Add initial test of helium gw (#119)

Co-authored-by: Mark Jessop <darkside@Marks-MacBook-Pro.local>
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Mark Jessop 2023-08-25 14:12:19 +09:30 committed by GitHub
parent 852f68a1cc
commit 819d78fd59
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3 changed files with 377 additions and 2 deletions

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import json import json
import boto3
import zlib
import base64
import datetime
from email.utils import parsedate
import os
HELIUM_GW_VERSION = "2023.08.25"
def set_connection_header(request, operation_name, **kwargs):
request.headers['Connection'] = 'keep-alive'
sns = boto3.client("sns",region_name="us-east-1")
sns.meta.events.register('request-created.sns', set_connection_header)
def post(payload):
sns.publish(
TopicArn=os.getenv("HAM_SNS_TOPIC"),
Message=json.dumps(payload)
)
def upload(event, context):
if "isBase64Encoded" in event and event["isBase64Encoded"] == True:
event["body"] = base64.b64decode(event["body"])
if (
"content-encoding" in event["headers"]
and event["headers"]["content-encoding"] == "gzip"
):
event["body"] = zlib.decompress(event["body"], 16 + zlib.MAX_WBITS)
payloads = json.loads(event["body"])
to_sns = []
errors = []
warnings = []
# If only have one object, turn it into a single-entry list.
if type(payloads) == dict:
payloads = [payloads]
# Iterate over list:
for payload in payloads:
try:
telem = {
'software_name': 'SondeHub-Amateur Helium Gateway',
'software_version': HELIUM_GW_VERSION
}
#
# Extract mandatory fields.
#
# Name -> Payload Callsign
telem['payload_callsign'] = payload['name']
# Time
telem['datetime'] = datetime.datetime.utcfromtimestamp(payload["reported_at"]/1000.0).isoformat() + "Z"
# Positional and other data
telem_data = payload["decoded"]["payload"]
# Position
telem["position"] = f'{telem_data["latitude"]},{telem_data["longitude"]}'
telem["lat"] = telem_data['latitude']
telem["lon"] = telem_data['longitude']
telem["alt"] = telem_data['altitude']
#
# Other optional fields
#
if 'sats' in telem_data:
telem["sats"] = telem_data["sats"]
if 'battery' in telem_data:
telem["batt"] = telem_data["battery"]
if 'batt' in telem_data:
telem["batt"] = telem_data["batt"]
if 'speed' in telem_data:
telem['speed'] = telem_data['speed']
# Base64-encoded raw and payload packet data
if 'raw_packet' in payload:
telem['raw'] = payload['raw_packet']
if 'payload' in payload:
telem['raw_payload'] = payload['payload']
except Exception as e:
errors.append({
"error_message": f"Error parsing telemetry data - {str(e)}",
"payload": payload
})
continue
# Now iterate through the receiving stations
for hotspot in payload['hotspots']:
try:
hotspot_telem = telem.copy()
hotspot_telem['uploader_callsign'] = hotspot['name']
hotspot_telem['modulation'] = f"Helium ({hotspot['spreading']})"
hotspot_telem['snr'] = hotspot['snr']
hotspot_telem['rssi'] = hotspot['rssi']
hotspot_telem['frequency'] = hotspot['frequency']
hotspot_telem['time_received'] = datetime.datetime.utcfromtimestamp(hotspot["reported_at"]/1000.0).isoformat() + "Z"
try:
hotspot_telem['uploader_position'] = f'{hotspot["lat"]},{hotspot["long"]}'
hotspot_telem['uploader_alt'] = 0
except:
pass
to_sns.append(hotspot_telem)
except Exception as e:
errors.append({
"error_message": f"Error parsing hotspot data - {str(e)}",
"payload": payload
})
continue
#print(to_sns)
post(to_sns)
return errors, warnings
#place holder
def lambda_handler(event, context): def lambda_handler(event, context):
print(json.dumps(event)) try:
errors, warnings = upload(event, context)
except zlib.error:
return {"statusCode": 400, "body": "Could not decompress"}
except json.decoder.JSONDecodeError:
return {"statusCode": 400, "body": "Not valid json"}
error_message = {
"message": "some or all payloads could not be processed or have warnings",
"errors": errors,
"warnings": warnings
}
if errors or warnings:
output = {
"statusCode": 202,
"body": json.dumps(error_message),
"headers": {
"content-type": "application/json"
}
}
print({
"statusCode": 202,
"body": error_message,
"headers": {
"content-type": "application/json"
}
})
return output
else:
return {"statusCode": 200, "body": "^v^ telm logged"}

65
lambda/helium/__main__.py Normal file
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from . import *
import json
import base64
import gzip
import uuid
from io import BytesIO
import sys
filename = "./helium/test_data.json"
_f = open(filename, 'r')
_json = json.loads(_f.read())
body = _json
compressed = BytesIO()
with gzip.GzipFile(fileobj=compressed, mode='w') as f:
f.write(json.dumps(body).encode('utf-8'))
compressed.seek(0)
bbody = base64.b64encode(compressed.read()).decode("utf-8")
payload = {
"version": "2.0",
"routeKey": "POST /helium",
"rawPath": "/helium",
"rawQueryString": "",
"headers": {
"accept": "*/*",
"accept-encoding": "gzip, deflate",
"content-encoding": "gzip",
"content-length": "2135",
"content-type": "application/json",
"host": "api.v2.sondehub.org",
"user-agent": "autorx-1.4.1-beta4",
"x-amzn-trace-id": "Root=1-6015f571-6aef2e73165042d53fcc317a",
"x-forwarded-for": "103.107.130.22",
"x-forwarded-port": "443",
"x-forwarded-proto": "https",
"date": "Sun, 31 Jan 2021 00:21:45 GMT",
},
"requestContext": {
"accountId": "143841941773",
"apiId": "r03szwwq41",
"domainName": "api.v2.sondehub.org",
"domainPrefix": "api",
"http": {
"method": "POST",
"path": "/helium",
"protocol": "HTTP/1.1",
"sourceIp": "103.107.130.22",
"userAgent": "everybody-needs-to-get-a-blimp",
},
"requestId": "Z_NJvh0RoAMEJaw=",
"routeKey": "PUT /sondes/telemetry",
"stage": "$default",
"time": "31/Jan/2021:00:10:25 +0000",
"timeEpoch": 1612051825409,
},
"body": bbody,
"isBase64Encoded": True,
}
print(lambda_handler(payload, {}))

