#!/usr/bin/env python3
import paramiko

HOST = "challenge02.root-me.org"
PORT = 2222
USER = "app-systeme-ch13"
PASSWORD = "app-systeme-ch13"


def run() -> None:
    client = paramiko.SSHClient()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    client.connect(
        hostname=HOST, port=PORT, username=USER, password=PASSWORD, timeout=15
    )
    try:
        commands = [
            "pwd",
            "ls -la",
            "file ch13",
            "checksec --file=ch13 || true",
            "./ch13 <<<'AAAA'",
        ]
        for cmd in commands:
            stdin, stdout, stderr = client.exec_command(cmd)
            out = stdout.read().decode("utf-8", errors="replace")
            err = stderr.read().decode("utf-8", errors="replace")
            print(f"--- $ {cmd} ---")
            if out:
                print(out, end="" if out.endswith("\n") else "\n")
            if err:
                print("[stderr]")
                print(err, end="" if err.endswith("\n") else "\n")
    finally:
        client.close()


if __name__ == "__main__":
    run()