2 files changed, 9 insertions, 23 deletions
diff --git a/app/controllers/media_proxy_controller.rb b/app/controllers/media_proxy_controller.rb
index d2a4cb207..3b228722f 100644
--- a/app/controllers/media_proxy_controller.rb
+++ b/app/controllers/media_proxy_controller.rb
@@ -4,6 +4,7 @@ class MediaProxyController < ApplicationController
   include RoutingHelper
   include Authorization
   include Redisable
+  include Lockable
 
   skip_before_action :store_current_location
   skip_before_action :require_functional!
@@ -16,14 +17,10 @@ class MediaProxyController < ApplicationController
   rescue_from HTTP::TimeoutError, HTTP::ConnectionError, OpenSSL::SSL::SSLError, with: :internal_server_error
 
   def show
-    RedisLock.acquire(lock_options) do |lock|
-      if lock.acquired?
-        @media_attachment = MediaAttachment.remote.attached.find(params[:id])
-        authorize @media_attachment.status, :show?
-        redownload! if @media_attachment.needs_redownload? && !reject_media?
-      else
-        raise Mastodon::RaceConditionError
-      end
+    with_lock("media_download:#{params[:id]}") do
+      @media_attachment = MediaAttachment.remote.attached.find(params[:id])
+      authorize @media_attachment.status, :show?
+      redownload! if @media_attachment.needs_redownload? && !reject_media?
     end
 
     redirect_to full_asset_url(@media_attachment.file.url(version))
@@ -45,10 +42,6 @@ class MediaProxyController < ApplicationController
     end
   end
 
-  def lock_options
-    { redis: redis, key: "media_download:#{params[:id]}", autorelease: 15.minutes.seconds }
-  end
-
   def reject_media?
     DomainBlock.reject_media?(@media_attachment.account.domain)
   end
diff --git a/app/controllers/settings/exports_controller.rb b/app/controllers/settings/exports_controller.rb
index 1638d3412..deaa7940e 100644
--- a/app/controllers/settings/exports_controller.rb
+++ b/app/controllers/settings/exports_controller.rb
@@ -3,6 +3,7 @@
 class Settings::ExportsController < Settings::BaseController
   include Authorization
   include Redisable
+  include Lockable
 
   skip_before_action :require_functional!
 
@@ -14,21 +15,13 @@ class Settings::ExportsController < Settings::BaseController
   def create
     backup = nil
 
-    RedisLock.acquire(lock_options) do |lock|
-      if lock.acquired?
-        authorize :backup, :create?
-        backup = current_user.backups.create!
-      else
-        raise Mastodon::RaceConditionError
-      end
+    with_lock("backup:#{current_user.id}") do
+      authorize :backup, :create?
+      backup = current_user.backups.create!
     end
 
     BackupWorker.perform_async(backup.id)
 
     redirect_to settings_export_path
   end
-
-  def lock_options
-    { redis: redis, key: "backup:#{current_user.id}" }
-  end
 end