discourse/lib/theme_store/zip_importer.rb

68 lines
1.6 KiB
Ruby

# frozen_string_literal: true
require_dependency 'compression/engine'
module ThemeStore; end
class ThemeStore::ZipImporter
attr_reader :url
def initialize(filename, original_filename)
@temp_folder = "#{Pathname.new(Dir.tmpdir).realpath}/discourse_theme_#{SecureRandom.hex}"
@filename = filename
@original_filename = original_filename
end
def import!
FileUtils.mkdir(@temp_folder)
Dir.chdir(@temp_folder) do
available_size = SiteSetting.decompressed_theme_max_file_size_mb
Compression::Engine.engine_for(@original_filename).tap do |engine|
engine.decompress(@temp_folder, @filename, available_size)
engine.strip_directory(@temp_folder, @temp_folder, relative: true)
end
end
rescue RuntimeError
raise RemoteTheme::ImportError, I18n.t("themes.import_error.unpack_failed")
rescue Compression::Zip::ExtractFailed
raise RemoteTheme::ImportError, I18n.t("themes.import_error.file_too_big")
end
def cleanup!
FileUtils.rm_rf(@temp_folder)
end
def version
""
end
def real_path(relative)
fullpath = "#{@temp_folder}/#{relative}"
return nil unless File.exist?(fullpath)
# careful to handle symlinks here, don't want to expose random data
fullpath = Pathname.new(fullpath).realpath.to_s
if fullpath && fullpath.start_with?(@temp_folder)
fullpath
else
nil
end
end
def all_files
Dir.chdir(@temp_folder) do
Dir.glob("**/**").reject { |f| File.directory?(f) }
end
end
def [](value)
fullpath = real_path(value)
return nil unless fullpath
File.read(fullpath)
end
end