235 lines
6.7 KiB
Elixir
235 lines
6.7 KiB
Elixir
defmodule Mobilizon.GraphQL.Resolvers.Post do
|
|
@moduledoc """
|
|
Handles the posts-related GraphQL calls
|
|
"""
|
|
|
|
import Mobilizon.Users.Guards
|
|
alias Mobilizon.{Actors, Posts, Users}
|
|
alias Mobilizon.Actors.Actor
|
|
alias Mobilizon.Federation.ActivityPub
|
|
alias Mobilizon.Federation.ActivityPub.Utils
|
|
alias Mobilizon.Posts.Post
|
|
alias Mobilizon.Storage.Page
|
|
alias Mobilizon.Users.User
|
|
import Mobilizon.Web.Gettext
|
|
|
|
require Logger
|
|
|
|
@public_accessible_visibilities [:public, :unlisted]
|
|
|
|
@doc """
|
|
Find posts for group.
|
|
|
|
Returns only if actor requesting is a member of the group
|
|
"""
|
|
def find_posts_for_group(
|
|
%Actor{id: group_id} = group,
|
|
%{page: page, limit: limit} = args,
|
|
%{
|
|
context: %{
|
|
current_user: %User{role: user_role} = user
|
|
}
|
|
} = _resolution
|
|
) do
|
|
with %Actor{id: actor_id} <- Users.get_actor_for_user(user),
|
|
{:member, true} <-
|
|
{:member, Actors.is_member?(actor_id, group_id) or is_moderator(user_role)},
|
|
%Page{} = page <- Posts.get_posts_for_group(group, page, limit) do
|
|
{:ok, page}
|
|
else
|
|
{:member, _} ->
|
|
find_posts_for_group(group, args, nil)
|
|
end
|
|
end
|
|
|
|
def find_posts_for_group(
|
|
%Actor{} = group,
|
|
%{page: page, limit: limit},
|
|
_resolution
|
|
) do
|
|
with %Page{} = page <- Posts.get_public_posts_for_group(group, page, limit) do
|
|
{:ok, page}
|
|
end
|
|
end
|
|
|
|
def find_posts_for_group(
|
|
_group,
|
|
_args,
|
|
_resolution
|
|
) do
|
|
{:ok, %Page{total: 0, elements: []}}
|
|
end
|
|
|
|
def get_post(
|
|
parent,
|
|
%{slug: slug},
|
|
%{
|
|
context: %{
|
|
current_user: %User{} = user
|
|
}
|
|
} = _resolution
|
|
) do
|
|
with {:current_actor, %Actor{id: actor_id}} <-
|
|
{:current_actor, Users.get_actor_for_user(user)},
|
|
{:post, %Post{attributed_to: %Actor{id: group_id}} = post} <-
|
|
{:post, Posts.get_post_by_slug_with_preloads(slug)},
|
|
{:member, true} <- {:member, Actors.is_member?(actor_id, group_id)} do
|
|
{:ok, post}
|
|
else
|
|
{:member, false} -> get_post(parent, %{slug: slug}, nil)
|
|
{:post, _} -> {:error, :post_not_found}
|
|
end
|
|
end
|
|
|
|
def get_post(
|
|
_parent,
|
|
%{slug: slug},
|
|
_resolution
|
|
) do
|
|
case {:post, Posts.get_post_by_slug_with_preloads(slug)} do
|
|
{:post, %Post{visibility: visibility, draft: false} = post}
|
|
when visibility in @public_accessible_visibilities ->
|
|
{:ok, post}
|
|
|
|
{:post, _} ->
|
|
{:error, :post_not_found}
|
|
end
|
|
end
|
|
|
|
def get_post(_parent, _args, _resolution) do
|
|
{:error, :post_not_found}
|
|
end
|
|
|
|
def create_post(
|
|
_parent,
|
|
%{attributed_to_id: group_id} = args,
|
|
%{
|
|
context: %{
|
|
current_user: %User{} = user
|
|
}
|
|
} = _resolution
|
|
) do
|
|
with %Actor{id: actor_id} <- Users.get_actor_for_user(user),
|
|
{:member, true} <- {:member, Actors.is_member?(actor_id, group_id)},
|
|
%Actor{} = group <- Actors.get_actor(group_id),
|
|
args <-
|
|
Map.update(args, :picture, nil, fn picture ->
|
|
process_picture(picture, group)
|
|
end),
|
|
args <- extract_pictures_from_post_body(args, actor_id),
|
|
{:ok, _, %Post{} = post} <-
|
|
ActivityPub.create(
|
|
:post,
|
|
args
|
|
|> Map.put(:author_id, actor_id)
