Add support for actor icon being a list (Bridgy)

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -1250,21 +1250,17 @@ defp get_actor_url(url) when is_list(url) do
 
   defp get_actor_url(_url), do: nil
 
+  defp normalize_image(%{"url" => url}) do
+    %{
+      "type" => "Image",
+      "url" => [%{"href" => url}]
+    }
+  end
+
+  defp normalize_image(urls) when is_list(urls), do: urls |> List.first() |> normalize_image()
+  defp normalize_image(_), do: nil
+
   defp object_to_user_data(data) do
-    avatar =
-      data["icon"]["url"] &&
-        %{
-          "type" => "Image",
-          "url" => [%{"href" => data["icon"]["url"]}]
-        }
-
-    banner =
-      data["image"]["url"] &&
-        %{
-          "type" => "Image",
-          "url" => [%{"href" => data["image"]["url"]}]
-        }
-
     fields =
       data
       |> Map.get("attachment", [])
@@ -1308,13 +1304,13 @@ defp object_to_user_data(data) do
       ap_id: data["id"],
       uri: get_actor_url(data["url"]),
       ap_enabled: true,
-      banner: banner,
+      banner: normalize_image(data["image"]),
       fields: fields,
       emoji: emojis,
       is_locked: is_locked,
       is_discoverable: is_discoverable,
       invisible: invisible,
-      avatar: avatar,
+      avatar: normalize_image(data["icon"]),
       name: data["name"],
       follower_address: data["followers"],
       following_address: data["following"],

test/fixtures/bridgy/actor.json

@@ -0,0 +1,80 @@
+{
+  "id": "https://fed.brid.gy/jk.nipponalba.scot",
+  "url": "https://fed.brid.gy/r/https://jk.nipponalba.scot",
+  "urls": [
+    {
+      "value": "https://jk.nipponalba.scot"
+    },
+    {
+      "value": "https://social.nipponalba.scot/jk"
+    },
+    {
+      "value": "https://px.nipponalba.scot/jk"
+    }
+  ],
+  "@context": "https://www.w3.org/ns/activitystreams",
+  "type": "Person",
+  "name": "J K 🇯🇵🏴󠁧󠁢󠁳󠁣󠁴󠁿",
+  "image": [
+    {
+      "url": "https://jk.nipponalba.scot/images/profile.jpg",
+      "type": "Image",
+      "name": "profile picture"
+    }
+  ],
+  "tag": [
+    {
+      "type": "Tag",
+      "name": "Craft Beer"
+    },
+    {
+      "type": "Tag",
+      "name": "Single Malt Whisky"
+    },
+    {
+      "type": "Tag",
+      "name": "Homebrewing"
+    },
+    {
+      "type": "Tag",
+      "name": "Scottish Politics"
+    },
+    {
+      "type": "Tag",
+      "name": "Scottish History"
+    },
+    {
+      "type": "Tag",
+      "name": "Japanese History"
+    },
+    {
+      "type": "Tag",
+      "name": "Tech"
+    },
+    {
+      "type": "Tag",
+      "name": "Veganism"
+    },
+    {
+      "type": "Tag",
+      "name": "Cooking"
+    }
+  ],
+  "icon": [
+    {
+      "url": "https://jk.nipponalba.scot/images/profile.jpg",
+      "type": "Image",
+      "name": "profile picture"
+    }
+  ],
+  "preferredUsername": "jk.nipponalba.scot",
+  "summary": "",
+  "publicKey": {
+    "id": "jk.nipponalba.scot",
+    "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDdarxwzxnNbJ2hneWOYHkYJowk\npyigQtxlUd0VjgSQHwxU9kWqfbrHBVADyTtcqi/4dAzQd3UnCI1TPNnn4LPZY9PW\noiWd3Zl1/EfLFxO7LU9GS7fcSLQkyj5JNhSlN3I8QPudZbybrgRDVZYooDe1D+52\n5KLGqC2ajrIVOiDRTQIDAQAB\n-----END PUBLIC KEY-----"
+  },
+  "inbox": "https://fed.brid.gy/jk.nipponalba.scot/inbox",
+  "outbox": "https://fed.brid.gy/jk.nipponalba.scot/outbox",
+  "following": "https://fed.brid.gy/jk.nipponalba.scot/following",
+  "followers": "https://fed.brid.gy/jk.nipponalba.scot/followers"
+}

test/pleroma/web/activity_pub/activity_pub_test.exs

@@ -208,6 +208,33 @@ test "works for guppe actors" do
       assert user.name == "Bernie2020 group"
       assert user.actor_type == "Group"
     end
+
+    test "works for bridgy actors" do
+      user_id = "https://fed.brid.gy/jk.nipponalba.scot"
+
+      Tesla.Mock.mock(fn
+        %{method: :get, url: ^user_id} ->
+          %Tesla.Env{
+            status: 200,
+            body: File.read!("test/fixtures/bridgy/actor.json"),
+            headers: [{"content-type", "application/activity+json"}]
+          }
+      end)
+
+      {:ok, user} = ActivityPub.make_user_from_ap_id(user_id)
+
+      assert user.actor_type == "Person"
+
+      assert user.avatar == %{
+               "type" => "Image",
+               "url" => [%{"href" => "https://jk.nipponalba.scot/images/profile.jpg"}]
+             }
+
+      assert user.banner == %{
+               "type" => "Image",
+               "url" => [%{"href" => "https://jk.nipponalba.scot/images/profile.jpg"}]
+             }
+    end
   end
 
   test "it fetches the appropriate tag-restricted posts" do