etesync-server/django_etebase/views.py

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2020-02-19 18:53:43 +00:00
# Copyright © 2017 Tom Hacohen
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, version 3.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import msgpack
from functools import reduce
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from django.conf import settings
from django.contrib.auth import get_user_model, user_logged_in, user_logged_out
from django.core.exceptions import PermissionDenied
from django.db import transaction, IntegrityError
from django.db.models import Max, Q, F, Value as V
from django.db.models.functions import Coalesce, Greatest
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from django.http import HttpResponseBadRequest, HttpResponse, Http404
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from django.shortcuts import get_object_or_404
from rest_framework import status
from rest_framework import viewsets
from rest_framework.decorators import action as action_decorator
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from rest_framework.response import Response
from rest_framework.parsers import JSONParser, FormParser, MultiPartParser
from rest_framework.renderers import BrowsableAPIRenderer
from rest_framework.exceptions import AuthenticationFailed
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import nacl.encoding
import nacl.signing
import nacl.secret
import nacl.hash
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from .token_auth.models import AuthToken
from .drf_msgpack.parsers import MessagePackParser
from .drf_msgpack.renderers import MessagePackRenderer
from . import app_settings, permissions
from .renderers import JSONRenderer
from .models import (
Collection,
CollectionItem,
CollectionItemRevision,
CollectionMember,
CollectionMemberRemoved,
CollectionInvitation,
Stoken,
UserInfo,
)
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from .serializers import (
AuthenticationChangePasswordInnerSerializer,
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AuthenticationSignupSerializer,
AuthenticationLoginChallengeSerializer,
AuthenticationLoginSerializer,
AuthenticationLoginInnerSerializer,
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CollectionSerializer,
CollectionItemSerializer,
CollectionItemBulkGetSerializer,
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CollectionItemDepSerializer,
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CollectionItemRevisionSerializer,
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CollectionItemChunkSerializer,
CollectionMemberSerializer,
CollectionInvitationSerializer,
InvitationAcceptSerializer,
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UserInfoPubkeySerializer,
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UserSerializer,
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)
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from .utils import get_user_queryset
from .exceptions import EtebaseValidationError
from .parsers import ChunkUploadParser
from .signals import user_signed_up
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User = get_user_model()
def msgpack_encode(content):
return msgpack.packb(content, use_bin_type=True)
def msgpack_decode(content):
return msgpack.unpackb(content, raw=False)
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class BaseViewSet(viewsets.ModelViewSet):
authentication_classes = tuple(app_settings.API_AUTHENTICATORS)
permission_classes = tuple(app_settings.API_PERMISSIONS)
renderer_classes = [JSONRenderer, MessagePackRenderer, BrowsableAPIRenderer]
parser_classes = [JSONParser, MessagePackParser, FormParser, MultiPartParser]
stoken_id_fields = None
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def get_serializer_class(self):
serializer_class = self.serializer_class
if self.request.method == 'PUT':
serializer_class = getattr(self, 'serializer_update_class', serializer_class)
return serializer_class
def get_collection_queryset(self, queryset=Collection.objects):
user = self.request.user
return queryset.filter(members__user=user)
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def get_stoken_obj_id(self, request):
return request.GET.get('stoken', None)
def get_stoken_obj(self, request):
stoken = self.get_stoken_obj_id(request)
if stoken is not None:
try:
return Stoken.objects.get(uid=stoken)
except Stoken.DoesNotExist:
raise EtebaseValidationError({
'code': 'bad_stoken',
'detail': 'Invalid stoken.',
},
status_code=status.HTTP_400_BAD_REQUEST)
return None
def filter_by_stoken(self, request, queryset):
stoken_rev = self.get_stoken_obj(request)
aggr_fields = [Coalesce(Max(field), V(0)) for field in self.stoken_id_fields]
max_stoken = Greatest(*aggr_fields) if len(aggr_fields) > 1 else aggr_fields[0]
queryset = queryset.annotate(max_stoken=max_stoken).order_by('max_stoken')
if stoken_rev is not None:
queryset = queryset.filter(max_stoken__gt=stoken_rev.id)
return queryset, stoken_rev
def get_queryset_stoken(self, queryset):
maxid = -1
