The Microphone Remote Volume Control Server

Check out the website at: https://mic.vprobst.de

About

Goal of this project was to enable remote controlling the microphone of the target computer (running the csharp-App).

In a setting where the whole room shares one Room-Microphone in a Teams-Setting everyone could remote Mute-Toggle the microphone. Enabling a shared Microphone for convenient use, while keeping background noise low.

This server:

• authentificates Users connecting via the csharp-App, keeps WebSocket connections to those open and removes inactive ones.
• hosts the website, listens for requests to send Volume-Up/Down/Toggle requests from the website.
• If the requests form website match the username and password for the open connection of a App-User it sends corresponding Volume Control signal over to the App.

Optinal Flags

• to change the port listening on: --port 8080
• to specify the path to the /public folder with the index.html and ressources --files ./src/public

Working on the project

git clone https://github.com/vincepr/go_micmute_server.git
cd ./go_micromute_server/src
go run . --port 5555 --files ./public

• then you can visit: ``

Building and running the Docker image

Docker image containts only the Linux(64bit)-binary and the ressources for the website. Arround 7-8MB in size

• git clone https://github.com/vincepr/go_micmute_server.git
• cd go_micmute_server
• sudo docker build -t go_micmute_server .
• sudo docker run -it --rm -p 3003:3003 go_micmute_server

now we can access it in localhost:3003

If we would want to expose it directly, we could do so with--network="host" . Or we use something like nginx (see below)

• sudo docker run -it --rm --network="host" -p 3003:3003 go_micmute_server

Deploy the docker image with autostart

If we want it to autostart after rebooting we can add the -d --restart unless-stopped flag:

• sudo docker run -it -d --restart unless-stopped -p 3003:3003 go_micmute_server

If we want to shut that container down again we:

• Find ID for the go_micmute_server sudo docker container ls
• and shut it down using that Container-ID sudo docker stop CONTAINERID

Https via nginx & certbot:

Quickest way to add https with minimal effort. Use nginx redirect that upgrades connection with a certificate.

• sudo nano /etc/nginx/sites-available/mic.vprobst.de.conf

server {
	  listen 80;
        listen [::]:80;
        server_name mic.vprobst.de;

        location / {            
                proxy_pass http://localhost:3003/;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection upgrade;
                proxy_set_header Accept-Encoding gzip;  
        }       
}

• then test and activate those settings

sudo ln -s /etc/nginx/sites-available/mic.vprobst.de.conf /etc/nginx/sites-enabled/mic.vprobst.de.conf
sudo nginx -t
systemctl status nginx sudo systemctl restart nginx

• afterwards run certbot