From 2e032cfbab74218769ee8d040f11d3a2ad567cb4 Mon Sep 17 00:00:00 2001
From: Thibault Duplessis <thibault.duplessis@gmail.com>
Date: Wed, 12 Aug 2015 11:46:44 +0200
Subject: [PATCH] log slow processing of the fingerprint

---
 app/controllers/Auth.scala | 5 +++--
 conf/routes                | 2 +-
 public/javascripts/big.js  | 4 +++-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/app/controllers/Auth.scala b/app/controllers/Auth.scala
index c8aa883677..ce96790be8 100644
--- a/app/controllers/Auth.scala
+++ b/app/controllers/Auth.scala
@@ -8,7 +8,7 @@ import play.api.Play.current
 
 import lila.api.Context
 import lila.app._
-import lila.common.LilaCookie
+import lila.common.{ LilaCookie, HTTPRequest }
 import lila.user.{ UserRepo, User => UserModel }
 import views._
 
@@ -155,8 +155,9 @@ object Auth extends LilaController {
     html = Unauthorized(html.auth.tor()).fuccess,
     api = _ => Unauthorized(Json.obj("error" -> "Can't login from TOR, sorry!")).fuccess)
 
-  def setFingerprint(hash: String) = Auth { ctx =>
+  def setFingerprint(hash: String, ms: Int) = Auth { ctx =>
     me =>
+      if (ms > 1000) logwarn(s"[Fingerprint] ${me.username} $ms ms / ${~HTTPRequest.userAgent(ctx.req)}")
       api.setFingerprint(ctx.req, hash) inject Ok
   }
 
diff --git a/conf/routes b/conf/routes
index 56e12941a2..15197d1354 100644
--- a/conf/routes
+++ b/conf/routes
@@ -234,7 +234,7 @@ POST  /password/reset/send             controllers.Auth.passwordResetApply
 GET   /password/reset/sent/:email      controllers.Auth.passwordResetSent(email: String)
 GET   /password/reset/confirm/:token   controllers.Auth.passwordResetConfirm(token: String)
 POST  /password/reset/confirm/:token   controllers.Auth.passwordResetConfirmApply(token: String)
-POST  /set-fingerprint/:hash           controllers.Auth.setFingerprint(hash: String)
+POST  /set-fingerprint/:hash/:ms       controllers.Auth.setFingerprint(hash: String, ms: Int)
 
 # Mod
 POST  /mod/:username/engine            controllers.Mod.engine(username: String)
diff --git a/public/javascripts/big.js b/public/javascripts/big.js
index 2979230807..cfcb25e7f4 100644
--- a/public/javascripts/big.js
+++ b/public/javascripts/big.js
@@ -1049,10 +1049,12 @@ lichess.storage = {
     });
 
     if (window.Fingerprint2) setTimeout(function() {
+      var t = +new Date();
       new Fingerprint2({
         excludeJsFonts: true
       }).get(function(res) {
-        $.post('/set-fingerprint/' + res);
+        var time = (+new Date()) - t;
+        $.post('/set-fingerprint/' + res + '/' + time);
       });
     }, 500);
   });