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Viewing / Editing File: defence360.py

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import asyncio
import logging
import os
import sys
from pathlib import Path

import defence360agent.internals.logger
from defence360agent.contracts.config import Core as Config
from defence360agent.rpc_tools.exceptions import ResponseError
from defence360agent.simple_rpc import SUCCESS, SocketError
from defence360agent.utils import is_root_user
from defence360agent.utils.cli import (
    EXIT_CODES,
    EXITCODE_GENERAL_ERROR,
    print_error,
    print_response,
    print_warnings,
)
from defence360agent.utils.parsers import EnvParser, create_cli_parser
from defence360agent.sentry import flush_sentry


logger = logging.getLogger(__name__)
RPM_TRANSACTION_LOCK = Path(
    "/var/lib/rpm-state/imunify360-transaction-in-progress"
)


def main(rpc_handlers_init, cli_args):
    # get ready to start: set conservative umask
    os.umask(Config.FILE_UMASK)

    defence360agent.internals.logger.reconfigure()

    rpc_handlers_init()
    parser = create_cli_parser()
    args = parser.parse_args(args=cli_args)

    if args.log_config or os.environ.get("IMUNIFY360_LOGGING_CONFIG_FILE"):
        defence360agent.internals.logger.update_logging_config_from_file(
            args.log_config or os.environ.get("IMUNIFY360_LOGGING_CONFIG_FILE")
        )
    if args.console_log_level:
        defence360agent.internals.logger.setConsoleLogLevel(
            args.console_log_level
        )
    if hasattr(args, "endpoint") and hasattr(args, "generate_endpoint_params"):
        try:
            cli_kwargs = args.generate_endpoint_params(args)
            envvar_kwargs = EnvParser.parse(
                os.environ,
                args.command,
                args.envvar_parameter_options,
                exclude=cli_kwargs,
            )
            result, data = args.endpoint(**envvar_kwargs, **cli_kwargs)

            print_warnings(data)
            flush_sentry()

            if result == SUCCESS:
                print_response(args.command, data, args.json, args.verbose)
            else:
                print_error(result, data, args.json, args.verbose)
                sys.exit(EXIT_CODES[result])
        except SocketError as e:
            print_response(
                None, {"items": "ERROR: {}".format(e)}, args.json, args.verbose
            )
            sys.exit(EXITCODE_GENERAL_ERROR)
    else:
        print(parser.format_help())


def entrypoint(rpc_handlers_init):
    if not is_root_user():
        logger.info("%s could be used by the root user only!", Config.NAME)
        print(
            "Imunify360 CLI is unavailable for non-root user", file=sys.stderr
        )
        sys.exit(EXITCODE_GENERAL_ERROR)
    try:
        main(rpc_handlers_init, sys.argv[1:])
    except KeyboardInterrupt:
        logger.warning("User pressed Ctrl+C, exiting...")
        sys.exit(EXITCODE_GENERAL_ERROR)
    except ResponseError as e:
        logger.error("Response error: %s", e)
        sys.exit(EXITCODE_GENERAL_ERROR)
    except ImportError as e:
        if RPM_TRANSACTION_LOCK.exists():
            logger.error("RPM transaction is in progress. %s", e)
            print(
                "RPM transaction is in progress. Please, wait until it is "
                "finished and try again.",
                file=sys.stderr,
            )
            sys.exit(EXITCODE_GENERAL_ERROR)
        else:
            logger.exception(
                "Unknown error happened. See logs for more information"
            )
            sys.exit(EXITCODE_GENERAL_ERROR)
    except Exception:
        logger.exception(
            "Unknown error happened. See logs for more information"
        )
        sys.exit(EXITCODE_GENERAL_ERROR)
    finally:
        # ensure loop is closed to prevent asyncio warning
        # (https://bugs.python.org/issue23548)
        asyncio.get_event_loop().close()
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