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Refactored the main process_packet method
This patch refactored the process_packet method and adjusted the logic for determining if we got a message to filter on. We now look at the format to make a determination. Also isolated the processing of message packets, ack packets and mic-e packets into their own functions.
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@ -4,6 +4,7 @@ CHANGES
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v1.1.0
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------
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* Refactored the main process\_packet method
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* Update README with version 1.1.0 related info
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* Added fix for an unknown packet type
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* Ensure fortune is installed
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@ -6,7 +6,7 @@ ENV VERSION=1.0.0
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ENV APRS_USER=aprs
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ENV HOME=/home/aprs
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ENV APRSD=http://github.com/craigerl/aprsd.git
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ENV APRSD_BRANCH="master"
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ENV APRSD_BRANCH="v1.1.0"
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ENV VIRTUAL_ENV=$HOME/.venv3
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ENV INSTALL=$HOME/install
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139
aprsd/main.py
139
aprsd/main.py
@ -172,6 +172,71 @@ def setup_logging(config, loglevel, quiet):
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LOG.addHandler(sh)
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def process_ack_packet(packet):
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ack_num = packet.get("msgNo")
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LOG.info("Got ack for message {}".format(ack_num))
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messaging.log_message(
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"ACK", packet["raw"], None, ack=ack_num, fromcall=packet["from"]
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)
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messaging.ack_dict.update({int(ack_num): 1})
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return
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def process_mic_e_packet(packet):
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LOG.info("Mic-E Packet detected. Currenlty unsupported.")
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messaging.log_packet(packet)
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return
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def process_message_packet(packet):
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LOG.info("Got a message packet")
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fromcall = packet["from"]
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message = packet.get("message_text", None)
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msg_number = packet.get("msgNo", None)
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if msg_number:
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ack = msg_number
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else:
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ack = "0"
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messaging.log_message(
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"Received Message", packet["raw"], message, fromcall=fromcall, ack=ack
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)
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found_command = False
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# Get singleton of the PM
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pm = plugin.PluginManager()
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try:
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results = pm.run(fromcall=fromcall, message=message, ack=ack)
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for reply in results:
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found_command = True
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# A plugin can return a null message flag which signals
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# us that they processed the message correctly, but have
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# nothing to reply with, so we avoid replying with a usage string
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if reply is not messaging.NULL_MESSAGE:
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LOG.debug("Sending '{}'".format(reply))
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messaging.send_message(fromcall, reply)
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else:
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LOG.debug("Got NULL MESSAGE from plugin")
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if not found_command:
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plugins = pm.get_plugins()
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names = [x.command_name for x in plugins]
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names.sort()
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reply = "Usage: {}".format(", ".join(names))
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messaging.send_message(fromcall, reply)
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except Exception as ex:
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LOG.exception("Plugin failed!!!", ex)
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reply = "A Plugin failed! try again?"
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messaging.send_message(fromcall, reply)
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# let any threads do their thing, then ack
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# send an ack last
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messaging.send_ack(fromcall, ack)
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LOG.debug("Packet processing complete")
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def process_packet(packet):
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"""Process a packet recieved from aprs-is server."""
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@ -179,66 +244,22 @@ def process_packet(packet):
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try:
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LOG.debug("Got message: {}".format(packet))
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fromcall = packet["from"]
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message = packet.get("message_text", None)
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if not message:
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LOG.debug("Didn't get a message, could be an ack?")
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if packet.get("response", None) == "ack":
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# looks like an ACKa
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ack_num = packet.get("msgNo")
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LOG.info("Got ack for message {}".format(ack_num))
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messaging.log_message(
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"ACK", packet["raw"], None, ack=ack_num, fromcall=packet["from"]
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)
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messaging.ack_dict.update({int(ack_num): 1})
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return
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else:
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LOG.info("Don't know what to do with this message. Ignoring")
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messaging.log_packet(packet)
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return
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msg = packet.get("message_text", None)
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msg_format = packet.get("format", None)
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msg_response = packet.get("response", None)
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if msg_format == "message" and msg:
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# we want to send the message through the
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# plugins
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process_message_packet(packet)
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return
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elif msg_response == "ack":
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process_ack_packet(packet)
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return
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msg_number = packet.get("msgNo", None)
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if msg_number:
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ack = msg_number
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else:
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ack = "0"
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messaging.log_message(
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"Received Message", packet["raw"], message, fromcall=fromcall, ack=ack
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)
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found_command = False
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# Get singleton of the PM
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pm = plugin.PluginManager()
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try:
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results = pm.run(fromcall=fromcall, message=message, ack=ack)
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for reply in results:
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found_command = True
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# A plugin can return a null message flag which signals
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# us that they processed the message correctly, but have
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# nothing to reply with, so we avoid replying with a usage string
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if reply is not messaging.NULL_MESSAGE:
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LOG.debug("Sending '{}'".format(reply))
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messaging.send_message(fromcall, reply)
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else:
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LOG.debug("Got NULL MESSAGE from plugin")
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if not found_command:
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plugins = pm.get_plugins()
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names = [x.command_name for x in plugins]
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names.sort()
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reply = "Usage: {}".format(", ".join(names))
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messaging.send_message(fromcall, reply)
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except Exception as ex:
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LOG.exception("Plugin failed!!!", ex)
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reply = "A Plugin failed! try again?"
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messaging.send_message(fromcall, reply)
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# let any threads do their thing, then ack
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# send an ack last
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messaging.send_ack(fromcall, ack)
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LOG.debug("Packet processing complete")
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if msg_format == "mic-e":
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# process a mic-e packet
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process_mic_e_packet(packet)
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return
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except (aprslib.ParseError, aprslib.UnknownFormat) as exp:
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LOG.exception("Failed to parse packet from aprs-is", exp)
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