1 |
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4 |
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5 |
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6 |
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7 |
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8 | 'use strict'
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9 |
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10 |
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11 |
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12 |
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13 |
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14 |
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15 | var createError = require('http-errors')
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16 | var debug = require('debug')('send')
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17 | var deprecate = require('depd')('send')
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18 | var destroy = require('destroy')
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19 | var encodeUrl = require('encodeurl')
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20 | var escapeHtml = require('escape-html')
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21 | var etag = require('etag')
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22 | var fresh = require('fresh')
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23 | var fs = require('fs')
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24 | var mime = require('mime')
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25 | var ms = require('ms')
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26 | var onFinished = require('on-finished')
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27 | var parseRange = require('range-parser')
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28 | var path = require('path')
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29 | var statuses = require('statuses')
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30 | var Stream = require('stream')
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31 | var util = require('util')
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32 |
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33 |
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34 |
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35 |
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36 |
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37 |
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38 | var extname = path.extname
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39 | var join = path.join
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40 | var normalize = path.normalize
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41 | var resolve = path.resolve
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42 | var sep = path.sep
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43 |
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44 |
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45 |
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46 |
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47 |
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48 |
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49 | var BYTES_RANGE_REGEXP = /^ *bytes=/
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50 |
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51 |
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52 |
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53 |
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54 |
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55 |
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56 | var MAX_MAXAGE = 60 * 60 * 24 * 365 * 1000
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57 |
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58 |
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59 |
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60 |
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61 |
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62 |
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63 | var UP_PATH_REGEXP = /(?:^|[\\/])\.\.(?:[\\/]|$)/
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64 |
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65 |
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66 |
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67 |
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68 |
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69 |
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70 | module.exports = send
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71 | module.exports.mime = mime
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72 |
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73 |
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74 |
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75 |
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76 |
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77 |
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78 |
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79 |
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80 |
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81 |
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82 |
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83 | function send (req, path, options) {
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84 | return new SendStream(req, path, options)
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85 | }
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86 |
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87 |
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88 |
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89 |
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90 |
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91 |
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92 |
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93 |
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94 |
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95 |
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96 | function SendStream (req, path, options) {
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97 | Stream.call(this)
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98 |
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99 | var opts = options || {}
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100 |
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101 | this.options = opts
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102 | this.path = path
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103 | this.req = req
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104 |
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105 | this._acceptRanges = opts.acceptRanges !== undefined
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106 | ? Boolean(opts.acceptRanges)
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107 | : true
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108 |
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109 | this._cacheControl = opts.cacheControl !== undefined
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110 | ? Boolean(opts.cacheControl)
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111 | : true
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112 |
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113 | this._etag = opts.etag !== undefined
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114 | ? Boolean(opts.etag)
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115 | : true
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116 |
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117 | this._dotfiles = opts.dotfiles !== undefined
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118 | ? opts.dotfiles
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119 | : 'ignore'
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120 |
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121 | if (this._dotfiles !== 'ignore' && this._dotfiles !== 'allow' && this._dotfiles !== 'deny') {
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122 | throw new TypeError('dotfiles option must be "allow", "deny", or "ignore"')
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123 | }
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124 |
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125 | this._hidden = Boolean(opts.hidden)
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126 |
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127 | if (opts.hidden !== undefined) {
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128 | deprecate('hidden: use dotfiles: \'' + (this._hidden ? 'allow' : 'ignore') + '\' instead')
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129 | }
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130 |
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131 |
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132 | if (opts.dotfiles === undefined) {
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133 | this._dotfiles = undefined
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134 | }
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135 |
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136 | this._extensions = opts.extensions !== undefined
