X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=test%2Fweb%2Factivity_pub%2Ftransmogrifier_test.exs;h=e5e3c8d33ddee2afd9b39ffd25bdd290b8e870bf;hb=ad5263c647aea65dbeb4c329825671895e0a8863;hp=afa25bb600288751f5b4e48999fb131449898630;hpb=4a3dbd9d4e052969460bad19dfc535908027ed03;p=akkoma

diff --git a/test/web/activity_pub/transmogrifier_test.exs b/test/web/activity_pub/transmogrifier_test.exs
index afa25bb60..ee71de8d0 100644
--- a/test/web/activity_pub/transmogrifier_test.exs
+++ b/test/web/activity_pub/transmogrifier_test.exs
@@ -1,17 +1,28 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
   use Pleroma.DataCase
+  alias Pleroma.Activity
+  alias Pleroma.Object
+  alias Pleroma.Object.Fetcher
+  alias Pleroma.Repo
+  alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Transmogrifier
   alias Pleroma.Web.ActivityPub.Utils
-  alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.OStatus
-  alias Pleroma.Activity
-  alias Pleroma.User
-  alias Pleroma.Repo
   alias Pleroma.Web.Websub.WebsubClientSubscription
 
   import Pleroma.Factory
   alias Pleroma.Web.CommonAPI
 
+  setup_all do
+    Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
+    :ok
+  end
+
   describe "handle_incoming" do
     test "it ignores an incoming notice if we already have it" do
       activity = insert(:note_activity)
@@ -40,16 +51,14 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
         |> Map.put("object", object)
 
       {:ok, returned_activity} = Transmogrifier.handle_incoming(data)
+      returned_object = Object.normalize(returned_activity.data["object"])
 
       assert activity =
-               Activity.get_create_activity_by_object_ap_id(
+               Activity.get_create_by_object_ap_id(
                  "tag:shitposter.club,2017-05-05:noticeId=2827873:objectType=comment"
                )
 
-      assert returned_activity.data["object"]["inReplyToAtomUri"] ==
-               "https://shitposter.club/notice/2827873"
-
-      assert returned_activity.data["object"]["inReplyToStatusId"] == activity.id
+      assert returned_object.data["inReplyToAtomUri"] == "https://shitposter.club/notice/2827873"
     end
 
     test "it works for incoming notices" do
@@ -72,7 +81,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       assert data["actor"] == "http://mastodon.example.org/users/admin"
 
-      object = data["object"]
+      object = Object.normalize(data["object"]).data
       assert object["id"] == "http://mastodon.example.org/users/admin/statuses/99512778738411822"
 
       assert object["to"] == ["https://www.w3.org/ns/activitystreams#Public"]
@@ -90,16 +99,18 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       assert object["sensitive"] == true
 
-      user = User.get_by_ap_id(object["actor"])
+      user = User.get_cached_by_ap_id(object["actor"])
 
-      assert user.info["note_count"] == 1
+      assert user.info.note_count == 1
     end
 
     test "it works for incoming notices with hashtags" do
       data = File.read!("test/fixtures/mastodon-post-activity-hashtag.json") |> Poison.decode!()
 
       {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
-      assert Enum.at(data["object"]["tag"], 2) == "moo"
+      object = Object.normalize(data["object"])
+
+      assert Enum.at(object.data["tag"], 2) == "moo"
     end
 
     test "it works for incoming notices with contentMap" do
@@ -107,8 +118,9 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
         File.read!("test/fixtures/mastodon-post-activity-contentmap.json") |> Poison.decode!()
 
       {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+      object = Object.normalize(data["object"])
 
-      assert data["object"]["content"] ==
+      assert object.data["content"] ==
                "<p><span class=\"h-card\"><a href=\"http://localtesting.pleroma.lol/users/lain\" class=\"u-url mention\">@<span>lain</span></a></span></p>"
     end
 
@@ -116,11 +128,77 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       data = File.read!("test/fixtures/kroeg-post-activity.json") |> Poison.decode!()
 
