665 lines
22 KiB
Ruby
665 lines
22 KiB
Ruby
# frozen_string_literal: true
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require "stringio"
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RSpec.describe TopicEmbed do
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it { is_expected.to belong_to :topic }
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it { is_expected.to belong_to :post }
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it { is_expected.to validate_presence_of :embed_url }
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describe ".import" do
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fab!(:user) { Fabricate(:user, refresh_auto_groups: true) }
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let(:title) { "How to turn a fish from good to evil in 30 seconds" }
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let(:url) { "http://eviltrout.com/123" }
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let(:contents) do
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"<p>hello world new post <a href='/hello'>hello</a> <img src='images/wat.jpg'></p>"
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end
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fab!(:embeddable_host)
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fab!(:category)
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fab!(:tag)
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it "returns nil when the URL is malformed" do
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expect(TopicEmbed.import(user, "invalid url", title, contents)).to eq(nil)
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expect(TopicEmbed.count).to eq(0)
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end
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it "Allows figure and figcaption HTML tags" do
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html = <<~HTML
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<html>
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<head>
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<title>Some title</title>
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</head>
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<body>
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<div class='content'>
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<p>some content</p>
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<figure>
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<img src="/a.png">
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<figcaption>Some caption</figcaption>
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<figure>
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</div>
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</body>
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</html>
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HTML
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parsed = TopicEmbed.parse_html(html, "https://blog.discourse.com/somepost.html")
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# div inception is inserted by the readability gem
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expected = <<~HTML
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<div><div>
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<div>
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<p>some content</p>
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<figure>
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<img src="https://blog.discourse.com/a.png">
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<figcaption>Some caption</figcaption>
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<figure>
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</figure></figure></div>
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</div></div>
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HTML
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expect(parsed.body.strip).to eq(expected.strip)
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end
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context "when creating a post" do
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let!(:post) { TopicEmbed.import(user, url, title, contents) }
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let(:topic_embed) { TopicEmbed.find_by(post: post) }
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it "works as expected with a new URL" do
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expect(post).to be_present
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# It uses raw_html rendering
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expect(post.cook_method).to eq(Post.cook_methods[:raw_html])
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expect(post.cooked).to eq(post.raw)
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# It converts relative URLs to absolute
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expect(post.cooked).to have_tag("a", with: { href: "http://eviltrout.com/hello" })
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expect(post.cooked).to have_tag("img", with: { src: "http://eviltrout.com/images/wat.jpg" })
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# It caches the embed content
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expect(post.topic.topic_embed.embed_content_cache).to eq(contents)
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# It converts relative URLs to absolute when expanded
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stub_request(:get, url).to_return(status: 200, body: contents)
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expect(TopicEmbed.expanded_for(post)).to have_tag(
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"img",
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with: {
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src: "http://eviltrout.com/images/wat.jpg",
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},
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)
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expect(post.topic.has_topic_embed?).to eq(true)
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expect(TopicEmbed.where(topic_id: post.topic_id)).to be_present
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expect(post.topic.category).to eq(embeddable_host.category)
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expect(post.topic).not_to be_visible
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end
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it "Supports updating the post content" do
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expect do
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TopicEmbed.import(user, url, "New title received", "<p>muhahaha new contents!</p>")
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end.to change { topic_embed.reload.content_sha1 }
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expect(topic_embed.topic.title).to eq("New title received")
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expect(topic_embed.post.cooked).to match(/new contents/)
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end
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it "Supports updating the post author" do
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new_user = Fabricate(:user)
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TopicEmbed.import(new_user, url, title, contents)
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topic_embed.reload
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expect(topic_embed.post.user).to eq(new_user)
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expect(topic_embed.post.topic.user).to eq(new_user)
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end
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it "Supports updating the embed content cache" do
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expect do TopicEmbed.import(user, url, title, "new contents") end.to change {
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topic_embed.reload.embed_content_cache
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}
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expect(topic_embed.embed_content_cache).to eq("new contents")
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end
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it "Should leave uppercase Feed Entry URL untouched in content" do
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cased_url = "http://eviltrout.com/ABCD"
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post = TopicEmbed.import(user, cased_url, title, "some random content")
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expect(post.cooked).to match(/#{cased_url}/)
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end
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it "Should leave lowercase Feed Entry URL untouched in content" do
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cased_url = "http://eviltrout.com/abcd"
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post = TopicEmbed.import(user, cased_url, title, "some random content")
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expect(post.cooked).to match(/#{cased_url}/)
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end
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shared_examples "topic is unlisted" do
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it "unlists the topic until someone replies" do
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Jobs.run_immediately!
