From 26e2076659450361b4fd4252c7a7b838099c442b Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Tue, 10 Mar 2020 18:11:48 +0300
Subject: fix for feed page pagination

---
 lib/pleroma/web/controller_helper.ex    | 7 ++++---
 lib/pleroma/web/feed/tag_controller.ex  | 4 ++--
 lib/pleroma/web/feed/user_controller.ex | 4 ++--
 3 files changed, 8 insertions(+), 7 deletions(-)

(limited to 'lib')

diff --git a/lib/pleroma/web/controller_helper.ex b/lib/pleroma/web/controller_helper.ex
index c9a3a2585..ad293cda9 100644
--- a/lib/pleroma/web/controller_helper.ex
+++ b/lib/pleroma/web/controller_helper.ex
@@ -87,7 +87,8 @@ defmodule Pleroma.Web.ControllerHelper do
     render_error(conn, :not_implemented, "Can't display this activity")
   end
 
-  @spec put_in_if_exist(map(), atom() | String.t(), any) :: map()
-  def put_in_if_exist(map, _key, nil), do: map
-  def put_in_if_exist(map, key, value), do: put_in(map, key, value)
+  @spec put_if_exist(map(), atom() | String.t(), any) :: map()
+  def put_if_exist(map, _key, nil), do: map
+
+  def put_if_exist(map, key, value), do: Map.put(map, key, value)
 end
diff --git a/lib/pleroma/web/feed/tag_controller.ex b/lib/pleroma/web/feed/tag_controller.ex
index 75c9ea17e..904047b12 100644
--- a/lib/pleroma/web/feed/tag_controller.ex
+++ b/lib/pleroma/web/feed/tag_controller.ex
@@ -9,14 +9,14 @@ defmodule Pleroma.Web.Feed.TagController do
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.Feed.FeedView
 
-  import Pleroma.Web.ControllerHelper, only: [put_in_if_exist: 3]
+  import Pleroma.Web.ControllerHelper, only: [put_if_exist: 3]
 
   def feed(conn, %{"tag" => raw_tag} = params) do
     {format, tag} = parse_tag(raw_tag)
 
     activities =
       %{"type" => ["Create"], "tag" => tag}
-      |> put_in_if_exist("max_id", params["max_id"])
+      |> put_if_exist("max_id", params["max_id"])
       |> ActivityPub.fetch_public_activities()
 
     conn
diff --git a/lib/pleroma/web/feed/user_controller.ex b/lib/pleroma/web/feed/user_controller.ex
index 9ba602d9f..9ffb3b9be 100644
--- a/lib/pleroma/web/feed/user_controller.ex
+++ b/lib/pleroma/web/feed/user_controller.ex
@@ -11,7 +11,7 @@ defmodule Pleroma.Web.Feed.UserController do
   alias Pleroma.Web.ActivityPub.ActivityPubController
   alias Pleroma.Web.Feed.FeedView
 
-  import Pleroma.Web.ControllerHelper, only: [put_in_if_exist: 3]
+  import Pleroma.Web.ControllerHelper, only: [put_if_exist: 3]
 
   plug(Pleroma.Plugs.SetFormatPlug when action in [:feed_redirect])
 
@@ -46,7 +46,7 @@ defmodule Pleroma.Web.Feed.UserController do
           "type" => ["Create"],
           "actor_id" => user.ap_id
         }
-        |> put_in_if_exist("max_id", params["max_id"])
+        |> put_if_exist("max_id", params["max_id"])
         |> ActivityPub.fetch_public_activities()
 
       conn
-- 
cgit v1.2.3


From 91870c8995c154839d611bcce6d038f72ef0665c Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Fri, 13 Mar 2020 17:41:26 +0300
Subject: adding rss for user feed

