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	diff --git a/changelog.d/rss.fix b/changelog.d/rss.fix
	new file mode 100644
	index 000000000..a3455698a
	--- /dev/null
	+++ b/changelog.d/rss.fix
	@@ -0,0 +1 @@
	+Fix RSS feeds to be W3C compliant and render better in RSS readers
	diff --git a/lib/pleroma/web/feed/feed_view.ex b/lib/pleroma/web/feed/feed_view.ex
	index e1ee33d62..a433b8403 100644
	--- a/lib/pleroma/web/feed/feed_view.ex
	+++ b/lib/pleroma/web/feed/feed_view.ex
	@@ -1,190 +1,331 @@
	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Web.Feed.FeedView do
	use Phoenix.HTML
	use Pleroma.Web, :view

	alias Pleroma.Object
	alias Pleroma.User
	alias Pleroma.Web.Gettext
	alias Pleroma.Web.MediaProxy

	require Pleroma.Constants

	@days ~w(Mon Tue Wed Thu Fri Sat Sun)
	@months ~w(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec)

	def prepare_activity(activity, opts \\ []) do
	object = Object.normalize(activity, fetch: false)

	actor =
	if opts[:actor] do
	Pleroma.User.get_cached_by_ap_id(activity.actor)
	end

	%{
	activity: activity,
	object: object,
	data: Map.get(object, :data),
	actor: actor
	}
	end

	def most_recent_update(activities) do
	with %{updated_at: updated_at} <- List.first(activities) do
	to_rfc3339(updated_at)
	end
	end

	def most_recent_update(activities, user, :atom) do
	(List.first(activities) \|\| user).updated_at
	\|> to_rfc3339()
	end

	def most_recent_update(activities, user, :rss) do
	(List.first(activities) \|\| user).updated_at
	\|> to_rfc2822()
	end

	def feed_logo do
	case Pleroma.Config.get([:feed, :logo]) do
	nil ->
	"#{Pleroma.Web.Endpoint.url()}/static/logo.svg"

	logo ->
	"#{Pleroma.Web.Endpoint.url()}#{logo}"
	end
	\|> MediaProxy.url()
	end

	def email(user) do
	user.nickname <> "@" <> Pleroma.Web.Endpoint.host()
	end

	def logo(user) do
	user
	\|> User.avatar_url()
	\|> MediaProxy.url()
	end

	def last_activity(activities), do: List.last(activities)

	def activity_title(%{"content" => content} = data, opts \\ %{}) do
	summary = Map.get(data, "summary", "")

	title =
	cond do
	summary != "" -> summary
	content != "" -> activity_content(data)
	true -> "a post"
	end

	title
	\|> Pleroma.Web.Metadata.Utils.scrub_html_and_truncate(opts[:max_length], opts[:omission])
	\|> HtmlEntities.encode()
	end

	def activity_description(data) do
	content = activity_content(data)
	summary = data["summary"]

	cond do
	content != "" -> escape(content)
	summary != "" -> escape(summary)
	true -> escape(data["type"])
	end
	end

	+ def rss_content_encoded(data) do
	+ data
	+ \|> feed_content_encoded()
	+ \|> String.replace("]]>", "]]>")
	+ end
	+
	+ def atom_content_encoded(data), do: feed_content_encoded(data)
	+
	+ defp feed_content_encoded(data) do
	+ base_content =
	+ case activity_content(data) do
	+ "" ->
	+ data["summary"] \|\| data["type"] \|\|
	+ ""
	+ \|> escape()
	+
	+ content ->
	+ content
	+ end
	+
	+ attachments_html =
	+ (data["attachment"] \|\| [])
	+ \|> Enum.map(&rss_attachment_preview/1)
	+ \|> Enum.reject(&(&1 == ""))
	+ \|> Enum.join("<br/><br/>")
	+
	+ [base_content, attachments_html]
	+ \|> Enum.reject(&(&1 == ""))
	+ \|> Enum.join("<br/><br/>")
	+ end
	+
	+ defp rss_attachment_preview(attachment) do
	+ href = attachment_href(attachment)
	+
	+ if is_binary(href) and href != "" do
	+ media_type = attachment_type(attachment) \|\| "application/octet-stream"
	+ escaped_href = escape(href)
	+ name = attachment["name"] \|\| "Attachment"
	+ escaped_name = escape(name)
	+
	+ cond do
	+ String.starts_with?(media_type, "image/") ->
	+ ~s(<p><img src="#{escaped_href}" alt="#{escaped_name}" loading="lazy"/></p>)
	+
	+ String.starts_with?(media_type, "video/") ->
	+ ~s(<p><video controls preload="metadata" src="#{escaped_href}"></video></p><p><a href="#{escaped_href}">#{escaped_name}</a></p>)
	+
	+ String.starts_with?(media_type, "audio/") ->
	+ ~s(<p><audio controls preload="metadata" src="#{escaped_href}"></audio></p><p><a href="#{escaped_href}">#{escaped_name}</a></p>)
	+
	+ true ->
	+ ~s(<p><a href="#{escaped_href}">#{escaped_name}</a></p>)
	+ end
	+ else
	+ ""
	+ end
	+ end
	+
	def activity_content(%{"content" => content}) do
	content
	\|> String.replace(~r/[\n\r]/, "")
	end

