# Pleroma: A lightweight social networking server # Copyright © 2017-2022 Pleroma Authors # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do use Oban.Testing, repo: Pleroma.Repo use Pleroma.DataCase alias Pleroma.Activity alias Pleroma.Object alias Pleroma.Tests.ObanHelpers alias Pleroma.User alias Pleroma.Web.ActivityPub.Transmogrifier alias Pleroma.Web.ActivityPub.Utils alias Pleroma.Web.AdminAPI.AccountView alias Pleroma.Web.CommonAPI import Mock import Pleroma.Factory import ExUnit.CaptureLog setup_all do Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end) :ok end setup do: clear_config([:instance, :max_remote_account_fields]) describe "handle_incoming" do test "it works for incoming unfollows with an existing follow" do user = insert(:user) follow_data = File.read!("test/fixtures/mastodon-follow-activity.json") |> Jason.decode!() |> Map.put("object", user.ap_id) {:ok, %Activity{data: _, local: false}} = Transmogrifier.handle_incoming(follow_data) data = File.read!("test/fixtures/mastodon-unfollow-activity.json") |> Jason.decode!() |> Map.put("object", follow_data) {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data) assert data["type"] == "Undo" assert data["object"]["type"] == "Follow" assert data["object"]["object"] == user.ap_id assert data["actor"] == "http://mastodon.example.org/users/admin" refute User.following?(User.get_cached_by_ap_id(data["actor"]), user) end test "it accepts Flag activities" do user = insert(:user) other_user = insert(:user) {:ok, activity} = CommonAPI.post(user, %{status: "test post"}) object = Object.normalize(activity, fetch: false) note_obj = %{ "type" => "Note", "id" => activity.object.data["id"], "content" => "test post", "published" => object.data["published"], "actor" => AccountView.render("show.json", %{user: user, skip_visibility_check: true}) } message = %{ "@context" => "https://www.w3.org/ns/activitystreams", "cc" => [user.ap_id], "object" => [user.ap_id, activity.data["id"]], "type" => "Flag", "content" => "blocked AND reported!!!", "actor" => other_user.ap_id } assert {:ok, activity} = Transmogrifier.handle_incoming(message) assert activity.data["object"] == [user.ap_id, note_obj] assert activity.data["content"] == "blocked AND reported!!!" assert activity.data["actor"] == other_user.ap_id assert activity.data["cc"] == [user.ap_id] end test "it accepts Move activities" do old_user = insert(:user) new_user = insert(:user) message = %{ "@context" => "https://www.w3.org/ns/activitystreams", "type" => "Move", "actor" => old_user.ap_id, "object" => old_user.ap_id, "target" => new_user.ap_id } assert :error = Transmogrifier.handle_incoming(message) {:ok, _new_user} = User.update_and_set_cache(new_user, %{also_known_as: [old_user.ap_id]}) assert {:ok, %Activity{} = activity} = Transmogrifier.handle_incoming(message) assert activity.actor == old_user.ap_id assert activity.data["actor"] == old_user.ap_id assert activity.data["object"] == old_user.ap_id assert activity.data["target"] == new_user.ap_id assert activity.data["type"] == "Move" end test "it fixes both the Create and object contexts in a reply" do insert(:user, ap_id: "https://mk.absturztau.be/users/8ozbzjs3o8") insert(:user, ap_id: "https://p.helene.moe/users/helene") create_activity = "test/fixtures/create-pleroma-reply-to-misskey-thread.json" |> File.read!() |> Jason.decode!() assert {:ok, %Activity{} = activity} = Transmogrifier.handle_incoming(create_activity) object = Object.normalize(activity, fetch: false) assert activity.data["context"] == object.data["context"] end # https://codeberg.org/fediverse/fep/src/branch/main/feps/fep-e232.md test "it accepts FEP-e232 link tags" do insert(:user, ap_id: "https://example.org/users/alice") message = File.read!("test/fixtures/fep-e232.json") |> Jason.decode!