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137 | ? normalizeList(opts.extensions, 'extensions option')
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138 | : []
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139 |
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140 | this._immutable = opts.immutable !== undefined
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141 | ? Boolean(opts.immutable)
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142 | : false
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143 |
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144 | this._index = opts.index !== undefined
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145 | ? normalizeList(opts.index, 'index option')
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146 | : ['index.html']
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147 |
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148 | this._lastModified = opts.lastModified !== undefined
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149 | ? Boolean(opts.lastModified)
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150 | : true
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151 |
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152 | this._maxage = opts.maxAge || opts.maxage
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153 | this._maxage = typeof this._maxage === 'string'
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154 | ? ms(this._maxage)
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155 | : Number(this._maxage)
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156 | this._maxage = !isNaN(this._maxage)
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157 | ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)
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158 | : 0
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159 |
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160 | this._root = opts.root
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161 | ? resolve(opts.root)
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162 | : null
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163 |
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164 | if (!this._root && opts.from) {
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165 | this.from(opts.from)
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166 | }
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167 | }
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168 |
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169 |
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170 |
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171 |
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172 |
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173 | util.inherits(SendStream, Stream)
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174 |
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175 |
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176 |
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177 |
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178 |
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179 |
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180 |
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181 |
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182 |
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183 | SendStream.prototype.etag = deprecate.function(function etag (val) {
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184 | this._etag = Boolean(val)
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185 | debug('etag %s', this._etag)
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186 | return this
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187 | }, 'send.etag: pass etag as option')
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188 |
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189 |
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190 |
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191 |
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192 |
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193 |
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194 |
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195 |
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196 |
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197 | SendStream.prototype.hidden = deprecate.function(function hidden (val) {
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198 | this._hidden = Boolean(val)
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199 | this._dotfiles = undefined
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200 | debug('hidden %s', this._hidden)
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201 | return this
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202 | }, 'send.hidden: use dotfiles option')
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203 |
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204 |
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205 |
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206 |
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207 |
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208 |
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209 |
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210 |
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211 |
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212 |
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213 | SendStream.prototype.index = deprecate.function(function index (paths) {
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214 | var index = !paths ? [] : normalizeList(paths, 'paths argument')
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215 | debug('index %o', paths)
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216 | this._index = index
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217 | return this
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218 | }, 'send.index: pass index as option')
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219 |
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220 |
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221 |
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222 |
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223 |
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224 |
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225 |
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226 |
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227 |
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228 | SendStream.prototype.root = function root (path) {
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229 | this._root = resolve(String(path))
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230 | debug('root %s', this._root)
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231 | return this
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232 | }
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233 |
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234 | SendStream.prototype.from = deprecate.function(SendStream.prototype.root,
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235 | 'send.from: pass root as option')
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236 |
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237 | SendStream.prototype.root = deprecate.function(SendStream.prototype.root,
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238 | 'send.root: pass root as option')
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239 |
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240 |
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241 |
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242 |
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243 |
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244 |
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245 |
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246 |
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247 |
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248 | SendStream.prototype.maxage = deprecate.function(function maxage (maxAge) {
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249 | this._maxage = typeof maxAge === 'string'
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250 | ? ms(maxAge)
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251 | : Number(maxAge)
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252 | this._maxage = !isNaN(this._maxage)
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253 | ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)
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254 | : 0
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255 | debug('max-age %d', this._maxage)
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256 | return this
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257 | }, 'send.maxage: pass maxAge as option')
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258 |
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259 |
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260 |
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261 |
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262 |
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263 |
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264 |
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265 |
