discourse/spec/models/topic_embed_spec.rb

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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
let(: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 <a href='/hello'>hello</a> <img src='/images/wat.jpg'>" }
let!(: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) }
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" do
post = TopicEmbed.import(user, url, title, "muhahaha new contents!")
expect(post.cooked).to match(/new contents/)
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
end
describe '.find_remote' do
context ".title_scrub" do
let(:url) { 'http://eviltrout.com/123' }
let(:contents) { "<title>Through the Looking Glass - Classic Books</title><body>some content here</body>" }
let!(: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
let(:user) { Fabricate(:user) }
let(:url) { 'http://eviltrout.com/123' }
let(:contents) { "my normal size emoji <p class='foo'>Hi</p> <img class='emoji other foo' src='/images/smiley.jpg'>" }
let!(: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
let!(:user) { Fabricate(:user, username: 'eviltrout') }
let(:url) { 'http://eviltrout.com/321' }
let(:contents) { '<html><head><meta name="author" content="eviltrout"></head><body>rich and morty</body></html>' }
let!(: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
let(:user) { Fabricate(:user) }
let(:url) { 'http://eviltrout.com/123' }
let(:contents) { "my normal size emoji <p class='foo'>Hi</p> <img class='emoji other foo' src='/images/smiley.jpg'>" }
let!(: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
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end
context "non-ascii URL" do
let(:url) { 'http://eviltrout.com/test/ماهی' }
let(:contents) { "<title>سلام</title><body>این یک پاراگراف آزمون است.</body>" }
let!(:embeddable_host) { Fabricate(:embeddable_host) }
let!(:file) { StringIO.new }
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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
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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) { "<title>Hello World!</title><body></body>" }
let!(: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) { '<p><a href="mailto:foo%40example.com">URL encoded @ symbol</a></p><p><a href="mailto:bar@example.com">normal mailto link</a></p>' }
let!(: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
context ".escape_uri" do
it "doesn't escape simple URL" do
url = TopicEmbed.escape_uri('http://example.com/foo/bar')
expect(url).to eq('http://example.com/foo/bar')
end
it "escapes unsafe chars" do
url = TopicEmbed.escape_uri("http://example.com/?a=\11\15")
expect(url).to eq('http://example.com/?a=%09%0D')
end
it "escapes non-ascii chars" do
url = TopicEmbed.escape_uri('http://example.com/ماهی')
expect(url).to eq('http://example.com/%D9%85%D8%A7%D9%87%DB%8C')
end
it "doesn't escape already escaped chars" do
url = TopicEmbed.escape_uri('http://example.com/foo%20bar/foo bar/')
expect(url).to eq('http://example.com/foo%20bar/foo%20bar/')
end
end
end