Merge remote-tracking branch 'datapuller/main'

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Aadi Desai 2022-03-07 23:29:01 +00:00
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# Byte-compiled / optimized / DLL files
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# misc
OpenHaystack.app/
extract.txt

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# ELEC60013 Embedded Systems: Coursework 1
Data Fetching script that pulls data from cloud source and forwards it to our custom backend for processing and display to the user, in the app.
Possible cloud sources include:
- Airtags Database
- MQTT Broker

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import requests, json, subprocess, re
import paho.mqtt.client as mqtt
def OpenHayStackLocation():
# TODO: replace with OpenHaystack script
return 0, 0
def on_connect(client, userdata, flags, rc):
print("Connected with result code "+str(rc))
client.subscribe("/data")
def on_message(client, userdata, msg):
if msg.topic == "/data":
loc_lat, loc_lon = None, None
try:
subprocess.run("./OpenHaystack.app/Contents/MacOS/OpenHaystack > extract.txt", capture_outout=True, shell=True, timeout=5)
except Exception as e:
pass
with open("extract.txt", "r") as output:
lines = output.readlines()
for line in reversed(lines):
if "FindMyLocationReport" in line:
loc_lat = re.findall("latitude: (-?[0-9]*\.[0-9]*)", line)[0]
loc_lon = re.findall("longitude: (-?[0-9]*\.[0-9]*)", line)[0]
break
subprocess.run("pkill OpenHaystack", shell=True)
data = json.loads(msg.payload)
firebase_url = "https://leg-barkr.nw.r.appspot.com/readings/save"
firebase_headers = {
"Content-Type": "application/json",
"Device-ID": data["devID"]
}
firebase_data = {
"air_temp": data["air_temp"],
"cumulative_steps_today": data["day_steps"],
"humidity": data["hum_perc"],
"latitude": float(loc_lat),
"longitude": float(loc_lon),
"skin_temp": data['pet_temp']
}
r = requests.post(url = firebase_url, json = firebase_data, params = None, headers = firebase_headers) # add any other necessary values in request
print(r.status_code, r.reason, r.text)
client = mqtt.Client("DataPuller")
client.on_connect = on_connect
client.on_message = on_message
client.connect("add8.duckdns.org", 8883, 60)
client.loop_forever()

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certifi==2021.10.8
charset-normalizer==2.0.12
idna==3.3
paho-mqtt==1.6.1
requests==2.27.1
urllib3==1.26.8