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-rw-r--r--node_modules/send/index.js1130
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diff --git a/node_modules/send/index.js b/node_modules/send/index.js
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--- a/node_modules/send/index.js
+++ /dev/null
@@ -1,1130 +0,0 @@
-/*!
- * send
- * Copyright(c) 2012 TJ Holowaychuk
- * Copyright(c) 2014-2016 Douglas Christopher Wilson
- * MIT Licensed
- */
-
-'use strict'
-
-/**
- * Module dependencies.
- * @private
- */
-
-var createError = require('http-errors')
-var debug = require('debug')('send')
-var deprecate = require('depd')('send')
-var destroy = require('destroy')
-var encodeUrl = require('encodeurl')
-var escapeHtml = require('escape-html')
-var etag = require('etag')
-var fresh = require('fresh')
-var fs = require('fs')
-var mime = require('mime')
-var ms = require('ms')
-var onFinished = require('on-finished')
-var parseRange = require('range-parser')
-var path = require('path')
-var statuses = require('statuses')
-var Stream = require('stream')
-var util = require('util')
-
-/**
- * Path function references.
- * @private
- */
-
-var extname = path.extname
-var join = path.join
-var normalize = path.normalize
-var resolve = path.resolve
-var sep = path.sep
-
-/**
- * Regular expression for identifying a bytes Range header.
- * @private
- */
-
-var BYTES_RANGE_REGEXP = /^ *bytes=/
-
-/**
- * Maximum value allowed for the max age.
- * @private
- */
-
-var MAX_MAXAGE = 60 * 60 * 24 * 365 * 1000 // 1 year
-
-/**
- * Regular expression to match a path with a directory up component.
- * @private
- */
-
-var UP_PATH_REGEXP = /(?:^|[\\/])\.\.(?:[\\/]|$)/
-
-/**
- * Module exports.
- * @public
- */
-
-module.exports = send
-module.exports.mime = mime
-
-/**
- * Return a `SendStream` for `req` and `path`.
- *
- * @param {object} req
- * @param {string} path
- * @param {object} [options]
- * @return {SendStream}
- * @public
- */
-
-function send (req, path, options) {
- return new SendStream(req, path, options)
-}
-
-/**
- * Initialize a `SendStream` with the given `path`.
- *
- * @param {Request} req
- * @param {String} path
- * @param {object} [options]
- * @private
- */
-
-function SendStream (req, path, options) {
- Stream.call(this)
-
- var opts = options || {}
-
- this.options = opts
- this.path = path
- this.req = req
-
- this._acceptRanges = opts.acceptRanges !== undefined
- ? Boolean(opts.acceptRanges)
- : true
-
- this._cacheControl = opts.cacheControl !== undefined
- ? Boolean(opts.cacheControl)
- : true
-
- this._etag = opts.etag !== undefined
- ? Boolean(opts.etag)
- : true
-
- this._dotfiles = opts.dotfiles !== undefined
- ? opts.dotfiles
- : 'ignore'
-
- if (this._dotfiles !== 'ignore' && this._dotfiles !== 'allow' && this._dotfiles !== 'deny') {
- throw new TypeError('dotfiles option must be "allow", "deny", or "ignore"')
- }
-
- this._hidden = Boolean(opts.hidden)
-
- if (opts.hidden !== undefined) {
- deprecate('hidden: use dotfiles: \'' + (this._hidden ? 'allow' : 'ignore') + '\' instead')
- }
-
- // legacy support
- if (opts.dotfiles === undefined) {
- this._dotfiles = undefined
- }
-
- this._extensions = opts.extensions !== undefined
- ? normalizeList(opts.extensions, 'extensions option')
- : []
-
- this._immutable = opts.immutable !== undefined
- ? Boolean(opts.immutable)
- : false
-
- this._index = opts.index !== undefined
- ? normalizeList(opts.index, 'index option')
- : ['index.html']
-
- this._lastModified = opts.lastModified !== undefined
- ? Boolean(opts.lastModified)
- : true
-
- this._maxage = opts.maxAge || opts.maxage
- this._maxage = typeof this._maxage === 'string'
- ? ms(this._maxage)
- : Number(this._maxage)
- this._maxage = !isNaN(this._maxage)
- ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)
- : 0
-
- this._root = opts.root
- ? resolve(opts.root)
- : null
-
- if (!this._root && opts.from) {
- this.from(opts.from)
- }
-}
-
-/**
- * Inherits from `Stream`.
