Expose IP Camera Workaround

expose.py

# This code is highly experimental, it works for me, but use at your own risk!

import subprocess

import requests

MAILER_URL = ''
LT_PATH = '/home/nihey/.nvm/versions/node/v4.2.3/bin/lt'
BASE_IP = '192.168.99.{}'

base_url = 'http://{}/video.cgi'.format(BASE_IP)

def scan():
    for address in xrange(255, 0, -1):
        # Trying desperately to find a DCS-* Camera in the network
        url = base_url.format(address)
        print 'Trying', url
        try:
            response = requests.get(url, timeout=0.1)
        except (requests.exceptions.Timeout, requests.exceptions.ConnectionError):
            print 'Timed out, proceeding'
            continue

        # Just by getting the 401 response in the '/video.cgi' we assume we are
        # dealing with a DCS-* Camera So we should localtunnel it
        if response.status_code == 401:
            # Never stop localtunneling it again
            while True:
                print 'Camera Found, running localtunnel...'
                popen = subprocess.Popen([LT_PATH, '-l', BASE_IP.format(address),
                                          '-p', '80'], stdout=subprocess.PIPE)
                while True:
                    line = popen.stdout.readline()
                    print line
                    if line == '':
                        break
                    if 'your url is: ' in line:
                        url = line.replace('your url is: ', '').rstrip('\n')
                        response = requests.get(MAILER_URL, params={
                            'url': url + '/video.cgi',
                            'ip': BASE_IP.format(address),
                        })
                        print response.text
                        break
                popen.wait()

    # Neve stop looking for a camera, believe in it
    scan()
scan()

mail.gs

function doGet(e) {
  var emails = 'nihey.takizawa@gmail.com'.split(',');
  var subject = 'Camera URL Changed';
  var body = 'Camera URL: ' + e.parameter.url + '\n' +
             'Located on IP: ' + e.parameter.ip;
  
  emails.forEach(function(email) {
    try {
      GmailApp.sendEmail(email, subject, body);
    } catch(e) {}
  });
  
  return ContentService.createTextOutput("OK");
}

supervisor.conf

[program:camera-exposer]
numprocs=1
command=python /root/expose.py
redirect_stderr=true
stdout_logfile=/var/log/camera-exposer.log
autorestart=true
user=root