	def activity_content(_), do: ""

	def activity_context(activity), do: escape(activity.data["context"])

	+ def feed_self_url(conn), do: Phoenix.Controller.current_url(conn)
	+
	+ def activity_link(activity, data) do
	+ cond do
	+ activity.local -> data["id"] \|\| data["url"]
	+ true -> data["external_url"] \|\| data["id"] \|\| data["url"]
	+ end
	+ end
	+
	def attachment_href(attachment) do
	- attachment["url"]
	- \|> hd()
	+ attachment
	+ \|> attachment_url_data()
	\|> Map.get("href")
	end

	def attachment_type(attachment) do
	- attachment["url"]
	- \|> hd()
	- \|> Map.get("mediaType")
	+ attachment
	+ \|> attachment_url_data()
	+ \|> Map.get("mediaType") \|\| attachment["mediaType"]
	+ end
	+
	+ def attachment_size(attachment) do
	+ attachment
	+ \|> attachment_url_data()
	+ \|> Map.get("size", 0)
	+ end
	+
	+ def attachment_size_positive(attachment) do
	+ case attachment_size(attachment) do
	+ size when is_integer(size) and size > 0 ->
	+ size
	+
	+ size when is_binary(size) ->
	+ case Integer.parse(size) do
	+ {parsed, ""} when parsed > 0 -> parsed
	+ _ -> nil
	+ end
	+
	+ _ ->
	+ nil
	+ end
	+ end
	+
	+ def attachment_medium(attachment) do
	+ case attachment_type(attachment) do
	+ "image/" <> _rest -> "image"
	+ "video/" <> _rest -> "video"
	+ "audio/" <> _rest -> "audio"
	+ _ -> "document"
	+ end
	+ end
	+
	+ def attachment_previewable?(attachment) do
	+ attachment_medium(attachment) in ["image", "video", "audio"]
	+ end
	+
	+ def attachment_description(attachment) do
	+ attachment["name"] \|\| ""
	+ end
	+
	+ def media_content_xml(attachment) do
	+ href = escape(attachment_href(attachment) \|\| "")
	+ type = escape(attachment_type(attachment) \|\| "application/octet-stream")
	+ medium = escape(attachment_medium(attachment))
	+
	+ file_size_attr =
	+ case attachment_size_positive(attachment) do
	+ size when is_integer(size) -> ~s( fileSize="#{size}")
	+ _ -> ""
	+ end
	+
	+ description_xml =
	+ case attachment_description(attachment) do
	+ "" ->
	+ ""
	+
	+ description ->
	+ ~s(\n <media:description type="plain">#{escape(description)}</media:description>)
	+ end
	+
	+ """
	+ <media:content url="#{href}" type="#{type}"#{file_size_attr} medium="#{medium}">
	+ <media:rating scheme="urn:simple">nonadult</media:rating>#{description_xml}
	+ </media:content>
	+ """
	+ end
	+
	+ defp attachment_url_data(attachment) do
	+ case attachment["url"] do
	+ [first \| _] when is_map(first) -> first
	+ %{} = map -> map
	+ _ -> %{}
	+ end
	end

	def get_href(id) do
	with %Object{data: %{"external_url" => external_url}} <- Object.get_cached_by_ap_id(id) do
	external_url
	else
	_e -> id
	end
	end

	def escape(html) do
	html
	\|> html_escape()
	\|> safe_to_string()
	end

	@spec to_rfc3339(String.t() \| NaiveDateTime.t()) :: String.t()
	def to_rfc3339(date) when is_binary(date) do
	date
	\|> Timex.parse!("{ISO:Extended}")
	\|> to_rfc3339()
	end

	def to_rfc3339(nd) do
	nd
	\|> Timex.to_datetime()
	\|> Timex.format!("{RFC3339}")
	end

