241 lines
9.7 KiB
Python
241 lines
9.7 KiB
Python
import json
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import mimetypes
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import os
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from itertools import chain
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from zipfile import BadZipfile, ZipFile
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from django.conf import settings
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from django.contrib.auth.decorators import login_required
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from django.contrib.auth.mixins import LoginRequiredMixin
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from django.core.exceptions import ValidationError
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from django.forms import BaseModelFormSet, HiddenInput, ModelForm, NumberInput, Select, formset_factory
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from django.http import Http404, HttpResponse, HttpResponseRedirect
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from django.shortcuts import get_object_or_404, render
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from django.urls import reverse
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from django.utils.html import escape, format_html
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from django.utils.safestring import mark_safe
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from django.utils.translation import gettext as _
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from django.views.generic import DetailView
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from judge.highlight_code import highlight_code
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from judge.models import Problem, ProblemData, ProblemTestCase, Submission, problem_data_storage
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from judge.utils.problem_data import ProblemDataCompiler
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from judge.utils.unicode import utf8text
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from judge.utils.views import TitleMixin
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from judge.views.problem import ProblemMixin
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mimetypes.init()
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mimetypes.add_type('application/x-yaml', '.yml')
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def checker_args_cleaner(self):
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data = self.cleaned_data['checker_args']
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if not data or data.isspace():
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return ''
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try:
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if not isinstance(json.loads(data), dict):
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raise ValidationError(_('Checker arguments must be a JSON object'))
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except ValueError:
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raise ValidationError(_('Checker arguments is invalid JSON'))
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return data
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class ProblemDataForm(ModelForm):
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def clean_zipfile(self):
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if hasattr(self, 'zip_valid') and not self.zip_valid:
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raise ValidationError(_('Your zip file is invalid!'))
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return self.cleaned_data['zipfile']
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clean_checker_args = checker_args_cleaner
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class Meta:
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model = ProblemData
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fields = ['zipfile', 'generator', 'output_limit', 'output_prefix', 'checker', 'checker_args']
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widgets = {
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'checker_args': HiddenInput,
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}
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class ProblemCaseForm(ModelForm):
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clean_checker_args = checker_args_cleaner
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class Meta:
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model = ProblemTestCase
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fields = ('order', 'type', 'input_file', 'output_file', 'points',
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'is_pretest', 'output_limit', 'output_prefix', 'checker', 'checker_args', 'generator_args')
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widgets = {
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'generator_args': HiddenInput,
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'type': Select(attrs={'style': 'width: 100%'}),
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'points': NumberInput(attrs={'style': 'width: 4em'}),
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'output_prefix': NumberInput(attrs={'style': 'width: 4.5em'}),
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'output_limit': NumberInput(attrs={'style': 'width: 6em'}),
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'checker_args': HiddenInput,
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}
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class ProblemCaseFormSet(formset_factory(ProblemCaseForm, formset=BaseModelFormSet, extra=1, max_num=1,
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can_delete=True)):
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model = ProblemTestCase
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def __init__(self, *args, **kwargs):
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self.valid_files = kwargs.pop('valid_files', None)
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super(ProblemCaseFormSet, self).__init__(*args, **kwargs)
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def _construct_form(self, i, **kwargs):
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form = super(ProblemCaseFormSet, self)._construct_form(i, **kwargs)
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form.valid_files = self.valid_files
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return form
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class ProblemManagerMixin(LoginRequiredMixin, ProblemMixin, DetailView):
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def get_object(self, queryset=None):
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problem = super(ProblemManagerMixin, self).get_object(queryset)
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if problem.is_manually_managed:
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raise Http404()
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if self.request.user.is_superuser or problem.is_editable_by(self.request.user):
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return problem
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raise Http404()
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class ProblemSubmissionDiff(TitleMixin, ProblemMixin, DetailView):
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template_name = 'problem/submission-diff.html'
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def get_title(self):
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return _('Comparing submissions for {0}').format(self.object.name)
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def get_content_title(self):
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return format_html(_('Comparing submissions for <a href="{1}">{0}</a>'), self.object.name,
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reverse('problem_detail', args=[self.object.code]))
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def get_object(self, queryset=None):
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problem = super(ProblemSubmissionDiff, self).get_object(queryset)
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if self.request.user.is_superuser or problem.is_editable_by(self.request.user):
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return problem
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raise Http404()
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def get_context_data(self, **kwargs):
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context = super(ProblemSubmissionDiff, self).get_context_data(**kwargs)
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try:
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ids = self.request.GET.getlist('id')
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subs = Submission.objects.filter(id__in=ids)
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except ValueError:
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raise Http404
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if not subs:
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raise Http404
