# Nginx конфигурация с SSL шифрованием

# HTTP -> HTTPS redirect
server {
    listen 80;
    server_name _;
    return 301 https://$host$request_uri;
}

# HTTPS сервер
server {
    listen 443 ssl http2;
    server_name hb3-accelerator.com www.hb3-accelerator.com;

    # SSL сертификаты
    ssl_certificate /etc/ssl/certs/server.crt;
    ssl_certificate_key /etc/ssl/certs/server.key;
    ssl_trusted_certificate /etc/ssl/certs/ca.crt;

    # SSL настройки безопасности
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384;
    ssl_prefer_server_ciphers off;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;
    ssl_stapling on;
    ssl_stapling_verify on;

    # Заголовки безопасности
    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 X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    # Проверка Host header
    if ($host !~ ^(hb3-accelerator\.com|www\.hb3-accelerator\.com)$) {
        return 444;
    }

    root /usr/share/nginx/html;
    index index.html;

    # Основной location
    location / {
        try_files $uri $uri/ /index.html =404;
    }

    # API с дополнительной защитой
    location /api/ {
        proxy_pass http://backend:8000/api/;
        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;
        
        # Таймауты
        proxy_connect_timeout 30s;
        proxy_send_timeout 30s;
        proxy_read_timeout 30s;
    }

    # WebSocket с SSL
    location /ws {
        proxy_pass http://backend:8000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        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;
    }

    # Статические файлы
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        add_header Vary Accept-Encoding;
    }

    # Запрет доступа к чувствительным файлам
    location ~* /(\.htaccess|\.htpasswd|\.env|\.git|\.svn|\.DS_Store|Thumbs\.db|web\.config|robots\.txt|sitemap\.xml)$ {
        deny all;
        return 404;
    }

    # Скрытие информации о сервере
    server_tokens off;
    
    # Логирование
    error_log /var/log/nginx/error.log warn;
    access_log /var/log/nginx/access.log combined;
}