From ff01fd3c4fe1edb45098a7730b97b9424b1222cc Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Wed, 16 Jan 2019 11:18:25 +0300
Subject: [PATCH] Remove caching because it does not affect performance and may
 be even worse in some cases

---
 lib/pleroma/web/metadata.ex | 25 -------------------------
 lib/pleroma/web/router.ex   |  2 +-
 2 files changed, 1 insertion(+), 26 deletions(-)

diff --git a/lib/pleroma/web/metadata.ex b/lib/pleroma/web/metadata.ex
index ddc74fb0d..d859dfd8b 100644
--- a/lib/pleroma/web/metadata.ex
+++ b/lib/pleroma/web/metadata.ex
@@ -2,31 +2,6 @@ defmodule Pleroma.Web.Metadata do
   alias Phoenix.HTML
 
   @providers Pleroma.Config.get([__MODULE__, :providers], [])
-  def get_cached_tags(%{activity: activity, user: user} = params) do
-    # We don't need to use the both activity and a user since the object can't change it's content
-    key = "#{:erlang.term_to_binary(user)}#{activity.data["id"]}"
-
-    Cachex.fetch!(:metadata_cache, key, fn _key ->
-      {:commit, build_tags(params)}
-    end)
-  end
-
-  def get_cached_tags(%{user: user} = params) do
-    # I am unsure how well ETS works with big keys
-    key = :erlang.term_to_binary(user)
-
-    Cachex.fetch!(:metadata_cache, key, fn _key ->
-      {:commit, build_tags(params)}
-    end)
-  end
-
-  def get_cached_tags(params) do
-    key = :erlang.term_to_binary(params)
-
-    Cachex.fetch!(:metadata_cache, key, fn _key ->
-      {:commit, build_tags(params)}
-    end)
-  end
 
   def build_tags(params) do
     Enum.reduce(@providers, "", fn parser, acc ->
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 1ecd4aee1..25e866c48 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -534,7 +534,7 @@ def redirector_with_meta(conn, %{"maybe_nickname_or_id" => maybe_nickname_or_id}
 
   def redirector_with_meta(conn, params) do
     {:ok, index_content} = File.read(index_file_path())
-    tags = Metadata.get_cached_tags(params)
+    tags = Metadata.build_tags(params)
     response = String.replace(index_content, "<!--server-generated-meta-->", tags)
 
     conn