user www-data;
worker_processes auto;
pid /var/run/nginx.pid;
worker_rlimit_nofile 65535;
worker_priority -5;

load_module /etc/nginx/modules/ngx_http_headers_more_filter_module.so;
load_module /etc/nginx/modules/ngx_http_naxsi_module.so;
load_module /etc/nginx/modules/ngx_http_echo_module.so;
load_module /etc/nginx/modules/ndk_http_module.so;
load_module /etc/nginx/modules/ngx_http_lua_module.so;
load_module /etc/nginx/modules/ngx_http_brotli_filter_module.so;
load_module /etc/nginx/modules/ngx_http_brotli_static_module.so;

events {
    worker_connections 65535;
    multi_accept on;
    use epoll;
}

http {
    server_tokens off;
    more_clear_headers Server;

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;

    reset_timedout_connection on;

    add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline';" always;

    client_header_buffer_size 1k;
    large_client_header_buffers 4 8k;

    client_body_buffer_size 128k;
    client_max_body_size 20M;

    client_body_timeout 60s;
    client_header_timeout 60s;
    keepalive_timeout 65s;
    keepalive_requests 10000;
    send_timeout 30s;

    proxy_connect_timeout 60s;
    proxy_send_timeout 60s;
    proxy_read_timeout 60s;
    proxy_redirect off;
    proxy_buffering on;
    proxy_buffer_size 4k;
    proxy_buffers 8 4k;
    proxy_busy_buffers_size 8k;
    proxy_temp_file_write_size 16k;

    lua_shared_dict blocked_cookies 10M;

    # Enhanced logging format
    #log_format detailed escape=json
    #'{'
    #    '"timestamp": "$time_iso8601",'
    #    '"remote_addr": "$remote_addr",'
    #    '"http_x_forwarded_for": "$http_x_forwarded_for",'
    #    '"upstream_addr": "$upstream_addr",'
    #    '"connection": "$connection",'
    #    '"connection_requests": "$connection_requests",'
    #    '"request_time": "$request_time",'
    #    '"upstream_response_time": "$upstream_response_time",'
    #    '"upstream_connect_time": "$upstream_connect_time",'
    #    '"status": "$status",'
    #    '"upstream_status": "$upstream_status",'
    #    '"body_bytes_sent": "$body_bytes_sent",'
    #    '"request": "$request",'
    #    '"http_user_agent": "$http_user_agent",'
    #    '"cookies": "$http_cookie",'
    #    '"ssl_protocol": "$ssl_protocol",'
    #    '"ssl_cipher": "$ssl_cipher"'
    #'}';

    # Use buffer for access log
    #access_log /var/log/nginx/access.log detailed buffer=32k flush=5s;
    #error_log /var/log/nginx/error.log warn;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;
    include /etc/nginx/naxsi_core.rules;

    gzip on;
    gzip_vary on;
    gzip_types text/plain text/css text/xml text/javascript 
               application/json application/javascript application/xml+rss 
               application/rss+xml application/atom+xml image/svg+xml 
               text/x-js text/x-cross-domain-policy application/x-font-ttf 
               application/x-font-opentype application/vnd.ms-fontobject 
               image/x-icon application/x-javascript text/x-component 
               font/opentype font/ttf font/otf;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_min_length 256;
    gzip_disable "msie6";

    brotli on;
    brotli_static on;
    brotli_types text/plain text/css text/xml text/javascript 
                 application/json application/javascript application/xml+rss 
                 application/rss+xml application/atom+xml image/svg+xml 
                 text/x-js text/x-cross-domain-policy application/x-font-ttf 
                 application/x-font-opentype application/vnd.ms-fontobject 
                 image/x-icon application/x-javascript text/x-component 
                 font/opentype font/ttf font/otf;
    brotli_comp_level 6;
    brotli_min_length 256;

    # Include virtual hosts
    include /etc/nginx/sites-enabled/*;
}