I am currently writing a small script in Python which reads some possible connections from a database (triple of node name, telnet IP address and telnet port) and present that to the user to choose to which node to connect.
After this selection I want to open an interactive Telnet session, which can be used by the user as if he had manually connected using the telnet command. Somehow I probably will need an escape sequence for that. It only needs to work on Linux OS.
I could just call telnet:
# Open shell
call(["telnet", selected_node['ip'], selected_node['port']])
That does work. However, I wonder if there might be a better solution.
It's python, everything is included. There is a telnet module in the standard library.
import getpass
import telnetlib
HOST = "localhost"
user = input("Enter your remote account: ")
password = getpass.getpass()
tn = telnetlib.Telnet(HOST)
tn.read_until(b"login: ")
tn.write(user.encode('ascii') + b"\n")
if password:
tn.read_until(b"Password: ")
tn.write(password.encode('ascii') + b"\n")
tn.write(b"ls\n")
tn.write(b"exit\n")
print(tn.read_all().decode('ascii'))