metatrader-mcp-server

def _login(connection): """ Login to the MetaTrader 5 terminal. Returns: bool: True if successful, False otherwise. Raises: LoginError: If login fails. """ import random import time import logging logger = logging.getLogger("MT5Connection") from metatrader_client.exceptions import LoginError import MetaTrader5 as mt5 if mt5.account_info() is not None: logger.debug("Already logged in") return True if connection.login is None or connection.password is None or connection.server is None: if mt5.terminal_info() is not None: logger.debug("No login credentials provided, but terminal is initialized") return True else: raise LoginError("Login credentials not provided") logger.debug(f"Attempting to login with login={connection.login}, server={connection.server}") retries = 0 while retries < connection.max_retries: try: result = mt5.login( login=connection.login, password=connection.password, server=connection.server ) if result: logger.debug("Login successful!") return True error_code, error_message = connection._get_last_error() backoff_time = connection.backoff_factor ** retries + random.uniform(0, 0.5) logger.warning(f"Login failed: {error_message} (Error code: {error_code}). Retrying in {backoff_time:.2f} seconds.") time.sleep(backoff_time) except Exception as e: logger.error(f"Unexpected error during login: {str(e)}") backoff_time = connection.backoff_factor ** retries + random.uniform(0, 0.5) time.sleep(backoff_time) retries += 1 error_code, error_message = connection._get_last_error() raise LoginError(f"Failed to login to MetaTrader 5 terminal: {error_message} (Error code: {error_code})")