src/social/api/views.py

   1 # This file is part of Wolne Lektury, licensed under GNU Affero GPLv3 or later.
   2 # Copyright © Fundacja Wolne Lektury. See NOTICE for more information.
   3 #
   4 from datetime import datetime
   5 from django.db.models import Q
   6 from django.http import Http404
   7 from django.utils.timezone import now, utc
   8 from rest_framework.exceptions import MethodNotAllowed
   9 from rest_framework.generics import ListAPIView, ListCreateAPIView, RetrieveAPIView, RetrieveUpdateAPIView, RetrieveUpdateDestroyAPIView, get_object_or_404
  10 from rest_framework.permissions import SAFE_METHODS, IsAuthenticated, IsAuthenticatedOrReadOnly
  11 from rest_framework.response import Response
  12 from rest_framework.views import APIView
  13 from api.models import BookUserData
  14 from api.utils import vary_on_auth, never_cache
  15 from catalogue.api.helpers import order_books, books_after
  16 from catalogue.api.serializers import BookSerializer
  17 from catalogue.models import Book
  18 import catalogue.models
  19 from social.views import get_sets_for_book_ids
  20 from social.utils import likes
  21 from social import models
  22 import bookmarks.models
  23 from . import serializers
  24 from bookmarks.api.views import BookmarkSerializer
  25
  26
  27
  28 class SettingsView(RetrieveUpdateAPIView):
  29     permission_classes = [IsAuthenticated]
  30     serializer_class = serializers.SettingsSerializer
  31
  32     def get_object(self):
  33         return models.UserProfile.get_for(self.request.user)
  34
  35
  36 @never_cache
  37 class LikeView(APIView):
  38     permission_classes = [IsAuthenticated]
  39
  40     def get(self, request, slug):
  41         book = get_object_or_404(Book, slug=slug)
  42         return Response({"likes": likes(request.user, book)})
  43
  44     def post(self, request, slug):
  45         book = get_object_or_404(Book, slug=slug)
  46         action = request.query_params.get('action', 'like')
  47         if action == 'like':
  48             models.UserList.like(request.user, book)
  49         elif action == 'unlike':
  50             models.UserList.unlike(request.user, book)
  51         return Response({})
  52
  53
  54 @never_cache
  55 class LikeView2(APIView):
  56     permission_classes = [IsAuthenticated]
  57
  58     def get(self, request, slug):
  59         book = get_object_or_404(Book, slug=slug)
  60         return Response({"likes": likes(request.user, book)})
  61
  62     def put(self, request, slug):
  63         book = get_object_or_404(Book, slug=slug)
  64         models.UserList.like(request.user, book)
  65         return Response({"likes": likes(request.user, book)})
  66
  67     def delete(self, request, slug):
  68         book = get_object_or_404(Book, slug=slug)
  69         models.UserList.unlike(request.user, book)
  70         return Response({"likes": likes(request.user, book)})
  71
  72
  73 @never_cache
  74 class LikesView(APIView):
  75     permission_classes = [IsAuthenticated]
  76
  77     def get(self, request):
  78         slugs = request.GET.getlist('slug')
  79         books = Book.objects.filter(slug__in=slugs)
  80         books = {b.id: b.slug for b in books}
  81         ids = books.keys()
  82         res = get_sets_for_book_ids(ids, request.user)
  83         res = {books[bid]: v for bid, v in res.items()}
  84
  85         return Response(res)
  86
  87
  88 @never_cache
  89 class MyLikesView(APIView):
  90     permission_classes = [IsAuthenticated]
  91
  92     def get(self, request):
  93         ul = models.UserList.get_favorites_list(request.user)
  94         if ul is None:
  95             return Response([])
  96         return Response(
  97             ul.userlistitem_set.exclude(deleted=True).exclude(book=None).values_list('book__slug', flat=True)
  98         )
  99
 100
 101 @never_cache
 102 class ListsView(ListCreateAPIView):
 103     permission_classes = [IsAuthenticated]
 104     #pagination_class = None
 105
 106     def get_serializer_class(self):
 107         if self.request.version == 'v2':
 108             return serializers.UserListSerializerV2
 109         return serializers.UserListSerializerV3
 110
 111     def get_queryset(self):
 112         return models.UserList.objects.filter(
 113             user=self.request.user,
 114             favorites=False,
 115             deleted=False
 116         )
 117
 118     def perform_create(self, serializer):
 119         serializer.save(user=self.request.user)
 120
 121
 122 def get_userlist(slug, request):
 123     if request.method in SAFE_METHODS:
 124         q = Q(deleted=False)
 125         if request.user.is_authenticated:
 126             q |= Q(user=request.user)
 127         return get_object_or_404(
 128             models.UserList,
 129             q,
 130             slug=slug,
 131         )
 132     else:
 133         return get_object_or_404(
 134             models.UserList.all_objects.all(),
 135             slug=slug,
 136             user=request.user
 137         )
 138
 139
 140 @never_cache
 141 class ListView(RetrieveUpdateDestroyAPIView):
 142     # TODO: check if can modify
 143     permission_classes = [IsAuthenticatedOrReadOnly]
 144
 145     def get_serializer_class(self):
 146         if self.request.version == 'v2':
 147             return serializers.UserListSerializerV2
 148         return serializers.UserListSerializerV3
 149
 150     def get_object(self):
 151         return get_userlist(self.kwargs['slug'], self.request)
 152
 153     def perform_update(self, serializer):
 154         serializer.save(user=self.request.user)
 155
 156     def post(self, request, slug):
 157         if request.version == 'v2':
 158             # Accept posting a list of books here.