() assert {:ok, activity} = Transmogrifier.handle_incoming(message) object = Object.normalize(activity) assert length(object.data["tag"]) == 1 tag = object.data["tag"] |> List.first() assert tag["type"] == "Link" assert tag["name"] == "https://example.org/objects/9" end end describe "prepare outgoing" do test "it inlines private announced objects" do user = insert(:user) {:ok, activity} = CommonAPI.post(user, %{status: "hey", visibility: "private"}) {:ok, announce_activity} = CommonAPI.repeat(activity.id, user) {:ok, modified} = Transmogrifier.prepare_outgoing(announce_activity.data) assert modified["object"]["content"] == "hey" assert modified["object"]["actor"] == modified["object"]["attributedTo"] end test "it turns mentions into tags" do user = insert(:user) other_user = insert(:user) {:ok, activity} = CommonAPI.post(user, %{status: "hey, @#{other_user.nickname}, how are ya? #2hu"}) with_mock Pleroma.Notification, get_notified_from_activity: fn _, _ -> [] end do {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data) object = modified["object"] expected_mention = %{ "href" => other_user.ap_id, "name" => "@#{other_user.nickname}", "type" => "Mention" } expected_tag = %{ "href" => Pleroma.Web.Endpoint.url() <> "/tags/2hu", "type" => "Hashtag", "name" => "#2hu" } refute called(Pleroma.Notification.get_notified_from_activity(:_, :_)) assert Enum.member?(object["tag"], expected_tag) assert Enum.member?(object["tag"], expected_mention) end end test "it adds the json-ld context and the conversation property" do user = insert(:user) {:ok, activity} = CommonAPI.post(user, %{status: "hey"}) {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data) assert modified["@context"] == Utils.make_json_ld_header()["@context"] assert modified["object"]["conversation"] == modified["context"] end test "it sets the 'attributedTo' property to the actor of the object if it doesn't have one" do user = insert(:user) {:ok, activity} = CommonAPI.post(user, %{status: "hey"}) {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data) assert modified["object"]["actor"] == modified["object"]["attributedTo"] end test "it strips internal hashtag data" do user = insert(:user) {:ok, activity} = CommonAPI.post(user, %{status: "#2hu"}) expected_tag = %{ "href" => Pleroma.Web.Endpoint.url() <> "/tags/2hu", "type" => "Hashtag", "name" => "#2hu" } {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data) assert modified["object"]["tag"] == [expected_tag] end test "it strips internal fields" do user = insert(:user) {:ok, activity} = CommonAPI.post(user, %{ status: "#2hu :firefox:", generator: %{type: "Application", name: "TestClient", url: "https://pleroma.social"} }) # Ensure injected application data made it into the activity # as we don't have a Token to derive it from, otherwise it will # be nil and the test will pass assert %{ type: "Application", name: "TestClient", url: "https://pleroma.social" } == activity.object.data["generator"] {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data) assert length(modified["object"]["tag"]) == 2 assert is_nil(modified["object"]["emoji"]) assert is_nil(modified["object"]["like_count"]) assert is_nil(modified["object"]["announcements"]) assert is_nil(modified["object"]["announcement_count"]) assert is_nil(modified["object"]["generator"]) end test "it strips internal fields of article" do activity = insert(:article_activity) {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data) assert length(modified["object"]["tag"]) == 2 assert is_nil(modified["object"]["emoji"]) assert is_nil(modified["object"]["like_count"]) assert is_nil(modified["object"]["announcements"]) assert is_nil(modified["object"]["announcement_count"]) assert is_nil(modified["object"]["likes"]) end test "the directMessage flag is present" do user = insert(:user) other_user = insert(:user) {:ok, activity} = CommonAPI.post(user, %{status: "2hu :moominmamma:"}) {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data) assert modified["directMessage"] == false {:ok, activity} = CommonAPI.post(user, %{status: "@#{other_user.nickname} :moominmamma:"}) {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data) assert modified["directMessage"] == false {:ok, activity} = CommonAPI.post(user, %{ status: "@#{other_user.nickname} :moominmamma:", visibility: "direct" }) {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data) assert modified["directMessage"] == true end test "it strips BCC field" do user = insert(:user) {:ok, list} = Pleroma.List.create("foo", user) {:ok, activity} = CommonAPI.post(user, %{status: "foobar", visibility: "list:#{list.id}"}) {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data) assert is_nil(modified["bcc"]) end test "it can handle Listen activities" do listen_activity = insert(:listen) {:ok, modified} = Transmogrifier.prepare_outgoing(listen_activity.data) assert modified["type"] == "Listen" user = insert(:user) {:ok, activity} = CommonAPI.listen(user, %{"title" => "lain radio episode 1"}) {:ok, _modified} = Transmogrifier.prepare_outgoing(activity.data) end test "custom emoji urls are URI