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ruby_version_compat.rb
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# frozen_string_literal: true # # Copyright (C) 2011 - present Instructure, Inc. # # This file is part of Canvas. # # Canvas is free software: you can redistribute it and/or modify it under # the terms of the GNU Affero General Public License as published by the Free # Software Foundation, version 3 of the License. # # Canvas is distributed in the hope that it will be useful, but WITHOUT ANY # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR # A PARTICULAR PURPOSE. See the GNU Affero General Public License for more # details. # # You should have received a copy of the GNU Affero General Public License along # with this program. If not, see <http://www.gnu.org/licenses/>. # This makes it so all parameters get converted to UTF-8 before they hit your # app. If someone sends invalid UTF-8 to your server, raise an exception. class ActionController::InvalidByteSequenceErrorFromParams < Encoding::InvalidByteSequenceError; end class ActionController::Base def force_utf8_params traverse = lambda do |object, block| case object when Hash object.each_value { |o| traverse.call(o, block) } when Array object.each { |o| traverse.call(o, block) } else block.call(object) end object end force_encoding = lambda do |o| if o.respond_to?(:force_encoding) o.force_encoding(Encoding::UTF_8) raise ActionController::InvalidByteSequenceErrorFromParams unless o.valid_encoding? end if o.respond_to?(:original_filename) && o.original_filename o.original_filename.force_encoding(Encoding::UTF_8) raise ActionController::InvalidByteSequenceErrorFromParams unless o.original_filename.valid_encoding? end end traverse.call(params, force_encoding) path_str = request.path.to_s if path_str.respond_to?(:force_encoding) path_str = path_str.dup.force_encoding(Encoding::UTF_8) raise ActionController::InvalidByteSequenceErrorFromParams unless path_str.valid_encoding? end end before_action :force_utf8_params end module ActiveRecord::Coders Utf8SafeYAMLColumn = YAMLColumn end