
return;
}
var content = entry.getData(pass);
if (!content) {
throw new Error(Utils.Errors.CANT_EXTRACT_FILE);
}
// The reverse operation for attr depend on method addFile()
const fileAttr = keepOriginalPermission ? entry.header.fileAttr : undefined;
filetools.writeFileTo(entryName, content, overwrite, fileAttr);
try {
filetools.fs.utimesSync(entryName, entry.header.time, entry.header.time);
} catch (err) {
throw new Error(Utils.Errors.CANT_EXTRACT_FILE);
}
});
},
/**
* Asynchronous extractAllTo
*
* @param targetPath Target location
* @param overwrite If the file already exists at the target path, the file will be overwriten if this is true.
* Default is FALSE
* @param keepOriginalPermission The file will be set as the permission from the entry if this is true.
* Default is FALSE
* @param callback The callback will be executed when all entries are extracted successfully or any error is thrown.
*/
extractAllToAsync: function (/**String*/ targetPath, /**Boolean*/ overwrite, /**Boolean*/ keepOriginalPermission, /**Function*/ callback) {
overwrite = get_Bool(overwrite, false);
if (typeof keepOriginalPermission === "function" && !callback) callback = keepOriginalPermission;
keepOriginalPermission = get_Bool(keepOriginalPermission, false);
if (!callback) {
callback = function (err) {
throw new Error(err);
};
}
if (!_zip) {
callback(new Error(Utils.Errors.NO_ZIP));
return;
}
targetPath = pth.resolve(targetPath);
// convert entryName to
const getPath = (entry) => sanitize(targetPath, pth.normalize(canonical(entry.entryName.toString())));
const getError = (msg, file) => new Error(msg + ': "' + file + '"');
// separate directories from files
const dirEntries = [];
const fileEntries = new Set();
_zip.entries.forEach((e) => {
if (e.isDirectory) {
dirEntries.push(e);
} else {
fileEntries.add(e);
}
});
// Create directory entries first synchronously
// this prevents race condition and assures folders are there before writing files
for (const entry of dirEntries) {
const dirPath = getPath(entry);
// The reverse operation for attr depend on method addFile()
const dirAttr = keepOriginalPermission ? entry.header.fileAttr : undefined;
try {
filetools.makeDir(dirPath);
if (dirAttr) filetools.fs.chmodSync(dirPath, dirAttr);
// in unix timestamp will change if files are later added to folder, but still
filetools.fs.utimesSync(dirPath, entry.header.time, entry.header.time);
} catch (er) {
callback(getError("Unable to create folder", dirPath));
}
}
// callback wrapper, for some house keeping
const done = () => {
if (fileEntries.size === 0) {
callback();
}
};
// Extract file entries asynchronously
for (const entry of fileEntries.values()) {
const entryName = pth.normalize(canonical(entry.entryName.toString()));
const filePath = sanitize(targetPath, entryName);
entry.getDataAsync(function (content, err_1) {
if (err_1) {
callback(new Error(err_1));
return;
}
if (!content) {
callback(new Error(Utils.Errors.CANT_EXTRACT_FILE));
} else {
// The reverse operation for attr depend on method addFile()
const fileAttr = keepOriginalPermission ? entry.header.fileAttr : undefined;
filetools.writeFileToAsync(filePath, content, overwrite, fileAttr, function (succ) {
if (!succ) {
callback(getError("Unable to write file", filePath));
return;
}
filetools.fs.utimes(filePath, entry.header.time, entry.header.time, function (err_2) {
if (err_2) {
callback(getError("Unable to set times", filePath));
return;
}
fileEntries.delete(entry);
// call the callback if it was last entry
done();
});
});
}
});
}
// call the callback if fileEntries was empty
done();
},
/**
* Writes the newly created zip file to disk at the specified location or if a zip was opened and no ``targetFileName`` is provided, it will overwrite the opened zip
*
* @param targetFileName
* @param callback
*/
writeZip: function (/**String*/ targetFileName, /**Function*/ callback) {
if (arguments.length === 1) {
if (typeof targetFileName === "function") {
callback = targetFileName;
targetFileName = "";
}
}
if (!targetFileName && opts.filename) {
targetFileName = opts.filename;
}
if (!targetFileName) return;
var zipData = _zip.compressToBuffer();
if (zipData) {
var ok = filetools.writeFileTo(targetFileName, zipData, true);
if (typeof callback === "function") callback(!ok ? new Error("failed") : null, "");
}
},
writeZipPromise: function (/**String*/ targetFileName, /* object */ props) {
const { overwrite, perm } = Object.assign({ overwrite: true }, props);
return new Promise((resolve, reject) => {
// find file name
if (!targetFileName && opts.filename) targetFileName = opts.filename;
if (!targetFileName) reject("ADM-ZIP: ZIP File Name Missing");
this.toBufferPromise().then((zipData) => {
const ret = (done) => (done ? resolve(done) : reject("ADM-ZIP: Wasn't able to write zip file"));
filetools.writeFileToAsync(targetFileName, zipData, overwrite, perm, ret);
}, reject);
});
},
toBufferPromise: function () {
return new Promise((resolve, reject) => {
_zip.toAsyncBuffer(resolve, reject);
});
},
/**
* Returns the content of the entire zip file as a Buffer object
*
* @return Buffer
*/
toBuffer: function (/**Function=*/ onSuccess, /**Function=*/ onFail, /**Function=*/ onItemStart, /**Function=*/ onItemEnd) {
this.valueOf = 2;
if (typeof onSuccess === "function") {
_zip.toAsyncBuffer(onSuccess, onFail, onItemStart, onItemEnd);
return null;
}
return _zip.compressToBuffer();
}
};
};

