classify session

backend/session.coffee

@@ -11,7 +11,8 @@ EXPIRY =
   login:   1 * 60 * 60 * 24 * 7 * 4
 
 
-FFTCGSESSION = () ->
+class FFTCGSESSION
+  constructor: ->
     @db = redis.createClient
       host: 'redis'
       port: 6379
@@ -19,12 +20,8 @@ FFTCGSESSION = () ->
     @db.on 'error', (err) ->
       logger.error err.message
 
-  return
-
-FFTCGSESSION::start = (data) ->
-  that = @
-
-  new Promise (resolve) ->
+  start: (data) ->
+    new Promise (resolve) =>
       # hash data
       hmac = crypto.createHmac 'sha256', Math.random().toString()
       hmac.update (JSON.stringify data)
@@ -32,20 +29,18 @@ FFTCGSESSION::start = (data) ->
       logger.debug 'digest', digest
 
       # push (hash, data) into DB for the configured timespan
-    that.db.setex digest, EXPIRY.login, (JSON.stringify data), (err) ->
+      @db.setex digest, EXPIRY.login, (JSON.stringify data), (err) ->
         resolve digest
 
-FFTCGSESSION::check = (digest) ->
-  that = @
-
-  new Promise (resolve, reject) ->
+  check: (digest) ->
+    new Promise (resolve, reject) =>
       # refresh expiry timer on digest
-    that.db.expire digest, EXPIRY.login, (err, res) ->
+      @db.expire digest, EXPIRY.login, (err, res) =>
         if res == 0
           reject null
 
         else
-        that.db.get digest, (err, res) ->
+          @db.get digest, (err, res) ->
             resolve JSON.parse res
 
 module.exports = FFTCGSESSION