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imported_post =
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TopicEmbed.import(user, "http://eviltrout.com/abcd", title, "some random content")
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expect(imported_post.topic).not_to be_visible
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pc =
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PostCreator.new(
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Fabricate(:user),
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raw: "this is a reply that will make the topic visible",
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topic_id: imported_post.topic_id,
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reply_to_post_number: 1,
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)
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pc.create
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expect(imported_post.topic.reload).to be_visible
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end
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end
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context "when import embed unlisted is true" do
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before { SiteSetting.import_embed_unlisted = true }
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include_examples "topic is unlisted"
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context "when embed unlisted is false" do
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before { SiteSetting.embed_unlisted = false }
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include_examples "topic is unlisted"
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end
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end
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context "when import embed unlisted is false" do
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before { SiteSetting.import_embed_unlisted = false }
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context "when embed unlisted is false" do
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before { SiteSetting.embed_unlisted = false }
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it "lists the topic" do
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Jobs.run_immediately!
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imported_post =
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TopicEmbed.import(user, "http://eviltrout.com/abcd", title, "some random content")
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expect(imported_post.topic).to be_visible
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end
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end
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context "when embed unlisted is true" do
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before { SiteSetting.embed_unlisted = true }
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include_examples "topic is unlisted"
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end
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end
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it "creates the topic in the category passed as a parameter" do
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Jobs.run_immediately!
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imported_post =
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TopicEmbed.import(
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user,
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"http://eviltrout.com/abcd",
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title,
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"some random content",
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category_id: category.id,
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)
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expect(imported_post.topic.category).not_to eq(embeddable_host.category)
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expect(imported_post.topic.category).to eq(category)
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end
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it "does not create duplicate topics with different protocols in the embed_url" do
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Jobs.run_immediately!
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expect {
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TopicEmbed.import(user, "http://eviltrout.com/abcd", title, "some random content")
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}.to change { Topic.all.count }.by(1)
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expect {
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TopicEmbed.import(user, "https://eviltrout.com/abcd", title, "some random content")
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}.to_not change { Topic.all.count }
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end
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it "creates the topic with the tag passed as a parameter" do
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Jobs.run_immediately!
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SiteSetting.tagging_enabled = true
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imported_post =
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TopicEmbed.import(
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user,
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"http://eviltrout.com/abcd",
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title,
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"some random content",
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tags: [tag.name],
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)
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expect(imported_post.topic.tags).to include(tag)
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end
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it "respects overriding the cook_method when asked" do
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Jobs.run_immediately!
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SiteSetting.embed_support_markdown = false
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stub_request(:get, "https://www.youtube.com/watch?v=K56soYl0U1w").to_return(
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status: 200,
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body: "",
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headers: {
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},
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)
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stub_request(:get, "https://www.youtube.com/embed/K56soYl0U1w").to_return(
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status: 200,
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body: "",
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headers: {
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},
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)
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imported_post =
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TopicEmbed.import(
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user,
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"http://eviltrout.com/abcd",
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title,
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"https://www.youtube.com/watch?v=K56soYl0U1w",
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cook_method: Post.cook_methods[:regular],
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)
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expect(imported_post.cooked).to match(/onebox|iframe/)
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end
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describe "topic_embed_import_create_args modifier" do
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after { DiscoursePluginRegistry.clear_modifiers! }
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it "can alter the args used to create the topic" do
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plugin = Plugin::Instance.new
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plugin.register_modifier(:topic_embed_import_create_args) do |args|
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args[:title] = "MODIFIED: #{args[:title]}"
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args
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end
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Jobs.run_immediately!
