https://github.com/t1st3/is-7z

Check if a Buffer/Uint8Array is a 7Z archive
https://github.com/t1st3/is-7z

7-zip 7z buffer detect file javascript magic-numbers uint8array

Last synced: 29 days ago
JSON representation

Check if a Buffer/Uint8Array is a 7Z archive

• Host: GitHub
• URL: https://github.com/t1st3/is-7z
• Owner: t1st3
• License: mit
• Created: 2016-01-19T20:59:42.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2020-06-03T09:18:36.000Z (over 4 years ago)
• Last Synced: 2024-12-02T21:21:34.910Z (about 2 months ago)
• Topics: 7-zip, 7z, buffer, detect, file, javascript, magic-numbers, uint8array
• Language: JavaScript
• Size: 74.2 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: readme.md
  • License: license

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README

        
# is-7z

[![NPM version](https://img.shields.io/npm/v/is-7z.svg)](https://www.npmjs.com/package/is-7z)

[![Build Status](https://travis-ci.org/t1st3/is-7z.svg?branch=master)](https://travis-ci.org/t1st3/is-7z)

> Check if a Buffer/Uint8Array is a [7Z](https://en.wikipedia.org/wiki/7z) archive.

## Install

```sh

$ npm install --save is-7z

```

## Usage

### Node.js

```js

var readChunk = require('read-chunk'); // npm install read-chunk

var is7z = require('is-7z');

var buffer = readChunk.sync('unicorn.7z', 0, 6);

is7z(buffer);

//=> true

```

### Browser

```js

var xhr = new XMLHttpRequest();

xhr.open('GET', 'unicorn.7z');

xhr.responseType = 'arraybuffer';

xhr.onload = function () {

	is7z(new Uint8Array(this.response));

	//=> true

};

xhr.send();

```

## API

### is7z(buffer)

Accepts a Buffer (Node.js) or Uint8Array.

It only needs the first 6 bytes.

## License

MIT © [t1st3](https://t1st3.com)