	@spec to_rfc2822(String.t() \| DateTime.t() \| NaiveDateTime.t()) :: String.t()
	def to_rfc2822(datestr) when is_binary(datestr) do
	datestr
	\|> Timex.parse!("{ISO:Extended}")
	\|> to_rfc2822()
	end

	def to_rfc2822(%DateTime{} = date) do
	date
	\|> DateTime.to_naive()
	\|> NaiveDateTime.to_erl()
	\|> rfc2822_from_erl()
	end

	def to_rfc2822(nd) do
	nd
	\|> Timex.to_datetime()
	\|> DateTime.to_naive()
	\|> NaiveDateTime.to_erl()
	\|> rfc2822_from_erl()
	end

	@doc """
	Builds a RFC2822 timestamp from an Erlang timestamp
	[RFC2822 3.3 - Date and Time Specification](https://tools.ietf.org/html/rfc2822#section-3.3)
	This function always assumes the Erlang timestamp is in Universal time, not Local time
	"""
	def rfc2822_from_erl({{year, month, day} = date, {hour, minute, second}}) do
	day_name = Enum.at(@days, :calendar.day_of_the_week(date) - 1)
	month_name = Enum.at(@months, month - 1)

	date_part = "#{day_name}, #{day} #{month_name} #{year}"
	time_part = "#{pad(hour)}:#{pad(minute)}:#{pad(second)}"

	date_part <> " " <> time_part <> " +0000"
	end

	defp pad(num) do
	num
	\|> Integer.to_string()
	\|> String.pad_leading(2, "0")
	end
	end
	diff --git a/lib/pleroma/web/templates/feed/feed/_activity.atom.eex b/lib/pleroma/web/templates/feed/feed/_activity.atom.eex
	index b774f7984..f87d97cb4 100644
	--- a/lib/pleroma/web/templates/feed/feed/_activity.atom.eex
	+++ b/lib/pleroma/web/templates/feed/feed/_activity.atom.eex
	@@ -1,50 +1,38 @@
	<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(@data, Keyword.get(@feed_config, :post_title, %{})) %></title>
	- <content type="html"><%= activity_description(@data) %></content>
	+ <content type="html"><%= escape(atom_content_encoded(@data)) %></content>
	<published><%= to_rfc3339(@data["published"]) %></published>
	<updated><%= to_rfc3339(@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><%= escape(@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 %>
	+ <link type="application/atom+xml" href='<%= activity_link(@activity, @data) %>' rel="self"/>
	+ <link type="text/html" href='<%= activity_link(@activity, @data) %>' rel="alternate"/>

	<%= for tag <- Pleroma.Object.hashtags(@object) do %>
	<category term="<%= tag %>"></category>
	<% end %>

	<%= for attachment <- @data["attachment"] \|\| [] do %>
	- <link rel="enclosure" href="<%= attachment_href(attachment) %>" type="<%= attachment_type(attachment) %>"/>
	+ <%= unless attachment_previewable?(attachment) do %>
	+ <link rel="enclosure" href="<%= attachment_href(attachment) %>" type="<%= attachment_type(attachment) %>" length="<%= attachment_size(attachment) %>"/>
	+ <% end %>
	<% 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.Endpoint.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
	index 7de98f736..a8c2aa342 100644
	--- a/lib/pleroma/web/templates/feed/feed/_activity.rss.eex
	+++ b/lib/pleroma/web/templates/feed/feed/_activity.rss.eex
	@@ -1,45 +1,32 @@
	<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>
	+ <guid isPermaLink="true"><%= @data["id"] %></guid>
	<title><%= activity_title(@data, Keyword.get(@feed_config, :post_title, %{})) %></title>
	<description><%= activity_description(@data) %></description>
	+ <content:encoded><![CDATA[<%= rss_content_encoded(@data) %>]]></content:encoded>
	<pubDate><%= to_rfc2822(@data["published"]) %></pubDate>
	<ostatus:conversation ref="<%= activity_context(@activity) %>">
	<%= activity_context(@activity) %>
	</ostatus:conversation>