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266 |
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267 | SendStream.prototype.error = function error (status, err) {
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268 |
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269 | if (hasListeners(this, 'error')) {
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270 | return this.emit('error', createError(status, err, {
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271 | expose: false
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272 | }))
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273 | }
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274 |
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275 | var res = this.res
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276 | var msg = statuses[status] || String(status)
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277 | var doc = createHtmlDocument('Error', escapeHtml(msg))
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278 |
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279 |
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280 | clearHeaders(res)
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281 |
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282 |
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283 | if (err && err.headers) {
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284 | setHeaders(res, err.headers)
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285 | }
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286 |
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287 |
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288 | res.statusCode = status
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289 | res.setHeader('Content-Type', 'text/html; charset=UTF-8')
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290 | res.setHeader('Content-Length', Buffer.byteLength(doc))
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291 | res.setHeader('Content-Security-Policy', "default-src 'none'")
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292 | res.setHeader('X-Content-Type-Options', 'nosniff')
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293 | res.end(doc)
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294 | }
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295 |
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296 |
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297 |
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298 |
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299 |
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300 |
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301 |
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302 |
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303 | SendStream.prototype.hasTrailingSlash = function hasTrailingSlash () {
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304 | return this.path[this.path.length - 1] === '/'
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305 | }
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306 |
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307 |
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308 |
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309 |
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310 |
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311 |
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312 |
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313 |
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314 | SendStream.prototype.isConditionalGET = function isConditionalGET () {
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315 | return this.req.headers['if-match'] ||
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316 | this.req.headers['if-unmodified-since'] ||
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317 | this.req.headers['if-none-match'] ||
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318 | this.req.headers['if-modified-since']
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319 | }
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320 |
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321 |
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322 |
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323 |
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324 |
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325 |
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326 |
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327 |
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328 | SendStream.prototype.isPreconditionFailure = function isPreconditionFailure () {
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329 | var req = this.req
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330 | var res = this.res
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331 |
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332 |
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333 | var match = req.headers['if-match']
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334 | if (match) {
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335 | var etag = res.getHeader('ETag')
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336 | return !etag || (match !== '*' && parseTokenList(match).every(function (match) {
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337 | return match !== etag && match !== 'W/' + etag && 'W/' + match !== etag
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338 | }))
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339 | }
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340 |
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341 |
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342 | var unmodifiedSince = parseHttpDate(req.headers['if-unmodified-since'])
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343 | if (!isNaN(unmodifiedSince)) {
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344 | var lastModified = parseHttpDate(res.getHeader('Last-Modified'))
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345 | return isNaN(lastModified) || lastModified > unmodifiedSince
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346 | }
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347 |
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348 | return false
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349 | }
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350 |
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351 |
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352 |
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353 |
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354 |
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355 |
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356 |
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357 | SendStream.prototype.removeContentHeaderFields = function removeContentHeaderFields () {
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358 | var res = this.res
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359 | var headers = getHeaderNames(res)
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360 |
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361 | for (var i = 0; i < headers.length; i++) {
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362 | var header = headers[i]
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363 | if (header.substr(0, 8) === 'content-' && header !== 'content-location') {
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364 | res.removeHeader(header)
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365 | }
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366 | }
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367 | }
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368 |
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369 |
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370 |
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371 |
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372 |
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373 |
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374 |
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375 | SendStream.prototype.notModified = function notModified () {
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376 | var res = this.res
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377 | debug('not modified')
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378 | this.removeContentHeaderFields()
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379 | res.statusCode = 304
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380 | res.end()
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381 | }
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382 |
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383 |
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384 |
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385 |
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386 |
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387 |
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388 |
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389 | SendStream.prototype.headersAlreadySent = function headersAlreadySent () {
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390 | var err = new Error('Can\'t set headers after they are sent.')
