.gitignore

*.certSigningRequest
*.p12
*.cer
*.pem

apns.py

import socket
import ssl
import json
import struct
import binascii


def apns_push(device_token, payload):
    """ Pushes a python dictionary payload to the device identified with device_token. """

    # Certificate issued by apple and converted to .pem format with openSSL
    certfile = 'reachd_dev_apns.pem'
    host = ('gateway.push.apple.com', 2195 )

    # Translate payload to JSON.
    payload_json = json.dumps(payload)

    # Clear out spaces in the device token and convert to hex
    device_token = device_token.replace(' ','')
    device_token_bytes = binascii.unhexlify(device_token)

    #print("HELLOS")
    #print(byteToken)

    notification_format = '!BH32sH%ds' % len(payload_json)
    notification = struct.pack( notification_format, 0, 32, device_token_bytes, len(payload_json), payload_json)

    #Just writing to a file for hex inspection
    f = open('the_notification', 'w')
    f.write(notification)
    f.close()

    # Create our connection using the certfile saved locally.
    ssl_sock = ssl.wrap_socket( socket.socket( socket.AF_INET, socket.SOCK_STREAM ), certfile=certfile)
    ssl_sock.connect(host)

    # Write out our data
    ssl_sock.write(notification)

    # Close connection upon completion.
    ssl_sock.close()

if __name__ == '__main__':

    device_token = '096c31c2 adc3dd5b 91675a55 6e2260c3 07e53094 7f0c16c8 59b373a6 7d72a509'

    payload = {
         'aps': {
              'alert':'Oh no! Server\'s Down!',
              'sound':'k1DiveAlarm.caf',
              'badge':42,
              },
         'test_data': { 'foo': 'bar' },
         }

    apns_push(device_token, "hello")