	- <%= if @activity.local do %>
	- <link><%= @data["id"] %></link>
	- <% else %>
	- <link><%= @data["external_url"] %></link>
	- <% end %>
	-
	- <link rel="ostatus:conversation"><%= activity_context(@activity) %></link>
	+ <link><%= activity_link(@activity, @data) %></link>

	<%= for tag <- Pleroma.Object.hashtags(@object) do %>
	- <category term="<%= tag %>"></category>
	+ <%= if tag && tag != "" do %>
	+ <category><%= tag %></category>
	+ <% end %>
	<% end %>

	<%= for attachment <- @data["attachment"] \|\| [] do %>
	- <enclosure url="<%= attachment_href(attachment) %>" type="<%= attachment_type(attachment) %>" />
	+ <%= size = attachment_size_positive(attachment) %>
	+ <%= unless attachment_previewable?(attachment) do %>
	+ <enclosure url="<%= attachment_href(attachment) %>" type="<%= attachment_type(attachment) %>" length="<%= size \|\| 0 %>" />
	+ <% end %>
	+ <%= media_content_xml(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">http://activityschema.org/collection/public</link>
	- <% else %>
	- <%= unless Regex.match?(~r/^#{Pleroma.Web.Endpoint.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/_tag_activity.atom.eex b/lib/pleroma/web/templates/feed/feed/_tag_activity.atom.eex
	index 03c222975..ae762f9ed 100644
	--- a/lib/pleroma/web/templates/feed/feed/_tag_activity.atom.eex
	+++ b/lib/pleroma/web/templates/feed/feed/_tag_activity.atom.eex
	@@ -1,49 +1,37 @@
	<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>

	<%= render Phoenix.Controller.view_module(@conn), "_tag_author.atom", assigns %>

	<id><%= @data["id"] %></id>
	<title><%= activity_title(@data, Keyword.get(@feed_config, :post_title, %{})) %></title>
	- <content type="html"><%= activity_description(@data) %></content>
	+ <content type="html"><%= escape(atom_content_encoded(@data)) %></content>
	<published><%= to_rfc3339(@data["published"]) %></published>
	<updated><%= to_rfc3339(@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>
	+ <summary><%= escape(@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 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.Endpoint.url()}.+followers$/, id) do %>
	- <link rel="mentioned"
	- ostatus:object-type="http://activitystrea.ms/schema/1.0/person"
	- href="<%= id %>" />
	- <% end %>
	- <% end %>
	- <% end %>
	+ <link type="application/atom+xml" href='<%= activity_link(@activity, @data) %>' rel="self"/>
	+ <link type="text/html" href='<%= activity_link(@activity, @data) %>' rel="alternate"/>

	<%= for tag <- Pleroma.Object.hashtags(@object) do %>
	<category term="<%= tag %>"></category>
	<% end %>

	+ <%= for attachment <- @data["attachment"] \|\| [] do %>
	+ <%= unless attachment_previewable?(attachment) do %>
	+ <link rel="enclosure" href="<%= attachment_href(attachment) %>" type="<%= attachment_type(attachment) %>" length="<%= attachment_size(attachment) %>"/>
	+ <% 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/_tag_activity.xml.eex b/lib/pleroma/web/templates/feed/feed/_tag_activity.xml.eex
	index 1b8c34b87..6ae3c5a55 100644
	--- a/lib/pleroma/web/templates/feed/feed/_tag_activity.xml.eex
	+++ b/lib/pleroma/web/templates/feed/feed/_tag_activity.xml.eex
	@@ -1,14 +1,22 @@
	<item>
	- <title><%= activity_title(@data, Keyword.get(@feed_config, :post_title, %{})) %></title>
	-
	-
	- <guid isPermalink="true"><%= activity_context(@activity) %></guid>
	- <link><%= activity_context(@activity) %></link>
	+ <guid isPermalink="true"><%= activity_link(@activity, @data) %></guid>
	+ <link><%= activity_link(@activity, @data) %></link>
	<pubDate><%= to_rfc2822(@data["published"]) %></pubDate>
	-
	+ <title><%= activity_title(@data, Keyword.get(@feed_config, :post_title, %{})) %></title>
	<description><%= activity_description(@data) %></description>
	+ <content:encoded><![CDATA[<%= rss_content_encoded(@data) %>]]></content:encoded>
	+
	<%= for attachment <- @data["attachment"] \|\| [] do %>
	- <enclosure url="<%= attachment_href(attachment) %>" type="<%= attachment_type(attachment) %>"/>
	+ <%= size = attachment_size_positive(attachment) %>
	+ <%= unless attachment_previewable?(attachment) do %>
	+ <enclosure url="<%= attachment_href(attachment) %>" type="<%= attachment_type(attachment) %>" length="<%= size \|\| 0 %>"/>
	+ <% end %>
	+ <%= media_content_xml(attachment) %>
	<% end %>