---
 lib/pleroma/web/feed/user_controller.ex            | 13 +++++-
 lib/pleroma/web/router.ex                          |  2 +-
 .../web/templates/feed/feed/_activity.atom.eex     | 50 ++++++++++++++++++++++
 .../web/templates/feed/feed/_activity.rss.eex      | 49 +++++++++++++++++++++
 .../web/templates/feed/feed/_activity.xml.eex      | 50 ----------------------
 .../web/templates/feed/feed/_author.atom.eex       | 17 ++++++++
 .../web/templates/feed/feed/_author.rss.eex        | 17 ++++++++
 .../web/templates/feed/feed/_author.xml.eex        | 17 --------
 lib/pleroma/web/templates/feed/feed/user.atom.eex  | 24 +++++++++++
 lib/pleroma/web/templates/feed/feed/user.rss.eex   | 20 +++++++++
 lib/pleroma/web/templates/feed/feed/user.xml.eex   | 24 -----------
 11 files changed, 189 insertions(+), 94 deletions(-)
 create mode 100644 lib/pleroma/web/templates/feed/feed/_activity.atom.eex
 create mode 100644 lib/pleroma/web/templates/feed/feed/_activity.rss.eex
 delete mode 100644 lib/pleroma/web/templates/feed/feed/_activity.xml.eex
 create mode 100644 lib/pleroma/web/templates/feed/feed/_author.atom.eex
 create mode 100644 lib/pleroma/web/templates/feed/feed/_author.rss.eex
 delete mode 100644 lib/pleroma/web/templates/feed/feed/_author.xml.eex
 create mode 100644 lib/pleroma/web/templates/feed/feed/user.atom.eex
 create mode 100644 lib/pleroma/web/templates/feed/feed/user.rss.eex
 delete mode 100644 lib/pleroma/web/templates/feed/feed/user.xml.eex

(limited to 'lib')

diff --git a/lib/pleroma/web/feed/user_controller.ex b/lib/pleroma/web/feed/user_controller.ex
index 9ffb3b9be..e27f85929 100644
--- a/lib/pleroma/web/feed/user_controller.ex
+++ b/lib/pleroma/web/feed/user_controller.ex
@@ -40,6 +40,15 @@ defmodule Pleroma.Web.Feed.UserController do
   end
 
   def feed(conn, %{"nickname" => nickname} = params) do
+    format = get_format(conn)
+
+    format =
+      if format in ["rss", "atom"] do
+        format
+      else
+        "atom"
+      end
+
     with {_, %User{} = user} <- {:fetch_user, User.get_cached_by_nickname(nickname)} do
       activities =
         %{
@@ -50,9 +59,9 @@ defmodule Pleroma.Web.Feed.UserController do
         |> ActivityPub.fetch_public_activities()
 
       conn
-      |> put_resp_content_type("application/atom+xml")
+      |> put_resp_content_type("application/#{format}+xml")
       |> put_view(FeedView)
-      |> render("user.xml",
+      |> render("user.#{format}",
         user: user,
         activities: activities,
         feed_config: Pleroma.Config.get([:feed])
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index e4e3ee704..3f36f6c1a 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -513,7 +513,7 @@ defmodule Pleroma.Web.Router do
   end
 
   pipeline :ostatus do
-    plug(:accepts, ["html", "xml", "atom", "activity+json", "json"])
+    plug(:accepts, ["html", "xml", "rss", "atom", "activity+json", "json"])
     plug(Pleroma.Plugs.StaticFEPlug)
   end
 
