total rebaseHEADmaster

28 files changed, 817 insertions, 2 deletions

diff --git a/test/pleroma/web/activity_pub/mrf/activity_expiration_policy_test.exs b/test/pleroma/web/activity_pub/mrf/activity_expiration_policy_test.exs
index 817eba3..817eba3 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/activity_expiration_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/activity_expiration_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/anti_followbot_policy_test.exs b/test/pleroma/web/activity_pub/mrf/anti_followbot_policy_test.exs
index 732a5a7..732a5a7 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/anti_followbot_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/anti_followbot_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/anti_link_spam_policy_test.exs b/test/pleroma/web/activity_pub/mrf/anti_link_spam_policy_test.exs
index 303d7ca..303d7ca 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/anti_link_spam_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/anti_link_spam_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/emoji_policy_test.exs b/test/pleroma/web/activity_pub/mrf/emoji_policy_test.exs
new file mode 100644
index 0000000..7350800
--- /dev/null
+++ b/test/pleroma/web/activity_pub/mrf/emoji_policy_test.exs
@@ -0,0 +1,425 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2023 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.EmojiPolicyTest do
+  use Pleroma.DataCase
+
+  require Pleroma.Constants
+
+  alias Pleroma.Web.ActivityPub.MRF
+  alias Pleroma.Web.ActivityPub.MRF.EmojiPolicy
+
+  setup do: clear_config(:mrf_emoji)
+
+  setup do
+    clear_config([:mrf_emoji], %{
+      remove_url: [],
+      remove_shortcode: [],
+      federated_timeline_removal_url: [],
+      federated_timeline_removal_shortcode: []
+    })
+  end
+
+  @emoji_tags [
+    %{
+      "icon" => %{
+        "type" => "Image",
+        "url" => "https://example.org/emoji/biribiri/mikoto_smile2.png"
+      },
+      "id" => "https://example.org/emoji/biribiri/mikoto_smile2.png",
+      "name" => ":mikoto_smile2:",
+      "type" => "Emoji",
+      "updated" => "1970-01-01T00:00:00Z"
+    },
+    %{
+      "icon" => %{
+        "type" => "Image",
+        "url" => "https://example.org/emoji/biribiri/mikoto_smile3.png"
+      },
+      "id" => "https://example.org/emoji/biribiri/mikoto_smile3.png",
+      "name" => ":mikoto_smile3:",
+      "type" => "Emoji",
+      "updated" => "1970-01-01T00:00:00Z"
+    },
+    %{
+      "icon" => %{
+        "type" => "Image",
+        "url" => "https://example.org/emoji/nekomimi_girl_emoji/nekomimi_girl_emoji_007.png"
+      },
+      "id" => "https://example.org/emoji/nekomimi_girl_emoji/nekomimi_girl_emoji_007.png",
+      "name" => ":nekomimi_girl_emoji_007:",
+      "type" => "Emoji",
+      "updated" => "1970-01-01T00:00:00Z"
+    },
+    %{
+      "icon" => %{
+        "type" => "Image",
+        "url" => "https://example.org/test.png"
+      },
+      "id" => "https://example.org/test.png",
+      "name" => ":test:",
+      "type" => "Emoji",
+      "updated" => "1970-01-01T00:00:00Z"
+    }
+  ]
+
+  @misc_tags [%{"type" => "Placeholder"}]
+
+  @user_data %{
+    "type" => "Person",
+    "id" => "https://example.org/placeholder",
+    "name" => "lol",
+    "tag" => @emoji_tags ++ @misc_tags
+  }
+
+  @status_data %{
+    "type" => "Create",
+    "object" => %{
+      "type" => "Note",
+      "id" => "https://example.org/placeholder",
+      "content" => "lol",
+      "tag" => @emoji_tags ++ @misc_tags,
+      "emoji" => %{
+        "mikoto_smile2" => "https://example.org/emoji/biribiri/mikoto_smile2.png",
+        "mikoto_smile3" => "https://example.org/emoji/biribiri/mikoto_smile3.png",
+        "nekomimi_girl_emoji_007" =>
+          "https://example.org/emoji/nekomimi_girl_emoji/nekomimi_girl_emoji_007.png",
+        "test" => "https://example.org/test.png"
+      },
+      "to" => ["https://example.org/self", Pleroma.Constants.as_public()],
+      "cc" => ["https://example.org/someone"]
+    },
+    "to" => ["https://example.org/self", Pleroma.Constants.as_public()],
+    "cc" => ["https://example.org/someone"]
+  }
+
+  @status_data_with_history %{
+    "type" => "Create",
+    "object" =>
+      @status_data["object"]
+      |> Map.merge(%{
+        "formerRepresentations" => %{
+          "type" => "OrderedCollection",
