def retrieve(self, request, pk):
print("PostsViewSet retrieve:", request, pk)
if ServerUtil.is_server(request.user):
xUser = request.META.get("HTTP_X_REQUEST_USER_ID")
if not xUser:
return Response(
"Foreign node failed to provide required X-Header.",
status=400)
data = {"author": {"url": xUser}}
return self.__do_a_get_post(request.user, data, pk)
try:
post = Posts.objects.get(pk=pk)
except:
return Response(
{
"success": False,
"message": "No post was found with that ID",
"query": "post"
},
status=404)
if not can_user_view(request.user, post):
return Response(
{
"success": False,
"message": "You are not authorized to view this post.",
"query": "post"
},
status=status.HTTP_403_FORBIDDEN)
serializer = PostsSerializer(post, context={'request': request})
return Response({
"query": "posts",
"count": 1,
"size": 1,
"posts": [serializer.data]
})
def image(self, request, pk):
try:
post = Posts.objects.get(pk=pk)
except:
return Response(
{
"success": False,
"message": "No post was found with that ID",
"query": "getImage"
},
status=404)
if not can_user_view(request.user, post):
return Response(
{
"success": False,
"message": "You are not authorized to view this post.",
"query": "post"
},
status=status.HTTP_403_FORBIDDEN)
if (post.visibility == "PUBLIC"):
if ("," in post.content):
data = post.content.split(",")[1]
else:
data = post.content
data = data.encode()
data = base64.b64decode(data)
else:
data = post.content
return HttpResponse(data, content_type=post.contentType.split(";")[0])
def test_visible(self):
post = Posts.objects.create(**{
'title': 'Hello World',
'author': self.author1,
'visibility': "PUBLIC"
})
self.assertTrue(can_user_view(self.author2.user, post))
def test_friend_not_allowed(self):
post = Posts.objects.create(
**{
'title': 'Hello World',
'author': self.author1,
'visibility': "FRIENDS"
})
self.assertFalse(can_user_view(self.author2.user, post))
def test_server_only(self):
post = Posts.objects.create(
**{
'title': 'Hello World',
'author': self.author1,
'visibility': "SERVERONLY"
})
self.assertFalse(can_user_view(self.author2.user, post))
def test_foaf_no_mutual(self):
post = Posts.objects.create(**{
'title': 'Hello World',
'author': self.author3,
'visibility': "FOAF"
})
make_friends(self.author2, self.author3)
self.assertFalse(can_user_view(self.author1.user, post))
def create_comment(request, pk=None):
post = get_object_or_404(Posts, pk=pk)
is_server = ServerUtil.is_server(request.user)
if (not is_server and not can_user_view(request.user, post)):
return Response(status=status.HTTP_403_FORBIDDEN)
if post:
data = request.data
comment = data.get("comment", None)
if (isinstance(comment, str)):
comment = json.loads(comment)
author = comment.get('author', None)
author_id = author['id']
try:
su = ServerUtil(authorUrl=author_id)
if (is_server
and not (su.is_valid() and su.should_share_posts()
and can_external_user_view(author_id, post))):
return Response(
{
"query": "addComment",
"success": False,
"message": POST_NOT_VISIBLE,
},
status=status.HTTP_403_FORBIDDEN)
except Exception as e:
print(e)
return Response(
{
"query": "addComment",
"success": False,
"message": POST_NOT_VISIBLE,
},
status=status.HTTP_403_FORBIDDEN)
comment['author'] = author_id
serializer = CommentsSerializer(data=comment)
if serializer.is_valid():
post.comments.create(**serializer.validated_data)
return Response(
{
"query": "addComment",
"success": True,
"message": COMMENT_ADDED
},
status=status.HTTP_200_OK)
else:
return Response(
{
"query": "addComment",
"success": False,
"message": COMMENT_NOT_ALLOWED,
},
status=status.HTTP_403_FORBIDDEN)
else:
return Response(status=status.HTTP_404_NOT_FOUND)
def test_server_only_allowed(self):
post = Posts.objects.create(
**{
'title': 'Hello World',
'author': self.author1,
'visibility': "SERVERONLY"
})
make_friends(self.author1, self.author2)
self.assertTrue(can_user_view(self.author2.user, post))
def test_private_allowed(self):
post = Posts.objects.create(
**{
'title': 'Hello World',
'author': self.author1,
'visibility': "PRIVATE",
"visibleTo": [self.author2.get_url()]
})