diff --git a/lib/pleroma/web/templates/feed/feed/_activity.atom.eex b/lib/pleroma/web/templates/feed/feed/_activity.atom.eex
new file mode 100644
index 000000000..ac8a75009
--- /dev/null
+++ b/lib/pleroma/web/templates/feed/feed/_activity.atom.eex
@@ -0,0 +1,50 @@
+<entry>
+  <activity:object-type>http://activitystrea.ms/schema/1.0/note</activity:object-type>
+  <activity:verb>http://activitystrea.ms/schema/1.0/post</activity:verb>
+  <id><%= @data["id"] %></id>
+  <title><%= activity_title(@object, Keyword.get(@feed_config, :post_title, %{})) %></title>
+  <content type="html"><%= activity_content(@object) %></content>
+  <published><%= @data["published"] %></published>
+  <updated><%= @data["published"] %></updated>
+  <ostatus:conversation ref="<%= activity_context(@activity) %>">
+    <%= activity_context(@activity) %>
+  </ostatus:conversation>
+  <link href="<%= activity_context(@activity) %>" rel="ostatus:conversation"/>
+
+  <%= if @data["summary"] do %>
+    <summary><%= @data["summary"] %></summary>
+  <% end %>
+
+  <%= if @activity.local do %>
+    <link type="application/atom+xml" href='<%= @data["id"] %>' rel="self"/>
+    <link type="text/html" href='<%= @data["id"] %>' rel="alternate"/>
+  <% else %>
+    <link type="text/html" href='<%= @data["external_url"] %>' rel="alternate"/>
+  <% end %>
+
+  <%= for tag <- @data["tag"] || [] do %>
+    <category term="<%= tag %>"></category>
+  <% end %>
+
+  <%= for attachment <- @data["attachment"] || [] do %>
+    <link rel="enclosure" href="<%= attachment_href(attachment) %>" type="<%= attachment_type(attachment) %>"/>
+  <% end %>
+
+  <%= if @data["inReplyTo"] do %>
+    <thr:in-reply-to ref='<%= @data["inReplyTo"] %>' href='<%= get_href(@data["inReplyTo"]) %>'/>
+  <% end %>
+
+  <%= for id <- @activity.recipients do %>
+    <%= if id == Pleroma.Constants.as_public() do %>
+      <link rel="mentioned" ostatus:object-type="http://activitystrea.ms/schema/1.0/collection" href="http://activityschema.org/collection/public"/>
+    <% else %>
+      <%= unless Regex.match?(~r/^#{Pleroma.Web.base_url()}.+followers$/, id) do %>
+        <link rel="mentioned" ostatus:object-type="http://activitystrea.ms/schema/1.0/person" href="<%= id %>"/>
+      <% end %>
+    <% end %>
+  <% end %>
+
+  <%= for {emoji, file} <- @data["emoji"] || %{} do %>
+    <link name="<%= emoji %>" rel="emoji" href="<%= file %>"/>
+  <% end %>
+</entry>
diff --git a/lib/pleroma/web/templates/feed/feed/_activity.rss.eex b/lib/pleroma/web/templates/feed/feed/_activity.rss.eex
new file mode 100644
index 000000000..a4dbed638
--- /dev/null
+++ b/lib/pleroma/web/templates/feed/feed/_activity.rss.eex
@@ -0,0 +1,49 @@
+<item>
+  <activity:object-type>http://activitystrea.ms/schema/1.0/note</activity:object-type>
+  <activity:verb>http://activitystrea.ms/schema/1.0/post</activity:verb>
+  <guid><%= @data["id"] %></guid>
+  <title><%= activity_title(@object, Keyword.get(@feed_config, :post_title, %{})) %></title>
+  <description><%= activity_content(@object) %></description>
+  <pubDate><%= @data["published"] %></pubDate>
+  <updated><%= @data["published"] %></updated>
+  <ostatus:conversation ref="<%= activity_context(@activity) %>">
+    <%= activity_context(@activity) %>
+  </ostatus:conversation>
+  <link rel="ostatus:conversation"><%= activity_context(@activity) %></link>
+
+  <%= if @data["summary"] do %>
+    <description><%= @data["summary"] %></description>
+  <% end %>
+
+  <%= if @activity.local do %>
+    <link><%= @data["id"] %></link>
+  <% else %>
+    <link><%= @data["external_url"] %></link>
+  <% end %>
+
+  <%= for tag <- @data["tag"] || [] do %>
