Merge branch 'purge-user' into 'develop'

Purge a local user upon deletion, fixes #2062

Closes #2062

See merge request !2898

lib/pleroma/user.ex

@@ -1583,6 +1583,49 @@ def update_notification_settings(%User{} = user, settings) do
     |> update_and_set_cache()
   end
 
+  @spec purge_user_changeset(User.t()) :: Changeset.t()
+  def purge_user_changeset(user) do
+    # "Right to be forgotten"
+    # https://gdpr.eu/right-to-be-forgotten/
+    change(user, %{
+      bio: nil,
+      raw_bio: nil,
+      email: nil,
+      name: nil,
+      password_hash: nil,
+      keys: nil,
+      public_key: nil,
+      avatar: %{},
+      tags: [],
+      last_refreshed_at: nil,
+      last_digest_emailed_at: nil,
+      banner: %{},
+      background: %{},
+      note_count: 0,
+      follower_count: 0,
+      following_count: 0,
+      locked: false,
+      confirmation_pending: false,
+      password_reset_pending: false,
+      approval_pending: false,
+      registration_reason: nil,
+      confirmation_token: nil,
+      domain_blocks: [],
+      deactivated: true,
+      ap_enabled: false,
+      is_moderator: false,
+      is_admin: false,
+      mastofe_settings: nil,
+      mascot: nil,
+      emoji: %{},
+      pleroma_settings_store: %{},
+      fields: [],
+      raw_fields: [],
+      discoverable: false,
+      also_known_as: []
+    })
+  end
+
   def delete(users) when is_list(users) do
     for user <- users, do: delete(user)
   end
@@ -1610,7 +1653,7 @@ defp delete_or_deactivate(%User{local: true} = user) do
 
       _ ->
         user
-        |> change(%{deactivated: true, email: nil})
+        |> purge_user_changeset()
         |> update_and_set_cache()
     end
   end

test/user_test.exs

@@ -1417,7 +1417,6 @@ test "deactivates user when activation is not required", %{user: user} do
 
   test "delete/1 when approval is pending deletes the user" do
     user = insert(:user, approval_pending: true)
-    {:ok, user: user}
 
     {:ok, job} = User.delete(user)
     {:ok, _} = ObanHelpers.perform(job)
@@ -1426,6 +1425,85 @@ test "delete/1 when approval is pending deletes the user" do
     refute User.get_by_id(user.id)
   end
 
+  test "delete/1 purges a user when they wouldn't be fully deleted" do
+    user =
+      insert(:user, %{
+        bio: "eyy lmao",
+        name: "qqqqqqq",
+        password_hash: "pdfk2$1b3n159001",
+        keys: "RSA begin buplic key",
+        public_key: "--PRIVATE KEYE--",
+        avatar: %{"a" => "b"},
+        tags: ["qqqqq"],
+        banner: %{"a" => "b"},
+        background: %{"a" => "b"},
+        note_count: 9,
+        follower_count: 9,
+        following_count: 9001,
+        locked: true,
+        confirmation_pending: true,
+        password_reset_pending: true,
+        approval_pending: true,
+        registration_reason: "ahhhhh",
+        confirmation_token: "qqqq",
+        domain_blocks: ["lain.com"],
+        deactivated: true,
+        ap_enabled: true,
+        is_moderator: true,
+        is_admin: true,
+        mastofe_settings: %{"a" => "b"},
+        mascot: %{"a" => "b"},
+        emoji: %{"a" => "b"},
+        pleroma_settings_store: %{"q" => "x"},
+        fields: [%{"gg" => "qq"}],
+        raw_fields: [%{"gg" => "qq"}],
+        discoverable: true,
+        also_known_as: ["https://lol.olo/users/loll"]
+      })
+
+    {:ok, job} = User.delete(user)
+    {:ok, _} = ObanHelpers.perform(job)
+    user = User.get_by_id(user.id)
+
+    assert %User{
+             bio: nil,
+             raw_bio: nil,
+             email: nil,
+             name: nil,
+             password_hash: nil,
+             keys: nil,
+             public_key: nil,
+             avatar: %{},
+             tags: [],
+             last_refreshed_at: nil,
+             last_digest_emailed_at: nil,
+             banner: %{},
+             background: %{},
+             note_count: 0,
+             follower_count: 0,
+             following_count: 0,
+             locked: false,
+             confirmation_pending: false,
+             password_reset_pending: false,
+             approval_pending: false,
+             registration_reason: nil,
+             confirmation_token: nil,
+             domain_blocks: [],
+             deactivated: true,
+             ap_enabled: false,
+             is_moderator: false,
+             is_admin: false,
+             mastofe_settings: nil,
+             mascot: nil,
+             emoji: %{},
+             pleroma_settings_store: %{},
+             fields: [],
+             raw_fields: [],
+             discoverable: false,
+             also_known_as: []
+           } = user
+  end
+
   test "get_public_key_for_ap_id fetches a user that's not in the db" do
     assert {:ok, _key} = User.get_public_key_for_ap_id("http://mastodon.example.org/users/admin")
   end

test/web/admin_api/controllers/admin_api_controller_test.exs

@@ -155,13 +155,30 @@ test "GET /api/pleroma/admin/users/:nickname requires " <>
 
   describe "DELETE /api/pleroma/admin/users" do
     test "single user", %{admin: admin, conn: conn} do
-      user = insert(:user)
       clear_config([:instance, :federating], true)
 
+      user =
+        insert(:user,
+          avatar: %{"url" => [%{"href" => "https://someurl"}]},
+          banner: %{"url" => [%{"href" => "https://somebanner"}]},
+          bio: "Hello world!",
+          name: "A guy"
+        )
+
+      # Create some activities to check they got deleted later
+      follower = insert(:user)
+      {:ok, _} = CommonAPI.post(user, %{status: "test"})
+      {:ok, _, _, _} = CommonAPI.follow(user, follower)
+      {:ok, _, _, _} = CommonAPI.follow(follower, user)
+      user = Repo.get(User, user.id)
+      assert user.note_count == 1
+      assert user.follower_count == 1
+      assert user.following_count == 1
       refute user.deactivated
 
       with_mock Pleroma.Web.Federator,
-        publish: fn _ -> nil end do
+        publish: fn _ -> nil end,
+        perform: fn _, _ -> nil end do
         conn =
           conn
           |> put_req_header("accept", "application/json")
@@ -181,6 +198,14 @@ test "single user", %{admin: admin, conn: conn} do
         user = Repo.get(User, user.id)
         assert user.deactivated
 
+        assert user.avatar == %{}
+        assert user.banner == %{}
+        assert user.note_count == 0
+        assert user.follower_count == 0
+        assert user.following_count == 0
+        assert user.bio == nil
+        assert user.name == nil
+
         assert called(Pleroma.Web.Federator.publish(:_))
       end
     end

test/web/twitter_api/util_controller_test.exs

@@ -586,10 +586,16 @@ test "with proper permissions and wrong or missing password", %{conn: conn} do
       end
     end
 
-    test "with proper permissions and valid password", %{conn: conn} do
+    test "with proper permissions and valid password", %{conn: conn, user: user} do
       conn = post(conn, "/api/pleroma/delete_account", %{"password" => "test"})
-
+      ObanHelpers.perform_all()
       assert json_response(conn, 200) == %{"status" => "success"}
+
+      user = User.get_by_id(user.id)
+      assert user.deactivated == true
+      assert user.name == nil
+      assert user.bio == nil
+      assert user.password_hash == nil
     end
   end
 end