Commit d903e34c authored by raeno's avatar raeno
Browse files

Add opengraph/twitter_card:summary support. Add config to toggle on/off specific metadata

parent 89029421
......@@ -171,6 +171,10 @@
ip: {0, 0, 0, 0},
port: 9999
config :pleroma, :metadata,
oembed: false,
opengraph: true
config :pleroma, :suggestions,
enabled: false,
third_party_engine:
......
......@@ -5,11 +5,12 @@ defmodule Pleroma.Web.OStatus do
import Pleroma.Web.XML
require Logger
alias Pleroma.{Repo, User, Web, Object, Activity}
alias Pleroma.{Repo, User, Web, Object, Activity, Formatter}
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.{WebFinger, Websub}
alias Pleroma.Web.{WebFinger, Websub, MediaProxy}
alias Pleroma.Web.OStatus.{FollowHandler, UnfollowHandler, NoteHandler, DeleteHandler}
alias Pleroma.Web.ActivityPub.Transmogrifier
alias Phoenix.HTML
def is_representable?(%Activity{data: data}) do
object = Object.normalize(data["object"])
......@@ -26,14 +27,59 @@ def is_representable?(%Activity{data: data}) do
end
end
def metadata(url), do: oembed_links(url)
def metadata(activity, user, url) do
Enum.concat([
if(meta_enabled?(:opengraph), do: opengraph_tags(activity, user), else: []),
if(meta_enabled?(:oembed), do: oembed_links(url), else: [])
])
|> Enum.map(&to_tag/1)
|> Enum.map(&HTML.safe_to_string/1)
|> Enum.join("\n")
end
def meta_enabled?(type) do
config = Pleroma.Config.get(:metadata, [])
Keyword.get(config, type, false)
end
def to_tag(data) do
with {name, attrs, _content = []} <- data do
HTML.Tag.tag(name, attrs)
else
{name, attrs, content} ->
HTML.Tag.content_tag(name, content, attrs)
_ ->
raise ArgumentError, message: "make_tag invalid args"
end
end
def oembed_links(url) do
Enum.map(["xml", "json"], fn format ->
href = oembed_path(url, format)
"<link rel=\"alternate\" type=\"application/#{format}+oembed\" href=\"#{href}\">"
href = HTML.raw(oembed_path(url, format))
{ :link, [ type: ["application/#{format}+oembed"], href: href, rel: 'alternate'], [] }
end)
|> Enum.join("\r\n")
end
def opengraph_tags(activity, user) do
with image = User.avatar_url(user) |> MediaProxy.url(),
truncated_content = Formatter.truncate(activity.data["object"]["content"]),
domain = Pleroma.Config.get([:instance, :domain], "UNKNOWN_DOMAIN") do
[
{:meta,
[
property: "og:title",
content: "#{user.name} (@#{user.nickname}@#{domain}) post ##{activity.id}"
], []},
{:meta, [property: "og:url", content: activity.data["id"]], []},
{:meta, [property: "og:description", content: truncated_content],
[]},
{:meta, [property: "og:image", content: image], []},
{:meta, [property: "og:image:width", content: 120], []},
{:meta, [property: "og:image:height", content: 120], []},
{:meta, [property: "twitter:card", content: "summary"], []}
]
end
end
def feed_path(user) do
......
......@@ -134,7 +134,7 @@ def notice(conn, %{"id" => id}) do
%User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do
case format = get_format(conn) do
"html" ->
serve_static_with_meta(conn, activity)
serve_static_with_meta(conn, activity, user)
_ ->
represent_activity(conn, format, activity, user)
......@@ -151,9 +151,9 @@ def notice(conn, %{"id" => id}) do
end
end
defp serve_static_with_meta(conn, activity) do
defp serve_static_with_meta(conn, activity, user) do
{:ok, index_content } = File.read(Application.app_dir(:pleroma, "priv/static/index.html"))
links = OStatus.metadata(request_url(conn))
links = OStatus.metadata(activity, user, request_url(conn))
response = String.replace(index_content, "<!--server-generated-meta-->", links)
conn
|> put_resp_content_type("text/html")
......
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