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https://github.com/DJ2LS/FreeDATA
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Merge pull request #619 from DJ2LS/dev-send-message
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commit
01714c7691
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@ -3,3 +3,10 @@ import re
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def validate_freedata_callsign(callsign):
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regexp = "^[a-zA-Z]+\d+\w+-\d{1,2}$"
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return re.compile(regexp).match(callsign) is not None
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def validate_message_attachment(attachment):
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for field in ['name', 'type', 'data']:
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if field not in attachment:
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raise ValueError(f"Attachment missing '{field}'")
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if len(attachment[field]) < 1:
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raise ValueError(f"Attachment has empty '{field}'")
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26
modem/command_message_send.py
Normal file
26
modem/command_message_send.py
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@ -0,0 +1,26 @@
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from command import TxCommand
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import api_validations
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import base64
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from queue import Queue
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from arq_session_iss import ARQSessionISS
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from message_p2p import MessageP2P
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from arq_data_type_handler import ARQDataTypeHandler
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class SendMessageCommand(TxCommand):
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"""Command to send a P2P message using an ARQ transfer session
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"""
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def set_params_from_api(self, apiParams):
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origin = f"{self.config['STATION']['mycall']}-{self.config['STATION']['myssid']}"
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self.message = MessageP2P.from_api_params(origin, apiParams)
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def transmit(self, modem):
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data, data_type = self.arq_data_type_handler.prepare(self.message.to_payload, 'p2pmsg_lzma')
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iss = ARQSessionISS(self.config, modem,
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self.message.destination,
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data,
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self.state_manager,
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data_type)
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self.state_manager.register_arq_iss_session(iss)
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iss.start()
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71
modem/message_p2p.py
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71
modem/message_p2p.py
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@ -0,0 +1,71 @@
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import datetime
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import api_validations
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import base64
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import json
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class MessageP2P:
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def __init__(self, origin: str, destination: str, body: str, attachments: list) -> None:
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self.timestamp = datetime.datetime.now().isoformat()
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self.origin = origin
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self.destination = destination
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self.body = body
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self.attachments = attachments
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@classmethod
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def from_api_params(cls, origin: str, params: dict):
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dxcall = params['dxcall']
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if not api_validations.validate_freedata_callsign(dxcall):
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dxcall = f"{dxcall}-0"
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if not api_validations.validate_freedata_callsign(dxcall):
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raise ValueError(f"Invalid dxcall given ({params['dxcall']})")
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body = params['body']
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if len(body) < 1:
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raise ValueError(f"Body cannot be empty")
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attachments = []
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if 'attachments' in params:
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for a in params['attachments']:
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api_validations.validate_message_attachment(a)
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attachments.append(cls.__decode_attachment__(a))
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return cls(origin, dxcall, body, attachments)
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@classmethod
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def from_payload(cls, payload):
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payload_message = json.loads(payload)
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attachments = list(map(cls.__decode_attachment__, payload_message['attachments']))
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return cls(payload_message['origin'], payload_message['destination'],
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payload_message['body'], attachments)
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def get_id(self) -> str:
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return f"{self.origin}.{self.destination}.{self.timestamp}"
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def __encode_attachment__(self, binary_attachment: dict):
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encoded_attachment = binary_attachment.copy()
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encoded_attachment['data'] = str(base64.b64encode(binary_attachment['data']), 'utf-8')
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return encoded_attachment
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def __decode_attachment__(encoded_attachment: dict):
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decoded_attachment = encoded_attachment.copy()
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decoded_attachment['data'] = base64.b64decode(encoded_attachment['data'])
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return decoded_attachment
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def to_dict(self):
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"""Make a dictionary out of the message data
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"""
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return {
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'id': self.get_id(),
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'origin': self.origin,
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'destination': self.destination,
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'body': self.body,
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'attachments': list(map(self.__encode_attachment__, self.attachments)),
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}
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def to_payload(self):
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"""Make a byte array ready to be sent out of the message data"""
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json_string = json.dumps(self.to_dict())
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return json_string
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@ -16,6 +16,7 @@ import command_ping
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import command_feq
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import command_test
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import command_arq_raw
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import command_message_send
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import event_manager
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app = Flask(__name__)
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@ -234,6 +235,13 @@ def get_post_radio():
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elif request.method == 'GET':
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return api_response(app.state_manager.get_radio_status())
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@app.route('/freedata/messages', methods=['POST'])
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def post_freedata_message():
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if enqueue_tx_command(command_message_send.SendMessageCommand, request.json):
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return api_response(request.json)
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else:
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api_abort('Error executing command...', 500)
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# @app.route('/modem/arq_connect', methods=['POST'])
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# @app.route('/modem/arq_disconnect', methods=['POST'])
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# @app.route('/modem/send_raw', methods=['POST'])
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43
tests/test_message_p2p.py
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43
tests/test_message_p2p.py
Executable file
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@ -0,0 +1,43 @@
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import sys
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sys.path.append('modem')
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import numpy as np
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import unittest
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from config import CONFIG
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from message_p2p import MessageP2P
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class TestDataFrameFactory(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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config_manager = CONFIG('modem/config.ini.example')
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cls.config = config_manager.read()
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cls.mycall = f"{cls.config['STATION']['mycall']}-{cls.config['STATION']['myssid']}"
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def testFromApiParams(self):
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api_params = {
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'dxcall': 'DJ2LS-3',
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'body': 'Hello World!',
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}
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message = MessageP2P.from_api_params(self.mycall, api_params)
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self.assertEqual(message.destination, api_params['dxcall'])
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self.assertEqual(message.body, api_params['body'])
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def testToPayloadWithAttachment(self):
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attachment = {
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'name': 'test.gif',
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'type': 'image/gif',
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'data': np.random.bytes(1024)
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}
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message = MessageP2P(self.mycall, 'DJ2LS-3', 'Hello World!', [attachment])
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payload = message.to_payload()
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received_message = MessageP2P.from_payload(payload)
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self.assertEqual(message.origin, received_message.origin)
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self.assertEqual(message.destination, received_message.destination)
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self.assertCountEqual(message.attachments, received_message.attachments)
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self.assertEqual(attachment['data'], received_message.attachments[0]['data'])
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if __name__ == '__main__':
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unittest.main()
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