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node_modules/adm-zip/headers/entryHeader.js generated vendored Normal file
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var Utils = require("../util"),
Constants = Utils.Constants;
/* The central directory file header */
module.exports = function () {
var _verMade = 20, // v2.0
_version = 10, // v1.0
_flags = 0,
_method = 0,
_time = 0,
_crc = 0,
_compressedSize = 0,
_size = 0,
_fnameLen = 0,
_extraLen = 0,
_comLen = 0,
_diskStart = 0,
_inattr = 0,
_attr = 0,
_offset = 0;
_verMade |= Utils.isWin ? 0x0a00 : 0x0300;
// Set EFS flag since filename and comment fields are all by default encoded using UTF-8.
// Without it file names may be corrupted for other apps when file names use unicode chars
_flags |= Constants.FLG_EFS;
var _dataHeader = {};
function setTime(val) {
val = new Date(val);
_time =
(((val.getFullYear() - 1980) & 0x7f) << 25) | // b09-16 years from 1980
((val.getMonth() + 1) << 21) | // b05-08 month
(val.getDate() << 16) | // b00-04 hour
// 2 bytes time
(val.getHours() << 11) | // b11-15 hour
(val.getMinutes() << 5) | // b05-10 minute
(val.getSeconds() >> 1); // b00-04 seconds divided by 2
}
setTime(+new Date());
return {
get made() {
return _verMade;
},
set made(val) {
_verMade = val;
},
get version() {
return _version;
},
set version(val) {
_version = val;
},
get flags() {
return _flags;
},
set flags(val) {
_flags = val;
},
get method() {
return _method;
},
set method(val) {
switch (val) {
case Constants.STORED:
this.version = 10;
case Constants.DEFLATED:
default:
this.version = 20;
}
_method = val;
},
get time() {
return new Date(((_time >> 25) & 0x7f) + 1980, ((_time >> 21) & 0x0f) - 1, (_time >> 16) & 0x1f, (_time >> 11) & 0x1f, (_time >> 5) & 0x3f, (_time & 0x1f) << 1);
},
set time(val) {
setTime(val);
},
get crc() {
return _crc;
},
set crc(val) {
_crc = Math.max(0, val) >>> 0;
},
get compressedSize() {
return _compressedSize;
},
set compressedSize(val) {
_compressedSize = Math.max(0, val) >>> 0;
},
get size() {
return _size;
},
set size(val) {
_size = Math.max(0, val) >>> 0;
},
get fileNameLength() {
return _fnameLen;
},
set fileNameLength(val) {
_fnameLen = val;
},
get extraLength() {
return _extraLen;
},
set extraLength(val) {
_extraLen = val;
},
get commentLength() {
return _comLen;
},
set commentLength(val) {
_comLen = val;
},
get diskNumStart() {
return _diskStart;
},
set diskNumStart(val) {
_diskStart = Math.max(0, val) >>> 0;
},
get inAttr() {
return _inattr;
},
set inAttr(val) {
_inattr = Math.max(0, val) >>> 0;
},
get attr() {
return _attr;
},
set attr(val) {
_attr = Math.max(0, val) >>> 0;
},
// get Unix file permissions
get fileAttr() {
return _attr ? (((_attr >>> 0) | 0) >> 16) & 0xfff : 0;
},
get offset() {
return _offset;
},
set offset(val) {
_offset = Math.max(0, val) >>> 0;
},
get encripted() {
return (_flags & 1) === 1;
},
get entryHeaderSize() {
return Constants.CENHDR + _fnameLen + _extraLen + _comLen;
},
get realDataOffset() {
return _offset + Constants.LOCHDR + _dataHeader.fnameLen + _dataHeader.extraLen;
},
get dataHeader() {
return _dataHeader;
},
loadDataHeaderFromBinary: function (/*Buffer*/ input) {
var data = input.slice(_offset, _offset + Constants.LOCHDR);
// 30 bytes and should start with "PK\003\004"
if (data.readUInt32LE(0) !== Constants.LOCSIG) {
throw new Error(Utils.Errors.INVALID_LOC);
}
_dataHeader = {
// version needed to extract
version: data.readUInt16LE(Constants.LOCVER),
// general purpose bit flag
flags: data.readUInt16LE(Constants.LOCFLG),
// compression method
method: data.readUInt16LE(Constants.LOCHOW),
// modification time (2 bytes time, 2 bytes date)
time: data.readUInt32LE(Constants.LOCTIM),
// uncompressed file crc-32 value
crc: data.readUInt32LE(Constants.LOCCRC),
// compressed size
compressedSize: data.readUInt32LE(Constants.LOCSIZ),
// uncompressed size
size: data.readUInt32LE(Constants.LOCLEN),
// filename length
fnameLen: data.readUInt16LE(Constants.LOCNAM),
// extra field length
extraLen: data.readUInt16LE(Constants.LOCEXT)
};
},
loadFromBinary: function (/*Buffer*/ data) {
// data should be 46 bytes and start with "PK 01 02"
if (data.length !== Constants.CENHDR || data.readUInt32LE(0) !== Constants.CENSIG) {
throw new Error(Utils.Errors.INVALID_CEN);
}
// version made by
_verMade = data.readUInt16LE(Constants.CENVEM);
// version needed to extract
_version = data.readUInt16LE(Constants.CENVER);
// encrypt, decrypt flags
_flags = data.readUInt16LE(Constants.CENFLG);
// compression method
_method = data.readUInt16LE(Constants.CENHOW);
// modification time (2 bytes time, 2 bytes date)
_time = data.readUInt32LE(Constants.CENTIM);
// uncompressed file crc-32 value
_crc = data.readUInt32LE(Constants.CENCRC);
// compressed size
_compressedSize = data.readUInt32LE(Constants.CENSIZ);
// uncompressed size
_size = data.readUInt32LE(Constants.CENLEN);
// filename length
_fnameLen = data.readUInt16LE(Constants.CENNAM);
// extra field length
_extraLen = data.readUInt16LE(Constants.CENEXT);
// file comment length
_comLen = data.readUInt16LE(Constants.CENCOM);
// volume number start
_diskStart = data.readUInt16LE(Constants.CENDSK);
// internal file attributes
_inattr = data.readUInt16LE(Constants.CENATT);
// external file attributes
_attr = data.readUInt32LE(Constants.CENATX);
// LOC header offset
_offset = data.readUInt32LE(Constants.CENOFF);
},
dataHeaderToBinary: function () {
// LOC header size (30 bytes)
var data = Buffer.alloc(Constants.LOCHDR);
// "PK\003\004"
data.writeUInt32LE(Constants.LOCSIG, 0);
// version needed to extract
data.writeUInt16LE(_version, Constants.LOCVER);
// general purpose bit flag
data.writeUInt16LE(_flags, Constants.LOCFLG);
// compression method
data.writeUInt16LE(_method, Constants.LOCHOW);
// modification time (2 bytes time, 2 bytes date)
data.writeUInt32LE(_time, Constants.LOCTIM);
// uncompressed file crc-32 value
data.writeUInt32LE(_crc, Constants.LOCCRC);
// compressed size
data.writeUInt32LE(_compressedSize, Constants.LOCSIZ);
// uncompressed size
data.writeUInt32LE(_size, Constants.LOCLEN);
// filename length
data.writeUInt16LE(_fnameLen, Constants.LOCNAM);
// extra field length
data.writeUInt16LE(_extraLen, Constants.LOCEXT);
return data;
},
entryHeaderToBinary: function () {
// CEN header size (46 bytes)
var data = Buffer.alloc(Constants.CENHDR + _fnameLen + _extraLen + _comLen);
// "PK\001\002"
data.writeUInt32LE(Constants.CENSIG, 0);
// version made by
data.writeUInt16LE(_verMade, Constants.CENVEM);
// version needed to extract
data.writeUInt16LE(_version, Constants.CENVER);
// encrypt, decrypt flags
data.writeUInt16LE(_flags, Constants.CENFLG);
// compression method
data.writeUInt16LE(_method, Constants.CENHOW);
// modification time (2 bytes time, 2 bytes date)
data.writeUInt32LE(_time, Constants.CENTIM);
// uncompressed file crc-32 value
data.writeUInt32LE(_crc, Constants.CENCRC);
// compressed size
data.writeUInt32LE(_compressedSize, Constants.CENSIZ);
// uncompressed size
data.writeUInt32LE(_size, Constants.CENLEN);
// filename length
data.writeUInt16LE(_fnameLen, Constants.CENNAM);
// extra field length
data.writeUInt16LE(_extraLen, Constants.CENEXT);
// file comment length
data.writeUInt16LE(_comLen, Constants.CENCOM);
// volume number start
data.writeUInt16LE(_diskStart, Constants.CENDSK);
// internal file attributes
data.writeUInt16LE(_inattr, Constants.CENATT);
// external file attributes
data.writeUInt32LE(_attr, Constants.CENATX);
// LOC header offset
data.writeUInt32LE(_offset, Constants.CENOFF);
// fill all with
data.fill(0x00, Constants.CENHDR);
return data;
},
toJSON: function () {
const bytes = function (nr) {
return nr + " bytes";
};
return {
made: _verMade,
version: _version,
flags: _flags,
method: Utils.methodToString(_method),
time: this.time,
crc: "0x" + _crc.toString(16).toUpperCase(),
compressedSize: bytes(_compressedSize),
size: bytes(_size),
fileNameLength: bytes(_fnameLen),
extraLength: bytes(_extraLen),
commentLength: bytes(_comLen),
diskNumStart: _diskStart,
inAttr: _inattr,
attr: _attr,
offset: _offset,
entryHeaderSize: bytes(Constants.CENHDR + _fnameLen + _extraLen + _comLen)
};
},
toString: function () {
return JSON.stringify(this.toJSON(), null, "\t");
}
};
};

