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#!/usr/bin/env ruby
# SPDX-FileCopyrightText: 2019 Harald Sitter <sitter@kde.org>
#
# SPDX-License-Identifier: LGPL-2.0-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
require 'ftpd'
require 'logger'
require 'tmpdir'
STDOUT.sync = true
# Monkey patch the site handler, it's not implemented so fake it a bit for ftp
# worker purposes.
# FIXME: and yet I seee kio_ftp(8319)/(kf5.kio.kio_ftp) Ftp::ftpChmod: ftpChmod: CHMOD not supported - disabling
module Ftpd
class CmdSite
alias cmd_site_orig cmd_site
def cmd_site(_argument)
# We don't support chmod bugger off.
reply '500 cmd_site.'
end
end
end
module Ftpd
class CmdRest
def cmd_rest(_argument)
reply "350 cmd_rest."
end
end
end
module Ftpd
class CmdStor
alias cmd_stor_orig cmd_stor
def cmd_stor(argument)
if argument.include?('__badResume__')
reply '550 out of quota'
else
cmd_stor_orig(argument)
end
end
end
end
# Add some simulation capabilities to the file system
class MangledDiskFileSystem < Ftpd::DiskFileSystem
def accessible?(path, *args)
return false if path.include?('__inaccessiblePath__')
super(path, *args)
end
end
class Driver
def initialize(temp_dir)
@temp_dir = temp_dir
end
def authenticate(_user, _password)
true
end
def file_system(_user)
MangledDiskFileSystem.new(@temp_dir)
end
end
# NB: stderr is used to communicate with the parent!
port = ARGV.fetch(0)
temp_dir = ARGV.fetch(1)
driver = Driver.new(temp_dir)
server = Ftpd::FtpServer.new(driver)
server.port = port
server.log = Logger.new($stdout)
server.start
warn "port = #{server.bound_port}"
puts "Server listening on port #{server.bound_port}"
loop do
sleep(1)
end
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