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imported_post =
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TopicEmbed.import(
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user,
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"http://eviltrout.com/abcd",
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title,
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"some random content",
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category_id: category.id,
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)
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expect(imported_post.topic.title).to eq("MODIFIED: #{title}")
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end
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it "will revert to defaults if the modifier returns nil" do
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plugin = Plugin::Instance.new
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plugin.register_modifier(:topic_embed_import_create_args) { |args| nil }
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Jobs.run_immediately!
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imported_post =
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TopicEmbed.import(
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user,
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"http://eviltrout.com/abcd",
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title,
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"some random content",
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category_id: category.id,
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)
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expect(imported_post.topic.title).to eq(title)
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end
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end
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end
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context "when post creation supports markdown rendering" do
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before { SiteSetting.embed_support_markdown = true }
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it "works as expected" do
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post = TopicEmbed.import(user, url, title, "some random content")
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expect(post).to be_present
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# It uses regular rendering
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expect(post.cook_method).to eq(Post.cook_methods[:regular])
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end
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end
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describe "embedded content truncation" do
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MAX_LENGTH_BEFORE_TRUNCATION = 100
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let(:long_content) { "<p>#{"a" * MAX_LENGTH_BEFORE_TRUNCATION}</p>\n<p>more</p>" }
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it "truncates the imported post when truncation is enabled" do
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SiteSetting.embed_truncate = true
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post = TopicEmbed.import(user, url, title, long_content)
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expect(post.raw).not_to include(long_content)
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end
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it "keeps everything in the imported post when truncation is disabled" do
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SiteSetting.embed_truncate = false
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post = TopicEmbed.import(user, url, title, long_content)
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expect(post.raw).to include(long_content)
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end
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it "looks at first div when there is no paragraph" do
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no_para = "<div><h>testing it</h></div>"
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SiteSetting.embed_truncate = true
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post = TopicEmbed.import(user, url, title, no_para)
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expect(post.raw).to include("testing it")
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end
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end
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end
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describe ".topic_id_for_embed" do
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it "returns correct topic id irrespective of url protocol" do
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topic_embed = Fabricate(:topic_embed, embed_url: "http://example.com/post/248")
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expect(TopicEmbed.topic_id_for_embed("http://exAMPle.com/post/248")).to eq(
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topic_embed.topic_id,
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)
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expect(TopicEmbed.topic_id_for_embed("https://example.com/post/248/")).to eq(
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topic_embed.topic_id,
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)
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expect(TopicEmbed.topic_id_for_embed("http://example.com/post/248/2")).to eq(nil)
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expect(TopicEmbed.topic_id_for_embed("http://examples.com/post/248")).to eq(nil)
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expect(TopicEmbed.topic_id_for_embed("http://example.com/post/24")).to eq(nil)
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expect(TopicEmbed.topic_id_for_embed("http://example.com/post")).to eq(nil)
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end
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it "finds the topic id when the embed_url contains a query string" do
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topic_embed = Fabricate(:topic_embed, embed_url: "http://example.com/post/248?key=foo")
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expect(TopicEmbed.topic_id_for_embed("http://example.com/post/248?key=foo")).to eq(
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topic_embed.topic_id,
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)
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end
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end
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describe ".find_remote" do
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fab!(:embeddable_host)
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describe ".title_scrub" do
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let(:url) { "http://eviltrout.com/123" }
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let(:contents) do
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"<title>Through the Looking Glass - Classic Books</title><body>some content here</body>"
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end
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before { stub_request(:get, url).to_return(status: 200, body: contents) }
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it "doesn't scrub the title by default" do
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response = TopicEmbed.find_remote(url)
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expect(response.title).to eq("Through the Looking Glass - Classic Books")
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end
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it "scrubs the title when the option is enabled" do
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SiteSetting.embed_title_scrubber = " - Classic Books$"
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response = TopicEmbed.find_remote(url)
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expect(response.title).to eq("Through the Looking Glass")
