init auth and main function

auth/manager.py

@@ -0,0 +1,74 @@
+import asyncio
+import hashlib
+import secrets
+import logging
+from datetime import datetime, timedelta
+from typing import Dict, Optional
+
+logger = logging.getLogger(__name__)
+
+
+class AuthManager:
+    """Управляет авторизацией: хеширование паролей, сессии, верификация."""
+
+    def __init__(self, session_timeout_minutes: int = 120):
+        self._sessions: Dict[int, datetime] = {}
+        self._failed_attempts: Dict[int, list] = {}
+        self._max_attempts = 5
+        self._lockout_duration = 300  # 5 минут блокировки
+        self._session_timeout = timedelta(minutes=session_timeout_minutes)
+
+    @staticmethod
+    def _hash_password(password: str, salt: str = None) -> tuple:
+        if salt is None:
+            salt = secrets.token_hex(16)
+        result = hashlib.sha256((salt + password).encode()).hexdigest()
+        return result, salt
+
+    def verify_password(self, password: str, password_hash: str, salt: str) -> bool:
+        computed, _ = self._hash_password(password, salt)
+        return secrets.compare_digest(computed, password_hash)
+
+    def is_authenticated(self, user_id: int) -> bool:
+        if user_id not in self._sessions:
+            return False
+        if datetime.now() - self._sessions[user_id] > self._session_timeout:
+            self.logout(user_id)
+            return False
+        return True
+
+    def login(self, user_id: int):
+        self._sessions[user_id] = datetime.now()
+        self._failed_attempts.pop(user_id, None)
+        logger.info(f"User {user_id} logged in")
+
+    def logout(self, user_id: int):
+        self._sessions.pop(user_id, None)
+        self._failed_attempts.pop(user_id, None)
+        logger.info(f"User {user_id} logged out")
+
+    def is_locked_out(self, user_id: int) -> bool:
+        if user_id not in self._failed_attempts:
+            return False
+        attempts = self._failed_attempts[user_id]
+        recent = [t for t in attempts if datetime.now() - t < timedelta(minutes=5)]
+        self._failed_attempts[user_id] = recent
+        if len(recent) >= self._max_attempts:
+            return True
+        return False
+
+    def record_failed_attempt(self, user_id: int):
+        if user_id not in self._failed_attempts:
+            self._failed_attempts[user_id] = []
+        self._failed_attempts[user_id].append(datetime.now())
+
+    def get_session_info(self, user_id: int) -> Optional[dict]:
+        if user_id not in self._sessions:
+            return None
+        login_time = self._sessions[user_id]
+        elapsed = datetime.now() - login_time
+        return {
+            "user_id": user_id,
+            "login_time": login_time.isoformat(),
+            "elapsed_minutes": int(elapsed.total_seconds() // 60),
+        }