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Improve opengraph embeds

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This brings them more in line with Mastodon.
- Deduplicates display name from the title and content
- Removes arbitrary limits on the size of the embedded image
- Removes angled double quotes from embed descriptions. These would normally just indicate that the content is a quote, but that is already implied by the content being in an embed.
This commit is contained in:
io 2021-06-04 04:15:54 +00:00
parent a5dce42c85
commit 2c401dafa1
3 changed files with 13 additions and 30 deletions
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20
lib/pleroma/web/metadata/providers/open_graph.ex
View file

@ -19,31 +19,18 @@ def build_tags(%{
}) do
attachments = build_attachments(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
# Most previews only show og:title which is inconvenient. Instagram
# hacks this by putting the description in the title and making the
# description longer prefixed by how many likes and shares the post
# has. Here we use the descriptive nickname in the title, and expand
# the full account & nickname in the description. We also use the cute^Wevil
# smart quotes around the status text like Instagram, too.
[
{:meta,
[
property: "og:title",
content: "#{user.name}" <> content
content: Utils.user_name_string(user)
], []},
{:meta, [property: "og:url", content: url], []},
{:meta,
[
property: "og:description",
content: "#{Utils.user_name_string(user)}" <> content
content: scrubbed_content
], []},
{:meta, [property: "og:type", content: "website"], []}
] ++
@ -95,8 +82,7 @@ defp build_attachments(%{data: %{"attachment" => attachments}}) do
"image" ->
[
{:meta, [property: "og:image", content: Utils.attachment_url(url["href"])], []},
{:meta, [property: "og:image:width", content: 150], []},
{:meta, [property: "og:image:height", content: 150], []}
{:meta, [property: "og:image:alt", content: attachment["name"]], []}
| acc
]

13
lib/pleroma/web/metadata/providers/twitter_card.ex
View file

@ -16,17 +16,10 @@ defmodule Pleroma.Web.Metadata.Providers.TwitterCard do
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
[
title_tag(user),
{:meta, [property: "twitter:description", content: content], []}
{:meta, [property: "twitter:description", content: scrubbed_content], []}
] ++
if attachments == [] or Metadata.activity_nsfw?(object) do
[
@ -91,7 +84,9 @@ defp build_attachments(id, %{data: %{"attachment" => attachments}}) do
{: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"], []}
{:meta, [property: "twitter:player:height", content: "480"], []},
{:meta, [property: "twitter:player:stream", content: url["href"]], []},
{:meta, [property: "twitter:player:stream:content_type", content: url["mediaType"]], []}
| acc
]

10
test/pleroma/web/metadata/providers/twitter_card_test.exs
View file

@ -46,7 +46,7 @@ test "it uses summary twittercard if post has no attachment" do
assert [
{:meta, [property: "twitter:title", content: Utils.user_name_string(user)], []},
{:meta, [property: "twitter:description", content: "“pleroma in a nutshell”"], []},
{:meta, [property: "twitter:description", content: "pleroma in a nutshell"], []},
{:meta, [property: "twitter:image", content: "http://localhost:4001/images/avi.png"],
[]},
{:meta, [property: "twitter:card", content: "summary"], []}
@ -91,7 +91,7 @@ test "it renders avatar not attachment if post is nsfw and unfurl_nsfw is disabl
assert [
{:meta, [property: "twitter:title", content: Utils.user_name_string(user)], []},
{:meta, [property: "twitter:description", content: "“pleroma in a nutshell”"], []},
{:meta, [property: "twitter:description", content: "pleroma in a nutshell"], []},
{:meta, [property: "twitter:image", content: "http://localhost:4001/images/avi.png"],
[]},
{:meta, [property: "twitter:card", content: "summary"], []}
@ -134,7 +134,7 @@ test "it renders supported types of attachments and skips unknown types" do
assert [
{:meta, [property: "twitter:title", content: Utils.user_name_string(user)], []},
{:meta, [property: "twitter:description", content: "“pleroma in a nutshell”"], []},
{:meta, [property: "twitter:description", content: "pleroma in a nutshell"], []},
{:meta, [property: "twitter:card", content: "summary_large_image"], []},
{:meta, [property: "twitter:player", content: "https://pleroma.gov/tenshi.png"], []},
{:meta, [property: "twitter:card", content: "player"], []},
@ -144,7 +144,9 @@ test "it renders supported types of attachments and skips unknown types" do
content: Router.Helpers.o_status_url(Endpoint, :notice_player, activity.id)
], []},
{:meta, [property: "twitter:player:width", content: "480"], []},
{:meta, [property: "twitter:player:height", content: "480"], []}
{:meta, [property: "twitter:player:height", content: "480"], []},
{:meta, [property: "twitter:player:stream", content: "https://pleroma.gov/about/juche.webm"], []},
{:meta, [property: "twitter:player:stream:content_type", content: "video/webm"], []}
] == result
end
end