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			58 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			58 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
# coding=utf8
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## Copyright (c) 2020 Arseniy Kuznetsov
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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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from mktxp.flow.processor.output import BaseOutputProcessor
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from mktxp.datasource.dhcp_ds import DHCPMetricsDataSource
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class DHCPOutput:
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    ''' DHCP Clients CLI Output
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    '''    
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    @staticmethod
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    def clients_summary(router_entry):
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        dhcp_lease_labels = ['host_name', 'comment', 'active_address', 'address', 'mac_address', 'server', 'expires_after']
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        dhcp_lease_records = DHCPMetricsDataSource.metric_records(router_entry, metric_labels = dhcp_lease_labels, add_router_id = False)
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        if not dhcp_lease_records:
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            print('No DHCP registration records')
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            return 
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        dhcp_by_server = {}
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        for dhcp_lease_record in sorted(dhcp_lease_records, key = lambda dhcp_record: dhcp_record['active_address'], reverse=True):
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            server = dhcp_lease_record.get('server', 'all')
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            if server == 'all':
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                dhcp_lease_record['server'] = server
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            if server in dhcp_by_server.keys():
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                dhcp_by_server[server].append(dhcp_lease_record)
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            else:
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                dhcp_by_server[server] = [dhcp_lease_record]         
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        output_records = 0
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        lease_records = len(dhcp_lease_records)        
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        output_entry = BaseOutputProcessor.OutputDHCPEntry
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        output_table = BaseOutputProcessor.output_table(output_entry)
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        for key in dhcp_by_server.keys():
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            for record in dhcp_by_server[key]:
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                record['host_name'] = BaseOutputProcessor.dhcp_name(router_entry, record, drop_comment = True)
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                output_table.add_row(output_entry(**record))
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                output_records += 1
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            if output_records < lease_records:
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                output_table.add_row(output_entry())
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        print (output_table.draw())
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        for server in dhcp_by_server.keys():
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            print(f'{server} clients: {len(dhcp_by_server[server])}')
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        print(f'Total DHCP clients: {output_records}', '\n')
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