From b2da5262eacf65b1f5fcb6c4f9e31561df1884dd Mon Sep 17 00:00:00 2001
From: "Haelwenn (lanodan) Monnier" <contact@hacktivis.me>
Date: Thu, 1 Nov 2018 09:56:37 +0100
Subject: [PATCH] Pleroma.Web.ActivityPub.Transmogrifier: fix_url when not a
 string/empty

Thanks prismo.news, I hate it
---
 .../web/activity_pub/transmogrifier.ex        | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index cbc800ad6..56918342c 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -57,6 +57,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     object
     |> fix_actor
     |> fix_attachments
+    |> fix_url
     |> fix_context
     |> fix_in_reply_to
     |> fix_emoji
@@ -171,6 +172,27 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
 
   def fix_attachments(object), do: object
 
+  def fix_url(%{"url" => url} = object) when is_map(url) do
+    object
+    |> Map.put("url", url["href"])
+  end
+
+  def fix_url(%{"url" => url} = object) when is_list(url) do
+    first_element = Enum.at(url, 0)
+
+    url_string =
+      cond do
+        is_bitstring(first_element) -> first_element
+        is_map(first_element) -> first_element["href"] || ""
+        true -> ""
+      end
+
+    object
+    |> Map.put("url", url_string)
+  end
+
+  def fix_url(object), do: object
+
   def fix_emoji(%{"tag" => tags} = object) when is_list(tags) do
     emoji = tags |> Enum.filter(fn data -> data["type"] == "Emoji" and data["icon"] end)