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46fc45de99
Problem mentioned in [meta](https://meta.discourse.org/t/inbound-links-dont-show-up-when-topic-id-is-not-included/100551) When there is an internal link without ID, only slug, we should still try to create reflection link.
437 lines
14 KiB
Ruby
437 lines
14 KiB
Ruby
# frozen_string_literal: true
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require 'rails_helper'
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describe TopicLink do
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it { is_expected.to validate_presence_of :url }
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def test_uri
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URI.parse(Discourse.base_url)
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end
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fab!(:topic) do
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Fabricate(:topic, title: 'unique topic name')
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end
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fab!(:user) do
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topic.user
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end
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fab!(:post) { Fabricate(:post) }
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it "can't link to the same topic" do
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ftl = TopicLink.new(url: "/t/#{topic.id}",
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topic_id: topic.id,
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link_topic_id: topic.id)
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expect(ftl.valid?).to eq(false)
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end
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describe 'external links' do
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fab!(:post2) do
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Fabricate(:post, raw: <<~RAW, user: user, topic: topic)
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http://a.com/
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https://b.com/b
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http://#{'a' * 200}.com/invalid
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//b.com/#{'a' * 500}
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RAW
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end
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before do
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TopicLink.extract_from(post2)
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end
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it 'works' do
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expect(topic.topic_links.pluck(:url)).to contain_exactly(
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"http://a.com/",
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"https://b.com/b",
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"//b.com/#{'a' * 500}"[0...TopicLink.max_url_length]
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)
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end
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it "doesn't reset them when rebaking" do
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old_ids = topic.topic_links.pluck(:id)
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TopicLink.extract_from(post2)
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new_ids = topic.topic_links.pluck(:id)
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expect(new_ids).to contain_exactly(*old_ids)
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end
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end
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describe 'internal links' do
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it "extracts onebox" do
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other_topic = Fabricate(:topic, user: user)
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other_topic.posts.create(user: user, raw: "some content for the first post")
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other_post = other_topic.posts.create(user: user, raw: "some content for the second post")
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url = "http://#{test_uri.host}/t/#{other_topic.slug}/#{other_topic.id}/#{other_post.post_number}"
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invalid_url = "http://#{test_uri.host}/t/#{other_topic.slug}/9999999999999999999999999999999"
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topic.posts.create(user: user, raw: 'initial post')
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post = topic.posts.create(user: user, raw: "Link to another topic:\n\n#{url}\n\n#{invalid_url}")
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post.reload
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TopicLink.extract_from(post)
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link = topic.topic_links.first
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# should have a link
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expect(link).to be_present
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# should be the canonical URL
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expect(link.url).to eq(url)
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end
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context 'topic link' do
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fab!(:other_topic) do
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Fabricate(:topic, user: user)
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end
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let(:post) do
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other_topic.posts.create(user: user, raw: "some content")
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end
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it 'works' do
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# ensure other_topic has a post
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post
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url = "http://#{test_uri.host}/t/#{other_topic.slug}/#{other_topic.id}"
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topic.posts.create(user: user, raw: 'initial post')
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linked_post = topic.posts.create(user: user, raw: "Link to another topic: #{url}")
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# this is subtle, but we had a bug were second time
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# TopicLink.extract_from was called a reflection was nuked
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2.times do
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topic.reload
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TopicLink.extract_from(linked_post)
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link = topic.topic_links.first
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expect(link).to be_present
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expect(link).to be_internal
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expect(link.url).to eq(url)
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expect(link.domain).to eq(test_uri.host)
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link.link_topic_id == other_topic.id
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expect(link).not_to be_reflection
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reflection = other_topic.topic_links.first
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expect(reflection).to be_present
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expect(reflection).to be_reflection
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expect(reflection.post_id).to be_present
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expect(reflection.domain).to eq(test_uri.host)
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expect(reflection.url).to eq("http://#{test_uri.host}/t/unique-topic-name/#{topic.id}/#{linked_post.post_number}")
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expect(reflection.link_topic_id).to eq(topic.id)
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expect(reflection.link_post_id).to eq(linked_post.id)
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expect(reflection.user_id).to eq(link.user_id)
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end
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PostOwnerChanger.new(
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post_ids: [linked_post.id],
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topic_id: topic.id,
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acting_user: user,
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new_owner: Fabricate(:user)
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).change_owner!
