2019-01-15 09:43:52 -07:00
|
|
|
defmodule Pleroma.Web.Metadata.Providers.OpenGraph do
|
|
|
|
alias Pleroma.Web.Metadata.Providers.Provider
|
|
|
|
alias Pleroma.{HTML, Formatter, User}
|
|
|
|
alias Pleroma.Web.MediaProxy
|
|
|
|
|
|
|
|
@behaviour Provider
|
|
|
|
|
|
|
|
@impl Provider
|
|
|
|
def build_tags(%{activity: activity, user: user}) do
|
|
|
|
with truncated_content = scrub_html_and_truncate(activity.data["object"]["content"]) do
|
2019-01-15 11:17:56 -07:00
|
|
|
attachments = build_attachments(activity)
|
2019-01-15 11:20:27 -07:00
|
|
|
|
2019-01-15 09:43:52 -07:00
|
|
|
[
|
|
|
|
{:meta,
|
|
|
|
[
|
|
|
|
property: "og:title",
|
|
|
|
content: user_name_string(user)
|
|
|
|
], []},
|
|
|
|
{:meta, [property: "og:url", content: activity.data["id"]], []},
|
|
|
|
{:meta, [property: "og:description", content: truncated_content], []},
|
|
|
|
{:meta, [property: "twitter:card", content: "summary"], []}
|
2019-01-15 11:20:27 -07:00
|
|
|
] ++
|
|
|
|
if attachments == [] 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
|
2019-01-15 09:43:52 -07:00
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
@impl Provider
|
|
|
|
def build_tags(%{user: user}) do
|
|
|
|
with truncated_bio = scrub_html_and_truncate(user.bio || "") do
|
|
|
|
[
|
|
|
|
{:meta,
|
|
|
|
[
|
|
|
|
property: "og:title",
|
|
|
|
content: user_name_string(user)
|
|
|
|
], []},
|
|
|
|
{:meta, [property: "og:url", content: User.profile_url(user)], []},
|
|
|
|
{:meta, [property: "og:description", content: truncated_bio], []},
|
2019-01-15 11:17:56 -07:00
|
|
|
{:meta, [property: "og:image", content: attachment_url(User.avatar_url(user))], []},
|
2019-01-15 09:43:52 -07:00
|
|
|
{:meta, [property: "og:image:width", content: 120], []},
|
|
|
|
{:meta, [property: "og:image:height", content: 120], []},
|
|
|
|
{:meta, [property: "twitter:card", content: "summary"], []}
|
|
|
|
]
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2019-01-15 11:17:56 -07:00
|
|
|
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
|
|
|
|
|
2019-01-15 09:43:52 -07:00
|
|
|
defp scrub_html_and_truncate(content) do
|
|
|
|
content
|
|
|
|
# html content comes from DB already encoded, decode first and scrub after
|
|
|
|
|> HtmlEntities.decode()
|
2019-01-15 10:00:21 -07:00
|
|
|
|> String.replace(~r/<br\s?\/?>/, " ")
|
2019-01-15 09:43:52 -07:00
|
|
|
|> HTML.strip_tags()
|
|
|
|
|> Formatter.truncate()
|
|
|
|
end
|
|
|
|
|
2019-01-15 11:17:56 -07:00
|
|
|
defp attachment_url(url) do
|
|
|
|
MediaProxy.url(url)
|
2019-01-15 09:43:52 -07:00
|
|
|
end
|
|
|
|
|
|
|
|
defp user_name_string(user) do
|
2019-01-15 11:47:45 -07:00
|
|
|
"#{user.name} " <>
|
2019-01-15 09:43:52 -07:00
|
|
|
if user.local do
|
|
|
|
"(@#{user.nickname}@#{Pleroma.Web.Endpoint.host()})"
|
|
|
|
else
|
|
|
|
"(@#{user.nickname})"
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|