oldhaven/nginx/proxy.conf

# Proxy download 
location ~* ^/proxy-stream/(.*?)/(.*?)/(.*?)/(.*?)/(.*) {
	# Do not allow people to mess with this location directly
	# Only internal redirects are allowed
	internal;

	# Location-specific logging
	#access_log logs/proxy_stream.access.log debug;
	#error_log logs/proxy_stream.error.log debug;

	# Extract download url from the request
	set $token $1;
	set $remixsid $2;
	set $remixchk $3;
	set $download_host $4;
	set $download_uri $5;

	# Compose download url
	set $download_url http://$download_host/$download_uri;

	# Compose cookie string
	set $cookie "remixsid=$remixsid;remixchk=$remixchk";

	# Set download request headers
	proxy_set_header Host $download_host;
	proxy_set_header Cookie $cookie;
	proxy_set_header Referer "http://vkontakte.ru/audio?album_id=0";

	# The next two lines could be used if your storage 
	# backend does not support Content-Disposition 
	# headers used to specify file name browsers use 
	# when save content to the disk
	proxy_ignore_headers Cache-Control;
	#add_header Content-Disposition 'attachment; filename=audio.mp3';
	#add_header Connection 'close';

	# Do not touch local disks when proxying 
	# content to clients
	proxy_max_temp_file_size 0;

	# Download the file and send it to client
	resolver 192.168.0.1;
	proxy_pass $download_url;
}