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{
"app_eui": "6081F9D18EBE47A6",
"decoded": {
"payload": {
"accuracy": 2.5,
"altitude": 87,
"battery": 4.08,
"latitude": -34.86380010031462,
"longitude": 138.63449803796397,
"sats": 17,
"speed": 0
},
"status": "success"
},
"dev_eui": "6081F936179F6236",
"devaddr": "C4000048",
"fcnt": 5,
"hotspots": [
{
"channel": 7,
"frequency": 918.2,
"hold_time": 0,
"id": "11ZLMhbdUGEnjKfz4NbZQDu6yRZume6i4rd1xHQZrATYNJ4A382",
"lat": -34.86238643402376,
"long": 138.6337803107603,
"name": "tall-crimson-cougar",
"reported_at": 1692863544622,
"rssi": -106.0,
"snr": 8.5,
"spreading": "SF9BW125",
"status": "success"
},
{
"channel": 7,
"frequency": 918.2,
"hold_time": 0,
"id": "11Dw4nfrktdR7ZpVsmiV491a41fPbUBZUY2byRn4YyP5wjEEHKR",
"lat": -34.8625638088662,
"long": 138.63461613735896,
"name": "delightful-vermilion-locust",
"reported_at": 1692863544625,
"rssi": -105.0,
"snr": 6.0,
"spreading": "SF9BW125",
"status": "success"
},
{
"channel": 7,
"frequency": 918.2,
"hold_time": 0,
"id": "112fnhggsq1zuKoPzBQrx6ChZz9ZfHVhWKpwSSjuGbpYBBUZMe5X",
"lat": -34.863049545718404,
"long": 138.6246860443024,
"name": "long-nylon-snail",
"reported_at": 1692863544759,
"rssi": -116.0,
"snr": -3.5,
"spreading": "SF9BW125",
"status": "success"
},
{
"channel": 7,
"frequency": 918.2,
"hold_time": 0,
"id": "11zHDsZaBKGZY9gDSqesLSMq5SDb9AnRm3kfgaJNZD4yc7cd5ev",
"lat": -34.83846034981166,
"long": 138.72593370209742,
"name": "bitter-infrared-cottonmouth",
"reported_at": 1692863544759,
"rssi": -124.0,
"snr": -12.199999809265137,
"spreading": "SF9BW125",
"status": "success"
},
{
"channel": 7,
"frequency": 918.2,
"hold_time": 0,
"id": "11fbAkWdaX8gugFCqW5PiiWBbh5xgeJRZm5kiohbabs1hAQYR5n",
"lat": -34.92916696507037,
"long": 138.67657464635212,
"name": "lone-tangelo-rook",
"reported_at": 1692863544759,
"rssi": -130.0,
"snr": -12.0,
"spreading": "SF9BW125",
"status": "success"
},
{
"channel": 7,
"frequency": 918.2,
"hold_time": 0,
"id": "112pcZDGWgtzEVfLYAT5SCXKssGcuNenza7J3bAqbs23Tm3qszSt",
"lat": -34.92555952825897,
"long": 138.61067667012273,
"name": "exotic-honey-moose",
"reported_at": 1692863544763,
"rssi": -131.0,
"snr": -14.199999809265137,
"spreading": "SF9BW125",
"status": "success"
},
{
"channel": 7,
"frequency": 918.2,
"hold_time": 0,
"id": "112p6dymRpfjC5APJGTsgYBQgc4wRTq9udarrdDbkD94VaG3wxpT",
"lat": -34.86347548370978,
"long": 138.62211153540594,
"name": "savory-jetblack-griffin",
"reported_at": 1692863544763,
"rssi": -119.0,
"snr": -2.5,
"spreading": "SF9BW125",
"status": "success"
},
{
"channel": 7,
"frequency": 918.2,
"hold_time": 0,
"id": "11WKJZ7QDhiXP5R4HMckmZ4iUkfbKQRuoeSFHNkejTKgM8soGEv",
"lat": -34.86997577863362,
"long": 138.63593499123186,
"name": "sour-opal-hamster",
"reported_at": 1692863544763,
"rssi": -80.0,
"snr": 11.199999809265137,
"spreading": "SF9BW125",
"status": "success"
}
],
"id": "3f2dc194-e7a2-4db6-a964-b4e8dd775258",
"metadata": {
"adr_allowed": false,
"cf_list_enabled": false,
"multi_buy": 9999,
"organization_id": "9814b595-88c9-4985-a42f-3ab2271565bb",
"preferred_hotspots": [],
"rx_delay": 1,
"rx_delay_actual": 1,
"rx_delay_state": "rx_delay_established"
},
"name": "VK5ALG_CubeCell_Mapper_01",
"payload": "Tmp64pWjAFcA0BE=",
"payload_size": 11,
"port": 2,
"raw_packet": "QMQAAEgABQAC1UItFfr2XKni69IDqlhw",
"replay": false,
"reported_at": 1692863544622,
"type": "uplink",
"uuid": "030745c7-0348-4046-b4ce-b545344428d4"
}