       {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+      object = Object.normalize(data["object"])
 
-      assert data["object"]["content"] ==
+      assert object.data["content"] ==
                "<p>henlo from my Psion netBook</p><p>message sent from my Psion netBook</p>"
     end
 
+    test "it works for incoming announces with actor being inlined (kroeg)" do
+      data = File.read!("test/fixtures/kroeg-announce-with-inline-actor.json") |> Poison.decode!()
+
+      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+
+      assert data["actor"] == "https://puckipedia.com/"
+    end
+
+    test "it works for incoming notices with tag not being an array (kroeg)" do
+      data = File.read!("test/fixtures/kroeg-array-less-emoji.json") |> Poison.decode!()
+
+      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+      object = Object.normalize(data["object"])
+
+      assert object.data["emoji"] == %{
+               "icon_e_smile" => "https://puckipedia.com/forum/images/smilies/icon_e_smile.png"
+             }
+
+      data = File.read!("test/fixtures/kroeg-array-less-hashtag.json") |> Poison.decode!()
+
+      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+      object = Object.normalize(data["object"])
+
+      assert "test" in object.data["tag"]
+    end
+
+    test "it works for incoming notices with url not being a string (prismo)" do
+      data = File.read!("test/fixtures/prismo-url-map.json") |> Poison.decode!()
+
+      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+      object = Object.normalize(data["object"])
+
+      assert object.data["url"] == "https://prismo.news/posts/83"
+    end
+
+    test "it cleans up incoming notices which are not really DMs" do
+      user = insert(:user)
+      other_user = insert(:user)
+
+      to = [user.ap_id, other_user.ap_id]
+
+      data =
+        File.read!("test/fixtures/mastodon-post-activity.json")
+        |> Poison.decode!()
+        |> Map.put("to", to)
+        |> Map.put("cc", [])
+
+      object =
+        data["object"]
+        |> Map.put("to", to)
+        |> Map.put("cc", [])
+
+      data = Map.put(data, "object", object)
+
+      {:ok, %Activity{data: data, local: false} = activity} = Transmogrifier.handle_incoming(data)
+
+      assert data["to"] == []
+      assert data["cc"] == to
+
+      object_data = Object.normalize(activity).data
+
+      assert object_data["to"] == []
+      assert object_data["cc"] == to
+    end
+
     test "it works for incoming follow requests" do
       user = insert(:user)
 
@@ -134,7 +212,27 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       assert data["actor"] == "http://mastodon.example.org/users/admin"
       assert data["type"] == "Follow"
       assert data["id"] == "http://mastodon.example.org/users/admin#follows/2"
-      assert User.following?(User.get_by_ap_id(data["actor"]), user)
+      assert User.following?(User.get_cached_by_ap_id(data["actor"]), user)
+    end
+
+    test "it rejects incoming follow requests from blocked users when deny_follow_blocked is enabled" do
+      Pleroma.Config.put([:user, :deny_follow_blocked], true)
+
+      user = insert(:user)
+      {:ok, target} = User.get_or_fetch("http://mastodon.example.org/users/admin")
+
+      {:ok, user} = User.block(user, target)
+
+      data =
+        File.read!("test/fixtures/mastodon-follow-activity.json")
+        |> Poison.decode!()
+        |> Map.put("object", user.ap_id)
+
+      {:ok, %Activity{data: %{"id" => id}}} = Transmogrifier.handle_incoming(data)
+
+      %Activity{} = activity = Activity.get_by_ap_id(id)
+
+      assert activity.data["state"] == "reject"
     end
 
     test "it works for incoming follow requests from hubzilla" do
@@ -151,7 +249,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       assert data["actor"] == "https://hubzilla.example.org/channel/kaniini"
       assert data["type"] == "Follow"
       assert data["id"] == "https://hubzilla.example.org/channel/kaniini#follows/2"
-      assert User.following?(User.get_by_ap_id(data["actor"]), user)
+      assert User.following?(User.get_cached_by_ap_id(data["actor"]), user)
     end
 
     test "it works for incoming likes" do
@@ -161,14 +259,14 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       data =
         File.read!("test/fixtures/mastodon-like.json")
         |> Poison.decode!()
-        |> Map.put("object", activity.data["object"]["id"])
+        |> Map.put("object", activity.data["object"])
 
