// hanging indefinitely (which might have them return errors).
var touch_timer = undefined;
+// If we are behind Varnish, we can't count the number of clients
+// ourselves, so some external log-tailing daemon needs to tell us.
+var viewer_count_override = undefined;
+
var reread_file = function(event, filename) {
if (filename != path.basename(json_filename)) {
return;
response.write('Something went wrong. Sorry.');
response.end();
}
+var handle_viewer_override = function(request, u, response) {
+ // Only accept requests from localhost.
+ var peer = request.socket.localAddress;
+ if ((peer != '127.0.0.1' && peer != '::1') || request.headers['x-forwarded-for']) {
+ console.log("Refusing viewer override from " + peer);
+ send_404(response);
+ } else {
+ viewer_count_override = (u.query)['num'];
+ response.writeHead(200, {
+ 'Content-Type': 'text/plain',
+ });
+ response.write('OK.');
+ response.end();
+ }
+}
var send_json = function(response, accept_gzip, num_viewers) {
var headers = {
'Content-Type': 'text/json',
}
}
var count_viewers = function() {
+ if (viewer_count_override !== undefined) {
+ return viewer_count_override;
+ }
+
var now = (new Date).getTime();
// Go through and remove old viewers, and count them at the same time.
var unique = (u.query)['unique'];
console.log((new Date).getTime()*1e-3 + " " + request.url);
-
+ if (u.pathname === '/override-num-viewers') {
+ handle_viewer_override(request, u, response);
+ return;
+ }
if (u.pathname !== '/analysis.pl') {
// This is not the request you are looking for.
send_404(response);