2
node_modules/adm-zip/headers/index.js generated vendored Normal file
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exports.EntryHeader = require("./entryHeader");
exports.MainHeader = require("./mainHeader");

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node_modules/adm-zip/headers/mainHeader.js generated vendored Normal file
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var Utils = require("../util"),
Constants = Utils.Constants;
/* The entries in the end of central directory */
module.exports = function () {
var _volumeEntries = 0,
_totalEntries = 0,
_size = 0,
_offset = 0,
_commentLength = 0;
return {
get diskEntries() {
return _volumeEntries;
},
set diskEntries(/*Number*/ val) {
_volumeEntries = _totalEntries = val;
},
get totalEntries() {
return _totalEntries;
},
set totalEntries(/*Number*/ val) {
_totalEntries = _volumeEntries = val;
},
get size() {
return _size;
},
set size(/*Number*/ val) {
_size = val;
},
get offset() {
return _offset;
},
set offset(/*Number*/ val) {
_offset = val;
},
get commentLength() {
return _commentLength;
},
set commentLength(/*Number*/ val) {
_commentLength = val;
},
get mainHeaderSize() {
return Constants.ENDHDR + _commentLength;
},
loadFromBinary: function (/*Buffer*/ data) {
// data should be 22 bytes and start with "PK 05 06"
// or be 56+ bytes and start with "PK 06 06" for Zip64
if (
(data.length !== Constants.ENDHDR || data.readUInt32LE(0) !== Constants.ENDSIG) &&
(data.length < Constants.ZIP64HDR || data.readUInt32LE(0) !== Constants.ZIP64SIG)
) {
throw new Error(Utils.Errors.INVALID_END);
}
if (data.readUInt32LE(0) === Constants.ENDSIG) {
// number of entries on this volume
_volumeEntries = data.readUInt16LE(Constants.ENDSUB);
// total number of entries
_totalEntries = data.readUInt16LE(Constants.ENDTOT);
// central directory size in bytes
_size = data.readUInt32LE(Constants.ENDSIZ);
// offset of first CEN header
_offset = data.readUInt32LE(Constants.ENDOFF);
// zip file comment length
_commentLength = data.readUInt16LE(Constants.ENDCOM);
} else {
// number of entries on this volume
_volumeEntries = Utils.readBigUInt64LE(data, Constants.ZIP64SUB);
// total number of entries
_totalEntries = Utils.readBigUInt64LE(data, Constants.ZIP64TOT);
// central directory size in bytes
_size = Utils.readBigUInt64LE(data, Constants.ZIP64SIZE);
// offset of first CEN header
_offset = Utils.readBigUInt64LE(data, Constants.ZIP64OFF);
_commentLength = 0;
}
},
toBinary: function () {
var b = Buffer.alloc(Constants.ENDHDR + _commentLength);
// "PK 05 06" signature
b.writeUInt32LE(Constants.ENDSIG, 0);
b.writeUInt32LE(0, 4);
// number of entries on this volume
b.writeUInt16LE(_volumeEntries, Constants.ENDSUB);
// total number of entries
b.writeUInt16LE(_totalEntries, Constants.ENDTOT);
// central directory size in bytes
b.writeUInt32LE(_size, Constants.ENDSIZ);
// offset of first CEN header
b.writeUInt32LE(_offset, Constants.ENDOFF);
// zip file comment length
b.writeUInt16LE(_commentLength, Constants.ENDCOM);
// fill comment memory with spaces so no garbage is left there
b.fill(" ", Constants.ENDHDR);
return b;
},
toJSON: function () {
// creates 0x0000 style output
const offset = function (nr, len) {
let offs = nr.toString(16).toUpperCase();
while (offs.length < len) offs = "0" + offs;
return "0x" + offs;
};
return {
diskEntries: _volumeEntries,
totalEntries: _totalEntries,
size: _size + " bytes",
offset: offset(_offset, 4),
commentLength: _commentLength
};
},
toString: function () {
return JSON.stringify(this.toJSON(), null, "\t");
}
};
};
// Misspelled

33
node_modules/adm-zip/methods/deflater.js generated vendored Normal file
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module.exports = function (/*Buffer*/ inbuf) {
var zlib = require("zlib");
var opts = { chunkSize: (parseInt(inbuf.length / 1024) + 1) * 1024 };
return {
deflate: function () {
return zlib.deflateRawSync(inbuf, opts);
},
deflateAsync: function (/*Function*/ callback) {
var tmp = zlib.createDeflateRaw(opts),
parts = [],
total = 0;
tmp.on("data", function (data) {
parts.push(data);
total += data.length;
});
tmp.on("end", function () {
var buf = Buffer.alloc(total),
written = 0;
buf.fill(0);
for (var i = 0; i < parts.length; i++) {
var part = parts[i];
part.copy(buf, written);
written += part.length;
}
callback && callback(buf);
});
tmp.end(inbuf);
}
};
};

3
node_modules/adm-zip/methods/index.js generated vendored Normal file
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exports.Deflater = require("./deflater");
exports.Inflater = require("./inflater");
exports.ZipCrypto = require("./zipcrypto");

31
node_modules/adm-zip/methods/inflater.js generated vendored Normal file
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module.exports = function (/*Buffer*/ inbuf) {
var zlib = require("zlib");
return {
inflate: function () {
return zlib.inflateRawSync(inbuf);
},
inflateAsync: function (/*Function*/ callback) {
var tmp = zlib.createInflateRaw(),
parts = [],
total = 0;
tmp.on("data", function (data) {
parts.push(data);
total += data.length;
});
tmp.on("end", function () {
var buf = Buffer.alloc(total),
written = 0;
buf.fill(0);
for (var i = 0; i < parts.length; i++) {
var part = parts[i];
part.copy(buf, written);
written += part.length;
}
callback && callback(buf);
});
tmp.end(inbuf);
}
};
};

