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Python

# 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/>.
import msgpack
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, Value as V, Q
from django.db.models.functions import Coalesce, Greatest
from django.http import HttpResponseBadRequest, HttpResponse, Http404
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
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
from rest_framework.permissions import IsAuthenticated
import nacl.encoding
import nacl.signing
import nacl.secret
import nacl.hash
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,
)
from .serializers import (
AuthenticationChangePasswordInnerSerializer,
AuthenticationSignupSerializer,
AuthenticationLoginChallengeSerializer,
AuthenticationLoginSerializer,
AuthenticationLoginInnerSerializer,
CollectionSerializer,
CollectionItemSerializer,
CollectionItemBulkGetSerializer,
CollectionItemDepSerializer,
CollectionItemRevisionSerializer,
CollectionItemChunkSerializer,
CollectionListMultiSerializer,
CollectionMemberSerializer,
CollectionInvitationSerializer,
InvitationAcceptSerializer,
UserInfoPubkeySerializer,
UserSerializer,
)
from .utils import get_user_queryset
from .exceptions import EtebaseValidationError
from .parsers import ChunkUploadParser
from .signals import user_signed_up
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)
class BaseViewSet(viewsets.ModelViewSet):
authentication_classes = tuple(app_settings.API_AUTHENTICATORS)
permission_classes = tuple(app_settings.API_PERMISSIONS)
renderer_classes = [JSONRenderer, MessagePackRenderer] + ([BrowsableAPIRenderer] if settings.DEBUG else [])
parser_classes = [JSONParser, MessagePackParser, FormParser, MultiPartParser]
stoken_id_fields = None
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)
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("bad_stoken", "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)
return new_stoken or None
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)
result = list(queryset[: limit + 1])
if len(result) < limit + 1:
done = True
else:
done = False
result = result[:-1]
new_stoken_obj = self.get_queryset_stoken(result) or stoken_rev
return result, new_stoken_obj, 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)
class CollectionViewSet(BaseViewSet):
allowed_methods = ["GET", "POST"]
permission_classes = BaseViewSet.permission_classes + (permissions.IsCollectionAdminOrReadOnly,)
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"]
def get_queryset(self, queryset=None):
if queryset is None:
queryset = type(self).queryset
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):
# FIXME: implement
return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
def partial_update(self, request, uid=None, *args, **kwargs):
return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
def update(self, request, *args, **kwargs):
return Response(status=status.HTTP_405_METHOD_NOT_ALLOWED)
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)
return Response({}, status=status.HTTP_201_CREATED)
def list(self, request, *args, **kwargs):
queryset = self.get_queryset()
return self.list_common(request, queryset, *args, **kwargs)
@action_decorator(detail=False, methods=["POST"])
def list_multi(self, request, *args, **kwargs):
serializer = CollectionListMultiSerializer(data=request.data)
serializer.is_valid(raise_exception=True)
collection_types = serializer.validated_data["collectionTypes"]
queryset = self.get_queryset()
# FIXME: Remove the isnull part once we attach collection types to all objects ("collection-type-migration")
queryset = queryset.filter(
Q(members__collectionType__uid__in=collection_types) | Q(members__collectionType__isnull=True)
)
return self.list_common(request, queryset, *args, **kwargs)
def list_common(self, request, queryset, *args, **kwargs):
result, new_stoken_obj, done = self.filter_by_stoken_and_limit(request, queryset)
new_stoken = new_stoken_obj and new_stoken_obj.uid
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_qs = CollectionMemberRemoved.objects.filter(user=request.user, stoken__id__gt=stoken_obj.id)
if not ret["done"]:
# We only filter by the new_stoken if we are not done. This is because if we are done, the new stoken
# can point to the most recent collection change rather than most recent removed membership.
remed_qs = remed_qs.filter(stoken__id__lte=new_stoken_obj.id)
remed = remed_qs.values_list("collection__main_item__uid", flat=True)
if len(remed) > 0:
ret["removedMemberships"] = [{"uid": x} for x in remed]
return Response(ret)
class CollectionItemViewSet(BaseViewSet):
allowed_methods = ["GET", "POST", "PUT"]
permission_classes = BaseViewSet.permission_classes + (permissions.HasWriteAccessOrReadOnly,)
queryset = CollectionItem.objects.all()
serializer_class = CollectionItemSerializer
lookup_field = "uid"
stoken_id_fields = ["revisions__stoken__id"]
def get_queryset(self):
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")
# XXX Potentially add this for performance: .prefetch_related('revisions__chunks')
queryset = type(self).queryset.filter(collection__pk=collection.pk, revisions__current=True)
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)
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.
