mirror of
https://github.com/QingdaoU/OnlineJudge.git
synced 2025-01-01 10:02:01 +00:00
444 lines
20 KiB
Python
444 lines
20 KiB
Python
# coding=utf-8
|
||
import json
|
||
import datetime
|
||
import redis
|
||
|
||
from django.shortcuts import render
|
||
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 django.conf import settings
|
||
|
||
from rest_framework.views import APIView
|
||
|
||
from utils.shortcuts import (serializer_invalid_response, error_response,
|
||
success_response, paginate, error_page, paginate_data)
|
||
from account.models import SUPER_ADMIN, User
|
||
from account.decorators import login_required
|
||
from group.models import Group
|
||
from utils.cache import get_cache_redis
|
||
from .models import (Contest, ContestProblem, CONTEST_ENDED,
|
||
CONTEST_NOT_START, CONTEST_UNDERWAY, ContestRank)
|
||
from .models import GROUP_CONTEST, PUBLIC_CONTEST, PASSWORD_PROTECTED_CONTEST
|
||
from .decorators import check_user_contest_permission
|
||
from .serializers import (CreateContestSerializer, ContestSerializer, EditContestSerializer,
|
||
CreateContestProblemSerializer, ContestProblemSerializer,
|
||
ContestPasswordVerifySerializer,
|
||
EditContestProblemSerializer)
|
||
|
||
|
||
class ContestAdminAPIView(APIView):
|
||
def post(self, request):
|
||
"""
|
||
比赛发布json api接口
|
||
---
|
||
request_serializer: CreateContestSerializer
|
||
response_serializer: ContestSerializer
|
||
"""
|
||
serializer = CreateContestSerializer(data=request.data)
|
||
if serializer.is_valid():
|
||
data = serializer.data
|
||
groups = []
|
||
# 首先判断比赛的类型： 0 即为是小组赛(GROUP_CONTEST)，1 即为是无密码的公开赛(PUBLIC_CONTEST)，
|
||
# 2 即为是有密码的公开赛(PASSWORD_PUBLIC_CONTEST)
|
||
# 此时为有密码的公开赛，并且此时只能超级管理员才有权限此创建比赛
|
||
if data["contest_type"] in [PUBLIC_CONTEST, PASSWORD_PROTECTED_CONTEST]:
|
||
if request.user.admin_type != SUPER_ADMIN:
|
||
return error_response(u"只有超级管理员才可创建公开赛")
|
||
|
||
if data["contest_type"] == PASSWORD_PROTECTED_CONTEST:
|
||
if not data["password"]:
|
||
return error_response(u"此比赛为有密码的公开赛，密码不可为空")
|
||
# 没有密码的公开赛 没有密码的小组赛
|
||
elif data["contest_type"] == GROUP_CONTEST:
|
||
if request.user.admin_type == SUPER_ADMIN:
|
||
groups = Group.objects.filter(id__in=data["groups"])
|
||
else:
|
||
groups = Group.objects.filter(id__in=data["groups"], admin=request.user)
|
||
if not groups.count():
|
||
return error_response(u"请至少选择一个小组")
|
||
if data["start_time"] >= data["end_time"]:
|
||
return error_response(u"比赛的开始时间必须早于比赛结束的时间")
|
||
try:
|
||
contest = Contest.objects.create(title=data["title"], description=data["description"],
|
||
mode=data["mode"], contest_type=data["contest_type"],
|
||
real_time_rank=data["real_time_rank"], password=data["password"],
|
||
show_user_submission=data["show_user_submission"],
|
||
start_time=dateparse.parse_datetime(data["start_time"]),
|
||
end_time=dateparse.parse_datetime(data["end_time"]),
|
||
created_by=request.user, visible=data["visible"])
|
||
except IntegrityError:
|
||
return error_response(u"比赛名已经存在")
|
||
contest.groups.add(*groups)
|
||
return success_response(ContestSerializer(contest).data)
|
||
else:
|
||
return serializer_invalid_response(serializer)
|
||
|
||
def put(self, request):
|
||
"""
|
||
比赛编辑json api接口
|
||
---
|
||
request_serializer: EditContestSerializer
|
||
response_serializer: ContestSerializer
