#!/usr/bin/env python # ############################################################################### # Copyright (C) 2016-2019 Cortney T. Buffington, N0MJS (and Mike Zingman N4IRR) # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU 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 ############################################################################### # Python modules we need import sys from bitarray import bitarray from time import time, sleep from importlib import import_module from random import randint from setproctitle import setproctitle # Twisted is pretty important, so I keep it separate from twisted.internet.protocol import Factory, Protocol from twisted.protocols.basic import NetstringReceiver from twisted.internet import reactor, task # Things we import from the main hblink module from hblink import HBSYSTEM, systems, hblink_handler, reportFactory, REPORT_OPCODES, config_reports, mk_aliases from dmr_utils3.utils import bytes_3, bytes_4, int_id, get_alias from dmr_utils3 import decode, bptc, const import config import log import const # The module needs logging logging, but handlers, etc. are controlled by the parent import logging logger = logging.getLogger(__name__) # Does anybody read this stuff? There's a PEP somewhere that says I should do this. __author__ = 'Cortney T. Buffington, N0MJS and Mike Zingman, N4IRR' __copyright__ = 'Copyright (c) 2016-2019 Cortney T. Buffington, N0MJS and the K0USY Group' __license__ = 'GNU GPLv3' __maintainer__ = 'Cort Buffington, N0MJS' __email__ = 'n0mjs@me.com' __status__ = 'pre-alpha' # Module gobal varaibles class playback(HBSYSTEM): def __init__(self, _name, _config, _report): HBSYSTEM.__init__(self, _name, _config, _report) # Status information for the system, TS1 & TS2 # 1 & 2 are "timeslot" # In TX_EMB_LC, 2-5 are burst B-E self.STATUS = { 1: { 'RX_START': time(), 'RX_SEQ': '\x00', 'RX_RFS': '\x00', 'TX_RFS': '\x00', 'RX_STREAM_ID': '\x00', 'TX_STREAM_ID': '\x00', 'RX_TGID': '\x00\x00\x00', 'TX_TGID': '\x00\x00\x00', 'RX_TIME': time(), 'TX_TIME': time(), 'RX_TYPE': const.HBPF_SLT_VTERM, 'RX_LC': '\x00', 'TX_H_LC': '\x00', 'TX_T_LC': '\x00', 'TX_EMB_LC': { 1: '\x00', 2: '\x00', 3: '\x00', 4: '\x00', } }, 2: { 'RX_START': time(), 'RX_SEQ': '\x00', 'RX_RFS': '\x00', 'TX_RFS': '\x00', 'RX_STREAM_ID': '\x00', 'TX_STREAM_ID': '\x00', 'RX_TGID': '\x00\x00\x00', 'TX_TGID': '\x00\x00\x00', 'RX_TIME': time(), 'TX_TIME': time(), 'RX_TYPE': const.HBPF_SLT_VTERM, 'RX_LC': '\x00', 'TX_H_LC': '\x00', 'TX_T_LC': '\x00', 'TX_EMB_LC': { 1: '\x00', 2: '\x00', 3: '\x00', 4: '\x00', } } } self.CALL_DATA = [] def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data): pkt_time = time() dmrpkt = _data[20:53] _bits = _data[15] if _call_type == 'group': # Is this is a new call stream? if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']): self.STATUS['RX_START'] = pkt_time logger.info('(%s) *START RECORDING* STREAM ID: %s SUB: %s (%s) REPEATER: %s (%s) TGID %s (%s), TS %s', \ self._system, int_id(_stream_id), get_alias(_rf_src, subscriber_ids), int_id(_rf_src), get_alias(_peer_id, peer_ids), int_id(_peer_id), get_alias(_dst_id, talkgroup_ids), int_id(_dst_id), _slot) self.CALL_DATA.append(_data) self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id return # Final actions - Is this a voice terminator? if (_frame_type == const.HBPF_DATA_SYNC) and (_dtype_vseq == const.HBPF_SLT_VTERM) and (self.STATUS[_slot]['RX_TYPE'] != const.HBPF_SLT_VTERM) and (self.CALL_DATA): call_duration = pkt_time - self.STATUS['RX_START'] #Change the stream ID self.CALL_DATA.append(_data) logger.info('(%s) *END RECORDING* STREAM ID: %s', self._system, int_id(_stream_id)) sleep(2) _new_stream_id = bytes_4(randint(0x00, 0xFFFFFFFF)) logger.info('(%s) *START PLAYBACK* STREAM ID: %s SUB: %s (%s) REPEATER: %s (%s) TGID %s (%s), TS %s, Duration: %s', \ self._system, int_id(_new_stream_id), get_alias(_rf_src, subscriber_ids), int_id(_rf_src), get_alias(_peer_id, peer_ids), int_id(_peer_id), get_alias(_dst_id, talkgroup_ids), int_id(_dst_id), _slot, call_duration) for i in self.CALL_DATA: