# 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.Activity.Search do
offset = Keyword.get(options, :offset, 0)
author = Keyword.get(options, :author)
- Activity
- |> Activity.with_preloaded_object()
- |> Activity.restrict_deactivated_users()
- |> restrict_public()
- |> query_with(index_type, search_query)
- |> maybe_restrict_local(user)
- |> maybe_restrict_author(author)
- |> maybe_restrict_blocked(user)
- |> Pagination.fetch_paginated(%{"offset" => offset, "limit" => limit}, :offset)
- |> maybe_fetch(user, search_query)
+ search_function =
+ if :persistent_term.get({Pleroma.Repo, :postgres_version}) >= 11 do
+ :websearch
+ else
+ :plain
+ end
+
+ try do
+ Activity
+ |> Activity.with_preloaded_object()
+ |> Activity.restrict_deactivated_users()
+ |> restrict_public()
+ |> query_with(index_type, search_query, search_function)
+ |> maybe_restrict_local(user)
+ |> maybe_restrict_author(author)
+ |> maybe_restrict_blocked(user)
+ |> Pagination.fetch_paginated(
+ %{"offset" => offset, "limit" => limit, "skip_order" => index_type == :rum},
+ :offset
+ )
+ |> maybe_fetch(user, search_query)
+ rescue
+ _ -> maybe_fetch([], user, search_query)
+ end
end
def maybe_restrict_author(query, %User{} = author) do
def maybe_restrict_blocked(query, _), do: query
- defp restrict_public(q) do
+ def restrict_public(q) do
from([a, o] in q,
where: fragment("?->>'type' = 'Create'", a.data),
where: ^Pleroma.Constants.as_public() in a.recipients
)
end
- defp query_with(q, :gin, search_query) do
+ defp query_with(q, :gin, search_query, :plain) do
+ %{rows: [[tsc]]} =
+ Ecto.Adapters.SQL.query!(
+ Pleroma.Repo,
+ "select current_setting('default_text_search_config')::regconfig::oid;"
+ )
+
+ from([a, o] in q,
+ where:
+ fragment(
+ "to_tsvector(?::oid::regconfig, ?->>'content') @@ plainto_tsquery(?)",
+ ^tsc,
+ o.data,
+ ^search_query
+ )
+ )
+ end
+
+ defp query_with(q, :gin, search_query, :websearch) do
+ %{rows: [[tsc]]} =
+ Ecto.Adapters.SQL.query!(
+ Pleroma.Repo,
+ "select current_setting('default_text_search_config')::regconfig::oid;"
+ )
+
from([a, o] in q,
where:
fragment(
- "to_tsvector('english', ?->>'content') @@ plainto_tsquery('english', ?)",
+ "to_tsvector(?::oid::regconfig, ?->>'content') @@ websearch_to_tsquery(?)",
+ ^tsc,
o.data,
^search_query
)
)
end
- defp query_with(q, :rum, search_query) do
+ defp query_with(q, :rum, search_query, :plain) do
+ from([a, o] in q,
+ where:
+ fragment(
+ "? @@ plainto_tsquery(?)",
+ o.fts_content,
+ ^search_query
+ ),
+ order_by: [fragment("? <=> now()::date", o.inserted_at)]
+ )
+ end
+
+ defp query_with(q, :rum, search_query, :websearch) do
from([a, o] in q,
where:
fragment(
- "? @@ plainto_tsquery('english', ?)",
+ "? @@ websearch_to_tsquery(?)",
o.fts_content,
^search_query
),
)
end
- defp maybe_restrict_local(q, user) do
+ def maybe_restrict_local(q, user) do
limit = Pleroma.Config.get([:instance, :limit_to_local_content], :unauthenticated)
case {limit, user} do
defp restrict_local(q), do: where(q, local: true)
- defp maybe_fetch(activities, user, search_query) do
+ def maybe_fetch(activities, user, search_query) do
with true <- Regex.match?(~r/https?:/, search_query),
{:ok, object} <- Fetcher.fetch_object_from_id(search_query),
%Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]),