관리-도구
편집 파일: gunzip-maybe.js
'use strict' const duplex = require('mississippi').duplex const through = require('mississippi').through const zlib = require('zlib') function hasGzipHeader (c) { return c[0] === 0x1F && c[1] === 0x8B && c[2] === 0x08 } module.exports = gunzip function gunzip () { const stream = duplex() const peeker = through((chunk, enc, cb) => { const newStream = hasGzipHeader(chunk) ? zlib.createGunzip() : through() stream.setReadable(newStream) stream.setWritable(newStream) stream.write(chunk) }) stream.setWritable(peeker) return stream }