defmodule Pleroma.Web.Metadata.Providers.OpenGraph do
alias Pleroma.User
+ alias Pleroma.Web.MediaProxy
alias Pleroma.Web.Metadata
alias Pleroma.Web.Metadata.Providers.Provider
alias Pleroma.Web.Metadata.Utils
property: "og:description",
content: scrubbed_content
], []},
- {:meta, [property: "og:type", content: "website"], []}
+ {:meta, [property: "og:type", content: "article"], []}
] ++
if attachments == [] or Metadata.activity_nsfw?(object) do
[
- {:meta, [property: "og:image", content: Utils.attachment_url(User.avatar_url(user))],
+ {:meta, [property: "og:image", content: MediaProxy.preview_url(User.avatar_url(user))],
[]},
{:meta, [property: "og:image:width", content: 150], []},
{:meta, [property: "og:image:height", content: 150], []}
], []},
{:meta, [property: "og:url", content: user.uri || user.ap_id], []},
{:meta, [property: "og:description", content: truncated_bio], []},
- {:meta, [property: "og:type", content: "website"], []},
- {:meta, [property: "og:image", content: Utils.attachment_url(User.avatar_url(user))], []},
+ {:meta, [property: "og:type", content: "article"], []},
+ {:meta, [property: "og:image", content: MediaProxy.preview_url(User.avatar_url(user))],
+ []},
{:meta, [property: "og:image:width", content: 150], []},
{:meta, [property: "og:image:height", content: 150], []}
]
Enum.reduce(attachments, [], fn attachment, acc ->
rendered_tags =
Enum.reduce(attachment["url"], [], fn url, acc ->
- # TODO: Add additional properties to objects when we have the data available.
- # Also, Whatsapp only wants JPEG or PNGs. It seems that if we add a second og:image
+ # TODO: Whatsapp only wants JPEG or PNGs. It seems that if we add a second og:image
# object when a Video or GIF is attached it will display that in Whatsapp Rich Preview.
case Utils.fetch_media_type(@media_types, url["mediaType"]) do
"audio" ->
[
- {:meta, [property: "og:audio", content: Utils.attachment_url(url["href"])], []}
+ {:meta, [property: "og:audio", content: MediaProxy.url(url["href"])], []}
| acc
]
+ # Not using preview_url for this. It saves bandwidth, but the image dimensions will
+ # be wrong. We generate it on the fly and have no way to capture or analyze the
+ # image to get the dimensions. This can be an issue for apps/FEs rendering images
+ # in timelines too, but you can get clever with the aspect ratio metadata as a
+ # workaround.
"image" ->
[
- {:meta, [property: "og:image", content: Utils.attachment_url(url["href"])], []},
+ {:meta, [property: "og:image", content: MediaProxy.url(url["href"])], []},
{:meta, [property: "og:image:alt", content: attachment["name"]], []}
| acc
]
+ |> maybe_add_dimensions(url)
"video" ->
[
- {:meta, [property: "og:video", content: Utils.attachment_url(url["href"])], []}
+ {:meta, [property: "og:video", content: MediaProxy.url(url["href"])], []}
| acc
]
+ |> maybe_add_dimensions(url)
+ |> maybe_add_video_thumbnail(url)
_ ->
acc
end
defp build_attachments(_), do: []
+
+ # We can use url["mediaType"] to dynamically fill the metadata
+ defp maybe_add_dimensions(metadata, url) do
+ type = url["mediaType"] |> String.split("/") |> List.first()
+
+ cond do
+ !is_nil(url["height"]) && !is_nil(url["width"]) ->
+ metadata ++
+ [
+ {:meta, [property: "og:#{type}:width", content: "#{url["width"]}"], []},
+ {:meta, [property: "og:#{type}:height", content: "#{url["height"]}"], []}
+ ]
+
+ true ->
+ metadata
+ end
+ end
+
+ # Media Preview Proxy makes thumbnails of videos without resizing, so we can trust the
+ # width and height of the source video.
+ defp maybe_add_video_thumbnail(metadata, url) do
+ cond do
+ Pleroma.Config.get([:media_preview_proxy, :enabled], false) ->
+ metadata ++
+ [
+ {:meta, [property: "og:image:width", content: "#{url["width"]}"], []},
+ {:meta, [property: "og:image:height", content: "#{url["height"]}"], []},
+ {:meta, [property: "og:image", content: MediaProxy.preview_url(url["href"])], []}
+ ]
+
+ true ->
+ metadata
+ end
+ end
end