Transmogrifier: Also accept mitra emoji likes.

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -495,12 +495,23 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   defp handle_incoming_normalized(
          %{
            "type" => "Like",
-           "_misskey_reaction" => reaction
+           "content" => _
          } = data,
          options
        ) do
     data
     |> Map.put("type", "EmojiReact")
+    |> handle_incoming_normalized(options)
+  end
+
+  defp handle_incoming_normalized(
+         %{
+           "type" => "Like",
+           "_misskey_reaction" => reaction
+         } = data,
+         options
+       ) do
+    data
     |> Map.put("content", @misskey_reactions[reaction] || reaction)
     |> handle_incoming_normalized(options)
   end

test/fixtures/misskey-custom-emoji-like.json

@@ -0,0 +1,54 @@
+ {
+  "@context": [
+    "https://www.w3.org/ns/activitystreams",
+    "https://w3id.org/security/v1",
+    {
+      "Emoji": "toot:Emoji",
+      "Hashtag": "as:Hashtag",
+      "PropertyValue": "schema:PropertyValue",
+      "_misskey_content": "misskey:_misskey_content",
+      "_misskey_quote": "misskey:_misskey_quote",
+      "_misskey_reaction": "misskey:_misskey_reaction",
+      "_misskey_summary": "misskey:_misskey_summary",
+      "_misskey_votes": "misskey:_misskey_votes",
+      "backgroundUrl": "sharkey:backgroundUrl",
+      "discoverable": "toot:discoverable",
+      "featured": "toot:featured",
+      "fedibird": "http://fedibird.com/ns#",
+      "firefish": "https://joinfirefish.org/ns#",
+      "isCat": "misskey:isCat",
+      "listenbrainz": "sharkey:listenbrainz",
+      "manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
+      "misskey": "https://misskey-hub.net/ns#",
+      "quoteUri": "fedibird:quoteUri",
+      "quoteUrl": "as:quoteUrl",
+      "schema": "http://schema.org#",
+      "sensitive": "as:sensitive",
+      "sharkey": "https://joinsharkey.org/ns#",
+      "speakAsCat": "firefish:speakAsCat",
+      "toot": "http://joinmastodon.org/ns#",
+      "value": "schema:value",
+      "vcard": "http://www.w3.org/2006/vcard/ns#"
+    }
+  ],
+  "_misskey_reaction": ":blobwtfnotlikethis:",
+  "actor": "https://mai.waifuism.life/users/9otxaeemjqy70001",
+  "content": ":blobwtfnotlikethis:",
+  "id": "https://mai.waifuism.life/likes/9q2xifhrdnb0001b",
+  "object": "https://bungle.online/notes/9q2xi2sy4k",
+  "tag": [
+    {
+      "icon": {
+        "mediaType": "image/png",
+        "type": "Image",
+        "url": "https://mai.waifuism.life/files/1b0510f2-1fb4-43f5-a399-10053bbd8f0f"
+      },
+      "id": "https://mai.waifuism.life/emojis/blobwtfnotlikethis",
+      "name": ":blobwtfnotlikethis:",
+      "type": "Emoji",
+      "updated": "2024-02-07T02:21:46.497Z"
+    }
+  ],
+  "type": "Like"
+}
+

