perf: reuse TLS context and avoid repeated frozen pip patch

astrbot/core/utils/http_ssl.py

@@ -1,5 +1,6 @@
 import logging
 import ssl
+import threading
 
 import aiohttp
 import certifi
@@ -7,26 +8,37 @@ import certifi
 logger = logging.getLogger("astrbot")
 
 _CERTIFI_WARNING_LOGGED = False
+_SHARED_TLS_CONTEXT: ssl.SSLContext | None = None
+_SHARED_TLS_CONTEXT_LOCK = threading.Lock()
 
 
 def build_ssl_context_with_certifi() -> ssl.SSLContext:
     """Build an SSL context from system trust store and add certifi CAs."""
     global _CERTIFI_WARNING_LOGGED
+    global _SHARED_TLS_CONTEXT
 
-    ssl_context = ssl.create_default_context()
+    if _SHARED_TLS_CONTEXT is not None:
+        return _SHARED_TLS_CONTEXT
 
-    try:
-        ssl_context.load_verify_locations(cafile=certifi.where())
-    except Exception as exc:
-        if not _CERTIFI_WARNING_LOGGED:
-            logger.warning(
-                "Failed to load certifi CA bundle into SSL context; "
-                "falling back to system trust store only: %s",
-                exc,
-            )
-            _CERTIFI_WARNING_LOGGED = True
+    with _SHARED_TLS_CONTEXT_LOCK:
+        if _SHARED_TLS_CONTEXT is not None:
+            return _SHARED_TLS_CONTEXT
 
-    return ssl_context
+        ssl_context = ssl.create_default_context()
+
+        try:
+            ssl_context.load_verify_locations(cafile=certifi.where())
+        except Exception as exc:
+            if not _CERTIFI_WARNING_LOGGED:
+                logger.warning(
+                    "Failed to load certifi CA bundle into SSL context; "
+                    "falling back to system trust store only: %s",
+                    exc,
+                )
+                _CERTIFI_WARNING_LOGGED = True
+
+        _SHARED_TLS_CONTEXT = ssl_context
+        return _SHARED_TLS_CONTEXT
 
 
 def build_tls_connector() -> aiohttp.TCPConnector:

astrbot/core/utils/pip_installer.py

@@ -11,6 +11,8 @@ from astrbot.core.utils.runtime_env import is_packaged_electron_runtime
 
 logger = logging.getLogger("astrbot")
 
+_DISTLIB_FINDER_PATCH_ATTEMPTED = False
+
 
 def _get_pip_main():
     try:
@@ -48,8 +50,14 @@ def _cleanup_added_root_handlers(original_handlers: list[logging.Handler]) -> No
 
 
 def _patch_distlib_finder_for_frozen_runtime() -> None:
+    global _DISTLIB_FINDER_PATCH_ATTEMPTED
+
     if not getattr(sys, "frozen", False):
         return
+    if _DISTLIB_FINDER_PATCH_ATTEMPTED:
+        return
+
+    _DISTLIB_FINDER_PATCH_ATTEMPTED = True
 
     try:
         from pip._vendor.distlib import resources as distlib_resources