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391 | debug('headers already sent')
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392 | this.error(500, err)
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393 | }
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394 |
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395 |
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396 |
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397 |
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398 |
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399 |
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400 |
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401 |
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402 |
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403 | SendStream.prototype.isCachable = function isCachable () {
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404 | var statusCode = this.res.statusCode
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405 | return (statusCode >= 200 && statusCode < 300) ||
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406 | statusCode === 304
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407 | }
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408 |
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409 |
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410 |
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411 |
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412 |
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413 |
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414 |
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415 |
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416 | SendStream.prototype.onStatError = function onStatError (error) {
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417 | switch (error.code) {
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418 | case 'ENAMETOOLONG':
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419 | case 'ENOENT':
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420 | case 'ENOTDIR':
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421 | this.error(404, error)
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422 | break
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423 | default:
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424 | this.error(500, error)
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425 | break
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426 | }
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427 | }
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428 |
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429 |
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430 |
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431 |
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432 |
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433 |
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434 |
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435 |
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436 | SendStream.prototype.isFresh = function isFresh () {
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437 | return fresh(this.req.headers, {
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438 | 'etag': this.res.getHeader('ETag'),
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439 | 'last-modified': this.res.getHeader('Last-Modified')
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440 | })
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441 | }
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442 |
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443 |
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444 |
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445 |
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446 |
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447 |
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448 |
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449 |
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450 | SendStream.prototype.isRangeFresh = function isRangeFresh () {
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451 | var ifRange = this.req.headers['if-range']
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452 |
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453 | if (!ifRange) {
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454 | return true
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455 | }
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456 |
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457 |
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458 | if (ifRange.indexOf('"') !== -1) {
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459 | var etag = this.res.getHeader('ETag')
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460 | return Boolean(etag && ifRange.indexOf(etag) !== -1)
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461 | }
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462 |
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463 |
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464 | var lastModified = this.res.getHeader('Last-Modified')
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465 | return parseHttpDate(lastModified) <= parseHttpDate(ifRange)
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466 | }
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467 |
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468 |
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469 |
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470 |
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471 |
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472 |
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473 |
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474 |
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475 | SendStream.prototype.redirect = function redirect (path) {
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476 | var res = this.res
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477 |
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478 | if (hasListeners(this, 'directory')) {
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479 | this.emit('directory', res, path)
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480 | return
|
481 | }
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482 |
|
483 | if (this.hasTrailingSlash()) {
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484 | this.error(403)
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485 | return
|
486 | }
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487 |
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488 | var loc = encodeUrl(collapseLeadingSlashes(this.path + '/'))
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489 | var doc = createHtmlDocument('Redirecting', 'Redirecting to <a href="' + escapeHtml(loc) + '">' +
|
490 | escapeHtml(loc) + '</a>')
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491 |
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492 |
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493 | res.statusCode = 301
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494 | res.setHeader('Content-Type', 'text/html; charset=UTF-8')
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495 | res.setHeader('Content-Length', Buffer.byteLength(doc))
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496 | res.setHeader('Content-Security-Policy', "default-src 'none'")
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497 | res.setHeader('X-Content-Type-Options', 'nosniff')
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498 | res.setHeader('Location', loc)
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499 | res.end(doc)
|
500 | }
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501 |
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502 |
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503 |
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504 |
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505 |
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506 |
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507 |
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508 |
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509 |
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510 | SendStream.prototype.pipe = function pipe (res) {
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511 |
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512 | var root = this._root
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513 |
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514 |
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515 | this.res = res
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516 |
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517 |
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518 | var path = decode(this.path)
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519 | if (path === -1) {
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520 | this.error(400)
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521 | return res
|
522 | }
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523 |
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524 |
|
525 | if (~path.indexOf('\0')) {
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526 | this.error(400)
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527 | return res
|
528 | }
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529 |
|
530 | var parts
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531 | if (root !== null) {
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532 |
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533 | if (path) {
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534 | path = normalize('.' + sep + path)
|
535 | }
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536 |
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537 |
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538 | if (UP_PATH_REGEXP.test(path)) {
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539 | debug('malicious path "%s"', path)
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540 | this.error(403)
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541 | return res
|
542 | }
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543 |
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544 |
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545 | parts = path.split(sep)
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546 |
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547 |
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548 | path = normalize(join(root, path))
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549 | } else {
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550 |
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551 | if (UP_PATH_REGEXP.test(path)) {
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552 | debug('malicious path "%s"', path)
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553 | this.error(403)
|
554 | return res
|
555 | }
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556 |
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557 |
|
558 | parts = normalize(path).split(sep)
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559 |
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560 |
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561 | path = resolve(path)
|
562 | }
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563 |
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564 |
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565 | if (containsDotFile(parts)) {
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566 | var access = this._dotfiles
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567 |
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568 |
|
569 | if (access === undefined) {
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570 | access = parts[parts.length - 1][0] === '.'
