from django import forms from django.conf import settings from django.contrib import messages from django.contrib.auth.mixins import LoginRequiredMixin from django.core.cache import cache from django.core.cache.utils import make_template_fragment_key from django.core.exceptions import PermissionDenied from django.db import transaction from django.db.models import Count, Q, Value, BooleanField from django.forms import Form, modelformset_factory from django.http import Http404, HttpResponsePermanentRedirect, HttpResponseRedirect from django.urls import reverse from django.utils import timezone from django.utils.translation import gettext as _, gettext_lazy, ungettext from django.views.generic import DetailView, FormView, ListView, UpdateView, View from django.views.generic.detail import SingleObjectMixin, SingleObjectTemplateResponseMixin from reversion import revisions from judge.forms import EditOrganizationForm from judge.models import BlogPost, Comment, Organization, OrganizationRequest, Problem, Profile, Contest from judge.utils.ranker import ranker from judge.utils.views import TitleMixin, generic_message __all__ = ['OrganizationList', 'OrganizationHome', 'OrganizationUsers', 'OrganizationMembershipChange', 'JoinOrganization', 'LeaveOrganization', 'EditOrganization', 'RequestJoinOrganization', 'OrganizationRequestDetail', 'OrganizationRequestView', 'OrganizationRequestLog', 'KickUserWidgetView'] class OrganizationBase(object): def can_edit_organization(self, org=None): if org is None: org = self.object if not self.request.user.is_authenticated: return False profile_id = self.request.profile.id return org.admins.filter(id=profile_id).exists() or org.registrant_id == profile_id def is_member(self, org=None): if org is None: org = self.object return self.request.profile in org if self.request.user.is_authenticated else False class OrganizationMixin(OrganizationBase): context_object_name = 'organization' model = Organization def get_context_data(self, **kwargs): context = super().get_context_data(**kwargs) context['logo_override_image'] = self.object.logo_override_image return context def dispatch(self, request, *args, **kwargs): try: return super(OrganizationMixin, self).dispatch(request, *args, **kwargs) except Http404: key = kwargs.get(self.slug_url_kwarg, None) if key: return generic_message(request, _('No such organization'), _('Could not find an organization with the key "%s".') % key) else: return generic_message(request, _('No such organization'), _('Could not find such organization.')) class OrganizationDetailView(OrganizationMixin, DetailView): def get(self, request, *args, **kwargs): self.object = self.get_object() if self.object.slug != kwargs['slug']: return HttpResponsePermanentRedirect(request.get_full_path().replace(kwargs['slug'], self.object.slug)) context = self.get_context_data(object=self.object) return self.render_to_response(context) class OrganizationList(TitleMixin, ListView, OrganizationBase): model = Organization context_object_name = 'organizations' template_name = 'organization/list.html' title = gettext_lazy('Organizations') def get_queryset(self): return super(OrganizationList, self).get_queryset().annotate(member_count=Count('member')) def get_context_data(self, **kwargs): context = super(OrganizationList, self).get_context_data(**kwargs) context['my_organizations'] = set() for organization in context['organizations']: if self.can_edit_organization(organization) or self.is_member(organization): context['my_organizations'].add(organization) return context class OrganizationHome(OrganizationDetailView): template_name = 'organization/home.html' def get_context_data(self, **kwargs): context = super(OrganizationHome, self).get_context_data(**kwargs) context['title'] = self.object.name context['can_edit'] = self.can_edit_organization() context['is_member'] = self.is_member() context['new_problems'] = Problem.objects.filter(is_public=True, is_organization_private=True, organizations=self.object) \ .order_by('-date', '-id')[:settings.DMOJ_BLOG_NEW_PROBLEM_COUNT] context['new_contests'] = Contest.objects.filter(is_visible=True, is_organization_private=True, organizations=self.object) \ .order_by('-end_time', '-id')[:settings.DMOJ_BLOG_NEW_CONTEST_COUNT] context['posts'] = BlogPost.objects.filter(visible=True, publish_on__lte=timezone.now(), is_organization_private=True, organizations=self.object) \ .order_by('-sticky', '-publish_on') \ .prefetch_related('authors__user', 'organizations') context['post_comment_counts'] = { int(page[2:]): count