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):
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_obj, done = self.filter_by_stoken_and_limit(request, queryset)
new_stoken = new_stoken_obj and new_stoken_obj.uid
serializer = self.get_serializer(result, many=True)
ret = {
"data": serializer.data,
"stoken": new_stoken,
"done": done,
}
return Response(ret)
@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
ret = {
"data": serializer.data,
"iterator": iterator,
"done": done,
}
return Response(ret)
# 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_obj = self.get_queryset_stoken(queryset)
new_stoken = new_stoken_obj and new_stoken_obj.uid
stoken = stoken_rev and getattr(stoken_rev, "uid", 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,
)
class CollectionItemChunkViewSet(viewsets.ViewSet):
allowed_methods = ["GET", "PUT"]
authentication_classes = BaseViewSet.authentication_classes
permission_classes = BaseViewSet.permission_classes
renderer_classes = BaseViewSet.renderer_classes
parser_classes = (ChunkUploadParser,)
serializer_class = CollectionItemChunkSerializer
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)
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
)
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)
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_obj, done = self.filter_by_stoken_and_limit(request, queryset)
new_stoken = new_stoken_obj and new_stoken_obj.uid
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(
{"code": "admin_access_required", "detail": "User is not an admin of this collection"}
)
serializer.save(collection=collection)
return Response({}, status=status.HTTP_201_CREATED)
@action_decorator(detail=False, allowed_methods=["GET"], methods=["GET"])
def fetch_user_profile(self, request, *args, **kwargs):
username = request.GET.get("username")
kwargs = {User.USERNAME_FIELD: username.lower()}
user = get_object_or_404(get_user_queryset(User.objects.all(), self), **kwargs)
user_info = get_object_or_404(UserInfo.objects.all(), owner=user)
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)
class AuthenticationViewSet(viewsets.ViewSet):
allowed_methods = ["POST"]
authentication_classes = BaseViewSet.authentication_classes
renderer_classes = BaseViewSet.renderer_classes
parser_classes = BaseViewSet.parser_classes
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",
encoder=nacl.encoding.RawEncoder,
)
def get_queryset(self):
return get_user_queryset(User.objects.all(), self)
def get_serializer_context(self):
return {"request": self.request, "format": self.format_kwarg, "view": self}
def login_response_data(self, user):
return {
"token": AuthToken.objects.create(user=user).key,
"user": UserSerializer(user).data,
}
def list(self, request, *args, **kwargs):
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()
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)
def get_login_user(self, username):
kwargs = {User.USERNAME_FIELD + "__iexact": 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"})
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.split(":", 1)[0] != 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)
@action_decorator(detail=False, methods=["POST"])
def login_challenge(self, request, *args, **kwargs):
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)
@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
username = serializer.validated_data.get("username")
user = self.get_login_user(username)
data = self.login_response_data(user)
user_logged_in.send(sender=user.__class__, request=request, user=user)
return Response(data, status=status.HTTP_200_OK)
@action_decorator(detail=False, methods=["POST"], permission_classes=[IsAuthenticated])
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)
@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)
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
serializer.save()
return Response({}, status=status.HTTP_200_OK)
@action_decorator(detail=False, methods=["POST"], permission_classes=[IsAuthenticated])
def dashboard_url(self, request, *args, **kwargs):
get_dashboard_url = app_settings.DASHBOARD_URL_FUNC
if get_dashboard_url is None:
raise EtebaseValidationError(
"not_supported", "This server doesn't have a user dashboard.", status_code=status.HTTP_400_BAD_REQUEST
)
ret = {
"url": get_dashboard_url(request, *args, **kwargs),
}
return Response(ret)
class TestAuthenticationViewSet(viewsets.ViewSet):
allowed_methods = ["POST"]
renderer_classes = BaseViewSet.renderer_classes
parser_classes = BaseViewSet.parser_classes
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):
# 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():
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.")
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.collectionmember_set.all().delete()
user.incoming_invitations.all().delete()
# FIXME: also delete chunk files!!!
return HttpResponse()