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571 | ? (this._hidden ? 'allow' : 'ignore')
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572 | : 'allow'
|
573 | }
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574 |
|
575 | debug('%s dotfile "%s"', access, path)
|
576 | switch (access) {
|
577 | case 'allow':
|
578 | break
|
579 | case 'deny':
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580 | this.error(403)
|
581 | return res
|
582 | case 'ignore':
|
583 | default:
|
584 | this.error(404)
|
585 | return res
|
586 | }
|
587 | }
|
588 |
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589 |
|
590 | if (this._index.length && this.hasTrailingSlash()) {
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591 | this.sendIndex(path)
|
592 | return res
|
593 | }
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594 |
|
595 | this.sendFile(path)
|
596 | return res
|
597 | }
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598 |
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599 |
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600 |
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601 |
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602 |
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603 |
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604 |
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605 |
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606 | SendStream.prototype.send = function send (path, stat) {
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607 | var len = stat.size
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608 | var options = this.options
|
609 | var opts = {}
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610 | var res = this.res
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611 | var req = this.req
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612 | var ranges = req.headers.range
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613 | var offset = options.start || 0
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614 |
|
615 | if (headersSent(res)) {
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616 |
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617 | this.headersAlreadySent()
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618 | return
|
619 | }
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620 |
|
621 | debug('pipe "%s"', path)
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622 |
|
623 |
|
624 | this.setHeader(path, stat)
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625 |
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626 |
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627 | this.type(path)
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628 |
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629 |
|
630 | if (this.isConditionalGET()) {
|
631 | if (this.isPreconditionFailure()) {
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632 | this.error(412)
|
633 | return
|
634 | }
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635 |
|
636 | if (this.isCachable() && this.isFresh()) {
|
637 | this.notModified()
|
638 | return
|
639 | }
|
640 | }
|
641 |
|
642 |
|
643 | len = Math.max(0, len - offset)
|
644 | if (options.end !== undefined) {
|
645 | var bytes = options.end - offset + 1
|
646 | if (len > bytes) len = bytes
|
647 | }
|