+    <category term="<%= tag %>"></category>
+  <% end %>
+
+  <%= for attachment <- @data["attachment"] || [] do %>
+    <link type="<%= attachment_type(attachment) %>"><%= attachment_href(attachment) %></link>
+  <% end %>
+
+  <%= if @data["inReplyTo"] do %>
+    <thr:in-reply-to ref='<%= @data["inReplyTo"] %>' href='<%= get_href(@data["inReplyTo"]) %>'/>
+  <% end %>
+
+  <%= for id <- @activity.recipients do %>
+    <%= if id == Pleroma.Constants.as_public() do %>
+      <link rel="mentioned" ostatus:object-type="http://activitystrea.ms/schema/1.0/collection">http://activityschema.org/collection/public</link>
+    <% else %>
+      <%= unless Regex.match?(~r/^#{Pleroma.Web.base_url()}.+followers$/, id) do %>
+        <link rel="mentioned" ostatus:object-type="http://activitystrea.ms/schema/1.0/person"><%= id %></link>
+      <% end %>
+    <% end %>
+  <% end %>
+
+  <%= for {emoji, file} <- @data["emoji"] || %{} do %>
+    <link name="<%= emoji %>" rel="emoji"><%= file %></link>
+  <% end %>
+</item>
diff --git a/lib/pleroma/web/templates/feed/feed/_activity.xml.eex b/lib/pleroma/web/templates/feed/feed/_activity.xml.eex
deleted file mode 100644
index ac8a75009..000000000
--- a/lib/pleroma/web/templates/feed/feed/_activity.xml.eex
+++ /dev/null
@@ -1,50 +0,0 @@
-<entry>
-  <activity:object-type>http://activitystrea.ms/schema/1.0/note</activity:object-type>
-  <activity:verb>http://activitystrea.ms/schema/1.0/post</activity:verb>
-  <id><%= @data["id"] %></id>
-  <title><%= activity_title(@object, Keyword.get(@feed_config, :post_title, %{})) %></title>
-  <content type="html"><%= activity_content(@object) %></content>
-  <published><%= @data["published"] %></published>
-  <updated><%= @data["published"] %></updated>
-  <ostatus:conversation ref="<%= activity_context(@activity) %>">
-    <%= activity_context(@activity) %>
-  </ostatus:conversation>
-  <link href="<%= activity_context(@activity) %>" rel="ostatus:conversation"/>
-
-  <%= if @data["summary"] do %>
-    <summary><%= @data["summary"] %></summary>
-  <% end %>
-
-  <%= if @activity.local do %>
-    <link type="application/atom+xml" href='<%= @data["id"] %>' rel="self"/>
-    <link type="text/html" href='<%= @data["id"] %>' rel="alternate"/>
-  <% else %>
-    <link type="text/html" href='<%= @data["external_url"] %>' rel="alternate"/>
-  <% end %>
-
-  <%= for tag <- @data["tag"] || [] do %>
-    <category term="<%= tag %>"></category>
-  <% end %>
-
-  <%= for attachment <- @data["attachment"] || [] do %>
-    <link rel="enclosure" href="<%= attachment_href(attachment) %>" type="<%= attachment_type(attachment) %>"/>
-  <% end %>
-
-  <%= if @data["inReplyTo"] do %>
-    <thr:in-reply-to ref='<%= @data["inReplyTo"] %>' href='<%= get_href(@data["inReplyTo"]) %>'/>
-  <% end %>
-
-  <%= for id <- @activity.recipients do %>
-    <%= if id == Pleroma.Constants.as_public() do %>
-      <link rel="mentioned" ostatus:object-type="http://activitystrea.ms/schema/1.0/collection" href="http://activityschema.org/collection/public"/>
-    <% else %>
-      <%= unless Regex.match?(~r/^#{Pleroma.Web.base_url()}.+followers$/, id) do %>
-        <link rel="mentioned" ostatus:object-type="http://activitystrea.ms/schema/1.0/person" href="<%= id %>"/>
-      <% end %>
-    <% end %>
-  <% end %>
-
-  <%= for {emoji, file} <- @data["emoji"] || %{} do %>
-    <link name="<%= emoji %>" rel="emoji" href="<%= file %>"/>
-  <% end %>
-</entry>
diff --git a/lib/pleroma/web/templates/feed/feed/_author.atom.eex b/lib/pleroma/web/templates/feed/feed/_author.atom.eex
new file mode 100644
index 000000000..25cbffada
--- /dev/null