for row in queryset:
rowmaxid = getattr(row, 'max_stoken') or -1
maxid = max(maxid, rowmaxid)
new_stoken = (maxid >= 0) and Stoken.objects.get(id=maxid).uid
return new_stoken
def filter_by_stoken_and_limit(self, request, queryset):
limit = int(request.GET.get('limit', 50))
queryset, stoken_rev = self.filter_by_stoken(request, queryset)
stoken = stoken_rev.uid if stoken_rev is not None else None
result = list(queryset[:limit + 1])
if len(result) < limit + 1:
done = True
else:
done = False
result = result[:-1]
new_stoken = self.get_queryset_stoken(result) or stoken
return result, new_stoken, done
# Change how our list works by default
def list(self, request, collection_uid=None, *args, **kwargs):
queryset = self.get_queryset()
serializer = self.get_serializer(queryset, many=True)
ret = {
'data': serializer.data,
'done': True, # we always return all the items, so it's always done
}
return Response(ret)
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class CollectionViewSet(BaseViewSet):
allowed_methods = ['GET', 'POST']
permission_classes = BaseViewSet.permission_classes + (permissions.IsCollectionAdminOrReadOnly, )
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queryset = Collection.objects.all()
serializer_class = CollectionSerializer
lookup_field = 'main_item__uid'
lookup_url_kwarg = 'uid'
stoken_id_fields = ['items__revisions__stoken__id', 'members__stoken__id']
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def get_queryset(self, queryset=None):
if queryset is None:
queryset = type(self).queryset
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return self.get_collection_queryset(queryset)
def get_serializer_context(self):
context = super().get_serializer_context()
prefetch = self.request.query_params.get('prefetch', 'auto')
context.update({'request': self.request, 'prefetch': prefetch})
return context
def destroy(self, request, uid=None, *args, **kwargs):
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# FIXME: implement
return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
def partial_update(self, request, uid=None, *args, **kwargs):
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return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
def update(self, request, *args, **kwargs):
return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
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def create(self, request, *args, **kwargs):
serializer = self.get_serializer(data=request.data)
serializer.is_valid(raise_exception=True)
serializer.save(owner=self.request.user)
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return Response({}, status=status.HTTP_201_CREATED)
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def list(self, request, *args, **kwargs):
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queryset = self.get_queryset()
result, new_stoken, done = self.filter_by_stoken_and_limit(request, queryset)
serializer = self.get_serializer(result, many=True)
ret = {
'data': serializer.data,
'stoken': new_stoken,
'done': done,
}
stoken_obj = self.get_stoken_obj(request)
if stoken_obj is not None:
# FIXME: honour limit? (the limit should be combined for data and this because of stoken)
remed = CollectionMemberRemoved.objects.filter(user=request.user, stoken__id__gt=stoken_obj.id) \
.values_list('collection__main_item__uid', flat=True)
if len(remed) > 0:
ret['removedMemberships'] = [{'uid': x} for x in remed]
return Response(ret)
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class CollectionItemViewSet(BaseViewSet):
allowed_methods = ['GET', 'POST', 'PUT']
permission_classes = BaseViewSet.permission_classes + (permissions.HasWriteAccessOrReadOnly, )
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queryset = CollectionItem.objects.all()
serializer_class = CollectionItemSerializer
lookup_field = 'uid'
stoken_id_fields = ['revisions__stoken__id']
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def get_queryset(self):
collection_uid = self.kwargs['collection_uid']
try:
collection = self.get_collection_queryset(Collection.objects).get(main_item__uid=collection_uid)
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except Collection.DoesNotExist:
raise Http404("Collection does not exist")
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# XXX Potentially add this for performance: .prefetch_related('revisions__chunks')
queryset = type(self).queryset.filter(collection__pk=collection.pk,
revisions__current=True)
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return queryset
def get_serializer_context(self):
context = super().get_serializer_context()
prefetch = self.request.query_params.get('prefetch', 'auto')
context.update({'request': self.request, 'prefetch': prefetch})
return context
def create(self, request, collection_uid=None, *args, **kwargs):
# We create using batch and transaction
return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
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def destroy(self, request, collection_uid=None, uid=None, *args, **kwargs):