       {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
 
       assert data["actor"] == "http://mastodon.example.org/users/admin"
       assert data["type"] == "Like"
       assert data["id"] == "http://mastodon.example.org/users/admin#likes/2"
-      assert data["object"] == activity.data["object"]["id"]
+      assert data["object"] == activity.data["object"]
     end
 
     test "it returns an error for incoming unlikes wihout a like activity" do
@@ -178,7 +276,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       data =
         File.read!("test/fixtures/mastodon-undo-like.json")
         |> Poison.decode!()
-        |> Map.put("object", activity.data["object"]["id"])
+        |> Map.put("object", activity.data["object"])
 
       assert Transmogrifier.handle_incoming(data) == :error
     end
@@ -190,7 +288,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       like_data =
         File.read!("test/fixtures/mastodon-like.json")
         |> Poison.decode!()
-        |> Map.put("object", activity.data["object"]["id"])
+        |> Map.put("object", activity.data["object"])
 
       {:ok, %Activity{data: like_data, local: false}} = Transmogrifier.handle_incoming(like_data)
 
@@ -222,7 +320,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       assert data["object"] ==
                "http://mastodon.example.org/users/admin/statuses/99541947525187367"
 
-      assert Activity.get_create_activity_by_object_ap_id(data["object"])
+      assert Activity.get_create_by_object_ap_id(data["object"])
     end
 
     test "it works for incoming announces with an existing activity" do
@@ -232,7 +330,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       data =
         File.read!("test/fixtures/mastodon-announce.json")
         |> Poison.decode!()
-        |> Map.put("object", activity.data["object"]["id"])
+        |> Map.put("object", activity.data["object"])
 
       {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
 
@@ -242,9 +340,72 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       assert data["id"] ==
                "http://mastodon.example.org/users/admin/statuses/99542391527669785/activity"
 
-      assert data["object"] == activity.data["object"]["id"]
+      assert data["object"] == activity.data["object"]
+
+      assert Activity.get_create_by_object_ap_id(data["object"]).id == activity.id
+    end
+
+    test "it does not clobber the addressing on announce activities" do
+      user = insert(:user)
+      {:ok, activity} = CommonAPI.post(user, %{"status" => "hey"})
+
+      data =
+        File.read!("test/fixtures/mastodon-announce.json")
+        |> Poison.decode!()
+        |> Map.put("object", Object.normalize(activity).data["id"])
+        |> Map.put("to", ["http://mastodon.example.org/users/admin/followers"])
+        |> Map.put("cc", [])
+
+      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
 
-      assert Activity.get_create_activity_by_object_ap_id(data["object"]).id == activity.id
+      assert data["to"] == ["http://mastodon.example.org/users/admin/followers"]
+    end
+
+    test "it ensures that as:Public activities make it to their followers collection" do
+      user = insert(:user)
+
+      data =
+        File.read!("test/fixtures/mastodon-post-activity.json")
+        |> Poison.decode!()
+        |> Map.put("actor", user.ap_id)
+        |> Map.put("to", ["https://www.w3.org/ns/activitystreams#Public"])
+        |> Map.put("cc", [])
+
+      object =
+        data["object"]
+        |> Map.put("attributedTo", user.ap_id)
+        |> Map.put("to", ["https://www.w3.org/ns/activitystreams#Public"])
+        |> Map.put("cc", [])
+
+      data = Map.put(data, "object", object)
+
+      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+
+      assert data["cc"] == [User.ap_followers(user)]
+    end
+
+    test "it ensures that address fields become lists" do
+      user = insert(:user)
+
+      data =
+        File.read!("test/fixtures/mastodon-post-activity.json")
+        |> Poison.decode!()
+        |> Map.put("actor", user.ap_id)
+        |> Map.put("to", nil)
+        |> Map.put("cc", nil)
+
+      object =
+        data["object"]
+        |> Map.put("attributedTo", user.ap_id)
+        |> Map.put("to", nil)
+        |> Map.put("cc", nil)
+
+      data = Map.put(data, "object", object)
+
+      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+
+      assert !is_nil(data["to"])
+      assert !is_nil(data["cc"])
     end
 
     test "it works for incoming update activities" do
@@ -275,7 +436,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
                }
              ]
 
