# frozen_string_literal: true require 'rails_helper' require 'stringio' describe TopicEmbed do it { is_expected.to belong_to :topic } it { is_expected.to belong_to :post } it { is_expected.to validate_presence_of :embed_url } context '.import' do fab!(:user) { Fabricate(:user) } let(:title) { "How to turn a fish from good to evil in 30 seconds" } let(:url) { 'http://eviltrout.com/123' } let(:contents) { "hello world new post hello " } fab!(:embeddable_host) { Fabricate(:embeddable_host) } it "returns nil when the URL is malformed" do expect(TopicEmbed.import(user, "invalid url", title, contents)).to eq(nil) expect(TopicEmbed.count).to eq(0) end context 'creation of a post' do let!(:post) { TopicEmbed.import(user, url, title, contents) } let(:topic_embed) { TopicEmbed.find_by(post: post) } it "works as expected with a new URL" do expect(post).to be_present # It uses raw_html rendering expect(post.cook_method).to eq(Post.cook_methods[:raw_html]) expect(post.cooked).to eq(post.raw) # It converts relative URLs to absolute expect(post.cooked).to have_tag('a', with: { href: 'http://eviltrout.com/hello' }) expect(post.cooked).to have_tag('img', with: { src: 'http://eviltrout.com/images/wat.jpg' }) expect(post.topic.has_topic_embed?).to eq(true) expect(TopicEmbed.where(topic_id: post.topic_id)).to be_present expect(post.topic.category).to eq(embeddable_host.category) end it "Supports updating the post content" do expect do TopicEmbed.import(user, url, title, "muhahaha new contents!") end.to change { topic_embed.reload.content_sha1 } expect(topic_embed.post.cooked).to match(/new contents/) end it "Supports updating the post author" do new_user = Fabricate(:user) TopicEmbed.import(new_user, url, title, contents) topic_embed.reload expect(topic_embed.post.user).to eq(new_user) expect(topic_embed.post.topic.user).to eq(new_user) end it "Should leave uppercase Feed Entry URL untouched in content" do cased_url = 'http://eviltrout.com/ABCD' post = TopicEmbed.import(user, cased_url, title, "some random content") expect(post.cooked).to match(/#{cased_url}/) end it "Should leave lowercase Feed Entry URL untouched in content" do cased_url = 'http://eviltrout.com/abcd' post = TopicEmbed.import(user, cased_url, title, "some random content") expect(post.cooked).to match(/#{cased_url}/) end end context "post creation supports markdown rendering" do before do SiteSetting.embed_support_markdown = true end it "works as expected" do post = TopicEmbed.import(user, url, title, "some random content") expect(post).to be_present # It uses regular rendering expect(post.cook_method).to eq(Post.cook_methods[:regular]) end end end context '.topic_id_for_embed' do it "returns correct topic id irrespective of url protocol" do topic_embed = Fabricate(:topic_embed, embed_url: "http://example.com/post/248") expect(TopicEmbed.topic_id_for_embed('http://exAMPle.com/post/248')).to eq(topic_embed.topic_id) expect(TopicEmbed.topic_id_for_embed('https://example.com/post/248/')).to eq(topic_embed.topic_id) expect(TopicEmbed.topic_id_for_embed('http://example.com/post/248/2')).to eq(nil) expect(TopicEmbed.topic_id_for_embed('http://examples.com/post/248')).to eq(nil) expect(TopicEmbed.topic_id_for_embed('http://example.com/post/24')).to eq(nil) expect(TopicEmbed.topic_id_for_embed('http://example.com/post')).to eq(nil) end it "finds the topic id when the embed_url contains a query string" do topic_embed = Fabricate(:topic_embed, embed_url: "http://example.com/post/248?key=foo") expect(TopicEmbed.topic_id_for_embed('http://example.com/post/248?key=foo')).to eq(topic_embed.topic_id) end end describe '.find_remote' do context ".title_scrub" do let(:url) { 'http://eviltrout.com/123' } let(:contents) { "Through the Looking Glass - Classic Bookssome content here" } fab!(:embeddable_host) { Fabricate(:embeddable_host) } let!(:file) { StringIO.new } before do file.stubs(:read).returns contents TopicEmbed.stubs(:open).returns file end it "doesn't scrub the title by default" do response = TopicEmbed.find_remote(url) expect(response.title).to eq("Through the Looking Glass - Classic Books") end it "scrubs the title when the option is enabled" do SiteSetting.embed_title_scrubber = " - Classic Books$" response = TopicEmbed.find_remote(url) expect(response.title).to eq("Through the Looking Glass") end end context 'post with allowed classes "foo" and "emoji"' do fab!(:user) { Fabricate(:user) } let(:url) { 'http://eviltrout.com/123' } let(:contents) { "my normal size emoji