+          "orderedItems" => [@status_data["object"] |> Map.put("content", "older")],
+          "totalItems" => 1
+        }
+      }),
+    "to" => ["https://example.org/self", Pleroma.Constants.as_public()],
+    "cc" => ["https://example.org/someone"]
+  }
+
+  @emoji_react_data %{
+    "type" => "EmojiReact",
+    "tag" => [@emoji_tags |> Enum.at(3)],
+    "object" => "https://example.org/someobject",
+    "to" => ["https://example.org/self"],
+    "cc" => ["https://example.org/someone"]
+  }
+
+  @emoji_react_data_matching_regex %{
+    "type" => "EmojiReact",
+    "tag" => [@emoji_tags |> Enum.at(1)],
+    "object" => "https://example.org/someobject",
+    "to" => ["https://example.org/self"],
+    "cc" => ["https://example.org/someone"]
+  }
+
+  @emoji_react_data_matching_nothing %{
+    "type" => "EmojiReact",
+    "tag" => [@emoji_tags |> Enum.at(2)],
+    "object" => "https://example.org/someobject",
+    "to" => ["https://example.org/self"],
+    "cc" => ["https://example.org/someone"]
+  }
+
+  @emoji_react_data_unicode %{
+    "type" => "EmojiReact",
+    "content" => "😍",
+    "object" => "https://example.org/someobject",
+    "to" => ["https://example.org/self"],
+    "cc" => ["https://example.org/someone"]
+  }
+
+  describe "remove_url" do
+    setup do
+      clear_config([:mrf_emoji, :remove_url], [
+        "https://example.org/test.png",
+        ~r{/biribiri/mikoto_smile[23]\.png},
+        "nekomimi_girl_emoji"
+      ])
+
+      :ok
+    end
+
+    test "processes user" do
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, @user_data)
+
+      expected_tags = [@emoji_tags |> Enum.at(2)] ++ @misc_tags
+
+      assert %{"tag" => ^expected_tags} = filtered
+    end
+
+    test "processes status" do
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, @status_data)
+
+      expected_tags = [@emoji_tags |> Enum.at(2)] ++ @misc_tags
+
+      expected_emoji = %{
+        "nekomimi_girl_emoji_007" =>
+          "https://example.org/emoji/nekomimi_girl_emoji/nekomimi_girl_emoji_007.png"
+      }
+
+      assert %{"object" => %{"tag" => ^expected_tags, "emoji" => ^expected_emoji}} = filtered
+    end
+
+    test "processes status with history" do
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, @status_data_with_history)
+
+      expected_tags = [@emoji_tags |> Enum.at(2)] ++ @misc_tags
+
+      expected_emoji = %{
+        "nekomimi_girl_emoji_007" =>
+          "https://example.org/emoji/nekomimi_girl_emoji/nekomimi_girl_emoji_007.png"
+      }
+
+      assert %{
+               "object" => %{
+                 "tag" => ^expected_tags,
+                 "emoji" => ^expected_emoji,
+                 "formerRepresentations" => %{"orderedItems" => [item]}
+               }
+             } = filtered
+
+      assert %{"tag" => ^expected_tags, "emoji" => ^expected_emoji} = item
+    end
+
+    test "processes updates" do
+      {:ok, filtered} =
+        MRF.filter_one(EmojiPolicy, @status_data_with_history |> Map.put("type", "Update"))
+
+      expected_tags = [@emoji_tags |> Enum.at(2)] ++ @misc_tags
+
+      expected_emoji = %{
+        "nekomimi_girl_emoji_007" =>
+          "https://example.org/emoji/nekomimi_girl_emoji/nekomimi_girl_emoji_007.png"
+      }
+
+      assert %{
+               "object" => %{
+                 "tag" => ^expected_tags,
+                 "emoji" => ^expected_emoji,
+                 "formerRepresentations" => %{"orderedItems" => [item]}
+               }
+             } = filtered
+
+      assert %{"tag" => ^expected_tags, "emoji" => ^expected_emoji} = item
+    end
+
+    test "processes EmojiReact" do
+      assert {:reject, "[EmojiPolicy] Rejected for having disallowed emoji"} ==
+               MRF.filter_one(EmojiPolicy, @emoji_react_data)
+
+      assert {:reject, "[EmojiPolicy] Rejected for having disallowed emoji"} ==
+               MRF.filter_one(EmojiPolicy, @emoji_react_data_matching_regex)
+
+      assert {:ok, @emoji_react_data_matching_nothing} ==
+               MRF.filter_one(EmojiPolicy, @emoji_react_data_matching_nothing)
+
+      assert {:ok, @emoji_react_data_unicode} ==
+               MRF.filter_one(EmojiPolicy, @emoji_react_data_unicode)
+    end
+  end
+
+  describe "remove_shortcode" do
+    setup do
+      clear_config([:mrf_emoji, :remove_shortcode], [
+        "test",
+        ~r{mikoto_s},
+        "nekomimi_girl_emoji"
+      ])
+
+      :ok
+    end
+
+    test "processes user" do
