chat/nginx-example.conf

# nginx-example.conf — Example Nginx virtual host for CyberChat

server {
    listen 80;
    server_name chat.yourdomain.com;
    # Redirect HTTP to HTTPS
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    server_name chat.yourdomain.com;

    # SSL — update paths to your certs
    ssl_certificate     /etc/letsencrypt/live/chat.yourdomain.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/chat.yourdomain.com/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;

    root /var/www/html/cyberchat;
    index index.html index.php;
    client_max_body_size 16m;

    # Serve static files directly
    location ~* \.(css|js|ico|png|jpg|woff2?)$ {
        expires 7d;
        add_header Cache-Control "public, immutable";
    }

    # Never execute files from the voice upload directory
    location ~ ^/uploads/voice/.*\.(php|phtml|phar|cgi|pl|py|sh)$ {
        deny all;
        return 404;
    }

    # PHP files
    location ~ \.php$ {
        fastcgi_pass unix:/run/php/php8.1-fpm.sock; # adjust PHP version
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }

    # Block direct access to storage and internal libraries
    location ~ ^/(db|archive|lib)/ {
        deny all;
        return 404;
    }

    # Block credentials and SQLite sidecar files
    location = /config.json {
        deny all;
        return 404;
    }

    location ~* \.sqlite($|-wal$|-shm$) {
        deny all;
        return 404;
    }

    # Block dotfiles such as .htaccess and .gitignore
    location ~ /\. {
        deny all;
        return 404;
    }

    # Default
    location / {
        try_files $uri $uri/ =404;
    }
}