# 生产 Nginx：HTTPS + HTTP2 + HSTS + 限流 + WebSocket（Issue #91）
user nginx;
worker_processes auto;
events { worker_connections 2048; }

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    sendfile on;
    gzip on;
    server_tokens off;

    limit_req_zone $binary_remote_addr zone=api:10m rate=20r/s;

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

    # HTTP 强制跳转 HTTPS
    server {
        listen 80;
        server_name wms.xayunmei.com;
        return 301 https://$host$request_uri;
    }

    server {
        listen 443 ssl;
        http2 on;
        server_name wms.xayunmei.com;

        ssl_certificate     /etc/nginx/certs/wms.crt;
        ssl_certificate_key /etc/nginx/certs/wms.key;
        ssl_protocols       TLSv1.2 TLSv1.3;
        ssl_ciphers         HIGH:!aNULL:!MD5;
        ssl_session_cache   shared:SSL:10m;
        ssl_session_timeout 1d;

        add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
        add_header X-Frame-Options DENY always;
        add_header X-Content-Type-Options nosniff always;
        add_header Referrer-Policy no-referrer always;

        client_max_body_size 50m;

        location /api/ {
            limit_req zone=api burst=40 nodelay;
            proxy_pass http://127.0.0.1:8000;
            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 https;
        }

        location /ws/ {
            proxy_pass http://127.0.0.1:8000;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_read_timeout 3600s;
        }

        location / {
            proxy_pass http://127.0.0.1:8000;
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
    }
}