feat: 接入远程订阅策略门禁 T-705

app/update_check.py

@@ -11,6 +11,7 @@ import re
 import urllib.request
 from dataclasses import dataclass
 
+from . import client_policy
 from .version import APP_CODE_NAME, APP_UPDATE_CHECK_URL, APP_VERSION
 
 DEFAULT_TIMEOUT_SECONDS = 3.0
@@ -54,6 +55,8 @@ class UpdateCheckResult:
     automatic_update_error: str = ""
     message: str = ""
     error: str = ""
+    client_policy: client_policy.ClientPolicy | None = None
+    client_policy_error: str = ""
 
     @property
     def can_enter(self) -> bool:
@@ -202,8 +205,31 @@ def check_for_update(
         return UpdateCheckResult(current_version=current_version, checked=False)
 
     try:
-        payload = (fetcher or fetch_update_payload)(url, timeout)
-        info = parse_update_info(_decode_payload(payload))
+        payload = _decode_payload((fetcher or fetch_update_payload)(url, timeout))
+    except Exception as exc:
+        return UpdateCheckResult(
+            current_version=current_version,
+            checked=True,
+            forced=False,
+            error=f"启动版本检查失败，已允许继续使用：{exc}",
+        )
+
+    resolved_policy = None
+    policy_error = ""
+    if isinstance(payload, dict) and "client_policy" in payload:
+        try:
+            resolved_policy = client_policy.parse_client_policy(
+                payload.get("client_policy")
+            )
+            policy_error = resolved_policy.warning
+        except client_policy.ClientPolicyError as exc:
+            policy_error = str(exc)
+
+    try:
+        if isinstance(payload, dict) and payload.get("release", object()) is None:
+            info = UpdateInfo()
+        else:
+            info = parse_update_info(payload)
         forced = is_forced_update(info, current_version)
         return UpdateCheckResult(
             current_version=current_version,
@@ -220,6 +246,8 @@ def check_for_update(
             signature_algorithm=info.signature_algorithm,
             manifest_signature=info.manifest_signature,
             message=info.message,
+            client_policy=resolved_policy,
+            client_policy_error=policy_error,
         )
     except Exception as exc:
         return UpdateCheckResult(
@@ -227,4 +255,6 @@ def check_for_update(
             checked=True,
             forced=False,
             error=f"启动版本检查失败，已允许继续使用：{exc}",
+            client_policy=resolved_policy,
+            client_policy_error=policy_error,
         )