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
 191     def get_queryset(self):
 192         lst = get_userlist(self.kwargs['slug'], self.request)
 193         return lst.userlistitem_set.all().order_by('order')
 194
 195     def get_serializer_class(self):
 196         if self.request.method == 'GET':
 197             return serializers.UserListItemReadSerializer
 198         else:
 199             return serializers.UserListItemSerializer
 200
 201     def get_serializer(self, *args, **kwargs):
 202         serializer_class = self.get_serializer_class()
 203         kwargs.setdefault('context', self.get_serializer_context())
 204
 205         if isinstance(self.request.data, list):
 206             kwargs['many'] = True
 207
 208         return serializer_class(*args, **kwargs)
 209
 210     def perform_create(self, serializer):
 211         lst = get_userlist(self.kwargs['slug'], self.request)
 212         serializer.save(list=lst)
 213
 214
 215 @never_cache
 216 class ListItemViewV3(RetrieveUpdateDestroyAPIView):
 217     permission_classes = [IsAuthenticated]
 218     lookup_field = 'uuid'
 219
 220     def get_queryset(self):
 221         return models.UserListItem.objects.filter(
 222             list__user=self.request.user
 223         )
 224
 225     def get_serializer_class(self):
 226         if self.request.method == 'GET':
 227             return serializers.UserListItemReadSerializer
 228         else:
 229             return serializers.UserListItemSerializer
 230
 231
 232 @vary_on_auth
 233 class ShelfView(ListAPIView):
 234     permission_classes = [IsAuthenticated]
 235     serializer_class = BookSerializer
 236     pagination_class = None
 237
 238     def get_queryset(self):
 239         state = self.kwargs['state']
 240         if state not in ('reading', 'complete', 'likes'):
 241             raise Http404
 242         new_api = self.request.query_params.get('new_api')
 243         after = self.request.query_params.get('after')
 244         count = int(self.request.query_params.get('count', 50))
 245         if state == 'likes':
 246             books = Book.objects.filter(userlistitem__list__user=self.request.user)
 247         else:
 248             ids = BookUserData.objects.filter(user=self.request.user, complete=state == 'complete')\
 249                 .values_list('book_id', flat=True)
 250             books = Book.objects.filter(id__in=list(ids)).distinct()
 251             books = order_books(books, new_api)
 252         if after:
 253             books = books_after(books, after, new_api)
 254         if count:
 255             books = books[:count]
 256
 257         return books
 258
 259
 260 @never_cache
 261 class ProgressListView(ListAPIView):
 262     permission_classes = [IsAuthenticated]
 263     serializer_class = serializers.ProgressSerializer
 264
 265     def get_queryset(self):
 266         return models.Progress.objects.filter(user=self.request.user).order_by('-updated_at')
 267
 268
 269 class ProgressMixin:
 270     def get_object(self):
 271         try:
 272             return models.Progress.objects.get(user=self.request.user, book__slug=self.kwargs['slug'])
 273         except models.Progress.DoesNotExist:
 274             book = get_object_or_404(Book, slug=self.kwargs['slug'])
 275             return models.Progress(user=self.request.user, book=book)
 276
 277
 278
 279 @never_cache
 280 class ProgressView(ProgressMixin, RetrieveAPIView):
 281     permission_classes = [IsAuthenticated]
 282     serializer_class = serializers.ProgressSerializer
 283
 284
 285 @never_cache
 286 class TextProgressView(ProgressMixin, RetrieveUpdateAPIView):
 287     permission_classes = [IsAuthenticated]
 288     serializer_class = serializers.TextProgressSerializer
 289
 290     def perform_update(self, serializer):
 291         serializer.instance.reported_timestamp = now()
 292         serializer.instance.last_mode = 'text'
 293         serializer.save()
 294
 295
 296 @never_cache
 297 class AudioProgressView(ProgressMixin, RetrieveUpdateAPIView):
 298     permission_classes = [IsAuthenticated]
 299     serializer_class = serializers.AudioProgressSerializer
