Add config options to disable comments and the forum.

Add options to disable comments, the forum, and autocomplete. This is
for personal boorus and potentially for safe mode. Note that disabling
the forum may cause difficulties with creating and approving BURs.

Disabling comments and the forum merely hides them from most areas,
rather than completely removing them.

app/controllers/comments_controller.rb

@@ -4,6 +4,10 @@ class CommentsController < ApplicationController
   respond_to :html, :xml, :json, :atom
   respond_to :js, only: [:new, :update, :destroy, :undelete]
 
+  before_action if: -> { request.format.html? && !Danbooru.config.comments_enabled?.to_s.truthy? } do
+    redirect_to root_path
+  end
+
   rate_limit :create, rate: 1.0/1.minute, burst: 50
 
   def index

app/controllers/forum_topics_controller.rb

@@ -3,7 +3,11 @@
 class ForumTopicsController < ApplicationController
   respond_to :html, :xml, :json
   respond_to :atom, only: [:index, :show]
+
   before_action :normalize_search, :only => :index
+  before_action if: -> { request.format.html? && !Danbooru.config.forum_enabled?.to_s.truthy? } do
+    redirect_to root_path
+  end
 
   rate_limit :create, rate: 1.0/1.minute, burst: 50
 

app/logical/autocomplete_service.rb

@@ -28,23 +28,27 @@ class AutocompleteService
 
   TAG_PREFIXES = TagCategory.mapping.keys.map { |prefix| prefix + ":" }
 
-  attr_reader :query, :type, :limit, :current_user
+  attr_reader :query, :type, :limit, :current_user, :enabled
+  alias_method :enabled?, :enabled
 
   # Perform completion for the given search type and query.
   # @param query [String] the string being completed
   # @param type [String] the type of completion being performed
   # @param current_user [User] the user we're performing completion for
   # @param limit [Integer] the max number of results to return
-  def initialize(query, type, current_user: User.anonymous, limit: 10)
+  def initialize(query, type, current_user: User.anonymous, limit: 10, enabled: Danbooru.config.autocomplete_enabled?.to_s.truthy?)
     @query = query.to_s
     @type = type.to_s.to_sym
     @current_user = current_user
     @limit = limit
+    @enabled = enabled
   end
 
   # Return the results of the completion.
   # @return [Array<Hash>] the autocomplete results
   def autocomplete_results
+    return [] if !enabled?
+
     case type
     when :tag_query
       autocomplete_tag_query

app/logical/rate_limiter.rb

@@ -16,7 +16,7 @@ class RateLimiter
   attr_reader :action, :keys, :cost, :rate, :burst, :enabled
   alias_method :enabled?, :enabled
 
-  def initialize(action, keys = ["*"], cost: 1, rate: 1, burst: 1, enabled: Danbooru.config.rate_limits_enabled?)
+  def initialize(action, keys = ["*"], cost: 1, rate: 1, burst: 1, enabled: Danbooru.config.rate_limits_enabled?.to_s.truthy?)
     @action = action
     @keys = keys
     @cost = cost

app/views/layouts/default.html.erb

@@ -87,13 +87,13 @@
         <% end %>
 
         <%= nav_link_to("Posts", posts_path) %>
-        <%= nav_link_to("Comments", comments_path) %>
+        <%= nav_link_to("Comments", comments_path) if Danbooru.config.comments_enabled?.to_s.truthy? %>
         <%= nav_link_to("Notes", notes_path) %>
         <%= nav_link_to("Artists", artists_path) %>
         <%= nav_link_to("Tags", tags_path) %>
         <%= nav_link_to("Pools", gallery_pools_path) %>
         <%= nav_link_to("Wiki", wiki_page_path("help:home")) %>
-        <%= nav_link_to("Forum", forum_topics_path, :class => (CurrentUser.has_forum_been_updated? ? "forum-updated" : nil)) %>
+        <%= nav_link_to("Forum", forum_topics_path, class: ("forum-updated" if CurrentUser.has_forum_been_updated?)) if Danbooru.config.forum_enabled?.to_s.truthy? %>
 
         <% if CurrentUser.is_moderator? %>
           <%= nav_link_to("Reports", moderation_reports_path, :class => (ModerationReport.where(status: "pending").present? ? "reports-pending" : nil)) %>

app/views/posts/index.html.erb

@@ -48,7 +48,9 @@
       <li><%= link_to "Random", random_posts_path(tags: params[:tags]), id: "random-post", "data-shortcut": "r", rel: "nofollow" %></li>
       <% if @post_set.post_query.has_single_tag? %>
         <li><%= link_to "History", post_versions_path(search: { changed_tags: @post_set.post_query.tag_name }), rel: "nofollow" %></li>
-        <li><%= link_to "Discussions", forum_posts_path(search: { linked_to: @post_set.post_query.tag_name }), rel: "nofollow" %></li>
+        <% if Danbooru.config.forum_enabled?.to_s.truthy? %>
+          <li><%= link_to "Discussions", forum_posts_path(search: { linked_to: @post_set.post_query.tag_name }), rel: "nofollow" %></li>
+        <% end %>
       <% end %>
       <li><%= link_to "Count", posts_counts_path(tags: params[:tags]), rel: "nofollow" %></li>
     </ul>

