Add discord server support

app/controllers/static_controller.rb

@@ -18,4 +18,20 @@ class StaticController < ApplicationController
 
   def site_map
   end
+
+  def discord
+    unless CurrentUser.can_discord?
+      access_denied message: "You must have an account for at least one week in order to join the Discord server."
+      return
+    end
+    if request.post?
+      time = (Time.now + 5.minute).to_i
+      secret = Danbooru.config.discord_secret
+      # TODO: Proper HMAC
+      hashed_values = Digest::SHA256.hexdigest("#{CurrentUser.name} #{CurrentUser.id} #{time} #{secret}")
+      user_hash = "?user_id=#{CurrentUser.id}&username=#{CurrentUser.name}&time=#{time}&hash=#{hashed_values}"
+
+      redirect_to(Danbooru.config.discord_site + user_hash)
+    end
+  end
 end

app/models/user.rb

@@ -505,6 +505,10 @@ class User < ApplicationRecord
       older_than 7.days
     end
 
+    def can_discord?
+      older_than 7.days
+    end
+
     def can_view_flagger?(flagger_id)
       is_moderator? || flagger_id == id
     end

app/views/layouts/_main_links.html.erb

@@ -9,10 +9,6 @@
   <%= nav_link_to("Artists", artists_path) %>
   <%= nav_link_to("Tags", tags_path) %>
   <%= nav_link_to("Blips", blips_path) %>
-  <% if CurrentUser.is_janitor? %>
-    <%= nav_link_to("Aliases", tag_aliases_path) %>
-    <%= nav_link_to("Implications", tag_implications_path) %>
-  <% end %>
   <%= nav_link_to("Pools", pools_path) %>
   <%= nav_link_to("Sets", post_sets_path) %>
   <%= nav_link_to("Wiki", wiki_pages_path(:title => "help:home")) %>
@@ -20,5 +16,6 @@
   <% if CurrentUser.is_moderator? %>
     <%= nav_link_to("Dashboard", moderator_dashboard_path) %>
   <% end %>
+  <%= nav_link_to("Discord", discord_get_path) %>
   <%= nav_link_to("More »", site_map_path) %>
 </menu>

config/danbooru_default_config.rb

@@ -293,6 +293,14 @@ fart'
       false
     end
 
+    def discord_site
+      ""
+    end
+
+    def discord_secret
+      ""
+    end
+
     # Maximum size of an upload. If you change this, you must also change
     # `client_max_body_size` in your nginx.conf.
     def max_file_size

config/routes.rb

@@ -477,6 +477,8 @@ Rails.application.routes.draw do
   get "/static/terms_of_service" => "static#terms_of_service", :as => "terms_of_service"
   post "/static/accept_terms_of_service" => "static#accept_terms_of_service", :as => "accept_terms_of_service"
   get "/static/contact" => "static#contact", :as => "contact"
+  get "/static/discord" => "static#discord", as: "discord_get"
+  post "/static/discord" => "static#discord", as: "discord_post"
   get "/meta_searches/tags" => "meta_searches#tags", :as => "meta_searches_tags"
 
   get "/intro" => redirect("/explore/posts/intro")