canvas-lms/app/controllers/oauth_proxy_controller.rb

36 lines
1.3 KiB
Ruby

#
# 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/>.
#
class OauthProxyController < ApplicationController
skip_before_action :load_user
def redirect_proxy
reject! t("The state parameter is required") and return unless params[:state]
begin
json = Canvas::Security.decode_jwt(params[:state])
url = URI.parse(json['redirect_uri'])
filtered_params = params.permit(:state, :code)
url.query = url.query.blank? ? filtered_params.to_h.to_query : "#{url.query}&#{filtered_params.to_h.to_query}"
redirect_to url.to_s
rescue JSON::JWT::InvalidFormat, Canvas::Security::InvalidToken
reject! t("Invalid state parameter") and return
end
end
end