From dc07204f0337a6a39b729ef2919f741add42a595 Mon Sep 17 00:00:00 2001
From: Cort Buffington <n0mjs@me.com>
Date: Sun, 20 Apr 2014 21:37:59 -0500
Subject: [PATCH] NOT YET WORKING
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Playback transmissions by repeating a packet stream… not yet working.
---
 playback.py | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100755 playback.py

diff --git a/playback.py b/playback.py
new file mode 100755
index 0000000..8f98644
--- /dev/null
+++ b/playback.py
@@ -0,0 +1,87 @@
+#!/usr/bin/env python
+#
+# Copyright (c) 2013 Cortney T. Buffington, N0MJS and the K0USY Group. n0mjs@me.com
+#
+# This work is licensed under the Creative Commons Attribution-ShareAlike
+# 3.0 Unported License.To view a copy of this license, visit
+# http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to
+# Creative Commons, 444 Castro Street, Suite 900, Mountain View,
+# California, 94041, USA.
+
+# This is a sample application that "records" and replays transmissions for testing.
+
+# THIS MODULE DOES NOT YET WORK!!!!!
+
+from __future__ import print_function
+from twisted.internet import reactor
+from binascii import b2a_hex as h
+
+import time
+from dmrlink import IPSC, UnauthIPSC, NETWORK, networks, logger, dmr_nat, int_id, send_to_ipsc
+
+__author__ = 'Cortney T. Buffington, N0MJS'
+__copyright__ = 'Copyright (c) 2013 Cortney T. Buffington, N0MJS and the K0USY Group'
+__credits__ = 'Adam Fast, KC0YLK, Dave K, and he who wishes not to be named'
+__license__ = 'Creative Commons Attribution-ShareAlike 3.0 Unported'
+__version__ = '0.2a'
+__maintainer__ = 'Cort Buffington, N0MJS'
+__email__ = 'n0mjs@me.com'
+__status__ = 'Production'
+
+class playbackIPSC(IPSC):
+    
+    def __init__(self, *args, **kwargs):
+        IPSC.__init__(self, *args, **kwargs)
+        self.CALL_DATA = []
+        
+    #************************************************
+    #     CALLBACK FUNCTIONS FOR USER PACKET TYPES
+    #************************************************
+    
+    def group_voice(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
+        #_log = logger.debug
+        if not _end:
+            _tmp_data = _data
+            #_tmp_data = dmr_nat(_data, _src_sub, NETWORK[_network]['LOCAL']['RADIO_ID'])
+            self.CALL_DATA.append(_tmp_data)
+        if _end:
+            self.CALL_DATA.append(_data)
+            time.sleep(2)
+            print()
+            print('Repeating Group Voice Call ', h(_src_sub), ' ', h(_dst_sub) ,' ', h(_peerid), ' ', h(NETWORK[_network]['LOCAL']['RADIO_ID']))
+            for i in self.CALL_DATA:
+                _tmp_data = self.hashed_packet(NETWORK[_network]['LOCAL']['AUTH_KEY'], i)
+                # Send the packet to all peers in the target IPSC
+                send_to_ipsc(_network, _tmp_data)
+                print(_network, ' ', h(_tmp_data))
+                time.sleep(0.05)
+            self.CALL_DATA = []
+        
+
+class playbackUnauthIPSC(playbackIPSC):
+    
+    # There isn't a hash to build, so just return the data
+    #
+    def hashed_packet(self, _key, _data):
+        return _data   
+    
+    # Remove the hash from a packet and return the payload... except don't
+    #
+    def strip_hash(self, _data):
+        return _data
+    
+    # Everything is validated, so just return True
+    #
+    def validate_auth(self, _key, _data):
+        return True
+        
+if __name__ == '__main__':
+    logger.info('DMRlink \'playback.py\' (c) 2014 N0MJS & the K0USY Group - SYSTEM STARTING...')
+    for ipsc_network in NETWORK:
+        if NETWORK[ipsc_network]['LOCAL']['ENABLED']:
+            if NETWORK[ipsc_network]['LOCAL']['AUTH_ENABLED']:
+                networks[ipsc_network] = playbackIPSC(ipsc_network)
+            else:
+                networks[ipsc_network] = playbackUnauthIPSC(ipsc_network)
+            reactor.listenUDP(NETWORK[ipsc_network]['LOCAL']['PORT'], networks[ipsc_network])
+    reactor.run()
\ No newline at end of file