|
||
"""
|
||
serializer = EditContestSerializer(data=request.data)
|
||
if serializer.is_valid():
|
||
data = serializer.data
|
||
groups = []
|
||
try:
|
||
# 超级管理员可以编辑所有的
|
||
contest = Contest.objects.get(id=data["id"])
|
||
if request.user.admin_type != SUPER_ADMIN:
|
||
contest = contest.get(created_by=request.user)
|
||
except Contest.DoesNotExist:
|
||
return error_response(u"该比赛不存在！")
|
||
try:
|
||
contest = Contest.objects.get(title=data["title"])
|
||
if contest.id != data["id"]:
|
||
return error_response(u"该比赛名称已经存在")
|
||
except Contest.DoesNotExist:
|
||
pass
|
||
if data["contest_type"] in [PUBLIC_CONTEST, PASSWORD_PROTECTED_CONTEST]:
|
||
if request.user.admin_type != SUPER_ADMIN:
|
||
return error_response(u"只有超级管理员才可创建公开赛")
|
||
if data["contest_type"] == PASSWORD_PROTECTED_CONTEST:
|
||
if not data["password"]:
|
||
return error_response(u"此比赛为有密码的公开赛，密码不可为空")
|
||
elif data["contest_type"] == GROUP_CONTEST:
|
||
if request.user.admin_type == SUPER_ADMIN:
|
||
groups = Group.objects.filter(id__in=data["groups"])
|
||
else:
|
||
groups = Group.objects.filter(id__in=data["groups"], admin=request.user)
|
||
if not groups.count():
|
||
return error_response(u"请至少选择一个小组")
|
||
if data["start_time"] >= data["end_time"]:
|
||
return error_response(u"比赛的开始时间必须早于比赛结束的时间")
|
||
|
||
# 之前是封榜，现在要开放，需要清除缓存
|
||
if contest.real_time_rank == False and data["real_time_rank"] == True:
|
||
r = get_cache_redis()
|
||
cache_key = str(contest.id) + "_rank_cache"
|
||
r.delete(cache_key)
|
||
|
||
contest.title = data["title"]
|
||
contest.description = data["description"]
|
||
contest.mode = data["mode"]
|
||
contest.contest_type = data["contest_type"]
|
||
contest.real_time_rank = data["real_time_rank"]
|
||
contest.show_user_submission = data["show_user_submission"]
|
||
contest.start_time = dateparse.parse_datetime(data["start_time"])
|
||
contest.end_time = dateparse.parse_datetime(data["end_time"])
|
||
contest.visible = data["visible"]
|
||
contest.password = data["password"]
|
||
contest.save()
|
||
|
||
contest.groups.clear()
|
||
contest.groups.add(*groups)
|
||
return success_response(ContestSerializer(contest).data)
|
||
else:
|
||
return serializer_invalid_response(serializer)
|
||
|
||
def get(self, request):
|
||
"""
|
||
比赛分页json api接口
|
||
---
|
||
response_serializer: ContestSerializer
|
||
"""
|
||
if request.user.admin_type == SUPER_ADMIN:
|
||
contest = Contest.objects.all().order_by("-create_time")
|
||
else:
|
||
contest = Contest.objects.filter(created_by=request.user).order_by("-create_time")
|
||
visible = request.GET.get("visible", None)
|
||
if visible:
|
||
contest = contest.filter(visible=(visible == "true"))
|
||
keyword = request.GET.get("keyword", None)
|
||
if keyword:
|
||
contest = contest.filter(Q(title__contains=keyword) |
|
||
Q(description__contains=keyword))
|
||
return paginate(request, contest, ContestSerializer)
|
||
|
||
|
||
class ContestProblemAdminAPIView(APIView):
|
||
def post(self, request):
|
||
"""
|
||
比赛题目发布json api接口
|
||
---
|
||
request_serializer: CreateContestProblemSerializer
|
||
response_serializer: ContestProblemSerializer
|
||
"""
|
||
serializer = CreateContestProblemSerializer(data=request.data)
|
||
if serializer.is_valid():
|
||
data = serializer.data
|
||
try:
|
||
contest = Contest.objects.get(id=data["contest_id"])
