Files
gniza4linux/tui/__main__.py
2026-03-06 06:18:05 +02:00

162 lines
4.9 KiB
Python

import base64
import os
import re
import secrets
import socket
import subprocess
import sys
from pathlib import Path
from tui.app import GnizaApp
# Use GNIZA_DIR from env (set by bin/gniza), fall back to parent of tui/
_ROOT = os.environ.get("GNIZA_DIR", str(Path(__file__).resolve().parent.parent))
def _get_local_ip() -> str:
"""Get the machine's LAN IP for public_url."""
# Method 1: UDP socket trick
try:
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.settimeout(2)
s.connect(("8.8.8.8", 80))
ip = s.getsockname()[0]
s.close()
if ip and ip != "0.0.0.0":
return ip
except Exception:
pass
# Method 2: hostname -I
try:
result = subprocess.run(
["hostname", "-I"], capture_output=True, text=True, timeout=5
)
if result.returncode == 0:
ip = result.stdout.strip().split()[0]
if ip:
return ip
except Exception:
pass
# Method 3: hostname resolution
try:
return socket.gethostbyname(socket.gethostname())
except Exception:
return "127.0.0.1"
def _parse_web_args():
"""Parse --port and --host from sys.argv."""
port = 8080
host = "0.0.0.0"
for i, arg in enumerate(sys.argv):
if arg.startswith("--port="):
port = int(arg.split("=", 1)[1])
elif arg == "--port" and i + 1 < len(sys.argv):
port = int(sys.argv[i + 1])
elif arg.startswith("--host="):
host = arg.split("=", 1)[1]
elif arg == "--host" and i + 1 < len(sys.argv):
host = sys.argv[i + 1]
return host, port
def _load_web_credentials() -> tuple[str, str]:
"""Load WEB_USER and WEB_API_KEY from gniza.conf."""
config_dir = os.environ.get("GNIZA_CONFIG_DIR", "")
if not config_dir:
# Detect from mode
if os.geteuid() == 0:
config_dir = "/etc/gniza"
else:
config_dir = os.path.join(
os.environ.get("XDG_CONFIG_HOME", os.path.expanduser("~/.config")),
"gniza",
)
conf_path = Path(config_dir) / "gniza.conf"
user = "admin"
api_key = ""
if conf_path.is_file():
kv_re = re.compile(r'^([A-Z_][A-Z0-9_]*)="(.*)"$')
for line in conf_path.read_text().splitlines():
m = kv_re.match(line.strip())
if m:
if m.group(1) == "WEB_USER":
user = m.group(2)
elif m.group(1) == "WEB_API_KEY":
api_key = m.group(2)
return user, api_key
def main():
if "--web" in sys.argv:
from aiohttp import web as aio_web
from textual_serve.server import Server
host, port = _parse_web_args()
web_user, web_key = _load_web_credentials()
if not web_key:
print("WARNING: No WEB_API_KEY in gniza.conf. Web dashboard is unprotected.")
os.environ["PYTHONPATH"] = f"{_ROOT}:{os.environ.get('PYTHONPATH', '')}"
os.environ["GNIZA_DIR"] = _ROOT
# Determine public URL for WebSocket connections
if host == "0.0.0.0":
public_host = _get_local_ip()
else:
public_host = host
public_url = f"http://{public_host}:{port}"
print(f"GNIZA web: serving TUI at {public_url}")
if web_key:
print(f"GNIZA web: login with user={web_user!r}")
server = Server(
"python3 -m tui",
host=host,
port=port,
title="GNIZA Backup",
public_url=public_url,
)
# Add HTTP Basic Auth if API key is configured
if web_key:
@aio_web.middleware
async def basic_auth_middleware(request, handler):
auth_header = request.headers.get("Authorization", "")
if auth_header.startswith("Basic "):
try:
decoded = base64.b64decode(auth_header[6:]).decode("utf-8")
req_user, req_pass = decoded.split(":", 1)
if (
secrets.compare_digest(req_user, web_user)
and secrets.compare_digest(req_pass, web_key)
):
return await handler(request)
except Exception:
pass
return aio_web.Response(
status=401,
headers={"WWW-Authenticate": 'Basic realm="GNIZA"'},
text="Authentication required",
)
_orig_make_app = server._make_app
async def _authed_make_app():
app = await _orig_make_app()
app.middlewares.insert(0, basic_auth_middleware)
return app
server._make_app = _authed_make_app
server.serve()
else:
app = GnizaApp()
app.run()
if __name__ == "__main__":
main()