map $http_upgrade $connection_upgrade {
    default upgrade;
    '' close;
}

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

    if ($scheme = "http") {
        return 301 https://$host$request_uri;
    }
    if ($http_x_forwarded_proto = "http") {
        return 301 https://$host$request_uri;
    }

    listen 443 ssl http2;
    proxy_buffering off;
    proxy_request_buffering off;

    client_max_body_size 0;
    client_body_buffer_size 512k;
    proxy_read_timeout 86400s;

    server_name nextcloud.aldon.fr;
    
    ssl_certificate /etc/letsencrypt/live/aldon.fr/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/aldon.fr/privkey.pem;

    ssl_dhparam "/etc/dhparam";

    ssl_early_data on;
    ssl_session_cache shared:SSL:10m;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ecdh_curve x25519:x448:secp521r1:secp256r1;

    ssl_prefer_server_ciphers on;
    ssl_conf_command Options PrioritizeChaCha;
    ssl_ciphers TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:ECDHE-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305-ECDHE-ECSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-CHACHA20-POLY1305:RCDHE-RSA-AES128-GCM-SHA256;

    location / {
        proxy_pass http://192.168.1.30:11000$request_uri;

        proxy_set_header    Host            $host;
        proxy_set_header    X-REAL-IP       $remote_addr;
        proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header    X-Forwarded-Port $server_port;
        proxy_set_header    X-Forwarded-Scheme $scheme;
        proxy_set_header    X-Forwarded-Proto $scheme;
        proxy_set_header    Early-Data $ssl_early_data;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        
        # Error pages
        error_page 502 /502.html;
        location /502.html {
                root /var/www/html;
        }
    }

}