NGINX configuration allowing user to create their own personal space under a subdomain with partial DAV support (here under .kiwibox.local)

user-personnal-space.conf

server {
	listen 80;
	listen [::]:80;

	server_name ~^(?<user>.+)\.kiwibox\.local$;

	root /home/$user/$user.kiwibox.local;
	try_files $uri $uri/ =404;
	
	client_body_temp_path /tmp/nginx-dav-tmp;
	dav_methods PUT DELETE MKCOL COPY MOVE;

    	create_full_put_path  on;
    	dav_access            group:rw  all:r;

	index index.html index.htm;

	set $forbidden 1;

	location ~ /\. {
		auth_pam "Espace privé";
		auth_pam_service_name "nginx";
	}

	location / {
		limit_except GET POST {
			auth_pam "Opération restreinte";
			auth_pam_service_name "nginx";
		}
	}


	if ( $remote_user = "" ){
		set $forbidden 0;
	}

	if ( $remote_user = $user ){
		set $forbidden 0;
	}

	if ( $forbidden ){
		return 403;
	}

	location @404 {
		try_files 404.html =404;
	}
}