Hi

" } fab!(:embeddable_host) { Fabricate(:embeddable_host) } let!(:file) { StringIO.new } response = nil before do SiteSetting.embed_classname_whitelist = 'emoji, foo' file.stubs(:read).returns contents TopicEmbed.stubs(:open).returns file response = TopicEmbed.find_remote(url) end it "has no author tag" do expect(response.author).to be_blank end it 'img node has emoji class' do expect(response.body).to have_tag('img', with: { class: 'emoji' }) end it 'img node has foo class' do expect(response.body).to have_tag('img', with: { class: 'foo' }) end it 'p node has foo class' do expect(response.body).to have_tag('p', with: { class: 'foo' }) end it 'nodes removes classes other than emoji' do expect(response.body).to have_tag('img', without: { class: 'other' }) end end context 'post with author metadata' do fab!(:user) { Fabricate(:user, username: 'eviltrout') } let(:url) { 'http://eviltrout.com/321' } let(:contents) { 'rich and morty' } fab!(:embeddable_host) { Fabricate(:embeddable_host) } let!(:file) { StringIO.new } response = nil before(:each) do file.stubs(:read).returns contents TopicEmbed.stubs(:open).returns file response = TopicEmbed.find_remote(url) end it "has no author tag" do expect(response.author).to eq(user) end end context 'post with no allowed classes' do fab!(:user) { Fabricate(:user) } let(:url) { 'http://eviltrout.com/123' } let(:contents) { "my normal size emoji

Hi

" } fab!(:embeddable_host) { Fabricate(:embeddable_host) } let!(:file) { StringIO.new } response = nil before(:each) do SiteSetting.embed_classname_whitelist = '' file.stubs(:read).returns contents TopicEmbed.stubs(:open).returns file response = TopicEmbed.find_remote(url) end it 'img node doesn\'t have emoji class' do expect(response.body).to have_tag('img', without: { class: 'emoji' }) end it 'img node doesn\'t have foo class' do expect(response.body).to have_tag('img', without: { class: 'foo' }) end it 'p node doesn\'t foo class' do expect(response.body).to have_tag('p', without: { class: 'foo' }) end it 'img node doesn\'t have other class' do expect(response.body).to have_tag('img', without: { class: 'other' }) end end context "non-ascii URL" do let(:url) { 'http://eviltrout.com/test/ماهی' } let(:contents) { "سلاماین یک پاراگراف آزمون است." } fab!(:embeddable_host) { Fabricate(:embeddable_host) } let!(:file) { StringIO.new } before do file.stubs(:read).returns contents TopicEmbed.stubs(:open) .with('http://eviltrout.com/test/%D9%85%D8%A7%D9%87%DB%8C', allow_redirections: :safe).returns file end it "doesn't throw an error" do response = TopicEmbed.find_remote(url) expect(response.title).to eq("سلام") end end context "encoded URL" do let(:url) { 'http://example.com/hello%20world' } let(:contents) { "Hello World!" } fab!(:embeddable_host) { Fabricate(:embeddable_host) } let!(:file) { StringIO.new } before do file.stubs(:read).returns contents TopicEmbed.stubs(:open) .with('http://example.com/hello%20world', allow_redirections: :safe).returns file end it "doesn't throw an error" do response = TopicEmbed.find_remote(url) expect(response.title).to eq("Hello World!") end end context "emails" do let(:url) { 'http://example.com/foo' } let(:contents) { '

URL encoded @ symbol

normal mailto link

' } fab!(:embeddable_host) { Fabricate(:embeddable_host) } let!(:file) { StringIO.new } before do file.stubs(:read).returns contents TopicEmbed.stubs(:open).returns file end it "handles mailto links" do response = TopicEmbed.find_remote(url) expect(response.body).to have_tag('a', with: { href: 'mailto:foo%40example.com' }) expect(response.body).to have_tag('a', with: { href: 'mailto:bar@example.com' }) end end end end