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node_modules/adm-zip/methods/zipcrypto.js generated vendored Normal file
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"use strict";
// node crypt, we use it for generate salt
// eslint-disable-next-line node/no-unsupported-features/node-builtins
const { randomFillSync } = require("crypto");
// generate CRC32 lookup table
const crctable = new Uint32Array(256).map((t, crc) => {
for (let j = 0; j < 8; j++) {
if (0 !== (crc & 1)) {
crc = (crc >>> 1) ^ 0xedb88320;
} else {
crc >>>= 1;
}
}
return crc >>> 0;
});
// C-style uInt32 Multiply (discards higher bits, when JS multiply discards lower bits)
const uMul = (a, b) => Math.imul(a, b) >>> 0;
// crc32 byte single update (actually same function is part of utils.crc32 function :) )
const crc32update = (pCrc32, bval) => {
return crctable[(pCrc32 ^ bval) & 0xff] ^ (pCrc32 >>> 8);
};
// function for generating salt for encrytion header
const genSalt = () => {
if ("function" === typeof randomFillSync) {
return randomFillSync(Buffer.alloc(12));
} else {
// fallback if function is not defined
return genSalt.node();
}
};
// salt generation with node random function (mainly as fallback)
genSalt.node = () => {
const salt = Buffer.alloc(12);
const len = salt.length;
for (let i = 0; i < len; i++) salt[i] = (Math.random() * 256) & 0xff;
return salt;
};
// general config
const config = {
genSalt
};
// Class Initkeys handles same basic ops with keys
function Initkeys(pw) {
const pass = Buffer.isBuffer(pw) ? pw : Buffer.from(pw);
this.keys = new Uint32Array([0x12345678, 0x23456789, 0x34567890]);
for (let i = 0; i < pass.length; i++) {
this.updateKeys(pass[i]);
}
}
Initkeys.prototype.updateKeys = function (byteValue) {
const keys = this.keys;
keys[0] = crc32update(keys[0], byteValue);
keys[1] += keys[0] & 0xff;
keys[1] = uMul(keys[1], 134775813) + 1;
keys[2] = crc32update(keys[2], keys[1] >>> 24);
return byteValue;
};
Initkeys.prototype.next = function () {
const k = (this.keys[2] | 2) >>> 0; // key
return (uMul(k, k ^ 1) >> 8) & 0xff; // decode
};
function make_decrypter(/*Buffer*/ pwd) {
// 1. Stage initialize key
const keys = new Initkeys(pwd);
// return decrypter function
return function (/*Buffer*/ data) {
// result - we create new Buffer for results
const result = Buffer.alloc(data.length);
let pos = 0;
// process input data
for (let c of data) {
//c ^= keys.next();
//result[pos++] = c; // decode & Save Value
result[pos++] = keys.updateKeys(c ^ keys.next()); // update keys with decoded byte
}
return result;
};
}
function make_encrypter(/*Buffer*/ pwd) {
// 1. Stage initialize key
const keys = new Initkeys(pwd);
// return encrypting function, result and pos is here so we dont have to merge buffers later
return function (/*Buffer*/ data, /*Buffer*/ result, /* Number */ pos = 0) {
// result - we create new Buffer for results
if (!result) result = Buffer.alloc(data.length);
// process input data
for (let c of data) {
const k = keys.next(); // save key byte
result[pos++] = c ^ k; // save val
keys.updateKeys(c); // update keys with decoded byte
}
return result;
};
}
function decrypt(/*Buffer*/ data, /*Object*/ header, /*String, Buffer*/ pwd) {
if (!data || !Buffer.isBuffer(data) || data.length < 12) {
return Buffer.alloc(0);
}
// 1. We Initialize and generate decrypting function
const decrypter = make_decrypter(pwd);
// 2. decrypt salt what is always 12 bytes and is a part of file content
const salt = decrypter(data.slice(0, 12));
// 3. does password meet expectations
if (salt[11] !== header.crc >>> 24) {
throw "ADM-ZIP: Wrong Password";
}
// 4. decode content
return decrypter(data.slice(12));
}
// lets add way to populate salt, NOT RECOMMENDED for production but maybe useful for testing general functionality
function _salter(data) {
if (Buffer.isBuffer(data) && data.length >= 12) {
// be aware - currently salting buffer data is modified
config.genSalt = function () {
return data.slice(0, 12);
};
} else if (data === "node") {
// test salt generation with node random function
config.genSalt = genSalt.node;
} else {
// if value is not acceptable config gets reset.
config.genSalt = genSalt;
}
}
function encrypt(/*Buffer*/ data, /*Object*/ header, /*String, Buffer*/ pwd, /*Boolean*/ oldlike = false) {
// 1. test data if data is not Buffer we make buffer from it
if (data == null) data = Buffer.alloc(0);
// if data is not buffer be make buffer from it
if (!Buffer.isBuffer(data)) data = Buffer.from(data.toString());
// 2. We Initialize and generate encrypting function
const encrypter = make_encrypter(pwd);
// 3. generate salt (12-bytes of random data)
const salt = config.genSalt();
salt[11] = (header.crc >>> 24) & 0xff;
// old implementations (before PKZip 2.04g) used two byte check
if (oldlike) salt[10] = (header.crc >>> 16) & 0xff;
// 4. create output
const result = Buffer.alloc(data.length + 12);
encrypter(salt, result);
// finally encode content
return encrypter(data, result, 12);
}
module.exports = { decrypt, encrypt, _salter };

48
node_modules/adm-zip/package.json generated vendored Normal file
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{
"name": "adm-zip",
"version": "0.5.10",
"description": "Javascript implementation of zip for nodejs with support for electron original-fs. Allows user to create or extract zip files both in memory or to/from disk",
"scripts": {
"test": "mocha -R spec",
"test:format": "npm run format:prettier:raw -- --check",
"format": "npm run format:prettier",
"format:prettier": "npm run format:prettier:raw -- --write",
"format:prettier:raw": "prettier \"**/*.{js,yml,json}\""
},
"keywords": [
"zip",
"methods",
"archive",
"unzip"
],
"homepage": "https://github.com/cthackers/adm-zip",
"author": "Nasca Iacob <sy@another-d-mention.ro> (https://github.com/cthackers)",
"bugs": {
"email": "sy@another-d-mention.ro",
"url": "https://github.com/cthackers/adm-zip/issues"
},
"license": "MIT",
"files": [
"adm-zip.js",
"headers",
"methods",
"util",
"zipEntry.js",
"zipFile.js",
"LICENSE"
],
"main": "adm-zip.js",
"repository": {
"type": "git",
"url": "https://github.com/cthackers/adm-zip.git"
},
"engines": {
"node": ">=6.0"
},
"devDependencies": {
"chai": "^4.3.4",
"mocha": "^10.2.0",
"prettier": "^2.2.1",
"rimraf": "^3.0.2"
}
}

