47 lines
1.2 KiB
Ruby
47 lines
1.2 KiB
Ruby
require 'fileutils'
|
|
require 'instiki_errors'
|
|
|
|
class FileYard
|
|
|
|
attr_reader :files_path
|
|
|
|
def initialize(files_path)
|
|
@files_path = files_path
|
|
FileUtils.mkdir_p(files_path) unless File.exist?(files_path)
|
|
@files = Dir["#{files_path}/*"].collect{|path| File.basename(path) if File.file?(path) }.compact
|
|
end
|
|
|
|
def upload_file(name, io)
|
|
sanitize_file_name(name)
|
|
if io.kind_of?(Tempfile)
|
|
io.close
|
|
FileUtils.mv(io.path, file_path(name))
|
|
else
|
|
File.open(file_path(name), 'wb') { |f| f.write(io.read) }
|
|
end
|
|
# just in case, restrict read access and prohibit write access to the uploaded file
|
|
FileUtils.chmod(0440, file_path(name))
|
|
end
|
|
|
|
def files
|
|
Dir["#{files_path}/*"].collect{|path| File.basename(path) if File.file?(path)}.compact
|
|
end
|
|
|
|
def has_file?(name)
|
|
files.include?(name)
|
|
end
|
|
|
|
def file_path(name)
|
|
"#{files_path}/#{name}"
|
|
end
|
|
|
|
SANE_FILE_NAME = /[-_\.A-Za-z0-9]{1,255}/
|
|
|
|
def sanitize_file_name(name)
|
|
unless name =~ SANE_FILE_NAME
|
|
raise Instiki::ValidationError.new("Invalid file name: '#{name}'.\n" +
|
|
"Only latin characters, digits, dots, underscores and dashes are accepted.")
|
|
end
|
|
end
|
|
|
|
end
|