Detail backup states

lib/pleroma/ecto_enums.ex

@@ -27,3 +27,11 @@
   failed: 4,
   manual: 5
 )
+
+defenum(Pleroma.User.Backup.State,
+  pending: 1,
+  running: 2,
+  complete: 3,
+  failed: 4,
+  invalid: 5
+)

lib/pleroma/user/backup.ex

@@ -15,6 +15,7 @@ defmodule Pleroma.User.Backup do
   alias Pleroma.Bookmark
   alias Pleroma.Repo
   alias Pleroma.User
+  alias Pleroma.User.Backup.State
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Transmogrifier
   alias Pleroma.Web.ActivityPub.UserView
@@ -25,12 +26,16 @@ defmodule Pleroma.User.Backup do
     field(:file_name, :string)
     field(:file_size, :integer, default: 0)
     field(:processed, :boolean, default: false)
+    field(:state, State, default: :invalid)
+    field(:processed_number, :integer, default: 0)
 
     belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
 
     timestamps()
   end
 
+  @report_every 100
+
   def create(user, admin_id \\ nil) do
     with :ok <- validate_limit(user, admin_id),
          {:ok, backup} <- user |> new() |> Repo.insert() do
@@ -46,7 +51,8 @@ def new(user) do
     %__MODULE__{
       user_id: user.id,
       content_type: "application/zip",
-      file_name: name
+      file_name: name,
+      state: :pending
     }
   end
 
@@ -109,27 +115,75 @@ def remove_outdated(%__MODULE__{id: latest_id, user_id: user_id}) do
 
   def get(id), do: Repo.get(__MODULE__, id)
 
+  defp set_state(backup, state, processed_number \\ nil) do
+    struct =
+      %{state: state}
+      |> Pleroma.Maps.put_if_present(:processed_number, processed_number)
+
+    backup
+    |> cast(struct, [:state, :processed_number])
+    |> Repo.update()
+  end
+
   def process(%__MODULE__{} = backup) do
-    with {:ok, zip_file} <- export(backup),
-         {:ok, %{size: size}} <- File.stat(zip_file),
-         {:ok, _upload} <- upload(backup, zip_file) do
-      backup
-      |> cast(%{file_size: size, processed: true}, [:file_size, :processed])
-      |> Repo.update()
+    set_state(backup, :running, 0)
+
+    current_pid = self()
+
+    Task.Supervisor.async_nolink(
+      Pleroma.TaskSupervisor,
+      fn ->
+        with {:ok, zip_file} <- export(backup, current_pid),
+             {:ok, %{size: size}} <- File.stat(zip_file),
+             {:ok, _upload} <- upload(backup, zip_file) do
+          backup
+          |> cast(
+            %{
+              file_size: size,
+              processed: true,
+              state: :complete
+            },
+            [:file_size, :processed, :state]
+          )
+          |> Repo.update()
+
+          send(current_pid, :completed)
+        end
+      end
+    )
+
+    wait_backup(backup, backup.processed_number)
+  end
+
+  defp wait_backup(backup, current_processed) do
+    receive do
+      {:progress, new_processed} ->
+        total_processed = current_processed + new_processed
+
+        with {:ok, updated_backup} <- set_state(backup, :running, total_processed) do
+          wait_backup(updated_backup, total_processed)
+        else
+          _ -> wait_backup(backup, total_processed)
+        end
+
+      :completed ->
+        {:ok, get(backup.id)}
+    after
+      30_000 -> set_state(backup, :failed)
     end
   end
 
   @files ['actor.json', 'outbox.json', 'likes.json', 'bookmarks.json']
-  def export(%__MODULE__{} = backup) do
+  def export(%__MODULE__{} = backup, caller_pid \\ nil) do
     backup = Repo.preload(backup, :user)
     name = String.trim_trailing(backup.file_name, ".zip")
     dir = dir(name)
 
     with :ok <- File.mkdir(dir),
-         :ok <- actor(dir, backup.user),
-         :ok <- statuses(dir, backup.user),
-         :ok <- likes(dir, backup.user),
-         :ok <- bookmarks(dir, backup.user),
+         :ok <- actor(dir, backup.user, caller_pid),
+         :ok <- statuses(dir, backup.user, caller_pid),
+         :ok <- likes(dir, backup.user, caller_pid),
+         :ok <- bookmarks(dir, backup.user, caller_pid),
          {:ok, zip_path} <- :zip.create(String.to_charlist(dir <> ".zip"), @files, cwd: dir),
          {:ok, _} <- File.rm_rf(dir) do
       {:ok, to_string(zip_path)}
@@ -157,11 +211,12 @@ def upload(%__MODULE__{} = backup, zip_path) do
     end
   end
 