# We can't have destroy because we need to get data from the user (in the body) such as hmac.
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return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
def update(self, request, collection_uid=None, uid=None, *args, **kwargs):
return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
def partial_update(self, request, collection_uid=None, uid=None, *args, **kwargs):
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return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
def list(self, request, collection_uid=None, *args, **kwargs):
queryset = self.get_queryset()
if not self.request.query_params.get('withCollection', False):
queryset = queryset.filter(parent__isnull=True)
result, new_stoken, done = self.filter_by_stoken_and_limit(request, queryset)
serializer = self.get_serializer(result, many=True)
ret = {
'data': serializer.data,
'stoken': new_stoken,
'done': done,
}
return Response(ret)
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@action_decorator(detail=True, methods=['GET'])
def revision(self, request, collection_uid=None, uid=None, *args, **kwargs):
col = get_object_or_404(self.get_collection_queryset(Collection.objects), main_item__uid=collection_uid)
item = get_object_or_404(col.items, uid=uid)
limit = int(request.GET.get('limit', 50))
iterator = request.GET.get('iterator', None)
queryset = item.revisions.order_by('-id')
if iterator is not None:
iterator = get_object_or_404(queryset, uid=iterator)
queryset = queryset.filter(id__lt=iterator.id)
result = list(queryset[:limit + 1])
if len(result) < limit + 1:
done = True
else:
done = False
result = result[:-1]
serializer = CollectionItemRevisionSerializer(result, context=self.get_serializer_context(), many=True)
iterator = serializer.data[-1]['uid'] if len(result) > 0 else None
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ret = {
'data': serializer.data,
'iterator': iterator,
'done': done,
}
return Response(ret)
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# FIXME: rename to something consistent with what the clients have - maybe list_updates?
@action_decorator(detail=False, methods=['POST'])
def fetch_updates(self, request, collection_uid=None, *args, **kwargs):
queryset = self.get_queryset()
serializer = CollectionItemBulkGetSerializer(data=request.data, many=True)
serializer.is_valid(raise_exception=True)
# FIXME: make configurable?
item_limit = 200
if len(serializer.validated_data) > item_limit:
content = {'code': 'too_many_items',
'detail': 'Request has too many items. Limit: {}'. format(item_limit)}
return Response(content, status=status.HTTP_400_BAD_REQUEST)
queryset, stoken_rev = self.filter_by_stoken(request, queryset)
uids, etags = zip(*[(item['uid'], item.get('etag')) for item in serializer.validated_data])
revs = CollectionItemRevision.objects.filter(uid__in=etags, current=True)
queryset = queryset.filter(uid__in=uids).exclude(revisions__in=revs)
new_stoken = self.get_queryset_stoken(queryset)
stoken = getattr(stoken_rev, 'uid', None) if stoken_rev is not None else None
new_stoken = new_stoken or stoken
serializer = self.get_serializer(queryset, many=True)
ret = {
'data': serializer.data,
'stoken': new_stoken,
'done': True, # we always return all the items, so it's always done
}
return Response(ret)
@action_decorator(detail=False, methods=['POST'])
def batch(self, request, collection_uid=None, *args, **kwargs):
return self.transaction(request, collection_uid, validate_etag=False)
@action_decorator(detail=False, methods=['POST'])
def transaction(self, request, collection_uid=None, validate_etag=True, *args, **kwargs):
stoken = request.GET.get('stoken', None)
with transaction.atomic(): # We need this for locking on the collection object
collection_object = get_object_or_404(
self.get_collection_queryset(Collection.objects).select_for_update(), # Lock writes on the collection
main_item__uid=collection_uid)
if stoken is not None and stoken != collection_object.stoken:
content = {'code': 'stale_stoken', 'detail': 'Stoken is too old'}
return Response(content, status=status.HTTP_409_CONFLICT)
items = request.data.get('items')
deps = request.data.get('deps', None)
# FIXME: It should just be one serializer
context = self.get_serializer_context()
