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from django.http import Http404 |
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from rest_framework import viewsets, decorators, status, mixins |
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from rest_framework.response import Response |
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from rest_framework.permissions import IsAuthenticated |
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from dry_rest_permissions.generics import DRYPermissions |
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from sigma_core.models.user import User |
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from sigma_core.models.group_member import GroupMember |
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from sigma_core.serializers.user import BasicUserWithPermsSerializer, DetailedUserWithPermsSerializer, DetailedUserSerializer |
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from sigma_core.serializers.group_member import GroupMemberSerializer |
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class GroupMemberViewSet(viewsets.ModelViewSet): |
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queryset = GroupMember.objects.select_related('group', 'user') |
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serializer_class = GroupMemberSerializer |
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permission_classes = [IsAuthenticated, DRYPermissions, ] |
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filter_fields = ('user', 'group', ) |
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def create(self, request): |
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serializer = GroupMemberSerializer(data=request.data) |
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if not serializer.is_valid(): |
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return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST) |
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mem = serializer.save() |
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return Response(serializer.data, status=status.HTTP_201_CREATED) |
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def destroy(self, request, pk=None): |
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from sigma_core.models.group import Group |
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try: |
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modified_mship = GroupMember.objects.all().select_related('group').get(pk=pk) |
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group = modified_mship.group |
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my_mship = GroupMember.objects.all().get(group=group, user=request.user) |
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except GroupMember.DoesNotExist: |
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raise Http404() |
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# You can always quit the Group (ie destroy YOUR membership) |
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if my_mship.id != modified_mship.id: |
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# Can't modify someone higher than you |
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if my_mship.perm_rank <= modified_mship.perm_rank: |
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return Response(status=status.HTTP_403_FORBIDDEN) |
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# Check permission |
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if group.req_rank_kick > my_mship.perm_rank: |
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return Response(status=status.HTTP_403_FORBIDDEN) |
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modified_mship.delete() |
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return Response(status=status.HTTP_204_NO_CONTENT) |
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def can_rank(self, request, modified_mship, my_mship, perm_rank_new): |
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# You can demote yourself: |
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demote_self = modified_mship.id == my_mship.id and perm_rank_new < my_mship.perm_rank |
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group = modified_mship.group |
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# Can't modify someone higher than you, or set rank to higher than you |
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if (my_mship.perm_rank <= modified_mship.perm_rank or my_mship.perm_rank <= perm_rank_new) and not demote_self: |
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return False |
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# promote |
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if perm_rank_new > modified_mship.perm_rank: |
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if group.req_rank_promote > my_mship.perm_rank: |
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return False |
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# demote |
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else: |
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if group.req_rank_demote > my_mship.perm_rank and not demote_self: |
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return False |
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return True |
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@decorators.detail_route(methods=['put']) |
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def rank(self, request, pk=None): |
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from sigma_core.models.group import Group |
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try: |
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modified_mship = GroupMember.objects.all().select_related('group').get(pk=pk) |
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my_mship = GroupMember.objects.all().get(group=modified_mship.group, user=request.user) |
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except GroupMember.DoesNotExist: |
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raise Http404() |
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perm_rank_new = request.data.get('perm_rank', None) |
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try: |
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if perm_rank_new > Group.ADMINISTRATOR_RANK or perm_rank_new < 1 or perm_rank_new == modified_mship.perm_rank: |
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return Response(status=status.HTTP_400_BAD_REQUEST) |
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except TypeError: |
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return Response(status=status.HTTP_400_BAD_REQUEST) |
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if not self.can_rank(request, modified_mship, my_mship, perm_rank_new): |
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return Response(status=status.HTTP_403_FORBIDDEN) |
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modified_mship.perm_rank = perm_rank_new |
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modified_mship.save() |
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return Response(GroupMemberSerializer(modified_mship).data, status=status.HTTP_200_OK) |
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@decorators.detail_route(methods=['put']) |
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def accept_join_request(self, request, pk=None): |
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try: |
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gm = GroupMember.objects.select_related('group').get(pk=pk) |
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except GroupMember.DoesNotExist: |
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raise Http404() |
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if not request.user.can_accept_join_requests(gm.group): |
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return Response(status=status.HTTP_403_FORBIDDEN) |
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gm.perm_rank = 1 # default_perm_rank should be 0, so validation is to set perm_rank to 1 |
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gm.save() |
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# TODO: notify user of that change |
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s = GroupMemberSerializer(gm) |
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return Response(s.data, status=status.HTTP_200_OK) |
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ProjetSigma /
backend