-  defp actor(dir, user) do
+  defp actor(dir, user, caller_pid) do
     with {:ok, json} <-
            UserView.render("user.json", %{user: user})
            |> Map.merge(%{"likes" => "likes.json", "bookmarks" => "bookmarks.json"})
            |> Jason.encode() do
+      send(caller_pid, {:progress, 1})
       File.write(Path.join(dir, "actor.json"), json)
     end
   end
@@ -180,7 +235,9 @@ defp write_header(file, name) do
     )
   end
 
-  defp write(query, dir, name, fun) do
+  defp should_report?(num), do: rem(num, @report_every) == 0
+
+  defp write(query, dir, name, fun, caller_pid) do
     path = Path.join(dir, "#{name}.json")
 
     with {:ok, file} <- File.open(path, [:write, :utf8]),
@@ -192,35 +249,41 @@ defp write(query, dir, name, fun) do
           with {:ok, data} <- fun.(i),
                {:ok, str} <- Jason.encode(data),
                :ok <- IO.write(file, str <> ",\n") do
+            if should_report?(acc + 1) do
+              send(caller_pid, {:progress, @report_every})
+            end
+
             acc + 1
           else
             _ -> acc
           end
         end)
 
+      send(caller_pid, {:progress, rem(total, @report_every)})
+
       with :ok <- :file.pwrite(file, {:eof, -2}, "\n],\n  \"totalItems\": #{total}}") do
         File.close(file)
       end
     end
   end
 
-  defp bookmarks(dir, %{id: user_id} = _user) do
+  defp bookmarks(dir, %{id: user_id} = _user, caller_pid) do
     Bookmark
     |> where(user_id: ^user_id)
     |> join(:inner, [b], activity in assoc(b, :activity))
     |> select([b, a], %{id: b.id, object: fragment("(?)->>'object'", a.data)})
-    |> write(dir, "bookmarks", fn a -> {:ok, a.object} end)
+    |> write(dir, "bookmarks", fn a -> {:ok, a.object} end, caller_pid)
   end
 
-  defp likes(dir, user) do
+  defp likes(dir, user, caller_pid) do
     user.ap_id
     |> Activity.Queries.by_actor()
     |> Activity.Queries.by_type("Like")
     |> select([like], %{id: like.id, object: fragment("(?)->>'object'", like.data)})
-    |> write(dir, "likes", fn a -> {:ok, a.object} end)
+    |> write(dir, "likes", fn a -> {:ok, a.object} end, caller_pid)
   end
 
-  defp statuses(dir, user) do
+  defp statuses(dir, user, caller_pid) do
     opts =
       %{}
       |> Map.put(:type, ["Create", "Announce"])
@@ -233,10 +296,15 @@ defp statuses(dir, user) do
     ]
     |> Enum.concat()
     |> ActivityPub.fetch_activities_query(opts)
-    |> write(dir, "outbox", fn a ->
-      with {:ok, activity} <- Transmogrifier.prepare_outgoing(a.data) do
-        {:ok, Map.delete(activity, "@context")}
-      end
-    end)
+    |> write(
+      dir,
+      "outbox",
+      fn a ->
+        with {:ok, activity} <- Transmogrifier.prepare_outgoing(a.data) do
+          {:ok, Map.delete(activity, "@context")}
+        end
+      end,
+      caller_pid
+    )
   end
 end

lib/pleroma/workers/backup_worker.ex

@@ -51,7 +51,7 @@ def perform(%Job{args: %{"op" => "delete", "backup_id" => backup_id}}) do
   end
 