|
|
|> Map.put(:attributed_to_id, group_id),
|
|
true,
|
|
%{}
|
|
) do
|
|
{:ok, post}
|
|
else
|
|
{:member, _} ->
|
|
{:error, dgettext("errors", "Profile is not member of group")}
|
|
|
|
{:error, error} ->
|
|
{:error, error}
|
|
end
|
|
end
|
|
|
|
def create_post(_parent, _args, _resolution) do
|
|
{:error, dgettext("errors", "You need to be logged-in to create posts")}
|
|
end
|
|
|
|
def update_post(
|
|
_parent,
|
|
%{id: id} = args,
|
|
%{
|
|
context: %{
|
|
current_user: %User{} = user
|
|
}
|
|
} = _resolution
|
|
) do
|
|
with {:uuid, {:ok, _uuid}} <- {:uuid, Ecto.UUID.cast(id)},
|
|
%Actor{id: actor_id, url: actor_url} <- Users.get_actor_for_user(user),
|
|
{:post, %Post{attributed_to: %Actor{id: group_id} = group} = post} <-
|
|
{:post, Posts.get_post_with_preloads(id)},
|
|
args <-
|
|
Map.update(args, :picture, nil, fn picture ->
|
|
process_picture(picture, group)
|
|
end),
|
|
args <- extract_pictures_from_post_body(args, actor_id),
|
|
{:member, true} <- {:member, Actors.is_member?(actor_id, group_id)},
|
|
{:ok, _, %Post{} = post} <-
|
|
ActivityPub.update(post, args, true, %{"actor" => actor_url}) do
|
|
{:ok, post}
|
|
else
|
|
{:uuid, :error} ->
|
|
{:error, dgettext("errors", "Post ID is not a valid ID")}
|
|
|
|
{:post, _} ->
|
|
{:error, dgettext("errors", "Post doesn't exist")}
|
|
|
|
{:member, _} ->
|
|
{:error, dgettext("errors", "Profile is not member of group")}
|
|
end
|
|
end
|
|
|
|
def update_post(_parent, _args, _resolution) do
|
|
{:error, dgettext("errors", "You need to be logged-in to update posts")}
|
|
end
|
|
|
|
def delete_post(
|
|
_parent,
|
|
%{id: post_id},
|
|
%{
|
|
context: %{
|
|
current_user: %User{} = user
|
|
}
|
|
} = _resolution
|
|
) do
|
|
with {:uuid, {:ok, _uuid}} <- {:uuid, Ecto.UUID.cast(post_id)},
|
|
%Actor{id: actor_id} = actor <- Users.get_actor_for_user(user),
|
|
{:post, %Post{attributed_to: %Actor{id: group_id}} = post} <-
|
|
{:post, Posts.get_post_with_preloads(post_id)},
|
|
{:member, true} <- {:member, Actors.is_member?(actor_id, group_id)},
|
|
{:ok, _, %Post{} = post} <-
|
|
ActivityPub.delete(post, actor) do
|
|
{:ok, post}
|
|
else
|
|
{:uuid, :error} ->
|
|
{:error, dgettext("errors", "Post ID is not a valid ID")}
|
|
|
|
{:post, _} ->
|
|
{:error, dgettext("errors", "Post doesn't exist")}
|
|
|
|
{:member, _} ->
|
|
{:error, dgettext("errors", "Profile is not member of group")}
|
|
end
|
|
end
|
|
|
|
def delete_post(_parent, _args, _resolution) do
|
|
{:error, dgettext("errors", "You need to be logged-in to delete posts")}
|
|
end
|
|
|
|
defp process_picture(nil, _), do: nil
|
|
defp process_picture(%{media_id: _picture_id} = args, _), do: args
|
|
|
|
defp process_picture(%{media: media}, %Actor{id: actor_id}) do
|
|
%{
|
|
file:
|
|
media
|
|
|> Map.get(:file)
|
|
|> Utils.make_media_data(description: Map.get(media, :name)),
|
|
actor_id: actor_id
|
|
}
|
|
end
|
|
|
|
@spec extract_pictures_from_post_body(map(), String.t()) :: map()
|
|
defp extract_pictures_from_post_body(%{body: body} = args, actor_id) do
|
|
pictures = Mobilizon.GraphQL.API.Utils.extract_pictures_from_body(body, actor_id)
|
|
Map.put(args, :media, pictures)
|
|
end
|
|
|
|
defp extract_pictures_from_post_body(args, _actor_id), do: args
|
|
end
|