context.update({'validate_etag': validate_etag})
serializer = self.get_serializer_class()(data=items, context=context, many=True)
deps_serializer = CollectionItemDepSerializer(data=deps, context=context, many=True)
ser_valid = serializer.is_valid()
deps_ser_valid = (deps is None or deps_serializer.is_valid())
if ser_valid and deps_ser_valid:
items = serializer.save(collection=collection_object)
ret = {
}
return Response(ret, status=status.HTTP_200_OK)
return Response(
{
"items": serializer.errors,
"deps": deps_serializer.errors if deps is not None else [],
},
status=status.HTTP_409_CONFLICT)
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class CollectionItemChunkViewSet(viewsets.ViewSet):
allowed_methods = ['GET', 'PUT']
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authentication_classes = BaseViewSet.authentication_classes
permission_classes = BaseViewSet.permission_classes
renderer_classes = BaseViewSet.renderer_classes
parser_classes = (ChunkUploadParser, )
serializer_class = CollectionItemChunkSerializer
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lookup_field = 'uid'
def get_serializer_class(self):
return self.serializer_class
def get_collection_queryset(self, queryset=Collection.objects):
user = self.request.user
return queryset.filter(members__user=user)
def update(self, request, *args, collection_uid=None, collection_item_uid=None, uid=None, **kwargs):
col = get_object_or_404(self.get_collection_queryset(), main_item__uid=collection_uid)
# IGNORED FOR NOW: col_it = get_object_or_404(col.items, uid=collection_item_uid)
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data = {
"uid": uid,
"chunkFile": request.data["file"],
}
serializer = self.get_serializer_class()(data=data)
serializer.is_valid(raise_exception=True)
try:
serializer.save(collection=col)
except IntegrityError:
return Response(
{"code": "chunk_exists", "detail": "Chunk already exists."},
status=status.HTTP_409_CONFLICT
)
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return Response({}, status=status.HTTP_201_CREATED)
@action_decorator(detail=True, methods=['GET'])
def download(self, request, collection_uid=None, collection_item_uid=None, uid=None, *args, **kwargs):
import os
from django.views.static import serve
col = get_object_or_404(self.get_collection_queryset(), main_item__uid=collection_uid)
# IGNORED FOR NOW: col_it = get_object_or_404(col.items, uid=collection_item_uid)
chunk = get_object_or_404(col.chunks, uid=uid)
filename = chunk.chunkFile.path
dirname = os.path.dirname(filename)
basename = os.path.basename(filename)
# FIXME: DO NOT USE! Use django-send file or etc instead.
return serve(request, basename, dirname)
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class CollectionMemberViewSet(BaseViewSet):
allowed_methods = ['GET', 'PUT', 'DELETE']
our_base_permission_classes = BaseViewSet.permission_classes
permission_classes = our_base_permission_classes + (permissions.IsCollectionAdmin, )
queryset = CollectionMember.objects.all()
serializer_class = CollectionMemberSerializer
lookup_field = f'user__{User.USERNAME_FIELD}__iexact'
lookup_url_kwarg = 'username'
stoken_id_fields = ['stoken__id']
# FIXME: need to make sure that there's always an admin, and maybe also don't let an owner remove adm access
# (if we want to transfer, we need to do that specifically)
def get_queryset(self, queryset=None):
collection_uid = self.kwargs['collection_uid']
try:
collection = self.get_collection_queryset(Collection.objects).get(main_item__uid=collection_uid)
except Collection.DoesNotExist:
raise Http404('Collection does not exist')
if queryset is None:
queryset = type(self).queryset
return queryset.filter(collection=collection)
# We override this method because we expect the stoken to be called iterator
def get_stoken_obj_id(self, request):
return request.GET.get('iterator', None)
def list(self, request, collection_uid=None, *args, **kwargs):
queryset = self.get_queryset().order_by('id')
result, new_stoken, done = self.filter_by_stoken_and_limit(request, queryset)
serializer = self.get_serializer(result, many=True)
ret = {
'data': serializer.data,
'iterator': new_stoken, # Here we call it an iterator, it's only stoken for collection/items
'done': done,
}
return Response(ret)
def create(self, request, *args, **kwargs):