app/views/posts/show.html+tooltip.erb

@@ -11,7 +11,7 @@
     <%= upvote_icon %>
   </span>
 
-  <% if @post.last_commented_at.present? %>
+  <% if Danbooru.config.comments_enabled?.to_s.truthy? && @post.last_commented_at.present? %>
     <span class="post-tooltip-comments post-tooltip-info">
       <span><%= @post.comments.count %></span>
       <%= comments_icon(class: "fa-xs") %>

app/views/posts/show.html.erb

@@ -1,7 +1,9 @@
 <% page_title @post.presenter.humanized_essential_tag_string %>
 <% meta_description "View this #{@post.image_width}x#{@post.image_height} #{number_to_human_size(@post.file_size)} image" %>
 <% canonical_url post_url(@post, host: Danbooru.config.hostname) %>
-<% atom_feed_tag "Comments for post ##{@post.id}", comments_url(:atom, search: { post_id: @post.id }) %>
+<% if Danbooru.config.comments_enabled?.to_s.truthy? %>
+  <% atom_feed_tag "Comments for post ##{@post.id}", comments_url(:atom, search: { post_id: @post.id }) %>
+<% end %>
 
 <%= render "posts/partials/common/secondary_links" %>
 
@@ -322,7 +324,9 @@
   <% end %>
 
   <menu id="post-sections" class="mb-4">
-    <li class="active"><a href="#comments">Comments</a></li>
+    <% if Danbooru.config.comments_enabled?.to_s.truthy? %>
+      <li class="active"><a href="#comments">Comments</a></li>
+    <% end %>
 
     <% if RecommenderService.available_for_post?(@post) %>
       <li><a href="#recommended">Recommended</a></li>
@@ -339,9 +343,11 @@
     </section>
   <% end %>
 
-  <section id="comments">
-    <%= render_comment_section(@post, current_user: CurrentUser.user) %>
-  </section>
+  <% if Danbooru.config.comments_enabled?.to_s.truthy? %>
+    <section id="comments">
+      <%= render_comment_section(@post, current_user: CurrentUser.user) %>
+    </section>
+  <% end %>
 
   <section id="notes" style="display: none;">
     <% if @post.has_notes? %>

app/views/static/site_map.html.erb

@@ -77,22 +77,26 @@
       </ul>
     </section>
     <section class="flex-auto space-y-4">
-      <ul>
-        <li><h2>Comments</h2></li>
-        <li><%= link_to_wiki "Help", "help:comments" %></li>
-        <li><%= link_to("Listing", comments_path) %></li>
-        <li><%= link_to("Search", search_comments_path) %></li>
-        <li><%= link_to("Votes", comment_votes_path) %></li>
-        <li><%= link_to("RSS", comments_path(:atom)) %></li>
-      </ul>
-      <ul>
-        <li><h2>Forum</h2></li>
-        <li><%= link_to_wiki "Help", "help:forum" %></li>
-        <li><%= link_to("Listing", forum_topics_path) %></li>
-        <li><%= link_to("Search", search_forum_posts_path) %></li>
-        <li><%= link_to("Votes", forum_post_votes_path) %></li>
-        <li><%= link_to("RSS", forum_topics_path(:atom)) %></li>
-      </ul>
+      <% if Danbooru.config.comments_enabled?.to_s.truthy? %>
+        <ul>
+          <li><h2>Comments</h2></li>
+          <li><%= link_to_wiki "Help", "help:comments" %></li>
+          <li><%= link_to("Listing", comments_path) %></li>
+          <li><%= link_to("Search", search_comments_path) %></li>
+          <li><%= link_to("Votes", comment_votes_path) %></li>
+          <li><%= link_to("RSS", comments_path(:atom)) %></li>
+        </ul>
+      <% end %>
+      <% if Danbooru.config.forum_enabled?.to_s.truthy? %>
+        <ul>
+          <li><h2>Forum</h2></li>
+          <li><%= link_to_wiki "Help", "help:forum" %></li>
+          <li><%= link_to("Listing", forum_topics_path) %></li>
+          <li><%= link_to("Search", search_forum_posts_path) %></li>
+          <li><%= link_to("Votes", forum_post_votes_path) %></li>
+          <li><%= link_to("RSS", forum_topics_path(:atom)) %></li>
+        </ul>
+      <% end %>
       <ul>
         <li><h2>Wiki</h2></li>
         <li><%= link_to_wiki "Help", "help:wiki" %></li>

app/views/users/_statistics.html.erb

@@ -208,20 +208,24 @@
         </tr>
       <% end %>
 
-      <tr>
-        <th>Forum Posts</th>
-        <td><%= presenter.forum_post_count(self) %></td>
-      </tr>
+      <% if Danbooru.config.forum_enabled?.to_s.truthy? %>
+        <tr>
+          <th>Forum Posts</th>
+          <td><%= presenter.forum_post_count(self) %></td>
+        </tr>
+      <% end %>
 