|
||
if request.user.admin_type != SUPER_ADMIN:
|
||
contest = contest.get(created_by=request.user)
|
||
except Contest.DoesNotExist:
|
||
return error_response(u"比赛不存在")
|
||
contest_problem = ContestProblem.objects.create(title=data["title"],
|
||
description=data["description"],
|
||
input_description=data["input_description"],
|
||
output_description=data["output_description"],
|
||
test_case_id=data["test_case_id"],
|
||
samples=json.dumps(data["samples"]),
|
||
time_limit=data["time_limit"],
|
||
memory_limit=data["memory_limit"],
|
||
created_by=request.user,
|
||
hint=data["hint"],
|
||
contest=contest,
|
||
sort_index=data["sort_index"],
|
||
score=data["score"])
|
||
return success_response(ContestProblemSerializer(contest_problem).data)
|
||
else:
|
||
return serializer_invalid_response(serializer)
|
||
|
||
def put(self, request):
|
||
"""
|
||
比赛题目编辑json api接口
|
||
---
|
||
request_serializer: EditContestProblemSerializer
|
||
response_serializer: ContestProblemSerializer
|
||
"""
|
||
serializer = EditContestProblemSerializer(data=request.data)
|
||
if serializer.is_valid():
|
||
data = serializer.data
|
||
|
||
try:
|
||
contest_problem = ContestProblem.objects.get(id=data["id"])
|
||
except ContestProblem.DoesNotExist:
|
||
return error_response(u"该比赛题目不存在！")
|
||
contest = Contest.objects.get(id=contest_problem.contest_id)
|
||
if request.user.admin_type != SUPER_ADMIN and contest.created_by != request.user:
|
||
return error_response(u"比赛不存在")
|
||
contest_problem.title = data["title"]
|
||
contest_problem.description = data["description"]
|
||
contest_problem.input_description = data["input_description"]
|
||
contest_problem.output_description = data["output_description"]
|
||
contest_problem.test_case_id = data["test_case_id"]
|
||
contest_problem.time_limit = data["time_limit"]
|
||
contest_problem.memory_limit = data["memory_limit"]
|
||
contest_problem.samples = json.dumps(data["samples"])
|
||
contest_problem.hint = data["hint"]
|
||
contest_problem.visible = data["visible"]
|
||
contest_problem.sort_index = data["sort_index"]
|
||
contest_problem.score = data["score"]
|
||
contest_problem.save()
|
||
return success_response(ContestProblemSerializer(contest_problem).data)
|
||
else:
|
||
return serializer_invalid_response(serializer)
|
||
|
||
def get(self, request):
|
||
"""
|
||
比赛题目分页json api接口
|
||
---
|
||
response_serializer: ContestProblemSerializer
|
||
"""
|
||
contest_problem_id = request.GET.get("contest_problem_id", None)
|
||
if contest_problem_id:
|
||
try:
|
||
contest_problem = ContestProblem.objects.get(id=contest_problem_id)
|
||
if request.user.admin_type != SUPER_ADMIN:
|
||
contest_problem = contest_problem.get(created_by=request.user)
|
||
return success_response(ContestProblemSerializer(contest_problem).data)
|
||
except ContestProblem.DoesNotExist:
|
||
return error_response(u"比赛题目不存在")
|
||
|
||
contest_problems = ContestProblem.objects.all().order_by("sort_index")
|
||
if request.user.admin_type != SUPER_ADMIN:
|
||
contest_problems = contest_problems.filter(created_by=request.user).order_by("sort_index")
|
||
visible = request.GET.get("visible", None)
|
||
if visible:
|
||
contest_problems = contest_problems.filter(visible=(visible == "true"))
|
||
keyword = request.GET.get("keyword", None)
|
||
if keyword:
