Added a test webhook for MailChimp.

server/routes/mail.coffee

@@ -0,0 +1,53 @@
+mail = require '../commons/mail'
+map = _.invert mail.MAILCHIMP_GROUP_MAP
+User = require '../users/User.coffee'
+errors = require '../commons/errors'
+
+options =
+  from: 'scott@codecombat.com'
+  to: 'scott@codecombat.com'
+  replyTo: 'scott@codecombat.com'
+  subject: 'Bad log'
+  text: ''
+
+badLog = (text) ->
+  options.text = text
+  mail.transport.sendMail options, (error) ->
+    console.error "Error sending mail: #{error.message or error}" if error
+  
+module.exports.setupRoutes = (app) ->
+  app.all '/mail/webhook', (req, res) ->
+    post = req.body
+    unless post['data[email]'] is 'sderickson+test@gmail.com'
+      badLog("Ignoring because no email: #{JSON.stringify(req.body, null, '\t')}")
+      return res.end()
+    return handleProfileUpdate(post, res) if post.type is 'profile'
+    return handleUnsubscribe(post, res) if post.type is 'unsubscribe'
+    console.log 'unrecognized...', post
+    return res.end()
+    
+handleProfileUpdate: (data, res) ->
+  User.findOne {'mailChimp.euid':data['data[id]']}, (err, user) ->
+    return errors.serverError(res) if err
+    
+    groups = data['data[merges][INTERESTS]'].split(', ')
+    groups = (map[g] for g in groups when map[g])
+    user.set 'emailSubscriptions', groups
+    
+    mailChimpInfo = user.get 'mailChimp'
+    mailChimpInfo.email = data['data[email]']
+    user.set 'mailChimp', mailChimpInfo
+
+    badLog("Updating user object to: #{JSON.stringify(user.toObject(), null, '\t')}")
+    res.end()
+    
+    
+handleUnsubscribe: (data) ->
+  User.findOne {'mailChimp.euid':data['data[id]']}, (err, user) ->
+    return errors.serverError(res) if err
+    
+    user.set 'emailSubscriptions', []
+    user.set 'mailChimp', undefined
+
+    badLog("Unsubscribing user object to: #{JSON.stringify(user.toObject(), null, '\t')}")
+    res.end()