whocasa

Send notifications who leaves or enters home by cellphones, laptops etc.

Posible better ways or improvements.

1: Someone has found a better way to detect iphones but my coding skills suck to translate this C# code to python. HERE

2: Thought on doing also some tcpdump to check if a device is sending stuff like discovery services etc. So it aways listens.

3: Might be better if we had control over the router/modem, DD-WRT, relay all traffic to the host idk.

4: Use nmap api.

5: WIFI dongle usb monitor mode.

6: The volume of the pushetta notification is loud as fuck lol.

Setup

REQUIREMENTS:nmap, sudo, python3, see install file.

1. Register in http://www.pushetta.com.

2. Create a channel in pushetta and grab your api key from the dashboard.

3. Paste the api key and channel name in the configuser.py file, also paste your ip range.

4. Do sudo pip3 install pushetta.

5. Install pusheta in your phone.

6. Subscribe to your channel in the app.

7. Use nmap or Fing (android app) to determine the MAC adresses of the devices you wanna keep track.

8. Add those MAC adresses to idsuser.csv file with the format MACADDRESS,NAMEDEVICE it already has some example mac addresses.

9. Script must run as root, or sudo.(i think nmap requires this for mac addresses).

10. To start at boot add this line python3 /home/pi/ph/ph.py & to /etc/rc.local in the line before exit 0, depending on you distribution.

How it Works

Takes idsuser.csv creates a list of of booleans wherever a device is detected.

pseudocode

12:23:DE,[True ,False,True ]
23:EF:43,[False,False,False]

Then it creates another list, this list contains bools if the device has been seen at least once during the cycle.

12:23:DE,[True ,False,True ,.....] -> 12:23:DE,True
23:EF:43,[False,False,False,.....] -> 23:EF:43,False

Then it begins another cycle. For another 10~ itinerations, and appends another boolead True if the device has been seen at least once.

12:23:DE,[False,False,True,....] -> 12:23:DE,True
23:EF:43,[True ,True ,True,....] -> 23:EF:43,True

Then it compares the resulting lists from the last two cycles looking for change so.

False then False : device is not present dont send notification
True  then True  : device is present dont send notification
False then True  : device was not present, then is present so send notification is has arrived
True  then False : devces was present, then is not present so send notification is has left

Then it repeats using the last cycle as starting point.