	+ <%= for tag <- Pleroma.Object.hashtags(@object) do %>
	+ <%= if tag && tag != "" do %>
	+ <category><%= tag %></category>
	+ <% end %>
	+ <% end %>
	</item>
	diff --git a/lib/pleroma/web/templates/feed/feed/tag.atom.eex b/lib/pleroma/web/templates/feed/feed/tag.atom.eex
	index 3449c97ff..1646aeec7 100644
	--- a/lib/pleroma/web/templates/feed/feed/tag.atom.eex
	+++ b/lib/pleroma/web/templates/feed/feed/tag.atom.eex
	@@ -1,20 +1,22 @@
	<?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"
	xmlns:statusnet="http://status.net/schema/api/1/">

	<id><%= Routes.tag_feed_url(@conn, :feed, @tag) <> ".atom" %></id>
	<title>#<%= @tag %></title>
	- <subtitle><%= Gettext.dpgettext("static_pages", "tag feed description", "These are public toots tagged with #%{tag}. You can interact with them if you have an account anywhere in the fediverse.", tag: @tag) %></subtitle>
	+ <%= with subtitle when subtitle not in [nil, ""] <- Gettext.dpgettext("static_pages", "tag feed description", "These are public toots tagged with #%{tag}. You can interact with them if you have an account anywhere in the fediverse.", tag: @tag) do %>
	+ <subtitle><%= subtitle %></subtitle>
	+ <% end %>
	<logo><%= feed_logo() %></logo>
	<updated><%= most_recent_update(@activities) %></updated>
	- <link rel="self" href="<%= "#{Routes.tag_feed_url(@conn, :feed, @tag)}.atom" %>" type="application/atom+xml"/>
	+ <link rel="self" href="<%= feed_self_url(@conn) %>" type="application/atom+xml"/>

	<%= for activity <- @activities do %>
	<%= render Phoenix.Controller.view_module(@conn), "_tag_activity.atom", Map.merge(assigns, prepare_activity(activity, actor: true)) %>
	<% end %>
	</feed>
	diff --git a/lib/pleroma/web/templates/feed/feed/tag.rss.eex b/lib/pleroma/web/templates/feed/feed/tag.rss.eex
	index a87f9bf50..618b89ba3 100644
	--- a/lib/pleroma/web/templates/feed/feed/tag.rss.eex
	+++ b/lib/pleroma/web/templates/feed/feed/tag.rss.eex
	@@ -1,16 +1,21 @@
	<?xml version="1.0" encoding="UTF-8"?>
	<rss version="2.0"
	xmlns:webfeeds="http://webfeeds.org/rss/1.0"
	+ xmlns:content="http://purl.org/rss/1.0/modules/content/"
	+ xmlns:media="http://search.yahoo.com/mrss/"
	xmlns:thr="http://purl.org/syndication/thread/1.0">
	<channel>

