Sha256: 227eaf6c82c0ec93b73aa52da49a0dd872e51ac8bb139147768dce996b8263ff
Contents?: true
Size: 1.03 KB
Versions: 7
Compression:
Stored size: 1.03 KB
Contents
# encoding: utf-8
require 'cocaine'
module Ckeditor
module Utils
class ContentTypeDetector
EMPTY_CONTENT_TYPE = 'inode/x-empty'.freeze
DEFAULT_CONTENT_TYPE = 'application/octet-stream'.freeze
def initialize(file_path)
@file_path = file_path
end
# content type detection strategy:
#
# 1. empty file: returns 'inode/x-empty'
# 2. nonempty file: if the file is not empty then returns the content type using file command
# 3. invalid file: file command raises error and returns 'application/octet-stream'
def detect
empty_file? ? EMPTY_CONTENT_TYPE : content_type_from_file_command
end
private
def empty_file?
return true if @file_path.blank?
File.exist?(@file_path) && File.size(@file_path).zero?
end
def content_type_from_file_command
Cocaine::CommandLine.new('file', '-b --mime-type :file').run(file: @file_path).strip
rescue Cocaine::CommandLineError
DEFAULT_CONTENT_TYPE
end
end
end
end
Version data entries
7 entries across 7 versions & 2 rubygems