tipschain-ecosystem/config/nginx-dex.conf at main · tipspay-dev/tipschain-ecosystem · GitHub

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# DEX Service - dex.tipschain.sbs
# Place this in /etc/nginx/sites-available/dex.tipschain.sbs

server {
    listen 80;
    listen [::]:80;
    server_name dex.tipschain.sbs www.dex.tipschain.sbs;

    # Redirect to HTTPS
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name dex.tipschain.sbs www.dex.tipschain.sbs;

    # SSL Certificates
    ssl_certificate /etc/letsencrypt/live/dex.tipschain.sbs/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/dex.tipschain.sbs/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/dex.tipschain.sbs/chain.pem;

    # SSL Configuration
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;

    # OCSP stapling
    ssl_stapling on;
    ssl_stapling_verify on;
    resolver 8.8.8.8 8.8.4.4 valid=300s;
    resolver_timeout 5s;

    # Security headers
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "no-referrer-when-downgrade" always;
    add_header Content-Security-Policy "default-src 'self' https: data: 'unsafe-inline' 'unsafe-eval' wss:" always;

    # Logging
    access_log /var/log/nginx/dex-access.log main;
    error_log /var/log/nginx/dex-error.log warn;

    # Rate limiting
    limit_req zone=dex_limit burst=20 nodelay;

    # Proxy to Next.js backend
    location / {
        proxy_pass http://dex_backend;
        proxy_http_version 1.1;

        # Connection headers
        proxy_set_header Connection "";
        proxy_set_header Host $host;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        # Client information
        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;

        # Timeouts
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;

        # Buffering
        proxy_buffering on;
        proxy_buffer_size 4k;
        proxy_buffers 8 4k;
        proxy_busy_buffers_size 8k;
    }

    # API endpoints - gassless swaps need longer timeout
    location ~ ^/api/ {
        proxy_pass http://dex_backend;
        proxy_http_version 1.1;

        proxy_set_header Connection "";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        # Long timeout for relayer transactions
        proxy_read_timeout 180s;
        proxy_connect_timeout 60s;

        # No caching for API
        proxy_no_cache 1;
        proxy_cache_bypass 1;
    }

    # Static assets
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        proxy_pass http://dex_backend;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # Deny hidden files
    location ~ /\. {
        deny all;
    }
}