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, @user_data)
+
+      expected_tags = [@emoji_tags |> Enum.at(2)] ++ @misc_tags
+
+      assert %{"tag" => ^expected_tags} = filtered
+    end
+
+    test "processes status" do
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, @status_data)
+
+      expected_tags = [@emoji_tags |> Enum.at(2)] ++ @misc_tags
+
+      expected_emoji = %{
+        "nekomimi_girl_emoji_007" =>
+          "https://example.org/emoji/nekomimi_girl_emoji/nekomimi_girl_emoji_007.png"
+      }
+
+      assert %{"object" => %{"tag" => ^expected_tags, "emoji" => ^expected_emoji}} = filtered
+    end
+
+    test "processes status with history" do
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, @status_data_with_history)
+
+      expected_tags = [@emoji_tags |> Enum.at(2)] ++ @misc_tags
+
+      expected_emoji = %{
+        "nekomimi_girl_emoji_007" =>
+          "https://example.org/emoji/nekomimi_girl_emoji/nekomimi_girl_emoji_007.png"
+      }
+
+      assert %{
+               "object" => %{
+                 "tag" => ^expected_tags,
+                 "emoji" => ^expected_emoji,
+                 "formerRepresentations" => %{"orderedItems" => [item]}
+               }
+             } = filtered
+
+      assert %{"tag" => ^expected_tags, "emoji" => ^expected_emoji} = item
+    end
+
+    test "processes updates" do
+      {:ok, filtered} =
+        MRF.filter_one(EmojiPolicy, @status_data_with_history |> Map.put("type", "Update"))
+
+      expected_tags = [@emoji_tags |> Enum.at(2)] ++ @misc_tags
+
+      expected_emoji = %{
+        "nekomimi_girl_emoji_007" =>
+          "https://example.org/emoji/nekomimi_girl_emoji/nekomimi_girl_emoji_007.png"
+      }
+
+      assert %{
+               "object" => %{
+                 "tag" => ^expected_tags,
+                 "emoji" => ^expected_emoji,
+                 "formerRepresentations" => %{"orderedItems" => [item]}
+               }
+             } = filtered
+
+      assert %{"tag" => ^expected_tags, "emoji" => ^expected_emoji} = item
+    end
+
+    test "processes EmojiReact" do
+      assert {:reject, "[EmojiPolicy] Rejected for having disallowed emoji"} ==
+               MRF.filter_one(EmojiPolicy, @emoji_react_data)
+
+      assert {:reject, "[EmojiPolicy] Rejected for having disallowed emoji"} ==
+               MRF.filter_one(EmojiPolicy, @emoji_react_data_matching_regex)
+
+      assert {:ok, @emoji_react_data_matching_nothing} ==
+               MRF.filter_one(EmojiPolicy, @emoji_react_data_matching_nothing)
+
+      assert {:ok, @emoji_react_data_unicode} ==
+               MRF.filter_one(EmojiPolicy, @emoji_react_data_unicode)
+    end
+  end
+
+  describe "federated_timeline_removal_url" do
+    setup do
+      clear_config([:mrf_emoji, :federated_timeline_removal_url], [
+        "https://example.org/test.png",
+        ~r{/biribiri/mikoto_smile[23]\.png},
+        "nekomimi_girl_emoji"
+      ])
+
+      :ok
+    end
+
+    test "processes status" do
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, @status_data)
+
+      expected_tags = @status_data["object"]["tag"]
+      expected_emoji = @status_data["object"]["emoji"]
+
+      expected_to = ["https://example.org/self"]
+      expected_cc = [Pleroma.Constants.as_public(), "https://example.org/someone"]
+
+      assert %{
+               "to" => ^expected_to,
+               "cc" => ^expected_cc,
+               "object" => %{"tag" => ^expected_tags, "emoji" => ^expected_emoji}
+             } = filtered
+    end
+
+    test "ignore updates" do
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, @status_data |> Map.put("type", "Update"))
+
+      expected_tags = @status_data["object"]["tag"]
+      expected_emoji = @status_data["object"]["emoji"]
+
+      expected_to = ["https://example.org/self", Pleroma.Constants.as_public()]
+      expected_cc = ["https://example.org/someone"]
+
+      assert %{
+               "to" => ^expected_to,
+               "cc" => ^expected_cc,
+               "object" => %{"tag" => ^expected_tags, "emoji" => ^expected_emoji}
+             } = filtered
+    end
+
+    test "processes status with history" do
+      status =
+        @status_data_with_history
+        |> put_in(["object", "tag"], @misc_tags)
+        |> put_in(["object", "emoji"], %{})
+
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, status)
+
