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import os
import subprocess
from typing import Dict
from uuid import uuid4

import port_for


def save_password(pw: str) -> str:
    """Save password in x11vnc format in temporary directory."""
    filename = f"/tmp/rwa/{uuid4()}.pw"
    os.makedirs("/tmp/rwa/", exist_ok=True)
    p = subprocess.Popen(["x11vnc", "-storepasswd", f"{pw}", filename])
    p.communicate()
    return filename


def run_vnc(pw_filename: str) -> Dict[str, Dict[str, int]]:
    """Run x11vnc and websockify with random, unique ports in background."""
    port = port_for.select_random()
    port_vnc = port_for.select_random()

    # Start VNC process
    p = subprocess.Popen(["x11vnc", "-rfbauth", pw_filename, "-rfbport", f"{port_vnc}"])

    # Start websockify
    p2 = subprocess.Popen(f"websockify {port} 127.0.0.1:{port_vnc}", shell=True,)

    return {
        "ws": {"pid": p2.pid, "port": port},
        "vnc": {"port": port_vnc, "pid": p.pid},
    }