diff --git a/account/decorators.py b/account/decorators.py
index 2646c02..b0dbecb 100644
--- a/account/decorators.py
+++ b/account/decorators.py
@@ -1,4 +1,5 @@
 # coding=utf-8
+import urllib
 import functools
 from functools import wraps
 
@@ -27,7 +28,7 @@ class BasePermissionDecorator(object):
             if self.request.is_ajax():
                 return error_response(u"请先登录")
             else:
-                return HttpResponseRedirect("/login/")
+                return HttpResponseRedirect("/login/?__from=" + urllib.quote(self.request.build_absolute_uri()))
 
     def check_permission(self):
         raise NotImplementedError()
diff --git a/contest/decorators.py b/contest/decorators.py
index d08783c..2f5e3ba 100644
--- a/contest/decorators.py
+++ b/contest/decorators.py
@@ -1,4 +1,5 @@
 # coding=utf-8
+import urllib
 from functools import wraps
 
 from django.http import HttpResponse, HttpResponseRedirect
@@ -30,7 +31,7 @@ def check_user_contest_permission(func):
             if request.is_ajax():
                 return error_response(u"请先登录")
             else:
-                return HttpResponseRedirect("/login/")
+                return HttpResponseRedirect("/login/?__from=" + urllib.quote(request.build_absolute_uri()))
 
         # kwargs 就包含了 url 里面的参数
         if "contest_id" in kwargs:
diff --git a/contest/test_urls.py b/contest/test_urls.py
deleted file mode 100644
index 234c600..0000000
--- a/contest/test_urls.py
+++ /dev/null
@@ -1,9 +0,0 @@
-# coding=utf-8
-from django.conf.urls import include, url
-from django.views.generic import TemplateView
-
-
-urlpatterns = [
-
-    url(r'^login/$', TemplateView.as_view(template_name="oj/account/login.html"), name="user_login_page"),
-]
diff --git a/static/src/js/app/oj/account/login.js b/static/src/js/app/oj/account/login.js
index 42b8d68..8e1351d 100644
--- a/static/src/js/app/oj/account/login.js
+++ b/static/src/js/app/oj/account/login.js
@@ -14,21 +14,18 @@ require(["jquery", "bsAlert", "csrfToken", "validator"], function ($, bsAlert, c
                 method: "post",
                 success: function (data) {
                     if (!data.code) {
-                        //成功登陆
-                        var ref = document.referrer;
-                        if (ref) {
-                            // 注册页和本页的来源的跳转回首页，防止死循环
-                            if (ref.indexOf("register") > -1 || ref.indexOf("login") > -1) {
-                                location.href = "/";
-                                return;
-                            }
-                            // 判断来源，只有同域下才跳转
-                            if (ref.split("/")[2].split(":")[0] == location.hostname) {
-                                location.href = ref;
-                                return;
-                            }
+                        function getLocationVal(id){
+                            var temp = unescape(location.search).split(id+"=")[1] || "";
+                            return temp.indexOf("&")>=0 ? temp.split("&")[0] : temp;
+                        }
+                        var from = getLocationVal("__from");
+                        if(from != ""){
+                            console.log(from);
+                            window.location.href = from;
+                        }
+                        else{
+                            location.href = "/";
                         }
-                        location.href = "/";
                     }
                     else {
                         refresh_captcha();
diff --git a/template/src/oj/account/oauth.html b/template/src/oj/account/sso.html
similarity index 100%
rename from template/src/oj/account/oauth.html
rename to template/src/oj/account/sso.html