diff options
Diffstat (limited to 'test/web/ostatus/ostatus_test.exs')
| -rw-r--r-- | test/web/ostatus/ostatus_test.exs | 645 |
1 files changed, 0 insertions, 645 deletions
diff --git a/test/web/ostatus/ostatus_test.exs b/test/web/ostatus/ostatus_test.exs deleted file mode 100644 index 70a0e4473..000000000 --- a/test/web/ostatus/ostatus_test.exs +++ /dev/null @@ -1,645 +0,0 @@ -# Pleroma: A lightweight social networking server -# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/> -# SPDX-License-Identifier: AGPL-3.0-only - -defmodule Pleroma.Web.OStatusTest do - use Pleroma.DataCase - alias Pleroma.Activity - alias Pleroma.Instances - alias Pleroma.Object - alias Pleroma.Repo - alias Pleroma.User - alias Pleroma.Web.OStatus - alias Pleroma.Web.XML - - import ExUnit.CaptureLog - import Mock - import Pleroma.Factory - - setup_all do - Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end) - :ok - end - - test "don't insert create notes twice" do - incoming = File.read!("test/fixtures/incoming_note_activity.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - assert {:ok, [activity]} == OStatus.handle_incoming(incoming) - end - - test "handle incoming note - GS, Salmon" do - incoming = File.read!("test/fixtures/incoming_note_activity.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - object = Object.normalize(activity) - - user = User.get_cached_by_ap_id(activity.data["actor"]) - assert user.info.note_count == 1 - assert activity.data["type"] == "Create" - assert object.data["type"] == "Note" - - assert object.data["id"] == "tag:gs.example.org:4040,2017-04-23:noticeId=29:objectType=note" - - assert activity.data["published"] == "2017-04-23T14:51:03+00:00" - assert object.data["published"] == "2017-04-23T14:51:03+00:00" - - assert activity.data["context"] == - "tag:gs.example.org:4040,2017-04-23:objectType=thread:nonce=f09e22f58abd5c7b" - - assert "http://pleroma.example.org:4000/users/lain3" in activity.data["to"] - assert object.data["emoji"] == %{"marko" => "marko.png", "reimu" => "reimu.png"} - assert activity.local == false - end - - test "handle incoming notes - GS, subscription" do - incoming = File.read!("test/fixtures/ostatus_incoming_post.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - object = Object.normalize(activity) - - assert activity.data["type"] == "Create" - assert object.data["type"] == "Note" - assert object.data["actor"] == "https://social.heldscal.la/user/23211" - assert object.data["content"] == "Will it blend?" - user = User.get_cached_by_ap_id(activity.data["actor"]) - assert User.ap_followers(user) in activity.data["to"] - assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"] - end - - test "handle incoming notes with attachments - GS, subscription" do - incoming = File.read!("test/fixtures/incoming_websub_gnusocial_attachments.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - object = Object.normalize(activity) - - assert activity.data["type"] == "Create" - assert object.data["type"] == "Note" - assert object.data["actor"] == "https://social.heldscal.la/user/23211" - assert object.data["attachment"] |> length == 2 - assert object.data["external_url"] == "https://social.heldscal.la/notice/2020923" - assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"] - end - - test "handle incoming notes with tags" do - incoming = File.read!("test/fixtures/ostatus_incoming_post_tag.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - object = Object.normalize(activity) - - assert object.data["tag"] == ["nsfw"] - assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"] - end - - test "handle incoming notes - Mastodon, salmon, reply" do - # It uses the context of the replied to object - Repo.insert!(%Object{ - data: %{ - "id" => "https://pleroma.soykaf.com/objects/c237d966-ac75-4fe3-a87a-d89d71a3a7a4", - "context" => "2hu" - } - }) - - incoming = File.read!