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63 lines
2.1 KiB
63 lines
2.1 KiB
# -*- coding: utf-8 -*-
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###################################################################################
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#
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# Cybrosys Technologies Pvt. Ltd.
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# Copyright (C) 2022-TODAY Cybrosys Technologies(<http://www.cybrosys.com>).
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# Author: cybrosys(<https://www.cybrosys.com>)
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#
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# This program is free software: you can modify
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# it under the terms of the GNU Affero General Public License (AGPL) as
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# published by the Free Software Foundation, either version 3 of the
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# 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 Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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###################################################################################
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from struct import pack, unpack
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from .zkconst import *
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def zkconnect(self):
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"""Start a connection with the time clock"""
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command = CMD_CONNECT
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command_string = ''
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chksum = 0
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session_id = 0
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reply_id = -1 + USHRT_MAX
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buf = self.createHeader(command, chksum, session_id,
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reply_id, command_string)
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self.zkclient.sendto(buf, self.address)
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try:
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self.data_recv, addr = self.zkclient.recvfrom(1024)
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self.session_id = unpack('HHHH', self.data_recv[:8])[2]
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return self.checkValid( self.data_recv )
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except:
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return False
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def zkdisconnect(self):
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"""Disconnect from the clock"""
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command = CMD_EXIT
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command_string = ''
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chksum = 0
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session_id = self.session_id
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reply_id = unpack('HHHH', self.data_recv[:8])[3]
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buf = self.createHeader(command, chksum, session_id,
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reply_id, command_string)
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self.zkclient.sendto(buf, self.address)
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self.data_recv, addr = self.zkclient.recvfrom(1024)
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return self.checkValid( self.data_recv )
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