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klingel.py
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klingel.py
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import pyaudio
import wave
import sys
import os
import random
import socket
import struct
import time
import requests
import json
from threading import Timer, Thread
from subprocess import call, Popen
def playsound(fn):
print("play", fn)
Popen(["paplay", fn])
return
CHUNK = 1024
wf = wave.open(fn, 'rb')
p = pyaudio.PyAudio()
stream = p.open(format=p.get_format_from_width(wf.getsampwidth()),
channels=wf.getnchannels(),
rate=wf.getframerate(),
output=True)
# read data
data = wf.readframes(CHUNK)
while len(data) > 0:
stream.write(data)
data = wf.readframes(CHUNK)
stream.stop_stream()
stream.close()
p.terminate()
def receiver(group, port):
addrinfo = socket.getaddrinfo(group, None)[0]
s = socket.socket(addrinfo[0], socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(('', port))
group_bin = socket.inet_pton(addrinfo[0], addrinfo[4][0])
mreq = group_bin + struct.pack('@I', 0)
s.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq)
return s
group = "ff02::6004"
port = 6004
ifname = "eth0"
s = receiver(group, port)
locked_oben = True
locked_unten = True
def reset_locks():
global locked_open, locked_unten
locked_oben = True
locked_unten = True
def genugdavon():
putfile('/sys/class/gpio/gpio11/value', '1')
playsound("/root/wrong.wav")
def check_locks():
try:
r = requests.get('https://padlock.nobreakspace.org/api/locks', cert=('klingel.crt', 'klingel.key'), verify=False)
for x in r.json():
if x['id'] == '261175':
locked_unten = x['locked']
if x['id'] == '334EC1':
locked_oben = x['locked']
print("Locks", locked_unten, locked_oben)
except:
pass
timer = None
def run(data, d=None):
global timer
print(data)
if data == "ring":
if int(d) == 1:
if timer:
timer.cancel()
timer = Timer(60, genugdavon)
timer.start()
check = Thread(target=check_locks)
check.start()
putfile('/sys/class/gpio/gpio11/value', '0')
playsound("/root/ring-bb.wav")
else:
playsound("/root/ring-fis.wav")
if data == "open":
# if not locked_oben:
playsound("/root/open.wav")
if data == "summ":
if timer:
timer.cancel()
# if not locked_oben:
putfile('/sys/class/gpio/gpio11/value', '1')
playsound("/root/summ.wav")
# else:
# playsound("/root/locked.wav")
def putfile(file, data):
f = open(file, 'w')
f.write(data)
f.close()
try:
putfile('/sys/class/gpio/export', '11')
except:
pass
putfile('/sys/class/gpio/gpio11/direction', 'out')
putfile('/sys/class/gpio/gpio11/value', '1')
lastseq = dict()
while True:
data, sender = s.recvfrom(1500)
while data[-1:] == '\0': data = data[:-1] # Strip trailing \0's
data = data.decode('utf-8')
x = data.split(",")
try:
data = x[0]
except:
data = None
try:
seq = x[1]
except:
seq = None
try:
d = x[2]
except:
d = None
try:
l = lastseq[data]
except:
l = 0
if seq != l:
run(data, d)
lastseq[data] = seq