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TopicLink.extract_from(linked_post)
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expect(topic.topic_links.first.url).to eq(url)
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linked_post.revise(post.user, raw: "no more linkies https://eviltrout.com")
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expect(other_topic.reload.topic_links.where(link_post_id: linked_post.id)).to be_blank
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end
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it 'works without id' do
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post
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url = "http://#{test_uri.host}/t/#{other_topic.slug}"
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topic.posts.create(user: user, raw: 'initial post')
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linked_post = topic.posts.create(user: user, raw: "Link to another topic: #{url}")
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TopicLink.extract_from(linked_post)
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link = topic.topic_links.first
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reflection = other_topic.topic_links.first
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expect(reflection).to be_present
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expect(reflection).to be_reflection
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expect(reflection.post_id).to be_present
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expect(reflection.domain).to eq(test_uri.host)
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expect(reflection.url).to eq("http://#{test_uri.host}/t/unique-topic-name/#{topic.id}/#{linked_post.post_number}")
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expect(reflection.link_topic_id).to eq(topic.id)
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expect(reflection.link_post_id).to eq(linked_post.id)
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expect(reflection.user_id).to eq(link.user_id)
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end
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end
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context "link to a user on discourse" do
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let(:post) { topic.posts.create(user: user, raw: "<a href='/u/#{user.username_lower}'>user</a>") }
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before do
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TopicLink.extract_from(post)
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end
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it 'does not extract a link' do
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expect(topic.topic_links).to be_blank
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end
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end
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context "link to a discourse resource like a FAQ" do
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let(:post) { topic.posts.create(user: user, raw: "<a href='/faq'>faq link here</a>") }
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before do
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TopicLink.extract_from(post)
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end
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it 'does not extract a link' do
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expect(topic.topic_links).to be_present
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end
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end
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context "mention links" do
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let(:post) { topic.posts.create(user: user, raw: "Hey #{user.username_lower}") }
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before do
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TopicLink.extract_from(post)
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end
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it 'does not extract a link' do
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expect(topic.topic_links).to be_blank
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end
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end
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context "email address" do
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it "does not extract a link" do
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post = topic.posts.create(user: user, raw: "Valid email: foo@bar.com\n\nInvalid email: rfc822;name@domain.com")
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TopicLink.extract_from(post)
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expect(topic.topic_links).to be_blank
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end
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end
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context "mail link" do
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let(:post) { topic.posts.create(user: user, raw: "[email]bar@example.com[/email]") }
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it 'does not extract a link' do
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TopicLink.extract_from(post)
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expect(topic.topic_links).to be_blank
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end
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end
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context "quote links" do
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it "sets quote correctly" do
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linked_post = topic.posts.create(user: user, raw: "my test post")
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quoting_post = Fabricate(:post, raw: "[quote=\"#{user.username}, post: #{linked_post.post_number}, topic: #{topic.id}\"]\nquote\n[/quote]")
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TopicLink.extract_from(quoting_post)
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link = quoting_post.topic.topic_links.first
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expect(link.link_post_id).to eq(linked_post.id)
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expect(link.quote).to eq(true)
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end
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end
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context "link to a local attachments" do
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let(:post) { topic.posts.create(user: user, raw: '<a class="attachment" href="/uploads/default/208/87bb3d8428eb4783.rb?foo=bar">ruby.rb</a>') }
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it "extracts the link" do
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TopicLink.extract_from(post)
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link = topic.topic_links.first
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# extracted the link
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expect(link).to be_present
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# is set to internal
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expect(link).to be_internal
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# has the correct url
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expect(link.url).to eq("/uploads/default/208/87bb3d8428eb4783.rb?foo=bar")
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# should not be the reflection
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expect(link).not_to be_reflection
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# should have file extension
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expect(link.extension).to eq('rb')
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end
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end
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context "link to an attachments uploaded on S3" do
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let(:post) { topic.posts.create(user: user, raw: '<a class="attachment" href="//s3.amazonaws.com/bucket/2104a0211c9ce41ed67989a1ed62e9a394c1fbd1446.rb">ruby.rb</a>') }
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it "extracts the link" do
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TopicLink.extract_from(post)
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link = topic.topic_links.first
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# extracted the link
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expect(link).to be_present
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# is not internal
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expect(link).not_to be_internal
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# has the correct url
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expect(link.url).to eq("//s3.amazonaws.com/bucket/2104a0211c9ce41ed67989a1ed62e9a394c1fbd1446.rb")
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# should not be the reflection
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expect(link).not_to be_reflection
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# should have file extension
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expect(link.extension).to eq('rb')
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end
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end
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end
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describe 'internal link from pm' do
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it 'works' do
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pm = Fabricate(:topic, user: user, category_id: nil, archetype: 'private_message')
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pm.posts.create(user: user, raw: "some content")
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url = "http://#{test_uri.host}/t/topic-slug/#{topic.id}"
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pm.posts.create(user: user, raw: 'initial post')
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linked_post = pm.posts.create(user: user, raw: "Link to another topic: #{url}")
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TopicLink.extract_from(linked_post)
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expect(topic.topic_links.first).to eq(nil)
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expect(pm.topic_links.first).not_to eq(nil)
