6 files changed, 50 insertions, 5 deletions
diff --git a/lib/pleroma/html.ex b/lib/pleroma/html.ex
index f5c6e5033..fb602d6b6 100644
--- a/lib/pleroma/html.ex
+++ b/lib/pleroma/html.ex
@@ -58,6 +58,20 @@ defmodule Pleroma.HTML do
       "#{signature}#{to_string(scrubber)}"
     end)
   end
+
+  def extract_first_external_url(object, content) do
+    key = "URL|#{object.id}"
+
+    Cachex.fetch!(:scrubber_cache, key, fn _key ->
+      result =
+        content
+        |> Floki.filter_out("a.mention")
+        |> Floki.attribute("a", "href")
+        |> Enum.at(0)
+
+      {:commit, result}
+    end)
+  end
 end
 
 defmodule Pleroma.HTML.Scrubber.TwitterText do
diff --git a/lib/pleroma/notification.ex b/lib/pleroma/notification.ex
index e47145601..2364d36da 100644
--- a/lib/pleroma/notification.ex
+++ b/lib/pleroma/notification.ex
@@ -35,7 +35,8 @@ defmodule Pleroma.Notification do
         n in Notification,
         where: n.user_id == ^user.id,
         order_by: [desc: n.id],
-        preload: [:activity],
+        join: activity in assoc(n, :activity),
+        preload: [activity: activity],
         limit: 20
       )
 
@@ -66,7 +67,8 @@ defmodule Pleroma.Notification do
       from(
         n in Notification,
         where: n.id == ^id,
-        preload: [:activity]
+        join: activity in assoc(n, :activity),
+        preload: [activity: activity]
       )
 
     notification = Repo.one(query)
diff --git a/lib/pleroma/plugs/oauth_plug.ex b/lib/pleroma/plugs/oauth_plug.ex
index 437aa95b3..945a1d49f 100644
--- a/lib/pleroma/plugs/oauth_plug.ex
+++ b/lib/pleroma/plugs/oauth_plug.ex
@@ -33,7 +33,12 @@ defmodule Pleroma.Plugs.OAuthPlug do
   #
   @spec fetch_user_and_token(String.t()) :: {:ok, User.t(), Token.t()} | nil
   defp fetch_user_and_token(token) do
-    query = from(q in Token, where: q.token == ^token, preload: [:user])
+    query =
+      from(t in Token,
+        where: t.token == ^token,
+        join: user in assoc(t, :user),
+        preload: [user: user]
+      )
 
     with %Token{user: %{info: %{deactivated: false} = _} = user} = token_record <- Repo.one(query) do
       {:ok, user, token_record}
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 6b4682e35..07779fa00 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -64,7 +64,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
-  defp check_remote_limit(%{"object" => %{"content" => content}}) do
+  defp check_remote_limit(%{"object" => %{"content" => content}}) when not is_nil(content) do
     limit = Pleroma.Config.get([:instance, :remote_limit])
     String.length(content) <= limit
   end
diff --git a/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex b/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
index f4736fcb5..a60532b55 100644
--- a/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
+++ b/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
@@ -6,6 +6,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   use Pleroma.Web, :controller
   alias Pleroma.{Repo, Object, Activity, User, Notification, Stats}
   alias Pleroma.Web
+  alias Pleroma.HTML
 
   alias Pleroma.Web.MastodonAPI.{
     StatusView,
@@ -1322,6 +1323,29 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     end
   end
 
+  def get_status_card(status_id) do
+    with %Activity{} = activity <- Repo.get(Activity, status_id),
+         true <- ActivityPub.is_public?(activity),
+         %Object{} = object <- Object.normalize(activity.data["object"]),
+         page_url <- HTML.extract_first_external_url(object, object.data["content"]),
+         {:ok, rich_media} <- Pleroma.Web.RichMedia.Parser.parse(page_url) do
+      page_url = rich_media[:url] || page_url
+      site_name = rich_media[:site_name] || URI.parse(page_url).host
+
+      rich_media
+      |> Map.take([:image, :title, :description])
+      |> Map.put(:type, "link")
+      |> Map.put(:provider_name, site_name)
+      |> Map.put(:url, page_url)
+    else
+      _ -> %{}
+    end
+  end
+
+  def status_card(conn, %{"id" => status_id}) do
+    json(conn, get_status_card(status_id))
+  end
+
   def try_render(conn, target, params)
       when is_binary(target) do
     res = render(conn, target, params)
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index b83790858..e749aa834 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -258,7 +258,7 @@ defmodule Pleroma.Web.Router do
 
     get("/statuses/:id", MastodonAPIController, :get_status)
     get("/statuses/:id/context", MastodonAPIController, :get_context)
-    get("/statuses/:id/card", MastodonAPIController, :empty_object)
+    get("/statuses/:id/card", MastodonAPIController, :status_card)
     get("/statuses/:id/favourited_by", MastodonAPIController, :favourited_by)
     get("/statuses/:id/reblogged_by", MastodonAPIController, :reblogged_by)