OpenProject is the leading open source project management software.
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openproject/app/uploaders/file_uploader.rb

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#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2018 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 docs/COPYRIGHT.rdoc for more details.
#++
module FileUploader
def self.included(base)
base.extend ClassMethods
end
##
# Returns an URL if the attachment is stored in an external (fog) attachment storage
# or nil otherwise.
def external_url
url = URI.parse download_url
url if url.host
rescue URI::InvalidURIError
nil
end
def external_storage?
!external_url.nil?
end
def local_file
file.to_file
end
def download_url
file.is_path? ? file.path : file.url
end
def cache_dir
self.class.cache_dir
end
def readable?
return false unless file && local_file
File.readable?(local_file)
end
# store! nil's the cache_id after it finishes so we need to remember it for deletion
def remember_cache_id(_new_file)
@cache_id_was = cache_id
end
def delete_tmp_dir(_new_file)
# make sure we don't delete other things accidentally by checking the name pattern
if @cache_id_was.present? && @cache_id_was =~ /\A[\d]{8}\-[\d]{4}\-[\d]+\-[\d]{4}\z/
FileUtils.rm_rf(File.join(cache_dir, @cache_id_was))
end
rescue => e
Rails.logger.error "Failed cleanup of upload file #{@cache_id_was}: #{e}"
end
# remember the tmp file
def cache!(new_file = sanitized_file)
super
@old_tmp_file = new_file
rescue => e
Rails.logger.error "Failed cache! of temporary upload file: #{e}"
end
def delete_old_tmp_file(_dummy)
@old_tmp_file.try :delete
rescue => e
Rails.logger.error "Failed cleanup of temporary upload file: #{e}"
end
module ClassMethods
def cache_dir
@cache_dir ||= File.join(Dir.tmpdir, 'op_uploaded_files')
end
end
end