for page, count in Comment.objects.filter(page__in=['b:%d' % post.id for post in context['posts']], hidden=False) .values_list('page').annotate(count=Count('page')).order_by() } return context class OrganizationUsers(OrganizationDetailView): template_name = 'organization/users.html' def get_context_data(self, **kwargs): context = super(OrganizationUsers, self).get_context_data(**kwargs) context['title'] = _('%s Members') % self.object.name context['users'] = \ ranker(self.object.members.filter(is_unlisted=False).order_by('-performance_points', '-problem_count') .select_related('user').defer('about', 'user_script', 'notes')) context['partial'] = True context['is_admin'] = self.can_edit_organization() context['kick_url'] = reverse('organization_user_kick', args=[self.object.id, self.object.slug]) return context class OrganizationMembershipChange(LoginRequiredMixin, OrganizationMixin, SingleObjectMixin, View): def post(self, request, *args, **kwargs): org = self.get_object() response = self.handle(request, org, request.profile) if response is not None: return response return HttpResponseRedirect(org.get_absolute_url()) def handle(self, request, org, profile): raise NotImplementedError() class JoinOrganization(OrganizationMembershipChange): def handle(self, request, org, profile): if profile.organizations.filter(id=org.id).exists(): return generic_message(request, _('Joining organization'), _('You are already in the organization.')) if not org.is_open: return generic_message(request, _('Joining organization'), _('This organization is not open.')) max_orgs = settings.DMOJ_USER_MAX_ORGANIZATION_COUNT if profile.organizations.filter(is_open=True).count() >= max_orgs: return generic_message( request, _('Joining organization'), _('You may not be part of more than {count} public organizations.').format(count=max_orgs), ) profile.organizations.add(org) profile.save() cache.delete(make_template_fragment_key('org_member_count', (org.id,))) class LeaveOrganization(OrganizationMembershipChange): def handle(self, request, org, profile): if not profile.organizations.filter(id=org.id).exists(): return generic_message(request, _('Leaving organization'), _('You are not in "%s".') % org.short_name) profile.organizations.remove(org) cache.delete(make_template_fragment_key('org_member_count', (org.id,))) class OrganizationRequestForm(Form): reason = forms.CharField(widget=forms.Textarea) class RequestJoinOrganization(LoginRequiredMixin, SingleObjectMixin, FormView): model = Organization slug_field = 'key' slug_url_kwarg = 'key' template_name = 'organization/requests/request.html' form_class = OrganizationRequestForm def dispatch(self, request, *args, **kwargs): self.object = self.get_object() return super(RequestJoinOrganization, self).dispatch(request, *args, **kwargs) def get_context_data(self, **kwargs): context = super(RequestJoinOrganization, self).get_context_data(**kwargs) if self.object.is_open: raise Http404() context['title'] = _('Request to join %s') % self.object.name return context def form_valid(self, form): request = OrganizationRequest() request.organization = self.get_object() request.user = self.request.profile request.reason = form.cleaned_data['reason'] request.state = 'P' request.save() return HttpResponseRedirect(reverse('request_organization_detail', args=( request.organization.id, request.organization.slug, request.id, ))) class OrganizationRequestDetail(LoginRequiredMixin, TitleMixin, DetailView): model = OrganizationRequest template_name = 'organization/requests/detail.html' title = gettext_lazy('Join request detail') pk_url_kwarg = 'rpk' def get_object(self, queryset=None): object = super(OrganizationRequestDetail, self).get_object(queryset) profile = self.request.profile if object.user_id != profile.id and not object.organization.admins.filter(id=profile.id).exists(): raise PermissionDenied() return object OrganizationRequestFormSet = modelformset_factory(OrganizationRequest, extra=0, fields=('state',), can_delete=True) class OrganizationRequestBaseView(LoginRequiredMixin, SingleObjectTemplateResponseMixin, SingleObjectMixin, View): model = Organization slug_field = 'key' slug_url_kwarg = 'key' tab = None def get_object(self, queryset=None): organization = super(OrganizationRequestBaseView, self).get_object(queryset) if not (organization.admins.filter(id=self.request.profile.id).exists() or organization.registrant_id == self.request.profile.id): raise PermissionDenied() return organization def get_context_data(self, **kwargs): context = super(OrganizationRequestBaseView, self).get_context_data(**kwargs) context['title'] = _('Managing join requests for %s') % self.object.name context['tab'] = self.tab return context class OrganizationRequestView(OrganizationRequestBaseView): template_name = 'organization/requests/pending.html' tab = 'pending' def get_context_data(self, **kwargs): context = super(OrganizationRequestView, self).get_context_data(**kwargs) context['formset'] = self.formset return context def get(self, request, *args, **kwargs): self.object = self.get_object() self.formset = OrganizationRequestFormSet( queryset=OrganizationRequest.objects.filter(state='P', organization=self.object), ) context = self.get_context_data(object=self.object) return self.render_to_response(context) def post(self, request, *args, **kwargs): self.object = organization = self.get_object() self.formset = formset = OrganizationRequestFormSet(request.POST, request.FILES) if formset.is_valid(): if organization.slots is not None: deleted_set = set(formset.deleted_forms) to_approve = sum(form.cleaned_data['state'] == 'A' for form in formset.forms if form not in deleted_set) can_add = organization.slots - organization.members.count() if to_approve > can_add: messages.error(request, _('Your organization can only receive %d more members. ' 'You cannot approve %d users.') % (can_add, to_approve)) return self.render_to_response(self.get_context_data(object=organization)) approved, rejected = 0, 0 for obj in formset.save(): if obj.state == 'A': obj.user.organizations.add(obj.organization) approved += 1 elif obj.state == 'R': rejected += 1 messages.success(request, ungettext('Approved %d user.', 'Approved %d users.', approved) % approved + '\n' + ungettext('Rejected %d user.', 'Rejected %d users.', rejected) % rejected) cache.delete(make_template_fragment_key('org_member_count', (organization.id,))) return HttpResponseRedirect(request.get_full_path()) return self.render_to_response(self.get_context_data(object=organization)) put = post class OrganizationRequestLog(OrganizationRequestBaseView): states = ('A', 'R') tab = 'log' template_name = 'organization/requests/log.html' def get(self, request, *args, **kwargs): self.object = self.get_object() context = self.get_context_data(object=self.object) return self.render_to_response(context) def get_context_data(self, **kwargs): context = super(OrganizationRequestLog, self).get_context_data(**kwargs) context['requests'] = self.object.requests.filter(state__in=self.states) return context class EditOrganization(LoginRequiredMixin, TitleMixin, OrganizationMixin, UpdateView): template_name = 'organization/edit.html' model = Organization form_class = EditOrganizationForm def get_title(self): return _('Editing %s') % self.object.name def get_object(self, queryset=None): object = super(EditOrganization, self).get_object() if not self.can_edit_organization(object): raise PermissionDenied() return object def get_form(self, form_class=None): form = super(EditOrganization, self).get_form(form_class) form.fields['admins'].queryset = \ Profile.objects.filter(Q(organizations=self.object) | Q(admin_of=self.object)).distinct() return form def form_valid(self, form): with transaction.atomic(), revisions.create_revision(): revisions.set_comment(_('Edited from site')) revisions.set_user(self.request.user) return super(EditOrganization, self).form_valid(form) def dispatch(self, request, *args, **kwargs): try: return super(EditOrganization, self).dispatch(request, *args, **kwargs) except PermissionDenied: return generic_message(request, _("Can't edit organization"), _('You are not allowed to edit this organization.'), status=403) class KickUserWidgetView(LoginRequiredMixin, OrganizationMixin, SingleObjectMixin, View): def post(self, request, *args, **kwargs): organization = self.get_object() if not self.can_edit_organization(organization): return generic_message(request, _("Can't edit organization"), _('You are not allowed to kick people from this organization.'), status=403) try: user = Profile.objects.get(id=request.POST.get('user', None)) except Profile.DoesNotExist: return generic_message(request, _("Can't kick user"), _('The user you are trying to kick does not exist!'), status=400) if not organization.members.filter(id=user.id).exists(): return generic_message(request, _("Can't kick user"), _('The user you are trying to kick is not in organization: %s.') % organization.name, status=400) organization.members.remove(user) return HttpResponseRedirect(organization.get_users_url())