canvas-lms/app/models/attachments/storage.rb

57 lines
1.7 KiB
Ruby

# frozen_string_literal: true
#
# Copyright (C) 2018 - 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 Attachments::Storage
def self.store_for_attachment(attachment, data)
if InstFS.enabled?
instfs_uuid = InstFS.direct_upload(
file_object: data,
file_name: attachment.display_name
)
attachment.instfs_uuid = instfs_uuid
attachment.md5 = Digest::SHA2.new(512).file(data).hexdigest if digest_file? data
# populate attachment fields if they were not already set
attachment.size ||= data.size
attachment.filename ||= detect_filename(data)
attachment.content_type ||= attachment.detect_mimetype(data)
attachment.workflow_state = "processed"
else
attachment.uploaded_data = data
end
data
end
def self.digest_file?(data)
File.file? data
rescue TypeError
false
end
def self.detect_filename(data)
if data.respond_to?(:original_filename)
data.original_filename
elsif data.respond_to?(:filename)
data.filename
elsif data.instance_of?(File)
File.basename(data)
end
end
end