- */
-
-util.inherits(SendStream, Stream)
-
-/**
- * Enable or disable etag generation.
- *
- * @param {Boolean} val
- * @return {SendStream}
- * @api public
- */
-
-SendStream.prototype.etag = deprecate.function(function etag (val) {
- this._etag = Boolean(val)
- debug('etag %s', this._etag)
- return this
-}, 'send.etag: pass etag as option')
-
-/**
- * Enable or disable "hidden" (dot) files.
- *
- * @param {Boolean} path
- * @return {SendStream}
- * @api public
- */
-
-SendStream.prototype.hidden = deprecate.function(function hidden (val) {
- this._hidden = Boolean(val)
- this._dotfiles = undefined
- debug('hidden %s', this._hidden)
- return this
-}, 'send.hidden: use dotfiles option')
-
-/**
- * Set index `paths`, set to a falsy
- * value to disable index support.
- *
- * @param {String|Boolean|Array} paths
- * @return {SendStream}
- * @api public
- */
-
-SendStream.prototype.index = deprecate.function(function index (paths) {
- var index = !paths ? [] : normalizeList(paths, 'paths argument')
- debug('index %o', paths)
- this._index = index
- return this
-}, 'send.index: pass index as option')
-
-/**
- * Set root `path`.
- *
- * @param {String} path
- * @return {SendStream}
- * @api public
- */
-
-SendStream.prototype.root = function root (path) {
- this._root = resolve(String(path))
- debug('root %s', this._root)
- return this
-}
-
-SendStream.prototype.from = deprecate.function(SendStream.prototype.root,
- 'send.from: pass root as option')
-
-SendStream.prototype.root = deprecate.function(SendStream.prototype.root,
- 'send.root: pass root as option')
-
-/**
- * Set max-age to `maxAge`.
- *
- * @param {Number} maxAge
- * @return {SendStream}
- * @api public
- */
-
-SendStream.prototype.maxage = deprecate.function(function maxage (maxAge) {
- this._maxage = typeof maxAge === 'string'
- ? ms(maxAge)
- : Number(maxAge)
- this._maxage = !isNaN(this._maxage)
- ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)
- : 0
- debug('max-age %d', this._maxage)
- return this
-}, 'send.maxage: pass maxAge as option')
-
-/**
- * Emit error with `status`.
- *
- * @param {number} status
- * @param {Error} [err]
- * @private
- */
-
-SendStream.prototype.error = function error (status, err) {
- // emit if listeners instead of responding
- if (hasListeners(this, 'error')) {
- return this.emit('error', createError(status, err, {
- expose: false
- }))
- }
-
- var res = this.res
- var msg = statuses[status] || String(status)
- var doc = createHtmlDocument('Error', escapeHtml(msg))
-
- // clear existing headers
- clearHeaders(res)
-
- // add error headers
- if (err && err.headers) {
- setHeaders(res, err.headers)
- }
-
- // send basic response
- res.statusCode = status
- res.setHeader('Content-Type', 'text/html; charset=UTF-8')
- res.setHeader('Content-Length', Buffer.byteLength(doc))
- res.setHeader('Content-Security-Policy', "default-src 'self'")
- res.setHeader('X-Content-Type-Options', 'nosniff')
- res.end(doc)
-}
-
-/**
- * Check if the pathname ends with "/".
- *
- * @return {boolean}
- * @private
- */
-
-SendStream.prototype.hasTrailingSlash = function hasTrailingSlash () {
- return this.path[this.path.length - 1] === '/'
-}
-
-/**
- * Check if this is a conditional GET request.
- *
- * @return {Boolean}
- * @api private
- */
-
-SendStream.prototype.isConditionalGET = function isConditionalGET () {
- return this.req.headers['if-match'] ||
- this.req.headers['if-unmodified-since'] ||
- this.req.headers['if-none-match'] ||
- this.req.headers['if-modified-since']
-}
-
-/**
- * Check if the request preconditions failed.
- *
- * @return {boolean}
- * @private
- */
-
-SendStream.prototype.isPreconditionFailure = function isPreconditionFailure () {
- var req = this.req
- var res = this.res
-
- // if-match
- var match = req.headers['if-match']
- if (match) {
- var etag = res.getHeader('ETag')
- return !etag || (match !== '*' && parseTokenList(match).every(function (match) {
- return match !== etag && match !== 'W/' + etag && 'W/' + match !== etag
- }))
- }
-
- // if-unmodified-since
- var unmodifiedSince = parseHttpDate(req.headers['if-unmodified-since'])
- if (!isNaN(unmodifiedSince)) {
- var lastModified = parseHttpDate(res.getHeader('Last-Modified'))
- return isNaN(lastModified) || lastModified > unmodifiedSince
- }
-
- return false
-}
-
-/**
- * Strip content-* header fields.
