# Pleroma: A lightweight social networking server
-# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Object do
use Ecto.Schema
- alias Pleroma.{Repo, Object, User, Activity, HTML, ObjectTombstone}
- alias Pleroma.{Repo, Object, User, Activity, ObjectTombstone}
- import Ecto.{Query, Changeset}
+
+ alias Pleroma.Activity
+ alias Pleroma.Object
+ alias Pleroma.Object.Fetcher
+ alias Pleroma.ObjectTombstone
+ alias Pleroma.Repo
+ alias Pleroma.User
+
+ import Ecto.Query
+ import Ecto.Changeset
+
+ require Logger
schema "objects" do
field(:data, :map)
Repo.one(from(object in Object, where: fragment("(?)->>'id' = ?", object.data, ^ap_id)))
end
- def normalize(obj) when is_map(obj), do: Object.get_by_ap_id(obj["id"])
- def normalize(ap_id) when is_binary(ap_id), do: Object.get_by_ap_id(ap_id)
- def normalize(_), do: nil
+ def normalize(_, fetch_remote \\ true)
+ # 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(%Activity{object: %Object{} = object}, _), do: object
+
+ # A hack for fake activities
+ 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))}")
+
+ 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))}")
+
+ 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
# 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
- if Mix.env() == :test do
- def get_cached_by_ap_id(ap_id) do
- get_by_ap_id(ap_id)
- end
- else
- 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)
- end
+ 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)
end
def context_mapping(context) do
def delete(%Object{data: %{"id" => id}} = object) do
with {:ok, _obj} = swap_object_with_tombstone(object),
- Repo.delete_all(Activity.all_non_create_by_object_ap_id_q(id)),
+ deleted_activity = Activity.delete_by_ap_id(id),
{:ok, true} <- Cachex.del(:object_cache, "object:#{id}") do
- {:ok, object}
+ {:ok, object, deleted_activity}
end
end
- def get_cached_scrubbed_html(content, scrubbers, object) do
- key = "#{generate_scrubber_signature(scrubbers)}|#{object.id}"
- Cachex.fetch!(:scrubber_cache, key, fn _key -> ensure_scrubbed_html(content, scrubbers) end)
+ def set_cache(%Object{data: %{"id" => ap_id}} = object) do
+ Cachex.put(:object_cache, "object:#{ap_id}", object)
+ {:ok, object}
end
- def get_cached_stripped_html(content, object) do
- get_cached_scrubbed_html(content, HtmlSanitizeEx.Scrubber.StripTags, object)
- end
-
- def ensure_scrubbed_html(
- content,
- scrubbers
- ) do
- {:commit, HTML.filter_tags(content, scrubbers)}
+ def update_and_set_cache(changeset) do
+ with {:ok, object} <- Repo.update(changeset) do
+ set_cache(object)
+ else
+ e -> e
+ end
end
- defp generate_scrubber_signature(scrubber) when is_atom(scrubber) do
- generate_scrubber_signature([scrubber])
+ def increase_replies_count(ap_id) do
+ Object
+ |> where([o], fragment("?->>'id' = ?::text", o.data, ^to_string(ap_id)))
+ |> update([o],
+ set: [
+ data:
+ fragment(
+ """
+ jsonb_set(?, '{repliesCount}',
+ (coalesce((?->>'repliesCount')::int, 0) + 1)::varchar::jsonb, true)
+ """,
+ o.data,
+ o.data
+ )
+ ]
+ )
+ |> Repo.update_all([])
+ |> case do
+ {1, [object]} -> set_cache(object)
+ _ -> {:error, "Not found"}
+ end
end
- defp generate_scrubber_signature(scrubbers) do
- Enum.reduce(scrubbers, "", fn scrubber, signature ->
- # If a scrubber does not have a version(e.g HtmlSanitizeEx.Scrubber.StripTags) it is assumed it is always 0)
- version =
- if Kernel.function_exported?(scrubber, :version, 0) do
- scrubber.version
- else
- 0
- end
-
- "#{signature}#{to_string(scrubber)}#{version}"
- end)
+ def decrease_replies_count(ap_id) do
+ Object
+ |> where([o], fragment("?->>'id' = ?::text", o.data, ^to_string(ap_id)))
+ |> update([o],
+ set: [
+ data:
+ fragment(
+ """
+ jsonb_set(?, '{repliesCount}',
+ (greatest(0, (?->>'repliesCount')::int - 1))::varchar::jsonb, true)
+ """,
+ o.data,
+ o.data
+ )
+ ]
+ )
+ |> Repo.update_all([])
+ |> case do
+ {1, [object]} -> set_cache(object)
+ _ -> {:error, "Not found"}
+ end
end
end
projects / akkoma / blobdiff