	<title>#<%= @tag %></title>
	<description><%= Gettext.dpgettext("static_pages", "tag feed description", "These are public toots tagged with #%{tag}. You can interact with them if you have an account anywhere in the fediverse.", tag: @tag) %></description>
	<link><%= "#{Routes.tag_feed_url(@conn, :feed, @tag)}.rss" %></link>
	<webfeeds:logo><%= feed_logo() %></webfeeds:logo>
	+ <webfeeds:icon><%= feed_logo() %></webfeeds:icon>
	<webfeeds:accentColor>2b90d9</webfeeds:accentColor>
	+ <lastBuildDate><%= most_recent_update(@activities) \|\| to_rfc2822(NaiveDateTime.utc_now()) %></lastBuildDate>
	+ <generator><%= Pleroma.Application.named_version() %></generator>
	<%= for activity <- @activities do %>
	<%= render Phoenix.Controller.view_module(@conn), "_tag_activity.xml", Map.merge(assigns, prepare_activity(activity)) %>
	<% end %>
	</channel>
	</rss>
	diff --git a/lib/pleroma/web/templates/feed/feed/user.atom.eex b/lib/pleroma/web/templates/feed/feed/user.atom.eex
	index c2c77cfed..cc6883727 100644
	--- a/lib/pleroma/web/templates/feed/feed/user.atom.eex
	+++ b/lib/pleroma/web/templates/feed/feed/user.atom.eex
	@@ -1,25 +1,27 @@
	<?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><%= Routes.user_feed_url(@conn, :feed, @user.nickname) <> ".atom" %></id>
	<title><%= @user.nickname <> "'s timeline" %></title>
	- <subtitle><%= escape(@user.bio) %></subtitle>
	+ <%= if @user.bio && @user.bio != "" do %>
	+ <subtitle><%= escape(@user.bio) %></subtitle>
	+ <% end %>
	<updated><%= most_recent_update(@activities, @user, :atom) %></updated>
	<logo><%= logo(@user) %></logo>
	- <link rel="self" href="<%= "#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.atom" %>" type="application/atom+xml"/>
	+ <link rel="self" href="<%= feed_self_url(@conn) %>" type="application/atom+xml"/>

	<%= render Phoenix.Controller.view_module(@conn), "_author.atom", assigns %>

	<%= if last_activity(@activities) do %>
	<link rel="next" href="<%= "#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.atom?max_id=#{last_activity(@activities).id}" %>" type="application/atom+xml"/>
	<% end %>

	<%= for activity <- @activities do %>
	<%= render Phoenix.Controller.view_module(@conn), "_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
	index b907a7e57..e2150d8b6 100644
	--- a/lib/pleroma/web/templates/feed/feed/user.rss.eex
	+++ b/lib/pleroma/web/templates/feed/feed/user.rss.eex
	@@ -1,30 +1,36 @@
	<?xml version="1.0" encoding="UTF-8" ?>
	<rss version="2.0"
	xmlns:atom="http://www.w3.org/2005/Atom"
	+ xmlns:content="http://purl.org/rss/1.0/modules/content/"
	+ xmlns:webfeeds="http://webfeeds.org/rss/1.0"
	+ xmlns:media="http://search.yahoo.com/mrss/"
	xmlns:thr="http://purl.org/syndication/thread/1.0"
	xmlns:activity="http://activitystrea.ms/spec/1.0/"
	xmlns:ostatus="http://ostatus.org/schema/1.0"
	xmlns:poco="http://portablecontacts.net/spec/1.0">
	<channel>
	<title><%= @user.nickname <> "'s timeline" %></title>
	- <link><%= "#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.rss" %></link>
	- <atom:link href="<%= Routes.user_feed_url(@conn, :feed, @user.nickname) <> ".atom" %>"
	+ <atom:link href="<%= feed_self_url(@conn) %>"
	rel="self" type="application/rss+xml" />
	+ <link><%= "#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.rss" %></link>
	<description><%= escape(@user.bio) %></description>
	<image>
	<url><%= logo(@user) %></url>
	<title><%= @user.nickname <> "'s timeline" %></title>
	<link><%= "#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.rss" %></link>
	</image>
	+ <lastBuildDate><%= most_recent_update(@activities, @user, :rss) %></lastBuildDate>
	+ <webfeeds:icon><%= logo(@user) %></webfeeds:icon>
	+ <generator><%= Pleroma.Application.named_version() %></generator>

	<%= render Phoenix.Controller.view_module(@conn), "_author.rss", assigns %>

	<%= if last_activity(@activities) do %>
	- <link rel="next"><%= "#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.rss?max_id=#{last_activity(@activities).id}" %></link>
	+ <atom:link rel="next" href="<%= "#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.rss?max_id=#{last_activity(@activities).id}" %>" />
	<% end %>

