From 781b270863b7a3dcf49c5b52c73aa60511c91a6c Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Thu, 30 Jul 2020 19:57:26 +0200
Subject: [PATCH] ChatMessageReferenceView: Display preview cards.

---
 .../web/pleroma_api/views/chat/message_reference_view.ex  |  9 +++++++--
 lib/pleroma/web/rich_media/helpers.ex                     | 15 ++++++++++++---
 .../views/chat/message_reference_view_test.exs            | 15 +++++++++++++--
 3 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/lib/pleroma/web/pleroma_api/views/chat/message_reference_view.ex b/lib/pleroma/web/pleroma_api/views/chat/message_reference_view.ex
index f2112a86e..d4e08b50d 100644
--- a/lib/pleroma/web/pleroma_api/views/chat/message_reference_view.ex
+++ b/lib/pleroma/web/pleroma_api/views/chat/message_reference_view.ex
@@ -14,7 +14,7 @@ defmodule Pleroma.Web.PleromaAPI.Chat.MessageReferenceView do
         %{
           chat_message_reference: %{
             id: id,
-            object: %{data: chat_message},
+            object: %{data: chat_message} = object,
             chat_id: chat_id,
             unread: unread
           }
@@ -30,7 +30,12 @@ defmodule Pleroma.Web.PleromaAPI.Chat.MessageReferenceView do
       attachment:
         chat_message["attachment"] &&
           StatusView.render("attachment.json", attachment: chat_message["attachment"]),
-      unread: unread
+      unread: unread,
+      card:
+        StatusView.render(
+          "card.json",
+          Pleroma.Web.RichMedia.Helpers.fetch_data_for_object(object)
+        )
     }
   end
 
diff --git a/lib/pleroma/web/rich_media/helpers.ex b/lib/pleroma/web/rich_media/helpers.ex
index 747f2dc6b..5c7daf1a5 100644
--- a/lib/pleroma/web/rich_media/helpers.ex
+++ b/lib/pleroma/web/rich_media/helpers.ex
@@ -49,11 +49,11 @@ defmodule Pleroma.Web.RichMedia.Helpers do
     |> hd
   end
 
-  def fetch_data_for_activity(%Activity{data: %{"type" => "Create"}} = activity) do
+  def fetch_data_for_object(object) do
     with true <- Config.get([:rich_media, :enabled]),
-         %Object{} = object <- Object.normalize(activity),
          false <- object.data["sensitive"] || false,
-         {:ok, page_url} <- HTML.extract_first_external_url(object, object.data["content"]),
+         {:ok, page_url} <-
+           HTML.extract_first_external_url(object, object.data["content"]),
          :ok <- validate_page_url(page_url),
          {:ok, rich_media} <- Parser.parse(page_url) do
       %{page_url: page_url, rich_media: rich_media}
@@ -62,6 +62,15 @@ defmodule Pleroma.Web.RichMedia.Helpers do
     end
   end
 
+  def fetch_data_for_activity(%Activity{data: %{"type" => "Create"}} = activity) do
+    with true <- Config.get([:rich_media, :enabled]),
+         %Object{} = object <- Object.normalize(activity) do
+      fetch_data_for_object(object)
+    else
+      _ -> %{}
+    end
+  end
+
   def fetch_data_for_activity(_), do: %{}
 
   def perform(:fetch, %Activity{} = activity) do
diff --git a/test/web/pleroma_api/views/chat/message_reference_view_test.exs b/test/web/pleroma_api/views/chat/message_reference_view_test.exs
index e5b165255..40dbae3cd 100644
--- a/test/web/pleroma_api/views/chat/message_reference_view_test.exs
+++ b/test/web/pleroma_api/views/chat/message_reference_view_test.exs
@@ -43,7 +43,17 @@ defmodule Pleroma.Web.PleromaAPI.Chat.MessageReferenceViewTest do
     assert chat_message[:unread] == false
     assert match?([%{shortcode: "firefox"}], chat_message[:emojis])
 
-    {:ok, activity} = CommonAPI.post_chat_message(recipient, user, "gkgkgk", media_id: upload.id)
+    clear_config([:rich_media, :enabled], true)
+
+    Tesla.Mock.mock(fn
+      %{url: "https://example.com/ogp"} ->
+        %Tesla.Env{status: 200, body: File.read!("test/fixtures/rich_media/ogp.html")}
+    end)
+
+    {:ok, activity} =
+      CommonAPI.post_chat_message(recipient, user, "gkgkgk https://example.com/ogp",
+        media_id: upload.id
+      )
 
     object = Object.normalize(activity)
 
@@ -52,10 +62,11 @@ defmodule Pleroma.Web.PleromaAPI.Chat.MessageReferenceViewTest do
     chat_message_two = MessageReferenceView.render("show.json", chat_message_reference: cm_ref)
 
     assert chat_message_two[:id] == cm_ref.id
-    assert chat_message_two[:content] == "gkgkgk"
+    assert chat_message_two[:content] == object.data["content"]
     assert chat_message_two[:account_id] == recipient.id
     assert chat_message_two[:chat_id] == chat_message[:chat_id]
     assert chat_message_two[:attachment]
     assert chat_message_two[:unread] == true
+    assert chat_message_two[:card]
   end
 end