648 |
|
649 |
|
650 | if (this._acceptRanges && BYTES_RANGE_REGEXP.test(ranges)) {
|
651 |
|
652 | ranges = parseRange(len, ranges, {
|
653 | combine: true
|
654 | })
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655 |
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656 |
|
657 | if (!this.isRangeFresh()) {
|
658 | debug('range stale')
|
659 | ranges = -2
|
660 | }
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661 |
|
662 |
|
663 | if (ranges === -1) {
|
664 | debug('range unsatisfiable')
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665 |
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666 |
|
667 | res.setHeader('Content-Range', contentRange('bytes', len))
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668 |
|
669 |
|
670 | return this.error(416, {
|
671 | headers: { 'Content-Range': res.getHeader('Content-Range') }
|
672 | })
|
673 | }
|
674 |
|
675 |
|
676 | if (ranges !== -2 && ranges.length === 1) {
|
677 | debug('range %j', ranges)
|
678 |
|
679 |
|
680 | res.statusCode = 206
|
681 | res.setHeader('Content-Range', contentRange('bytes', len, ranges[0]))
|
682 |
|
683 |
|
684 | offset += ranges[0].start
|
685 | len = ranges[0].end - ranges[0].start + 1
|
686 | }
|
687 | }
|
688 |
|
689 |
|
690 | for (var prop in options) {
|
691 | opts[prop] = options[prop]
|
692 | }
|
693 |
|
694 |
|
695 | opts.start = offset
|
696 | opts.end = Math.max(offset, offset + len - 1)
|
697 |
|
698 |
|
699 | res.setHeader('Content-Length', len)
|
700 |
|
701 |
|
702 | if (req.method === 'HEAD') {
|
703 | res.end()
|
704 | return
|
705 | }
|
706 |
|
707 | this.stream(path, opts)
|
708 | }
|
709 |
|
710 |
|
711 |
|
712 |
|
713 |
|
714 |
|
715 |
|
716 | SendStream.prototype.sendFile = function sendFile (path) {
|
717 | var i = 0
|
718 | var self = this
|
719 |
|
720 | debug('stat "%s"', path)
|
721 | fs.stat(path, function onstat (err, stat) {
|
722 | if (err && err.code === 'ENOENT' && !extname(path) && path[path.length - 1] !== sep) {
|
723 |
|
724 | return next(err)
|
725 | }
|
726 | if (err) return self.onStatError(err)
|
727 | if (stat.isDirectory()) return self.redirect(path)
|
728 | self.emit('file', path, stat)
|
729 | self.send(path, stat)
|
730 | })
|
731 |
|
732 | function next (err) {
|
733 | if (self._extensions.length <= i) {
|
734 | return err
|
735 | ? self.onStatError(err)
|
736 | : self.error(404)
|
737 | }
|
738 |
|
739 | var p = path + '.' + self._extensions[i++]
|
740 |
|
741 | debug('stat "%s"', p)
|
742 | fs.stat(p, function (err, stat) {
|
743 | if (err) return next(err)
|
744 | if (stat.isDirectory()) return next()
|
745 | self.emit('file', p, stat)
|
746 | self.send(p, stat)
|
747 | })
|
748 | }
|
749 | }
|
750 |
|
751 |
|
752 |
|
753 |
|
754 |
|
755 |
|
756 |
|
757 | SendStream.prototype.sendIndex = function sendIndex (path) {
|
758 | var i = -1
|
759 | var self = this
|
760 |
|
761 | function next (err) {
|
762 | if (++i >= self._index.length) {
|
763 | if (err) return self.onStatError(err)
|
764 | return self.error(404)
|
765 | }
|
766 |
|
767 | var p = join(path, self._index[i])
|
768 |
|
769 | debug('stat "%s"', p)
|
770 | fs.stat(p, function (err, stat) {
|
771 | if (err) return next(err)
|
772 | if (stat.isDirectory()) return next()
|
773 | self.emit('file', p, stat)
|
774 | self.send(p, stat)
|
775 | })
|
776 | }
|
777 |
|
778 | next()
|
779 | }
|
780 |
|
781 |
|
782 |
|
783 |
|
