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#!/usr/bin/env python3
# Copyright (C) 2007 Giampaolo Rodola' <g.rodola@gmail.com>.
# Use of this source code is governed by MIT license that can be
# found in the LICENSE file.
"""A FTPd using local UNIX account database to authenticate users.
It temporarily impersonate the system users every time they are going
to perform a filesystem operations.
"""
from pyftpdlib.authorizers import UnixAuthorizer
from pyftpdlib.filesystems import UnixFilesystem
from pyftpdlib.handlers import FTPHandler
from pyftpdlib.servers import FTPServer
def main():
authorizer = UnixAuthorizer(
rejected_users=["root"], require_valid_shell=True
)
handler = FTPHandler
handler.authorizer = authorizer
handler.abstracted_fs = UnixFilesystem
server = FTPServer(('', 21), handler)
server.serve_forever()
if __name__ == "__main__":
main()
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