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#!/usr/bin/env python |
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|
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from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer |
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import SocketServer |
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from urlparse import parse_qs |
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import os |
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import cgi |
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import time |
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import requests |
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import subprocess |
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import config |
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import threading |
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|
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g_subscribed = [] |
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|
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class S(BaseHTTPRequestHandler): |
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def _output(self, code, content): |
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self.send_response(code) |
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self.send_header('Content-type', 'text/html') |
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self.end_headers() |
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self.wfile.write(content) |
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|
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def do_GET(self): |
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try: |
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action = parse_qs(self.path[2:]).get("action")[0] |
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except: |
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action = None |
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|
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output = '''<!DOCTYPE html> |
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<html lang="en"> |
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|
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<head> |
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<meta charset="UTF-8"> |
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<title>Motion camera</title> |
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</head> |
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|
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<body onload="onload()"> |
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|
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<script> |
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|
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function sleep (time) { |
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return new Promise((resolve) => setTimeout(resolve, time)); |
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} |
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|
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function _toggle_alarm(st) { |
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document.getElementById("pleasewait").innerHTML = ' <i>Please wait...</i>'; |
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var xhr = new XMLHttpRequest(); |
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xhr.onreadystatechange = function () { |
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var DONE = 4; // readyState 4 means the request is done. |
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var OK = 200; // status 200 is a successful return. |
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if (xhr.readyState === DONE) { |
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if (xhr.status === OK) { |
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sleep(5000).then(() => { |
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document.location.reload(); |
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}); |
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} else { |
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alert('Error: ' + xhr.status); // An error occurred during the request. |
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} |
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} |
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}; |
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|
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var data = new FormData(); |
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data.append('action', st ? 'motion_on'/*1.3.6.1.4.1.37476.2.4.1.100*/ : 'motion_off'/*1.3.6.1.4.1.37476.2.4.1.101*/); |
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xhr.open('POST', document.location, true); |
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xhr.send(data); |
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} |
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|
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function onload() { |
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if (document.getElementById('campic') != null) { |
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document.getElementById('campic').src = 'http://' + window.location.hostname + ':'''+str(config.motion_stream_port)+'''/'; |
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} |
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} |
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|
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</script>''' |
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|
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if ismotionrunning(): |
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output = output + '<h2>Motion detection ON</h2>' |
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output = output + '<p><a href="javascript:_toggle_alarm(0)">Disable motion detection</a><span id="pleasewait"></span></p>' |
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output = output + '<p>Showing camera stream from port {0}. If you don\'t see a picture, please check your configuration or firewall.</p>'.format(config.motion_stream_port) |
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output = output + '<p><img id="campic" src="" alt=""></p>'; |
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else: |
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output = output + '<h2>Motion detection OFF</h2>' |
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output = output + '<p><a href="javascript:_toggle_alarm(1)">Enable motion detection</a><span id="pleasewait"></span></p>' |
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|
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output = output + '<h2>Subscribers</h2>' |
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|
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found_subs = 0 |
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for subscriber in g_subscribed[:]: |
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if int(time.time()) > subscriber[2]: |
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g_subscribed.remove(subscriber) |
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else: |
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found_subs = found_subs + 1 |
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output = output + "<p>{0}:{1}</p>".format(subscriber[0], subscriber[1]) |
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|
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if found_subs == 0: |
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output = output + '<p>None</p>' |
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|
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output = output + '</body>' |
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output = output + '</html>' |
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|
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self._output(200, output) |
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|
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def do_HEAD(self): |
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self._output(200, '') |
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|
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def thr_client_notify(self, client_ip, client_port, server_targets): |
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print "ALERT: Will alert client http://{0}:{1} and tell that targets {2} sent an alert".format(client_ip, client_port, server_targets) |
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d = {"action": "client_alert", # 1.3.6.1.4.1.37476.2.4.1.3 |
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"targets": server_targets, |
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"motion_port": config.motion_stream_port, |
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"simulation": "0"} |
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requests.post("http://{0}:{1}".format(client_ip, client_port), data=d) |
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|
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def do_POST(self): |