	<%= for activity <- @activities do %>
	<%= render Phoenix.Controller.view_module(@conn), "_activity.rss", Map.merge(assigns, prepare_activity(activity)) %>
	<% end %>
	</channel>
	</rss>
	diff --git a/test/pleroma/web/feed/tag_controller_test.exs b/test/pleroma/web/feed/tag_controller_test.exs
	index 662235f31..7f2f57b07 100644
	--- a/test/pleroma/web/feed/tag_controller_test.exs
	+++ b/test/pleroma/web/feed/tag_controller_test.exs
	@@ -1,250 +1,250 @@
	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Web.Feed.TagControllerTest do
	use Pleroma.Web.ConnCase

	import Pleroma.Factory
	import SweetXml

	alias Pleroma.Object
	alias Pleroma.Web.CommonAPI
	alias Pleroma.Web.Feed.FeedView

	setup do: clear_config([:feed])

	test "gets a feed (ATOM)", %{conn: conn} do
	clear_config(
	[:feed, :post_title],
	%{max_length: 25, omission: "..."}
	)

	user = insert(:user)
	{:ok, activity1} = CommonAPI.post(user, %{status: "yeah #PleromaArt"})

	object = Object.normalize(activity1, fetch: false)

	object_data =
	Map.put(object.data, "attachment", [
	%{
	"url" => [
	%{
	"href" =>
	"https://peertube.moe/static/webseed/df5f464b-be8d-46fb-ad81-2d4c2d1630e3-480.mp4",
	"mediaType" => "video/mp4",
	"type" => "Link"
	}
	]
	}
	])

	object
	\|> Ecto.Changeset.change(data: object_data)
	\|> Pleroma.Repo.update()

	{:ok, activity2} = CommonAPI.post(user, %{status: "42 This is :moominmamma #PleromaArt"})

	{:ok, _activity3} = CommonAPI.post(user, %{status: "This is :moominmamma"})

	response =
	conn
	\|> put_req_header("accept", "application/atom+xml")
	\|> get(tag_feed_path(conn, :feed, "pleromaart.atom"))
	\|> response(200)

	xml = parse(response)

	assert xpath(xml, ~x"//feed/title/text()") == ~c"#pleromaart"

	assert xpath(xml, ~x"//feed/entry/title/text()"l) == [
	~c"42 This is :moominmamm...",
	~c"yeah #PleromaArt"
	]

	assert xpath(xml, ~x"//feed/entry/author/name/text()"ls) == [user.nickname, user.nickname]

	conn =
	conn
	\|> put_req_header("accept", "application/atom+xml")
	\|> get("/tags/pleromaart.atom", %{"max_id" => activity2.id})

	assert get_resp_header(conn, "content-type") == ["application/atom+xml; charset=utf-8"]
	resp = response(conn, 200)
	xml = parse(resp)

	assert xpath(xml, ~x"//feed/title/text()") == ~c"#pleromaart"

	assert xpath(xml, ~x"//feed/entry/title/text()"l) == [
	~c"yeah #PleromaArt"
	]
	end

	test "gets a feed (RSS)", %{conn: conn} do
	clear_config(
	[:feed, :post_title],
	%{max_length: 25, omission: "..."}
	)

	user = insert(:user)
	{:ok, activity1} = CommonAPI.post(user, %{status: "yeah #PleromaArt"})

	object = Object.normalize(activity1, fetch: false)

	object_data =
	Map.put(object.data, "attachment", [
	%{
	"url" => [
	%{
	"href" =>
	"https://peertube.moe/static/webseed/df5f464b-be8d-46fb-ad81-2d4c2d1630e3-480.mp4",
	"mediaType" => "video/mp4",
	"type" => "Link"
	}
	]
	}
	])

	object
	\|> Ecto.Changeset.change(data: object_data)
	\|> Pleroma.Repo.update()

	{:ok, activity2} = CommonAPI.post(user, %{status: "42 This is :moominmamma #PleromaArt"})

	{:ok, _activity3} = CommonAPI.post(user, %{status: "This is :moominmamma"})

	response =
	conn
	\|> put_req_header("accept", "application/rss+xml")
	\|> get(tag_feed_path(conn, :feed, "pleromaart.rss"))
	\|> response(200)

	xml = parse(response)
	assert xpath(xml, ~x"//channel/title/text()") == ~c"#pleromaart"

	assert xpath(xml, ~x"//channel/description/text()"s) ==
	"These are public toots tagged with #pleromaart. You can interact with them if you have an account anywhere in the fediverse."

