FTP

Dealing with FTP is something needed in many cases, Let’s see how easy is that in Ruby with AIO example.

FTP Client

require 'net/ftp'

ftp = Net::FTP.new('rubyfu.net', 'admin', 'P@ssw0rd')   # Create New FTP connection
ftp.welcome                                             # The server's welcome message
ftp.system                                              # Get system information
ftp.chdir 'go/to/another/path'                          # Change directory
file.pwd                                                # Get the correct directory
ftp.list('*')                                           # or ftp.ls, List all files and folders
ftp.mkdir 'rubyfu_backup'                               # Create directory
ftp.size 'src.png'                                      # Get file size
ftp.get 'src.png', 'dst.png', 1024                      # Download file
ftp.put 'file1.pdf', 'file1.pdf'                        # Upload file
ftp.rename 'file1.pdf', 'file2.pdf'                     # Rename file
ftp.delete 'file3.pdf'                                  # Delete file
ftp.quit                                                # Exit the FTP session
ftp.closed?                                             # Is the connection closed?
ftp.close                                               # Close the connection

Yep, it’s simple as that, easy and familiar.

TIP: You can do it all above way using pure socket library, it’s really easy. You may try to do it.

FTP Server

Install ftpd gem ``` gem install ftpd

Pure Ruby FTP server

KING SABRI | @KINGSABRI

require 'ftpd'

class Driver attr_accessor :path, :user, :pass def initialize(path) @path = path end

def authenticate(user, password) true end

def file_system(user) Ftpd::DiskFileSystem.new(@path) end

end

class FTPevil

def initialize(path=".") @driver = Driver.new(File.expand_path(path)) @server = Ftpd::FtpServer.new(@driver) configure_server print_connection_info end

def configure_server @server.server_name = "Rubyfu FTP Server" @server.interface = "0.0.0.0" @server.port = 21 end

def print_connection_info puts "[+] Servername: #{@server.server_name}" puts "[+] Interface: #{@server.interface}" puts "[+] Port: #{@server.port}" puts "[+] Directory: #{@driver.path}" puts "[+] User: #{@driver.user}" puts "[+] Pass: #{@driver.pass}" puts "[+] PID: #{$$}" end

def start @server.start puts "[+] FTP server started. (Press CRL+C to stop it)" $stdout.flush begin loop{} rescue Interrupt puts "\n[+] Closing FTP server." end end end

if ARGV.size >= 1 path = ARGV[0] else puts "[!] ruby #{FILE} " exit end

FTPevil.new(path).start


Run it

ruby ftpd.rb .

Interface: 0.0.0.0 Port: 21 Directory: /tmp/ftp-share User: Pass: PID: 2366 [+] FTP server started. (Press CRL+C to stop it) ```