further optimize raw email feature

app/assets/javascripts/discourse/controllers/raw-email.js.es6

@@ -14,10 +14,10 @@ import ObjectController from 'discourse/controllers/object';
 export default ObjectController.extend(ModalFunctionality, {
   raw_email: "",
 
-  loadEmail: function(postId) {
+  loadRawEmail: function(postId) {
     var self = this;
-    Discourse.Post.load(postId).then(function (result) {
-      self.set("raw_email", result.get('raw_email'));
+    Discourse.Post.loadRawEmail(postId).then(function (raw_email) {
+      self.set("raw_email", raw_email);
     });
   }
 

app/assets/javascripts/discourse/models/_post.js

@@ -490,6 +490,12 @@ Discourse.Post.reopenClass({
     });
   },
 
+  loadRawEmail: function(postId) {
+    return Discourse.ajax("/posts/" + postId + "/raw-email").then(function (result) {
+      return result.raw_email;
+    });
+  },
+
   load: function(postId) {
     return Discourse.ajax("/posts/" + postId + ".json").then(function (result) {
       return Discourse.Post.create(result);

app/assets/javascripts/discourse/routes/topic_route.js

@@ -75,7 +75,7 @@ Discourse.TopicRoute = Discourse.Route.extend({
 
     showRawEmail: function(post) {
       Discourse.Route.showModal(this, 'raw-email', post);
-      this.controllerFor('raw_email').loadEmail(post.get("id"));
+      this.controllerFor('raw_email').loadRawEmail(post.get("id"));
     },
 
     mergeTopic: function() {

app/controllers/posts_controller.rb

@@ -30,6 +30,12 @@ class PostsController < ApplicationController
     render json: {cooked: post.cooked}
   end
 
+  def raw_email
+    guardian.ensure_can_view_raw_email!
+    post = Post.find(params[:id].to_i)
+    render json: {raw_email: post.raw_email}
+  end
+
   def short_link
     post = Post.find(params[:post_id].to_i)
     # Stuff the user in the request object, because that's what IncomingLink wants

app/serializers/post_serializer.rb

@@ -51,8 +51,7 @@ class PostSerializer < BasicPostSerializer
              :wiki,
              :user_custom_fields,
              :static_doc,
-             :via_email,
-             :raw_email
+             :via_email
 
   def topic_slug
     object.try(:topic).try(:slug)

config/locales/client.en.yml

@@ -1384,7 +1384,6 @@ en:
     history: "History"
     changed_by: "by {{author}}"
 
-
     raw_email:
       title: "Raw Email"
       not_available: "Not available!"

config/routes.rb

@@ -416,6 +416,7 @@ Discourse::Application.routes.draw do
   get "/posts/:id/cooked" => "posts#cooked"
   get "/posts/:id/expand-embed" => "posts#expand_embed"
   get "/posts/:id/raw" => "posts#markdown_id"
+  get "/posts/:id/raw-email" => "posts#raw_email"
   get "raw/:topic_id(/:post_number)" => "posts#markdown_num"
 
   resources :invites do

lib/guardian/post_guardian.rb

@@ -193,6 +193,10 @@ module PostGuardian
     is_staff?
   end
 
+  def can_view_raw_email?
+    is_staff?
+  end
+
   def can_unhide?(post)
     post.try(:hidden) && is_staff?
   end