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- # Pleroma: A lightweight social networking server
- # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
- # SPDX-License-Identifier: AGPL-3.0-only
-
- defmodule Mix.Tasks.Pleroma.Database do
- alias Pleroma.Conversation
- alias Pleroma.Maintenance
- alias Pleroma.Object
- alias Pleroma.Repo
- alias Pleroma.User
-
- require Logger
- require Pleroma.Constants
-
- import Ecto.Query
- import Mix.Pleroma
-
- use Mix.Task
-
- @shortdoc "A collection of database related tasks"
- @moduledoc File.read!("docs/administration/CLI_tasks/database.md")
-
- def run(["remove_embedded_objects" | args]) do
- {options, [], []} =
- OptionParser.parse(
- args,
- strict: [
- vacuum: :boolean
- ]
- )
-
- start_pleroma()
- Logger.info("Removing embedded objects")
-
- Repo.query!(
- "update activities set data = safe_jsonb_set(data, '{object}'::text[], data->'object'->'id') where data->'object'->>'id' is not null;",
- [],
- timeout: :infinity
- )
-
- if Keyword.get(options, :vacuum) do
- Maintenance.vacuum("full")
- end
- end
-
- def run(["bump_all_conversations"]) do
- start_pleroma()
- Conversation.bump_for_all_activities()
- end
-
- def run(["update_users_following_followers_counts"]) do
- start_pleroma()
-
- Repo.transaction(
- fn ->
- from(u in User, select: u)
- |> Repo.stream()
- |> Stream.each(&User.update_follower_count/1)
- |> Stream.run()
- end,
- timeout: :infinity
- )
- end
-
- def run(["prune_objects" | args]) do
- {options, [], []} =
- OptionParser.parse(
- args,
- strict: [
- vacuum: :boolean
- ]
- )
-
- start_pleroma()
-
- deadline = Pleroma.Config.get([:instance, :remote_post_retention_days])
-
- Logger.info("Pruning objects older than #{deadline} days")
-
- time_deadline =
- NaiveDateTime.utc_now()
- |> NaiveDateTime.add(-(deadline * 86_400))
-
- from(o in Object,
- where:
- fragment(
- "?->'to' \\? ? OR ?->'cc' \\? ?",
- o.data,
- ^Pleroma.Constants.as_public(),
- o.data,
- ^Pleroma.Constants.as_public()
- ),
- where: o.inserted_at < ^time_deadline,
- where:
- fragment("split_part(?->>'actor', '/', 3) != ?", o.data, ^Pleroma.Web.Endpoint.host())
- )
- |> Repo.delete_all(timeout: :infinity)
-
- prune_hashtags_query = """
- DELETE FROM hashtags AS ht
- WHERE NOT EXISTS (
- SELECT 1 FROM hashtags_objects hto
- WHERE ht.id = hto.hashtag_id)
- """
-
- Repo.query(prune_hashtags_query)
-
- if Keyword.get(options, :vacuum) do
- Maintenance.vacuum("full")
- end
- end
-
- def run(["fix_likes_collections"]) do
- start_pleroma()
-
- from(object in Object,
- where: fragment("(?)->>'likes' is not null", object.data),
- select: %{id: object.id, likes: fragment("(?)->>'likes'", object.data)}
- )
- |> Pleroma.Repo.chunk_stream(100, :batches)
- |> Stream.each(fn objects ->
- ids =
- objects
- |> Enum.filter(fn object -> object.likes |> Jason.decode!() |> is_map() end)
- |> Enum.map(& &1.id)
-
- Object
- |> where([object], object.id in ^ids)
- |> update([object],
- set: [
- data:
- fragment(
- "safe_jsonb_set(?, '{likes}', '[]'::jsonb, true)",
- object.data
- )
- ]
- )
- |> Repo.update_all([], timeout: :infinity)
- end)
- |> Stream.run()
- end
-
- def run(["vacuum", args]) do
- start_pleroma()
-
- Maintenance.vacuum(args)
- end
-
- def run(["ensure_expiration"]) do
- start_pleroma()
- days = Pleroma.Config.get([:mrf_activity_expiration, :days], 365)
-
- Pleroma.Activity
- |> join(:inner, [a], o in Object,