|
||
contest_problems = contest_problems.filter(Q(title__contains=keyword) |
|
||
Q(description__contains=keyword))
|
||
contest_id = request.GET.get("contest_id", None)
|
||
if contest_id:
|
||
contest_problems = contest_problems.filter(contest__id=contest_id).order_by("sort_index")
|
||
|
||
return paginate(request, contest_problems, ContestProblemSerializer)
|
||
|
||
|
||
class ContestPasswordVerifyAPIView(APIView):
|
||
@login_required
|
||
def post(self, request):
|
||
serializer = ContestPasswordVerifySerializer(data=request.data)
|
||
if serializer.is_valid():
|
||
data = request.data
|
||
try:
|
||
contest = Contest.objects.get(id=data["contest_id"], contest_type=PASSWORD_PROTECTED_CONTEST)
|
||
except Contest.DoesNotExist:
|
||
return error_response(u"比赛不存在")
|
||
|
||
if data["password"] != contest.password:
|
||
return error_response(u"密码错误")
|
||
else:
|
||
if "contests" not in request.session:
|
||
request.session["contests"] = []
|
||
request.session["contests"].append(int(data["contest_id"]))
|
||
# https://docs.djangoproject.com/en/dev/topics/http/sessions/#when-sessions-are-saved
|
||
request.session.modified = True
|
||
|
||
return success_response(True)
|
||
else:
|
||
return serializer_invalid_response(serializer)
|
||
|
||
|
||
@check_user_contest_permission
|
||
def contest_page(request, contest_id):
|
||
"""
|
||
单个比赛的详情页
|
||
"""
|
||
contest = Contest.objects.get(id=contest_id)
|
||
|
||
return render(request, "oj/contest/contest_index.html", {"contest": contest})
|
||
|
||
|
||
@check_user_contest_permission
|
||
def contest_problem_page(request, contest_id, contest_problem_id):
|
||
"""
|
||
单个比赛题目的详情页
|
||
"""
|
||
contest = Contest.objects.get(id=contest_id)
|
||
try:
|
||
contest_problem = ContestProblem.objects.get(id=contest_problem_id, visible=True)
|
||
except ContestProblem.DoesNotExist:
|
||
return error_page(request, u"比赛题目不存在")
|
||
warning = u"您已经提交过本题的正确答案，重复提交可能造成时间累计。"
|
||
show_warning = False
|
||
try:
|
||
submission = ContestSubmission.objects.get(user=request.user, contest=contest, problem=contest_problem)
|
||
show_warning = submission.ac
|
||
except ContestSubmission.DoesNotExist:
|
||
pass
|
||
|
||
# 已经结束
|
||
if contest.status == CONTEST_ENDED:
|
||
show_warning = True
|
||
warning = u"比赛已经结束"
|
||
elif contest.status == CONTEST_NOT_START:
|
||
show_warning = True
|
||
warning = u"比赛没有开始，您是管理员，可以提交和测试题目，但是目前的提交不会计入排名。"
|
||
|
||
show_submit_code_area = False
|
||
if contest.status == CONTEST_UNDERWAY:
|
||
show_submit_code_area = True
|
||
if request.user.admin_type == SUPER_ADMIN or request.user == contest.created_by:
|
||
show_submit_code_area = True
|
||
|
||
return render(request, "oj/contest/contest_problem.html", {"contest_problem": contest_problem, "contest": contest,
|
||
"samples": json.loads(contest_problem.samples),
|
||
"show_warning": show_warning, "warning": warning,
|
||
"show_submit_code_area": show_submit_code_area})
|
||
|
||
|
||
@check_user_contest_permission
|
||
def contest_problems_list_page(request, contest_id):
|
||
"""
|
||
比赛所有题目的列表页
|
||
"""
|
||
contest = Contest.objects.get(id=contest_id)
|
||
contest_problems = ContestProblem.objects.filter(contest=contest).select_related("contest").order_by("sort_index")
|
||
return render(request, "oj/contest/contest_problems_list.html", {"contest_problems": contest_problems,
