node_modules/caseless/index.js

   1 function Caseless (dict) {
   2   this.dict = dict || {}
   3 }
   4 Caseless.prototype.set = function (name, value, clobber) {
   5   if (typeof name === 'object') {
   6     for (var i in name) {
   7       this.set(i, name[i], value)
   8     }
   9   } else {
  10     if (typeof clobber === 'undefined') clobber = true
  11     var has = this.has(name)
  12
  13     if (!clobber && has) this.dict[has] = this.dict[has] + ',' + value
  14     else this.dict[has || name] = value
  15     return has
  16   }
  17 }
  18 Caseless.prototype.has = function (name) {
  19   var keys = Object.keys(this.dict)
  20     , name = name.toLowerCase()
  21     ;
  22   for (var i=0;i<keys.length;i++) {
  23     if (keys[i].toLowerCase() === name) return keys[i]
  24   }
  25   return false
  26 }
  27 Caseless.prototype.get = function (name) {
  28   name = name.toLowerCase()
  29   var result, _key
  30   var headers = this.dict
  31   Object.keys(headers).forEach(function (key) {
  32     _key = key.toLowerCase()
  33     if (name === _key) result = headers[key]
  34   })
  35   return result
  36 }
  37 Caseless.prototype.swap = function (name) {
  38   var has = this.has(name)
  39   if (!has) throw new Error('There is no header than matches "'+name+'"')
  40   this.dict[name] = this.dict[has]
  41   delete this.dict[has]
  42 }
  43 Caseless.prototype.del = function (name) {
  44   var has = this.has(name)
  45   return delete this.dict[has || name]
  46 }
  47
  48 module.exports = function (dict) {return new Caseless(dict)}
  49 module.exports.httpify = function (resp, headers) {
  50   var c = new Caseless(headers)
  51   resp.setHeader = function (key, value, clobber) {
  52     if (typeof value === 'undefined') return
  53     return c.set(key, value, clobber)
  54   }
  55   resp.hasHeader = function (key) {
  56     return c.has(key)
  57   }
  58   resp.getHeader = function (key) {
  59     return c.get(key)
  60   }
  61   resp.removeHeader = function (key) {
  62     return c.del(key)
  63   }
  64   resp.headers = c.dict
  65   return c
  66 }