How to integrate my old doorbell with HA

1

Hi!
I’ve a question for you. I have a very OLD ‘Made in China’ doorbell which I tried to integrate with my HA. The doorbell is connected via cable to the router. And it’s operated via app from an Android tablet.
I found that it is possible to connect via telnet (I’ve user and pass) and via web (port 80). And there are some links to open the gate and to take a screenshot. Like this:

http://192.123.123.123:81/openlock.cgi?loginuse=admin&loginpas=
http://192.123.123.123:81/snapshot.cgi?loginuse=admin&loginpas=

I have already integrated these functions into HA.
But I can’t view a direct stream of the video and sniff when the doorbell rings.
Can you help me how can I do it?
Thank

2

if you can find a link which exposes rtsp stream (it can’t be webrtc given its age) you can create generic stream?

3

Try doing a portscan to see if port 554 is open, thats usually the rtsp port for streaming

4

I found more doc on internet for stream with my model of camera (RT288x_SDK).
With url like this:

rtsp://admin:[email protected]:554/onvif2

rstp://192.123.123.123:10554/

It does not work. I try with VLC media player, does not work. I try whith HA, does not work…

I try to open this URL with browser:

http://192.123.123.123.:81/mjpeg.cgi?loginuse=admin&loginpas=&1642886096194&_=1642886096194

It result ’ STATUS OK 200’ but nothing else…

5

Hi, this is the results with Nmap scan:

PORT STATE SERVICE VERSION

23/tcp open telnet BusyBox telnetd

81/tcp open http GoAhead WebServer

|_http-title: Document Error: Unauthorized

| http-auth:

| HTTP/1.1 401 Unauthorized\x0D

|_ Digest nonce=c545dccae5a87a1ba1f3c16828e463e8 realm=GoAhead stale=FALSE algorithm=MD5 qop=auth opaque=5ccc069c403ebaf9f0171e9517f40e41 domain=:81

| http-methods:

|_ Supported Methods: GET HEAD

8600/tcp open tcpwrapped

I connect my pc to router with wire connection, I open Wireshark and i start the scan and I play the doorbell, with the app. But nothing result in Wireshark. The app on the Android tablet work well, I ring the bell and the app activates but on Wiresharks results nothing…

Boh I’m the worst hacker on history. :slight_smile:

6

i believe, this rtsp endpoint needs to be waken up by some other call or physical switch to start streaming

7

But why does it work from the app?
Also from other apps, from different developers. Do they use the same standard?

8

app might be calling this endpoint first to wake up the device to start streaming.

i am the custom developer of eufy cameras and it works in similar fashion, RTSP stream starts after;

  • physical motion event of the camera
  • software signal via the app
9

It is possibile to sniff this signal of ‘wake up’?