# nginx site for bifrost-portal.fenja.ai
# Reverse-proxies to the Bifrost portal Node server on 127.0.0.1:4322.
# Coexists with other Fenja sites on this box — it only claims this hostname.
#
# Install:
#   sudo cp deploy/nginx/bifrost-portal.fenja.ai.conf /etc/nginx/sites-available/
#   sudo ln -s /etc/nginx/sites-available/bifrost-portal.fenja.ai.conf /etc/nginx/sites-enabled/
#   sudo nginx -t && sudo systemctl reload nginx
#
# TLS: obtain the cert first (see DEPLOY.md). Either run
#   sudo certbot --nginx -d bifrost-portal.fenja.ai
# (certbot edits this file in place), OR issue with --webroot and keep the
# 443 block below as-is. The :80 block must exist before certbot runs.

# HTTP — ACME challenge + redirect everything else to HTTPS.
server {
    listen 80;
    listen [::]:80;
    server_name bifrost-portal.fenja.ai;

    location /.well-known/acme-challenge/ {
        root /var/www/html;
    }

    location / {
        return 301 https://$host$request_uri;
    }
}

# HTTPS — terminates TLS, proxies to the Node app.
server {
    listen 443 ssl;
    listen [::]:443 ssl;
    http2 on;
    server_name bifrost-portal.fenja.ai;

    ssl_certificate     /etc/letsencrypt/live/bifrost-portal.fenja.ai/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/bifrost-portal.fenja.ai/privkey.pem;
    # Modern TLS defaults (Mozilla "intermediate"). If certbot manages this
    # file it may append its own ssl_* includes — harmless duplicates aside.
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers off;

    # Event photo uploads can be a few MB; keep headroom above the app's limit.
    client_max_body_size 12m;

    # Security headers. HSTS only after you've confirmed HTTPS works end-to-end.
    add_header X-Content-Type-Options nosniff always;
    add_header X-Frame-Options SAMEORIGIN always;
    add_header Referrer-Policy strict-origin-when-cross-origin always;
    # add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;

    location / {
        proxy_pass http://127.0.0.1:4322;
        proxy_http_version 1.1;
        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-Proto $scheme;
        proxy_set_header X-Forwarded-Host  $host;
        # Upgrade headers in case any route uses them; harmless otherwise.
        proxy_set_header Upgrade    $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_read_timeout 60s;
    }
}