35 lines
1.0 KiB
Python
35 lines
1.0 KiB
Python
"""The address lamps use to reach Home Assistant. Deliberately free of Home Assistant imports."""
|
|
|
|
from __future__ import annotations
|
|
|
|
from urllib.parse import urlsplit
|
|
|
|
from .const import FIRMWARE_KEY_LENGTH, FIRMWARE_URL_PREFIX, MAX_LAMP_URL_LENGTH
|
|
|
|
|
|
def firmware_url(base: str, key: str) -> str:
|
|
return f"{base.rstrip('/')}{FIRMWARE_URL_PREFIX}{key}"
|
|
|
|
|
|
def validate_lamp_base_url(url: str) -> str | None:
|
|
"""Return None if usable, else the error key for the options form."""
|
|
try:
|
|
parts = urlsplit(url)
|
|
port_ok = parts.port is None or parts.port > 0
|
|
except ValueError:
|
|
return "invalid_base_url"
|
|
if (
|
|
parts.scheme != "http"
|
|
or not parts.hostname
|
|
or not port_ok
|
|
or parts.username
|
|
or parts.password
|
|
or parts.query
|
|
or parts.fragment
|
|
or parts.path not in ("", "/")
|
|
):
|
|
return "invalid_base_url"
|
|
if len(firmware_url(url, "k" * FIRMWARE_KEY_LENGTH)) > MAX_LAMP_URL_LENGTH:
|
|
return "base_url_too_long"
|
|
return None
|