Merge branch 'patch-image-description' into 'develop'

Patch to support image descriptions for pleroma-fe

See merge request pleroma/pleroma!626

lib/pleroma/web/common_api/common_api.ex

@@ -95,7 +95,7 @@ def post(user, %{"status" => status} = data) do
     limit = Pleroma.Config.get([:instance, :limit])
 
     with status <- String.trim(status),
-         attachments <- attachments_from_ids(data["media_ids"]),
+         attachments <- attachments_from_ids(data),
          mentions <- Formatter.parse_mentions(status),
          inReplyTo <- get_replied_to_activity(data["in_reply_to_status_id"]),
          {to, cc} <- to_for_user_and_mentions(user, mentions, inReplyTo, visibility),

lib/pleroma/web/common_api/utils.ex

@@ -35,12 +35,28 @@ def get_replied_to_activity(id) when not is_nil(id) do
 
   def get_replied_to_activity(_), do: nil
 
-  def attachments_from_ids(ids) do
+  def attachments_from_ids(data) do
+    if Map.has_key?(data, "descriptions") do
+      attachments_from_ids_descs(data["media_ids"], data["descriptions"])
+    else
+      attachments_from_ids_no_descs(data["media_ids"])
+    end
+  end
+
+  def attachments_from_ids_no_descs(ids) do
     Enum.map(ids || [], fn media_id ->
       Repo.get(Object, media_id).data
     end)
   end
 
+  def attachments_from_ids_descs(ids, descs_str) do
+    {_, descs} = Jason.decode(descs_str)
+
+    Enum.map(ids || [], fn media_id ->
+      Map.put(Repo.get(Object, media_id).data, "name", descs[media_id])
+    end)
+  end
+
   def to_for_user_and_mentions(user, mentions, inReplyTo, "public") do
     mentioned_users = Enum.map(mentions, fn {_, %{ap_id: ap_id}} -> ap_id end)