From ea80d51ecfd72339dcf7762fa9e3ea5564a3b8b8 Mon Sep 17 00:00:00 2001
From: evazion <noizave@gmail.com>
Date: Wed, 24 May 2017 15:51:25 -0500
Subject: [PATCH 1/2] /posts/$id: add feed discovery link for comments on post.

---
 app/views/comments/index.atom.builder | 1 +
 app/views/posts/show.html.erb         | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/app/views/comments/index.atom.builder b/app/views/comments/index.atom.builder
index 0c0396626..e5458fac7 100644
--- a/app/views/comments/index.atom.builder
+++ b/app/views/comments/index.atom.builder
@@ -2,6 +2,7 @@ atom_feed do |feed|
   title = "Comments"
   title += " by #{params[:search][:creator_name]}" if params.dig(:search, :creator_name).present?
   title += " on #{params[:search][:post_tags_match]}" if params.dig(:search, :post_tags_match).present?
+  title += " on post ##{params[:search][:post_id]}" if params.dig(:search, :post_id).present?
 
   feed.title(title)
   feed.updated(@comments.first.try(:updated_at))
diff --git a/app/views/posts/show.html.erb b/app/views/posts/show.html.erb
index 4ed71de3c..6cb62c631 100644
--- a/app/views/posts/show.html.erb
+++ b/app/views/posts/show.html.erb
@@ -175,6 +175,8 @@
     <meta name="twitter:description" content="<%= @post.presenter.humanized_tag_string %> - <%= Danbooru.config.app_name %>">
     <meta name="twitter:image" content="http://<%= Danbooru.config.hostname %><%= @post.large_file_url %>">
   <% end %>
+
+  <%= auto_discovery_link_tag(:atom, comments_url(:atom, search: { post_id: @post.id }), title: "Comments for post ##{@post.id}") %>
 <% end %>
 
 <%= render "posts/partials/common/secondary_links" %>

From 1b03832b26c2bfb8fa2a2096defe206e850ce5a7 Mon Sep 17 00:00:00 2001
From: evazion <noizave@gmail.com>
Date: Wed, 24 May 2017 16:09:32 -0500
Subject: [PATCH 2/2] /forum_topics/$id: fix atom feed discovery link.

> Found an issue with the forum topic ATOM discovery link. Currently the
> link is visible to feed detectors, but they are unable to add it since
> the link provided is invalid.
>
> <link rel="alternate" type="application/atom+xml" title="Artist tagging
> help" href="http://danbooru.donmai.us/forum_topics.8199" />
---
 app/views/forum_topics/show.html.erb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/views/forum_topics/show.html.erb b/app/views/forum_topics/show.html.erb
index 2f74bfefd..fae19d00b 100644
--- a/app/views/forum_topics/show.html.erb
+++ b/app/views/forum_topics/show.html.erb
@@ -43,6 +43,8 @@
 <% end %>
 
 <%= content_for(:html_header) do %>
+  <%= auto_discovery_link_tag(:atom, {format: :atom}, {title: @forum_topic.title}) %>
+
   <script>
     $(function() {
       $("#new-response-link").click(function(e) {
@@ -57,5 +59,3 @@
     });
   </script>
 <% end %>
-
-<% content_for(:html_header, auto_discovery_link_tag(:atom, forum_topics_url(@forum_topic, :atom), title: @forum_topic.title)) %>