openproject/app/controllers/mail_handler_controller.rb

#-- encoding: UTF-8

#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2017 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# See doc/COPYRIGHT.rdoc for more details.
#++

class MailHandlerController < ActionController::Base
  before_action :check_credential

  verify method: :post,
         only: :index,
         render: { nothing: true, status: 405 }

  # Submits an incoming email to MailHandler
  def index
    options = params.dup
    email = options.delete(:email)
    if MailHandler.receive(email, options)
      head :created
    else
      head :unprocessable_entity
    end
  end

  private

  def check_credential
    User.current = nil
    unless Setting.mail_handler_api_enabled? && params[:key].to_s == Setting.mail_handler_api_key
      render plain: 'Access denied. Incoming emails WS is disabled or key is invalid.', status: 403
    end
  end
end