- *
- * @private
- */
-
-SendStream.prototype.removeContentHeaderFields = function removeContentHeaderFields () {
- var res = this.res
- var headers = getHeaderNames(res)
-
- for (var i = 0; i < headers.length; i++) {
- var header = headers[i]
- if (header.substr(0, 8) === 'content-' && header !== 'content-location') {
- res.removeHeader(header)
- }
- }
-}
-
-/**
- * Respond with 304 not modified.
- *
- * @api private
- */
-
-SendStream.prototype.notModified = function notModified () {
- var res = this.res
- debug('not modified')
- this.removeContentHeaderFields()
- res.statusCode = 304
- res.end()
-}
-
-/**
- * Raise error that headers already sent.
- *
- * @api private
- */
-
-SendStream.prototype.headersAlreadySent = function headersAlreadySent () {
- var err = new Error('Can\'t set headers after they are sent.')
- debug('headers already sent')
- this.error(500, err)
-}
-
-/**
- * Check if the request is cacheable, aka
- * responded with 2xx or 304 (see RFC 2616 section 14.2{5,6}).
- *
- * @return {Boolean}
- * @api private
- */
-
-SendStream.prototype.isCachable = function isCachable () {
- var statusCode = this.res.statusCode
- return (statusCode >= 200 && statusCode < 300) ||
- statusCode === 304
-}
-
-/**
- * Handle stat() error.
- *
- * @param {Error} error
- * @private
- */
-
-SendStream.prototype.onStatError = function onStatError (error) {
- switch (error.code) {
- case 'ENAMETOOLONG':
- case 'ENOENT':
- case 'ENOTDIR':
- this.error(404, error)
- break
- default:
- this.error(500, error)
- break
- }
-}
-
-/**
- * Check if the cache is fresh.
- *
- * @return {Boolean}
- * @api private
- */
-
-SendStream.prototype.isFresh = function isFresh () {
- return fresh(this.req.headers, {
- 'etag': this.res.getHeader('ETag'),
- 'last-modified': this.res.getHeader('Last-Modified')
- })
-}
-
-/**
- * Check if the range is fresh.
- *
- * @return {Boolean}
- * @api private
- */
-
-SendStream.prototype.isRangeFresh = function isRangeFresh () {
- var ifRange = this.req.headers['if-range']
-
- if (!ifRange) {
- return true
- }
-
- // if-range as etag
- if (ifRange.indexOf('"') !== -1) {
- var etag = this.res.getHeader('ETag')
- return Boolean(etag && ifRange.indexOf(etag) !== -1)
- }
-
- // if-range as modified date
- var lastModified = this.res.getHeader('Last-Modified')
- return parseHttpDate(lastModified) <= parseHttpDate(ifRange)
-}
-
-/**
- * Redirect to path.
- *
- * @param {string} path
- * @private
- */
-
-SendStream.prototype.redirect = function redirect (path) {
- var res = this.res
-
- if (hasListeners(this, 'directory')) {
- this.emit('directory', res, path)
- return
- }
-
- if (this.hasTrailingSlash()) {
- this.error(403)
- return
- }
-
- var loc = encodeUrl(collapseLeadingSlashes(this.path + '/'))
- var doc = createHtmlDocument('Redirecting', 'Redirecting to <a href="' + escapeHtml(loc) + '">' +
- escapeHtml(loc) + '</a>')
-
- // redirect
- res.statusCode = 301
- res.setHeader('Content-Type', 'text/html; charset=UTF-8')
- res.setHeader('Content-Length', Buffer.byteLength(doc))
- res.setHeader('Content-Security-Policy', "default-src 'self'")
- res.setHeader('X-Content-Type-Options', 'nosniff')
- res.setHeader('Location', loc)
- res.end(doc)
-}
-
-/**
- * Pipe to `res.