+      expected_tags = @status_data["object"]["tag"]
+      expected_emoji = @status_data["object"]["emoji"]
+
+      expected_to = ["https://example.org/self"]
+      expected_cc = [Pleroma.Constants.as_public(), "https://example.org/someone"]
+
+      assert %{
+               "to" => ^expected_to,
+               "cc" => ^expected_cc,
+               "object" => %{
+                 "formerRepresentations" => %{
+                   "orderedItems" => [%{"tag" => ^expected_tags, "emoji" => ^expected_emoji}]
+                 }
+               }
+             } = filtered
+    end
+  end
+
+  describe "edge cases" do
+    setup do
+      clear_config([:mrf_emoji, :remove_url], [
+        "https://example.org/test.png",
+        ~r{/biribiri/mikoto_smile[23]\.png},
+        "nekomimi_girl_emoji"
+      ])
+
+      :ok
+    end
+
+    test "non-statuses" do
+      answer = @status_data |> put_in(["object", "type"], "Answer")
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, answer)
+
+      assert filtered == answer
+    end
+
+    test "without tag" do
+      status = @status_data |> Map.put("object", Map.drop(@status_data["object"], ["tag"]))
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, status)
+
+      refute Map.has_key?(filtered["object"], "tag")
+    end
+
+    test "without emoji" do
+      status = @status_data |> Map.put("object", Map.drop(@status_data["object"], ["emoji"]))
+      {:ok, filtered} = MRF.filter_one(EmojiPolicy, status)
+
+      refute Map.has_key?(filtered["object"], "emoji")
+    end
+  end
+end
diff --git a/test/pleroma/web/activity_pub/mrf/ensure_re_prepended_test.exs b/test/pleroma/web/activity_pub/mrf/ensure_re_prepended_test.exs
index 859e6f1..5afab0c 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/ensure_re_prepended_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/ensure_re_prepended_test.exs
@@ -24,7 +24,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.EnsureRePrependedTest do
       assert res["object"]["summary"] == "re: object-summary"
     end
 
-    test "it adds `re:` to summary object when child summary containts re-subject of parent summary " do
+    test "it adds `re:` to summary object when child summary contains re-subject of parent summary " do
       message = %{
         "type" => "Create",
         "object" => %{
diff --git a/test/pleroma/web/activity_pub/mrf/follow_bot_policy_test.exs b/test/pleroma/web/activity_pub/mrf/follow_bot_policy_test.exs
index 2481900..a70e3c1 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/follow_bot_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/follow_bot_policy_test.exs
@@ -3,7 +3,7 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.FollowBotPolicyTest do
-  use Pleroma.DataCase, async: true
+  use Pleroma.DataCase
 
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.MRF.FollowBotPolicy
diff --git a/test/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy_test.exs b/test/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy_test.exs
index d1e9001..d1e9001 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/force_mention_test.exs b/test/pleroma/web/activity_pub/mrf/force_mention_test.exs
new file mode 100644
index 0000000..b026bab
--- /dev/null
+++ b/test/pleroma/web/activity_pub/mrf/force_mention_test.exs
@@ -0,0 +1,73 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2024 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.ForceMentionTest do
+  use Pleroma.DataCase
+  require Pleroma.Constants
+
+  alias Pleroma.Web.ActivityPub.MRF.ForceMention
+
+  import Pleroma.Factory
+
+  test "adds mention to a reply" do
+    lain =
+      insert(:user, ap_id: "https://lain.com/users/lain", nickname: "lain@lain.com", local: false)
+
+    niobleoum =
+      insert(:user,
+        ap_id: "https://www.minds.com/api/activitypub/users/1198929502760083472",
+        nickname: "niobleoum@minds.com",
+        local: false
+      )
+
+    status = File.read!("test/fixtures/minds-pleroma-mentioned-post.json") |> Jason.decode!()
+
+    status_activity = %{
+      "type" => "Create",
+      "actor" => lain.ap_id,
+      "object" => status
+    }
+
+    Pleroma.Web.ActivityPub.Transmogrifier.handle_incoming(status_activity)
+
+    reply = File.read!("test/fixtures/minds-invalid-mention-post.json") |> Jason.decode!()
+
+    reply_activity = %{
+      "type" => "Create",
+      "actor" => niobleoum.ap_id,
+      "object" => reply