 300
 301     def perform_update(self, serializer):
 302         serializer.instance.reported_timestamp = now()
 303         serializer.instance.last_mode = 'audio'
 304         serializer.save()
 305
 306
 307
 308 @never_cache
 309 class SyncView(ListAPIView):
 310     permission_classes = [IsAuthenticated]
 311     sync_id_field = 'slug'
 312     sync_id_serializer_field = 'slug'
 313     sync_user_field = 'user'
 314
 315     def get_queryset(self):
 316         try:
 317             timestamp = int(self.request.GET.get('ts'))
 318         except:
 319             timestamp = 0
 320
 321         timestamp = datetime.fromtimestamp(timestamp, tz=utc)
 322
 323         data = []
 324         return self.get_queryset_for_ts(timestamp)
 325
 326     def get_queryset_for_ts(self, timestamp):
 327         return self.model.objects.filter(
 328             updated_at__gt=timestamp,
 329             **{
 330                 self.sync_user_field: self.request.user
 331             }
 332         ).order_by('updated_at')
 333
 334     def get_instance(self, user, data):
 335         sync_id = data.get(self.sync_id_serializer_field)
 336         if not sync_id:
 337             return None
 338         return self.model.objects.filter(**{
 339             self.sync_user_field: user,
 340             self.sync_id_field: sync_id
 341         }).first()
 342
 343     def post(self, request):
 344         new_ids = []
 345         data = request.data
 346         if not isinstance(data, list):
 347             raise serializers.ValidationError('Payload should be a list')
 348         for item in data:
 349             instance = self.get_instance(request.user, item)
 350             ser = self.get_serializer(
 351                 instance=instance,
 352                 data=item
 353             )
 354             ser.is_valid(raise_exception=True)
 355             synced_instance = self.model.sync(
 356                 request.user,
 357                 instance,
 358                 ser.validated_data
 359             )
 360             if instance is None and 'client_id' in ser.validated_data and synced_instance is not None:
 361                 new_ids.append({
 362                     'client_id': ser.validated_data['client_id'],
 363                     self.sync_id_serializer_field: getattr(synced_instance, self.sync_id_field),
 364                 })
 365         return Response(new_ids)
 366
 367
 368 class ProgressSyncView(SyncView):
 369     model = models.Progress
 370     serializer_class = serializers.ProgressSerializer
 371
 372     sync_id_field = 'book__slug'
 373     sync_id_serializer_field = 'book_slug'
 374
 375
 376 class UserListSyncView(SyncView):
 377     model = models.UserList
 378
 379     def get_serializer_class(self):
 380         if self.request.version == 'v2':
 381             return serializers.UserListSerializerV2
 382         return serializers.UserListSerializerV3
 383
 384
 385 class UserListItemSyncView(SyncView):
 386     model = models.UserListItem
 387     serializer_class = serializers.UserListItemSerializer
 388
 389     sync_id_field = 'uuid'
 390     sync_id_serializer_field = 'uuid'
 391     sync_user_field = 'list__user'
 392
 393     def get_queryset_for_ts(self, timestamp):
 394         qs = self.model.all_objects.filter(
 395             updated_at__gt=timestamp,
 396             **{
 397                 self.sync_user_field: self.request.user
 398             }
 399         )
 400         if self.request.query_params.get('favorites'):
 401             qs = qs.filter(list__favorites=True)
 402         return qs.order_by('updated_at')
 403
 404
 405 class BookmarkSyncView(SyncView):
 406     model = bookmarks.models.Bookmark
 407     serializer_class = BookmarkSerializer
 408
 409     sync_id_field = 'uuid'
 410     sync_id_serializer_field = 'uuid'
 411
 412     def get_instance(self, user, data):
 413         ret = super().get_instance(user, data)
 414         if ret is None:
 415             if data.get('location'):
 416                 ret = self.model.get_by_location(user, data['location'])
 417         return ret