Upload app.py

app.py

@@ -56,27 +56,72 @@ except ImportError as e:
     class InputValidator:
         def __init__(self, max_length=1000):
             self.max_length = max_length
-        def validate(self, text):
-            return text[:self.max_length] if text else ""
+
+        def _truncate(self, text: str) -> str:
+            return (text or "")[: self.max_length]
+
+        def validate(self, text: str) -> str:
+            return self._truncate(text)
+
+        def validate_user_id(self, user_id: str) -> str:
+            return self._truncate(user_id)
+
+        def validate_message(self, message: str) -> str:
+            return self._truncate(message)
+
+        def validate_input(self, value: str, _name: str = "") -> str:
+            return self._truncate(value)
     
     class RateLimiter:
         def __init__(self, requests_per_minute=60, requests_per_hour=1000):
-            pass
-        def check_rate_limit(self, user_id):
+            self.requests_per_minute = requests_per_minute
+            self.requests_per_hour = requests_per_hour
+
+        def check_rate_limit(self, user_id: str) -> bool:
             return True
+
+        def get_remaining_requests(self, _user_id: str) -> dict:
+            return {
+                "per_minute_remaining": self.requests_per_minute,
+                "per_hour_remaining": self.requests_per_hour,
+            }
     
     class SessionManager:
         def __init__(self, session_timeout_minutes=30):
-            pass
-        def create_session(self, user_id):
-            return f"session_{user_id}_{datetime.now().timestamp()}"
-        def validate_session(self, session_id):
-            return True
+            self.session_timeout_minutes = session_timeout_minutes
+            self.sessions: Dict[str, dict] = {}
+
+        def create_session(self, user_id: str, data: Optional[dict] = None) -> str:
+            session_id = f"session_{user_id}_{datetime.now().timestamp()}"
+            self.sessions[session_id] = {
+                "user_id": user_id,
+                "created_at": datetime.now(),
+                "last_activity": datetime.now(),
+                "data": data or {},
+            }
+            return session_id
+
+        def validate_session(self, session_id: str) -> Optional[dict]:
+            return self.sessions.get(session_id)
+
+        def destroy_session(self, session_id: str) -> None:
+            self.sessions.pop(session_id, None)
     
     class ErrorHandler:
-        def handle_error(self, error, context=""):
+        def __init__(self):
+            self._errors: List[dict] = []
+
+        def handle_error(self, error, context: str = ""):
             logger.error(f"Error: {error} - Context: {context}")
+            self._errors.append({
+                "error": str(error),
+                "context": context,
+                "time": datetime.now().isoformat(),
+            })
             return "An error occurred. Please try again."
+
+        def get_error_statistics(self) -> dict:
+            return {"total_errors": len(self._errors)}
     
     # Fallback decorators
     def handle_errors(func):