cookie.js

module.exports = Cookie

function Cookie(name, value, attrs) {
  value || (this.expires = new Date(0))

  this.name = name
  this.value = value || ""

  for (var name in attrs) this[name] = attrs[name]
}

Cookie.prototype = {
  path: "/",
  expires: undefined,
  domain: undefined,
  httpOnly: true,
  secure: false,
  overwrite: true,

  toString: function() {
    return this.name + "=" + this.value
  },

  toHeader: function() {
    var header = this.toString()

    if (this.maxage) this.expires = new Date(Date.now() + this.maxage);

    if (this.path     ) header += "; path=" + this.path
    if (this.expires  ) header += "; expires=" + this.expires.toUTCString()
    if (this.domain   ) header += "; domain=" + this.domain
    if (this.secure   ) header += "; secure"
    if (this.httpOnly ) header += "; httponly"

    return header
  }
}