-      assert user.info["banner"]["url"] == [
+      assert user.info.banner["url"] == [
                %{
                  "href" =>
                    "https://cd.niu.moe/accounts/headers/000/033/323/original/850b3448fa5fd477.png"
@@ -305,7 +466,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(update_data)
 
       user = User.get_cached_by_ap_id(data["actor"])
-      assert user.info["locked"] == true
+      assert user.info.locked == true
     end
 
     test "it works for incoming deletes" do
@@ -317,7 +478,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       object =
         data["object"]
-        |> Map.put("id", activity.data["object"]["id"])
+        |> Map.put("id", activity.data["object"])
 
       data =
         data
@@ -326,7 +487,27 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       {:ok, %Activity{local: false}} = Transmogrifier.handle_incoming(data)
 
-      refute Repo.get(Activity, activity.id)
+      refute Activity.get_by_id(activity.id)
+    end
+
+    test "it fails for incoming deletes with spoofed origin" do
+      activity = insert(:note_activity)
+
+      data =
+        File.read!("test/fixtures/mastodon-delete.json")
+        |> Poison.decode!()
+
+      object =
+        data["object"]
+        |> Map.put("id", activity.data["object"])
+
+      data =
+        data
+        |> Map.put("object", object)
+
+      :error = Transmogrifier.handle_incoming(data)
+
+      assert Activity.get_by_id(activity.id)
     end
 
     test "it works for incoming unannounces with an existing notice" do
@@ -336,7 +517,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       announce_data =
         File.read!("test/fixtures/mastodon-announce.json")
         |> Poison.decode!()
-        |> Map.put("object", activity.data["object"]["id"])
+        |> Map.put("object", activity.data["object"])
 
       {:ok, %Activity{data: announce_data, local: false}} =
         Transmogrifier.handle_incoming(announce_data)
@@ -351,7 +532,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       assert data["type"] == "Undo"
       assert data["object"]["type"] == "Announce"
-      assert data["object"]["object"] == activity.data["object"]["id"]
+      assert data["object"]["object"] == activity.data["object"]
 
       assert data["object"]["id"] ==
                "http://mastodon.example.org/users/admin/statuses/99542391527669785/activity"
@@ -379,7 +560,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       assert data["object"]["object"] == user.ap_id
       assert data["actor"] == "http://mastodon.example.org/users/admin"
 
-      refute User.following?(User.get_by_ap_id(data["actor"]), user)
+      refute User.following?(User.get_cached_by_ap_id(data["actor"]), user)
     end
 
     test "it works for incoming blocks" do
@@ -396,7 +577,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       assert data["object"] == user.ap_id
       assert data["actor"] == "http://mastodon.example.org/users/admin"
 
-      blocker = User.get_by_ap_id(data["actor"])
+      blocker = User.get_cached_by_ap_id(data["actor"])
 
       assert User.blocks?(blocker, user)
     end
@@ -423,8 +604,8 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       assert data["object"] == blocked.ap_id
       assert data["actor"] == blocker.ap_id
 
-      blocker = User.get_by_ap_id(data["actor"])
-      blocked = User.get_by_ap_id(data["object"])
+      blocker = User.get_cached_by_ap_id(data["actor"])
+      blocked = User.get_cached_by_ap_id(data["object"])
 
       assert User.blocks?(blocker, blocked)
 
@@ -453,7 +634,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       assert data["object"]["object"] == user.ap_id
       assert data["actor"] == "http://mastodon.example.org/users/admin"
 