+++ b/lib/pleroma/web/templates/feed/feed/_author.atom.eex
@@ -0,0 +1,17 @@
+<author>
+  <id><%= @user.ap_id %></id>
+  <activity:object>http://activitystrea.ms/schema/1.0/person</activity:object>
+  <uri><%= @user.ap_id %></uri>
+  <poco:preferredUsername><%= @user.nickname %></poco:preferredUsername>
+  <poco:displayName><%= @user.name %></poco:displayName>
+  <poco:note><%= escape(@user.bio) %></poco:note>
+  <summary><%= escape(@user.bio) %></summary>
+  <name><%= @user.nickname %></name>
+  <link rel="avatar" href="<%= User.avatar_url(@user) %>"/>
+  <%= if User.banner_url(@user) do %>
+    <link rel="header" href="<%= User.banner_url(@user) %>"/>
+  <% end %>
+  <%= if @user.local do %>
+    <ap_enabled>true</ap_enabled>
+  <% end %>
+</author>
diff --git a/lib/pleroma/web/templates/feed/feed/_author.rss.eex b/lib/pleroma/web/templates/feed/feed/_author.rss.eex
new file mode 100644
index 000000000..526aeddcf
--- /dev/null
+++ b/lib/pleroma/web/templates/feed/feed/_author.rss.eex
@@ -0,0 +1,17 @@
+<managingEditor>
+  <guid><%= @user.ap_id %></guid>
+  <activity:object>http://activitystrea.ms/schema/1.0/person</activity:object>
+  <uri><%= @user.ap_id %></uri>
+  <poco:preferredUsername><%= @user.nickname %></poco:preferredUsername>
+  <poco:displayName><%= @user.name %></poco:displayName>
+  <poco:note><%= escape(@user.bio) %></poco:note>
+  <description><%= escape(@user.bio) %></description>
+  <name><%= @user.nickname %></name>
+  <link rel="avatar"><%= User.avatar_url(@user) %></link>
+  <%= if User.banner_url(@user) do %>
+    <link rel="header"><%= User.banner_url(@user) %></link>
+  <% end %>
+  <%= if @user.local do %>
+    <ap_enabled>true</ap_enabled>
+  <% end %>
+</managingEditor>
diff --git a/lib/pleroma/web/templates/feed/feed/_author.xml.eex b/lib/pleroma/web/templates/feed/feed/_author.xml.eex
deleted file mode 100644
index 25cbffada..000000000
--- a/lib/pleroma/web/templates/feed/feed/_author.xml.eex
+++ /dev/null
@@ -1,17 +0,0 @@
-<author>
-  <id><%= @user.ap_id %></id>
-  <activity:object>http://activitystrea.ms/schema/1.0/person</activity:object>
-  <uri><%= @user.ap_id %></uri>
-  <poco:preferredUsername><%= @user.nickname %></poco:preferredUsername>
-  <poco:displayName><%= @user.name %></poco:displayName>
-  <poco:note><%= escape(@user.bio) %></poco:note>
-  <summary><%= escape(@user.bio) %></summary>
-  <name><%= @user.nickname %></name>
-  <link rel="avatar" href="<%= User.avatar_url(@user) %>"/>
-  <%= if User.banner_url(@user) do %>
-    <link rel="header" href="<%= User.banner_url(@user) %>"/>
-  <% end %>
-  <%= if @user.local do %>
-    <ap_enabled>true</ap_enabled>
-  <% end %>
-</author>
diff --git a/lib/pleroma/web/templates/feed/feed/user.atom.eex b/lib/pleroma/web/templates/feed/feed/user.atom.eex
new file mode 100644
index 000000000..c6acd848f
--- /dev/null
+++ b/lib/pleroma/web/templates/feed/feed/user.atom.eex
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<feed
+  xmlns="http://www.w3.org/2005/Atom"
+  xmlns:thr="http://purl.org/syndication/thread/1.0"
+  xmlns:activity="http://activitystrea.ms/spec/1.0/"
+  xmlns:poco="http://portablecontacts.net/spec/1.0"
+  xmlns:ostatus="http://ostatus.org/schema/1.0">
+
+  <id><%= user_feed_url(@conn, :feed, @user.nickname) <> ".atom" %></id>
+  <title><%= @user.nickname <> "'s timeline" %></title>
+  <updated><%= most_recent_update(@activities, @user) %></updated>
+  <logo><%= logo(@user) %></logo>
+  <link rel="self" href="<%= '#{user_feed_url(@conn, :feed, @user.nickname)}.atom' %>" type="application/atom+xml"/>
+
+  <%= render @view_module, "_author.atom", assigns %>
+
