49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
from __future__ import annotations
|
|
|
|
from dataclasses import dataclass
|
|
import json
|
|
from urllib.request import Request
|
|
|
|
from .http_utils import urlopen
|
|
|
|
|
|
@dataclass(slots=True)
|
|
class UpdateInfo:
|
|
version: str
|
|
url: str
|
|
notes: str = ""
|
|
channel: str = "stable"
|
|
digest_sha256: str = ""
|
|
|
|
|
|
def check_update(feed_url: str, channel: str = "stable", timeout: float = 5.0) -> UpdateInfo | None:
|
|
if not feed_url:
|
|
return None
|
|
|
|
request = Request(feed_url, headers={"User-Agent": "ZapretKVN/0.4"})
|
|
with urlopen(request, timeout=timeout) as response:
|
|
payload = json.loads(response.read().decode("utf-8"))
|
|
|
|
if isinstance(payload, dict) and "channels" in payload:
|
|
release = payload.get("channels", {}).get(channel)
|
|
else:
|
|
release = payload
|
|
|
|
if not isinstance(release, dict):
|
|
return None
|
|
version = str(release.get("version") or "")
|
|
url = str(release.get("url") or "")
|
|
if not version or not url:
|
|
return None
|
|
|
|
digest = str(release.get("digest") or release.get("sha256") or "")
|
|
if digest.lower().startswith("sha256:"):
|
|
digest = digest.split(":", 1)[1].strip()
|
|
|
|
return UpdateInfo(
|
|
version=version,
|
|
url=url,
|
|
notes=str(release.get("notes") or ""),
|
|
channel=str(release.get("channel") or channel),
|
|
digest_sha256=digest,
|
|
)
|