-      blocker = User.get_by_ap_id(data["actor"])
+      blocker = User.get_cached_by_ap_id(data["actor"])
 
       refute User.blocks?(blocker, user)
     end
@@ -484,14 +665,14 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       assert activity.data["object"] == follow_activity.data["id"]
 
-      follower = Repo.get(User, follower.id)
+      follower = User.get_cached_by_id(follower.id)
 
       assert User.following?(follower, followed) == true
     end
 
     test "it works for incoming accepts which were orphaned" do
       follower = insert(:user)
-      followed = insert(:user, %{info: %{"locked" => true}})
+      followed = insert(:user, %{info: %User.Info{locked: true}})
 
       {:ok, follow_activity} = ActivityPub.follow(follower, followed)
 
@@ -506,14 +687,14 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       {:ok, activity} = Transmogrifier.handle_incoming(accept_data)
       assert activity.data["object"] == follow_activity.data["id"]
 
-      follower = Repo.get(User, follower.id)
+      follower = User.get_cached_by_id(follower.id)
 
       assert User.following?(follower, followed) == true
     end
 
     test "it works for incoming accepts which are referenced by IRI only" do
       follower = insert(:user)
-      followed = insert(:user, %{info: %{"locked" => true}})
+      followed = insert(:user, %{info: %User.Info{locked: true}})
 
       {:ok, follow_activity} = ActivityPub.follow(follower, followed)
 
@@ -526,14 +707,14 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       {:ok, activity} = Transmogrifier.handle_incoming(accept_data)
       assert activity.data["object"] == follow_activity.data["id"]
 
-      follower = Repo.get(User, follower.id)
+      follower = User.get_cached_by_id(follower.id)
 
       assert User.following?(follower, followed) == true
     end
 
     test "it fails for incoming accepts which cannot be correlated" do
       follower = insert(:user)
-      followed = insert(:user, %{info: %{"locked" => true}})
+      followed = insert(:user, %{info: %User.Info{locked: true}})
 
       accept_data =
         File.read!("test/fixtures/mastodon-accept-activity.json")
@@ -545,14 +726,14 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       :error = Transmogrifier.handle_incoming(accept_data)
 
-      follower = Repo.get(User, follower.id)
+      follower = User.get_cached_by_id(follower.id)
 
       refute User.following?(follower, followed) == true
     end
 
     test "it fails for incoming rejects which cannot be correlated" do
       follower = insert(:user)
-      followed = insert(:user, %{info: %{"locked" => true}})
+      followed = insert(:user, %{info: %User.Info{locked: true}})
 
       accept_data =
         File.read!("test/fixtures/mastodon-reject-activity.json")
@@ -564,14 +745,14 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       :error = Transmogrifier.handle_incoming(accept_data)
 
-      follower = Repo.get(User, follower.id)
+      follower = User.get_cached_by_id(follower.id)
 
       refute User.following?(follower, followed) == true
     end
 
     test "it works for incoming rejects which are orphaned" do
       follower = insert(:user)
-      followed = insert(:user, %{info: %{"locked" => true}})
+      followed = insert(:user, %{info: %User.Info{locked: true}})
 
       {:ok, follower} = User.follow(follower, followed)
       {:ok, _follow_activity} = ActivityPub.follow(follower, followed)
@@ -589,14 +770,14 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       {:ok, activity} = Transmogrifier.handle_incoming(reject_data)
       refute activity.local
 
-      follower = Repo.get(User, follower.id)
+      follower = User.get_cached_by_id(follower.id)
 
       assert User.following?(follower, followed) == false
     end
 
     test "it works for incoming rejects which are referenced by IRI only" do
       follower = insert(:user)
-      followed = insert(:user, %{info: %{"locked" => true}})
+      followed = insert(:user, %{info: %User.Info{locked: true}})
 
       {:ok, follower} = User.follow(follower, followed)
       {:ok, follow_activity} = ActivityPub.follow(follower, followed)
@@ -611,7 +792,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       {:ok, %Activity{data: _}} = Transmogrifier.handle_incoming(reject_data)
 