- *
- * @param {Stream} res
- * @return {Stream} res
- * @api public
- */
-
-SendStream.prototype.pipe = function pipe (res) {
- // root path
- var root = this._root
-
- // references
- this.res = res
-
- // decode the path
- var path = decode(this.path)
- if (path === -1) {
- this.error(400)
- return res
- }
-
- // null byte(s)
- if (~path.indexOf('\0')) {
- this.error(400)
- return res
- }
-
- var parts
- if (root !== null) {
- // normalize
- if (path) {
- path = normalize('.' + sep + path)
- }
-
- // malicious path
- if (UP_PATH_REGEXP.test(path)) {
- debug('malicious path "%s"', path)
- this.error(403)
- return res
- }
-
- // explode path parts
- parts = path.split(sep)
-
- // join / normalize from optional root dir
- path = normalize(join(root, path))
- root = normalize(root + sep)
- } else {
- // ".." is malicious without "root"
- if (UP_PATH_REGEXP.test(path)) {
- debug('malicious path "%s"', path)
- this.error(403)
- return res
- }
-
- // explode path parts
- parts = normalize(path).split(sep)
-
- // resolve the path
- path = resolve(path)
- }
-
- // dotfile handling
- if (containsDotFile(parts)) {
- var access = this._dotfiles
-
- // legacy support
- if (access === undefined) {
- access = parts[parts.length - 1][0] === '.'
- ? (this._hidden ? 'allow' : 'ignore')
- : 'allow'
- }
-
- debug('%s dotfile "%s"', access, path)
- switch (access) {
- case 'allow':
- break
- case 'deny':
- this.error(403)
- return res
- case 'ignore':
- default:
- this.error(404)
- return res
- }
- }
-
- // index file support
- if (this._index.length && this.hasTrailingSlash()) {
- this.sendIndex(path)
- return res
- }
-
- this.sendFile(path)
- return res
-}
-
-/**
- * Transfer `path`.
- *
- * @param {String} path
- * @api public
- */
-
-SendStream.prototype.send = function send (path, stat) {
- var len = stat.size
- var options = this.options
- var opts = {}
- var res = this.res
- var req = this.req
- var ranges = req.headers.range
- var offset = options.start || 0
-
- if (headersSent(res)) {
- // impossible to send now
- this.headersAlreadySent()
- return
- }
-
- debug('pipe "%s"', path)
-
- // set header fields
- this.setHeader(path, stat)
-
- // set content-type
- this.type(path)
-
- // conditional GET support
- if (this.isConditionalGET()) {
- if (this.isPreconditionFailure()) {
- this.error(412)
- return
- }
-
- if (this.isCachable() && this.isFresh()) {
- this.notModified()
- return
- }
- }
-
- // adjust len to start/end options
- len = Math.max(0, len - offset)
- if (options.end !== undefined) {
- var bytes = options.end - offset + 1
- if (len > bytes) len = bytes
- }
-
- // Range support
- if (this._acceptRanges && BYTES_RANGE_REGEXP.test(ranges)) {
- // parse
- ranges = parseRange(len, ranges, {
- combine: true
- })
-
- // If-Range support
- if (!this.isRangeFresh()) {
- debug('range stale')
- ranges = -2
- }
-
- // unsatisfiable
- if (ranges === -1) {
- debug('range unsatisfiable')
-
- // Content-Range
- res.setHeader('Content-Range', contentRange('bytes', len))
-
- // 416 Requested Range Not Satisfiable
- return this.error(416, {
- headers: {'Content-Range': res.getHeader('Content-Range')}
- })
- }
-
- // valid (syntactically invalid/multiple ranges are treated as a regular response)
- if (ranges !== -2 && ranges.length === 1) {
- debug('range %j', ranges)
-
- // Content-Range
- res.statusCode = 206
- res.setHeader('Content-Range', contentRange('bytes', len, ranges[0]))
-
- // adjust for requested range
- offset += ranges[0].start
- len = ranges[0].end - ranges[0].start + 1
- }
- }
-
- // clone options
- for (var prop in options) {
- opts[prop] = options[prop]
- }
-
- // set read options
- opts.start = offset
- opts.end = Math.max(offset, offset + len - 1)
-
- // content-length
- res.setHeader('Content-Length', len)
-
- // HEAD support
- if (req.method === 'HEAD') {
- res.end()
- return
- }
-
- this.stream(path, opts)
-}
-
-/**
- * Transfer file for `path`.