 159             serializer = serializers.UserListBooksSerializer(data=request.data)
 160             serializer.is_valid(raise_exception=True)
 161             instance = self.get_object()
 162             for book in serializer.validated_data['books']:
 163                 instance.append(book)
 164             return Response(self.get_serializer(instance).data)
 165         else:
 166             raise MethodNotAllowed(method=request.method)
 167
 168     def perform_destroy(self, instance):
 169         instance.deleted = True
 170         instance.updated_at = now()
 171         instance.save()
 172
 173
 174 @never_cache
 175 class ListItemViewV2(APIView):
 176     """v2 only"""
 177     permission_classes = [IsAuthenticated]
 178
 179     def delete(self, request, slug, book):
 180         instance = get_object_or_404(
 181             models.UserList, slug=slug, user=self.request.user)
 182         book = get_object_or_404(catalogue.models.Book, slug=book)
 183         instance.remove(book=book)
 184         return Response(serializers.UserListSerializerV2(instance).data)
 185
 186
 187 @never_cache
 188 class ListItemListViewV3(ListCreateAPIView):
 189     permission_classes = [IsAuthenticatedOrReadOnly]
 190     serializer_class = serializers.UserListItemSerializer
 191
 192     def get_queryset(self):
 193         lst = get_userlist(self.kwargs['slug'], self.request)
 194         return lst.userlistitem_set.all()
 195
 196
 197 @never_cache
 198 class ListItemViewV3(RetrieveUpdateDestroyAPIView):
 199     permission_classes = [IsAuthenticated]
 200     serializer_class = serializers.UserListItemSerializer
 201     lookup_field = 'uuid'
 202
 203     def get_queryset(self):
 204         return models.UserListItem.objects.filter(
 205             list__user=self.request.user
 206         )
 207
 208
 209 @vary_on_auth
 210 class ShelfView(ListAPIView):
 211     permission_classes = [IsAuthenticated]
 212     serializer_class = BookSerializer
 213     pagination_class = None
 214
 215     def get_queryset(self):
 216         state = self.kwargs['state']
 217         if state not in ('reading', 'complete', 'likes'):
 218             raise Http404
 219         new_api = self.request.query_params.get('new_api')
 220         after = self.request.query_params.get('after')
 221         count = int(self.request.query_params.get('count', 50))
 222         if state == 'likes':
 223             books = Book.objects.filter(userlistitem__list__user=self.request.user)
 224         else:
 225             ids = BookUserData.objects.filter(user=self.request.user, complete=state == 'complete')\
 226                 .values_list('book_id', flat=True)
 227             books = Book.objects.filter(id__in=list(ids)).distinct()
 228             books = order_books(books, new_api)
 229         if after:
 230             books = books_after(books, after, new_api)
 231         if count:
 232             books = books[:count]
 233
 234         return books
 235
 236
 237 @never_cache
 238 class ProgressListView(ListAPIView):
 239     permission_classes = [IsAuthenticated]
 240     serializer_class = serializers.ProgressSerializer
 241
 242     def get_queryset(self):
 243         return models.Progress.objects.filter(user=self.request.user).order_by('-updated_at')
 244
 245
 246 class ProgressMixin:
 247     def get_object(self):
 248         try:
 249             return models.Progress.objects.get(user=self.request.user, book__slug=self.kwargs['slug'])
 250         except models.Progress.DoesNotExist:
 251             book = get_object_or_404(Book, slug=self.kwargs['slug'])
 252             return models.Progress(user=self.request.user, book=book)
 253
 254
 255
 256 @never_cache
 257 class ProgressView(ProgressMixin, RetrieveAPIView):
 258     permission_classes = [IsAuthenticated]
 259     serializer_class = serializers.ProgressSerializer
 260
 261
 262 @never_cache
 263 class TextProgressView(ProgressMixin, RetrieveUpdateAPIView):
 264     permission_classes = [IsAuthenticated]
 265     serializer_class = serializers.TextProgressSerializer
 266
 267     def perform_update(self, serializer):
 268         serializer.instance.last_mode = 'text'
 269         serializer.save()
 270
 271
 272 @never_cache
