openproject/app/services/attachments/create_service.rb

#-- copyright
# OpenProject is an open source project management software.
# Copyright (C) 2012-2021 the OpenProject GmbH
#
# 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) 2006-2013 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 COPYRIGHT and LICENSE files for more details.
#++

module Attachments
  class CreateService < BaseService
    include TouchContainer

    around_call :error_wrapped_call

    def persist(call)
      attachment = call.result
      if attachment.container
        in_container_mutex(attachment.container) { super }
      else
        super
      end
    end

    def in_container_mutex(container)
      OpenProject::Mutex.with_advisory_lock_transaction(container) do
        yield.tap do
          # Get the latest attachments to ensure having them all for journalization.
          # We just created an attachment and a different worker might have added attachments
          # in the meantime, e.g when bulk uploading.
          container.attachments.reload
        end
      end
    end

    def after_perform(call)
      attachment = call.result
      container = attachment.container

      touch(container) unless container.nil?

      OpenProject::Notifications.send(
        OpenProject::Events::ATTACHMENT_CREATED,
        attachment: attachment
      )

      call
    end

    def error_wrapped_call
      yield
    rescue StandardError => e
      log_attachment_saving_error(e)

      message =
        if e&.class&.to_s == 'Errno::EACCES'
          I18n.t('api_v3.errors.unable_to_create_attachment_permissions')
        else
          I18n.t('api_v3.errors.unable_to_create_attachment')
        end
      raise message
    end

    def log_attachment_saving_error(error)
      message = "Failed to save attachment: #{error&.class} - #{error&.message || 'Unknown error'}"

      OpenProject.logger.error message
    end
  end
end