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end
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it "doesn't follow redirect when making request" do
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FinalDestination.any_instance.stubs(:resolve).returns(URI("https://redirect.com"))
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stub_request(:get, "https://redirect.com/").to_return(
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status: 301,
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body: "<title>Moved permanently</title>",
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headers: {
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"Location" => "https://www.example.org/",
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},
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)
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response = TopicEmbed.find_remote(url)
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expect(response.title).to eq("Moved permanently")
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end
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end
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context 'with post with allowed classes "foo" and "emoji"' do
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fab!(:user)
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let(:url) { "http://eviltrout.com/123" }
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let(:contents) do
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"my normal size emoji <p class='foo'>Hi</p> <img class='emoji other foo' src='/images/smiley.jpg'>"
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end
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before do
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SiteSetting.allowed_embed_classnames = "emoji, foo"
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stub_request(:get, url).to_return(status: 200, body: contents)
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@response = TopicEmbed.find_remote(url)
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end
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it "has no author tag" do
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expect(@response.author).to be_blank
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end
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it "img node has emoji class" do
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expect(@response.body).to have_tag("img", with: { class: "emoji" })
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end
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it "img node has foo class" do
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expect(@response.body).to have_tag("img", with: { class: "foo" })
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end
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it "p node has foo class" do
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expect(@response.body).to have_tag("p", with: { class: "foo" })
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end
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it "nodes removes classes other than emoji" do
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expect(@response.body).to have_tag("img", without: { class: "other" })
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end
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end
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context "with post with author metadata" do
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fab!(:user) { Fabricate(:user, username: "eviltrout") }
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let(:url) { "http://eviltrout.com/321" }
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let(:contents) do
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'<html><head><meta name="author" content="eviltrout"></head><body>rich and morty</body></html>'
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end
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before(:each) { stub_request(:get, url).to_return(status: 200, body: contents) }
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it "has no author tag" do
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response = TopicEmbed.find_remote(url)
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expect(response.author).to eq(user)
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end
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end
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context "with post with no allowed classes" do
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fab!(:user)
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let(:url) { "http://eviltrout.com/123" }
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let(:contents) do
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"my normal size emoji <p class='foo'>Hi</p> <img class='emoji other foo' src='/images/smiley.jpg'>"
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end
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before(:each) do
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SiteSetting.allowed_embed_classnames = ""
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stub_request(:get, url).to_return(status: 200, body: contents)
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@response = TopicEmbed.find_remote(url)
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end
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it 'img node doesn\'t have emoji class' do
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expect(@response.body).to have_tag("img", without: { class: "emoji" })
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end
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it 'img node doesn\'t have foo class' do
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expect(@response.body).to have_tag("img", without: { class: "foo" })
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end
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it 'p node doesn\'t foo class' do
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expect(@response.body).to have_tag("p", without: { class: "foo" })
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end
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it 'img node doesn\'t have other class' do
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expect(@response.body).to have_tag("img", without: { class: "other" })
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end
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end
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context "with non-ascii URL" do
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let(:url) { "http://eviltrout.com/test/ماهی" }
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let(:contents) { "<title>سلام</title><body>این یک پاراگراف آزمون است.</body>" }
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before { stub_request(:get, url).to_return(status: 200, body: contents) }
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it "doesn't throw an error" do
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response = TopicEmbed.find_remote(url)
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expect(response.title).to eq("سلام")
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end
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end
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context "with encoded URL" do
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let(:url) { "http://example.com/hello%20world" }
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let(:contents) { "<title>Hello World!</title><body></body>" }
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before { stub_request(:get, url).to_return(status: 200, body: contents) }
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it "doesn't throw an error" do
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response = TopicEmbed.find_remote(url)
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expect(response.title).to eq("Hello World!")