("test/fixtures/incoming_reply_mastodon.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - object = Object.normalize(activity) - - assert activity.data["type"] == "Create" - assert object.data["type"] == "Note" - assert object.data["actor"] == "https://mastodon.social/users/lambadalambda" - assert activity.data["context"] == "2hu" - assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"] - end - - test "handle incoming notes - Mastodon, with CW" do - incoming = File.read!("test/fixtures/mastodon-note-cw.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - object = Object.normalize(activity) - - assert activity.data["type"] == "Create" - assert object.data["type"] == "Note" - assert object.data["actor"] == "https://mastodon.social/users/lambadalambda" - assert object.data["summary"] == "technologic" - assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"] - end - - test "handle incoming unlisted messages, put public into cc" do - incoming = File.read!("test/fixtures/mastodon-note-unlisted.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - object = Object.normalize(activity) - - refute "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"] - assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["cc"] - refute "https://www.w3.org/ns/activitystreams#Public" in object.data["to"] - assert "https://www.w3.org/ns/activitystreams#Public" in object.data["cc"] - end - - test "handle incoming retweets - Mastodon, with CW" do - incoming = File.read!("test/fixtures/cw_retweet.xml") - {:ok, [[_activity, retweeted_activity]]} = OStatus.handle_incoming(incoming) - retweeted_object = Object.normalize(retweeted_activity) - - assert retweeted_object.data["summary"] == "Hey." - end - - test "handle incoming notes - GS, subscription, reply" do - incoming = File.read!("test/fixtures/ostatus_incoming_reply.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - object = Object.normalize(activity) - - assert activity.data["type"] == "Create" - assert object.data["type"] == "Note" - assert object.data["actor"] == "https://social.heldscal.la/user/23211" - - assert object.data["content"] == - "@<a href=\"https://gs.archae.me/user/4687\" class=\"h-card u-url p-nickname mention\" title=\"shpbot\">shpbot</a> why not indeed." - - assert object.data["inReplyTo"] == - "tag:gs.archae.me,2017-04-30:noticeId=778260:objectType=note" - - assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"] - end - - test "handle incoming retweets - GS, subscription" do - incoming = File.read!("test/fixtures/share-gs.xml") - {:ok, [[activity, retweeted_activity]]} = OStatus.handle_incoming(incoming) - - assert activity.data["type"] == "Announce" - assert activity.data["actor"] == "https://social.heldscal.la/user/23211" - assert activity.data["object"] == retweeted_activity.data["object"] - assert "https://pleroma.soykaf.com/users/lain" in activity.data["to"] - refute activity.local - - retweeted_activity = Activity.get_by_id(retweeted_activity.id) - retweeted_object = Object.normalize(retweeted_activity) - assert retweeted_activity.data["type"] == "Create" - assert retweeted_activity.data["actor"] == "https://pleroma.soykaf.com/users/lain" - refute retweeted_activity.local - assert retweeted_object.data["announcement_count"] == 1 - assert String.contains?(retweeted_object.data["content"], "mastodon") - refute String.contains?(retweeted_object.data["content"], "Test account") - end - - test "handle incoming retweets - GS, subscription - local message" do - incoming = File.read!