FTP server is gone from High Siera OSX Server

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It is gone finally… [macOS Server 5.4 changes in High Sierra you need to know about!])https://www.imore.com/changes-macos-server-54-high-sierra)

File Transfer Protocol (FTP): A longtime a security risk, for example for sending password information in clear text, FTP support will be removed from macOS server if you upgrade.

As my xeros printer/scanner suppors only ftp or samba(which is much much slower than the ftp) I have to run my own ftp server in my mac mini.

Googling sugggest me to use pyftpdlib

mini2:~ cychong$ pip install pyftpdlib
Collecting pyftpdlib
  Downloading pyftpdlib-1.5.2.tar.gz (179kB)
    100% |████████████████████████████████| 184kB 2.6MB/s 
Building wheels for collected packages: pyftpdlib
  Running setup.py bdist_wheel for pyftpdlib ... done
  Stored in directory: /Users/cychong/Library/Caches/pip/wheels/74/7c/3f/011ccb0b834d0bb28d1cebed7bd8178713d5b879129dd0b828
Successfully built pyftpdlib
Installing collected packages: pyftpdlib
Successfully installed pyftpdlib-1.5.2

The simple way is just running pyftplib with argument.

sudo python -m pyftpdlib -d /Users/scan/Public/incoming -p 21

However, this does not allow to specify user ID(seems that)

I just copy the sample from the pyftpdlib (https://github.com/giampaolo/pyftpdlib)

It just works.

mini2:~/Documents cychong$ cat pyftp.py 
#!/bin/env python

from pyftpdlib.authorizers import DummyAuthorizer
from pyftpdlib.handlers import FTPHandler
from pyftpdlib.servers import FTPServer

# change the username and password
username = "FIXME"
password = "FIXME"
home_dir = "FIXME"

authorizer = DummyAuthorizer()
authorizer.add_user(username, password, home_dir, perm="elradfmw")
#authorizer.add_anonymous("/home/nobody")

handler = FTPHandler
handler.authorizer = authorizer

server = FTPServer(("", 21), handler)
server.serve_forever()

I changed the ftp port from 21 to something else not to use sudo to run this script.