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Add OEmbed parser

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This commit is contained in:
Maxim Filippov 2019-01-13 02:06:50 +02:00
parent 19b6a82393
commit b8a77c5d70
5 changed files with 77 additions and 1 deletions
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6
lib/pleroma/web/rich_media/parser.ex
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@ -1,5 +1,9 @@
defmodule Pleroma.Web.RichMedia.Parser do
@parsers [Pleroma.Web.RichMedia.Parsers.OGP, Pleroma.Web.RichMedia.Parsers.TwitterCard]
@parsers [
Pleroma.Web.RichMedia.Parsers.OGP,
Pleroma.Web.RichMedia.Parsers.TwitterCard,
Pleroma.Web.RichMedia.Parsers.OEmbed
]
if Mix.env() == :test do
def parse(url), do: parse_url(url)

27
lib/pleroma/web/rich_media/parsers/oembed_parser.ex Normal file
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@ -0,0 +1,27 @@
defmodule Pleroma.Web.RichMedia.Parsers.OEmbed do
def parse(html, _data) do
with elements = [_ | _] <- get_discovery_data(html),
{:ok, oembed_url} <- get_oembed_url(elements),
{:ok, oembed_data} <- get_oembed_data(oembed_url) do
{:ok, oembed_data}
else
_e -> {:error, "No OEmbed data found"}
end
end
defp get_discovery_data(html) do
html |> Floki.find("link[type='application/json+oembed']")
end
defp get_oembed_url(nodes) do
{"link", attributes, _children} = nodes |> hd()
{:ok, Enum.into(attributes, %{})["href"]}
end
defp get_oembed_data(url) do
{:ok, %Tesla.Env{body: json}} = Pleroma.HTTP.get(url)
{:ok, Poison.decode!(json)}
end
end

3
test/fixtures/rich_media/oembed.html vendored Normal file
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@ -0,0 +1,3 @@
<link rel="alternate" type="application/json+oembed"
href="http://example.com/oembed.json"
title="Bacon Lollys oEmbed Profile" />

1
test/fixtures/rich_media/oembed.json vendored Normal file
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@ -0,0 +1 @@
{"type":"photo","flickr_type":"photo","title":"Bacon Lollys","author_name":"\u202e\u202d\u202cbees\u202c","author_url":"https:\/\/www.flickr.com\/photos\/bees\/","width":"1024","height":"768","url":"https:\/\/farm4.staticflickr.com\/3040\/2362225867_4a87ab8baf_b.jpg","web_page":"https:\/\/www.flickr.com\/photos\/bees\/2362225867\/","thumbnail_url":"https:\/\/farm4.staticflickr.com\/3040\/2362225867_4a87ab8baf_q.jpg","thumbnail_width":150,"thumbnail_height":150,"web_page_short_url":"https:\/\/flic.kr\/p\/4AK2sc","license":"All Rights Reserved","license_id":0,"html":"<a data-flickr-embed=\"true\" href=\"https:\/\/www.flickr.com\/photos\/bees\/2362225867\/\" title=\"Bacon Lollys by \u202e\u202d\u202cbees\u202c, on Flickr\"><img src=\"https:\/\/farm4.staticflickr.com\/3040\/2362225867_4a87ab8baf_b.jpg\" width=\"1024\" height=\"768\" alt=\"Bacon Lollys\"><\/a><script async src=\"https:\/\/embedr.flickr.com\/assets\/client-code.js\" charset=\"utf-8\"><\/script>","version":"1.0","cache_age":3600,"provider_name":"Flickr","provider_url":"https:\/\/www.flickr.com\/"}

41
test/web/rich_media/parser_test.exs
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@ -15,6 +15,18 @@ defmodule Pleroma.Web.RichMedia.ParserTest do
} ->
%Tesla.Env{status: 200, body: File.read!("test/fixtures/rich_media/twitter_card.html")}
%{
method: :get,
url: "http://example.com/oembed"
} ->
%Tesla.Env{status: 200, body: File.read!("test/fixtures/rich_media/oembed.html")}
%{
method: :get,
url: "http://example.com/oembed.json"
} ->
%Tesla.Env{status: 200, body: File.read!("test/fixtures/rich_media/oembed.json")}
%{method: :get, url: "http://example.com/empty"} ->
%Tesla.Env{status: 200, body: "hello"}
end)
@ -48,4 +60,33 @@ defmodule Pleroma.Web.RichMedia.ParserTest do
description: "View the album on Flickr."
}}
end
test "parses OEmbed" do
assert Pleroma.Web.RichMedia.Parser.parse("http://example.com/oembed") ==
{:ok,
%{
"author_name" => "‮‭‬bees‬",
"author_url" => "https://www.flickr.com/photos/bees/",
"cache_age" => 3600,
"flickr_type" => "photo",
"height" => "768",
"html" =>
"<a data-flickr-embed=\"true\" href=\"https://www.flickr.com/photos/bees/2362225867/\" title=\"Bacon Lollys by ‮‭‬bees‬, on Flickr\"><img src=\"https://farm4.staticflickr.com/3040/2362225867_4a87ab8baf_b.jpg\" width=\"1024\" height=\"768\" alt=\"Bacon Lollys\"></a><script async src=\"https://embedr.flickr.com/assets/client-code.js\" charset=\"utf-8\"></script>",
"license" => "All Rights Reserved",
"license_id" => 0,
"provider_name" => "Flickr",
"provider_url" => "https://www.flickr.com/",
"thumbnail_height" => 150,
"thumbnail_url" =>
"https://farm4.staticflickr.com/3040/2362225867_4a87ab8baf_q.jpg",
"thumbnail_width" => 150,
"title" => "Bacon Lollys",
"type" => "photo",
"url" => "https://farm4.staticflickr.com/3040/2362225867_4a87ab8baf_b.jpg",
"version" => "1.0",
"web_page" => "https://www.flickr.com/photos/bees/2362225867/",
"web_page_short_url" => "https://flic.kr/p/4AK2sc",
"width" => "1024"
}}
end
end