i = i[:16] + _new_stream_id + i[20:] self.send_system(i) sleep(0.06) self.CALL_DATA = [] logger.info('(%s) *END PLAYBACK* STREAM ID: %s', self._system, int_id(_new_stream_id)) else: if self.CALL_DATA: #Change the stream ID self.CALL_DATA.append(_data) # Mark status variables for use later self.STATUS[_slot]['RX_RFS'] = _rf_src self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq self.STATUS[_slot]['RX_TGID'] = _dst_id self.STATUS[_slot]['RX_TIME'] = pkt_time self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id #************************************************ # MAIN PROGRAM LOOP STARTS HERE #************************************************ if __name__ == '__main__': import argparse import sys import os import signal from dmr_utils3.utils import try_download, mk_id_dict #Set process title early setproctitle(__file__) # Change the current directory to the location of the application os.chdir(os.path.dirname(os.path.realpath(sys.argv[0]))) # CLI argument parser - handles picking up the config file from the command line, and sending a "help" message parser = argparse.ArgumentParser() parser.add_argument('-c', '--config', action='store', dest='CONFIG_FILE', help='/full/path/to/config.file (usually hblink.cfg)') parser.add_argument('-l', '--logging', action='store', dest='LOG_LEVEL', help='Override config file logging level.') cli_args = parser.parse_args() # Ensure we have a path for the config file, if one wasn't specified, then use the default (top of file) if not cli_args.CONFIG_FILE: cli_args.CONFIG_FILE = os.path.dirname(os.path.abspath(__file__))+'/hblink.cfg' # Call the external routine to build the configuration dictionary CONFIG = config.build_config(cli_args.CONFIG_FILE) # Start the system logger if cli_args.LOG_LEVEL: CONFIG['LOGGER']['LOG_LEVEL'] = cli_args.LOG_LEVEL logger = log.config_logging(CONFIG['LOGGER']) logger.info('\n\nCopyright (c) 2013, 2014, 2015, 2016, 2018, 2019\n\tThe Founding Members of the K0USY Group. All rights reserved.\n') logger.debug('Logging system started, anything from here on gets logged') # Set up the signal handler def sig_handler(_signal, _frame): logger.info('SHUTDOWN: HBROUTER IS TERMINATING WITH SIGNAL %s', str(_signal)) hblink_handler(_signal, _frame) logger.info('SHUTDOWN: ALL SYSTEM HANDLERS EXECUTED - STOPPING REACTOR') reactor.stop() # Set signal handers so that we can gracefully exit if need be for sig in [signal.SIGTERM, signal.SIGINT]: signal.signal(sig, sig_handler) # ID ALIAS CREATION # Download if CONFIG['ALIASES']['TRY_DOWNLOAD'] == True: # Try updating peer aliases file result = try_download(CONFIG['ALIASES']['PATH'], CONFIG['ALIASES']['PEER_FILE'], CONFIG['ALIASES']['PEER_URL'], CONFIG['ALIASES']['STALE_TIME']) logger.info(result) # Try updating subscriber aliases file result = try_download(CONFIG['ALIASES']['PATH'], CONFIG['ALIASES']['SUBSCRIBER_FILE'], CONFIG['ALIASES']['SUBSCRIBER_URL'], CONFIG['ALIASES']['STALE_TIME']) logger.info(result) # Create the name-number mapping dictionaries peer_ids, subscriber_ids, talkgroup_ids = mk_aliases(CONFIG) # INITIALIZE THE REPORTING LOOP report_server = config_reports(CONFIG, reportFactory) # HBlink instance creation logger.info('HBlink \'playback.py\' (c) 2017-2019 Cort Buffington, N0MJS & Mike Zingman, N4IRR -- SYSTEM STARTING...') for system in CONFIG['SYSTEMS']: if CONFIG['SYSTEMS'][system]['ENABLED']: if CONFIG['SYSTEMS'][system]['MODE'] == 'OPENBRIDGE': logger.critical('%s FATAL: Instance is mode \'OPENBRIDGE\', \n\t\t...Which would be tragic for playback, since it carries multiple call\n\t\tstreams simultaneously. playback.py onlyl works with MMDVM-based systems', system) sys.exit('playback.py cannot function with systems that are not MMDVM devices. System {} is configured as an OPENBRIDGE'.format(system)) else: systems[system] = playback(system, CONFIG, report_server) reactor.listenUDP(CONFIG['SYSTEMS'][system]['PORT'], systems[system], interface=CONFIG['SYSTEMS'][system]['IP']) logger.debug('%s instance created: %s, %s', CONFIG['SYSTEMS'][system]['MODE'], system, systems[system]) reactor.run()