chore: disable delete confirmation in VS Code explorer
Disable the confirmation dialog when deleting files in the VS Code explorer to streamline the development workflow and reduce friction during file management operations.
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325
website/node_modules/compression/index.js
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325
website/node_modules/compression/index.js
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/*!
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* compression
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* Copyright(c) 2010 Sencha Inc.
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* Copyright(c) 2011 TJ Holowaychuk
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* Copyright(c) 2014 Jonathan Ong
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* Copyright(c) 2014-2015 Douglas Christopher Wilson
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* MIT Licensed
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*/
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'use strict'
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/**
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* Module dependencies.
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* @private
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*/
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var Negotiator = require('negotiator')
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var Buffer = require('safe-buffer').Buffer
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var bytes = require('bytes')
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var compressible = require('compressible')
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var debug = require('debug')('compression')
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var onHeaders = require('on-headers')
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var vary = require('vary')
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var zlib = require('zlib')
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/**
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* Module exports.
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*/
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module.exports = compression
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module.exports.filter = shouldCompress
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/**
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* @const
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* whether current node version has brotli support
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*/
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var hasBrotliSupport = 'createBrotliCompress' in zlib
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/**
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* Module variables.
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* @private
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*/
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var cacheControlNoTransformRegExp = /(?:^|,)\s*?no-transform\s*?(?:,|$)/
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var SUPPORTED_ENCODING = hasBrotliSupport ? ['br', 'gzip', 'deflate', 'identity'] : ['gzip', 'deflate', 'identity']
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var PREFERRED_ENCODING = hasBrotliSupport ? ['br', 'gzip'] : ['gzip']
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var encodingSupported = ['gzip', 'deflate', 'identity', 'br']
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/**
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* Compress response data with gzip / deflate.
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*
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* @param {Object} [options]
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* @return {Function} middleware
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* @public
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*/
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function compression (options) {
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var opts = options || {}
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var optsBrotli = {}
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if (hasBrotliSupport) {
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Object.assign(optsBrotli, opts.brotli)
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var brotliParams = {}
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brotliParams[zlib.constants.BROTLI_PARAM_QUALITY] = 4
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// set the default level to a reasonable value with balanced speed/ratio
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optsBrotli.params = Object.assign(brotliParams, optsBrotli.params)
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}
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// options
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var filter = opts.filter || shouldCompress
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var threshold = bytes.parse(opts.threshold)
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var enforceEncoding = opts.enforceEncoding || 'identity'
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if (threshold == null) {
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threshold = 1024
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}
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return function compression (req, res, next) {
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var ended = false
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var length
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var listeners = []
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var stream
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var _end = res.end
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var _on = res.on
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var _write = res.write
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// flush
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res.flush = function flush () {
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if (stream) {
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stream.flush()
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}
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}
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// proxy
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res.write = function write (chunk, encoding) {
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if (ended) {
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return false
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}
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if (!headersSent(res)) {
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this.writeHead(this.statusCode)
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}
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return stream
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? stream.write(toBuffer(chunk, encoding))
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: _write.call(this, chunk, encoding)
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}
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res.end = function end (chunk, encoding) {
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if (ended) {
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return false
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}
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if (!headersSent(res)) {
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// estimate the length
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if (!this.getHeader('Content-Length')) {
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length = chunkLength(chunk, encoding)
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}
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this.writeHead(this.statusCode)
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}
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if (!stream) {
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return _end.call(this, chunk, encoding)
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}
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// mark ended
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ended = true
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// write Buffer for Node.js 0.8
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return chunk
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? stream.end(toBuffer(chunk, encoding))
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: stream.end()
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}
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res.on = function on (type, listener) {
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if (!listeners || type !== 'drain') {
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return _on.call(this, type, listener)
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}
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if (stream) {
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return stream.on(type, listener)
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}
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// buffer listeners for future stream
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listeners.push([type, listener])
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return this
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}
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function nocompress (msg) {
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debug('no compression: %s', msg)
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addListeners(res, _on, listeners)
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listeners = null
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}
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onHeaders(res, function onResponseHeaders () {
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// determine if request is filtered
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if (!filter(req, res)) {
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nocompress('filtered')
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return
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}
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// determine if the entity should be transformed
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if (!shouldTransform(req, res)) {
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nocompress('no transform')
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return
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}
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// vary
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vary(res, 'Accept-Encoding')
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// content-length below threshold
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if (Number(res.getHeader('Content-Length')) < threshold || length < threshold) {
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nocompress('size below threshold')
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return
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}
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var encoding = res.getHeader('Content-Encoding') || 'identity'
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// already encoded
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if (encoding !== 'identity') {
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nocompress('already encoded')
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return
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}
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// head
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if (req.method === 'HEAD') {
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nocompress('HEAD request')
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return
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}
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// compression method
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var negotiator = new Negotiator(req)
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var method = negotiator.encoding(SUPPORTED_ENCODING, PREFERRED_ENCODING)
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// if no method is found, use the default encoding
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if (!req.headers['accept-encoding'] && encodingSupported.indexOf(enforceEncoding) !== -1) {
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method = enforceEncoding
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}
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// negotiation failed
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if (!method || method === 'identity') {
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nocompress('not acceptable')
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return
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}
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// compression stream
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debug('%s compression', method)
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stream = method === 'gzip'
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? zlib.createGzip(opts)
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: method === 'br'
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? zlib.createBrotliCompress(optsBrotli)
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: zlib.createDeflate(opts)
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// add buffered listeners to stream
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addListeners(stream, stream.on, listeners)
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// header fields
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res.setHeader('Content-Encoding', method)
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res.removeHeader('Content-Length')
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// compression
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stream.on('data', function onStreamData (chunk) {
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if (_write.call(res, chunk) === false) {
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stream.pause()
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}
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})
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stream.on('end', function onStreamEnd () {
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_end.call(res)
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})
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_on.call(res, 'drain', function onResponseDrain () {
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stream.resume()
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})
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})
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next()
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}
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}
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/**
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* Add bufferred listeners to stream
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* @private
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*/
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function addListeners (stream, on, listeners) {
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for (var i = 0; i < listeners.length; i++) {
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on.apply(stream, listeners[i])
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}
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}
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/**
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* Get the length of a given chunk
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*/
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function chunkLength (chunk, encoding) {
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if (!chunk) {
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return 0
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}
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return Buffer.isBuffer(chunk)
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? chunk.length
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: Buffer.byteLength(chunk, encoding)
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}
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/**
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* Default filter function.
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* @private
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*/
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function shouldCompress (req, res) {
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var type = res.getHeader('Content-Type')
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if (type === undefined || !compressible(type)) {
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debug('%s not compressible', type)
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return false
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}
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return true
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}
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/**
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* Determine if the entity should be transformed.
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* @private
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*/
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function shouldTransform (req, res) {
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var cacheControl = res.getHeader('Cache-Control')
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// Don't compress for Cache-Control: no-transform
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// https://tools.ietf.org/html/rfc7234#section-5.2.2.4
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return !cacheControl ||
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!cacheControlNoTransformRegExp.test(cacheControl)
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}
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/**
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* Coerce arguments to Buffer
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* @private
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*/
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function toBuffer (chunk, encoding) {
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return Buffer.isBuffer(chunk)
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? chunk
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: Buffer.from(chunk, encoding)
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}
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/**
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* Determine if the response headers have been sent.
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*
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* @param {object} res
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* @returns {boolean}
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* @private
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*/
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function headersSent (res) {
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return typeof res.headersSent !== 'boolean'
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? Boolean(res._header)
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: res.headersSent
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}
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