# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Object do
alias Pleroma.Activity
alias Pleroma.Config
+ alias Pleroma.Hashtag
alias Pleroma.Object
alias Pleroma.Object.Fetcher
alias Pleroma.ObjectTombstone
schema "objects" do
field(:data, :map)
+ many_to_many(:hashtags, Hashtag, join_through: "hashtags_objects", on_replace: :delete)
+
timestamps()
end
end
def create(data) do
- Object.change(%Object{}, %{data: data})
+ %Object{}
+ |> Object.change(%{data: data})
|> Repo.insert()
end
|> cast(params, [:data])
|> validate_required([:data])
|> unique_constraint(:ap_id, name: :objects_unique_apid_index)
+ # Expecting `maybe_handle_hashtags_change/1` to run last:
+ |> maybe_handle_hashtags_change(struct)
+ end
+
+ # Note: not checking activity type (assuming non-legacy objects are associated with Create act.)
+ defp maybe_handle_hashtags_change(changeset, struct) do
+ with %Ecto.Changeset{valid?: true} <- changeset,
+ data_hashtags_change = get_change(changeset, :data),
+ {_, true} <- {:changed, hashtags_changed?(struct, data_hashtags_change)},
+ {:ok, hashtag_records} <-
+ data_hashtags_change
+ |> object_data_hashtags()
+ |> Hashtag.get_or_create_by_names() do
+ put_assoc(changeset, :hashtags, hashtag_records)
+ else
+ %{valid?: false} ->
+ changeset
+
+ {:changed, false} ->
+ changeset
+
+ {:error, _} ->
+ validate_change(changeset, :data, fn _, _ ->
+ [data: "error referencing hashtags"]
+ end)
+ end
end
+ defp hashtags_changed?(%Object{} = struct, %{"tag" => _} = data) do
+ Enum.sort(embedded_hashtags(struct)) !=
+ Enum.sort(object_data_hashtags(data))
+ end
+
+ defp hashtags_changed?(_, _), do: false
+
def get_by_id(nil), do: nil
def get_by_id(id), do: Repo.get(Object, id)
Logger.debug("Backtrace: #{inspect(Process.info(:erlang.self(), :current_stacktrace))}")
end
- def normalize(_, fetch_remote \\ true, options \\ [])
+ def normalize(_, options \\ [fetch: false, id_only: false])
# 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
# No preloaded object
- def normalize(%Activity{data: %{"object" => %{"id" => ap_id}}}, fetch_remote, _) do
+ def normalize(%Activity{data: %{"object" => %{"id" => ap_id}}}, options) do
warn_on_no_object_preloaded(ap_id)
- normalize(ap_id, fetch_remote)
+ normalize(ap_id, options)
end
# No preloaded object
- def normalize(%Activity{data: %{"object" => ap_id}}, fetch_remote, _) do
+ def normalize(%Activity{data: %{"object" => ap_id}}, options) do
warn_on_no_object_preloaded(ap_id)
- normalize(ap_id, fetch_remote)
+ normalize(ap_id, options)
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(%{"id" => ap_id}, options), do: normalize(ap_id, options)
+
+ def normalize(ap_id, options) when is_binary(ap_id) do
+ cond do
+ Keyword.get(options, :id_only) ->
+ ap_id
- def normalize(ap_id, true, options) when is_binary(ap_id) do
- Fetcher.fetch_object_from_id!(ap_id, options)
+ Keyword.get(options, :fetch) ->
+ Fetcher.fetch_object_from_id!(ap_id, options)
+
+ true ->
+ get_cached_by_ap_id(ap_id)
+ end
end
- def normalize(_, _, _), do: nil
+ def normalize(_, _), do: nil
# Owned objects can only be accessed by their owner
def authorize_access(%Object{data: %{"actor" => actor}}, %User{ap_id: ap_id}) do
end
end
- def context_mapping(context) do
- Object.change(%Object{}, %{data: %{"id" => context}})
- end
-
def make_tombstone(%Object{data: %{"id" => id, "type" => type}}, deleted \\ DateTime.utc_now()) do
%ObjectTombstone{
id: id,
def swap_object_with_tombstone(object) do
tombstone = make_tombstone(object)
- object
- |> Object.change(%{data: tombstone})
- |> Repo.update()
+ with {:ok, object} <-
+ object
+ |> Object.change(%{data: tombstone})
+ |> Repo.update() do
+ Hashtag.unlink(object)
+ {:ok, object}
+ end
end
def delete(%Object{data: %{"id" => id}} = object) do
{:ok, _} <- invalid_object_cache(object) do
cleanup_attachments(
Config.get([:instance, :cleanup_attachments]),
- %{"object" => object}
+ %{object: object}
)
{:ok, object, deleted_activity}
@spec cleanup_attachments(boolean(), %{required(:object) => map()}) ::
{:ok, Oban.Job.t() | nil}
- def cleanup_attachments(true, %{"object" => _} = params) do
+ def cleanup_attachments(true, %{object: _} = params) do
AttachmentsCleanupWorker.enqueue("cleanup_attachments", params)
end
end
def increase_vote_count(ap_id, name, actor) do
- with %Object{} = object <- Object.normalize(ap_id),
+ with %Object{} = object <- Object.normalize(ap_id, fetch: false),
"Question" <- object.data["type"] do
key = if poll_is_multiple?(object), do: "anyOf", else: "oneOf"
end
def local?(%Object{data: %{"id" => id}}) do
- String.starts_with?(id, Pleroma.Web.base_url() <> "/")
+ String.starts_with?(id, Pleroma.Web.Endpoint.url() <> "/")
end
def replies(object, opts \\ []) do
- object = Object.normalize(object)
+ object = Object.normalize(object, fetch: false)
query =
Object
def self_replies(object, opts \\ []),
do: replies(object, Keyword.put(opts, :self_only, true))
+
+ def tags(%Object{data: %{"tag" => tags}}) when is_list(tags), do: tags
+
+ def tags(_), do: []
+
+ def hashtags(%Object{} = object) do
+ # Note: always using embedded hashtags regardless whether they are migrated to hashtags table
+ # (embedded hashtags stay in sync anyways, and we avoid extra joins and preload hassle)
+ embedded_hashtags(object)
+ end
+
+ def embedded_hashtags(%Object{data: data}) do
+ object_data_hashtags(data)
+ end
+
+ def embedded_hashtags(_), do: []
+
+ def object_data_hashtags(%{"tag" => tags}) when is_list(tags) do
+ tags
+ |> Enum.filter(fn
+ %{"type" => "Hashtag"} = data -> Map.has_key?(data, "name")
+ plain_text when is_bitstring(plain_text) -> true
+ _ -> false
+ end)
+ |> Enum.map(fn
+ %{"name" => "#" <> hashtag} -> String.downcase(hashtag)
+ %{"name" => hashtag} -> String.downcase(hashtag)
+ hashtag when is_bitstring(hashtag) -> String.downcase(hashtag)
+ end)
+ |> Enum.uniq()
+ # Note: "" elements (plain text) might occur in `data.tag` for incoming objects
+ |> Enum.filter(&(&1 not in [nil, ""]))
+ end
+
+ def object_data_hashtags(_), do: []
end
projects / akkoma / blobdiff