feedback.py

#!/usr/bin/env python

import struct
from binascii import a2b_hex, b2a_hex
import socket
import ssl
import time
import sys

fmt = '!IH32s'

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('feedback.push.apple.com', 2196))
ssl = ssl.wrap_socket(s, 'push.key', 'push.cert', ssl_version=3, cert_reqs=ssl.CERT_NONE)

data = ssl.read(struct.calcsize(fmt))

if not data:
  print 'no data'
  sys.exit(0)

while data:
  timestamp, length, token = struct.unpack(fmt, data)
  print 'got token: %s' % b2a_hex(token)
  data = ssl.read(struct.calcsize(fmt))

p12_to_pem.sh

#!/bin/bash

[ -n "$1" ] || { echo "Usage: $0 [p12]"; exit 1; }

openssl pkcs12 -in "$1" -nodes  -nocerts -password "pass:" -out push.key
openssl pkcs12 -in "$1" -nodes  -nokeys -password "pass:" -out push.cert

push.py

#!/usr/bin/env python

import struct
from binascii import a2b_hex
import socket
import ssl
import time

payload = '{"aps":{"alert":"Broadcasting direct to apple with p12"}}'

tokens = [
  a2b_hex('SOMETOKEN'),
]

fmt = '!BH32sH%ds' % len(payload)

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('gateway.push.apple.com', 2195))
ssl = ssl.wrap_socket(s, 'push.key', 'push.cert', ssl_version=3, cert_reqs=ssl.CERT_NONE)
#ssl = socket.ssl(s)
for token in tokens:
  packet = struct.pack(fmt, 0, 32, token, len(payload), payload)
  count = ssl.write(packet)
  print 'write %d bytes' % count