("test/fixtures/share-gs-local.xml") - note_activity = insert(:note_activity) - object = Object.normalize(note_activity) - user = User.get_cached_by_ap_id(note_activity.data["actor"]) - - incoming = - incoming - |> String.replace("LOCAL_ID", object.data["id"]) - |> String.replace("LOCAL_USER", user.ap_id) - - {:ok, [[activity, retweeted_activity]]} = OStatus.handle_incoming(incoming) - - assert activity.data["type"] == "Announce" - assert activity.data["actor"] == "https://social.heldscal.la/user/23211" - assert activity.data["object"] == object.data["id"] - assert user.ap_id in activity.data["to"] - refute activity.local - - retweeted_activity = Activity.get_by_id(retweeted_activity.id) - assert note_activity.id == retweeted_activity.id - assert retweeted_activity.data["type"] == "Create" - assert retweeted_activity.data["actor"] == user.ap_id - assert retweeted_activity.local - assert Object.normalize(retweeted_activity).data["announcement_count"] == 1 - end - - test "handle incoming retweets - Mastodon, salmon" do - incoming = File.read!("test/fixtures/share.xml") - {:ok, [[activity, retweeted_activity]]} = OStatus.handle_incoming(incoming) - retweeted_object = Object.normalize(retweeted_activity) - - assert activity.data["type"] == "Announce" - assert activity.data["actor"] == "https://mastodon.social/users/lambadalambda" - assert activity.data["object"] == retweeted_activity.data["object"] - - assert activity.data["id"] == - "tag:mastodon.social,2017-05-03:objectId=4934452:objectType=Status" - - refute activity.local - assert retweeted_activity.data["type"] == "Create" - assert retweeted_activity.data["actor"] == "https://pleroma.soykaf.com/users/lain" - refute retweeted_activity.local - refute String.contains?(retweeted_object.data["content"], "Test account") - end - - test "handle incoming favorites - GS, websub" do - capture_log(fn -> - incoming = File.read!("test/fixtures/favorite.xml") - {:ok, [[activity, favorited_activity]]} = OStatus.handle_incoming(incoming) - - assert activity.data["type"] == "Like" - assert activity.data["actor"] == "https://social.heldscal.la/user/23211" - assert activity.data["object"] == favorited_activity.data["object"] - - assert activity.data["id"] == - "tag:social.heldscal.la,2017-05-05:fave:23211:comment:2061643:2017-05-05T09:12:50+00:00" - - refute activity.local - assert favorited_activity.data["type"] == "Create" - assert favorited_activity.data["actor"] == "https://shitposter.club/user/1" - - assert favorited_activity.data["object"] == - "tag:shitposter.club,2017-05-05:noticeId=2827873:objectType=comment" - - refute favorited_activity.local - end) - end - - test "handle conversation references" do - incoming = File.read!("test/fixtures/mastodon_conversation.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - - assert activity.data["context"] == - "tag:mastodon.social,2017-08-28:objectId=7876885:objectType=Conversation" - end - - test "handle incoming favorites with locally available object - GS, websub" do - note_activity = insert(:note_activity) - object = Object.normalize(note_activity) - - incoming = - File.read!("test/fixtures/favorite_with_local_note.xml") - |> String.replace("localid", object.data["id"]) - - {:ok, [[activity, favorited_activity]]} = OStatus.handle_incoming(incoming) - - assert activity.data["type"] == "Like" - assert activity.data["actor"] == "https://social.heldscal.la/user/23211" - assert activity.data["object"] == object.data["id"] - refute activity.local - assert note_activity.id == favorited_activity.id - assert favorited_activity.local - end - - test_with_mock "handle incoming replies, fetching replied-to activities if we don't have them", - OStatus, - [:passthrough], - [] do - incoming = File.read!("test/fixtures/incoming_note_activity_answer.