123 lines
3.8 KiB
Elixir
123 lines
3.8 KiB
Elixir
# Pleroma: A lightweight social networking server
|
|
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
defmodule Pleroma.Web.Metadata.Providers.TwitterCard do
|
|
alias Pleroma.User
|
|
alias Pleroma.Web.Metadata
|
|
alias Pleroma.Web.Metadata.Providers.Provider
|
|
alias Pleroma.Web.Metadata.Utils
|
|
|
|
@behaviour Provider
|
|
|
|
@impl Provider
|
|
def build_tags(%{
|
|
activity_id: id,
|
|
object: object,
|
|
user: user
|
|
}) do
|
|
attachments = build_attachments(id, object)
|
|
scrubbed_content = Utils.scrub_html_and_truncate(object)
|
|
# Zero width space
|
|
content =
|
|
if scrubbed_content != "" and scrubbed_content != "\u200B" do
|
|
"“" <> scrubbed_content <> "”"
|
|
else
|
|
""
|
|
end
|
|
|
|
[
|
|
{:meta,
|
|
[
|
|
property: "twitter:title",
|
|
content: Utils.user_name_string(user)
|
|
], []},
|
|
{:meta,
|
|
[
|
|
property: "twitter:description",
|
|
content: content
|
|
], []}
|
|
] ++
|
|
if attachments == [] or Metadata.activity_nsfw?(object) do
|
|
[
|
|
{:meta,
|
|
[property: "twitter:image", content: Utils.attachment_url(User.avatar_url(user))], []},
|
|
{:meta, [property: "twitter:card", content: "summary_large_image"], []}
|
|
]
|
|
else
|
|
attachments
|
|
end
|
|
end
|
|
|
|
@impl Provider
|
|
def build_tags(%{user: user}) do
|
|
with truncated_bio = Utils.scrub_html_and_truncate(user.bio || "") do
|
|
[
|
|
{:meta,
|
|
[
|
|
property: "twitter:title",
|
|
content: Utils.user_name_string(user)
|
|
], []},
|
|
{:meta, [property: "twitter:description", content: truncated_bio], []},
|
|
{:meta, [property: "twitter:image", content: Utils.attachment_url(User.avatar_url(user))],
|
|
[]},
|
|
{:meta, [property: "twitter:card", content: "summary"], []}
|
|
]
|
|
end
|
|
end
|
|
|
|
defp build_attachments(id, %{data: %{"attachment" => attachments}}) do
|
|
Enum.reduce(attachments, [], fn attachment, acc ->
|
|
rendered_tags =
|
|
Enum.reduce(attachment["url"], [], fn url, acc ->
|
|
media_type =
|
|
Enum.find(["image", "audio", "video"], fn media_type ->
|
|
String.starts_with?(url["mediaType"], media_type)
|
|
end)
|
|
|
|
# TODO: Add additional properties to objects when we have the data available.
|
|
case media_type do
|
|
"audio" ->
|
|
[
|
|
{:meta, [property: "twitter:card", content: "player"], []},
|
|
{:meta, [property: "twitter:player:width", content: "480"], []},
|
|
{:meta, [property: "twitter:player:height", content: "80"], []},
|
|
{:meta, [property: "twitter:player", content: player_url(id)], []}
|
|
| acc
|
|
]
|
|
|
|
"image" ->
|
|
[
|
|
{:meta, [property: "twitter:card", content: "summary_large_image"], []},
|
|
{:meta,
|
|
[
|
|
property: "twitter:player",
|
|
content: Utils.attachment_url(url["href"])
|
|
], []}
|
|
| acc
|
|
]
|
|
|
|
# TODO: Need the true width and height values here or Twitter renders an iFrame with
|
|
# a bad aspect ratio
|
|
"video" ->
|
|
[
|
|
{:meta, [property: "twitter:card", content: "player"], []},
|
|
{:meta, [property: "twitter:player", content: player_url(id)], []},
|
|
{:meta, [property: "twitter:player:width", content: "480"], []},
|
|
{:meta, [property: "twitter:player:height", content: "480"], []}
|
|
| acc
|
|
]
|
|
|
|
_ ->
|
|
acc
|
|
end
|
|
end)
|
|
|
|
acc ++ rendered_tags
|
|
end)
|
|
end
|
|
|
|
defp player_url(id) do
|
|
Pleroma.Web.Router.Helpers.o_status_url(Pleroma.Web.Endpoint, :notice_player, id)
|
|
end
|
|
end
|