# quiXzoom SSO - Nginx Configuration
# Place this in /etc/nginx/conf.d/quixzoom-sso.conf

upstream quixzoom_sso {
    server localhost:8080;
    keepalive 32;
}

# SSO Auth Service
server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name auth.quixzoom.com;

    # SSL certificates (Let's Encrypt or similar)
    ssl_certificate /etc/letsencrypt/live/quixzoom.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/quixzoom.com/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;

    # Security headers
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    # CORS for all quixzoom domains
    location / {
        # Preflight
        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' $http_origin always;
            add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always;
            add_header 'Access-Control-Allow-Headers' 'Authorization, Content-Type, X-Requested-With' always;
            add_header 'Access-Control-Allow-Credentials' 'true' always;
            add_header 'Access-Control-Max-Age' 1728000 always;
            add_header 'Content-Type' 'text/plain; charset=utf-8' always;
            add_header 'Content-Length' 0 always;
            return 204;
        }

        # Actual requests
        add_header 'Access-Control-Allow-Origin' $http_origin always;
        add_header 'Access-Control-Allow-Credentials' 'true' always;
        add_header 'Access-Control-Expose-Headers' 'Authorization' always;

        proxy_pass http://quixzoom_sso;
        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 Connection "";
        
        # Cookie handling
        proxy_cookie_domain localhost .quixzoom.com;
        proxy_cookie_path / /;
    }
}

# Redirect HTTP to HTTPS
server {
    listen 80;
    listen [::]:80;
    server_name auth.quixzoom.com;
    return 301 https://$server_name$request_uri;
}