	assert xpath(xml, ~x"//channel/link/text()") ==
	~c"#{Pleroma.Web.Endpoint.url()}/tags/pleromaart.rss"

	assert xpath(xml, ~x"//channel/webfeeds:logo/text()") ==
	~c"#{Pleroma.Web.Endpoint.url()}/static/logo.svg"

	assert xpath(xml, ~x"//channel/item/title/text()"l) == [
	~c"42 This is :moominmamm...",
	~c"yeah #PleromaArt"
	]

	assert xpath(xml, ~x"//channel/item/pubDate/text()"sl) == [
	FeedView.to_rfc2822(activity2.data["published"]),
	FeedView.to_rfc2822(activity1.data["published"])
	]

	- assert xpath(xml, ~x"//channel/item/enclosure/@url"sl) == [
	+ assert xpath(xml, ~x"//channel/item/media:content/@url"sl) == [
	"https://peertube.moe/static/webseed/df5f464b-be8d-46fb-ad81-2d4c2d1630e3-480.mp4"
	]

	obj1 = Object.normalize(activity1, fetch: false)
	obj2 = Object.normalize(activity2, fetch: false)

	assert xpath(xml, ~x"//channel/item/description/text()"sl) == [
	HtmlEntities.decode(FeedView.activity_content(obj2.data)),
	HtmlEntities.decode(FeedView.activity_content(obj1.data))
	]

	response =
	conn
	\|> put_req_header("accept", "application/rss+xml")
	\|> get(tag_feed_path(conn, :feed, "pleromaart.rss"))
	\|> response(200)

	xml = parse(response)
	assert xpath(xml, ~x"//channel/title/text()") == ~c"#pleromaart"

	assert xpath(xml, ~x"//channel/description/text()"s) ==
	"These are public toots tagged with #pleromaart. You can interact with them if you have an account anywhere in the fediverse."

	conn =
	conn
	\|> put_req_header("accept", "application/rss+xml")
	\|> get("/tags/pleromaart.rss", %{"max_id" => activity2.id})

	assert get_resp_header(conn, "content-type") == ["application/rss+xml; charset=utf-8"]
	resp = response(conn, 200)
	xml = parse(resp)

	assert xpath(xml, ~x"//channel/title/text()") == ~c"#pleromaart"

	assert xpath(xml, ~x"//channel/item/title/text()"l) == [
	~c"yeah #PleromaArt"
	]
	end

	describe "private instance" do
	setup do: clear_config([:instance, :public], false)

	test "returns 404 for tags feed", %{conn: conn} do
	conn
	\|> put_req_header("accept", "application/rss+xml")
	\|> get(tag_feed_path(conn, :feed, "pleromaart.rss"))
	\|> response(404)
	end
	end

	describe "restricted for unauthenticated" do
	test "returns 404 when local timeline is disabled", %{conn: conn} do
	clear_config([:restrict_unauthenticated, :timelines], %{local: true, federated: false})

	conn
	\|> put_req_header("accept", "application/rss+xml")
	\|> get(tag_feed_path(conn, :feed, "pleromaart.rss"))
	\|> response(404)
	end

	test "returns local posts only when federated timeline is disabled", %{conn: conn} do
	clear_config([:restrict_unauthenticated, :timelines], %{local: false, federated: true})

	local_user = insert(:user)
	remote_user = insert(:user, local: false)

	local_note =
	insert(:note,
	user: local_user,
	data: %{
	"content" => "local post #PleromaArt",
	"summary" => "",
	"tag" => ["pleromaart"]
	}
	)

	remote_note =
	insert(:note,
	user: remote_user,
	data: %{
	"content" => "remote post #PleromaArt",
	"summary" => "",
	"tag" => ["pleromaart"]
	},
	local: false
	)

	insert(:note_activity, user: local_user, note: local_note)
	insert(:note_activity, user: remote_user, note: remote_note, local: false)

	response =
	conn
	\|> put_req_header("accept", "application/rss+xml")
	\|> get(tag_feed_path(conn, :feed, "pleromaart.rss"))
	\|> response(200)

	xml = parse(response)

	assert xpath(xml, ~x"//channel/title/text()") == ~c"#pleromaart"

	assert xpath(xml, ~x"//channel/item/title/text()"l) == [
	~c"local post #PleromaArt"
	]
	end
	end
	end

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