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WNS rejects pywebpush default ttl=0 with 400 Bad Request unless X-WNS-Cache-Policy matches TTL; iOS/APNs endpoints are unaffected. Co-authored-by: Cursor <cursoragent@cursor.com>
38 lines
1.1 KiB
Python
38 lines
1.1 KiB
Python
from typing import Any
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from pywebpush import WebPushException
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# WNS 默认 TTL（秒）；ttl>0 时需配 X-WNS-Cache-Policy: cache
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_WNS_DEFAULT_TTL = 86400
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def is_webpush_subscription_gone(error: WebPushException) -> bool:
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"""
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判断 WebPush 订阅是否已经在浏览器或推送服务侧失效。
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"""
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response: Any = getattr(error, "response", None)
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status_code = getattr(response, "status_code", None) or getattr(response, "status", None)
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return status_code in {404, 410}
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def is_wns_endpoint(endpoint: str | None) -> bool:
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"""
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判断是否为 Microsoft WNS（Edge/Windows）推送端点。
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"""
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return bool(endpoint and "notify.windows.com" in endpoint)
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def webpush_options_for_endpoint(endpoint: str | None) -> dict[str, Any]:
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"""
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按推送服务返回 pywebpush 额外参数。
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WNS 要求 TTL 与 X-WNS-Cache-Policy 一致，否则返回 400。
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见 https://github.com/web-push-libs/pywebpush/issues/162
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"""
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if not is_wns_endpoint(endpoint):
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return {}
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return {
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"ttl": _WNS_DEFAULT_TTL,
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"headers": {"X-WNS-Cache-Policy": "cache"},
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}
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