return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
# FIXME: block leaving if we are the last admins - should be deleted / assigned in this case depending if there
# are other memebers.
def perform_destroy(self, instance):
instance.revoke()
@action_decorator(detail=False, methods=['POST'], permission_classes=our_base_permission_classes)
def leave(self, request, collection_uid=None, *args, **kwargs):
collection_uid = self.kwargs['collection_uid']
col = get_object_or_404(self.get_collection_queryset(Collection.objects), main_item__uid=collection_uid)
member = col.members.get(user=request.user)
self.perform_destroy(member)
return Response({})
class InvitationBaseViewSet(BaseViewSet):
queryset = CollectionInvitation.objects.all()
serializer_class = CollectionInvitationSerializer
lookup_field = 'uid'
lookup_url_kwarg = 'invitation_uid'
def list(self, request, collection_uid=None, *args, **kwargs):
limit = int(request.GET.get('limit', 50))
iterator = request.GET.get('iterator', None)
queryset = self.get_queryset().order_by('id')
if iterator is not None:
iterator = get_object_or_404(queryset, uid=iterator)
queryset = queryset.filter(id__gt=iterator.id)
result = list(queryset[:limit + 1])
if len(result) < limit + 1:
done = True
else:
done = False
result = result[:-1]
serializer = self.get_serializer(result, many=True)
iterator = serializer.data[-1]['uid'] if len(result) > 0 else None
ret = {
'data': serializer.data,
'iterator': iterator,
'done': done,
}
return Response(ret)
class InvitationOutgoingViewSet(InvitationBaseViewSet):
allowed_methods = ['GET', 'POST', 'PUT', 'DELETE']
def get_queryset(self, queryset=None):
if queryset is None:
queryset = type(self).queryset
return queryset.filter(fromMember__user=self.request.user)
def create(self, request, *args, **kwargs):
serializer = self.get_serializer(data=request.data)
serializer.is_valid(raise_exception=True)
collection_uid = serializer.validated_data.get('collection', {}).get('uid')
try:
collection = self.get_collection_queryset(Collection.objects).get(main_item__uid=collection_uid)
except Collection.DoesNotExist:
raise Http404('Collection does not exist')
if request.user == serializer.validated_data.get('user'):
content = {'code': 'self_invite', 'detail': 'Inviting yourself is invalid'}
return Response(content, status=status.HTTP_400_BAD_REQUEST)
if not permissions.is_collection_admin(collection, request.user):
raise PermissionDenied('User is not an admin of this collection')
serializer.save(collection=collection)
return Response({}, status=status.HTTP_201_CREATED)
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@action_decorator(detail=False, allowed_methods=['GET'], methods=['GET'])
def fetch_user_profile(self, request, *args, **kwargs):
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username = request.GET.get('username')
kwargs = {User.USERNAME_FIELD: username.lower()}
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user = get_object_or_404(get_user_queryset(User.objects.all(), self), **kwargs)
user_info = get_object_or_404(UserInfo.objects.all(), owner=user)
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serializer = UserInfoPubkeySerializer(user_info)
return Response(serializer.data)
class InvitationIncomingViewSet(InvitationBaseViewSet):
allowed_methods = ['GET', 'DELETE']
def get_queryset(self, queryset=None):
if queryset is None:
queryset = type(self).queryset
return queryset.filter(user=self.request.user)
@action_decorator(detail=True, allowed_methods=['POST'], methods=['POST'])
def accept(self, request, invitation_uid=None, *args, **kwargs):
invitation = get_object_or_404(self.get_queryset(), uid=invitation_uid)
context = self.get_serializer_context()
context.update({'invitation': invitation})
serializer = InvitationAcceptSerializer(data=request.data, context=context)
serializer.is_valid(raise_exception=True)
serializer.save()
return Response(status=status.HTTP_201_CREATED)
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class AuthenticationViewSet(viewsets.ViewSet):
allowed_methods = ['POST']
authentication_classes = BaseViewSet.authentication_classes
renderer_classes = BaseViewSet.renderer_classes
parser_classes = BaseViewSet.parser_classes
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def get_encryption_key(self, salt):
key = nacl.hash.blake2b(settings.SECRET_KEY.encode(), encoder=nacl.encoding.RawEncoder)
return nacl.hash.blake2b(b'', key=key, salt=salt[:nacl.hash.BLAKE2B_SALTBYTES], person=b'etebase-auth',