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node_modules/adm-zip/util/constants.js generated vendored Normal file
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module.exports = {
/* The local file header */
LOCHDR : 30, // LOC header size
LOCSIG : 0x04034b50, // "PK\003\004"
LOCVER : 4, // version needed to extract
LOCFLG : 6, // general purpose bit flag
LOCHOW : 8, // compression method
LOCTIM : 10, // modification time (2 bytes time, 2 bytes date)
LOCCRC : 14, // uncompressed file crc-32 value
LOCSIZ : 18, // compressed size
LOCLEN : 22, // uncompressed size
LOCNAM : 26, // filename length
LOCEXT : 28, // extra field length
/* The Data descriptor */
EXTSIG : 0x08074b50, // "PK\007\008"
EXTHDR : 16, // EXT header size
EXTCRC : 4, // uncompressed file crc-32 value
EXTSIZ : 8, // compressed size
EXTLEN : 12, // uncompressed size
/* The central directory file header */
CENHDR : 46, // CEN header size
CENSIG : 0x02014b50, // "PK\001\002"
CENVEM : 4, // version made by
CENVER : 6, // version needed to extract
CENFLG : 8, // encrypt, decrypt flags
CENHOW : 10, // compression method
CENTIM : 12, // modification time (2 bytes time, 2 bytes date)
CENCRC : 16, // uncompressed file crc-32 value
CENSIZ : 20, // compressed size
CENLEN : 24, // uncompressed size
CENNAM : 28, // filename length
CENEXT : 30, // extra field length
CENCOM : 32, // file comment length
CENDSK : 34, // volume number start
CENATT : 36, // internal file attributes
CENATX : 38, // external file attributes (host system dependent)
CENOFF : 42, // LOC header offset
/* The entries in the end of central directory */
ENDHDR : 22, // END header size
ENDSIG : 0x06054b50, // "PK\005\006"
ENDSUB : 8, // number of entries on this disk
ENDTOT : 10, // total number of entries
ENDSIZ : 12, // central directory size in bytes
ENDOFF : 16, // offset of first CEN header
ENDCOM : 20, // zip file comment length
END64HDR : 20, // zip64 END header size
END64SIG : 0x07064b50, // zip64 Locator signature, "PK\006\007"
END64START : 4, // number of the disk with the start of the zip64
END64OFF : 8, // relative offset of the zip64 end of central directory
END64NUMDISKS : 16, // total number of disks
ZIP64SIG : 0x06064b50, // zip64 signature, "PK\006\006"
ZIP64HDR : 56, // zip64 record minimum size
ZIP64LEAD : 12, // leading bytes at the start of the record, not counted by the value stored in ZIP64SIZE
ZIP64SIZE : 4, // zip64 size of the central directory record
ZIP64VEM : 12, // zip64 version made by
ZIP64VER : 14, // zip64 version needed to extract
ZIP64DSK : 16, // zip64 number of this disk
ZIP64DSKDIR : 20, // number of the disk with the start of the record directory
ZIP64SUB : 24, // number of entries on this disk
ZIP64TOT : 32, // total number of entries
ZIP64SIZB : 40, // zip64 central directory size in bytes
ZIP64OFF : 48, // offset of start of central directory with respect to the starting disk number
ZIP64EXTRA : 56, // extensible data sector
/* Compression methods */
STORED : 0, // no compression
SHRUNK : 1, // shrunk
REDUCED1 : 2, // reduced with compression factor 1
REDUCED2 : 3, // reduced with compression factor 2
REDUCED3 : 4, // reduced with compression factor 3
REDUCED4 : 5, // reduced with compression factor 4
IMPLODED : 6, // imploded
// 7 reserved for Tokenizing compression algorithm
DEFLATED : 8, // deflated
ENHANCED_DEFLATED: 9, // enhanced deflated
PKWARE : 10,// PKWare DCL imploded
// 11 reserved by PKWARE
BZIP2 : 12, // compressed using BZIP2
// 13 reserved by PKWARE
LZMA : 14, // LZMA
// 15-17 reserved by PKWARE
IBM_TERSE : 18, // compressed using IBM TERSE
IBM_LZ77 : 19, // IBM LZ77 z
AES_ENCRYPT : 99, // WinZIP AES encryption method
/* General purpose bit flag */
// values can obtained with expression 2**bitnr
FLG_ENC : 1, // Bit 0: encrypted file
FLG_COMP1 : 2, // Bit 1, compression option
FLG_COMP2 : 4, // Bit 2, compression option
FLG_DESC : 8, // Bit 3, data descriptor
FLG_ENH : 16, // Bit 4, enhanced deflating
FLG_PATCH : 32, // Bit 5, indicates that the file is compressed patched data.
FLG_STR : 64, // Bit 6, strong encryption (patented)
// Bits 7-10: Currently unused.
FLG_EFS : 2048, // Bit 11: Language encoding flag (EFS)
// Bit 12: Reserved by PKWARE for enhanced compression.
// Bit 13: encrypted the Central Directory (patented).
// Bits 14-15: Reserved by PKWARE.
FLG_MSK : 4096, // mask header values
/* Load type */
FILE : 2,
BUFFER : 1,
NONE : 0,
/* 4.5 Extensible data fields */
EF_ID : 0,
EF_SIZE : 2,
/* Header IDs */
ID_ZIP64 : 0x0001,
ID_AVINFO : 0x0007,
ID_PFS : 0x0008,
ID_OS2 : 0x0009,
ID_NTFS : 0x000a,
ID_OPENVMS : 0x000c,
ID_UNIX : 0x000d,
ID_FORK : 0x000e,
ID_PATCH : 0x000f,
ID_X509_PKCS7 : 0x0014,
ID_X509_CERTID_F : 0x0015,
ID_X509_CERTID_C : 0x0016,
ID_STRONGENC : 0x0017,
ID_RECORD_MGT : 0x0018,
ID_X509_PKCS7_RL : 0x0019,
ID_IBM1 : 0x0065,
ID_IBM2 : 0x0066,
ID_POSZIP : 0x4690,
EF_ZIP64_OR_32 : 0xffffffff,
EF_ZIP64_OR_16 : 0xffff,
EF_ZIP64_SUNCOMP : 0,
EF_ZIP64_SCOMP : 8,
EF_ZIP64_RHO : 16,
EF_ZIP64_DSN : 24
};

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node_modules/adm-zip/util/errors.js generated vendored Normal file
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module.exports = {
/* Header error messages */
INVALID_LOC: "Invalid LOC header (bad signature)",
INVALID_CEN: "Invalid CEN header (bad signature)",
INVALID_END: "Invalid END header (bad signature)",
/* ZipEntry error messages*/
NO_DATA: "Nothing to decompress",
BAD_CRC: "CRC32 checksum failed",
FILE_IN_THE_WAY: "There is a file in the way: %s",
UNKNOWN_METHOD: "Invalid/unsupported compression method",
/* Inflater error messages */
AVAIL_DATA: "inflate::Available inflate data did not terminate",
INVALID_DISTANCE: "inflate::Invalid literal/length or distance code in fixed or dynamic block",
TO_MANY_CODES: "inflate::Dynamic block code description: too many length or distance codes",
INVALID_REPEAT_LEN: "inflate::Dynamic block code description: repeat more than specified lengths",
INVALID_REPEAT_FIRST: "inflate::Dynamic block code description: repeat lengths with no first length",
INCOMPLETE_CODES: "inflate::Dynamic block code description: code lengths codes incomplete",
INVALID_DYN_DISTANCE: "inflate::Dynamic block code description: invalid distance code lengths",
INVALID_CODES_LEN: "inflate::Dynamic block code description: invalid literal/length code lengths",
INVALID_STORE_BLOCK: "inflate::Stored block length did not match one's complement",
INVALID_BLOCK_TYPE: "inflate::Invalid block type (type == 3)",
/* ADM-ZIP error messages */
CANT_EXTRACT_FILE: "Could not extract the file",
CANT_OVERRIDE: "Target file already exists",
NO_ZIP: "No zip file was loaded",
NO_ENTRY: "Entry doesn't exist",
DIRECTORY_CONTENT_ERROR: "A directory cannot have content",
FILE_NOT_FOUND: "File not found: %s",
NOT_IMPLEMENTED: "Not implemented",
INVALID_FILENAME: "Invalid filename",
INVALID_FORMAT: "Invalid or unsupported zip format. No END header found"
};

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node_modules/adm-zip/util/fattr.js generated vendored Normal file
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const fs = require("./fileSystem").require();
const pth = require("path");
fs.existsSync = fs.existsSync || pth.existsSync;
module.exports = function (/*String*/ path) {
var _path = path || "",
_obj = newAttr(),
_stat = null;
function newAttr() {
return {
directory: false,
readonly: false,
hidden: false,
executable: false,
mtime: 0,
atime: 0
};
}
if (_path && fs.existsSync(_path)) {
_stat = fs.statSync(_path);
_obj.directory = _stat.isDirectory();
_obj.mtime = _stat.mtime;
_obj.atime = _stat.atime;
_obj.executable = (0o111 & _stat.mode) !== 0; // file is executable who ever har right not just owner
_obj.readonly = (0o200 & _stat.mode) === 0; // readonly if owner has no write right
_obj.hidden = pth.basename(_path)[0] === ".";
} else {
console.warn("Invalid path: " + _path);
}
return {
get directory() {
return _obj.directory;
},
get readOnly() {
return _obj.readonly;
},
get hidden() {
return _obj.hidden;
},
get mtime() {
return _obj.mtime;
},
get atime() {
return _obj.atime;
},
get executable() {
return _obj.executable;
},
decodeAttributes: function () {},
encodeAttributes: function () {},
toJSON: function () {
return {
path: _path,
isDirectory: _obj.directory,
isReadOnly: _obj.readonly,
isHidden: _obj.hidden,
isExecutable: _obj.executable,
mTime: _obj.mtime,
aTime: _obj.atime
};
},
toString: function () {
return JSON.stringify(this.toJSON(), null, "\t");
}
};
};

