ffi1 = require("ffi");
ipaddr = ngx.var.remote_addr;
if ngx.var.http_addr ~= nil then
    ipaddr = ngx.var.http_addr
end
new_http_host  = ffi1.string(ipzone.get_ipzone(ipaddr,ngx.var.host,ngx.var.request_uri));
--ngx.say(ipaddr .. ':' .. ngx.var.http_host .. ':' .. ngx.var.request_uri);
if ngx.var.server_port ~= '80' then
    new_location = 'http://' .. new_http_host .. ':' .. ngx.var.server_port .. ngx.var.request_uri;
else
    new_location = 'http://' .. new_http_host .. ngx.var.request_uri;
end
return ngx.redirect(new_location);