# ====================================================================================
# ARQUIVO DE CONFIGURAÇÃO NGINX
# ------------------------------------------------------------------------------------
# SITE: petytransportes.com.br (Proxy Reverso para WordPress)
# AUTOR: Gemini (Especialista NGINX)
# DATA DA ALTERAÇÃO: 2025-10-14 (v4 - Versão Final)
#
# CONTEXTO:
# - Arquivo final com diretivas SSL descomentadas, pronto para produção.
# - Log condicional para bad bots implementado com o parâmetro 'if='.
# - Estrutura de cache, segurança e performance otimizada para WordPress.
# ====================================================================================

# --- Definição da zona de rate limit para a página de login do WordPress ---
limit_req_zone $binary_remote_addr zone=pety_wp_login:10m rate=5r/m;

# ====================================================================================
# SERVIDOR HTTP (PORTA 80) - REDIRECIONAMENTO PARA HTTPS
# ====================================================================================
server {
    if ($host = www.petytransportes.com.br) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    if ($host = petytransportes.com.br) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    listen 80;
    listen [::]:80;
    server_name petytransportes.com.br www.petytransportes.com.br;

    access_log /var/log/nginx/petytransportes.com.br.access.log detailed_proxy;
    error_log  /var/log/nginx/petytransportes.com.br.error.log warn;

    # --- Rota para Renovação de Certificado SSL (Let's Encrypt) ---
    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

    # --- Redirecionamento Permanente para HTTPS ---
    location / {
        return 301 https://$host$request_uri;
    }




}

# ====================================================================================
# SERVIDOR HTTPS (PORTA 443) - CONFIGURAÇÃO PRINCIPAL
# ====================================================================================
server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name petytransportes.com.br www.petytransportes.com.br;

    # --- Logs Dedicados do Site ---
    access_log /var/log/nginx/petytransportes.com.br.access.log detailed_proxy if=!$block_request;
    access_log /var/log/nginx/petytransportes.com.br.bad-bot.log suspicious_bot if=$block_request;
    error_log  /var/log/nginx/petytransportes.com.br.error.log warn;

    # ------------------------------------------------
    # Segurança
    # ------------------------------------------------
    # --- BLOQUEIO DE BOTS E URIs MALICIOSAS ---
    if ($block_request) {
        return 404;
    }

    # --- Proteção contra acesso a arquivos sensíveis ---
    location ~ /\. { deny all; }
    location ~* /(?:setup\.php|README\.md|readme\.html|license\.txt|wp-config-sample\.php|web\.config) { deny all; }
    location ~* \.(env|git|svn|bak|sql|zip|tar\.gz)$ { deny all; }
    location = /xmlrpc.php { deny all; }
    
    # ------------------------------------------------
    # Configuração SSL/TLS
    # ------------------------------------------------
    #ssl_certificate /etc/letsencrypt/live/petytransportes.com.br/fullchain.pem;
    #ssl_certificate_key /etc/letsencrypt/live/petytransportes.com.br/privkey.pem;
    #ssl_trusted_certificate /etc/letsencrypt/live/petytransportes.com.br/fullchain.pem;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;
    ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384';
    
    ssl_session_timeout 1d;
    ssl_session_tickets off;

    resolver 8.8.8.8 1.1.1.1 valid=300s;
    resolver_timeout 5s;
    ssl_stapling on;
    ssl_stapling_verify on;

    # ------------------------------------------------
    # Headers de Segurança
    # ------------------------------------------------
    add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "no-referrer-when-downgrade" always;
    
    # ------------------------------------------------
    # Compressão (Brotli e Gzip)
    # ------------------------------------------------
    brotli on;
    brotli_comp_level 6;
    brotli_min_length 1024;
    brotli_types text/plain text/css application/javascript application/json image/svg+xml application/xml+rss;

    gzip on;
    gzip_min_length 1024;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 5;
    gzip_types text/plain text/css application/javascript application/json image/svg+xml application/xml+rss;

    # ------------------------------------------------
    # Locations (Regras de Proxy Reverso)
    # ------------------------------------------------

    # --- PROTEÇÃO PARA A PÁGINA DE LOGIN ---
    location = /wp-login.php {
        limit_req zone=pety_wp_login burst=3 nodelay;
        
        proxy_pass https://172.16.12.2;
        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_ssl_server_name on;
        proxy_ssl_name $host;
        proxy_http_version 1.1;
        proxy_set_header Connection "upgrade";
        proxy_read_timeout 90s;
        proxy_buffering off;
    }

    # --- CACHE PARA ARQUIVOS ESTÁTICOS ---
    location ~* \.(jpg|jpeg|gif|png|webp|svg|ico|css|js|woff|woff2|ttf|eot)$ {
        proxy_pass https://172.16.12.2;
        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_ssl_server_name on;
        proxy_ssl_name $host;

        proxy_cache static_cache;
        proxy_cache_key "$scheme$request_method$host$request_uri";
        proxy_cache_valid 200 304 90d;
        proxy_cache_valid any 1m;
        proxy_cache_use_stale error timeout updating http_500 http_502 http_503 http_504;
        proxy_cache_lock on;

        add_header X-Cache-Status $upstream_cache_status;
        expires 90d;
        access_log off;
    }
    
    # --- REGRA GERAL PARA O WORDPRESS ---
    location / {
        proxy_pass https://172.16.12.2;
        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;
        proxy_set_header X-Forwarded-Port $server_port;
        proxy_ssl_server_name on;
        proxy_ssl_name $host;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_connect_timeout 90s;
        proxy_send_timeout 90s;
        proxy_read_timeout 90s;
        proxy_buffering off;
    }

    ssl_certificate /etc/letsencrypt/live/petytransportes.com.br/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/petytransportes.com.br/privkey.pem; # managed by Certbot

}