 273 class AudioProgressView(ProgressMixin, RetrieveUpdateAPIView):
 274     permission_classes = [IsAuthenticated]
 275     serializer_class = serializers.AudioProgressSerializer
 276
 277     def perform_update(self, serializer):
 278         serializer.instance.last_mode = 'audio'
 279         serializer.save()
 280
 281
 282
 283 @never_cache
 284 class SyncView(ListAPIView):
 285     permission_classes = [IsAuthenticated]
 286     sync_id_field = 'slug'
 287     sync_id_serializer_field = 'slug'
 288     sync_user_field = 'user'
 289
 290     def get_queryset(self):
 291         try:
 292             timestamp = int(self.request.GET.get('ts'))
 293         except:
 294             timestamp = 0
 295
 296         timestamp = datetime.fromtimestamp(timestamp, tz=utc)
 297
 298         data = []
 299         return self.get_queryset_for_ts(timestamp)
 300
 301     def get_queryset_for_ts(self, timestamp):
 302         return self.model.objects.filter(
 303             updated_at__gt=timestamp,
 304             **{
 305                 self.sync_user_field: self.request.user
 306             }
 307         ).order_by('updated_at')
 308
 309     def get_instance(self, user, data):
 310         sync_id = data.get(self.sync_id_serializer_field)
 311         if not sync_id:
 312             return None
 313         return self.model.objects.filter(**{
 314             self.sync_user_field: user,
 315             self.sync_id_field: sync_id
 316         }).first()
 317
 318     def post(self, request):
 319         new_ids = []
 320         data = request.data
 321         if not isinstance(data, list):
 322             raise serializers.ValidationError('Payload should be a list')
 323         for item in data:
 324             instance = self.get_instance(request.user, item)
 325             ser = self.get_serializer(
 326                 instance=instance,
 327                 data=item
 328             )
 329             ser.is_valid(raise_exception=True)
 330             synced_instance = self.model.sync(
 331                 request.user,
 332                 instance,
 333                 ser.validated_data
 334             )
 335             if instance is None and 'client_id' in ser.validated_data and synced_instance is not None:
 336                 new_ids.append({
 337                     'client_id': ser.validated_data['client_id'],
 338                     self.sync_id_serializer_field: getattr(synced_instance, self.sync_id_field),
 339                 })
 340         return Response(new_ids)
 341
 342
 343 class ProgressSyncView(SyncView):
 344     model = models.Progress
 345     serializer_class = serializers.ProgressSerializer
 346
 347     sync_id_field = 'book__slug'
 348     sync_id_serializer_field = 'book_slug'
 349
 350
 351 class UserListSyncView(SyncView):
 352     model = models.UserList
 353
 354     def get_serializer_class(self):
 355         if self.request.version == 'v2':
 356             return serializers.UserListSerializerV2
 357         return serializers.UserListSerializerV3
 358
 359
 360 class UserListItemSyncView(SyncView):
 361     model = models.UserListItem
 362     serializer_class = serializers.UserListItemSerializer
 363
 364     sync_id_field = 'uuid'
 365     sync_id_serializer_field = 'uuid'
 366     sync_user_field = 'list__user'
 367
 368     def get_queryset_for_ts(self, timestamp):
 369         qs = self.model.all_objects.filter(
 370             updated_at__gt=timestamp,
 371             **{
 372                 self.sync_user_field: self.request.user
 373             }
 374         )
 375         if self.request.query_params.get('favorites'):
 376             qs = qs.filter(list__favorites=True)
 377         return qs.order_by('updated_at')
 378
 379
 380 class BookmarkSyncView(SyncView):
 381     model = bookmarks.models.Bookmark
 382     serializer_class = BookmarkSerializer
 383
 384     sync_id_field = 'uuid'
 385     sync_id_serializer_field = 'uuid'
 386
 387     def get_instance(self, user, data):
 388         ret = super().get_instance(user, data)
 389         if ret is None:
 390             if data.get('location'):
 391                 ret = self.model.get_by_location(user, data['location'])
 392         return ret