-      follower = Repo.get(User, follower.id)
+      follower = User.get_cached_by_id(follower.id)
 
       assert User.following?(follower, followed) == false
     end
@@ -627,6 +808,60 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       :error = Transmogrifier.handle_incoming(data)
     end
+
+    test "it remaps video URLs as attachments if necessary" do
+      {:ok, object} =
+        Fetcher.fetch_object_from_id(
+          "https://peertube.moe/videos/watch/df5f464b-be8d-46fb-ad81-2d4c2d1630e3"
+        )
+
+      attachment = %{
+        "type" => "Link",
+        "mediaType" => "video/mp4",
+        "href" =>
+          "https://peertube.moe/static/webseed/df5f464b-be8d-46fb-ad81-2d4c2d1630e3-480.mp4",
+        "mimeType" => "video/mp4",
+        "size" => 5_015_880,
+        "url" => [
+          %{
+            "href" =>
+              "https://peertube.moe/static/webseed/df5f464b-be8d-46fb-ad81-2d4c2d1630e3-480.mp4",
+            "mediaType" => "video/mp4",
+            "type" => "Link"
+          }
+        ],
+        "width" => 480
+      }
+
+      assert object.data["url"] ==
+               "https://peertube.moe/videos/watch/df5f464b-be8d-46fb-ad81-2d4c2d1630e3"
+
+      assert object.data["attachment"] == [attachment]
+    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.data["object"])
+
+      message = %{
+        "@context" => "https://www.w3.org/ns/activitystreams",
+        "cc" => [user.ap_id],
+        "object" => [user.ap_id, object.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, object.data["id"]]
+      assert activity.data["content"] == "blocked AND reported!!!"
+      assert activity.data["actor"] == other_user.ap_id
+      assert activity.data["cc"] == [user.ap_id]
+    end
   end
 
   describe "prepare outgoing" do
@@ -671,7 +906,9 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       {:ok, activity} = CommonAPI.post(user, %{"status" => "hey"})
       {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data)
 
-      assert modified["@context"] == "https://www.w3.org/ns/activitystreams"
+      assert modified["@context"] ==
+               Pleroma.Web.ActivityPub.Utils.make_json_ld_header()["@context"]
+
       assert modified["object"]["conversation"] == modified["context"]
     end
 
@@ -709,6 +946,88 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       assert modified["object"]["inReplyTo"] == "http://gs.example.org:4040/index.php/notice/29"
     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:"})
+
+      {: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"]["context_id"])
+    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"]["context_id"])
+    end
+
+    test "it adds like collection to object" do
+      activity = insert(:note_activity)
+      {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data)
+
+      assert modified["object"]["likes"]["type"] == "OrderedCollection"
+      assert modified["object"]["likes"]["totalItems"] == 0
+    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
   end
 
   describe "user upgrade" do
@@ -727,21 +1046,18 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       {:ok, unrelated_activity} = CommonAPI.post(user_two, %{"status" => "test"})
       assert "http://localhost:4001/users/rye@niu.moe/followers" in activity.recipients
 
-      user = Repo.get(User, user.id)
-      assert user.info["note_count"] == 1
+      user = User.get_cached_by_id(user.id)
+      assert user.info.note_count == 1
 
       {:ok, user} = Transmogrifier.upgrade_user_from_ap_id("https://niu.moe/users/rye")
-      assert user.info["ap_enabled"]
-      assert user.info["note_count"] == 1
+      assert user.info.ap_enabled
+      assert user.info.note_count == 1
       assert user.follower_address == "https://niu.moe/users/rye/followers"
 
-      # Wait for the background task
-      :timer.sleep(1000)
-
-      user = Repo.get(User, user.id)
-      assert user.info["note_count"] == 1
+      user = User.get_cached_by_id(user.id)
+      assert user.info.note_count == 1
 