784 |
|
785 |
|
786 |
|
787 |
|
788 |
|
789 | SendStream.prototype.stream = function stream (path, options) {
|
790 |
|
791 | var finished = false
|
792 | var self = this
|
793 | var res = this.res
|
794 |
|
795 |
|
796 | var stream = fs.createReadStream(path, options)
|
797 | this.emit('stream', stream)
|
798 | stream.pipe(res)
|
799 |
|
800 |
|
801 | onFinished(res, function onfinished () {
|
802 | finished = true
|
803 | destroy(stream)
|
804 | })
|
805 |
|
806 |
|
807 | stream.on('error', function onerror (err) {
|
808 |
|
809 | if (finished) return
|
810 |
|
811 |
|
812 | finished = true
|
813 | destroy(stream)
|
814 |
|
815 |
|
816 | self.onStatError(err)
|
817 | })
|
818 |
|
819 |
|
820 | stream.on('end', function onend () {
|
821 | self.emit('end')
|
822 | })
|
823 | }
|
824 |
|
825 |
|
826 |
|
827 |
|
828 |
|
829 |
|
830 |
|
831 |
|
832 |
|
833 | SendStream.prototype.type = function type (path) {
|
834 | var res = this.res
|
835 |
|
836 | if (res.getHeader('Content-Type')) return
|
837 |
|
838 | var type = mime.lookup(path)
|
839 |
|
840 | if (!type) {
|
841 | debug('no content-type')
|
842 | return
|
843 | }
|
844 |
|
845 | var charset = mime.charsets.lookup(type)
|
846 |
|
847 | debug('content-type %s', type)
|
848 | res.setHeader('Content-Type', type + (charset ? '; charset=' + charset : ''))
|
849 | }
|
850 |
|
851 |
|
852 |
|
853 |
|
854 |
|
855 |
|
856 |
|
857 |
|
858 |
|
859 |
|
860 | SendStream.prototype.setHeader = function setHeader (path, stat) {
|
861 | var res = this.res
|
862 |
|
863 | this.emit('headers', res, path, stat)
|
864 |
|
865 | if (this._acceptRanges && !res.getHeader('Accept-Ranges')) {
|
866 | debug('accept ranges')
|
867 | res.setHeader('Accept-Ranges', 'bytes')
|
868 | }
|
869 |
|
870 | if (this._cacheControl && !res.getHeader('Cache-Control')) {
|
871 | var cacheControl = 'public, max-age=' + Math.floor(this._maxage / 1000)
|
872 |
|
873 | if (this._immutable) {
|
874 | cacheControl += ', immutable'
|
875 | }
|
876 |
|
877 | debug('cache-control %s', cacheControl)
|
878 | res.setHeader('Cache-Control', cacheControl)
|
879 | }
|
880 |
|
881 | if (this._lastModified && !res.getHeader('Last-Modified')) {
|
882 | var modified = stat.mtime.toUTCString()
|
883 | debug('modified %s', modified)
|
884 | res.setHeader('Last-Modified', modified)
|
885 | }
|
886 |
|
887 | if (this._etag && !res.getHeader('ETag')) {
|
888 | var val = etag(stat)
|
889 | debug('etag %s', val)
|
890 | res.setHeader('ETag', val)
|
891 | }
|
892 | }
|
893 |
|
894 |
|
895 |
|
896 |
|
897 |
|
898 |
|
899 |
|
900 |
|
901 | function clearHeaders (res) {
|
902 | var headers = getHeaderNames(res)
|
903 |
|
904 | for (var i = 0; i < headers.length; i++) {
|
905 | res.removeHeader(headers[i])
|
906 | }
|
907 | }
|
908 |
|
909 |
|
910 |
|
911 |
|
912 |
|
913 |
|
914 |
|
915 | function collapseLeadingSlashes (str) {
|
916 | for (var i = 0; i < str.length; i++) {
|
917 | if (str[i] !== '/') {
|
918 | break
|
919 | }
|
920 | }
|
921 |
|
922 | return i > 1
|
923 | ? '/' + str.substr(i)
|
924 | : str
|
925 | }
|
926 |
|
927 |
|
928 |
|
929 |
|
930 |
|
931 |
|
932 |
|
933 | function containsDotFile (parts) {
|
934 | for (var i = 0; i < parts.length; i++) {
|
935 | var part = parts[i]
|
936 | if (part.length > 1 && part[0] === '.') {
|
937 | return true
|
938 | }
|
939 | }
|
940 |
|
941 | return false
|
942 | }
|
943 |
|
944 |
|
945 |
|
946 |
