loop-uh
d5a4715771
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49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
from __future__ import annotations
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from dataclasses import dataclass
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import json
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from urllib.request import Request
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from ..network.http_utils import urlopen
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@dataclass(slots=True)
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class UpdateInfo:
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version: str
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url: str
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notes: str = ""
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channel: str = "stable"
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digest_sha256: str = ""
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def check_update(feed_url: str, channel: str = "stable", timeout: float = 5.0) -> UpdateInfo | None:
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if not feed_url:
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return None
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request = Request(feed_url, headers={"User-Agent": "ZapretKVN/0.4"})
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with urlopen(request, timeout=timeout) as response:
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payload = json.loads(response.read().decode("utf-8"))
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if isinstance(payload, dict) and "channels" in payload:
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release = payload.get("channels", {}).get(channel)
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else:
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release = payload
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if not isinstance(release, dict):
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return None
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version = str(release.get("version") or "")
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url = str(release.get("url") or "")
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if not version or not url:
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return None
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digest = str(release.get("digest") or release.get("sha256") or "")
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if digest.lower().startswith("sha256:"):
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digest = digest.split(":", 1)[1].strip()
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return UpdateInfo(
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version=version,
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url=url,
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notes=str(release.get("notes") or ""),
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channel=str(release.get("channel") or channel),
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digest_sha256=digest,
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)
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