Backup automatico script del 2026-09-27 07:00

services/loogle-mcp/app/mcp/server.py

@@ -8,7 +8,20 @@ from typing import Any, Optional
 from . import tools
 
 LOGGER = logging.getLogger("loogle_mcp.server")
-PROTOCOL_VERSION = "2024-11-05"
+# Versioni supportate, dalla più recente: si risponde con quella chiesta dal client
+# se supportata, altrimenti con la più recente (negoziazione MCP lifecycle)
+SUPPORTED_PROTOCOL_VERSIONS = ("2025-06-18", "2025-03-26", "2024-11-05")
+
+
+def negotiate_protocol_version(requested: Optional[str]) -> str:
+    if requested in SUPPORTED_PROTOCOL_VERSIONS:
+        return requested
+    return SUPPORTED_PROTOCOL_VERSIONS[0]
+
+
+def expects_response(msg: Any) -> bool:
+    """Solo le request JSON-RPC (method + id) hanno risposta; notifiche e response no."""
+    return isinstance(msg, dict) and "method" in msg and "id" in msg
 
 
 def _error(req_id: Any, code: int, message: str) -> dict:
@@ -25,18 +38,21 @@ def handle_message(body: dict, claims: Optional[dict]) -> dict:
     params = body.get("params") or {}
 
     if method == "initialize":
+        requested = params.get("protocolVersion")
+        version = negotiate_protocol_version(requested)
+        LOGGER.info(
+            "initialize: client=%s protocollo richiesto=%s negoziato=%s",
+            (params.get("clientInfo") or {}).get("name"), requested, version,
+        )
         return _result(
             req_id,
             {
-                "protocolVersion": PROTOCOL_VERSION,
+                "protocolVersion": version,
                 "capabilities": {"tools": {}, "resources": {}},
                 "serverInfo": {"name": "loogle-mcp", "version": "1.0.0"},
             },
         )
 
-    if method == "notifications/initialized":
-        return _result(req_id, {})
-
     if method == "ping":
         return _result(req_id, {})
 
@@ -75,4 +91,4 @@ def handle_message(body: dict, claims: Optional[dict]) -> dict:
 
 
 def handle_batch(messages: list, claims: Optional[dict]) -> list:
-    return [handle_message(msg, claims) for msg in messages if isinstance(msg, dict)]
+    return [handle_message(msg, claims) for msg in messages if expects_response(msg)]