+    }
+
+    {:ok, %{"object" => %{"tag" => tag}}} = ForceMention.filter(reply_activity)
+
+    assert Enum.find(tag, fn %{"href" => href} -> href == lain.ap_id end)
+  end
+
+  test "adds mention to a quote" do
+    user1 = insert(:user, ap_id: "https://misskey.io/users/83ssedkv53")
+    user2 = insert(:user, ap_id: "https://misskey.io/users/7rkrarq81i")
+
+    status = File.read!("test/fixtures/tesla_mock/misskey.io_8vs6wxufd0.json") |> Jason.decode!()
+
+    status_activity = %{
+      "type" => "Create",
+      "actor" => user1.ap_id,
+      "object" => status
+    }
+
+    Pleroma.Web.ActivityPub.Transmogrifier.handle_incoming(status_activity)
+
+    quote_post = File.read!("test/fixtures/quote_post/misskey_quote_post.json") |> Jason.decode!()
+
+    quote_activity = %{
+      "type" => "Create",
+      "actor" => user2.ap_id,
+      "object" => quote_post
+    }
+
+    {:ok, %{"object" => %{"tag" => tag}}} = ForceMention.filter(quote_activity)
+
+    assert Enum.find(tag, fn %{"href" => href} -> href == user1.ap_id end)
+  end
+end
diff --git a/test/pleroma/web/activity_pub/mrf/force_mentions_in_content_test.exs b/test/pleroma/web/activity_pub/mrf/force_mentions_in_content_test.exs
index b349a4b..811ef10 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/force_mentions_in_content_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/force_mentions_in_content_test.exs
@@ -256,4 +256,55 @@ defmodule Pleroma.Web.ActivityPub.MRF.ForceMentionsInContentTest do
               }
             }} = MRF.filter_one(ForceMentionsInContent, activity)
   end
+
+  test "don't add duplicate mentions for mastodon or misskey posts" do
+    [zero, rogerick, greg] = [
+      insert(:user,
+        ap_id: "https://pleroma.example.com/users/zero",
+        uri: "https://pleroma.example.com/users/zero",
+        nickname: "zero@pleroma.example.com",
+        local: false
+      ),
+      insert(:user,
+        ap_id: "https://misskey.example.com/users/104ab42f11",
+        uri: "https://misskey.example.com/@rogerick",
+        nickname: "rogerick@misskey.example.com",
+        local: false
+      ),
+      insert(:user,
+        ap_id: "https://mastodon.example.com/users/greg",
+        uri: "https://mastodon.example.com/@greg",
+        nickname: "greg@mastodon.example.com",
+        local: false
+      )
+    ]
+
+    {:ok, post} = CommonAPI.post(rogerick, %{status: "eugh"})
+
+    inline_mentions = [
+      "<span class=\"h-card\"><a class=\"u-url mention\" data-user=\"#{rogerick.id}\" href=\"#{rogerick.ap_id}\" rel=\"ugc\">@<span>rogerick</span></a></span>",
+      "<span class=\"h-card\"><a class=\"u-url mention\" data-user=\"#{greg.id}\" href=\"#{greg.uri}\" rel=\"ugc\">@<span>greg</span></a></span>"
+    ]
+
+    activity = %{
+      "type" => "Create",
+      "actor" => zero.ap_id,
+      "object" => %{
+        "type" => "Note",
+        "actor" => zero.ap_id,
+        "content" => "#{Enum.at(inline_mentions, 0)} #{Enum.at(inline_mentions, 1)} erm",
+        "to" => [
+          rogerick.ap_id,
+          greg.ap_id,
+          Constants.as_public()
+        ],
+        "inReplyTo" => Object.normalize(post).data["id"]
+      }
+    }
+
+    {:ok, %{"object" => %{"content" => filtered}}} = ForceMentionsInContent.filter(activity)
+
+    assert filtered ==
+             "#{Enum.at(inline_mentions, 0)} #{Enum.at(inline_mentions, 1)} erm"
+  end
 end
diff --git a/test/pleroma/web/activity_pub/mrf/hashtag_policy_test.exs b/test/pleroma/web/activity_pub/mrf/hashtag_policy_test.exs
index 32991c9..32991c9 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/hashtag_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/hashtag_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/hellthread_policy_test.exs b/test/pleroma/web/activity_pub/mrf/hellthread_policy_test.exs
index 3ab7230..3ab7230 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/hellthread_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/hellthread_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/inline_quote_policy_test.exs b/test/pleroma/web/activity_pub/mrf/inline_quote_policy_test.exs
new file mode 100644
index 0000000..d576276
--- /dev/null
+++ b/test/pleroma/web/activity_pub/mrf/inline_quote_policy_test.exs
@@ -0,0 +1,112 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.InlineQuotePolicyTest do
+  alias Pleroma.Web.ActivityPub.MRF.InlineQuotePolicy