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# https://stackoverflow.com/questions/4233218/python-how-do-i-get-key-value-pairs-from-the-basehttprequesthandler-http-post-h |
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# Question: Do we need the cgi package, or can we use functions available in this class (e.g. self_parse_qs?) |
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ctype, pdict = cgi.parse_header(self.headers.getheader('content-type')) |
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if ctype == 'multipart/form-data': |
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postvars = cgi.parse_multipart(self.rfile, pdict) |
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elif ctype == 'application/x-www-form-urlencoded': |
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length = int(self.headers.getheader('content-length')) |
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postvars = cgi.parse_qs(self.rfile.read(length), keep_blank_values=1) |
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else: |
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postvars = {} |
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|
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# --- |
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|
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global g_subscribed |
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|
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if pvget(postvars, "action")[0] == "client_subscribe": # 1.3.6.1.4.1.37476.2.4.1.1 |
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client_ip = self.client_address[0] |
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client_port = pvget(postvars, "port")[0] |
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client_ttl = pvget(postvars, "ttl")[0] |
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client_targets = pvget(postvars, "targets") |
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|
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client_expires = int(time.time()) + int(client_ttl) |
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|
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print "Client subscribed: {0}:{1}, searching for targets {2}".format(client_ip, client_port, client_targets) |
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|
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# Remove all expired entries, and previous entries of that client |
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for subscriber in g_subscribed[:]: |
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if int(time.time()) > subscriber[2]: |
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g_subscribed.remove(subscriber) |
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elif (subscriber[0] == client_ip) and (subscriber[1] == client_port) and (subscriber[3] == client_targets): |
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g_subscribed.remove(subscriber) |
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|
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# Now add our new client |
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g_subscribed.append([client_ip, client_port, client_expires, client_targets]) |
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|
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# Send parameters of the device(s) |
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d = {"action": "client_alert", # 1.3.6.1.4.1.37476.2.4.1.3 |
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"targets": ['1.3.6.1.4.1.37476.2.4.2.0', '1.3.6.1.4.1.37476.2.4.2.1002'], |
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"motion_port": config.motion_stream_port, |
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"simulation": "1"} |
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requests.post("http://{0}:{1}".format(client_ip, client_port), data=d) |
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|
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if pvget(postvars, "action")[0] == "server_alert": # 1.3.6.1.4.1.37476.2.4.1.2 |
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server_targets = pvget(postvars, "targets") |
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|
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found_g = 0 |
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|
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for subscriber in g_subscribed[:]: |
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client_ip = subscriber[0] |
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client_port = subscriber[1] |
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client_expires = subscriber[2] |
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client_targets = subscriber[3] |
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|
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if int(time.time()) > client_expires: |
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g_subscribed.remove(subscriber) |
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else: |
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found_c = 0 |
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for st in server_targets: |
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for ct in client_targets: |
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if ct == st: |
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found_c = found_c + 1 |
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found_g = found_g + 1 |
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if found_c > 0: |
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# Notify clients via threads, so that all clients are equally fast notified |
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thread = threading.Thread(target=self.thr_client_notify, args=(client_ip, client_port, server_targets, )) |
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thread.start() |
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|
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if found_g == 0: |
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print "ALERT {0}, but nobody is listening!".format(server_targets) |
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|
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if pvget(postvars, "action")[0] == "motion_on": # 1.3.6.1.4.1.37476.2.4.1.100 |
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print "Motion start" |
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os.system(os.path.dirname(os.path.abspath(__file__)) + "/motion/motion_start_safe") |
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|
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if pvget(postvars, "action")[0] == "motion_off": # 1.3.6.1.4.1.37476.2.4.1.101 |
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print "Motion stop" |
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os.system(os.path.dirname(os.path.abspath(__file__)) + "/motion/motion_stop_safe") |
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|
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self._output(200, '') |
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|
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def pvget(ary, key): |
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if ary.get(key) == None: |
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return [""] |
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else: |
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return ary.get(key) |
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|
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def run(server_class=HTTPServer, handler_class=S, port=8085): |
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print 'Starting server, listening to port {0}...'.format(port) |
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server_address = ('', port) |
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httpd = server_class(server_address, handler_class) |
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httpd.serve_forever() |
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|
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def ismotionrunning(): |
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p = subprocess.Popen(["ps", "aux"], stdout=subprocess.PIPE) |
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out, err = p.communicate() |
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try: |
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return ('/usr/bin/motion' in str(out)) |
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except: |
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res = os.system("pidof -x /usr/bin/motion > /dev/null") |
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return (res >> 8) == 0 |
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|
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if __name__ == "__main__": |
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from sys import argv |
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|
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if len(argv) == 2: |
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run(port=int(argv[1])) |
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else: |
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run() |
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|