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - object = Object.normalize(activity, false) - - assert activity.data["type"] == "Create" - assert object.data["type"] == "Note" - - assert object.data["inReplyTo"] == - "http://pleroma.example.org:4000/objects/55bce8fc-b423-46b1-af71-3759ab4670bc" - - assert "http://pleroma.example.org:4000/users/lain5" in activity.data["to"] - - assert object.data["id"] == "tag:gs.example.org:4040,2017-04-25:noticeId=55:objectType=note" - - assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"] - - assert called(OStatus.fetch_activity_from_url(object.data["inReplyTo"], :_)) - end - - test_with_mock "handle incoming replies, not fetching replied-to activities beyond max_replies_depth", - OStatus, - [:passthrough], - [] do - incoming = File.read!("test/fixtures/incoming_note_activity_answer.xml") - - with_mock Pleroma.Web.Federator, - allowed_incoming_reply_depth?: fn _ -> false end do - {:ok, [activity]} = OStatus.handle_incoming(incoming) - object = Object.normalize(activity, false) - - refute called(OStatus.fetch_activity_from_url(object.data["inReplyTo"], :_)) - end - end - - test "handle incoming follows" do - incoming = File.read!("test/fixtures/follow.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - assert activity.data["type"] == "Follow" - - assert activity.data["id"] == - "tag:social.heldscal.la,2017-05-07:subscription:23211:person:44803:2017-05-07T09:54:48+00:00" - - assert activity.data["actor"] == "https://social.heldscal.la/user/23211" - assert activity.data["object"] == "https://pawoo.net/users/pekorino" - refute activity.local - - follower = User.get_cached_by_ap_id(activity.data["actor"]) - followed = User.get_cached_by_ap_id(activity.data["object"]) - - assert User.following?(follower, followed) - end - - test "refuse following over OStatus if the followed's account is locked" do - incoming = File.read!("test/fixtures/follow.xml") - _user = insert(:user, info: %{locked: true}, ap_id: "https://pawoo.net/users/pekorino") - - {:ok, [{:error, "It's not possible to follow locked accounts over OStatus"}]} = - OStatus.handle_incoming(incoming) - end - - test "handle incoming unfollows with existing follow" do - incoming_follow = File.read!("test/fixtures/follow.xml") - {:ok, [_activity]} = OStatus.handle_incoming(incoming_follow) - - incoming = File.read!("test/fixtures/unfollow.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - - assert activity.data["type"] == "Undo" - - assert activity.data["id"] == - "undo:tag:social.heldscal.la,2017-05-07:subscription:23211:person:44803:2017-05-07T09:54:48+00:00" - - assert activity.data["actor"] == "https://social.heldscal.la/user/23211" - embedded_object = activity.data["object"] - assert is_map(embedded_object) - assert embedded_object["type"] == "Follow" - assert embedded_object["object"] == "https://pawoo.net/users/pekorino" - refute activity.local - - follower = User.get_cached_by_ap_id(activity.data["actor"]) - followed = User.get_cached_by_ap_id(embedded_object["object"]) - - refute User.following?(follower, followed) - end - - test "it clears `unreachable` federation status of the sender" do - incoming_reaction_xml = File.read!("test/fixtures/share-gs.xml") - doc = XML.parse_document(incoming_reaction_xml) - actor_uri = XML.string_from_xpath("//author/uri[1]", doc) - reacted_to_author_uri = XML.string_from_xpath("//author/uri[2]", doc) - - Instances.set_consistently_unreachable(actor_uri) - Instances.set_consistently_unreachable(reacted_to_author_uri) - refute Instances.reachable?(actor_uri) - refute Instances.reachable?(reacted_to_author_uri) - - {:ok, _} = OStatus.handle_incoming(incoming_reaction_xml) - assert Instances.reachable?(actor_uri) - refute Instances.reachable?