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encoder=nacl.encoding.RawEncoder)
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def get_queryset(self):
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return get_user_queryset(User.objects.all(), self)
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def get_serializer_context(self):
return {
'request': self.request,
'format': self.format_kwarg,
'view': self
}
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def login_response_data(self, user):
return {
'token': AuthToken.objects.create(user=user).key,
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'user': UserSerializer(user).data,
}
def list(self, request, *args, **kwargs):
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return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
@action_decorator(detail=False, methods=['POST'])
def signup(self, request, *args, **kwargs):
serializer = AuthenticationSignupSerializer(data=request.data, context=self.get_serializer_context())
serializer.is_valid(raise_exception=True)
user = serializer.save()
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user_signed_up.send(sender=user.__class__, request=request, user=user)
data = self.login_response_data(user)
return Response(data, status=status.HTTP_201_CREATED)
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def get_login_user(self, username):
kwargs = {User.USERNAME_FIELD: username.lower()}
try:
user = self.get_queryset().get(**kwargs)
if not hasattr(user, 'userinfo'):
raise AuthenticationFailed({'code': 'user_not_init', 'detail': 'User not properly init'})
return user
except User.DoesNotExist:
raise AuthenticationFailed({'code': 'user_not_found', 'detail': 'User not found'})
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def validate_login_request(self, request, validated_data, response_raw, signature, expected_action):
from datetime import datetime
username = validated_data.get('username')
user = self.get_login_user(username)
host = validated_data['host']
challenge = validated_data['challenge']
action = validated_data['action']
salt = bytes(user.userinfo.salt)
enc_key = self.get_encryption_key(salt)
box = nacl.secret.SecretBox(enc_key)
challenge_data = msgpack_decode(box.decrypt(challenge))
now = int(datetime.now().timestamp())
if action != expected_action:
content = {'code': 'wrong_action', 'detail': 'Expected "{}" but got something else'.format(expected_action)}
return Response(content, status=status.HTTP_400_BAD_REQUEST)
elif now - challenge_data['timestamp'] > app_settings.CHALLENGE_VALID_SECONDS:
content = {'code': 'challenge_expired', 'detail': 'Login challange has expired'}
return Response(content, status=status.HTTP_400_BAD_REQUEST)
elif challenge_data['userId'] != user.id:
content = {'code': 'wrong_user', 'detail': 'This challenge is for the wrong user'}
return Response(content, status=status.HTTP_400_BAD_REQUEST)
elif not settings.DEBUG and host != request.get_host():
detail = 'Found wrong host name. Got: "{}" expected: "{}"'.format(host, request.get_host())
content = {'code': 'wrong_host', 'detail': detail}
return Response(content, status=status.HTTP_400_BAD_REQUEST)
verify_key = nacl.signing.VerifyKey(bytes(user.userinfo.loginPubkey), encoder=nacl.encoding.RawEncoder)
try:
verify_key.verify(response_raw, signature)
except nacl.exceptions.BadSignatureError:
return Response({'code': 'login_bad_signature', 'detail': 'Wrong password for user.'}, status=status.HTTP_401_UNAUTHORIZED)
return None
@action_decorator(detail=False, methods=['GET'])
def is_etebase(self, request, *args, **kwargs):
return Response({}, status=status.HTTP_200_OK)
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@action_decorator(detail=False, methods=['POST'])
def login_challenge(self, request, *args, **kwargs):
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from datetime import datetime
serializer = AuthenticationLoginChallengeSerializer(data=request.data)
serializer.is_valid(raise_exception=True)
username = serializer.validated_data.get('username')
user = self.get_login_user(username)
salt = bytes(user.userinfo.salt)
enc_key = self.get_encryption_key(salt)
box = nacl.secret.SecretBox(enc_key)
challenge_data = {
"timestamp": int(datetime.now().timestamp()),
"userId": user.id,
}
challenge = box.encrypt(msgpack_encode(challenge_data), encoder=nacl.encoding.RawEncoder)
ret = {
"salt": salt,
"challenge": challenge,
