Source code for bareos.bsock.filedaemon

#   BAREOS - Backup Archiving REcovery Open Sourced
#   Copyright (C) 2016-2021 Bareos GmbH & Co. KG
#   This program is Free Software; you can redistribute it and/or
#   modify it under the terms of version three of the GNU Affero General Public
#   License as published by the Free Software Foundation and included
#   in the file LICENSE.
#   This program is distributed in the hope that it will be useful, but
#   WITHOUT ANY WARRANTY; without even the implied warranty of
#   Affero General Public License for more details.
#   You should have received a copy of the GNU Affero General Public License
#   along with this program; if not, write to the Free Software
#   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
#   02110-1301, USA.

Send and receive the response to Bareos File Daemon (bareos-fd).

from bareos.bsock.connectiontype import ConnectionType
from bareos.bsock.lowlevel import LowLevel
from bareos.bsock.protocolmessageids import ProtocolMessageIds
from bareos.bsock.tlsversionparser import TlsVersionParser
import bareos.exceptions
import shlex

[docs]class FileDaemon(LowLevel): """Send and receive the response to Bareos File Daemon (bareos-fd)."""
[docs] @staticmethod def argparser_add_default_command_line_arguments(argparser): """Extend argparser with :py:class:`FileDaemon` specific parameter. Every command line program must offer a similar set of parameter to connect to a Bareos File Daemon. This method adds the required parameter to an existing ArgParser instance. Parameter required to initialize a FileDaemon class are stored in variables prefixed with ``BAREOS_``. Use :py:func:`bareos.bsock.lowlevel.LowLevel.argparser_get_bareos_parameter` to retrieve the relevant parameter (with the ``BAREOS_`` prefix removed). Example: .. code-block:: python argparser = argparse.ArgumentParser(description='Connect to Bareos File Daemon.') FileDaemon.argparser_add_default_command_line_arguments(argparser) args = argparser.parse_args() bareos_args = DirectorConsole.argparser_get_bareos_parameter(args) fd = FileDaemon(**bareos_args) Args: argparser (ArgParser): ArgParser instance. """ argparser.add_argument( "--name", help="Name of the Director resource in the File Daemon.", required=True, dest="BAREOS_name", ) argparser.add_argument( "-p", "--password", help="Password to authenticate to a Bareos File Daemon.", required=True, dest="BAREOS_password", ) argparser.add_argument( "--port", default=9102, help="Bareos File Daemon network port.", dest="BAREOS_port", ) argparser.add_argument( "--address", default="localhost", help="Bareos File Daemon network address.", dest="BAREOS_address", ) argparser.add_argument( "--tls-psk-require", help="Allow only encrypted connections. Default: False.", action="store_true", dest="BAREOS_tls_psk_require", ) TlsVersionParser().add_argument(argparser)
def __init__( self, address="localhost", port=9102, name=None, password=None, tls_psk_enable=True, tls_psk_require=False, tls_version=None, ): """\ Args: address (str): Address of the Bareos File Daemon (hostname or IP). port (int): Port number of the Bareos File Daemon. name (str): Name of the File Daemon. password (str, bareos.util.Password): Password, in cleartext or as Password object. tls_psk_enable (boolean): Enable TLS-PSK. tls_psk_require (boolean): Enforce using TLS-PSK. tls_version (None, ssl.PROTOCOL_TLS, ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1_1, ssl.PROTOCOL_TLSv1_2): TLS protocol version to use. Raises: bareos.exceptions.ConnectionError: On connections errors. """ super(FileDaemon, self).__init__() self.tls_psk_enable = tls_psk_enable self.tls_psk_require = tls_psk_require if tls_version is not None: self.tls_version = tls_version # Well, we are not really a Director, # but using the interface provided for Directors. self.identity_prefix = u"R_DIRECTOR" self.connect(address, port, dirname, ConnectionType.FILEDAEMON, name, password) self._init_connection() def _finalize_authentication(self): code, text = self.receive_and_evaluate_response_message() self.logger.debug(u"code: {0}".format(code)) # # Test if authentication has been accepted. # if code == ProtocolMessageIds.FdOk:"Authentication: {0}".format(text)) self.auth_credentials_valid = True else: raise bareos.exceptions.AuthenticationError( "Received unexcepted message: {0} {1} (expecting auth ok)".format( code, text ) )
[docs] def call(self, command): """Calls a command on the Bareos File Daemon and returns its result. Args: command (str or list): Command to execute. Best provided as a list. Returns: bytes: Result received from the File Daemon. """ if isinstance(command, list): cmdlist = command else: cmdlist = shlex.split(command) command0 = [] for arg in cmdlist: command0.append(arg.replace(" ", "\x01")) return super(FileDaemon, self).call(command0)