- *
- * @param {String} path
- * @api private
- */
-SendStream.prototype.sendFile = function sendFile (path) {
- var i = 0
- var self = this
-
- debug('stat "%s"', path)
- fs.stat(path, function onstat (err, stat) {
- if (err && err.code === 'ENOENT' && !extname(path) && path[path.length - 1] !== sep) {
- // not found, check extensions
- return next(err)
- }
- if (err) return self.onStatError(err)
- if (stat.isDirectory()) return self.redirect(path)
- self.emit('file', path, stat)
- self.send(path, stat)
- })
-
- function next (err) {
- if (self._extensions.length <= i) {
- return err
- ? self.onStatError(err)
- : self.error(404)
- }
-
- var p = path + '.' + self._extensions[i++]
-
- debug('stat "%s"', p)
- fs.stat(p, function (err, stat) {
- if (err) return next(err)
- if (stat.isDirectory()) return next()
- self.emit('file', p, stat)
- self.send(p, stat)
- })
- }
-}
-
-/**
- * Transfer index for `path`.
- *
- * @param {String} path
- * @api private
- */
-SendStream.prototype.sendIndex = function sendIndex (path) {
- var i = -1
- var self = this
-
- function next (err) {
- if (++i >= self._index.length) {
- if (err) return self.onStatError(err)
- return self.error(404)
- }
-
- var p = join(path, self._index[i])
-
- debug('stat "%s"', p)
- fs.stat(p, function (err, stat) {
- if (err) return next(err)
- if (stat.isDirectory()) return next()
- self.emit('file', p, stat)
- self.send(p, stat)
- })
- }
-
- next()
-}
-
-/**
- * Stream `path` to the response.
- *
- * @param {String} path
- * @param {Object} options
- * @api private
- */
-
-SendStream.prototype.stream = function stream (path, options) {
- // TODO: this is all lame, refactor meeee
- var finished = false
- var self = this
- var res = this.res
-
- // pipe
- var stream = fs.createReadStream(path, options)
- this.emit('stream', stream)
- stream.pipe(res)
-
- // response finished, done with the fd
- onFinished(res, function onfinished () {
- finished = true
- destroy(stream)
- })
-
- // error handling code-smell
- stream.on('error', function onerror (err) {
- // request already finished
- if (finished) return
-
- // clean up stream
- finished = true
- destroy(stream)
-
- // error
- self.onStatError(err)
- })
-
- // end
- stream.on('end', function onend () {
- self.emit('end')
- })
-}
-
-/**
- * Set content-type based on `path`
- * if it hasn't been explicitly set.
- *
- * @param {String} path
- * @api private
- */
-
-SendStream.prototype.type = function type (path) {
- var res = this.res
-
- if (res.getHeader('Content-Type')) return
-
- var type = mime.lookup(path)
-
- if (!type) {
- debug('no content-type')
- return
- }
-
- var charset = mime.charsets.lookup(type)
-
- debug('content-type %s', type)
- res.setHeader('Content-Type', type + (charset ? '; charset=' + charset : ''))
-}
-
-/**
- * Set response header fields, most
- * fields may be pre-defined.
- *
- * @param {String} path
- * @param {Object} stat
- * @api private
- */
-
-SendStream.prototype.setHeader = function setHeader (path, stat) {
- var res = this.res
-
- this.emit('headers', res, path, stat)
-
- if (this._acceptRanges && !res.getHeader('Accept-Ranges')) {
- debug('accept ranges')
- res.setHeader('Accept-Ranges', 'bytes')
- }
-
- if (this._cacheControl && !res.getHeader('Cache-Control')) {
- var cacheControl = 'public, max-age=' + Math.floor(this._maxage / 1000)
-
- if (this._immutable) {
- cacheControl += ', immutable'
- }
-
- debug('cache-control %s', cacheControl)
- res.setHeader('Cache-Control', cacheControl)
- }
-
- if (this._lastModified && !res.getHeader('Last-Modified')) {
- var modified = stat.mtime.toUTCString()
- debug('modified %s', modified)
- res.setHeader('Last-Modified', modified)
- }
-
- if (this._etag && !res.getHeader('ETag')) {
- var val = etag(stat)
- debug('etag %s', val)
- res.setHeader('ETag', val)
- }
-}
-
-/**
- * Clear all headers from a response.
- *
- * @param {object} res
- * @private
- */
-
-function clearHeaders (res) {
- var headers = getHeaderNames(res)
-
- for (var i = 0; i < headers.length; i++) {
- res.removeHeader(headers[i])
- }
-}
-
-/**
- * Collapse all leading slashes into a single slash
- *
- * @param {string} str
- * @private
- */
-function collapseLeadingSlashes (str) {
- for (var i = 0; i < str.length; i++) {
- if (str[i] !== '/') {
- break
- }
- }
-
- return i > 1
- ? '/' + str.substr(i)
- : str
-}
-
-/**
- * Determine if path parts contain a dotfile.
