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# Copyright (C) 2014-2018 Greenbone Networks GmbH |
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# |
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# SPDX-License-Identifier: GPL-2.0-or-later |
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# |
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# This program is free software; you can redistribute it and/or |
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# modify it under the terms of the GNU General Public License |
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# as published by the Free Software Foundation; either version 2 |
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# of the License, or (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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# pylint: disable=too-many-lines |
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""" Miscellaneous classes and functions related to OSPD. |
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""" |
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import logging |
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import os |
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import sys |
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import uuid |
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import multiprocessing |
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from typing import Any, Callable, Iterable |
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from pathlib import Path |
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LOGGER = logging.getLogger(__name__) |
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def create_process( |
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func: Callable, *, args: Iterable[Any] = None |
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) -> multiprocessing.Process: |
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return multiprocessing.Process(target=func, args=args) |
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class ResultType(object): |
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""" Various scan results types values. """ |
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ALARM = 0 |
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LOG = 1 |
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ERROR = 2 |
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HOST_DETAIL = 3 |
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@classmethod |
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def get_str(cls, result_type: int) -> str: |
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""" Return string name of a result type. """ |
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if result_type == cls.ALARM: |
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return "Alarm" |
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elif result_type == cls.LOG: |
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return "Log Message" |
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elif result_type == cls.ERROR: |
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return "Error Message" |
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elif result_type == cls.HOST_DETAIL: |
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return "Host Detail" |
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else: |
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assert False, "Erroneous result type {0}.".format(result_type) |
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@classmethod |
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def get_type(cls, result_name: str) -> int: |
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""" Return string name of a result type. """ |
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if result_name == "Alarm": |
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return cls.ALARM |
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elif result_name == "Log Message": |
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return cls.LOG |
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elif result_name == "Error Message": |
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return cls.ERROR |
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elif result_name == "Host Detail": |
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return cls.HOST_DETAIL |
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else: |
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assert False, "Erroneous result name {0}.".format(result_name) |
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def valid_uuid(value) -> bool: |
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""" Check if value is a valid UUID. """ |
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try: |
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uuid.UUID(value, version=4) |
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return True |
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except (TypeError, ValueError, AttributeError): |
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return False |
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def go_to_background() -> None: |
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""" Daemonize the running process. """ |
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try: |
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if os.fork(): |
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sys.exit() |
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except OSError as errmsg: |
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LOGGER.error('Fork failed: %s', errmsg) |
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sys.exit(1) |
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def create_pid(pidfile: str) -> bool: |
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""" Check if there is an already running daemon and creates the pid file. |
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Otherwise gives an error. """ |
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pid = str(os.getpid()) |
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pidpath = Path(pidfile) |
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if pidpath.is_file(): |
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LOGGER.error("There is an already running process.") |
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return False |
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try: |
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with pidpath.open(mode='w') as f: |
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f.write(pid) |
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except (FileNotFoundError, PermissionError) as e: |
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LOGGER.error( |
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"Failed to create pid file %s. %s", str(pidpath.absolute()), e |
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) |
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return False |
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return True |
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greenbone /
ospd