|
||
"contest": {"id": contest_id}})
|
||
|
||
|
||
def contest_list_page(request, page=1):
|
||
"""
|
||
所有比赛的列表页
|
||
"""
|
||
# 正常情况
|
||
contests = Contest.objects.filter(visible=True).order_by("-create_time")
|
||
|
||
# 搜索的情况
|
||
keyword = request.GET.get("keyword", None)
|
||
if keyword:
|
||
contests = contests.filter(Q(title__contains=keyword) | Q(description__contains=keyword))
|
||
|
||
# 筛选我能参加的比赛
|
||
join = request.GET.get("join", None)
|
||
if request.user.is_authenticated and join:
|
||
contests = contests.filter(Q(contest_type__in=[1, 2]) | Q(groups__in=request.user.group_set.all())). \
|
||
filter(end_time__gt=datetime.datetime.now(), start_time__lt=datetime.datetime.now())
|
||
paginator = Paginator(contests, 20)
|
||
try:
|
||
current_page = paginator.page(int(page))
|
||
except Exception:
|
||
return error_page(request, u"不存在的页码")
|
||
|
||
previous_page = next_page = None
|
||
|
||
try:
|
||
previous_page = current_page.previous_page_number()
|
||
except Exception:
|
||
pass
|
||
|
||
try:
|
||
next_page = current_page.next_page_number()
|
||
except Exception:
|
||
pass
|
||
|
||
return render(request, "oj/contest/contest_list.html",
|
||
{"contests": current_page, "page": int(page),
|
||
"previous_page": previous_page, "next_page": next_page,
|
||
"keyword": keyword, "join": join})
|
||
|
||
|
||
@check_user_contest_permission
|
||
def contest_rank_page(request, contest_id):
|
||
contest = Contest.objects.get(id=contest_id)
|
||
contest_problems = ContestProblem.objects.filter(contest=contest).order_by("sort_index")
|
||
|
||
r = get_cache_redis()
|
||
cache_key = str(contest_id) + "_rank_cache"
|
||
rank = r.get(cache_key)
|
||
|
||
if not rank:
|
||
rank = ContestRank.objects.filter(contest_id=contest_id).\
|
||
select_related("user").\
|
||
order_by("-total_ac_number", "total_time").\
|
||
values("id", "user__id", "user__username", "user__real_name", "contest_id", "submission_info",
|
||
"total_submission_number", "total_ac_number", "total_time")
|
||
r.set(cache_key, json.dumps([dict(item) for item in rank]))
|
||
else:
|
||
rank = json.loads(rank)
|
||
|
||
try:
|
||
paging_rank = paginate_data(request, rank, None)
|
||
if request.GET.get("paging", None):
|
||
rank = paging_rank["results"]
|
||
else:
|
||
rank = paging_rank
|
||
except Exception as e:
|
||
return error_page(request, e.message)
|
||
|
||
if request.GET.get("paging", None):
|
||
paging_info = paging_rank
|
||
paging_info["offset"] = paging_rank["page_size"] * (int(paging_rank["current_page"]) - 1)
|
||
else:
|
||
paging_info = {"previous_page": None, "next_page": None, "count": 0, "total_page": 0, "offset": 0}
|
||
|
||
return render(request, "oj/contest/contest_rank.html",
|
||
{"rank": rank, "contest": contest,
|
||
"contest_problems": contest_problems,
|
||
"paging_info": paging_info,
|
||
"auto_refresh": request.GET.get("auto_refresh", None) == "true",
|
||
"show_real_name": request.GET.get("show_real_name", None) == "true",})
|
||
|
||
|
||
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):
|
||
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")
|
||
return success_response({"start": int((contest.start_time - now()).total_seconds() * 1000),
|
||
"end": int((contest.end_time - now()).total_seconds() * 1000),
|
||
"status": contest.status}) |