702 lines
30 KiB
Python
702 lines
30 KiB
Python
import hashlib
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import json
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import os
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import shutil
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import tempfile
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import zipfile
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from wsgiref.util import FileWrapper
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from django.conf import settings
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from django.db import transaction
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from django.db.models import Q
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from django.http import StreamingHttpResponse, FileResponse
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from account.decorators import problem_permission_required, ensure_created_by
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from contest.models import Contest, ContestStatus
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from fps.parser import FPSHelper, FPSParser
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from judge.dispatcher import SPJCompiler
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from options.options import SysOptions
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from submission.models import Submission, JudgeStatus
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from utils.api import APIView, CSRFExemptAPIView, validate_serializer, APIError
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from utils.constants import Difficulty
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from utils.shortcuts import rand_str, natural_sort_key
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from utils.tasks import delete_files
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from ..models import Problem, ProblemRuleType, ProblemTag
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from ..serializers import (CreateContestProblemSerializer, CompileSPJSerializer,
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CreateProblemSerializer, EditProblemSerializer, EditContestProblemSerializer,
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ProblemAdminSerializer, TestCaseUploadForm, ContestProblemMakePublicSerializer,
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AddContestProblemSerializer, ExportProblemSerializer,
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ExportProblemRequestSerialzier, UploadProblemForm, ImportProblemSerializer,
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FPSProblemSerializer)
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from ..utils import TEMPLATE_BASE, build_problem_template
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class TestCaseZipProcessor(object):
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def process_zip(self, uploaded_zip_file, spj, dir=""):
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try:
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zip_file = zipfile.ZipFile(uploaded_zip_file, "r")
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except zipfile.BadZipFile:
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raise APIError("Bad zip file")
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name_list = zip_file.namelist()
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test_case_list = self.filter_name_list(name_list, spj=spj, dir=dir)
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if not test_case_list:
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raise APIError("Empty file")
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test_case_id = rand_str()
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test_case_dir = os.path.join(settings.TEST_CASE_DIR, test_case_id)
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os.mkdir(test_case_dir)
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os.chmod(test_case_dir, 0o710)
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size_cache = {}
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md5_cache = {}
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for item in test_case_list:
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with open(os.path.join(test_case_dir, item), "wb") as f:
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content = zip_file.read(f"{dir}{item}").replace(b"\r\n", b"\n")
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size_cache[item] = len(content)
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if item.endswith(".out"):
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md5_cache[item] = hashlib.md5(content.rstrip()).hexdigest()
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f.write(content)
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test_case_info = {"spj": spj, "test_cases": {}}
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info = []
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if spj:
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for index, item in enumerate(test_case_list):
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data = {"input_name": item, "input_size": size_cache[item]}
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info.append(data)
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test_case_info["test_cases"][str(index + 1)] = data
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else:
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# ["1.in", "1.out", "2.in", "2.out"] => [("1.in", "1.out"), ("2.in", "2.out")]
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test_case_list = zip(*[test_case_list[i::2] for i in range(2)])
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for index, item in enumerate(test_case_list):
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data = {"stripped_output_md5": md5_cache[item[1]],
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"input_size": size_cache[item[0]],
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"output_size": size_cache[item[1]],
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"input_name": item[0],
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"output_name": item[1]}
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info.append(data)
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test_case_info["test_cases"][str(index + 1)] = data
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with open(os.path.join(test_case_dir, "info"), "w", encoding="utf-8") as f:
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f.write(json.dumps(test_case_info, indent=4))
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for item in os.listdir(test_case_dir):
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os.chmod(os.path.join(test_case_dir, item), 0o640)
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return info, test_case_id
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def filter_name_list(self, name_list, spj, dir=""):
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ret = []
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prefix = 1
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if spj:
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while True:
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in_name = f"{prefix}.in"
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if f"{dir}{in_name}" in name_list:
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ret.append(in_name)
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prefix += 1
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continue
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else:
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return sorted(ret, key=natural_sort_key)
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else:
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while True:
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in_name = f"{prefix}.in"
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out_name = f"{prefix}.out"
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if f"{dir}{in_name}" in name_list and f"{dir}{out_name}" in name_list:
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ret.append(in_name)
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ret.append(out_name)
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prefix += 1
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continue
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else:
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return sorted(ret, key=natural_sort_key)
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class TestCaseAPI(CSRFExemptAPIView, TestCaseZipProcessor):
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request_parsers = ()
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def get(self, request):
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problem_id = request.GET.get("problem_id")
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if not problem_id:
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return self.error("Parameter error, problem_id is required")
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try:
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problem = Problem.objects.get(id=problem_id)
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except Problem.DoesNotExist:
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return self.error("Problem does not exists")
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if problem.contest:
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ensure_created_by(problem.contest, request.user)
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else:
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ensure_created_by(problem, request.user)
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test_case_dir = os.path.join(settings.TEST_CASE_DIR, problem.test_case_id)
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if not os.path.isdir(test_case_dir):
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return self.error("Test case does not exists")
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name_list = self.filter_name_list(os.listdir(test_case_dir), problem.spj)
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name_list.append("info")
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file_name = os.path.join(test_case_dir, problem.test_case_id + ".zip")
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with zipfile.ZipFile(file_name, "w") as file:
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for test_case in name_list:
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file.write(f"{test_case_dir}/{test_case}", test_case)
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response = StreamingHttpResponse(FileWrapper(open(file_name, "rb")),
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content_type="application/octet-stream")
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response["Content-Disposition"] = f"attachment; filename=problem_{problem.id}_test_cases.zip"
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response["Content-Length"] = os.path.getsize(file_name)
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return response
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def post(self, request):
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form = TestCaseUploadForm(request.POST, request.FILES)
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if form.is_valid():
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spj = form.cleaned_data["spj"] == "true"
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file = form.cleaned_data["file"]
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else:
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return self.error("Upload failed")
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zip_file = f"/tmp/{rand_str()}.zip"
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with open(zip_file, "wb") as f:
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for chunk in file:
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f.write(chunk)
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info, test_case_id = self.process_zip(zip_file, spj=spj)
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os.remove(zip_file)
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return self.success({"id": test_case_id, "info": info, "spj": spj})
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class CompileSPJAPI(APIView):
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@validate_serializer(CompileSPJSerializer)
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def post(self, request):
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data = request.data
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spj_version = rand_str(8)
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error = SPJCompiler(data["spj_code"], spj_version, data["spj_language"]).compile_spj()
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if error:
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return self.error(error)
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else:
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return self.success()
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class ProblemBase(APIView):
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def common_checks(self, request):
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data = request.data
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if data["spj"]:
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if not data["spj_language"] or not data["spj_code"]:
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return "Invalid spj"
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if not data["spj_compile_ok"]:
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return "SPJ code must be compiled successfully"
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data["spj_version"] = hashlib.md5(
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(data["spj_language"] + ":" + data["spj_code"]).encode("utf-8")).hexdigest()
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else:
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data["spj_language"] = None
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data["spj_code"] = None
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if data["rule_type"] == ProblemRuleType.OI:
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total_score = 0
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for item in data["test_case_score"]:
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if item["score"] <= 0:
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return "Invalid score"
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else:
