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PubNubBlink.py
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PubNubBlink.py
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import ConfigParser
from collections import deque
import re
import string
import subprocess
import sys
from threading import Thread
import time
from Pubnub import Pubnub
## Initiate Class
blink_queue = deque(maxlen=5)
config = ConfigParser.ConfigParser()
config.read('PubNubBlink.cfg')
blink_app = config.get('Blink1', 'blink-app')
blink_wait = float(config.get('Blink1', 'blink-wait'))
patterns = config._sections['Patterns']
patterns.pop("__name__")
"""Prevent a window from opening each time you call the blink1-tool"""
subprocess.STARTF_USESHOWWINDOW = 1
startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
pubnub = Pubnub(
config.get('PubNub', 'pub-key'),
config.get('PubNub', 'sub-key'),
None,
False)
print("My UUID is: "+pubnub.uuid)
channel = config.get('PubNub', 'channel')
def receive(data):
message = data['text']
for pattern in patterns:
if re.match(pattern, message):
blink_queue.append(patterns[pattern])
break
return True
def blinker(q):
while True:
try:
args = q.popleft().split()
except IndexError:
##Wait for more work
time.sleep(blink_wait)
else:
subprocess.Popen(
[blink_app] + args,
startupinfo=startupinfo,
stderr=subprocess.PIPE,
stdout=subprocess.PIPE)
##Wait for the blinking to stop
time.sleep(blink_wait)
def subscribe():
print("Listening for messages on '%s' channel..." % channel)
pubnub.subscribe({
'channel' : channel,
'callback' : receive
})
try:
"""Blink to know that the script is starting"""
subprocess.Popen(
[blink_app] + ["-m", "100", "--blink", "3"],
startupinfo=startupinfo,
stderr=subprocess.PIPE,
stdout=subprocess.PIPE)
blink_worker = Thread(target=blinker, args=(blink_queue,))
blink_worker.daemon=True
blink_worker.start()
sub_thread = Thread(target=subscribe)
sub_thread.daemon=True
sub_thread.start()
sub_thread.join()
except Exception, e:
print("Missing blink-tool! Go to http://blink1.mthing.com/")
print(e)