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node_modules/adm-zip/util/fileSystem.js generated vendored Normal file
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exports.require = function () {
if (typeof process === "object" && process.versions && process.versions["electron"]) {
try {
const originalFs = require("original-fs");
if (Object.keys(originalFs).length > 0) {
return originalFs;
}
} catch (e) {}
}
return require("fs");
};

4
node_modules/adm-zip/util/index.js generated vendored Normal file
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module.exports = require("./utils");
module.exports.Constants = require("./constants");
module.exports.Errors = require("./errors");
module.exports.FileAttr = require("./fattr");

247
node_modules/adm-zip/util/utils.js generated vendored Normal file
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const fsystem = require("./fileSystem").require();
const pth = require("path");
const Constants = require("./constants");
const Errors = require("./errors");
const isWin = typeof process === "object" && "win32" === process.platform;
const is_Obj = (obj) => obj && typeof obj === "object";
// generate CRC32 lookup table
const crcTable = new Uint32Array(256).map((t, c) => {
for (let k = 0; k < 8; k++) {
if ((c & 1) !== 0) {
c = 0xedb88320 ^ (c >>> 1);
} else {
c >>>= 1;
}
}
return c >>> 0;
});
// UTILS functions
function Utils(opts) {
this.sep = pth.sep;
this.fs = fsystem;
if (is_Obj(opts)) {
// custom filesystem
if (is_Obj(opts.fs) && typeof opts.fs.statSync === "function") {
this.fs = opts.fs;
}
}
}
module.exports = Utils;
// INSTANCED functions
Utils.prototype.makeDir = function (/*String*/ folder) {
const self = this;
// Sync - make directories tree
function mkdirSync(/*String*/ fpath) {
let resolvedPath = fpath.split(self.sep)[0];
fpath.split(self.sep).forEach(function (name) {
if (!name || name.substr(-1, 1) === ":") return;
resolvedPath += self.sep + name;
var stat;
try {
stat = self.fs.statSync(resolvedPath);
} catch (e) {
self.fs.mkdirSync(resolvedPath);
}
if (stat && stat.isFile()) throw Errors.FILE_IN_THE_WAY.replace("%s", resolvedPath);
});
}
mkdirSync(folder);
};
Utils.prototype.writeFileTo = function (/*String*/ path, /*Buffer*/ content, /*Boolean*/ overwrite, /*Number*/ attr) {
const self = this;
if (self.fs.existsSync(path)) {
if (!overwrite) return false; // cannot overwrite
var stat = self.fs.statSync(path);
if (stat.isDirectory()) {
return false;
}
}
var folder = pth.dirname(path);
if (!self.fs.existsSync(folder)) {
self.makeDir(folder);
}
var fd;
try {
fd = self.fs.openSync(path, "w", 438); // 0666
} catch (e) {
self.fs.chmodSync(path, 438);
fd = self.fs.openSync(path, "w", 438);
}
if (fd) {
try {
self.fs.writeSync(fd, content, 0, content.length, 0);
} finally {
self.fs.closeSync(fd);
}
}
self.fs.chmodSync(path, attr || 438);
return true;
};
Utils.prototype.writeFileToAsync = function (/*String*/ path, /*Buffer*/ content, /*Boolean*/ overwrite, /*Number*/ attr, /*Function*/ callback) {
if (typeof attr === "function") {
callback = attr;
attr = undefined;
}
const self = this;
self.fs.exists(path, function (exist) {
if (exist && !overwrite) return callback(false);
self.fs.stat(path, function (err, stat) {
if (exist && stat.isDirectory()) {
return callback(false);
}
var folder = pth.dirname(path);
self.fs.exists(folder, function (exists) {
if (!exists) self.makeDir(folder);
self.fs.open(path, "w", 438, function (err, fd) {
if (err) {
self.fs.chmod(path, 438, function () {
self.fs.open(path, "w", 438, function (err, fd) {
self.fs.write(fd, content, 0, content.length, 0, function () {
self.fs.close(fd, function () {
self.fs.chmod(path, attr || 438, function () {
callback(true);
});
});
});
});
});
} else if (fd) {
self.fs.write(fd, content, 0, content.length, 0, function () {
self.fs.close(fd, function () {
self.fs.chmod(path, attr || 438, function () {
callback(true);
});
});
});
} else {
self.fs.chmod(path, attr || 438, function () {
callback(true);
});
}
});
});
});
});
};
Utils.prototype.findFiles = function (/*String*/ path) {
const self = this;
function findSync(/*String*/ dir, /*RegExp*/ pattern, /*Boolean*/ recursive) {
if (typeof pattern === "boolean") {
recursive = pattern;
pattern = undefined;
}
let files = [];
self.fs.readdirSync(dir).forEach(function (file) {
var path = pth.join(dir, file);
if (self.fs.statSync(path).isDirectory() && recursive) files = files.concat(findSync(path, pattern, recursive));
if (!pattern || pattern.test(path)) {
files.push(pth.normalize(path) + (self.fs.statSync(path).isDirectory() ? self.sep : ""));
}
});
return files;
}
return findSync(path, undefined, true);
};
Utils.prototype.getAttributes = function () {};
Utils.prototype.setAttributes = function () {};
// STATIC functions
// crc32 single update (it is part of crc32)
Utils.crc32update = function (crc, byte) {
return crcTable[(crc ^ byte) & 0xff] ^ (crc >>> 8);
};
Utils.crc32 = function (buf) {
if (typeof buf === "string") {
buf = Buffer.from(buf, "utf8");
}
// Generate crcTable
if (!crcTable.length) genCRCTable();
let len = buf.length;
let crc = ~0;
for (let off = 0; off < len; ) crc = Utils.crc32update(crc, buf[off++]);
// xor and cast as uint32 number
return ~crc >>> 0;
};
Utils.methodToString = function (/*Number*/ method) {
switch (method) {
case Constants.STORED:
return "STORED (" + method + ")";
case Constants.DEFLATED:
return "DEFLATED (" + method + ")";
default:
return "UNSUPPORTED (" + method + ")";
}
};
// removes ".." style path elements
Utils.canonical = function (/*string*/ path) {
if (!path) return "";
// trick normalize think path is absolute
var safeSuffix = pth.posix.normalize("/" + path.split("\\").join("/"));
return pth.join(".", safeSuffix);
};
// make abolute paths taking prefix as root folder
Utils.sanitize = function (/*string*/ prefix, /*string*/ name) {
prefix = pth.resolve(pth.normalize(prefix));
var parts = name.split("/");
for (var i = 0, l = parts.length; i < l; i++) {
var path = pth.normalize(pth.join(prefix, parts.slice(i, l).join(pth.sep)));
if (path.indexOf(prefix) === 0) {
return path;
}
}
return pth.normalize(pth.join(prefix, pth.basename(name)));
};
// converts buffer, Uint8Array, string types to buffer
Utils.toBuffer = function toBuffer(/*buffer, Uint8Array, string*/ input) {
if (Buffer.isBuffer(input)) {
return input;
} else if (input instanceof Uint8Array) {
return Buffer.from(input);
} else {
// expect string all other values are invalid and return empty buffer
return typeof input === "string" ? Buffer.from(input, "utf8") : Buffer.alloc(0);
}
};
Utils.readBigUInt64LE = function (/*Buffer*/ buffer, /*int*/ index) {
var slice = Buffer.from(buffer.slice(index, index + 8));
slice.swap64();
return parseInt(`0x${slice.toString("hex")}`);
};
Utils.isWin = isWin; // Do we have windows system
Utils.crcTable = crcTable;