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total_score += item["score"]
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data["total_score"] = total_score
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data["languages"] = list(data["languages"])
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class ProblemAPI(ProblemBase):
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@problem_permission_required
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@validate_serializer(CreateProblemSerializer)
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def post(self, request):
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data = request.data
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_id = data["_id"]
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if not _id:
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return self.error("Display ID is required")
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if Problem.objects.filter(_id=_id, contest_id__isnull=True).exists():
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return self.error("Display ID already exists")
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error_info = self.common_checks(request)
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if error_info:
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return self.error(error_info)
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# todo check filename and score info
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tags = data.pop("tags")
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data["created_by"] = request.user
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problem = Problem.objects.create(**data)
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for item in tags:
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try:
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tag = ProblemTag.objects.get(name=item)
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except ProblemTag.DoesNotExist:
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tag = ProblemTag.objects.create(name=item)
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problem.tags.add(tag)
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return self.success(ProblemAdminSerializer(problem).data)
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@problem_permission_required
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def get(self, request):
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problem_id = request.GET.get("id")
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rule_type = request.GET.get("rule_type")
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user = request.user
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if problem_id:
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try:
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problem = Problem.objects.get(id=problem_id)
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ensure_created_by(problem, request.user)
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return self.success(ProblemAdminSerializer(problem).data)
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except Problem.DoesNotExist:
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return self.error("Problem does not exist")
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problems = Problem.objects.filter(contest_id__isnull=True).order_by("-create_time")
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if rule_type:
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if rule_type not in ProblemRuleType.choices():
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return self.error("Invalid rule_type")
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else:
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problems = problems.filter(rule_type=rule_type)
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keyword = request.GET.get("keyword", "").strip()
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if keyword:
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problems = problems.filter(Q(title__icontains=keyword) | Q(_id__icontains=keyword))
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if not user.can_mgmt_all_problem():
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problems = problems.filter(created_by=user)
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return self.success(self.paginate_data(request, problems, ProblemAdminSerializer))
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@problem_permission_required
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@validate_serializer(EditProblemSerializer)
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def put(self, request):
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data = request.data
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problem_id = data.pop("id")
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try:
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problem = Problem.objects.get(id=problem_id)
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ensure_created_by(problem, request.user)
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except Problem.DoesNotExist:
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return self.error("Problem does not exist")
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_id = data["_id"]
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if not _id:
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return self.error("Display ID is required")
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if Problem.objects.exclude(id=problem_id).filter(_id=_id, contest_id__isnull=True).exists():
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return self.error("Display ID already exists")
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error_info = self.common_checks(request)
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if error_info:
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return self.error(error_info)
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# todo check filename and score info
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tags = data.pop("tags")
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data["languages"] = list(data["languages"])
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for k, v in data.items():
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setattr(problem, k, v)
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problem.save()
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problem.tags.remove(*problem.tags.all())
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for tag in tags:
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try:
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tag = ProblemTag.objects.get(name=tag)
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except ProblemTag.DoesNotExist:
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tag = ProblemTag.objects.create(name=tag)
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problem.tags.add(tag)
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return self.success()
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@problem_permission_required
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def delete(self, request):
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id = request.GET.get("id")
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if not id:
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return self.error("Invalid parameter, id is required")
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try:
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problem = Problem.objects.get(id=id, contest_id__isnull=True)
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except Problem.DoesNotExist:
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return self.error("Problem does not exists")
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ensure_created_by(problem, request.user)
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d = os.path.join(settings.TEST_CASE_DIR, problem.test_case_id)
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if os.path.isdir(d):
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shutil.rmtree(d, ignore_errors=True)
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problem.delete()
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return self.success()
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class ContestProblemAPI(ProblemBase):
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@validate_serializer(CreateContestProblemSerializer)
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def post(self, request):
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data = request.data
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try:
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contest = Contest.objects.get(id=data.pop("contest_id"))
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ensure_created_by(contest, request.user)
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except Contest.DoesNotExist:
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return self.error("Contest does not exist")
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if data["rule_type"] != contest.rule_type:
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return self.error("Invalid rule type")
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_id = data["_id"]
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if not _id:
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return self.error("Display ID is required")
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if Problem.objects.filter(_id=_id, contest=contest).exists():
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return self.error("Duplicate Display id")
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error_info = self.common_checks(request)
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if error_info:
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return self.error(error_info)
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# todo check filename and score info
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data["contest"] = contest
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tags = data.pop("tags")
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data["created_by"] = request.user
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problem = Problem.objects.create(**data)
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for item in tags:
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try:
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tag = ProblemTag.objects.get(name=item)
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except ProblemTag.DoesNotExist:
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tag = ProblemTag.objects.create(name=item)
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problem.tags.add(tag)
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return self.success(ProblemAdminSerializer(problem).data)
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def get(self, request):
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problem_id = request.GET.get("id")
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contest_id = request.GET.get("contest_id")
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user = request.user
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if problem_id:
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try:
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problem = Problem.objects.get(id=problem_id)
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ensure_created_by(problem.contest, user)
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except Problem.DoesNotExist:
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return self.error("Problem does not exist")
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return self.success(ProblemAdminSerializer(problem).data)
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if not contest_id:
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return self.error("Contest id is required")
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try:
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contest = Contest.objects.get(id=contest_id)
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ensure_created_by(contest, user)
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except Contest.DoesNotExist:
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return self.error("Contest does not exist")
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problems = Problem.objects.filter(contest=contest).order_by("-create_time")
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if user.is_admin():
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problems = problems.filter(contest__created_by=user)
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keyword = request.GET.get("keyword")
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if keyword:
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problems = problems.filter(title__contains=keyword)
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return self.success(self.paginate_data(request, problems, ProblemAdminSerializer))
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@validate_serializer(EditContestProblemSerializer)
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def put(self, request):
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data = request.data
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user = request.user
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try:
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contest = Contest.objects.get(id=data.pop("contest_id"))
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ensure_created_by(contest, user)
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except Contest.DoesNotExist:
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return self.error("Contest does not exist")
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if data["rule_type"] != contest.rule_type:
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return self.error("Invalid rule type")
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problem_id = data.pop("id")
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try:
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problem = Problem.objects.get(id=problem_id, contest=contest)
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except Problem.DoesNotExist:
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return self.error("Problem does not exist")
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_id = data["_id"]
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if not _id:
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return self.error("Display ID is required")