self.assertTrue(can_user_view(self.author2.user, post))
def test_non_public_unauthenticated(self):
post = Posts.objects.create(
**{
'title': 'Hello World',
'author': self.author1,
'visibility': "PRIVATE",
"visibleTo": [self.author2.get_url()]
})
self.assertFalse(
can_user_view(MockUnauthenticatedUser(self.author2.get_url()),
post))
def list_comments(request, pk=None):
size = int(request.query_params.get("size", 5))
queryPage = int(request.query_params.get('page', 0))
if size < 1 or queryPage < 0 or size > 100:
return Response(
{
"success": False,
"message": "The query parameters were invalid",
"query": "comments"
},
status=status.HTTP_400_BAD_REQUEST)
post = get_object_or_404(Posts, pk=pk)
if not can_user_view(request.user, post):
return Response(
{
"success": False,
"message":
"You are not authorized to view this post's comments.",
"query": "comments"
},
status=status.HTTP_403_FORBIDDEN)
comments = Comments.objects.filter(post=post)
try:
paginator = Paginator(comments, size)
page = paginator.page(queryPage + 1)
serializer = CommentsSerializer(page,
many=True,
context={'request': request})
comments_to_return = serializer.data
except:
comments_to_return = []
data = {
"comments": comments_to_return,
"query": "comments",
"count": len(comments),
"size": size
}
if (len(comments_to_return) > 0):
add_page_details_to_response(request, data, page, queryPage)
return Response(data)
def get_home_feed(self, request):
size = int(request.query_params.get("size", DEFAULT_POST_PAGE_SIZE))
queryPage = int(request.query_params.get('page', 0))
if size < 1 or queryPage < 0 or size > 100:
return Response(
{
"success": False,
"message": "The query parameters were invalid",
"query": "homeFeed"
}, 400)
if request.user.is_authenticated:
requester_url = request.user.author.get_url()
posts = Posts.objects.filter(author=request.user.author,
unlisted=False)
followed = Follow.objects.filter(follower=requester_url)
localFollowedIds = []
externalPosts = []
for follow in followed:
if (is_external_host(follow.followed)):
external_host_url = follow.followed.split("/author/")[0]
sUtil = ServerUtil(authorUrl=external_host_url)
if not sUtil.valid_server():
print("authorUrl found, but not in DB",
external_host_url)
continue # We couldn't find a server that matches the friend URL base
# split the id from the URL and ask the external server about them
success, fetched_posts = sUtil.get_posts_by_author(
follow.followed.split("/author/")[1], requester_url)
if not success:
continue # We couldn't successfully fetch from an external server
externalPosts += fetched_posts["posts"]
else:
localFollowedIds.append(get_author_id(follow.followed))
posts |= Posts.objects.filter(
author__id__in=localFollowedIds,
unlisted=False).exclude(visibility="PRIVATE")
posts |= Posts.objects.filter(author__id__in=localFollowedIds,
unlisted=False,
visibility="PRIVATE",
visibleTo__contains=[requester_url])
viewable_posts = []
for post in posts:
if (can_user_view(request.user, post)):
viewable_posts.append(post)
github_stream = get_github_activity(request.user.author)
posts = merge_posts_with_github_activity(viewable_posts,
github_stream)
else:
posts = Posts.objects.filter(visibility__in=["PUBLIC"],
unlisted=False)
externalPosts = []
try:
# don't look at this
if (len(externalPosts) > 0):
serializer = PostsSerializer(posts,
many=True,
context={'request': request})
posts_to_return = serializer.data
sorted_posts = sorted(externalPosts + posts_to_return,
key=lambda x: x["published"],
reverse=True)
paginator = Paginator(sorted_posts, size)
page = paginator.page(queryPage + 1)
posts_to_return = page.object_list
else:
paginator = Paginator(posts, size)
page = paginator.page(queryPage + 1)
serializer = PostsSerializer(page,
many=True,
context={'request': request})
posts_to_return = serializer.data
except Exception as e:
print(e)
posts_to_return = []
data = {
"query": "homeFeed",
"success": True,
"posts": posts_to_return,
"count": len(posts),
"size": size
}
if len(posts_to_return) > 0:
add_page_details_to_response(request, data, page, queryPage)
return Response(data)
