### Rozhuk Ivan 2012 - 2015
### nginx configuration file
### for torrent retracker proxy


user			www www;
daemon			on;
worker_processes	2;
worker_priority		0;
pid			/var/run/nginx.pid;

master_process		on;
timer_resolution	100ms;
pcre_jit		on;


events {
	worker_connections 65535;
	# use [ kqueue | rtsig | epoll | /dev/poll | select | poll ];
	#use kqueue;
	accept_mutex on;
	accept_mutex_delay 100ms;
	multi_accept on;
}


http {
	include				mime.types;
	uninitialized_variable_warn	on;


	upstream torent_retracker_proxy {
		server 172.16.0.3:8080 max_fails=8 fail_timeout=30s;
	}

	server {
		listen			0.0.0.0:57777 rcvbuf=4k sndbuf=8k accept_filter=httpready;
		tcp_nopush		on;
		tcp_nodelay		on;
		send_lowat		0;
		keepalive_timeout	65 60;
		send_timeout		3600;
		reset_timedout_connection on;

		proxy_set_header	Host $http_host;
		proxy_set_header	X-Real-IP $remote_addr;
		proxy_set_header	X-Forwarded-For $proxy_add_x_forwarded_for;
		proxy_set_header	Connection close;
		proxy_http_version	1.1;
		chunked_transfer_encoding off;

		proxy_buffering	on;
		proxy_buffers		4 4k;
		#proxy_buffer_size	4k;
		proxy_max_temp_file_size 0;
		proxy_store		off;
		proxy_cache		off;

		proxy_connect_timeout	30s;
		proxy_send_timeout	60s;
		proxy_read_timeout	120s;

		proxy_redirect		off;
		proxy_ignore_headers	X-Accel-Buffering X-Accel-Limit-Rate X-Accel-Redirect;
		access_log		off;

		# Error handling
		proxy_ignore_client_abort off;
		proxy_next_upstream	error timeout;
		proxy_intercept_errors	on;
		recursive_error_pages	on;
		error_page		502 = @proxy_req;
		error_page		504 = @proxy_req;
		error_page		599 = @proxy_req;


		location / {
			if ($arg_info_hash = "") {
				return 599;
			}

			if ($args ~* ^(.*)&ip=[^&]+(.*)$) {
				set $args $1$2;
			}
			rewrite ^(.*)$ $1?$args&ip=$remote_addr? break;

			proxy_pass http://torent_retracker_proxy;
		}

		location @proxy_req {
			internal;
			proxy_pass http://$http_host;
		}
	}
}