Simple script to watch for and react to Amazon Dash button pushes.

dash-react.py

#!/usr/bin/python

# based on https://medium.com/@edwardbenson/how-i-hacked-amazon-s-5-wifi-button-to-track-baby-data-794214b0bdd8
#
# This is a quick hack.  As such, it:
#   * lacks exception handling
#   * has no pretense of object orientation
#   * needs root privs (for network monitoring) but doesn't do anything 
#           to make that safe (e.g. drop privs, etc.)
#   * gets configured manually (see below)
 
from scapy.all import *
import urllib2, urllib
import time

############################################ start config
ifttt_key = "PUT_YOUR_KEY_HERE" 
cloudstitch_username = "YOUR_USERNAME_HERE"
 
# Maps known MAC addrs of dash buttons to text descriptors
#   NB: these descriptors are the logical key used for subsequent config
mac_addrs = {}
mac_addrs['DE:AD:BE:EF:4D:AD'] = "orange"  # <<----- put your mac addr[s] here
mac_addrs['DE:AD:BE:EF:4D:AD'] = "white"

# Associates each button with up to one action type.
#   Currently supported actions are IFTTT and MagicForm
actions = {}
actions['orange'] = "ifttt"
actions['white'] = "magicform" 

# For IFTTT actions, we set which event type is sent
ifttt_actions = {}
ifttt_actions['orange'] = "button_pressed" 

# For MagicForm actions, we set which sheet to update on button press
magicform_actions = {}
magicform_actions['white'] = 'magic-form-1'

############################################ end config

def do_print(button):
  print "%s button pressed" % button

def call_ifttt(button):
  if button in ifttt_actions:
    url = "https://maker.ifttt.com/trigger/%s/with/key/%s" % (ifttt_actions[button], ifttt_key)
    urllib2.urlopen(url)
    #print "sent GET to %s" % url
    do_print(button)

def call_magicform(button):
  data = urllib.urlencode({'button' : button,
                           'time' : time.asctime()})
  url = "http://api.cloudstitch.com/%s/%s/datasources/sheet" % \
      (cloudstitch_username, magicform_actions[button])
  req = urllib2.Request(url, data)
  urllib2.urlopen(req)
  #print "sent POST to %s" % url
  do_print(button)

def monitor_whohas(pkt):
  if not pkt.haslayer(ARP):
    # FIXME how is this getting through the filter passed to scapy?
    return

  if pkt[ARP].op == 1: #who-has (request)
    if pkt[ARP].psrc == '0.0.0.0': # ARP Probe
      if pkt[ARP].hwsrc in mac_addrs:
        b = mac_addrs[pkt[ARP].hwsrc]
        if b in actions:
          if actions[b] == "ifttt":
            call_ifttt(b)
          elif actions[b] == "magicform":
            call_magicform(b)
          elif actions[b] == "print":
            do_print(b)
      else:
        print "ARP Probe from unknown: " + pkt[ARP].hwsrc
  else:
    # (for curiosity)
    # what do we get other than a who-has from 0.0.0.0?
    print "NON WHO-HAS ARP Probe from: " + pkt[ARP].hwsrc

if __name__ == "__main__":
  sniff(prn=monitor_whohas, filter="src host 0.0.0.0 and arp", store=0, count=0)