[refactor] replace pydantic by msgspec

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searx/favicons/config.py

@@ -4,9 +4,8 @@
 from __future__ import annotations
 
 import pathlib
-from pydantic import BaseModel
+import msgspec
 
-from searx.compat import tomllib
 from .cache import FaviconCacheConfig
 from .proxy import FaviconProxyConfig
 
@@ -19,7 +18,7 @@ TOML_CACHE_CFG: dict[str, "FaviconConfig"] = {}
 DEFAULT_CFG_TOML_PATH = pathlib.Path(__file__).parent / "favicons.toml"
 
 
-class FaviconConfig(BaseModel):
+class FaviconConfig(msgspec.Struct):  # pylint: disable=too-few-public-methods
     """The class aggregates configurations of the favicon tools"""
 
     cfg_schema: int
@@ -28,10 +27,10 @@ class FaviconConfig(BaseModel):
     By specifying a version, it is possible to ensure downward compatibility in
     the event of future changes to the configuration schema"""
 
-    cache: FaviconCacheConfig = FaviconCacheConfig()
+    cache: FaviconCacheConfig = FaviconCacheConfig
     """Setup of the :py:obj:`.cache.FaviconCacheConfig`."""
 
-    proxy: FaviconProxyConfig = FaviconProxyConfig()
+    proxy: FaviconProxyConfig = FaviconCacheConfig
     """Setup of the :py:obj:`.proxy.FaviconProxyConfig`."""
 
     @classmethod
@@ -45,18 +44,22 @@ class FaviconConfig(BaseModel):
             return cached
 
         with cfg_file.open("rb") as f:
+            data = f.read()
 
-            cfg = tomllib.load(f)
-            cfg = cfg.get("favicons", cfg)
+        cfg = msgspec.toml.decode(data, type=_FaviconConfig)
+        schema = cfg.favicons.cfg_schema
+        if schema != CONFIG_SCHEMA:
+            raise ValueError(
+                f"config schema version {CONFIG_SCHEMA} is needed, version {schema} is given in {cfg_file}"
+            )
 
-            schema = cfg.get("cfg_schema")
-            if schema != CONFIG_SCHEMA:
-                raise ValueError(
-                    f"config schema version {CONFIG_SCHEMA} is needed, version {schema} is given in {cfg_file}"
-                )
+        cfg = cfg.favicons
+        if use_cache and cached:
+            TOML_CACHE_CFG[str(cfg_file.resolve())] = cfg
 
-            cfg = cls(**cfg)
-            if use_cache and cached:
-                TOML_CACHE_CFG[str(cfg_file.resolve())] = cfg
+        return cfg
 
-            return cfg
+
+class _FaviconConfig(msgspec.Struct):  # pylint: disable=too-few-public-methods
+    # wrapper struct for root object "favicons."
+    favicons: FaviconConfig