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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Banzai::Pipeline::FullPipeline do
describe 'References' do
let(:project) { create(:project, :public) }
let(:issue) { create(:issue, project: project) }
it 'handles markdown inside a reference' do
markdown = "[some `code` inside](#{issue.to_reference})"
result = described_class.call(markdown, project: project)
link_content = result[:output].css('a').inner_html
expect(link_content).to eq('some <code>code</code> inside')
end
it 'sanitizes reference HTML' do
link_label = '<script>bad things</script>'
markdown = "[#{link_label}](#{issue.to_reference})"
result = described_class.to_html(markdown, project: project)
expect(result).not_to include(link_label)
end
it 'escapes the data-original attribute on a reference' do
markdown = %Q{[">bad things](#{issue.to_reference})}
result = described_class.to_html(markdown, project: project)
expect(result).to include(%{data-original='\"&gt;bad things'})
end
end
describe 'footnotes' do
let(:project) { create(:project, :public) }
let(:html) { described_class.to_html(footnote_markdown, project: project) }
let(:identifier) { html[/.*fnref-1-(\d+).*/, 1] }
let(:footnote_markdown) do
<<~EOF
first[^1] and second[^😄second] and twenty[^_twenty]
[^1]: one
[^😄second]: two
[^_twenty]: twenty
EOF
end
let(:filtered_footnote) do
<<~EOF.strip_heredoc
<p dir="auto">first<sup class="footnote-ref"><a href="#fn-1-#{identifier}" id="fnref-1-#{identifier}" data-footnote-ref>1</a></sup> and second<sup class="footnote-ref"><a href="#fn-%F0%9F%98%84second-#{identifier}" id="fnref-%F0%9F%98%84second-#{identifier}" data-footnote-ref>2</a></sup> and twenty<sup class="footnote-ref"><a href="#fn-_twenty-#{identifier}" id="fnref-_twenty-#{identifier}" data-footnote-ref>3</a></sup></p>
<section data-footnotes class="footnotes">
<ol>
<li id="fn-1-#{identifier}">
<p>one <a href="#fnref-1-#{identifier}" data-footnote-backref aria-label="Back to content" class="footnote-backref"><gl-emoji title="leftwards arrow with hook" data-name="leftwards_arrow_with_hook" data-unicode-version="1.1">↩</gl-emoji></a></p>
</li>
<li id="fn-%F0%9F%98%84second-#{identifier}">
<p>two <a href="#fnref-%F0%9F%98%84second-#{identifier}" data-footnote-backref aria-label="Back to content" class="footnote-backref"><gl-emoji title="leftwards arrow with hook" data-name="leftwards_arrow_with_hook" data-unicode-version="1.1">↩</gl-emoji></a></p>
</li>
<li id="fn-_twenty-#{identifier}">
<p>twenty <a href="#fnref-_twenty-#{identifier}" data-footnote-backref aria-label="Back to content" class="footnote-backref"><gl-emoji title="leftwards arrow with hook" data-name="leftwards_arrow_with_hook" data-unicode-version="1.1">↩</gl-emoji></a></p>
</li>
</ol>
</section>
EOF
end
it 'properly adds the necessary ids and classes' do
stub_commonmark_sourcepos_disabled
expect(html.lines.map(&:strip).join("\n")).to eq filtered_footnote.strip
end
end
describe 'links are detected as malicious' do
it 'has tooltips for malicious links' do
examples = %W[
http://example.com/evil\u202E3pm.exe
[evilexe.mp3](http://example.com/evil\u202E3pm.exe)
rdar://localhost.com/\u202E3pm.exe
http://one😄two.com
[Evil-Test](http://one😄two.com)
http://\u0261itlab.com
[Evil-GitLab-link](http://\u0261itlab.com)
]
examples.each do |markdown|
result = described_class.call(markdown, project: nil)[:output]
link = result.css('a').first
expect(link[:class]).to include('has-tooltip')
end
end
it 'has no tooltips for safe links' do
examples = %w[
http://example.com
[Safe-Test](http://example.com)
https://commons.wikimedia.org/wiki/File:اسكرام_2_-_تمنراست.jpg
[Wikipedia-link](https://commons.wikimedia.org/wiki/File:اسكرام_2_-_تمنراست.jpg)
]
examples.each do |markdown|
result = described_class.call(markdown, project: nil)[:output]
link = result.css('a').first
expect(link[:class]).to be_nil
end
end
end
describe 'table of contents' do
let(:project) { create(:project, :public) }
shared_examples 'table of contents tag' do |tag, tag_html|
let(:markdown) do
<<-MARKDOWN.strip_heredoc
#{tag}
# Header
MARKDOWN
end
let(:invalid_markdown) do
<<-MARKDOWN.strip_heredoc
test #{tag}
# Header
MARKDOWN
end
it 'inserts a table of contents' do
output = described_class.to_html(markdown, project: project)
expect(output).to include("<ul class=\"section-nav\">")
expect(output).to include("<li><a href=\"#header\">Header</a></li>")
end
it 'does not insert a table of contents' do
output = described_class.to_html(invalid_markdown, project: project)
expect(output).to include("test #{tag_html}")
end
end
context 'with [[_TOC_]] as tag' do
it_behaves_like 'table of contents tag', '[[_TOC_]]', '[[<em>TOC</em>]]'
end
context 'with [toc] as tag' do
it_behaves_like 'table of contents tag', '[toc]', '[toc]'
it_behaves_like 'table of contents tag', '[TOC]', '[TOC]'
end
end
describe 'backslash escapes' do
let_it_be(:project) { create(:project, :public) }
let_it_be(:issue) { create(:issue, project: project) }
it 'does not convert an escaped reference' do
markdown = "\\#{issue.to_reference}"
output = described_class.to_html(markdown, project: project)
expect(output).to include("<span>#</span>#{issue.iid}")
end
it 'converts user reference with escaped underscore because of italics' do
markdown = '_@test\__'
output = described_class.to_html(markdown, project: project)
expect(output).to include('<em>@test_</em>')
end
end
describe 'cmark-gfm and autlolinks' do
it 'does not hang with significant number of unclosed image links' do
markdown = '