Accept Merge Request #257 增加比赛倒计时 api；修复小 bug : (virusdefender-dev -> dev)

Merge Request: 增加比赛倒计时 api；修复小 bug
Created By: @virusdefender
Accepted By: @virusdefender
URL: https://coding.net/u/virusdefender/p/qduoj/git/merge/257

account/views.py

@@ -26,17 +26,15 @@ class UserLoginAPIView(APIView):
         serializer = UserLoginSerializer(data=request.data)
         if serializer.is_valid():
             data = serializer.data
-            user = User.objects.get(username=data["username"])
-            # 只有管理员才适用验证码登录
+            user = auth.authenticate(username=data["username"], password=data["password"])
+            # 用户名或密码错误的话 返回None
+            if user:
                 if user.admin_type > 0:
-                if not "captcha" in data:
+                    if "captcha" not in data:
                         return error_response(u"请填写验证码！")
                     captcha = Captcha(request)
                     if not captcha.check(data["captcha"]):
                         return error_response(u"验证码错误")
-            user = auth.authenticate(username=data["username"], password=data["password"])
-            # 用户名或密码错误的话 返回None
-            if user:
                 auth.login(request, user)
                 return success_response(u"登录成功")
             else:

contest/views.py

@@ -7,6 +7,8 @@ from django.db import IntegrityError
 from django.utils import dateparse
 from django.db.models import Q, Sum
 from django.core.paginator import Paginator
+from django.utils.timezone import now
+
 from rest_framework.views import APIView
 
 from utils.shortcuts import (serializer_invalid_response, error_response,
@@ -454,3 +456,22 @@ def contest_rank_page(request, contest_id):
                    "auto_refresh": request.GET.get("auto_refresh", None) == "true",
                    "show_real_name": request.GET.get("show_real_name", None) == "true",
                    "real_time_rank": contest.real_time_rank})
+
+
+class ContestTimeAPIView(APIView):
+    """
+    获取比赛开始或者结束的倒计时，返回毫秒数字
+    """
+    def get(self, request):
+        t = request.GET.get("type", "start")
+        contest_id = request.GET.get("contest_id", -1)
+        try:
+            contest = Contest.objects.get(id=contest_id)
+        except Contest.DoesNotExist:
+            return error_response(u"比赛不存在")
+        if t == "start":
+            # 距离开始还有多长时间
+            return success_response(int((contest.start_time - now()).total_seconds() * 1000))
+        else:
+            # 距离结束还有多长时间
+            return success_response(int((contest.end_time - now()).total_seconds() * 1000))

judge/judger/client.py

@@ -98,16 +98,17 @@ class JudgeClient(object):
 
     def _compare_output(self, test_case_id):
         test_case_config = self._test_case_info["test_cases"][str(test_case_id)]
-        test_case_md5 = test_case_config["output_md5"]
         output_path = judger_workspace + str(test_case_id) + ".out"
 
         try:
             f = open(output_path, "rb")
         except IOError:
             # 文件不存在等引发的异常 返回结果错误
-            return False
+            return "", False
 
+        if "striped_output_md5" not in test_case_config:
             # 计算输出文件的md5 和之前测试用例文件的md5进行比较
+            # 兼容之前没有striped_output_md5的测试用例
             # 现在比较的是完整的文件
             md5 = hashlib.md5()
             while True:
@@ -115,19 +116,16 @@ class JudgeClient(object):
                 if not data:
                     break
                 md5.update(data)
+            output_md5 = md5.hexdigest()
 
-        if md5.hexdigest() == test_case_md5:
-            return True
+            return output_md5, output_md5 == test_case_config["output_md5"]
         else:
             # 这时候需要去除用户输出最后的空格和换行 再去比较md5
-            # 兼容之前没有striped_output_md5的测试用例
-            if "striped_output_md5" not in test_case_config:
-                return False
-            f.seek(0)
-            striped_md5 = hashlib.md5()
+            md5 = hashlib.md5()
             # 比较和返回去除空格后的md5比较结果
-            striped_md5.update(f.read().rstrip())
-            return striped_md5.hexdigest() == test_case_config["striped_output_md5"]
+            md5.update(f.read().rstrip())
+            output_md5 = md5.hexdigest()
+            return output_md5, output_md5 == test_case_config["striped_output_md5"]
 
     def _judge_one(self, test_case_id):
         # 运行lrun程序 接收返回值
@@ -157,10 +155,12 @@ class JudgeClient(object):
             return run_result
 