+  use Pleroma.DataCase
+
+  test "adds quote URL to post content" do
+    quote_url = "https://gleasonator.com/objects/1234"
+
+    activity = %{
+      "type" => "Create",
+      "actor" => "https://gleasonator.com/users/alex",
+      "object" => %{
+        "type" => "Note",
+        "content" => "Nice post",
+        "quoteUrl" => quote_url
+      }
+    }
+
+    {:ok, %{"object" => %{"content" => filtered}}} = InlineQuotePolicy.filter(activity)
+
+    assert filtered ==
+             "Nice post<span class=\"quote-inline\"><br/><br/><bdi>RT:</bdi> <a href=\"https://gleasonator.com/objects/1234\">https://gleasonator.com/objects/1234</a></span>"
+  end
+
+  test "adds quote URL to post content, custom template" do
+    clear_config([:mrf_inline_quote, :template], "{url}'s quoting")
+    quote_url = "https://gleasonator.com/objects/1234"
+
+    activity = %{
+      "type" => "Create",
+      "actor" => "https://gleasonator.com/users/alex",
+      "object" => %{
+        "type" => "Note",
+        "content" => "Nice post",
+        "quoteUrl" => quote_url
+      }
+    }
+
+    {:ok, %{"object" => %{"content" => filtered}}} = InlineQuotePolicy.filter(activity)
+
+    assert filtered ==
+             "Nice post<span class=\"quote-inline\"><br/><br/><a href=\"https://gleasonator.com/objects/1234\">https://gleasonator.com/objects/1234</a>'s quoting</span>"
+  end
+
+  test "doesn't add line breaks to markdown posts" do
+    quote_url = "https://gleasonator.com/objects/1234"
+
+    activity = %{
+      "type" => "Create",
+      "actor" => "https://gleasonator.com/users/alex",
+      "object" => %{
+        "type" => "Note",
+        "content" => "<p>Nice post</p>",
+        "quoteUrl" => quote_url
+      }
+    }
+
+    {:ok, %{"object" => %{"content" => filtered}}} = InlineQuotePolicy.filter(activity)
+
+    assert filtered ==
+             "<p>Nice post<span class=\"quote-inline\"><br/><br/><bdi>RT:</bdi> <a href=\"https://gleasonator.com/objects/1234\">https://gleasonator.com/objects/1234</a></span></p>"
+  end
+
+  test "ignores Misskey quote posts" do
+    object = File.read!("test/fixtures/quote_post/misskey_quote_post.json") |> Jason.decode!()
+
+    activity = %{
+      "type" => "Create",
+      "actor" => "https://misskey.io/users/7rkrarq81i",
+      "object" => object
+    }
+
+    {:ok, filtered} = InlineQuotePolicy.filter(activity)
+    assert filtered == activity
+  end
+
+  test "ignores Fedibird quote posts" do
+    object = File.read!("test/fixtures/quote_post/fedibird_quote_post.json") |> Jason.decode!()
+
+    # Normally the ObjectValidator will fix this before it reaches MRF
+    object = Map.put(object, "quoteUrl", object["quoteURL"])
+
+    activity = %{
+      "type" => "Create",
+      "actor" => "https://fedibird.com/users/noellabo",
+      "object" => object
+    }
+
+    {:ok, filtered} = InlineQuotePolicy.filter(activity)
+    assert filtered == activity
+  end
+
+  test "skips objects which already have an .inline-quote span" do
+    object =
+      File.read!("test/fixtures/quote_post/fedibird_quote_mismatched.json") |> Jason.decode!()
+
+    # Normally the ObjectValidator will fix this before it reaches MRF
+    object = Map.put(object, "quoteUrl", object["quoteUri"])
+
+    activity = %{
+      "type" => "Create",
+      "actor" => "https://fedibird.com/users/noellabo",
+      "object" => object
+    }
+
+    {:ok, filtered} = InlineQuotePolicy.filter(activity)
+    assert filtered == activity
+  end
+end
diff --git a/test/pleroma/web/activity_pub/mrf/keyword_policy_test.exs b/test/pleroma/web/activity_pub/mrf/keyword_policy_test.exs
index a0e77d7..a0e77d7 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/keyword_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/keyword_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/media_proxy_warming_policy_test.exs b/test/pleroma/web/activity_pub/mrf/media_proxy_warming_policy_test.exs
index 6557c3a..0da3afa 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/media_proxy_warming_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/media_proxy_warming_policy_test.exs
@@ -7,10 +7,12 @@ defmodule Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicyTest do
   use Pleroma.Tests.Helpers
 
   alias Pleroma.HTTP
+  alias Pleroma.UnstubbedConfigMock, as: ConfigMock
   alias Pleroma.Web.ActivityPub.MRF
   alias Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy
 
