[Ads] Support keyword targets

Basically a redo of b61856af6d which was removed in 0842a50ad5

app/logical/post_sets/base.rb

@@ -1,11 +1,15 @@
 module PostSets
   class Base
     def tag_string
-      nil
+      ""
     end
 
     def public_tag_string
-      nil
+      ""
+    end
+
+    def ad_tag_string
+      ""
     end
 
     def fill_tag_types(posts)

app/logical/post_sets/post.rb

@@ -22,6 +22,10 @@ module PostSets
       @public_tag_string ||= public_tag_array.uniq.join(" ")
     end
 
+    def ad_tag_string
+      TagQuery.ad_tag_string(public_tag_array)
+    end
+
     def humanized_tag_string
       public_tag_array.slice(0, 25).join(" ").tr("_", " ")
     end

app/logical/tag_query.rb

@@ -98,6 +98,10 @@ class TagQuery
     tags.select { |tag| tag_array.include?(tag) }
   end
 
+  def self.ad_tag_string(tag_array)
+    fetch_tags(tag_array, *Danbooru.config.ads_keyword_tags).join(" ")
+  end
+
   private
 
   METATAG_SEARCH_TYPE = {

app/models/post.rb

@@ -826,6 +826,10 @@ class Post < ApplicationRecord
       TagQuery.fetch_tags(tag_array, *)
     end
 
+    def ad_tag_string
+      TagQuery.ad_tag_string(tag_array)
+    end
+
     def add_tag(tag)
       set_tag_string("#{tag_string} #{tag}")
     end

app/views/ads/_leaderboard.html.erb

@@ -21,6 +21,8 @@
             return;
           el.setAttribute("data-revive-zoneid", zone.zone.toString());
           el.setAttribute("data-revive-id", zone.revive_id);
+          // We run our own ad network. Tags are not logged anywhere, and are only used for filtering ads based on tags.
+          el.setAttribute("data-revive-tags", <%= raw(tag_string.to_json) %>);
           var s = document.createElement('script');
           s.async = true;
           s.src = "//ads.dragonfru.it/www/delivery/asyncjs.php";

app/views/posts/index.html.erb

@@ -19,7 +19,7 @@
     </aside>
 
     <section id="content">
-      <%= render "ads/leaderboard" %>
+      <%= render "ads/leaderboard", tag_string: @post_set.ad_tag_string %>
 
       <!-- TODO: Fix tag array with forced -status:deleted -->
 

app/views/posts/show.html.erb

@@ -72,7 +72,7 @@
           <% end %>
         </div>
 
-        <%= render "ads/leaderboard" %>
+        <%= render "ads/leaderboard", tag_string: @post.ad_tag_string %>
 
         <%= tag.section(id: "image-container", **PostPresenter.data_attributes(@post, include_post: true)) do -%>
           <div id="note-container"></div>

config/danbooru_default_config.rb

@@ -650,6 +650,11 @@ module Danbooru
       false
     end
 
+    # These tags will be sent to the revive server to do filtering on
+    def ads_keyword_tags
+      []
+    end
+
     def ads_zone_desktop
       {zone: nil, revive_id: nil, checksum: nil}
     end