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if Problem.objects.exclude(id=problem_id).filter(_id=_id, contest=contest).exists():
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return self.error("Display ID already exists")
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error_info = self.common_checks(request)
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if error_info:
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return self.error(error_info)
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# todo check filename and score info
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tags = data.pop("tags")
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data["languages"] = list(data["languages"])
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for k, v in data.items():
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setattr(problem, k, v)
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problem.save()
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problem.tags.remove(*problem.tags.all())
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for tag in tags:
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try:
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tag = ProblemTag.objects.get(name=tag)
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except ProblemTag.DoesNotExist:
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tag = ProblemTag.objects.create(name=tag)
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problem.tags.add(tag)
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return self.success()
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def delete(self, request):
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id = request.GET.get("id")
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if not id:
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return self.error("Invalid parameter, id is required")
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try:
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problem = Problem.objects.get(id=id, contest_id__isnull=False)
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except Problem.DoesNotExist:
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return self.error("Problem does not exists")
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ensure_created_by(problem.contest, request.user)
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if Submission.objects.filter(problem=problem).exists():
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return self.error("Can't delete the problem as it has submissions")
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d = os.path.join(settings.TEST_CASE_DIR, problem.test_case_id)
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if os.path.isdir(d):
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shutil.rmtree(d, ignore_errors=True)
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problem.delete()
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return self.success()
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class MakeContestProblemPublicAPIView(APIView):
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@validate_serializer(ContestProblemMakePublicSerializer)
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@problem_permission_required
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def post(self, request):
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data = request.data
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display_id = data.get("display_id")
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if Problem.objects.filter(_id=display_id, contest_id__isnull=True).exists():
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return self.error("Duplicate display ID")
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try:
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problem = Problem.objects.get(id=data["id"])
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except Problem.DoesNotExist:
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return self.error("Problem does not exist")
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if not problem.contest or problem.is_public:
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return self.error("Already be a public problem")
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problem.is_public = True
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problem.save()
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# https://docs.djangoproject.com/en/1.11/topics/db/queries/#copying-model-instances
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tags = problem.tags.all()
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problem.pk = None
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problem.contest = None
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problem._id = display_id
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problem.visible = False
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problem.submission_number = problem.accepted_number = 0
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problem.statistic_info = {}
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problem.save()
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problem.tags.set(tags)
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return self.success()
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class AddContestProblemAPI(APIView):
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@validate_serializer(AddContestProblemSerializer)
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def post(self, request):
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data = request.data
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try:
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contest = Contest.objects.get(id=data["contest_id"])
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problem = Problem.objects.get(id=data["problem_id"])
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except (Contest.DoesNotExist, Problem.DoesNotExist):
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return self.error("Contest or Problem does not exist")
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if contest.status == ContestStatus.CONTEST_ENDED:
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return self.error("Contest has ended")
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if Problem.objects.filter(contest=contest, _id=data["display_id"]).exists():
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return self.error("Duplicate display id in this contest")
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tags = problem.tags.all()
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problem.pk = None
|
|
problem.contest = contest
|
|
problem.is_public = True
|
|
problem.visible = True
|
|
problem._id = request.data["display_id"]
|
|
problem.submission_number = problem.accepted_number = 0
|
|
problem.statistic_info = {}
|
|
problem.save()
|
|
problem.tags.set(tags)
|
|
return self.success()
|
|
|
|
|
|
class ExportProblemAPI(APIView):
|
|
def choose_answers(self, user, problem):
|
|
ret = []
|
|
for item in problem.languages:
|
|
submission = Submission.objects.filter(problem=problem,
|
|
user_id=user.id,
|
|
language=item,
|
|
result=JudgeStatus.ACCEPTED).order_by("-create_time").first()
|
|
if submission:
|
|
ret.append({"language": submission.language, "code": submission.code})
|
|
return ret
|