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end
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end
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context "with non-http URL" do
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it "throws an error" do
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url = "/test.txt"
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expect(TopicEmbed.find_remote(url)).to be_nil
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end
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end
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context "with emails" do
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let(:url) { "http://example.com/foo" }
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let(:contents) do
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'<p><a href="mailto:foo%40example.com">URL encoded @ symbol</a></p><p><a href="mailto:bar@example.com">normal mailto link</a></p>'
|
||
end
|
||
|
||
before { stub_request(:get, url).to_return(status: 200, body: contents) }
|
||
|
||
it "handles mailto links" do
|
||
response = TopicEmbed.find_remote(url)
|
||
|
||
expect(response.body).to have_tag("a", with: { href: "mailto:foo@example.com" })
|
||
expect(response.body).to have_tag("a", with: { href: "mailto:bar@example.com" })
|
||
end
|
||
end
|
||
|
||
context "with malformed href" do
|
||
let(:url) { "http://example.com/foo" }
|
||
let(:contents) { '<p><a href="(http://foo.bar)">Baz</a></p>' }
|
||
|
||
before { stub_request(:get, url).to_return(status: 200, body: contents) }
|
||
|
||
it "doesn’t raise an exception" do
|
||
expect { TopicEmbed.find_remote(url) }.not_to raise_error
|
||
end
|
||
end
|
||
|
||
context "with canonical links" do
|
||
fab!(:user)
|
||
let(:title) { "How to turn a fish from good to evil in 30 seconds" }
|
||
let(:url) { "http://eviltrout.com/123?asd" }
|
||
let(:canonical_url) { "http://eviltrout.com/123" }
|
||
let(:url2) { "http://eviltrout.com/blog?post=1&canonical=false" }
|
||
let(:canonical_url2) { "http://eviltrout.com/blog?post=1" }
|
||
let(:content) { "<head><link rel=\"canonical\" href=\"#{canonical_url}\"></head>" }
|
||
let(:content2) { "<head><link rel=\"canonical\" href=\"#{canonical_url2}\"></head>" }
|
||
let(:canonical_content) { "<title>Canonical</title><body></body>" }
|
||
|
||
before do
|
||
stub_request(:get, url).to_return(status: 200, body: content)
|
||
stub_request(:head, canonical_url)
|
||
stub_request(:get, canonical_url).to_return(status: 200, body: canonical_content)
|
||
|
||
stub_request(:get, url2).to_return(status: 200, body: content2)
|
||
stub_request(:head, canonical_url2)
|
||
stub_request(:get, canonical_url2).to_return(status: 200, body: canonical_content)
|
||
end
|
||
|
||
it "fetches canonical content" do
|
||
response = TopicEmbed.find_remote(url)
|
||
|
||
expect(response.title).to eq("Canonical")
|
||
expect(response.url).to eq(canonical_url)
|
||
end
|
||
|
||
it "does not create duplicate topics when url differs from canonical_url" do
|
||
Jobs.run_immediately!
|
||
expect { TopicEmbed.import_remote(canonical_url, { title: title, user: user }) }.to change {
|
||
Topic.all.count
|
||
}.by(1)
|
||
|
||
expect { TopicEmbed.import_remote(url, { title: title, user: user }) }.to_not change {
|
||
Topic.all.count
|
||
}
|
||
end
|
||
|
||
it "does not create duplicate topics when url contains extra params" do
|
||
Jobs.run_immediately!
