Work in progress, keeping avatars locally

This introduces a new model to store the avatars and 3 uploads per user (gravatar, system and custom)

user can then pick which they want.

config/initializers/06-mini_profiler.rb

@@ -22,6 +22,7 @@ if defined?(Rack::MiniProfiler)
     (path !~ /^\/message-bus/) &&
     (path !~ /topics\/timings/) &&
     (path !~ /assets/) &&
+    (path !~ /\/avatar\//) &&
     (path !~ /qunit/) &&
     (path !~ /srv\/status/) &&
     (path !~ /commits-widget/) &&

config/locales/client.en.yml

@@ -307,10 +307,12 @@ en:
       change_avatar:
         title: "Change your avatar"
         gravatar: "<a href='//gravatar.com/emails' target='_blank'>Gravatar</a>, based on"
-        gravatar_title: "Change your avatar on Gravatar's website"
+        refresh_gravatar_title: "Refresh your Gravatar"
+        letter_based: "System assigned avatar"
         uploaded_avatar: "Custom picture"
         uploaded_avatar_empty: "Add a custom picture"
         upload_title: "Upload your picture"
+        upload_picture: "Upload Picture"
         image_is_not_a_square: "Warning: we've cropped your image; it is not square."
 
       change_profile_background:

config/locales/server.en.yml

@@ -863,6 +863,7 @@ en:
 
     allow_uploaded_avatars: "Allow users to upload their custom avatars"
     allow_animated_avatars: "Allow users to use animated gif for avatars. WARNING: it is highly recommended to run the avatars:regenerate rake task after changing that setting."
+    automatically_download_gravatars: "Download gravatars for users upon account creation or email change"
     digest_topics: "The maximum amount of topics to display in an email digest"
     digest_min_excerpt_length: "How many characters we're aiming for for each post in the email digest"
     default_digest_email_frequency: "How often users receive digest emails by default. They can change this setting in their preferences."

config/routes.rb

@@ -366,6 +366,8 @@ Discourse::Application.routes.draw do
   post "draft" => "draft#update"
   delete "draft" => "draft#destroy"
 
+  get "avatar/:username/:size/:version.png" => "avatar#show", format: false
+
   get "cdn_asset/:site/*path" => "static#cdn_asset", format: false
 
   get "robots.txt" => "robots_txt#index"

config/site_settings.yml

@@ -329,14 +329,13 @@ files:
   allow_profile_backgrounds:
     client: true
     default: true
+  automatically_download_gravatars: true
   allow_uploaded_avatars:
     client: true
     default: true
   allow_animated_avatars:
     client: true
     default: false
-  detect_custom_avatars: true
-  max_daily_gravatar_crawls: 500
 
 trust:
   default_trust_level: 0
@@ -547,7 +546,11 @@ uncategorized:
     default: ''
 
   enable_cdn_js_debugging: true
+
   show_create_topics_notice:
     client: true
     default: true
 
+  enable_system_avatars:
+    hidden: true
+    default: true