       <tr>
         <th>Approvals</th>
         <td><%= presenter.approval_count(self) %></td>
       </tr>
 
-      <tr>
-        <th>Comments</th>
-        <td><%= presenter.comment_count(self) %> in <%= presenter.commented_posts_count(self) %> posts</td>
-      </tr>
+      <% if Danbooru.config.comments_enabled?.to_s.truthy? %>
+        <tr>
+          <th>Comments</th>
+          <td><%= presenter.comment_count(self) %> in <%= presenter.commented_posts_count(self) %> posts</td>
+        </tr>
+      <% end %>
 
       <tr>
         <th>Appeals</th>

app/views/users/show.html+tooltip.erb

@@ -111,17 +111,21 @@
         <div class="user-tooltip-stat-name">Favorites</div>
       <% end %>
     </li>
-    <li class="user-tooltip-stat-item">
-      <%= link_to comments_path(search: { creator_id: @user.id }), class: "link-plain" do %>
-        <div class="user-tooltip-stat-value"><%= humanized_number(@user.comment_count) %></div>
-        <div class="user-tooltip-stat-name">Comments</div>
-      <% end %>
-    </li>
-    <li class="user-tooltip-stat-item">
-      <%= link_to forum_posts_path(search: { creator_id: @user.id }), class: "link-plain" do %>
-        <div class="user-tooltip-stat-value"><%= humanized_number(@user.forum_post_count) %></div>
-        <div class="user-tooltip-stat-name">Forum Posts</div>
-      <% end %>
-    </li>
+    <% if Danbooru.config.comments_enabled?.to_s.truthy? %>
+      <li class="user-tooltip-stat-item">
+        <%= link_to comments_path(search: { creator_id: @user.id }), class: "link-plain" do %>
+          <div class="user-tooltip-stat-value"><%= humanized_number(@user.comment_count) %></div>
+          <div class="user-tooltip-stat-name">Comments</div>
+        <% end %>
+      </li>
+    <% end %>
+    <% if Danbooru.config.forum_enabled?.to_s.truthy? %>
+      <li class="user-tooltip-stat-item">
+        <%= link_to forum_posts_path(search: { creator_id: @user.id }), class: "link-plain" do %>
+          <div class="user-tooltip-stat-value"><%= humanized_number(@user.forum_post_count) %></div>
+          <div class="user-tooltip-stat-name">Forum Posts</div>
+        <% end %>
+      </li>
+    <% end %>
   </ul>
 </div>

app/views/users/show.html.erb

@@ -12,5 +12,7 @@
   </div>
 </div>
 
-<% atom_feed_tag "Comments on #{@user.pretty_name}'s uploads", comments_url(:atom, search: { post_tags_match: "user:#{@user.name}" }) %>
-<% atom_feed_tag "Comments on posts commented on by #{@user.pretty_name}", comments_url(:atom, search: { post_tags_match: "commenter:#{@user.name}" }) %>
+<% if Danbooru.config.comments_enabled?.to_s.truthy? %>
+  <% atom_feed_tag "Comments on #{@user.pretty_name}'s uploads", comments_url(:atom, search: { post_tags_match: "user:#{@user.name}" }) %>
+  <% atom_feed_tag "Comments on posts commented on by #{@user.pretty_name}", comments_url(:atom, search: { post_tags_match: "commenter:#{@user.name}" }) %>
+<% end %>

app/views/wiki_pages/_sidebar.html.erb

@@ -10,7 +10,9 @@
         <li><%= link_to "Tag History", post_versions_path(search: { changed_tags: @wiki_page.title }) %></li>
       <% end %>
       <li><%= link_to "Wiki History", wiki_page_versions_path(search: { wiki_page_id: @wiki_page.id }) %></li>
-      <li><%= link_to "Discussions", forum_posts_path(search: { linked_to: @wiki_page.title }) %></li>
+      <% if Danbooru.config.forum_enabled?.to_s.truthy? %>
+        <li><%= link_to "Discussions", forum_posts_path(search: { linked_to: @wiki_page.title }) %></li>
+      <% end %>
       <li><%= link_to "What Links Here", wiki_pages_path(search: { linked_to: @wiki_page.title }) %></li>
     </ul>
   <% end %>

config/danbooru_default_config.rb

@@ -377,6 +377,21 @@ module Danbooru
       true
     end
 
+    # Whether to enable comments.
+    def comments_enabled?
+      true
+    end
+
+    # Whether to enable the forum.
+    def forum_enabled?
+      true
+    end
+
+    # Whether to enable autocomplete.
+    def autocomplete_enabled?
+      true
+    end
+
     def stripe_secret_key
     end