test/fixtures/mitra-custom-emoji-like.json

@@ -0,0 +1,46 @@
+{
+  "@context": [
+    "https://www.w3.org/ns/activitystreams",
+    "https://w3id.org/security/v1",
+    "https://w3id.org/security/data-integrity/v1",
+    {
+      "Emoji": "toot:Emoji",
+      "Hashtag": "as:Hashtag",
+      "sensitive": "as:sensitive",
+      "toot": "http://joinmastodon.org/ns#"
+    }
+  ],
+  "actor": "https://mitra.social/users/silverpill",
+  "cc": [],
+  "content": ":ablobcatheartsqueeze:",
+  "id": "https://mitra.social/activities/like/0195a89a-a3a0-ead4-3a1c-aa6311397cfd",
+  "object": "https://framapiaf.org/users/peertube/statuses/114182703352270287",
+  "proof": {
+    "created": "2025-03-18T09:34:21.610678375Z",
+    "cryptosuite": "eddsa-jcs-2022",
+    "proofPurpose": "assertionMethod",
+    "proofValue": "z5AvpwkXQGFpTneRVDNeF48Jo9qYG6PgrE5HaPPpQNdNyc31ULMN4Vxd4aFXELo4Rk5Y9hd9nDy254xP8v5uGGWp1",
+    "type": "DataIntegrityProof",
+    "verificationMethod": "https://mitra.social/users/silverpill#ed25519-key"
+  },
+  "tag": [
+    {
+      "attributedTo": "https://mitra.social/actor",
+      "icon": {
+        "mediaType": "image/png",
+        "type": "Image",
+        "url": "https://mitra.social/media/a08e153441b25e512ab1b2e8922f5d8cd928322c8b79958cd48297ac722a4117.png"
+      },
+      "id": "https://mitra.social/objects/emojis/ablobcatheartsqueeze",
+      "name": ":ablobcatheartsqueeze:",
+      "type": "Emoji",
+      "updated": "1970-01-01T00:00:00Z"
+    }
+  ],
+  "to": [
+    "https://framapiaf.org/users/peertube",
+    "https://www.w3.org/ns/activitystreams#Public"
+  ],
+  "type": "Like"
+}
+

test/pleroma/web/activity_pub/transmogrifier/like_handling_test.exs

@@ -6,6 +6,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier.LikeHandlingTest do
   use Pleroma.DataCase, async: true
 
   alias Pleroma.Activity
+  alias Pleroma.Object
   alias Pleroma.Web.ActivityPub.Transmogrifier
   alias Pleroma.Web.CommonAPI
 
@@ -75,4 +76,54 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier.LikeHandlingTest do
     assert activity_data["object"] == activity.data["object"]
     assert activity_data["content"] == "⭐"
   end
+
+  test "it works for misskey likes with custom emoji" do
+    user = insert(:user)
+
+    {:ok, activity} = CommonAPI.post(user, %{status: "hello"})
+
+    data =
+      File.read!("test/fixtures/misskey-custom-emoji-like.json")
+      |> Jason.decode!()
+      |> Map.put("object", activity.data["object"])
+
+    _actor = insert(:user, ap_id: data["actor"], local: false)
+
+    {:ok, %Activity{data: activity_data, local: false}} = Transmogrifier.handle_incoming(data)
+
+    assert activity_data["actor"] == data["actor"]
+    assert activity_data["type"] == "EmojiReact"
+    assert activity_data["id"] == data["id"]
+    assert activity_data["object"] == activity.data["object"]
+    assert activity_data["content"] == ":blobwtfnotlikethis:"
+
+    assert [["blobwtfnotlikethis", _, _]] =
+             Object.get_by_ap_id(activity.data["object"])
+             |> Object.get_emoji_reactions()
+  end
+
+  test "it works for mitra likes with custom emoji" do
+    user = insert(:user)
+
+    {:ok, activity} = CommonAPI.post(user, %{status: "hello"})
+
+    data =
+      File.read!("test/fixtures/mitra-custom-emoji-like.json")
+      |> Jason.decode!()
+      |> Map.put("object", activity.data["object"])
+
+    _actor = insert(:user, ap_id: data["actor"], local: false)
+
+    {:ok, %Activity{data: activity_data, local: false}} = Transmogrifier.handle_incoming(data)
+
+    assert activity_data["actor"] == data["actor"]
+    assert activity_data["type"] == "EmojiReact"
+    assert activity_data["id"] == data["id"]
+    assert activity_data["object"] == activity.data["object"]
+    assert activity_data["content"] == ":ablobcatheartsqueeze:"
+
+    assert [["ablobcatheartsqueeze", _, _]] =
+             Object.get_by_ap_id(activity.data["object"])
+             |> Object.get_emoji_reactions()
+  end
 end