+  <%= if last_activity(@activities) do %>
+    <link rel="next" href="<%= '#{user_feed_url(@conn, :feed, @user.nickname)}.atom?max_id=#{last_activity(@activities).id}' %>" type="application/atom+xml"/>
+  <% end %>
+
+  <%= for activity <- @activities do %>
+  <%= render @view_module, "_activity.atom", Map.merge(assigns, prepare_activity(activity)) %>
+  <% end %>
+</feed>
diff --git a/lib/pleroma/web/templates/feed/feed/user.rss.eex b/lib/pleroma/web/templates/feed/feed/user.rss.eex
new file mode 100644
index 000000000..d69120480
--- /dev/null
+++ b/lib/pleroma/web/templates/feed/feed/user.rss.eex
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<rss version="2.0">
+  <channel>
+    <guid><%= user_feed_url(@conn, :feed, @user.nickname) <> ".rss" %></guid>
+    <title><%= @user.nickname <> "'s timeline" %></title>
+    <updated><%= most_recent_update(@activities, @user) %></updated>
+    <image><%= logo(@user) %></image>
+    <link><%= '#{user_feed_url(@conn, :feed, @user.nickname)}.rss' %></link>
+
+    <%= render @view_module, "_author.rss", assigns %>
+
+    <%= if last_activity(@activities) do %>
+      <link rel="next"><%= '#{user_feed_url(@conn, :feed, @user.nickname)}.rss?max_id=#{last_activity(@activities).id}' %></link>
+    <% end %>
+
+    <%= for activity <- @activities do %>
+    <%= render @view_module, "_activity.rss", Map.merge(assigns, prepare_activity(activity)) %>
+    <% end %>
+  </channel>
+</rss>
diff --git a/lib/pleroma/web/templates/feed/feed/user.xml.eex b/lib/pleroma/web/templates/feed/feed/user.xml.eex
deleted file mode 100644
index d274c08ae..000000000
--- a/lib/pleroma/web/templates/feed/feed/user.xml.eex
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<feed
-  xmlns="http://www.w3.org/2005/Atom"
-  xmlns:thr="http://purl.org/syndication/thread/1.0"
-  xmlns:activity="http://activitystrea.ms/spec/1.0/"
-  xmlns:poco="http://portablecontacts.net/spec/1.0"
-  xmlns:ostatus="http://ostatus.org/schema/1.0">
-
-  <id><%= user_feed_url(@conn, :feed, @user.nickname) <> ".atom" %></id>
-  <title><%= @user.nickname <> "'s timeline" %></title>
-  <updated><%= most_recent_update(@activities, @user) %></updated>
-  <logo><%= logo(@user) %></logo>
-  <link rel="self" href="<%= '#{user_feed_url(@conn, :feed, @user.nickname)}.atom' %>" type="application/atom+xml"/>
-
-  <%= render @view_module, "_author.xml", assigns %>
-
-  <%= if last_activity(@activities) do %>
-    <link rel="next" href="<%= '#{user_feed_url(@conn, :feed, @user.nickname)}.atom?max_id=#{last_activity(@activities).id}' %>" type="application/atom+xml"/>
-  <% end %>
-
-  <%= for activity <- @activities do %>
-  <%= render @view_module, "_activity.xml", Map.merge(assigns, prepare_activity(activity)) %>
-  <% end %>
-</feed>
-- 
cgit v1.2.3


From 89e4b3ebbd433032a2687712c9c6684902fe4ebe Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Fri, 13 Mar 2020 17:58:14 +0300
Subject: fix for content-type header for tag feed

---
 lib/pleroma/web/feed/tag_controller.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/pleroma/web/feed/tag_controller.ex b/lib/pleroma/web/feed/tag_controller.ex
index 904047b12..8133f8480 100644
--- a/lib/pleroma/web/feed/tag_controller.ex
+++ b/lib/pleroma/web/feed/tag_controller.ex
@@ -20,7 +20,7 @@ defmodule Pleroma.Web.Feed.TagController do
       |> ActivityPub.fetch_public_activities()
 
     conn
-    |> put_resp_content_type("application/atom+xml")
+    |> put_resp_content_type("application/#{format}+xml")
     |> put_view(FeedView)
     |> render("tag.#{format}",
       activities: activities,
-- 
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