   import Mock
+  import Mox
 
   @message %{
     "type" => "Create",
@@ -42,6 +44,13 @@ defmodule Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicyTest do
     }
   }
 
+  setup do
+    ConfigMock
+    |> stub_with(Pleroma.Test.StaticConfig)
+
+    :ok
+  end
+
   setup do: clear_config([:media_proxy, :enabled], true)
 
   test "it prefetches media proxy URIs" do
diff --git a/test/pleroma/web/activity_pub/mrf/mention_policy_test.exs b/test/pleroma/web/activity_pub/mrf/mention_policy_test.exs
index 6dcae44..6dcae44 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/mention_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/mention_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/no_empty_policy_test.exs b/test/pleroma/web/activity_pub/mrf/no_empty_policy_test.exs
index 386ed39..386ed39 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/no_empty_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/no_empty_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/no_placeholder_text_policy_test.exs b/test/pleroma/web/activity_pub/mrf/no_placeholder_text_policy_test.exs
index 3533c2b..3533c2b 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/no_placeholder_text_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/no_placeholder_text_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/normalize_markup_test.exs b/test/pleroma/web/activity_pub/mrf/normalize_markup_test.exs
index 66a8f4e..66a8f4e 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/normalize_markup_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/normalize_markup_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/object_age_policy_test.exs b/test/pleroma/web/activity_pub/mrf/object_age_policy_test.exs
index 7a67645..7a67645 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/object_age_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/object_age_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/quote_to_link_tag_policy_test.exs b/test/pleroma/web/activity_pub/mrf/quote_to_link_tag_policy_test.exs
new file mode 100644
index 0000000..96b49b6
--- /dev/null
+++ b/test/pleroma/web/activity_pub/mrf/quote_to_link_tag_policy_test.exs
@@ -0,0 +1,73 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2023 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.QuoteToLinkTagPolicyTest do
+  alias Pleroma.Web.ActivityPub.MRF.QuoteToLinkTagPolicy
+
+  use Pleroma.DataCase
+
+  require Pleroma.Constants
+
+  test "Add quote url to Link tag" do
+    quote_url = "https://gleasonator.com/objects/1234"
+
+    activity = %{
+      "type" => "Create",
+      "actor" => "https://gleasonator.com/users/alex",
+      "object" => %{
+        "type" => "Note",
+        "content" => "Nice post",
+        "quoteUrl" => quote_url
+      }
+    }
+
+    {:ok, %{"object" => object}} = QuoteToLinkTagPolicy.filter(activity)
+
+    assert object["tag"] == [
+             %{
+               "type" => "Link",
+               "href" => quote_url,
+               "mediaType" => Pleroma.Constants.activity_json_canonical_mime_type()
+             }
+           ]
+  end
+
+  test "Add quote url to Link tag, append to the end" do
+    quote_url = "https://gleasonator.com/objects/1234"
+
+    activity = %{
+      "type" => "Create",
+      "actor" => "https://gleasonator.com/users/alex",
+      "object" => %{
+        "type" => "Note",
+        "content" => "Nice post",
+        "quoteUrl" => quote_url,
+        "tag" => [%{"type" => "Hashtag", "name" => "#foo"}]
+      }
+    }
+
+    {:ok, %{"object" => object}} = QuoteToLinkTagPolicy.filter(activity)
+
+    assert [_, tag] = object["tag"]
+
+    assert tag == %{
+             "type" => "Link",
+             "href" => quote_url,
+             "mediaType" => Pleroma.Constants.activity_json_canonical_mime_type()
+           }
+  end
+
+  test "Bypass posts without quoteUrl" do
+    activity = %{
+      "type" => "Create",
+      "actor" => "https://gleasonator.com/users/alex",
+      "object" => %{
+        "type" => "Note",
+        "content" => "Nice post"
+      }
+    }
+
+    assert {:ok, ^activity} = QuoteToLinkTagPolicy.filter(activity)
+  end
+end
diff --git a/test/pleroma/web/activity_pub/mrf/reject_non_public_test.exs b/test/pleroma/web/activity_pub/mrf/reject_non_public_test.exs