-      activity = Repo.get(Activity, activity.id)
+      activity = Activity.get_by_id(activity.id)
       assert user.follower_address in activity.recipients
 
       assert %{
@@ -760,14 +1076,14 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
                      "https://cdn.niu.moe/accounts/headers/000/033/323/original/850b3448fa5fd477.png"
                  }
                ]
-             } = user.info["banner"]
+             } = user.info.banner
 
       refute "..." in activity.recipients
 
-      unrelated_activity = Repo.get(Activity, unrelated_activity.id)
+      unrelated_activity = Activity.get_by_id(unrelated_activity.id)
       refute user.follower_address in unrelated_activity.recipients
 
-      user_two = Repo.get(User, user_two.id)
+      user_two = User.get_cached_by_id(user_two.id)
       assert user.follower_address in user_two.following
       refute "..." in user_two.following
     end
@@ -800,23 +1116,137 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
   end
 
   describe "actor origin containment" do
-    test "it rejects objects with a bogus origin" do
-      {:error, _} = ActivityPub.fetch_object_from_id("https://info.pleroma.site/activity.json")
+    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"
+      }
+
+      :error = Transmogrifier.handle_incoming(data)
     end
 
-    test "it rejects activities which reference objects with bogus origins" do
-      user = insert(:user, %{local: false})
+    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"
+      }
+
+      :error = Transmogrifier.handle_incoming(data)
+    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" => user.ap_id <> "/activities/1234",
-        "actor" => user.ap_id,
+        "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",
+        "object" => "https://info.pleroma.site/activity3.json",
         "type" => "Announce"
       }
 
       :error = Transmogrifier.handle_incoming(data)
     end
   end
+
+  describe "reserialization" do
+    test "successfully reserializes a message with inReplyTo == nil" do
+      user = insert(:user)
+
+      message = %{
+        "@context" => "https://www.w3.org/ns/activitystreams",
+        "to" => ["https://www.w3.org/ns/activitystreams#Public"],
+        "cc" => [],
+        "type" => "Create",
+        "object" => %{
+          "to" => ["https://www.w3.org/ns/activitystreams#Public"],
+          "cc" => [],
+          "type" => "Note",
+          "content" => "Hi",
+          "inReplyTo" => nil,
+          "attributedTo" => user.ap_id
+        },
+        "actor" => user.ap_id
+      }
+
+      {:ok, activity} = Transmogrifier.handle_incoming(message)
+
+      {:ok, _} = Transmogrifier.prepare_outgoing(activity.data)
+    end
+
+    test "successfully reserializes a message with AS2 objects in IR" do
+      user = insert(:user)
+
+      message = %{
+        "@context" => "https://www.w3.org/ns/activitystreams",
+        "to" => ["https://www.w3.org/ns/activitystreams#Public"],
+        "cc" => [],
+        "type" => "Create",
+        "object" => %{
+          "to" => ["https://www.w3.org/ns/activitystreams#Public"],
+          "cc" => [],
+          "type" => "Note",
+          "content" => "Hi",
+          "inReplyTo" => nil,
+          "attributedTo" => user.ap_id,
+          "tag" => [
+            %{"name" => "#2hu", "href" => "http://example.com/2hu", "type" => "Hashtag"},
+            %{"name" => "Bob", "href" => "http://example.com/bob", "type" => "Mention"}
+          ]
+        },
+        "actor" => user.ap_id
+      }
+
+      {:ok, activity} = Transmogrifier.handle_incoming(message)
+
+      {:ok, _} = Transmogrifier.prepare_outgoing(activity.data)
+    end
+  end
+
+  describe "fix_explicit_addressing" do
+    test "moves non-explicitly mentioned actors to cc" do
+      user = insert(:user)
+
+      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)
+      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" do
+      user = insert(:user)
+
+      object = %{
+        "actor" => user.ap_id,
+        "to" => [user.follower_address],
+        "cc" => []
+      }
+
+      fixed_object = Transmogrifier.fix_explicit_addressing(object)
+      assert user.follower_address in fixed_object["to"]
+      refute user.follower_address in fixed_object["cc"]
+    end
+  end
 end