pleroma/test/web/rich_media/parser_test.exs

# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only

defmodule Pleroma.Web.RichMedia.ParserTest do
  use ExUnit.Case, async: true

  setup do
    Tesla.Mock.mock(fn
      %{
        method: :get,
        url: "http://example.com/ogp"
      } ->
        %Tesla.Env{status: 200, body: File.read!("test/fixtures/rich_media/ogp.html")}

      %{
        method: :get,
        url: "http://example.com/non-ogp"
      } ->
        %Tesla.Env{status: 200, body: File.read!("test/fixtures/rich_media/non_ogp_embed.html")}

      %{
        method: :get,
        url: "http://example.com/ogp-missing-title"
      } ->
        %Tesla.Env{
          status: 200,
          body: File.read!("test/fixtures/rich_media/ogp-missing-title.html")
        }

      %{
        method: :get,
        url: "http://example.com/twitter-card"
      } ->
        %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)

    :ok
  end

  test "returns error when no metadata present" do
    assert {:error, _} = Pleroma.Web.RichMedia.Parser.parse("http://example.com/empty")
  end

  test "doesn't just add a title" do
    assert Pleroma.Web.RichMedia.Parser.parse("http://example.com/non-ogp") ==
             {:error,
              "Found metadata was invalid or incomplete: %{url: \"http://example.com/non-ogp\"}"}
  end

  test "parses ogp" do
    assert Pleroma.Web.RichMedia.Parser.parse("http://example.com/ogp") ==
             {:ok,
              %{
                image: "http://ia.media-imdb.com/images/rock.jpg",
                title: "The Rock",
                description:
                  "Directed by Michael Bay. With Sean Connery, Nicolas Cage, Ed Harris, John Spencer.",
                type: "video.movie",
                url: "http://example.com/ogp"
              }}
  end

  test "falls back to <title> when ogp:title is missing" do
    assert Pleroma.Web.RichMedia.Parser.parse("http://example.com/ogp-missing-title") ==
             {:ok,
              %{
                image: "http://ia.media-imdb.com/images/rock.jpg",
                title: "The Rock (1996)",
                description:
                  "Directed by Michael Bay. With Sean Connery, Nicolas Cage, Ed Harris, John Spencer.",
                type: "video.movie",
                url: "http://example.com/ogp-missing-title"
              }}
  end

  test "parses twitter card" do
    assert Pleroma.Web.RichMedia.Parser.parse("http://example.com/twitter-card") ==
             {:ok,
              %{
                card: "summary",
                site: "@flickr",
                image: "https://farm6.staticflickr.com/5510/14338202952_93595258ff_z.jpg",
                title: "Small Island Developing States Photo Submission",
                description: "View the album on Flickr.",
                url: "http://example.com/twitter-card"
              }}
  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: "http://example.com/oembed",
                version: "1.0",
                web_page: "https://www.flickr.com/photos/bees/2362225867/",
                web_page_short_url: "https://flic.kr/p/4AK2sc",
                width: "1024"
              }}
  end

  test "rejects invalid OGP data" do
    assert {:error, _} = Pleroma.Web.RichMedia.Parser.parse("http://example.com/malformed")
  end
end