Added packet_dupe_timeout conf

This patch adds the new packet_dump_timeout config option, defaulting to
60 seconds.   If the same packet matching the from, to, msgNo is RX'd
within that timeout the packet is considered a dupe and will be
dropped.  Ack packets are not subject to dupe checking.

aprsd/cmds/webchat.py

@@ -281,7 +281,9 @@ class SendMessageNamespace(Namespace):
         self.request = data
         data["from"] = CONF.callsign
         path = data.get("path", None)
-        if "," in path:
+        if not path:
+            path = []
+        elif "," in path:
             path_opts = path.split(",")
             path = [x.strip() for x in path_opts]
         else:

aprsd/conf/common.py

@@ -65,6 +65,11 @@ aprsd_opts = [
              "2 means 1 packet every 2 seconds allowed."
              "5 means 1 pack packet every 5 seconds allowed",
     ),
+    cfg.IntOpt(
+        "packet_dupe_timeout",
+        default=60,
+        help="The number of seconds before a packet is not considered a duplicate.",
+    ),
 ]
 
 watch_list_opts = [

aprsd/threads/rx.py

@@ -105,7 +105,7 @@ class APRSDPluginRXThread(APRSDRXThread):
                 # we send the 3 acks for the packet.
                 pkt_list.rx(packet)
                 self.packet_queue.put(packet)
-            elif packet.timestamp - found.timestamp < 60:
+            elif packet.timestamp - found.timestamp < CONF.packet_dupe_timeout:
                 # If the packet came in within 60 seconds of the
                 # Last time seeing the packet, then we drop it as a dupe.
                 LOG.warning(f"Packet {packet.from_call}:{packet.msgNo} already tracked, dropping.")