encoded" do # :dinosaur: filename has a space -> dino walking.gif user = insert(:user) {:ok, activity} = CommonAPI.post(user, %{status: "everybody do the dinosaur :dinosaur:"}) {:ok, prepared} = Transmogrifier.prepare_outgoing(activity.data) assert length(prepared["object"]["tag"]) == 1 url = prepared["object"]["tag"] |> List.first() |> Map.get("icon") |> Map.get("url") assert url == "http://localhost:4001/emoji/dino%20walking.gif" end test "Updates of Notes are handled" do user = insert(:user) {:ok, activity} = CommonAPI.post(user, %{status: "everybody do the dinosaur :dinosaur:"}) {:ok, update} = CommonAPI.update(user, activity, %{status: "mew mew :blank:"}) {:ok, prepared} = Transmogrifier.prepare_outgoing(update.data) assert %{ "content" => "mew mew :blank:", "tag" => [%{"name" => ":blank:", "type" => "Emoji"}], "formerRepresentations" => %{ "orderedItems" => [ %{ "content" => "everybody do the dinosaur :dinosaur:", "tag" => [%{"name" => ":dinosaur:", "type" => "Emoji"}] } ] } } = prepared["object"] end end describe "user upgrade" do test "it upgrades a user to activitypub" do user = insert(:user, %{ nickname: "rye@niu.moe", local: false, ap_id: "https://niu.moe/users/rye", follower_address: User.ap_followers(%User{nickname: "rye@niu.moe"}) }) user_two = insert(:user) Pleroma.FollowingRelationship.follow(user_two, user, :follow_accept) {:ok, activity} = CommonAPI.post(user, %{status: "test"}) {:ok, unrelated_activity} = CommonAPI.post(user_two, %{status: "test"}) assert "http://localhost:4001/users/rye@niu.moe/followers" in activity.recipients user = User.get_cached_by_id(user.id) assert user.note_count == 1 {:ok, user} = Transmogrifier.upgrade_user_from_ap_id("https://niu.moe/users/rye") ObanHelpers.perform_all() assert user.ap_enabled assert user.note_count == 1 assert user.follower_address == "https://niu.moe/users/rye/followers" assert user.following_address == "https://niu.moe/users/rye/following" user = User.get_cached_by_id(user.id) assert user.note_count == 1 activity = Activity.get_by_id(activity.id) assert user.follower_address in activity.recipients assert %{ "url" => [ %{ "href" => "https://cdn.niu.moe/accounts/avatars/000/033/323/original/fd7f8ae0b3ffedc9.jpeg" } ] } = user.avatar assert %{ "url" => [ %{ "href" => "https://cdn.niu.moe/accounts/headers/000/033/323/original/850b3448fa5fd477.png" } ] } = user.banner refute "..." in activity.recipients unrelated_activity = Activity.get_by_id(unrelated_activity.id) refute user.follower_address in unrelated_activity.recipients user_two = User.get_cached_by_id(user_two.id) assert User.following?(user_two, user) refute "..." in User.following(user_two) end end describe "actor rewriting" do test "it fixes the actor URL property to be a proper URI" do data = %{ "url" => %{"href" => "http://example.com"} } rewritten = Transmogrifier.maybe_fix_user_object(data) assert rewritten["url"] == "http://example.com" end end describe "actor origin containment" do test "it rejects activities which reference objects with bogus origins" do data = %{ "@context" => "https://www.w3.org/ns/activitystreams", "id" => "http://mastodon.example.org/users/admin/activities/1234", "actor" => "http://mastodon.example.org/users/admin", "to" => ["https://www.w3.org/ns/activitystreams#Public"], "object" => "https://info.pleroma.site/activity.json", "type" => "Announce" } assert capture_log(fn -> {:error, _} = Transmogrifier.handle_incoming(data) end) =~ "Object containment failed" end test "it rejects activities which reference objects that have an incorrect attribution (variant 1)" do data = %{ "@context" => "https://www.w3.org/ns/activitystreams", "id" => "http://mastodon.example.org/users/admin/activities/1234", "actor" => "http://mastodon.example.org/users/admin", "to" => ["https://www.w3.org/ns/activitystreams#Public"], "object" => "https://info.pleroma.site/activity2.json", "type" => "Announce" } assert capture_log(fn -> {:error, _} = Transmogrifier.handle_incoming(data) end) =~ "Object containment failed" end test "it rejects activities which reference objects that have an incorrect attribution (variant 2)" do data = %{ "@context" => "https://www.w3.org/ns/activitystreams", "id" => "http://mastodon.example.org/users/admin/activities/1234", "actor" => "http://mastodon.example.org/users/admin", "to" => ["https://www.w3.org/ns/activitystreams#Public"], "object" => "https://info.pleroma.site/activity3.json", "type" => "Announce" } assert