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diff --git a/lib/pleroma/search/database_search.ex b/lib/pleroma/search/database_search.ex
index 5a8b8ca67..3735a5fab 100644
--- a/lib/pleroma/search/database_search.ex
+++ b/lib/pleroma/search/database_search.ex
@@ -1,153 +1,158 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Search.DatabaseSearch do
alias Pleroma.Activity
alias Pleroma.Object.Fetcher
alias Pleroma.Pagination
alias Pleroma.User
alias Pleroma.Web.ActivityPub.Visibility
require Pleroma.Constants
import Ecto.Query
+ @behaviour Pleroma.Search.SearchBackend
+
def search(user, search_query, options \\ []) do
index_type = if Pleroma.Config.get([:database, :rum_enabled]), do: :rum, else: :gin
limit = Enum.min([Keyword.get(options, :limit), 40])
offset = Keyword.get(options, :offset, 0)
author = Keyword.get(options, :author)
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
+ @impl true
def add_to_index(_activity), do: nil
+
+ @impl true
def remove_from_index(_object), do: nil
def maybe_restrict_author(query, %User{} = author) do
Activity.Queries.by_author(query, author)
end
def maybe_restrict_author(query, _), do: query
def maybe_restrict_blocked(query, %User{} = user) do
Activity.Queries.exclude_authors(query, User.blocked_users_ap_ids(user))
end
def maybe_restrict_blocked(query, _), do: query
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, :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(?::oid::regconfig, ?->>'content') @@ websearch_to_tsquery(?)",
^tsc,
o.data,
^search_query
)
)
end
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(
"? @@ websearch_to_tsquery(?)",
o.fts_content,
^search_query
),
order_by: [fragment("? <=> now()::date", o.inserted_at)]
)
end
def maybe_restrict_local(q, user) do
limit = Pleroma.Config.get([:instance, :limit_to_local_content], :unauthenticated)
case {limit, user} do
{:all, _} -> restrict_local(q)
{:unauthenticated, %User{}} -> q
{:unauthenticated, _} -> restrict_local(q)
{false, _} -> q
end
end
defp restrict_local(q), do: where(q, local: true)
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"]),
true <- Visibility.visible_for_user?(activity, user) do
[activity | activities]
else
_ -> activities
end
end
end
diff --git a/lib/pleroma/search/meilisearch.ex b/lib/pleroma/search/meilisearch.ex
index 21b44de86..33bbf8392 100644
--- a/lib/pleroma/search/meilisearch.ex
+++ b/lib/pleroma/search/meilisearch.ex
@@ -1,165 +1,169 @@
defmodule Pleroma.Search.Meilisearch do
require Logger
require Pleroma.Constants
alias Pleroma.Activity
import Pleroma.Search.DatabaseSearch
import Ecto.Query
+ @behaviour Pleroma.Search.SearchBackend
+
defp meili_headers do
private_key = Pleroma.Config.get([Pleroma.Search.Meilisearch, :private_key])
[{"Content-Type", "application/json"}] ++
if is_nil(private_key), do: [], else: [{"X-Meili-API-Key", private_key}]
end
def meili_get(path) do
endpoint = Pleroma.Config.get([Pleroma.Search.Meilisearch, :url])
result =
Pleroma.HTTP.get(
Path.join(endpoint, path),
meili_headers()
)
with {:ok, res} <- result do
{:ok, Jason.decode!(res.body)}
end
end
def meili_post(path, params) do
endpoint = Pleroma.Config.get([Pleroma.Search.Meilisearch, :url])
result =
Pleroma.HTTP.post(
Path.join(endpoint, path),
Jason.encode!(params),
meili_headers()
)
with {:ok, res} <- result do
{:ok, Jason.decode!(res.body)}
end
end
def meili_put(path, params) do
endpoint = Pleroma.Config.get([Pleroma.Search.Meilisearch, :url])
result =
Pleroma.HTTP.request(
:put,
Path.join(endpoint, path),
Jason.encode!(params),
meili_headers(),
[]
)
with {:ok, res} <- result do
{:ok, Jason.decode!(res.body)}
end
end
def meili_delete!(path) do
endpoint = Pleroma.Config.get([Pleroma.Search.Meilisearch, :url])
{:ok, _} =
Pleroma.HTTP.request(
:delete,
Path.join(endpoint, path),
"",
meili_headers(),
[]
)
end
def search(user, query, options \\ []) do
limit = Enum.min([Keyword.get(options, :limit), 40])
offset = Keyword.get(options, :offset, 0)
author = Keyword.get(options, :author)
res =
meili_post(
"/indexes/objects/search",
%{q: query, offset: offset, limit: limit}
)
with {:ok, result} <- res do
hits = result["hits"] |> Enum.map(& &1["ap"])
try do
hits
|> Activity.create_by_object_ap_id()
|> Activity.with_preloaded_object()
|> Activity.with_preloaded_object()
|> Activity.restrict_deactivated_users()
|> maybe_restrict_local(user)
|> maybe_restrict_author(author)
|> maybe_restrict_blocked(user)
|> maybe_fetch(user, query)
|> order_by([object: obj], desc: obj.data["published"])
|> Pleroma.Repo.all()
rescue
_ -> maybe_fetch([], user, query)
end
end
end
def object_to_search_data(object) do
# Only index public or unlisted Notes
if not is_nil(object) and object.data["type"] == "Note" and
not is_nil(object.data["content"]) and
(Pleroma.Constants.as_public() in object.data["to"] or
Pleroma.Constants.as_public() in object.data["cc"]) and
String.length(object.data["content"]) > 1 do
data = object.data
content_str =
case data["content"] do
[nil | rest] -> to_string(rest)
str -> str
end
content =
with {:ok, scrubbed} <- FastSanitize.strip_tags(content_str),
trimmed <- String.trim(scrubbed) do
trimmed
end
if String.length(content) > 1 do
{:ok, published, _} = DateTime.from_iso8601(data["published"])
%{
id: object.id,
content: content,
ap: data["id"],
published: published |> DateTime.to_unix()
}
end
end
end
+ @impl true
def add_to_index(activity) do
maybe_search_data = object_to_search_data(activity.object)
if activity.data["type"] == "Create" and maybe_search_data do
result =
meili_put(
"/indexes/objects/documents",
[maybe_search_data]
)
with {:ok, res} <- result,
true <- Map.has_key?(res, "updateId") do
# Do nothing
else
_ ->
Logger.error("Failed to add activity #{activity.id} to index: #{inspect(result)}")
end
end
end
+ @impl true
def remove_from_index(object) do
meili_delete!("/indexes/objects/documents/#{object.id}")
end
end
diff --git a/lib/pleroma/search/search_backend.ex b/lib/pleroma/search/search_backend.ex
new file mode 100644
index 000000000..ed6bfd329
--- /dev/null
+++ b/lib/pleroma/search/search_backend.ex
@@ -0,0 +1,17 @@
+defmodule Pleroma.Search.SearchBackend do
+ @doc """
+ Add the object associated with the activity to the search index.
+
+ The whole activity is passed, to allow filtering on things such as scope.
+ """
+ @callback add_to_index(activity :: Pleroma.Activity.t()) :: nil
+
+ @doc """
+ Remove the object from the index.
+
+ Just the object, as opposed to the whole activity, is passed, since the object
+ is what contains the actual content and there is no need for fitlering when removing
+ from index.
+ """
+ @callback remove_from_index(object :: Pleroma.Object.t()) :: nil
+end

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