|
947 |
|
948 |
|
949 |
|
950 |
|
951 |
|
952 | function contentRange (type, size, range) {
|
953 | return type + ' ' + (range ? range.start + '-' + range.end : '*') + '/' + size
|
954 | }
|
955 |
|
956 |
|
957 |
|
958 |
|
959 |
|
960 |
|
961 |
|
962 |
|
963 |
|
964 | function createHtmlDocument (title, body) {
|
965 | return '<!DOCTYPE html>\n' +
|
966 | '<html lang="en">\n' +
|
967 | '<head>\n' +
|
968 | '<meta charset="utf-8">\n' +
|
969 | '<title>' + title + '</title>\n' +
|
970 | '</head>\n' +
|
971 | '<body>\n' +
|
972 | '<pre>' + body + '</pre>\n' +
|
973 | '</body>\n' +
|
974 | '</html>\n'
|
975 | }
|
976 |
|
977 |
|
978 |
|
979 |
|
980 |
|
981 |
|
982 |
|
983 |
|
984 |
|
985 |
|
986 |
|
987 | function decode (path) {
|
988 | try {
|
989 | return decodeURIComponent(path)
|
990 | } catch (err) {
|
991 | return -1
|
992 | }
|
993 | }
|
994 |
|
995 |
|
996 |
|
997 |
|
998 |
|
999 |
|
1000 |
|
1001 |
|
1002 |
|
1003 | function getHeaderNames (res) {
|
1004 | return typeof res.getHeaderNames !== 'function'
|
1005 | ? Object.keys(res._headers || {})
|
1006 | : res.getHeaderNames()
|
1007 | }
|
1008 |
|
1009 |
|
1010 |
|
1011 |
|
1012 |
|
1013 |
|
1014 |
|
1015 |
|
1016 |
|
1017 |
|
1018 |
|
1019 |
|
1020 |
|
1021 | function hasListeners (emitter, type) {
|
1022 | var count = typeof emitter.listenerCount !== 'function'
|
1023 | ? emitter.listeners(type).length
|
1024 | : emitter.listenerCount(type)
|
1025 |
|
1026 | return count > 0
|
1027 | }
|
1028 |
|
1029 |
|
1030 |
|
1031 |
|
1032 |
|
1033 |
|
1034 |
|
1035 |
|
1036 |
|
1037 | function headersSent (res) {
|
1038 | return typeof res.headersSent !== 'boolean'
|
1039 | ? Boolean(res._header)
|
1040 | : res.headersSent
|
1041 | }
|
1042 |
|
1043 |
|
1044 |
|
1045 |
|
1046 |
|
1047 |
|
1048 |
|
1049 |
|
1050 |
|
1051 | function normalizeList (val, name) {
|
1052 | var list = [].concat(val || [])
|
1053 |
|
1054 | for (var i = 0; i < list.length; i++) {
|
1055 | if (typeof list[i] !== 'string') {
|
1056 | throw new TypeError(name + ' must be array of strings or false')
|
1057 | }
|
1058 | }
|
1059 |
|
1060 | return list
|
1061 | }
|
1062 |
|
1063 |
|
1064 |
|
1065 |
|
1066 |
|
1067 |
|
1068 |
|
1069 |
|
1070 | function parseHttpDate (date) {
|
1071 | var timestamp = date && Date.parse(date)
|
1072 |
|
1073 | return typeof timestamp === 'number'
|
1074 | ? timestamp
|
1075 | : NaN
|
1076 | }
|
1077 |
|
1078 |
|
1079 |
|
1080 |
|
1081 |
|
1082 |
|
1083 |
|
1084 |
|
1085 | function parseTokenList (str) {
|
1086 | var end = 0
|
1087 | var list = []
|
1088 | var start = 0
|
1089 |
|
1090 |
|
1091 | for (var i = 0, len = str.length; i < len; i++) {
|
1092 | switch (str.charCodeAt(i)) {
|
1093 | case 0x20:
|
1094 | if (start === end) {
|
1095 | start = end = i + 1
|
1096 | }
|
1097 | break
|
1098 | case 0x2c:
|
1099 | list.push(str.substring(start, end))
|
1100 | start = end = i + 1
|
1101 | break
|
1102 | default:
|
1103 | end = i + 1
|
1104 | break
|
1105 | }
|
1106 | }
|
1107 |
|
1108 |
|
1109 | list.push(str.substring(start, end))
|
1110 |
|
1111 | return list
|
1112 | }
|
1113 |
|
1114 |
|
1115 |
|
1116 |
|
1117 |
|
1118 |
|
1119 |
|
1120 |
|
1121 |
|
1122 | function setHeaders (res, headers) {
|
1123 | var keys = Object.keys(headers)
|
1124 |
|
1125 | for (var i = 0; i < keys.length; i++) {
|
1126 | var key = keys[i]
|
1127 | res.setHeader(key, headers[key])
|
1128 | }
|
1129 | }
|