index 0ad60a3..0ad60a3 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/reject_non_public_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/reject_non_public_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/simple_policy_test.exs b/test/pleroma/web/activity_pub/mrf/simple_policy_test.exs
index 57fc00a..57fc00a 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/simple_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/simple_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/steal_emoji_policy_test.exs b/test/pleroma/web/activity_pub/mrf/steal_emoji_policy_test.exs
index 89d3235..2c7497d 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/steal_emoji_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/steal_emoji_policy_test.exs
@@ -60,6 +60,59 @@ defmodule Pleroma.Web.ActivityPub.MRF.StealEmojiPolicyTest do
            |> File.exists?()
   end
 
+  test "works with unknown extension", %{path: path} do
+    message = %{
+      "type" => "Create",
+      "object" => %{
+        "emoji" => [{"firedfox", "https://example.org/emoji/firedfox"}],
+        "actor" => "https://example.org/users/admin"
+      }
+    }
+
+    fullpath = Path.join(path, "firedfox.png")
+
+    Tesla.Mock.mock(fn %{method: :get, url: "https://example.org/emoji/firedfox"} ->
+      %Tesla.Env{status: 200, body: File.read!("test/fixtures/image.jpg")}
+    end)
+
+    clear_config(:mrf_steal_emoji, hosts: ["example.org"], size_limit: 284_468)
+
+    refute "firedfox" in installed()
+    refute File.exists?(path)
+
+    assert {:ok, _message} = StealEmojiPolicy.filter(message)
+
+    assert "firedfox" in installed()
+    assert File.exists?(path)
+    assert File.exists?(fullpath)
+  end
+
+  test "rejects invalid shortcodes", %{path: path} do
+    message = %{
+      "type" => "Create",
+      "object" => %{
+        "emoji" => [{"fired/fox", "https://example.org/emoji/firedfox"}],
+        "actor" => "https://example.org/users/admin"
+      }
+    }
+
+    fullpath = Path.join(path, "fired/fox.png")
+
+    Tesla.Mock.mock(fn %{method: :get, url: "https://example.org/emoji/firedfox"} ->
+      %Tesla.Env{status: 200, body: File.read!("test/fixtures/image.jpg")}
+    end)
+
+    clear_config(:mrf_steal_emoji, hosts: ["example.org"], size_limit: 284_468)
+
+    refute "firedfox" in installed()
+    refute File.exists?(path)
+
+    assert {:ok, _message} = StealEmojiPolicy.filter(message)
+
+    refute "fired/fox" in installed()
+    refute File.exists?(fullpath)
+  end
+
   test "reject regex shortcode", %{message: message} do
     refute "firedfox" in installed()
 
diff --git a/test/pleroma/web/activity_pub/mrf/subchain_policy_test.exs b/test/pleroma/web/activity_pub/mrf/subchain_policy_test.exs
index 8cbeef9..8cbeef9 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/subchain_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/subchain_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/tag_policy_test.exs b/test/pleroma/web/activity_pub/mrf/tag_policy_test.exs
index a0db8df..a0db8df 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/tag_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/tag_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/user_allow_list_policy_test.exs b/test/pleroma/web/activity_pub/mrf/user_allow_list_policy_test.exs
index d02af3b..d02af3b 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/user_allow_list_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/user_allow_list_policy_test.exs
diff --git a/test/pleroma/web/activity_pub/mrf/utils_test.exs b/test/pleroma/web/activity_pub/mrf/utils_test.exs
new file mode 100644
index 0000000..3bbc2cf
--- /dev/null
+++ b/test/pleroma/web/activity_pub/mrf/utils_test.exs
@@ -0,0 +1,19 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2023 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.UtilsTest do
+  use Pleroma.DataCase, async: true
+
+  alias Pleroma.Web.ActivityPub.MRF.Utils
+
+  describe "describe_regex_or_string/1" do
+    test "describes regex" do
+      assert "~r/foo/i" == Utils.describe_regex_or_string(~r/foo/i)
+    end
+
+    test "returns string as-is" do
+      assert "foo" == Utils.describe_regex_or_string("foo")
+    end
+  end
+end
diff --git a/test/pleroma/web/activity_pub/mrf/vocabulary_policy_test.exs b/test/pleroma/web/activity_pub/mrf/vocabulary_policy_test.exs
index 68c18cf..68c18cf 100755..100644
--- a/test/pleroma/web/activity_pub/mrf/vocabulary_policy_test.exs
+++ b/test/pleroma/web/activity_pub/mrf/vocabulary_policy_test.exs