(reacted_to_author_uri) - end - - describe "new remote user creation" do - test "returns local users" do - local_user = insert(:user) - {:ok, user} = OStatus.find_or_make_user(local_user.ap_id) - - assert user == local_user - end - - test "tries to use the information in poco fields" do - uri = "https://social.heldscal.la/user/23211" - - {:ok, user} = OStatus.find_or_make_user(uri) - - user = User.get_cached_by_id(user.id) - assert user.name == "Constance Variable" - assert user.nickname == "lambadalambda@social.heldscal.la" - assert user.local == false - assert user.info.uri == uri - assert user.ap_id == uri - assert user.bio == "Call me Deacon Blues." - assert user.avatar["type"] == "Image" - - {:ok, user_again} = OStatus.find_or_make_user(uri) - - assert user == user_again - end - - test "find_or_make_user sets all the nessary input fields" do - uri = "https://social.heldscal.la/user/23211" - {:ok, user} = OStatus.find_or_make_user(uri) - - assert user.info == - %User.Info{ - id: user.info.id, - ap_enabled: false, - background: %{}, - banner: %{}, - blocks: [], - deactivated: false, - default_scope: "public", - domain_blocks: [], - follower_count: 0, - is_admin: false, - is_moderator: false, - keys: nil, - locked: false, - no_rich_text: false, - note_count: 0, - settings: nil, - source_data: %{}, - hub: "https://social.heldscal.la/main/push/hub", - magic_key: - "RSA.uzg6r1peZU0vXGADWxGJ0PE34WvmhjUmydbX5YYdOiXfODVLwCMi1umGoqUDm-mRu4vNEdFBVJU1CpFA7dKzWgIsqsa501i2XqElmEveXRLvNRWFB6nG03Q5OUY2as8eE54BJm0p20GkMfIJGwP6TSFb-ICp3QjzbatuSPJ6xCE=.AQAB", - salmon: "https://social.heldscal.la/main/salmon/user/23211", - topic: "https://social.heldscal.la/api/statuses/user_timeline/23211.atom", - uri: "https://social.heldscal.la/user/23211" - } - end - - test "find_make_or_update_actor takes an author element and returns an updated user" do - uri = "https://social.heldscal.la/user/23211" - - {:ok, user} = OStatus.find_or_make_user(uri) - old_name = user.name - old_bio = user.bio - change = Ecto.Changeset.change(user, %{avatar: nil, bio: nil, name: nil}) - - {:ok, user} = Repo.update(change) - refute user.avatar - - doc = XML.parse_document(File.read!("test/fixtures/23211.atom")) - [author] = :xmerl_xpath.string('//author[1]', doc) - {:ok, user} = OStatus.find_make_or_update_actor(author) - assert user.avatar["type"] == "Image" - assert user.name == old_name - assert user.bio == old_bio - - {:ok, user_again} = OStatus.find_make_or_update_actor(author) - assert user_again == user - end - - test "find_or_make_user disallows protocol downgrade" do - user = insert(:user, %{local: true}) - {:ok, user} = OStatus.find_or_make_user(user.ap_id) - - assert User.ap_enabled?(user) - - user = - insert(:user, %{ - ap_id: "https://social.heldscal.la/user/23211", - info: %{ap_enabled: true}, - local: false - }) - - assert User.ap_enabled?(user) - - {:ok, user} = OStatus.find_or_make_user(user.ap_id) - assert User.ap_enabled?(user) - end - - test "find_make_or_update_actor disallows protocol downgrade" do - user = insert(:user, %{local: true}) - {:ok, user} = OStatus.find_or_make_user(user.ap_id) - - assert User.ap_enabled?(user) - - user = - insert(:user, %{ - ap_id: "https://social.heldscal.la/user/23211", - info: %{ap_enabled: true}, - local: false - }) - - assert User.ap_enabled?(user) - - {:ok, user} = OStatus.find_or_make_user(user.ap_id) - assert User.ap_enabled?(user) - - doc = XML.parse_document(File.read!("test/fixtures/23211.atom")) - [author] = :xmerl_xpath.string('//author[1]', doc) - {:error, :invalid_protocol} = OStatus.find_make_or_update_actor(author) - end - end - - describe "gathering user info from a user id" do - test "it returns user info in a hash" do - user = "shp@social.heldscal.la" - - # TODO: make test local - {:ok, data} = OStatus.gather_user_info(user) - - expected = %{ - "hub" => "https://social.heldscal.la/main/push/hub", - "magic_key" => - "RSA.wQ3i9UA0qmAxZ0WTIp4a-waZn_17Ez1pEEmqmqoooRsG1_BvpmOvLN0G2tEcWWxl2KOtdQMCiPptmQObeZeuj48mdsDZ4ArQinexY2hCCTcbV8Xpswpkb8K05RcKipdg07pnI7tAgQ0VWSZDImncL6YUGlG5YN8b5TjGOwk2VG8=.AQAB", - "name" => "shp", - "nickname" => "shp", - "salmon" => "https://social.heldscal.la/main/salmon/user/29191", - "subject" => "acct:shp@social.heldscal.la", - "topic" => "https://social.heldscal.la/api/statuses/user_timeline/29191.atom", - "uri" => "https://social.heldscal.la/user/29191", - "host" => "social.heldscal.la", - "fqn" => user, - "bio" => "cofe", - "avatar" => %{ - "type" => "Image", - "url" => [ - %{ - "href" => "https://social.heldscal.la/avatar/29191-original-20170421154949.jpeg", - "mediaType" => "image/jpeg", - "type" => "Link" - } - ] - }, - "subscribe_address" => "https://social.heldscal.la/main/ostatussub?profile={uri}", - "ap_id" => nil - } - - assert data == expected - end - - test "it works with the uri" do - user = "https://social.heldscal.la/user/29191" - - # TODO: make test local - {:ok, data} = OStatus.gather_user_info(user) - - expected = %{ - "hub" => "https://social.heldscal.la/main/push/hub", - "magic_key" => - "RSA.wQ3i9UA0qmAxZ0WTIp4a-waZn_17Ez1pEEmqmqoooRsG1_BvpmOvLN0G2tEcWWxl2KOtdQMCiPptmQObeZeuj48mdsDZ4ArQinexY2hCCTcbV8Xpswpkb8K05RcKipdg07pnI7tAgQ0VWSZDImncL6YUGlG5YN8b5TjGOwk2VG8=.AQAB", - "name" => "shp", - "nickname" => "shp", - "salmon" => "https://social.heldscal.la/main/salmon/user/29191", - "subject" => "https://social.heldscal.la/user/29191", - "topic" => "https://social.heldscal.la/api/statuses/user_timeline/29191.atom", - "uri" => "https://social.heldscal.la/user/29191", - "host" => "social.heldscal.la", - "fqn" => user, - "bio" => "cofe", - "avatar" => %{ - "type" => "Image", - "url" => [ - %{ - "href" => "https://social.heldscal.la/avatar/29191-original-20170421154949.jpeg", - "mediaType" => "image/jpeg", - "type" => "Link" - } - ] - }, - "subscribe_address" => "https://social.heldscal.la/main/ostatussub?profile={uri}", - "ap_id" => nil - } - - assert data == expected - end - end - - describe "fetching a status by it's HTML url" do - test "it builds a missing status from an html url" do - capture_log(fn -> - url = "https://shitposter.club/notice/2827873" - {:ok, [activity]} = OStatus.fetch_activity_from_url(url) - - assert activity.data["actor"] == "https://shitposter.club/user/1" - - assert activity.data["object"] == - "tag:shitposter.club,2017-05-05:noticeId=2827873:objectType=comment" - end) - end - - test "it works for atom notes, too" do - url = "https://social.sakamoto.gq/objects/0ccc1a2c-66b0-4305-b23a-7f7f2b040056" - {:ok, [activity]} = OStatus.fetch_activity_from_url(url) - assert activity.data["actor"] == "https://social.sakamoto.gq/users/eal" - assert activity.data["object"] == url - end - end - - test "it doesn't add nil in the to field" do - incoming = File.read!("test/fixtures/nil_mention_entry.xml") - {:ok, [activity]} = OStatus.handle_incoming(incoming) - - assert activity.data["to"] == [ - "http://localhost:4001/users/atarifrosch@social.stopwatchingus-heidelberg.de/followers", - "https://www.w3.org/ns/activitystreams#Public" - ] - end - - describe "is_representable?" do - test "Note objects are representable" do - note_activity = insert(:note_activity) - - assert OStatus.is_representable?(note_activity) - end - - test "Article objects are not representable" do - note_activity = insert(:note_activity) - note_object = Object.normalize(note_activity) - - note_data = - note_object.data - |> Map.put("type", "Article") - - Cachex.clear(:object_cache) - - cs = Object.change(note_object, %{data: note_data}) - {:ok, _article_object} = Repo.update(cs) - - # the underlying object is now an Article instead of a note, so this should fail - refute OStatus.is_representable?(note_activity) - end - end - - describe "make_user/2" do - test "creates new user" do - {:ok, user} = OStatus.make_user("https://social.heldscal.la/user/23211") - - created_user = - User - |> Repo.get_by(ap_id: "https://social.heldscal.la/user/23211") - |> Map.put(:last_digest_emailed_at, nil) - - assert user.info - assert user == created_user - end - end -end |