Add default values for Auth properties + minor refactoring

lib/auth.js

@@ -9,11 +9,12 @@ var md5 = helpers.md5
 
 
 function Auth () {
-  this.hasAuth = undefined
-  this.sentAuth = undefined
-  this.bearerToken = undefined
-  this.user = undefined
-  this.pass = undefined
+  // define all public properties here
+  this.hasAuth = false
+  this.sentAuth = false
+  this.bearerToken = null
+  this.user = null
+  this.pass = null
 }
 
 Auth.prototype.basic = function (user, pass, sendImmediately) {
@@ -117,22 +118,16 @@ Auth.prototype.response = function (method, path, headers) {
   var authVerb = authHeader && authHeader.split(' ')[0].toLowerCase()
   // debug('reauth', authVerb)
 
-  var result = null
   switch (authVerb) {
     case 'basic':
-      result = self.basic(self.user, self.pass, true)
-      break
+      return self.basic(self.user, self.pass, true)
 
     case 'bearer':
-      result = self.bearer(self.bearerToken, true)
-      break
+      return self.bearer(self.bearerToken, true)
 
     case 'digest':
-      result = self.digest(method, path, authHeader)
-      break
+      return self.digest(method, path, authHeader)
   }
-
-  return result
 }
 
 exports.Auth = Auth