|
||
expect {
|
||
TopicEmbed.import_remote(canonical_url2, { title: title, user: user })
|
||
}.to change { Topic.all.count }.by(1)
|
||
|
||
expect { TopicEmbed.import_remote(url2, { title: title, user: user }) }.to_not change {
|
||
Topic.all.count
|
||
}
|
||
end
|
||
end
|
||
end
|
||
|
||
describe ".absolutize_urls" do
|
||
it "handles badly formed URIs" do
|
||
invalid_url = "http://source.com/#double#anchor"
|
||
contents = "hello world new post <a href='/hello'>hello</a>"
|
||
|
||
raw = TopicEmbed.absolutize_urls(invalid_url, contents)
|
||
expect(raw).to eq("hello world new post <a href=\"http://source.com/hello\">hello</a>")
|
||
end
|
||
|
||
it "handles malformed links" do
|
||
url = "https://somesource.com"
|
||
|
||
contents = <<~HTML
|
||
hello world new post <a href="mailto:somemail@somewhere.org>">hello</a>
|
||
some image <img src="https:/><invalidimagesrc/">
|
||
HTML
|
||
|
||
raw = TopicEmbed.absolutize_urls(url, contents)
|
||
expect(raw).to eq(contents)
|
||
end
|
||
end
|
||
|
||
describe ".imported_from_html" do
|
||
after { I18n.reload! }
|
||
|
||
it "uses the default site locale for the 'imported_from' footer" do
|
||
TranslationOverride.upsert!(
|
||
"en",
|
||
"embed.imported_from",
|
||
"English translation of embed.imported_from with %{link}",
|
||
)
|
||
TranslationOverride.upsert!(
|
||
"de",
|
||
"embed.imported_from",
|
||
"German translation of embed.imported_from with %{link}",
|
||
)
|
||
|
||
I18n.locale = :en
|
||
expected_html = TopicEmbed.imported_from_html("some_url")
|
||
|
||
I18n.locale = :de
|
||
expect(TopicEmbed.imported_from_html("some_url")).to eq(expected_html)
|
||
end
|
||
|
||
it "normalize_encodes the url" do
|
||
html =
|
||
TopicEmbed.imported_from_html(
|
||
'http://www.discourse.org/%23<%2Fa><img%20src%3Dx%20onerror%3Dalert("document.domain")%3B>',
|
||
)
|
||
expected_html =
|
||
"\n<hr>\n<small>This is a companion discussion topic for the original entry at <a href='http://www.discourse.org/%23%3C/a%3E%3Cimg%20src=x%20onerror=alert(%22document.domain%22);%3E'>http://www.discourse.org/%23%3C/a%3E%3Cimg%20src=x%20onerror=alert(%22document.domain%22);%3E</a></small>\n"
|
||
expect(html).to eq(expected_html)
|
||
end
|
||
end
|
||
|
||
describe ".expanded_for" do
|
||
fab!(:user)
|
||
let(:title) { "How to turn a fish from good to evil in 30 seconds" }
|
||
let(:url) { "http://eviltrout.com/123" }
|
||
let(:contents) { "<p>hello world new post :D</p>" }
|
||
fab!(:embeddable_host)
|
||
fab!(:category)
|
||
fab!(:tag)
|
||
|
||
it "returns embed content" do
|
||
stub_request(:get, url).to_return(status: 200, body: contents)
|
||
post = TopicEmbed.import(user, url, title, contents)
|
||
expect(TopicEmbed.expanded_for(post)).to include(contents)
|
||
end
|
||
|
||
it "updates the embed content cache" do
|
||
stub_request(:get, url)
|
||
.to_return(status: 200, body: contents)
|
||
.then
|
||
.to_return(status: 200, body: "contents changed")
|
||
post = TopicEmbed.import(user, url, title, contents)
|
||
TopicEmbed.expanded_for(post)
|
||
expect(post.topic.topic_embed.reload.embed_content_cache).to include("contents changed")
|
||
end
|
||
end
|
||
end
|