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context['submissions'] = subs
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# If we have associated data we can do better than just guess
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data = ProblemTestCase.objects.filter(dataset=self.object, type='C')
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if data:
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num_cases = data.count()
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else:
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num_cases = subs.first().test_cases.count()
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context['num_cases'] = num_cases
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return context
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class ProblemDataView(TitleMixin, ProblemManagerMixin):
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template_name = 'problem/data.html'
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def get_title(self):
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return _('Editing data for {0}').format(self.object.name)
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def get_content_title(self):
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return mark_safe(escape(_('Editing data for %s')) % (
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format_html('<a href="{1}">{0}</a>', self.object.name,
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reverse('problem_detail', args=[self.object.code]))))
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def get_data_form(self, post=False):
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return ProblemDataForm(data=self.request.POST if post else None, prefix='problem-data',
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files=self.request.FILES if post else None,
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instance=ProblemData.objects.get_or_create(problem=self.object)[0])
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def get_case_formset(self, files, post=False):
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return ProblemCaseFormSet(data=self.request.POST if post else None, prefix='cases', valid_files=files,
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queryset=ProblemTestCase.objects.filter(dataset_id=self.object.pk).order_by('order'))
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def get_valid_files(self, data, post=False):
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try:
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if post and 'problem-data-zipfile-clear' in self.request.POST:
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return []
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elif post and 'problem-data-zipfile' in self.request.FILES:
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return ZipFile(self.request.FILES['problem-data-zipfile']).namelist()
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elif data.zipfile:
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return ZipFile(data.zipfile.path).namelist()
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except BadZipfile:
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return []
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return []
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def get_context_data(self, **kwargs):
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context = super(ProblemDataView, self).get_context_data(**kwargs)
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if 'data_form' not in context:
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context['data_form'] = self.get_data_form()
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valid_files = context['valid_files'] = self.get_valid_files(context['data_form'].instance)
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context['data_form'].zip_valid = valid_files is not False
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context['cases_formset'] = self.get_case_formset(valid_files)
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context['valid_files_json'] = mark_safe(json.dumps(context['valid_files']))
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context['valid_files'] = set(context['valid_files'])
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context['all_case_forms'] = chain(context['cases_formset'], [context['cases_formset'].empty_form])
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return context
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def post(self, request, *args, **kwargs):
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self.object = problem = self.get_object()
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data_form = self.get_data_form(post=True)
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valid_files = self.get_valid_files(data_form.instance, post=True)
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data_form.zip_valid = valid_files is not False
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cases_formset = self.get_case_formset(valid_files, post=True)
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if data_form.is_valid() and cases_formset.is_valid():
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data = data_form.save()
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for case in cases_formset.save(commit=False):
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case.dataset_id = problem.id
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case.save()
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for case in cases_formset.deleted_objects:
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case.delete()
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ProblemDataCompiler.generate(problem, data, problem.cases.order_by('order'), valid_files)
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return HttpResponseRedirect(request.get_full_path())
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return self.render_to_response(self.get_context_data(data_form=data_form, cases_formset=cases_formset,
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valid_files=valid_files))
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put = post
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@login_required
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def problem_data_file(request, problem, path):
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object = get_object_or_404(Problem, code=problem)
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if not object.is_editable_by(request.user):
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raise Http404()
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response = HttpResponse()
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if hasattr(settings, 'DMOJ_PROBLEM_DATA_INTERNAL') and request.META.get('SERVER_SOFTWARE', '').startswith('nginx/'):
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response['X-Accel-Redirect'] = '%s/%s/%s' % (settings.DMOJ_PROBLEM_DATA_INTERNAL, problem, path)
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else:
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try:
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with problem_data_storage.open(os.path.join(problem, path), 'rb') as f:
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response.content = f.read()
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except IOError:
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raise Http404()
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response['Content-Type'] = 'application/octet-stream'
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return response
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@login_required
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def problem_init_view(request, problem):
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problem = get_object_or_404(Problem, code=problem)
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if not request.user.is_superuser and not problem.is_editable_by(request.user):
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raise Http404()
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try:
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with problem_data_storage.open(os.path.join(problem.code, 'init.yml'), 'rb') as f:
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data = utf8text(f.read()).rstrip('\n')
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except IOError:
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raise Http404()
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return render(request, 'problem/yaml.html', {
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'raw_source': data, 'highlighted_source': highlight_code(data, 'yaml'),
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'title': _('Generated init.yml for %s') % problem.name,
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'content_title': mark_safe(escape(_('Generated init.yml for %s')) % (
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format_html('<a href="{1}">{0}</a>', problem.name,
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reverse('problem_detail', args=[problem.code])))),
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})
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