capture_log(fn -> {:error, _} = Transmogrifier.handle_incoming(data) end) =~ "Object containment failed" end end describe "fix_explicit_addressing" do setup do user = insert(:user) [user: user] end test "moves non-explicitly mentioned actors to cc", %{user: user} do explicitly_mentioned_actors = [ "https://pleroma.gold/users/user1", "https://pleroma.gold/user2" ] object = %{ "actor" => user.ap_id, "to" => explicitly_mentioned_actors ++ ["https://social.beepboop.ga/users/dirb"], "cc" => [], "tag" => Enum.map(explicitly_mentioned_actors, fn href -> %{"type" => "Mention", "href" => href} end) } fixed_object = Transmogrifier.fix_explicit_addressing(object, user.follower_address) assert Enum.all?(explicitly_mentioned_actors, &(&1 in fixed_object["to"])) refute "https://social.beepboop.ga/users/dirb" in fixed_object["to"] assert "https://social.beepboop.ga/users/dirb" in fixed_object["cc"] end test "does not move actor's follower collection to cc", %{user: user} do object = %{ "actor" => user.ap_id, "to" => [user.follower_address], "cc" => [] } fixed_object = Transmogrifier.fix_explicit_addressing(object, user.follower_address) assert user.follower_address in fixed_object["to"] refute user.follower_address in fixed_object["cc"] end test "removes recipient's follower collection from cc", %{user: user} do recipient = insert(:user) object = %{ "actor" => user.ap_id, "to" => [recipient.ap_id, "https://www.w3.org/ns/activitystreams#Public"], "cc" => [user.follower_address, recipient.follower_address] } fixed_object = Transmogrifier.fix_explicit_addressing(object, user.follower_address) assert user.follower_address in fixed_object["cc"] refute recipient.follower_address in fixed_object["cc"] refute recipient.follower_address in fixed_object["to"] end end describe "fix_summary/1" do test "returns fixed object" do assert Transmogrifier.fix_summary(%{"summary" => nil}) == %{"summary" => ""} assert Transmogrifier.fix_summary(%{"summary" => "ok"}) == %{"summary" => "ok"} assert Transmogrifier.fix_summary(%{}) == %{"summary" => ""} end end describe "fix_url/1" do test "fixes data for object when url is map" do object = %{ "url" => %{ "type" => "Link", "mimeType" => "video/mp4", "href" => "https://peede8d-46fb-ad81-2d4c2d1630e3-480.mp4" } } assert Transmogrifier.fix_url(object) == %{ "url" => "https://peede8d-46fb-ad81-2d4c2d1630e3-480.mp4" } end test "returns non-modified object" do assert Transmogrifier.fix_url(%{"type" => "Text"}) == %{"type" => "Text"} end end describe "get_obj_helper/2" do test "returns nil when cannot normalize object" do assert capture_log(fn -> refute Transmogrifier.get_obj_helper("test-obj-id") end) =~ "Unsupported URI scheme" end @tag capture_log: true test "returns {:ok, %Object{}} for success case" do assert {:ok, %Object{}} = Transmogrifier.get_obj_helper( "https://mstdn.io/users/mayuutann/statuses/99568293732299394" ) end end describe "fix_attachments/1" do test "puts dimensions into attachment url field" do object = %{ "attachment" => [ %{ "type" => "Document", "name" => "Hello world", "url" => "https://media.example.tld/1.jpg", "width" => 880, "height" => 960, "mediaType" => "image/jpeg", "blurhash" => "eTKL26+HDjcEIBVl;ds+K6t301W.t7nit7y1E,R:v}ai4nXSt7V@of" } ] } expected = %{ "attachment" => [ %{ "type" => "Document", "name" => "Hello world", "url" => [ %{ "type" => "Link", "mediaType" => "image/jpeg", "href" => "https://media.example.tld/1.jpg", "width" => 880, "height" => 960 } ], "mediaType" => "image/jpeg", "blurhash" => "eTKL26+HDjcEIBVl;ds+K6t301W.t7nit7y1E,R:v}ai4nXSt7V@of" } ] } assert Transmogrifier.fix_attachments(object) == expected end end describe "prepare_object/1" do test "it processes history" do original = %{ "formerRepresentations" => %{ "orderedItems" => [ %{ "generator" => %{}, "emoji" => %{"blobcat" => "http://localhost:4001/emoji/blobcat.png"} } ] } } processed = Transmogrifier.prepare_object(original) history_item = Enum.at(processed["formerRepresentations"]["orderedItems"], 0) refute Map.has_key?(history_item, "generator") assert [%{"name" => ":blobcat:"}] = history_item["tag"] end test "it works when there is no or bad history" do original = %{ "formerRepresentations" => %{ "items" => [ %{ "generator" => %{}, "emoji" => %{"blobcat" => "http://localhost:4001/emoji/blobcat.png"} } ] } } processed = Transmogrifier.prepare_object(original) assert processed["formerRepresentations"] == original["formerRepresentations"] end end end