Work in Progress: Reply By Email:

- Add support classes and settings to enable reply by email
- Split out Email builder to be more OO, add many specs

app/models/email_log.rb

@@ -3,6 +3,13 @@ class EmailLog < ActiveRecord::Base
   validates_presence_of :email_type
   validates_presence_of :to_address
 
+  before_create do
+    # We only generate a reply
+    if SiteSetting.reply_by_email_enabled?
+      self.reply_key = SecureRandom.hex(16)
+    end
+  end
+
   after_create do
     # Update last_emailed_at if the user_id is present
     User.update_all("last_emailed_at = CURRENT_TIMESTAMP", id: user_id) if user_id.present?

app/models/site_setting.rb

@@ -188,6 +188,10 @@ class SiteSetting < ActiveRecord::Base
   setting(:regular_requires_likes_given, 1)
   setting(:regular_requires_topic_reply_count, 3)
 
+  # Reply by Email Settings
+  setting(:reply_by_email_enabled, false)
+  setting(:reply_by_email_address, nil)
+
   # Entropy checks
   setting(:title_min_entropy, 10)
   setting(:body_min_entropy, 7)