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node_modules/adm-zip/zipEntry.js generated vendored Normal file
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var Utils = require("./util"),
Headers = require("./headers"),
Constants = Utils.Constants,
Methods = require("./methods");
module.exports = function (/*Buffer*/ input) {
var _entryHeader = new Headers.EntryHeader(),
_entryName = Buffer.alloc(0),
_comment = Buffer.alloc(0),
_isDirectory = false,
uncompressedData = null,
_extra = Buffer.alloc(0);
function getCompressedDataFromZip() {
if (!input || !Buffer.isBuffer(input)) {
return Buffer.alloc(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.dataHeader.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, Buffer*/ pass) {
if (typeof callback === "undefined" && typeof async === "string") {
pass = async;
async = void 0;
}
if (_isDirectory) {
if (async && callback) {
callback(Buffer.alloc(0), Utils.Errors.DIRECTORY_CONTENT_ERROR); //si added error.
}
return Buffer.alloc(0);
}
var compressedData = getCompressedDataFromZip();
if (compressedData.length === 0) {
// File is empty, nothing to decompress.
if (async && callback) callback(compressedData);
return compressedData;
}
if (_entryHeader.encripted) {
if ("string" !== typeof pass && !Buffer.isBuffer(pass)) {
throw new Error("ADM-ZIP: Incompatible password parameter");
}
compressedData = Methods.ZipCrypto.decrypt(compressedData, _entryHeader, pass);
}
var data = Buffer.alloc(_entryHeader.size);
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
throw new Error(Utils.Errors.BAD_CRC);
} else {
//si added otherwise did not seem to return data.
if (async && callback) callback(data);
return data;
}
case Utils.Constants.DEFLATED:
var inflater = new Methods.Inflater(compressedData);
if (!async) {
const result = inflater.inflate(data);
result.copy(data, 0);
if (!crc32OK(data)) {
throw new Error(Utils.Errors.BAD_CRC + " " + _entryName.toString());
}
return data;
} else {
inflater.inflateAsync(function (result) {
result.copy(result, 0);
if (callback) {
if (!crc32OK(result)) {
callback(result, Utils.Errors.BAD_CRC); //si added error
} else {
callback(result);
}
}
});
}
break;
default:
if (async && callback) callback(Buffer.alloc(0), Utils.Errors.UNKNOWN_METHOD);
throw new Error(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 = Buffer.alloc(uncompressedData.length);
uncompressedData.copy(compressedData);
if (async && callback) callback(compressedData);
return compressedData;
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 = Buffer.alloc(data.length);
_entryHeader.compressedSize = data.length;
data.copy(compressedData);
callback && callback(compressedData);
});
}
deflater = null;
break;
}
} else if (async && callback) {
callback(Buffer.alloc(0));
} else {
return Buffer.alloc(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);
_entryHeader.changed = true;
} else {
// folders and blank files should be stored
_entryHeader.method = Utils.Constants.STORED;
}
},
getData: function (pass) {
if (_entryHeader.changed) {
return uncompressedData;
} else {
return decompress(false, null, pass);
}
},
getDataAsync: function (/*Function*/ callback, pass) {
if (_entryHeader.changed) {
callback(uncompressedData);
} else {
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 () {
// 1. create header (buffer)
var header = _entryHeader.entryHeaderToBinary();
var addpos = Utils.Constants.CENHDR;
// 2. add file name
_entryName.copy(header, addpos);
addpos += _entryName.length;
// 3. add extra data
if (_entryHeader.extraLength) {
_extra.copy(header, addpos);
addpos += _entryHeader.extraLength;
}
// 4. add file comment
if (_entryHeader.commentLength) {
_comment.copy(header, addpos);
}
return header;
},
toJSON: function () {
const bytes = function (nr) {
return "<" + ((nr && nr.length + " bytes buffer") || "null") + ">";
};
return {
entryName: this.entryName,
name: this.name,
comment: this.comment,
isDirectory: this.isDirectory,
header: _entryHeader.toJSON(),
compressedData: bytes(input),
data: bytes(uncompressedData)
};
},
toString: function () {
return JSON.stringify(this.toJSON(), null, "\t");
}
};
};

