DMRlink/playback.py
2016-12-18 21:51:13 -06:00

167 lines
7.3 KiB
Python
Executable File

#!/usr/bin/env python
#
###############################################################################
# Copyright (C) 2016 Cortney T. Buffington, N0MJS <n0mjs@me.com>
#
# 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
###############################################################################
# This is a sample application that "records" and replays transmissions for testing.
from __future__ import print_function
from twisted.internet import reactor
from binascii import b2a_hex as ahex
import sys, time
from dmrlink import IPSC, systems
from dmr_utils.utils import int_id, hex_str_3
__author__ = 'Cortney T. Buffington, N0MJS'
__copyright__ = 'Copyright (c) 2014 Cortney T. Buffington, N0MJS and the K0USY Group'
__credits__ = 'Adam Fast, KC0YLK; Dave Kierzkowski, KD8EYF'
__license__ = 'GNU GPLv3'
__maintainer__ = 'Cort Buffington, N0MJS'
__email__ = 'n0mjs@me.com'
try:
from playback_config import *
except ImportError:
sys.exit('Configuration file not found or invalid')
HEX_TGID = hex_str_3(TGID)
HEX_SUB = hex_str_3(SUB)
BOGUS_SUB = '\xFF\xFF\xFF'
class playbackIPSC(IPSC):
def __init__(self, _name, _config, _logger):
IPSC.__init__(self, _name, _config, _logger)
self.CALL_DATA = []
if GROUP_SRC_SUB:
self._logger.info('Playback: USING SUBSCRIBER ID: %s FOR GROUP REPEAT', GROUP_SRC_SUB)
self.GROUP_SRC_SUB = hex_str_3(GROUP_SRC_SUB)
if GROUP_REPEAT:
self._logger.info('Playback: GROUP REPEAT ENABLED')
if PRIVATE_REPEAT:
self._logger.info('Playback: PRIVATE REPEAT ENABLED')
#************************************************
# CALLBACK FUNCTIONS FOR USER PACKET TYPES
#************************************************
#
if GROUP_REPEAT:
def group_voice(self, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
if HEX_TGID == _dst_sub and _ts in GROUP_TS:
if not _end:
if not self.CALL_DATA:
self._logger.info('(%s) Receiving transmission to be played back from subscriber: %s', self._system, int_id(_src_sub))
_tmp_data = _data
#_tmp_data = dmr_nat(_data, _src_sub, self._config['LOCAL']['RADIO_ID'])
self.CALL_DATA.append(_tmp_data)
if _end:
self.CALL_DATA.append(_data)
time.sleep(2)
self._logger.info('(%s) Playing back transmission from subscriber: %s', self._system, int_id(_src_sub))
for i in self.CALL_DATA:
_tmp_data = i
_tmp_data = _tmp_data.replace(_peerid, self._config['LOCAL']['RADIO_ID'])
if GROUP_SRC_SUB:
_tmp_data = _tmp_data.replace(_src_sub, self.GROUP_SRC_SUB)
# Send the packet to all peers in the target IPSC
self.send_to_ipsc(_tmp_data)
time.sleep(0.06)
self.CALL_DATA = []
if PRIVATE_REPEAT:
def private_voice(self, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
if HEX_SUB == _dst_sub and _ts in PRIVATE_TS:
if not _end:
if not self.CALL_DATA:
self._logger.info('(%s) Receiving transmission to be played back from subscriber: %s, to subscriber: %s', self._system, int_id(_src_sub), int_id(_dst_sub))
_tmp_data = _data
self.CALL_DATA.append(_tmp_data)
if _end:
self.CALL_DATA.append(_data)
time.sleep(1)
self._logger.info('(%s) Playing back transmission from subscriber: %s, to subscriber %s', self._system, int_id(_src_sub), int_id(_dst_sub))
_orig_src = _src_sub
_orig_dst = _dst_sub
for i in self.CALL_DATA:
_tmp_data = i
_tmp_data = _tmp_data.replace(_peerid, self._config['LOCAL']['RADIO_ID'])
_tmp_data = _tmp_data.replace(_dst_sub, BOGUS_SUB)
_tmp_data = _tmp_data.replace(_src_sub, _orig_dst)
_tmp_data = _tmp_data.replace(BOGUS_SUB, _orig_src)
# Send the packet to all peers in the target IPSC
self.send_to_ipsc(_tmp_data)
time.sleep(0.06)
self.CALL_DATA = []
if __name__ == '__main__':
import argparse
import os
import sys
import signal
import dmrlink_log
import dmrlink_config
# 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='CFG_FILE', help='/full/path/to/config.file (usually dmrlink.cfg)')
cli_args = parser.parse_args()
if not cli_args.CFG_FILE:
cli_args.CFG_FILE = os.path.dirname(os.path.abspath(__file__))+'/dmrlink.cfg'
# Call the external routine to build the configuration dictionary
CONFIG = dmrlink_config.build_config(cli_args.CFG_FILE)
# Call the external routing to start the system logger
logger = dmrlink_log.config_logging(CONFIG['LOGGER'])
logger.info('DMRlink \'playback.py\' (c) 2013, 2014 N0MJS & the K0USY Group - SYSTEM STARTING...')
# Shut ourselves down gracefully with the IPSC peers.
def sig_handler(_signal, _frame):
logger.info('*** DMRLINK IS TERMINATING WITH SIGNAL %s ***', str(_signal))
for system in systems:
this_ipsc = systems[system]
logger.info('De-Registering from IPSC %s', system)
de_reg_req_pkt = this_ipsc.hashed_packet(this_ipsc._local['AUTH_KEY'], this_ipsc.DE_REG_REQ_PKT)
this_ipsc.send_to_ipsc(de_reg_req_pkt)
reactor.stop()
# Set signal handers so that we can gracefully exit if need be
for sig in [signal.SIGTERM, signal.SIGINT, signal.SIGQUIT]:
signal.signal(sig, sig_handler)
# INITIALIZE AN IPSC OBJECT (SELF SUSTAINING) FOR EACH CONFIGUED IPSC
for system in CONFIG['SYSTEMS']:
if CONFIG['SYSTEMS'][system]['LOCAL']['ENABLED']:
systems[system] = playbackIPSC(system, CONFIG, logger)
reactor.listenUDP(CONFIG['SYSTEMS'][system]['LOCAL']['PORT'], systems[system], interface=CONFIG['SYSTEMS'][system]['LOCAL']['IP'])
reactor.run()