"version": user.userinfo.version,
}
return Response(ret, status=status.HTTP_200_OK)
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@action_decorator(detail=False, methods=['POST'])
def login(self, request, *args, **kwargs):
outer_serializer = AuthenticationLoginSerializer(data=request.data)
outer_serializer.is_valid(raise_exception=True)
response_raw = outer_serializer.validated_data['response']
response = msgpack_decode(response_raw)
signature = outer_serializer.validated_data['signature']
context = {'host': request.get_host()}
serializer = AuthenticationLoginInnerSerializer(data=response, context=context)
serializer.is_valid(raise_exception=True)
bad_login_response = self.validate_login_request(
request, serializer.validated_data, response_raw, signature, "login")
if bad_login_response is not None:
return bad_login_response
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username = serializer.validated_data.get('username')
user = self.get_login_user(username)
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data = self.login_response_data(user)
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user_logged_in.send(sender=user.__class__, request=request, user=user)
return Response(data, status=status.HTTP_200_OK)
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@action_decorator(detail=False, methods=['POST'], permission_classes=BaseViewSet.permission_classes)
def logout(self, request, *args, **kwargs):
request.auth.delete()
user_logged_out.send(sender=request.user.__class__, request=request, user=request.user)
return Response(status=status.HTTP_204_NO_CONTENT)
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@action_decorator(detail=False, methods=['POST'], permission_classes=BaseViewSet.permission_classes)
def change_password(self, request, *args, **kwargs):
outer_serializer = AuthenticationLoginSerializer(data=request.data)
outer_serializer.is_valid(raise_exception=True)
response_raw = outer_serializer.validated_data['response']
response = msgpack_decode(response_raw)
signature = outer_serializer.validated_data['signature']
context = {'host': request.get_host()}
serializer = AuthenticationChangePasswordInnerSerializer(request.user.userinfo, data=response, context=context)
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serializer.is_valid(raise_exception=True)
bad_login_response = self.validate_login_request(
request, serializer.validated_data, response_raw, signature, "changePassword")
if bad_login_response is not None:
return bad_login_response
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serializer.save()
return Response({}, status=status.HTTP_200_OK)
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class TestAuthenticationViewSet(viewsets.ViewSet):
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allowed_methods = ['POST']
renderer_classes = BaseViewSet.renderer_classes
parser_classes = BaseViewSet.parser_classes
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def get_serializer_context(self):
return {
'request': self.request,
'format': self.format_kwarg,
'view': self
}
def list(self, request, *args, **kwargs):
return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
@action_decorator(detail=False, methods=['POST'])
def reset(self, request, *args, **kwargs):
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# Only run when in DEBUG mode! It's only used for tests
if not settings.DEBUG:
return HttpResponseBadRequest("Only allowed in debug mode.")
with transaction.atomic():
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user_queryset = get_user_queryset(User.objects.all(), self)
user = get_object_or_404(user_queryset, username=request.data.get('user').get('username'))
# Only allow test users for extra safety
if not getattr(user, User.USERNAME_FIELD).startswith('test_user'):
return HttpResponseBadRequest("Endpoint not allowed for user.")
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if hasattr(user, 'userinfo'):
user.userinfo.delete()
serializer = AuthenticationSignupSerializer(data=request.data, context=self.get_serializer_context())
serializer.is_valid(raise_exception=True)
serializer.save()
# Delete all of the journal data for this user for a clear test env
user.collection_set.all().delete()
user.incoming_invitations.all().delete()
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# FIXME: also delete chunk files!!!
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return HttpResponse()