# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/ # rubocop:disable ClassAndModuleChildren class Store::Provider::File # write file to fs def self.add(data, sha) # install file permission = '600' if !File.exist?( get_locaton(sha) ) Rails.logger.debug "storge write '#{ get_locaton(sha) }' (#{permission})" file = File.new( get_locaton(sha), 'wb' ) file.write( data ) file.close end File.chmod( permission.to_i(8), get_locaton(sha) ) # check sha local_sha = Digest::SHA256.hexdigest( get(sha) ) if sha != local_sha raise "ERROR: Corrupt file in fs #{ get_locaton(sha) }, sha should be #{sha} but is #{local_sha}" end true end # read file from fs def self.get(sha) Rails.logger.debug "read from fs #{ get_locaton(sha) }" if !File.exist?( get_locaton(sha) ) raise "ERROR: No such file #{ get_locaton(sha) }" end data = File.open( get_locaton(sha), 'rb' ) content = data.read # check sha local_sha = Digest::SHA256.hexdigest( content ) if local_sha != sha raise "ERROR: Corrupt file in fs #{ get_locaton(sha) }, sha should be #{sha} but is #{local_sha}" end content end # unlink file from fs def self.delete(sha) if File.exist?( get_locaton(sha) ) Rails.logger.info "storge remove '#{ get_locaton(sha) }'" File.delete( get_locaton(sha) ) end end # generate file location def self.get_locaton(sha) # generate directory base = "#{Rails.root}/storage/fs/" parts = sha.scan(/.{1,4}/) path = parts[ 1..10 ].join('/') + '/' file = parts[ 11..parts.count ].join('') location = "#{base}/#{path}" # create directory if not exists if !File.exist?( location ) FileUtils.mkdir_p( location ) end location += file end end