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end
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end
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describe 'internal link from unlisted topic' do
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it 'works' do
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unlisted_topic = Fabricate(:topic, user: user, visible: false)
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url = "http://#{test_uri.host}/t/topic-slug/#{topic.id}"
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unlisted_topic.posts.create(user: user, raw: 'initial post')
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linked_post = unlisted_topic.posts.create(user: user, raw: "Link to another topic: #{url}")
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TopicLink.extract_from(linked_post)
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expect(topic.topic_links.first).to eq(nil)
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expect(unlisted_topic.topic_links.first).not_to eq(nil)
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end
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end
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describe 'internal link with non-standard port' do
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it 'includes the non standard port if present' do
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other_topic = Fabricate(:topic, user: user)
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SiteSetting.port = 5678
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alternate_uri = URI.parse(Discourse.base_url)
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url = "http://#{alternate_uri.host}:5678/t/topic-slug/#{other_topic.id}"
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post = topic.posts.create(user: user, raw: "Link to another topic: #{url}")
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TopicLink.extract_from(post)
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reflection = other_topic.topic_links.first
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expect(reflection.url).to eq("http://#{alternate_uri.host}:5678/t/unique-topic-name/#{topic.id}")
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end
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end
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describe 'query methods' do
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it 'returns blank without posts' do
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expect(TopicLink.counts_for(Guardian.new, nil, nil)).to be_blank
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end
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context 'with data' do
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let(:post) do
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topic = Fabricate(:topic)
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Fabricate(:post_with_external_links, user: topic.user, topic: topic)
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end
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let(:counts_for) do
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TopicLink.counts_for(Guardian.new, post.topic, [post])
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end
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it 'creates a valid topic lookup' do
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TopicLink.extract_from(post)
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lookup = TopicLink.duplicate_lookup(post.topic)
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expect(lookup).to be_present
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expect(lookup['google.com']).to be_present
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ch = lookup['www.codinghorror.com/blog']
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expect(ch).to be_present
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expect(ch[:domain]).to eq('www.codinghorror.com')
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expect(ch[:username]).to eq(post.username)
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expect(ch[:posted_at]).to be_present
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expect(ch[:post_number]).to be_present
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end
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it 'has the correct results' do
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TopicLink.extract_from(post)
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topic_link_first = post.topic.topic_links.first
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TopicLinkClick.create!(topic_link: topic_link_first, ip_address: '192.168.1.1')
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TopicLinkClick.create!(topic_link: topic_link_first, ip_address: '192.168.1.2')
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topic_link_second = post.topic.topic_links.second
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TopicLinkClick.create!(topic_link: topic_link_second, ip_address: '192.168.1.1')
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expect(counts_for[post.id]).to be_present
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expect(counts_for[post.id].first[:clicks]).to eq(2)
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expect(counts_for[post.id].second[:clicks]).to eq(1)
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array = TopicLink.topic_map(Guardian.new, post.topic_id)
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expect(array.length).to eq(2)
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expect(array[0].clicks).to eq(2)
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expect(array[1].clicks).to eq(1)
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end
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it 'secures internal links correctly' do
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category = Fabricate(:category)
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secret_topic = Fabricate(:topic, category: category)
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url = "http://#{test_uri.host}/t/topic-slug/#{secret_topic.id}"
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post = Fabricate(:post, raw: "hello test topic #{url}")
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TopicLink.extract_from(post)
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TopicLinkClick.create!(topic_link: post.topic.topic_links.first, ip_address: '192.168.1.1')
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expect(TopicLink.topic_map(Guardian.new, post.topic_id).count).to eq(1)
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expect(TopicLink.counts_for(Guardian.new, post.topic, [post]).length).to eq(1)
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category.set_permissions(staff: :full)
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category.save
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admin = Fabricate(:admin)
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expect(TopicLink.topic_map(Guardian.new, post.topic_id).count).to eq(0)
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expect(TopicLink.topic_map(Guardian.new(admin), post.topic_id).count).to eq(1)
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expect(TopicLink.counts_for(Guardian.new, post.topic, [post]).length).to eq(0)
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expect(TopicLink.counts_for(Guardian.new(admin), post.topic, [post]).length).to eq(1)
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end
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it 'does not include links from whisper' do
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url = "https://blog.codinghorror.com/hacker-hack-thyself/"
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post = Fabricate(:post, raw: "whisper post... #{url}", post_type: Post.types[:whisper])
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TopicLink.extract_from(post)
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expect(TopicLink.topic_map(Guardian.new, post.topic_id).count).to eq(0)
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end
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end
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describe ".duplicate_lookup" do
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fab!(:user) { Fabricate(:user, username: "junkrat") }
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let(:post_with_internal_link) do
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Fabricate(:post, user: user, raw: "Check out this topic #{post.topic.url}/122131")
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end
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it "should return the right response" do
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TopicLink.extract_from(post_with_internal_link)
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result = TopicLink.duplicate_lookup(post_with_internal_link.topic)
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expect(result.count).to eq(1)
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lookup = result["test.localhost/t/#{post.topic.slug}/#{post.topic.id}/122131"]
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expect(lookup[:domain]).to eq("test.localhost")
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expect(lookup[:username]).to eq("junkrat")
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expect(lookup[:posted_at].to_s).to eq(post_with_internal_link.created_at.to_s)
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expect(lookup[:post_number]).to eq(1)
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result = TopicLink.duplicate_lookup(post.topic)
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expect(result).to eq({})
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end
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end
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it "works with invalid link target" do
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post = Fabricate(:post, raw: '<a href="http:geturl">http:geturl</a>', user: user, topic: topic, cook_method: Post.cook_methods[:raw_html])
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expect { TopicLink.extract_from(post) }.to_not raise_error
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end
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end
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end
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