# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Object do
use Ecto.Schema
+ import Ecto.Query
+ import Ecto.Changeset
+
alias Pleroma.Activity
+ alias Pleroma.Config
alias Pleroma.Object
alias Pleroma.Object.Fetcher
alias Pleroma.ObjectTombstone
alias Pleroma.Repo
alias Pleroma.User
-
- import Ecto.Query
- import Ecto.Changeset
+ alias Pleroma.Workers.AttachmentsCleanupWorker
require Logger
@type t() :: %__MODULE__{}
+ @derive {Jason.Encoder, only: [:data]}
+
schema "objects" do
field(:data, :map)
def normalize(_, _, _), do: nil
- # Owned objects can only be mutated by their owner
- def authorize_mutation(%Object{data: %{"actor" => actor}}, %User{ap_id: ap_id}),
- do: actor == ap_id
+ # Owned objects can only be accessed by their owner
+ def authorize_access(%Object{data: %{"actor" => actor}}, %User{ap_id: ap_id}) do
+ if actor == ap_id do
+ :ok
+ else
+ {:error, :forbidden}
+ end
+ end
- # Legacy objects can be mutated by anybody
- def authorize_mutation(%Object{}, %User{}), do: true
+ # Legacy objects can be accessed by anybody
+ def authorize_access(%Object{}, %User{}), do: :ok
+ @spec get_cached_by_ap_id(String.t()) :: Object.t() | nil
def get_cached_by_ap_id(ap_id) do
key = "object:#{ap_id}"
- Cachex.fetch!(:object_cache, key, fn _ ->
- object = get_by_ap_id(ap_id)
-
- if object do
- {:commit, object}
- else
- {:ignore, object}
- end
- end)
+ with {:ok, nil} <- Cachex.get(:object_cache, key),
+ object when not is_nil(object) <- get_by_ap_id(ap_id),
+ {:ok, true} <- Cachex.put(:object_cache, key, object) do
+ object
+ else
+ {:ok, object} -> object
+ nil -> nil
+ end
end
def context_mapping(context) do
def delete(%Object{data: %{"id" => id}} = object) do
with {:ok, _obj} = swap_object_with_tombstone(object),
deleted_activity = Activity.delete_all_by_object_ap_id(id),
- {:ok, true} <- Cachex.del(:object_cache, "object:#{id}"),
- {:ok, _} <- Cachex.del(:web_resp_cache, URI.parse(id).path),
- :ok <- delete_attachments(object) do
+ {:ok, _} <- invalid_object_cache(object) do
+ cleanup_attachments(
+ Config.get([:instance, :cleanup_attachments]),
+ %{"object" => object}
+ )
+
{:ok, object, deleted_activity}
end
end
- defp delete_attachments(%{data: %{"attachment" => [_ | _] = attachments, "actor" => actor}}) do
- hrefs =
- Enum.flat_map(attachments, fn attachment ->
- Enum.map(attachment["url"], & &1["href"])
- end)
-
- names = Enum.map(attachments, & &1["name"])
-
- uploader = Pleroma.Config.get([Pleroma.Upload, :uploader])
-
- # find all objects for copies of the attachments, name and actor doesn't matter here
- delete_ids =
- from(o in Object,
- where:
- fragment(
- "to_jsonb(array(select jsonb_array_elements((?)#>'{url}') ->> 'href' where jsonb_typeof((?)#>'{url}') = 'array'))::jsonb \\?| (?)",
- o.data,
- o.data,
- ^hrefs
- )
- )
- |> Repo.all()
- # we should delete 1 object for any given attachment, but don't delete files if
- # there are more than 1 object for it
- |> Enum.reduce(%{}, fn %{
- id: id,
- data: %{
- "url" => [%{"href" => href}],
- "actor" => obj_actor,
- "name" => name
- }
- },
- acc ->
- Map.update(acc, href, %{id: id, count: 1}, fn val ->
- case obj_actor == actor and name in names do
- true ->
- # set id of the actor's object that will be deleted
- %{val | id: id, count: val.count + 1}
-
- false ->
- # another actor's object, just increase count to not delete file
- %{val | count: val.count + 1}
- end
- end)
- end)
- |> Enum.map(fn {href, %{id: id, count: count}} ->
- # only delete files that have single instance
- with 1 <- count do
- prefix =
- case Pleroma.Config.get([Pleroma.Upload, :base_url]) do
- nil -> "media"
- _ -> ""
- end
-
- base_url = Pleroma.Config.get([__MODULE__, :base_url], Pleroma.Web.base_url())
-
- file_path = String.trim_leading(href, "#{base_url}/#{prefix}")
-
- uploader.delete_file(file_path)
- end
-
- id
- end)
-
- from(o in Object, where: o.id in ^delete_ids)
- |> Repo.delete_all()
-
- :ok
+ @spec cleanup_attachments(boolean(), %{required(:object) => map()}) ::
+ {:ok, Oban.Job.t() | nil}
+ def cleanup_attachments(true, %{"object" => _} = params) do
+ AttachmentsCleanupWorker.enqueue("cleanup_attachments", params)
end
- defp delete_attachments(%{data: _data}), do: :ok
+ def cleanup_attachments(_, _), do: {:ok, nil}
- def prune(%Object{data: %{"id" => id}} = object) do
+ def prune(%Object{data: %{"id" => _id}} = object) do
with {:ok, object} <- Repo.delete(object),
- {:ok, true} <- Cachex.del(:object_cache, "object:#{id}"),
- {:ok, _} <- Cachex.del(:web_resp_cache, URI.parse(id).path) do
+ {:ok, _} <- invalid_object_cache(object) do
{:ok, object}
end
end
+ def invalid_object_cache(%Object{data: %{"id" => id}}) do
+ with {:ok, true} <- Cachex.del(:object_cache, "object:#{id}") do
+ Cachex.del(:web_resp_cache, URI.parse(id).path)
+ end
+ end
+
def set_cache(%Object{data: %{"id" => ap_id}} = object) do
Cachex.put(:object_cache, "object:#{ap_id}", object)
{:ok, object}
end
end
- def increase_vote_count(ap_id, name) do
+ def increase_vote_count(ap_id, name, actor) do
with %Object{} = object <- Object.normalize(ap_id),
"Question" <- object.data["type"] do
multiple = Map.has_key?(object.data, "anyOf")
option
end)
+ voters = [actor | object.data["voters"] || []] |> Enum.uniq()
+
data =
if multiple do
Map.put(object.data, "anyOf", options)
else
Map.put(object.data, "oneOf", options)
end
+ |> Map.put("voters", voters)
object
|> Object.change(%{data: data})
def local?(%Object{data: %{"id" => id}}) do
String.starts_with?(id, Pleroma.Web.base_url() <> "/")
end
+
+ def replies(object, opts \\ []) do
+ object = Object.normalize(object)
+
+ query =
+ Object
+ |> where(
+ [o],
+ fragment("(?)->>'inReplyTo' = ?", o.data, ^object.data["id"])
+ )
+ |> order_by([o], asc: o.id)
+
+ if opts[:self_only] do
+ actor = object.data["actor"]
+ where(query, [o], fragment("(?)->>'actor' = ?", o.data, ^actor))
+ else
+ query
+ end
+ end
+
+ def self_replies(object, opts \\ []),
+ do: replies(object, Keyword.put(opts, :self_only, true))
end
projects / akkoma / blobdiff