- on:
- fragment(
- "(?->>'id') = COALESCE((?)->'object'->> 'id', (?)->>'object')",
- o.data,
- a.data,
- a.data
- )
- )
- |> where(local: true)
- |> where([a], fragment("(? ->> 'type'::text) = 'Create'", a.data))
- |> where([_a, o], fragment("?->>'type' = 'Note'", o.data))
- |> Pleroma.Repo.chunk_stream(100, :batches)
- |> Stream.each(fn activities ->
- Enum.each(activities, fn activity ->
- expires_at =
- activity.inserted_at
- |> DateTime.from_naive!("Etc/UTC")
- |> Timex.shift(days: days)
-
- Pleroma.Workers.PurgeExpiredActivity.enqueue(%{
- activity_id: activity.id,
- expires_at: expires_at
- })
- end)
- end)
- |> Stream.run()
- end
-
- def run(["set_text_search_config", tsconfig]) do
- start_pleroma()
- %{rows: [[tsc]]} = Ecto.Adapters.SQL.query!(Pleroma.Repo, "SHOW default_text_search_config;")
- shell_info("Current default_text_search_config: #{tsc}")
-
- %{rows: [[db]]} = Ecto.Adapters.SQL.query!(Pleroma.Repo, "SELECT current_database();")
- shell_info("Update default_text_search_config: #{tsconfig}")
-
- %{messages: msg} =
- Ecto.Adapters.SQL.query!(
- Pleroma.Repo,
- "ALTER DATABASE #{db} SET default_text_search_config = '#{tsconfig}';"
- )
-
- # non-exist config will not raise excpetion but only give >0 messages
- if length(msg) > 0 do
- shell_info("Error: #{inspect(msg, pretty: true)}")
- else
- rum_enabled = Pleroma.Config.get([:database, :rum_enabled])
- shell_info("Recreate index, RUM: #{rum_enabled}")
-
- # Note SQL below needs to be kept up-to-date with latest GIN or RUM index definition in future
- if rum_enabled do
- Ecto.Adapters.SQL.query!(
- Pleroma.Repo,
- "CREATE OR REPLACE FUNCTION objects_fts_update() RETURNS trigger AS $$ BEGIN
- new.fts_content := to_tsvector(new.data->>'content');
- RETURN new;
- END
- $$ LANGUAGE plpgsql"
- )
-
- shell_info("Refresh RUM index")
- Ecto.Adapters.SQL.query!(Pleroma.Repo, "UPDATE objects SET updated_at = NOW();")
- else
- Ecto.Adapters.SQL.query!(Pleroma.Repo, "DROP INDEX IF EXISTS objects_fts;")
-
- Ecto.Adapters.SQL.query!(
- Pleroma.Repo,
- "CREATE INDEX objects_fts ON objects USING gin(to_tsvector('#{tsconfig}', data->>'content')); "
- )
- end
-
- shell_info('Done.')
- end
- end
-
- # Rolls back a specific migration (leaving subsequent migrations applied).
- # WARNING: imposes a risk of unrecoverable data loss — proceed at your own responsibility.
- # Based on https://stackoverflow.com/a/53825840
- def run(["rollback", version]) do
- prompt = "SEVERE WARNING: this operation may result in unrecoverable data loss. Continue?"
-
- if shell_prompt(prompt, "n") in ~w(Yn Y y) do
- {_, result, _} =
- Ecto.Migrator.with_repo(Pleroma.Repo, fn repo ->
- version = String.to_integer(version)
- re = ~r/^#{version}_.*\.exs/
- path = Ecto.Migrator.migrations_path(repo)
-
- with {_, "" <> file} <- {:find, Enum.find(File.ls!(path), &String.match?(&1, re))},
- {_, [{mod, _} | _]} <- {:compile, Code.compile_file(Path.join(path, file))},
- {_, :ok} <- {:rollback, Ecto.Migrator.down(repo, version, mod)} do
- {:ok, "Reversed migration: #{file}"}
- else
- {:find, _} -> {:error, "No migration found with version prefix: #{version}"}
- {:compile, e} -> {:error, "Problem compiling migration module: #{inspect(e)}"}
- {:rollback, e} -> {:error, "Problem reversing migration: #{inspect(e)}"}
- end
- end)
-
- shell_info(inspect(result))
- end
- end
- end
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