Added /identify page.

app/core/Router.coffee

@@ -92,6 +92,8 @@ module.exports = class CocoRouter extends Backbone.Router
     'i18n/campaign/:handle': go('i18n/I18NEditCampaignView')
     'i18n/poll/:handle': go('i18n/I18NEditPollView')
 
+    'identify': go('user/IdentifyView')
+
     'legal': go('LegalView')
 
     'multiplayer': go('MultiplayerView')

app/templates/user/identify-view.jade

@@ -0,0 +1,21 @@
+extends /templates/base
+
+block content
+
+  if callbackURL && callbackSource && callbackID
+    h3 Share your username?
+    p
+      | #{callbackSource} would like to know that you are #{me.get('name') || 'you'} on CodeCombat.
+      if me.get('anonymous')
+        br
+        button.btn.btn-lg.btn-default.header-font.login-button(data-i18n="login.log_in")
+      else if me.get('name')
+        a.spl.spr(href="#{callbackURL}") Click here
+        | to share your username.
+      else
+        | But you don't have a username yet. Set one
+        a.spl(href="/account/settings") here
+        | .
+  else
+    h3 Invalid identify URL.
+    p callbackID, callbackURL, and callbackSource are needed.

app/views/user/IdentifyView.coffee

@@ -0,0 +1,14 @@
+RootView = require 'views/core/RootView'
+{me} = require 'core/auth'
+template = require 'templates/user/identify-view'
+
+module.exports = class IdentifyView extends RootView
+  id: 'identify-view'
+  template: template
+
+  getRenderData: ->
+    context = super()
+    context.callbackID = @getQueryVariable 'id'
+    context.callbackURL = @getQueryVariable('callback') + "?id=#{context.callbackID}&username=#{me.get('name')}"
+    context.callbackSource = @getQueryVariable 'source'
+    context