Refactor code to use the new utilities module

src/hmac-sha1.coffee

@@ -1,16 +1,6 @@
-crypto    = require('crypto')
+crypto    = require 'crypto'
 url       = require 'url'
-
-
-
-# Special encode is our encoding method that implements
-#  the encoding of characters not defaulted by encodeURI
-#
-#  Specifically ' and !
-#
-# Returns the encoded string
-special_encode = (string) ->
-  encodeURIComponent(string).replace(/[!'()]/g, escape).replace(/\*/g, '%2A')
+utils     = require './utils'
 
 
 # Cleaning invloves:
@@ -26,7 +16,7 @@ _clean_request_body = (body, query) ->
   out = []
 
   encodeParam = (key, val) ->
-    return "#{key}=#{special_encode(val)}"
+    return "#{key}=#{utils.special_encode(val)}"
 
   cleanParams = (params) ->
     return if typeof params isnt 'object'
@@ -44,7 +34,7 @@ _clean_request_body = (body, query) ->
   cleanParams body
   cleanParams query
 
-  special_encode out.sort().join('&')
+  utils.special_encode out.sort().join('&')
 
 
 
@@ -56,7 +46,7 @@ class HMAC_SHA1
   build_signature_raw: (req_url, parsed_url, method, params, consumer_secret, token) ->
     sig = [
       method.toUpperCase()
-      special_encode req_url
+      utils.special_encode req_url
       _clean_request_body params, parsed_url.query
     ]
 

src/outcome-service.coffee

@@ -9,6 +9,7 @@ xml2js       = require 'xml2js'
 xml_builder  = require 'xmlbuilder'
 
 errors       = require './errors'
+utils        = require './utils'
 
 
 
@@ -144,7 +145,7 @@ class OutcomeService
 
     headers.oauth_signature = @provider.signer.build_signature_raw @service_url_oauth, @service_url_parts, 'POST', headers, @provider.consumer_secret
 
-    Authorization:     'OAuth realm="",' + ("#{key}=\"#{encodeURIComponent(val)}\"" for key, val of headers).join ','
+    Authorization:     'OAuth realm="",' + ("#{key}=\"#{utils.special_encode(val)}\"" for key, val of headers).join ','
     'Content-Type':    'application/xml'
     'Content-Length':  body.length