|
|
|
def process_one_problem(self, zip_file, user, problem, index):
|
|
info = ExportProblemSerializer(problem).data
|
|
info["answers"] = self.choose_answers(user, problem=problem)
|
|
compression = zipfile.ZIP_DEFLATED
|
|
zip_file.writestr(zinfo_or_arcname=f"{index}/problem.json",
|
|
data=json.dumps(info, indent=4),
|
|
compress_type=compression)
|
|
problem_test_case_dir = os.path.join(settings.TEST_CASE_DIR, problem.test_case_id)
|
|
with open(os.path.join(problem_test_case_dir, "info")) as f:
|
|
info = json.load(f)
|
|
for k, v in info["test_cases"].items():
|
|
zip_file.write(filename=os.path.join(problem_test_case_dir, v["input_name"]),
|
|
arcname=f"{index}/testcase/{v['input_name']}",
|
|
compress_type=compression)
|
|
if not info["spj"]:
|
|
zip_file.write(filename=os.path.join(problem_test_case_dir, v["output_name"]),
|
|
arcname=f"{index}/testcase/{v['output_name']}",
|
|
compress_type=compression)
|
|
|
|
@validate_serializer(ExportProblemRequestSerialzier)
|
|
def get(self, request):
|
|
problems = Problem.objects.filter(id__in=request.data["problem_id"])
|
|
for problem in problems:
|
|
if problem.contest:
|
|
ensure_created_by(problem.contest, request.user)
|
|
else:
|
|
ensure_created_by(problem, request.user)
|
|
path = f"/tmp/{rand_str()}.zip"
|
|
with zipfile.ZipFile(path, "w") as zip_file:
|
|
for index, problem in enumerate(problems):
|
|
self.process_one_problem(zip_file=zip_file, user=request.user, problem=problem, index=index + 1)
|
|
delete_files.send_with_options(args=(path,), delay=300_000)
|
|
resp = FileResponse(open(path, "rb"))
|
|
resp["Content-Type"] = "application/zip"
|
|
resp["Content-Disposition"] = f"attachment;filename=problem-export.zip"
|
|
return resp
|
|
|
|
|
|
class ImportProblemAPI(CSRFExemptAPIView, TestCaseZipProcessor):
|
|
request_parsers = ()
|
|
|
|
def post(self, request):
|
|
form = UploadProblemForm(request.POST, request.FILES)
|
|
if form.is_valid():
|
|
file = form.cleaned_data["file"]
|
|
tmp_file = f"/tmp/{rand_str()}.zip"
|
|
with open(tmp_file, "wb") as f:
|
|
for chunk in file:
|
|
f.write(chunk)
|
|
else:
|
|
return self.error("Upload failed")
|
|
|
|
count = 0
|
|
with zipfile.ZipFile(tmp_file, "r") as zip_file:
|
|
name_list = zip_file.namelist()
|
|
for item in name_list:
|
|
if "/problem.json" in item:
|
|
count += 1
|
|
with transaction.atomic():
|
|
for i in range(1, count + 1):
|
|
with zip_file.open(f"{i}/problem.json") as f:
|
|
problem_info = json.load(f)
|
|
serializer = ImportProblemSerializer(data=problem_info)
|
|
if not serializer.is_valid():
|
|
return self.error(f"Invalid problem format, error is {serializer.errors}")
|
|
else:
|
|
problem_info = serializer.data
|
|
for item in problem_info["template"].keys():
|
|
if item not in SysOptions.language_names:
|
|
return self.error(f"Unsupported language {item}")
|
|
|
|
problem_info["display_id"] = problem_info["display_id"][:24]
|
|
for k, v in problem_info["template"].items():
|
|
problem_info["template"][k] = build_problem_template(v["prepend"], v["template"],
|
|
v["append"])
|
|
|
|
spj = problem_info["spj"] is not None
|
|
rule_type = problem_info["rule_type"]
|
|
test_case_score = problem_info["test_case_score"]
|
|
|
|
# process test case
|
|
_, test_case_id = self.process_zip(tmp_file, spj=spj, dir=f"{i}/testcase/")
|
|
|
|
problem_obj = Problem.objects.create(_id=problem_info["display_id"],
|
|
title=problem_info["title"],
|
|
description=problem_info["description"]["value"],
|
|
input_description=problem_info["input_description"][
|
|
"value"],
|
|
output_description=problem_info["output_description"][
|
|
"value"],
|
|
hint=problem_info["hint"]["value"],
|
|
test_case_score=test_case_score if test_case_score else [],
|
|
time_limit=problem_info["time_limit"],
|
|
memory_limit=problem_info["memory_limit"],
|
|
samples=problem_info["samples"],
|
|
template=problem_info["template"],
|
|
rule_type=problem_info["rule_type"],
|
|
source=problem_info["source"],
|
|
spj=spj,
|
|
spj_code=problem_info["spj"]["code"] if spj else None,
|
|
spj_language=problem_info["spj"][
|
|
"language"] if spj else None,
|
|
spj_version=rand_str(8) if spj else "",
|
|
languages=SysOptions.language_names,
|
|
created_by=request.user,
|
|
visible=False,
|
|
difficulty=Difficulty.MID,
|
|
total_score=sum(item["score"] for item in test_case_score)
|
|
if rule_type == ProblemRuleType.OI else 0,
|
|
test_case_id=test_case_id
|
|
)
|
|
for tag_name in problem_info["tags"]:
|
|
tag_obj, _ = ProblemTag.objects.get_or_create(name=tag_name)
|
|
problem_obj.tags.add(tag_obj)
|
|
return self.success({"import_count": count})
|
|
|
|
|
|
class FPSProblemImport(CSRFExemptAPIView):
|
|
request_parsers = ()
|
|
|
|
def _create_problem(self, problem_data, creator):
|
|
if problem_data["time_limit"]["unit"] == "ms":
|
|
time_limit = problem_data["time_limit"]["value"]
|
|
else:
|
|
time_limit = problem_data["time_limit"]["value"] * 1000
|
|
template = {}
|
|
prepend = {}
|
|
append = {}
|
|
for t in problem_data["prepend"]:
|
|
prepend[t["language"]] = t["code"]
|
|
for t in problem_data["append"]:
|
|
append[t["language"]] = t["code"]
|
|
for t in problem_data["template"]:
|
|
our_lang = lang = t["language"]
|
|
if lang == "Python":
|
|
our_lang = "Python3"
|
|
template[our_lang] = TEMPLATE_BASE.format(prepend.get(lang, ""), t["code"], append.get(lang, ""))
|
|
spj = problem_data["spj"] is not None
|
|
Problem.objects.create(_id=f"fps-{rand_str(4)}",
|
|
title=problem_data["title"],
|
|
description=problem_data["description"],
|
|
input_description=problem_data["input"],
|
|
output_description=problem_data["output"],
|
|
hint=problem_data["hint"],
|
|
test_case_score=problem_data["test_case_score"],
|
|
time_limit=time_limit,
|
|
memory_limit=problem_data["memory_limit"]["value"],
|
|
samples=problem_data["samples"],
|
|
template=template,
|
|
rule_type=ProblemRuleType.ACM,
|
|
source=problem_data.get("source", ""),
|
|
spj=spj,
|
|
spj_code=problem_data["spj"]["code"] if spj else None,
|
|
spj_language=problem_data["spj"]["language"] if spj else None,
|
|
spj_version=rand_str(8) if spj else "",
|
|
visible=False,
|
|
languages=SysOptions.language_names,
|
|
created_by=creator,
|
|
difficulty=Difficulty.MID,
|
|
test_case_id=problem_data["test_case_id"])
|
|
|
|
def post(self, request):
|
|
form = UploadProblemForm(request.POST, request.FILES)
|
|
if form.is_valid():
|
|
file = form.cleaned_data["file"]
|
|
with tempfile.NamedTemporaryFile("wb") as tf:
|
|
for chunk in file.chunks(4096):
|
|
tf.file.write(chunk)
|
|
problems = FPSParser(tf.name).parse()
|
|
else:
|
|
return self.error("Parse upload file error")
|
|
|
|
helper = FPSHelper()
|
|
with transaction.atomic():
|
|
for _problem in problems:
|
|
test_case_id = rand_str()
|
|
test_case_dir = os.path.join(settings.TEST_CASE_DIR, test_case_id)
|
|
os.mkdir(test_case_dir)
|
|
score = []
|
|
for item in helper.save_test_case(_problem, test_case_dir)["test_cases"].values():
|
|
score.append({"score": 0, "input_name": item["input_name"],
|
|
"output_name": item.get("output_name")})
|
|
problem_data = helper.save_image(_problem, settings.UPLOAD_DIR, settings.UPLOAD_PREFIX)
|
|
s = FPSProblemSerializer(data=problem_data)
|
|
if not s.is_valid():
|
|
return self.error(f"Parse FPS file error: {s.errors}")
|
|
problem_data = s.data
|
|
problem_data["test_case_id"] = test_case_id
|
|
problem_data["test_case_score"] = score
|
|
self._create_problem(problem_data, request.user)
|
|
return self.success({"import_count": len(problems)})
|