# 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.Object
alias Pleroma.Object.Fetcher
alias Pleroma.Repo
alias Pleroma.User
- import Ecto.Query
- import Ecto.Changeset
-
require Logger
+ @type t() :: %__MODULE__{}
+
+ @derive {Jason.Encoder, only: [:data]}
+
schema "objects" do
field(:data, :map)
timestamps()
end
+ def with_joined_activity(query, activity_type \\ "Create", join_type \\ :inner) do
+ object_position = Map.get(query.aliases, :object, 0)
+
+ join(query, join_type, [{object, object_position}], a in Activity,
+ on:
+ fragment(
+ "COALESCE(?->'object'->>'id', ?->>'object') = (? ->> 'id') AND (?->>'type' = ?) ",
+ a.data,
+ a.data,
+ object.data,
+ a.data,
+ ^activity_type
+ ),
+ as: :object_activity
+ )
+ end
+
def create(data) do
Object.change(%Object{}, %{data: data})
|> Repo.insert()
def get_by_id(nil), do: nil
def get_by_id(id), do: Repo.get(Object, id)
+ def get_by_id_and_maybe_refetch(id, opts \\ []) do
+ %{updated_at: updated_at} = object = get_by_id(id)
+
+ if opts[:interval] &&
+ NaiveDateTime.diff(NaiveDateTime.utc_now(), updated_at) > opts[:interval] do
+ case Fetcher.refetch_object(object) do
+ {:ok, %Object{} = object} ->
+ object
+
+ e ->
+ Logger.error("Couldn't refresh #{object.data["id"]}:\n#{inspect(e)}")
+ object
+ end
+ else
+ object
+ end
+ end
+
def get_by_ap_id(nil), do: nil
def get_by_ap_id(ap_id) do
Repo.one(from(object in Object, where: fragment("(?)->>'id' = ?", object.data, ^ap_id)))
end
- def normalize(_, fetch_remote \\ true)
+ @doc """
+ Get a single attachment by it's name and href
+ """
+ @spec get_attachment_by_name_and_href(String.t(), String.t()) :: Object.t() | nil
+ def get_attachment_by_name_and_href(name, href) do
+ query =
+ from(o in Object,
+ where: fragment("(?)->>'name' = ?", o.data, ^name),
+ where: fragment("(?)->>'href' = ?", o.data, ^href)
+ )
+
+ Repo.one(query)
+ end
+
+ defp warn_on_no_object_preloaded(ap_id) do
+ "Object.normalize() called without preloaded object (#{inspect(ap_id)}). Consider preloading the object"
+ |> Logger.debug()
+
+ Logger.debug("Backtrace: #{inspect(Process.info(:erlang.self(), :current_stacktrace))}")
+ end
+
+ def normalize(_, fetch_remote \\ true, options \\ [])
+
# If we pass an Activity to Object.normalize(), we can try to use the preloaded object.
# Use this whenever possible, especially when walking graphs in an O(N) loop!
- def normalize(%Object{} = object, _), do: object
- def normalize(%Activity{object: %Object{} = object}, _), do: object
+ def normalize(%Object{} = object, _, _), do: object
+ def normalize(%Activity{object: %Object{} = object}, _, _), do: object
# A hack for fake activities
- def normalize(%Activity{data: %{"object" => %{"fake" => true} = data}}, _) do
+ def normalize(%Activity{data: %{"object" => %{"fake" => true} = data}}, _, _) do
%Object{id: "pleroma:fake_object_id", data: data}
end
- # Catch and log Object.normalize() calls where the Activity's child object is not
- # preloaded.
- def normalize(%Activity{data: %{"object" => %{"id" => ap_id}}}, fetch_remote) do
- Logger.debug(
- "Object.normalize() called without preloaded object (#{ap_id}). Consider preloading the object!"
- )
-
- Logger.debug("Backtrace: #{inspect(Process.info(:erlang.self(), :current_stacktrace))}")
-
+ # No preloaded object
+ def normalize(%Activity{data: %{"object" => %{"id" => ap_id}}}, fetch_remote, _) do
+ warn_on_no_object_preloaded(ap_id)
normalize(ap_id, fetch_remote)
end
- def normalize(%Activity{data: %{"object" => ap_id}}, fetch_remote) do
- Logger.debug(
- "Object.normalize() called without preloaded object (#{ap_id}). Consider preloading the object!"
- )
-
- Logger.debug("Backtrace: #{inspect(Process.info(:erlang.self(), :current_stacktrace))}")
-
+ # No preloaded object
+ def normalize(%Activity{data: %{"object" => ap_id}}, fetch_remote, _) do
+ warn_on_no_object_preloaded(ap_id)
normalize(ap_id, fetch_remote)
end
# Old way, try fetching the object through cache.
- def normalize(%{"id" => ap_id}, fetch_remote), do: normalize(ap_id, fetch_remote)
- def normalize(ap_id, false) when is_binary(ap_id), do: get_cached_by_ap_id(ap_id)
- def normalize(ap_id, true) when is_binary(ap_id), do: Fetcher.fetch_object_from_id!(ap_id)
- def normalize(_, _), do: nil
+ def normalize(%{"id" => ap_id}, fetch_remote, _), do: normalize(ap_id, fetch_remote)
+ def normalize(ap_id, false, _) when is_binary(ap_id), do: get_cached_by_ap_id(ap_id)
+
+ def normalize(ap_id, true, options) when is_binary(ap_id) do
+ Fetcher.fetch_object_from_id!(ap_id, options)
+ end
+
+ 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}),
# Legacy objects can be mutated by anybody
def authorize_mutation(%Object{}, %User{}), do: true
+ @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_by_ap_id(id),
- {:ok, true} <- Cachex.del(:object_cache, "object:#{id}") do
+ 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) do
+ with true <- Pleroma.Config.get([:instance, :cleanup_attachments]) do
+ {:ok, _} =
+ Pleroma.Workers.AttachmentsCleanupWorker.enqueue("cleanup_attachments", %{
+ "object" => object
+ })
+ end
+
{:ok, object, deleted_activity}
end
end
def prune(%Object{data: %{"id" => id}} = object) do
with {:ok, object} <- Repo.delete(object),
- {:ok, true} <- Cachex.del(:object_cache, "object:#{id}") do
+ {:ok, true} <- Cachex.del(:object_cache, "object:#{id}"),
+ {:ok, _} <- Cachex.del(:web_resp_cache, URI.parse(id).path) do
{:ok, object}
end
end
def update_and_set_cache(changeset) do
with {:ok, object} <- Repo.update(changeset) do
set_cache(object)
- else
- e -> e
end
end
data:
fragment(
"""
- jsonb_set(?, '{repliesCount}',
+ safe_jsonb_set(?, '{repliesCount}',
(coalesce((?->>'repliesCount')::int, 0) + 1)::varchar::jsonb, true)
""",
o.data,
data:
fragment(
"""
- jsonb_set(?, '{repliesCount}',
+ safe_jsonb_set(?, '{repliesCount}',
(greatest(0, (?->>'repliesCount')::int - 1))::varchar::jsonb, true)
""",
o.data,
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})
_ -> :noop
end
end
+
+ @doc "Updates data field of an object"
+ def update_data(%Object{data: data} = object, attrs \\ %{}) do
+ object
+ |> Object.change(%{data: Map.merge(data || %{}, attrs)})
+ |> Repo.update()
+ end
+
+ 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