Fix base64-encoded file uploads not being possible (#12748)

Fix #3804, Fix #5776

app/controllers/admin/custom_emojis_controller.rb

@@ -2,10 +2,6 @@
 
 module Admin
   class CustomEmojisController < BaseController
-    include ObfuscateFilename
-
-    obfuscate_filename [:custom_emoji, :image]
-
     def index
       authorize :custom_emoji, :index?
 

app/controllers/api/v1/media_controller.rb

@@ -4,9 +4,6 @@ class Api::V1::MediaController < Api::BaseController
   before_action -> { doorkeeper_authorize! :write, :'write:media' }
   before_action :require_user!
 
-  include ObfuscateFilename
-  obfuscate_filename :file
-
   respond_to :json
 
   def create

app/controllers/application_controller.rb

@@ -24,6 +24,7 @@ class ApplicationController < ActionController::Base
   rescue_from ActionController::InvalidAuthenticityToken, with: :unprocessable_entity
   rescue_from ActionController::UnknownFormat, with: :not_acceptable
   rescue_from ActionController::ParameterMissing, with: :bad_request
+  rescue_from Paperclip::AdapterRegistry::NoHandlerError, with: :bad_request
   rescue_from ActiveRecord::RecordNotFound, with: :not_found
   rescue_from Mastodon::NotPermittedError, with: :forbidden
   rescue_from HTTP::Error, OpenSSL::SSL::SSLError, with: :internal_server_error

app/controllers/concerns/obfuscate_filename.rb

@@ -1,16 +0,0 @@
-# frozen_string_literal: true
-
-module ObfuscateFilename
-  extend ActiveSupport::Concern
-
-  class_methods do
-    def obfuscate_filename(path)
-      before_action do
-        file = params.dig(*path)
-        next if file.nil?
-
-        file.original_filename = SecureRandom.hex(8) + File.extname(file.original_filename)
-      end
-    end
-  end
-end

app/controllers/settings/profiles_controller.rb

@@ -1,16 +1,11 @@
 # frozen_string_literal: true
 
 class Settings::ProfilesController < Settings::BaseController
-  include ObfuscateFilename
-
   layout 'admin'
 
   before_action :authenticate_user!
   before_action :set_account
 
-  obfuscate_filename [:account, :avatar]
-  obfuscate_filename [:account, :header]
-
   def show
     @account.build_fields
   end