   @impl Oban.Worker
-  def timeout(_job), do: :timer.seconds(900)
+  def timeout(_job), do: :infinity
 
   defp has_email?(user) do
     not is_nil(user.email) and user.email != ""

priv/repo/migrations/20221216052127_add_state_to_backups.exs

@@ -0,0 +1,21 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Repo.Migrations.AddStateToBackups do
+  use Ecto.Migration
+
+  def up do
+    alter table(:backups) do
+      add(:state, :integer, default: 5)
+      add(:processed_number, :integer, default: 0)
+    end
+  end
+
+  def down do
+    alter table(:backups) do
+      remove(:state)
+      remove(:processed_number)
+    end
+  end
+end

test/pleroma/user/backup_test.exs

@@ -39,7 +39,7 @@ test "it creates a backup record and an Oban job" do
     assert_enqueued(worker: BackupWorker, args: args)
 
     backup = Backup.get(args["backup_id"])
-    assert %Backup{user_id: ^user_id, processed: false, file_size: 0} = backup
+    assert %Backup{user_id: ^user_id, processed: false, file_size: 0, state: :pending} = backup
   end
 
   test "it return an error if the export limit is over" do
@@ -59,7 +59,30 @@ test "it process a backup record" do
     assert {:ok, %Oban.Job{args: %{"backup_id" => backup_id} = args}} = Backup.create(user)
     assert {:ok, backup} = perform_job(BackupWorker, args)
     assert backup.file_size > 0
-    assert %Backup{id: ^backup_id, processed: true, user_id: ^user_id} = backup
+    assert %Backup{id: ^backup_id, processed: true, user_id: ^user_id, state: :complete} = backup
+
+    delete_job_args = %{"op" => "delete", "backup_id" => backup_id}
+
+    assert_enqueued(worker: BackupWorker, args: delete_job_args)
+    assert {:ok, backup} = perform_job(BackupWorker, delete_job_args)
+    refute Backup.get(backup_id)
+
+    email = Pleroma.Emails.UserEmail.backup_is_ready_email(backup)
+
+    assert_email_sent(
+      to: {user.name, user.email},
+      html_body: email.html_body
+    )
+  end
+
+  test "it updates states of the backup" do
+    clear_config([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
+    %{id: user_id} = user = insert(:user)
+
+    assert {:ok, %Oban.Job{args: %{"backup_id" => backup_id} = args}} = Backup.create(user)
+    assert {:ok, backup} = perform_job(BackupWorker, args)
+    assert backup.file_size > 0
+    assert %Backup{id: ^backup_id, processed: true, user_id: ^user_id, state: :complete} = backup
 
     delete_job_args = %{"op" => "delete", "backup_id" => backup_id}
 
@@ -148,7 +171,7 @@ test "it creates a zip archive with user data" do
     Bookmark.create(user.id, status3.id)
 
     assert {:ok, backup} = user |> Backup.new() |> Repo.insert()
-    assert {:ok, path} = Backup.export(backup)
+    assert {:ok, path} = Backup.export(backup, self())
     assert {:ok, zipfile} = :zip.zip_open(String.to_charlist(path), [:memory])
     assert {:ok, {'actor.json', json}} = :zip.zip_get('actor.json', zipfile)
 
@@ -230,6 +253,23 @@ test "it creates a zip archive with user data" do
     File.rm!(path)
   end
 
+  test "it counts the correct number processed" do
+    user = insert(:user, %{nickname: "cofe", name: "Cofe", ap_id: "http://cofe.io/users/cofe"})
+
+    Enum.map(1..120, fn i ->
+      {:ok, status} = CommonAPI.post(user, %{status: "status #{i}"})
+      CommonAPI.favorite(user, status.id)
+      Bookmark.create(user.id, status.id)
+    end)
+
+    assert {:ok, backup} = user |> Backup.new() |> Repo.insert()
+    {:ok, backup} = Backup.process(backup)
+
+    assert backup.processed_number == 1 + 120 + 120 + 120
+
+    Backup.delete(backup)
+  end
+
   describe "it uploads and deletes a backup archive" do
     setup do
       clear_config([Pleroma.Upload, :base_url], "https://s3.amazonaws.com")
@@ -246,7 +286,7 @@ test "it creates a zip archive with user data" do
       Bookmark.create(user.id, status3.id)
 
       assert {:ok, backup} = user |> Backup.new() |> Repo.insert()
-      assert {:ok, path} = Backup.export(backup)
+      assert {:ok, path} = Backup.export(backup, self())
 
       [path: path, backup: backup]
     end