Disable previews for any activity, but create

[akkoma] / lib / pleroma / web / metadata / opengraph.ex

diff --git a/lib/pleroma/web/metadata/opengraph.ex b/lib/pleroma/web/metadata/opengraph.ex
index 6d86c0ee6d5720d7b89ada56bf4b4eac9cd4954b..b158569748d5559da9833e10201d59728a35f63f 100644 (file)
--- a/lib/pleroma/web/metadata/opengraph.ex
+++ b/lib/pleroma/web/metadata/opengraph.ex
@@ -7,7 +7,9 @@ defmodule Pleroma.Web.Metadata.Providers.OpenGraph do
 
   @impl Provider
   def build_tags(%{activity: activity, user: user}) do
-    with truncated_content = scrub_html_and_truncate(activity.data["object"]["content"]) do
+    with truncated_content = scrub_html_and_truncate(activity) do
+      attachments = build_attachments(activity)
+
       [
         {:meta,
          [
@@ -15,12 +17,18 @@ defmodule Pleroma.Web.Metadata.Providers.OpenGraph do
            content: user_name_string(user)
          ], []},
         {:meta, [property: "og:url", content: activity.data["id"]], []},
-        {:meta, [property: "og:description", content: truncated_content], []},
-        {:meta, [property: "og:image", content: user_avatar_url(user)], []},
-        {:meta, [property: "og:image:width", content: 120], []},
-        {:meta, [property: "og:image:height", content: 120], []},
-        {:meta, [property: "twitter:card", content: "summary"], []}
-      ]
+        {:meta, [property: "og:description", content: truncated_content], []}
+      ] ++
+        if attachments == [] or
+             Enum.any?(activity.data["object"]["tag"], fn tag -> tag == "nsfw" end) do
+          [
+            {:meta, [property: "og:image", content: attachment_url(User.avatar_url(user))], []},
+            {:meta, [property: "og:image:width", content: 120], []},
+            {:meta, [property: "og:image:height", content: 120], []}
+          ]
+        else
+          attachments
+        end
     end
   end
 
@@ -35,15 +43,44 @@ defmodule Pleroma.Web.Metadata.Providers.OpenGraph do
          ], []},
         {:meta, [property: "og:url", content: User.profile_url(user)], []},
         {:meta, [property: "og:description", content: truncated_bio], []},
-        {:meta, [property: "og:image", content: user_avatar_url(user)], []},
+        {:meta, [property: "og:image", content: attachment_url(User.avatar_url(user))], []},
         {:meta, [property: "og:image:width", content: 120], []},
-        {:meta, [property: "og:image:height", content: 120], []},
-        {:meta, [property: "twitter:card", content: "summary"], []}
+        {:meta, [property: "og:image:height", content: 120], []}
       ]
     end
   end
 
-  defp scrub_html_and_truncate(content) do
+  defp build_attachments(activity) do
+    Enum.reduce(activity.data["object"]["attachment"], [], fn attachment, acc ->
+      rendered_tags =
+        Enum.map(attachment["url"], fn url ->
+          media_type =
+            Enum.find(["image", "audio", "video"], fn media_type ->
+              String.starts_with?(url["mediaType"], media_type)
+            end)
+
+          if media_type do
+            {:meta, [property: "og:" <> media_type, content: attachment_url(url["href"])], []}
+          else
+            nil
+          end
+        end)
+
+      Enum.reject(rendered_tags, &is_nil/1)
+      acc ++ rendered_tags
+    end)
+  end
+
+  defp scrub_html_and_truncate(%{data: %{"object" => %{"content" => content}}} = activity) do
+    content
+    # html content comes from DB already encoded, decode first and scrub after
+    |> HtmlEntities.decode()
+    |> String.replace(~r/<br\s?\/?>/, " ")
+    |> HTML.get_cached_stripped_html_for_object(activity, __MODULE__)
+    |> Formatter.truncate()
+  end
+
+  defp scrub_html_and_truncate(content) when is_binary(content) do
     content
     # html content comes from DB already encoded, decode first and scrub after
     |> HtmlEntities.decode()
@@ -52,12 +89,12 @@ defmodule Pleroma.Web.Metadata.Providers.OpenGraph do
     |> Formatter.truncate()
   end
 
-  defp user_avatar_url(user) do
-    User.avatar_url(user) |> MediaProxy.url()
+  defp attachment_url(url) do
+    MediaProxy.url(url)
   end
 
   defp user_name_string(user) do
-    "#{user.name}" <>
+    "#{user.name} " <>
       if user.local do
         "(@#{user.nickname}@#{Pleroma.Web.Endpoint.host()})"
       else