client_max_body_size 16m;

proxy_http_version 1.1;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For __X_FORWARDED_FOR__;
proxy_set_header X-Forwarded-Proto __X_FORWARDED_PROTO__;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header Connection "";
proxy_read_timeout 60s;

add_header X-Content-Type-Options "nosniff" always;
add_header Referrer-Policy "strict-origin-when-cross-origin" always;
add_header Permissions-Policy "camera=(), geolocation=(), microphone=(), payment=(), usb=()" always;
add_header X-Frame-Options "SAMEORIGIN" always;

location = /xmlrpc.php {
    return 403;
}

location = /wp-login.php {
    limit_req zone=login burst=5 nodelay;
    proxy_pass http://wordpress_backend;
}

location ^~ /wp-admin/ {
    limit_req zone=site burst=60 nodelay;
    proxy_pass http://wordpress_backend;
}

location ~* ^/(?:wp-content/uploads|wp-content/files)/.*\.php$ {
    return 403;
}

location ~ (^|/)\. {
    return 404;
}

location = /wp-config.php {
    return 404;
}

location / {
    limit_req zone=site burst=60 nodelay;
    add_header Content-Security-Policy "default-src 'self'; base-uri 'self'; object-src 'none'; frame-ancestors 'self'; form-action 'self'; img-src 'self' data: https:; font-src 'self' data:; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline'; connect-src 'self'" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header Permissions-Policy "camera=(), geolocation=(), microphone=(), payment=(), usb=()" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    proxy_pass http://wordpress_backend;
}