         # 下面就是代码正常运行了 需要判断代码的输出是否正确
-        if self._compare_output(test_case_id):
+        output_md5, r = self._compare_output(test_case_id)
+        if r:
             run_result["result"] = result["accepted"]
         else:
             run_result["result"] = result["wrong_answer"]
+        run_result["output_md5"] = output_md5
 
         return run_result
 

oj/urls.py

@@ -8,7 +8,8 @@ from account.views import (UserLoginAPIView, UsernameCheckAPIView, UserRegisterA
 
 from announcement.views import AnnouncementAdminAPIView
 
-from contest.views import ContestAdminAPIView, ContestProblemAdminAPIView, ContestPasswordVerifyAPIView
+from contest.views import (ContestAdminAPIView, ContestProblemAdminAPIView,
+                           ContestPasswordVerifyAPIView, ContestTimeAPIView)
 
 from group.views import (GroupAdminAPIView, GroupMemberAdminAPIView,
                          JoinGroupAPIView, JoinGroupRequestAdminAPIView)
@@ -25,7 +26,6 @@ from contest_submission.views import contest_problem_my_submissions_list_page
 
 
 urlpatterns = [
-    url(r'^install/$', "install.views.install"),
     url("^$", "account.views.index_page", name="index_page"),
     url(r'^docs/', include('rest_framework_swagger.urls')),
     url(r'^admin/$', TemplateView.as_view(template_name="admin/admin.html"), name="admin_spa_page"),
@@ -117,4 +117,6 @@ urlpatterns = [
 
     url(r'^captcha/$', "utils.captcha.views.show_captcha", name="show_captcha"),
     url(r'^api/account_security_check/$', AccountSecurityAPIView.as_view(), name="account_security_check"),
+
+    url(r'^api/contest/time/$', ContestTimeAPIView.as_view(), name="contest_time_api_view"),
 ]

static/src/js/app/oj/problem/problem.js

@@ -86,7 +86,7 @@ require(["jquery", "codeMirror", "csrfToken", "bsAlert", "ZeroClipboard"],
         function getResult() {
             if (counter++ > 10) {
                 hideLoading();
-                bsAlert("抱歉，服务器可能出现了故障，请稍后到我的提交列表中查看");
+                bsAlert("抱歉，服务器正在紧张判题中，请稍后到我的提交列表中查看");
                 counter = 0;
                 return;
             }
@@ -130,6 +130,39 @@ require(["jquery", "codeMirror", "csrfToken", "bsAlert", "ZeroClipboard"],
             }
         }
 
+        function getServerTime(){
+            var contestId = location.pathname.split("/")[2];
+            var time = 0;
+            $.ajax({
+                url: "/api/contest/time/?contest_id=" + contestId + "&type=end",
+                dataType: "json",
+                method: "get",
+                async: false,
+                success: function(data){
+                    if(!data.code){
+                        time = data.data;
+                    }
+                },
+                error: function(){
+                    time = new Date().getTime();
+                }
+            });
+            return time;
+        }
+
+        if(location.href.indexOf("contest") > -1) {
+            setInterval(function () {
+                var time = getServerTime();
+                var minutes = parseInt(time / (1000 * 60));
+                if(minutes == 0){
+                    bsAlert("比赛即将结束");
+                }
+                else if(minutes > 0 && minutes <= 5){
+                    bsAlert("比赛还剩" + minutes.toString() + "分钟");
+                }
+            }, 1000 * 60);
+        }
+
         $("#submit-code-button").click(function () {
 
             var code = codeEditor.getValue();

template/src/utils/help.html

@@ -45,7 +45,9 @@ java -cp {exe_path} Main</pre>
                 <li>C/C++ 的64位整数类型，请使用 <code>long long</code> 声明，使用 <code>cin/cout</code> 或 <code>%lld</code> 输入输出。
                     使用<code>__int64</code>会导致编译错误。</li>
                 <li>程序执行时间指CPU时间，占用内存按执行过程中内存消耗的峰值计，有多组测试数据时以最大的时间和内存消耗为准</li>
-
+                <li>判题的时候会去除你的输出的最后的换行和空格，然后与去除最后的换行和空格的答案做比较，如果不一致就是 Wrong Answer。
+                    其余的行末空格和空行不去除，看清楚题目的要求。没有格式错误。
+                </li>
             </ul>
         </div>
     </div>