- *
- * @api private
- */
-
-function containsDotFile (parts) {
- for (var i = 0; i < parts.length; i++) {
- var part = parts[i]
- if (part.length > 1 && part[0] === '.') {
- return true
- }
- }
-
- return false
-}
-
-/**
- * Create a Content-Range header.
- *
- * @param {string} type
- * @param {number} size
- * @param {array} [range]
- */
-
-function contentRange (type, size, range) {
- return type + ' ' + (range ? range.start + '-' + range.end : '*') + '/' + size
-}
-
-/**
- * Create a minimal HTML document.
- *
- * @param {string} title
- * @param {string} body
- * @private
- */
-
-function createHtmlDocument (title, body) {
- return '<!DOCTYPE html>\n' +
- '<html lang="en">\n' +
- '<head>\n' +
- '<meta charset="utf-8">\n' +
- '<title>' + title + '</title>\n' +
- '</head>\n' +
- '<body>\n' +
- '<pre>' + body + '</pre>\n' +
- '</body>\n' +
- '</html>\n'
-}
-
-/**
- * decodeURIComponent.
- *
- * Allows V8 to only deoptimize this fn instead of all
- * of send().
- *
- * @param {String} path
- * @api private
- */
-
-function decode (path) {
- try {
- return decodeURIComponent(path)
- } catch (err) {
- return -1
- }
-}
-
-/**
- * Get the header names on a respnse.
- *
- * @param {object} res
- * @returns {array[string]}
- * @private
- */
-
-function getHeaderNames (res) {
- return typeof res.getHeaderNames !== 'function'
- ? Object.keys(res._headers || {})
- : res.getHeaderNames()
-}
-
-/**
- * Determine if emitter has listeners of a given type.
- *
- * The way to do this check is done three different ways in Node.js >= 0.8
- * so this consolidates them into a minimal set using instance methods.
- *
- * @param {EventEmitter} emitter
- * @param {string} type
- * @returns {boolean}
- * @private
- */
-
-function hasListeners (emitter, type) {
- var count = typeof emitter.listenerCount !== 'function'
- ? emitter.listeners(type).length
- : emitter.listenerCount(type)
-
- return count > 0
-}
-
-/**
- * Determine if the response headers have been sent.
- *
- * @param {object} res
- * @returns {boolean}
- * @private
- */
-
-function headersSent (res) {
- return typeof res.headersSent !== 'boolean'
- ? Boolean(res._header)
- : res.headersSent
-}
-
-/**
- * Normalize the index option into an array.
- *
- * @param {boolean|string|array} val
- * @param {string} name
- * @private
- */
-
-function normalizeList (val, name) {
- var list = [].concat(val || [])
-
- for (var i = 0; i < list.length; i++) {
- if (typeof list[i] !== 'string') {
- throw new TypeError(name + ' must be array of strings or false')
- }
- }
-
- return list
-}
-
-/**
- * Parse an HTTP Date into a number.
- *
- * @param {string} date
- * @private
- */
-
-function parseHttpDate (date) {
- var timestamp = date && Date.parse(date)
-
- return typeof timestamp === 'number'
- ? timestamp
- : NaN
-}
-
-/**
- * Parse a HTTP token list.
- *
- * @param {string} str
- * @private
- */
-
-function parseTokenList (str) {
- var end = 0
- var list = []
- var start = 0
-
- // gather tokens
- for (var i = 0, len = str.length; i < len; i++) {
- switch (str.charCodeAt(i)) {
- case 0x20: /* */
- if (start === end) {
- start = end = i + 1
- }
- break
- case 0x2c: /* , */
- list.push(str.substring(start, end))
- start = end = i + 1
- break
- default:
- end = i + 1
- break
- }
- }
-
- // final token
- list.push(str.substring(start, end))
-
- return list
-}
-
-/**
- * Set an object of headers on a response.
- *
- * @param {object} res
- * @param {object} headers
- * @private
- */
-
-function setHeaders (res, headers) {
- var keys = Object.keys(headers)
-
- for (var i = 0; i < keys.length; i++) {
- var key = keys[i]
- res.setHeader(key, headers[key])
- }
-}