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node_modules/adm-zip/zipFile.js generated vendored Normal file
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const ZipEntry = require("./zipEntry");
const Headers = require("./headers");
const Utils = require("./util");
module.exports = function (/*Buffer|null*/ inBuffer, /** object */ options) {
var entryList = [],
entryTable = {},
_comment = Buffer.alloc(0),
mainHeader = new Headers.MainHeader(),
loadedEntries = false;
// assign options
const opts = Object.assign(Object.create(null), options);
const { noSort } = opts;
if (inBuffer) {
// is a memory buffer
readMainHeader(opts.readEntries);
} else {
// none. is a new file
loadedEntries = true;
}
function iterateEntries(callback) {
const totalEntries = mainHeader.diskEntries; // total number of entries
let index = mainHeader.offset; // offset of first CEN header
for (let i = 0; i < totalEntries; i++) {
let tmp = index;
const entry = new ZipEntry(inBuffer);
entry.header = inBuffer.slice(tmp, (tmp += Utils.Constants.CENHDR));
entry.entryName = inBuffer.slice(tmp, (tmp += entry.header.fileNameLength));
index += entry.header.entryHeaderSize;
callback(entry);
}
}
function readEntries() {
loadedEntries = true;
entryTable = {};
entryList = new Array(mainHeader.diskEntries); // total number of entries
var index = mainHeader.offset; // offset of first CEN header
for (var i = 0; i < entryList.length; i++) {
var tmp = index,
entry = new ZipEntry(inBuffer);
entry.header = inBuffer.slice(tmp, (tmp += Utils.Constants.CENHDR));
entry.entryName = inBuffer.slice(tmp, (tmp += entry.header.fileNameLength));
if (entry.header.extraLength) {
entry.extra = inBuffer.slice(tmp, (tmp += entry.header.extraLength));
}
if (entry.header.commentLength) entry.comment = inBuffer.slice(tmp, tmp + entry.header.commentLength);
index += entry.header.entryHeaderSize;
entryList[i] = entry;
entryTable[entry.entryName] = entry;
}
}
function readMainHeader(/*Boolean*/ readNow) {
var i = inBuffer.length - Utils.Constants.ENDHDR, // END header size
max = Math.max(0, i - 0xffff), // 0xFFFF is the max zip file comment length
n = max,
endStart = inBuffer.length,
endOffset = -1, // Start offset of the END header
commentEnd = 0;
for (i; i >= n; i--) {
if (inBuffer[i] !== 0x50) continue; // quick check that the byte is 'P'
if (inBuffer.readUInt32LE(i) === Utils.Constants.ENDSIG) {
// "PK\005\006"
endOffset = i;
commentEnd = i;
endStart = i + Utils.Constants.ENDHDR;
// We already found a regular signature, let's look just a bit further to check if there's any zip64 signature
n = i - Utils.Constants.END64HDR;
continue;
}
if (inBuffer.readUInt32LE(i) === Utils.Constants.END64SIG) {
// Found a zip64 signature, let's continue reading the whole zip64 record
n = max;
continue;
}
if (inBuffer.readUInt32LE(i) === Utils.Constants.ZIP64SIG) {
// Found the zip64 record, let's determine it's size
endOffset = i;
endStart = i + Utils.readBigUInt64LE(inBuffer, i + Utils.Constants.ZIP64SIZE) + Utils.Constants.ZIP64LEAD;
break;
}
}
if (!~endOffset) throw new Error(Utils.Errors.INVALID_FORMAT);
mainHeader.loadFromBinary(inBuffer.slice(endOffset, endStart));
if (mainHeader.commentLength) {
_comment = inBuffer.slice(commentEnd + Utils.Constants.ENDHDR);
}
if (readNow) readEntries();
}
function sortEntries() {
if (entryList.length > 1 && !noSort) {
entryList.sort((a, b) => a.entryName.toLowerCase().localeCompare(b.entryName.toLowerCase()));
}
}
return {
/**
* Returns an array of ZipEntry objects existent in the current opened archive
* @return Array
*/
get entries() {
if (!loadedEntries) {
readEntries();
}
return entryList;
},
/**
* Archive comment
* @return {String}
*/
get comment() {
return _comment.toString();
},
set comment(val) {
_comment = Utils.toBuffer(val);
mainHeader.commentLength = _comment.length;
},
getEntryCount: function () {
if (!loadedEntries) {
return mainHeader.diskEntries;
}
return entryList.length;
},
forEach: function (callback) {
if (!loadedEntries) {
iterateEntries(callback);
return;
}
entryList.forEach(callback);
},
/**
* Returns a reference to the entry with the given name or null if entry is inexistent
*
* @param entryName
* @return ZipEntry
*/
getEntry: function (/*String*/ entryName) {
if (!loadedEntries) {
readEntries();
}
return entryTable[entryName] || null;
},
/**
* Adds the given entry to the entry list
*
* @param entry
*/
setEntry: function (/*ZipEntry*/ entry) {
if (!loadedEntries) {
readEntries();
}
entryList.push(entry);
entryTable[entry.entryName] = entry;
mainHeader.totalEntries = entryList.length;
},
/**
* Removes the entry with the given name from the entry list.
*
* If the entry is a directory, then all nested files and directories will be removed
* @param entryName
*/
deleteEntry: function (/*String*/ entryName) {
if (!loadedEntries) {
readEntries();
}
var entry = entryTable[entryName];
if (entry && entry.isDirectory) {
var _self = this;
this.getEntryChildren(entry).forEach(function (child) {
if (child.entryName !== entryName) {
_self.deleteEntry(child.entryName);
}
});
}
entryList.splice(entryList.indexOf(entry), 1);
delete entryTable[entryName];
mainHeader.totalEntries = entryList.length;
},
/**
* Iterates and returns all nested files and directories of the given entry
*
* @param entry
* @return Array
*/
getEntryChildren: function (/*ZipEntry*/ entry) {
if (!loadedEntries) {
readEntries();
}
if (entry && entry.isDirectory) {
const list = [];
const name = entry.entryName;
const len = name.length;
entryList.forEach(function (zipEntry) {
if (zipEntry.entryName.substr(0, len) === name) {
list.push(zipEntry);
}
});
return list;
}
return [];
},
/**
* Returns the zip file
*
* @return Buffer
*/
compressToBuffer: function () {
if (!loadedEntries) {
readEntries();
}
sortEntries();
const dataBlock = [];
const entryHeaders = [];
let totalSize = 0;
let dindex = 0;
mainHeader.size = 0;
mainHeader.offset = 0;
for (const entry of entryList) {
// compress data and set local and entry header accordingly. Reason why is called first
const compressedData = entry.getCompressedData();
// 1. construct data header
entry.header.offset = dindex;
const dataHeader = entry.header.dataHeaderToBinary();
const entryNameLen = entry.rawEntryName.length;
// 1.2. postheader - data after data header
const postHeader = Buffer.alloc(entryNameLen + entry.extra.length);
entry.rawEntryName.copy(postHeader, 0);
postHeader.copy(entry.extra, entryNameLen);
// 2. offsets
const dataLength = dataHeader.length + postHeader.length + compressedData.length;
dindex += dataLength;
// 3. store values in sequence
dataBlock.push(dataHeader);
dataBlock.push(postHeader);
dataBlock.push(compressedData);
// 4. construct entry header
const entryHeader = entry.packHeader();
entryHeaders.push(entryHeader);
// 5. update main header
mainHeader.size += entryHeader.length;
totalSize += dataLength + entryHeader.length;
}
totalSize += mainHeader.mainHeaderSize; // also includes zip file comment length
// point to end of data and beginning of central directory first record
mainHeader.offset = dindex;
dindex = 0;
const outBuffer = Buffer.alloc(totalSize);
// write data blocks
for (const content of dataBlock) {
content.copy(outBuffer, dindex);
dindex += content.length;
}
// write central directory entries
for (const content of entryHeaders) {
content.copy(outBuffer, dindex);
dindex += content.length;
}
// write main header
const mh = mainHeader.toBinary();
if (_comment) {
_comment.copy(mh, Utils.Constants.ENDHDR); // add zip file comment
}
mh.copy(outBuffer, dindex);
return outBuffer;
},
toAsyncBuffer: function (/*Function*/ onSuccess, /*Function*/ onFail, /*Function*/ onItemStart, /*Function*/ onItemEnd) {
try {
if (!loadedEntries) {
readEntries();
}
sortEntries();
const dataBlock = [];
const entryHeaders = [];
let totalSize = 0;
let dindex = 0;
mainHeader.size = 0;
mainHeader.offset = 0;
const compress2Buffer = function (entryLists) {
if (entryLists.length) {
const entry = entryLists.pop();
const name = entry.entryName + entry.extra.toString();
if (onItemStart) onItemStart(name);
entry.getCompressedDataAsync(function (compressedData) {
if (onItemEnd) onItemEnd(name);
entry.header.offset = dindex;
// data header
const dataHeader = entry.header.dataHeaderToBinary();
const postHeader = Buffer.alloc(name.length, name);
const dataLength = dataHeader.length + postHeader.length + compressedData.length;
dindex += dataLength;
dataBlock.push(dataHeader);
dataBlock.push(postHeader);
dataBlock.push(compressedData);
const entryHeader = entry.packHeader();
entryHeaders.push(entryHeader);
mainHeader.size += entryHeader.length;
totalSize += dataLength + entryHeader.length;
compress2Buffer(entryLists);
});
} else {
totalSize += mainHeader.mainHeaderSize; // also includes zip file comment length
// point to end of data and beginning of central directory first record
mainHeader.offset = dindex;
dindex = 0;
const outBuffer = Buffer.alloc(totalSize);
dataBlock.forEach(function (content) {
content.copy(outBuffer, dindex); // write data blocks
dindex += content.length;
});
entryHeaders.forEach(function (content) {
content.copy(outBuffer, dindex); // write central directory entries
dindex += content.length;
});
const mh = mainHeader.toBinary();
if (_comment) {
_comment.copy(mh, Utils.Constants.ENDHDR); // add zip file comment
}
mh.copy(outBuffer, dindex); // write main header
onSuccess(outBuffer);
}
};
compress2Buffer(entryList);
} catch (e) {
onFail(e);
}
}
};
};