136 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			136 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			Ruby
		
	
	
	
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::OtherMarkup, feature_category: :wiki do
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  let(:context) { {} }
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  context 'when restructured text' do
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    it 'renders' do
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      input = <<~RST
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        Header
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        ======
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        *emphasis*; **strong emphasis**; `interpreted text`
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      RST
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      output = <<~HTML
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        <h1>Header</h1>
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        <p><em>emphasis</em>; <strong>strong emphasis</strong>; <cite>interpreted text</cite></p>
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      HTML
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      expect(render('unimportant_name.rst', input, context)).to include(output.strip)
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    end
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    context 'when PlantUML is enabled' do
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      it 'generates the diagram' do
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        Gitlab::CurrentSettings.current_application_settings.update!(plantuml_enabled: true, plantuml_url: 'https://plantuml.com/plantuml')
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        input = <<~RST
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          .. plantuml::
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                 :caption: Caption with **bold** and *italic*
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                 Bob -> Alice: hello
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                 Alice -> Bob: hi
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        RST
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        output = <<~HTML
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          <img class="plantuml" src="https://plantuml.com/plantuml/png/U9npoazIqBLJSCp9J4wrKiX8pSd9vm9pGA9E-Kb0iKm0o4SAt000" data-diagram="plantuml" data-diagram-src="data:text/plain;base64,Qm9iIC0+IEFsaWNlOiBoZWxsbwpBbGljZSAtPiBCb2I6IGhp">
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          <p>Caption with <strong>bold</strong> and <em>italic</em></p>
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        HTML
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        expect(render('unimportant_name.rst', input, context)).to include(output.strip)
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      end
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    end
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  end
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  context 'XSS Checks' do
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    links = {
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      'links' => {
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        file: 'file.rdoc',
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        input: 'XSS[JaVaScriPt:alert(1)]',
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        output: "\n" + '<p><a>XSS</a></p>' + "\n"
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      }
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    }
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    links.each do |name, data|
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      it "does not convert dangerous #{name} into HTML" do
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        expect(render(data[:file], data[:input], context)).to eq(data[:output])
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      end
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    end
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  end
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  context 'when mediawiki content' do
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    links = {
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      'p' => {
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        file: 'file.mediawiki',
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        input: 'Red Bridge (JRuby Embed)',
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        output: "\n<p>Red Bridge (JRuby Embed)</p>"
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      },
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      'h1' => {
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        file: 'file.mediawiki',
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        input: '= Red Bridge (JRuby Embed) =',
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        output: "\n\n<h1>\n<a name=\"Red_Bridge_JRuby_Embed\"></a><span>Red Bridge (JRuby Embed)</span>\n</h1>\n"
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      },
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      'h2' => {
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        file: 'file.mediawiki',
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        input: '== Red Bridge (JRuby Embed) ==',
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        output: "\n\n<h2>\n<a name=\"Red_Bridge_JRuby_Embed\"></a><span>Red Bridge (JRuby Embed)</span>\n</h2>\n"
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      }
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    }
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    links.each do |name, data|
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      it "does render into #{name} element" do
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        expect(render(data[:file], data[:input], context)).to eq(data[:output])
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      end
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    end
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  end
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  context 'when rendering takes too long' do
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    let_it_be(:file_name) { 'foo.bar' }
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    let_it_be(:project) { create(:project, :repository) }
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    let_it_be(:context) { { project: project } }
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    let_it_be(:text) { +'Noël' }
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    before do
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      stub_const('Gitlab::OtherMarkup::RENDER_TIMEOUT', 0.1)
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      allow(GitHub::Markup).to receive(:render) do
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        sleep(0.2)
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        text
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      end
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    end
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    it 'times out' do
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      # expect 2 times because of timeout in SyntaxHighlightFilter
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      expect(Gitlab::RenderTimeout).to receive(:timeout).twice.and_call_original
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      expect(Gitlab::ErrorTracking).to receive(:track_exception).with(
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        instance_of(Timeout::Error),
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        project_id: context[:project].id, file_name: file_name,
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        class_name: described_class.name.demodulize
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      )
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      expect(render(file_name, text, context)).to eq("<p>#{text}</p>")
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    end
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  end
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  context 'RedCloth markup' do
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    it 'renders textile correctly' do
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      test_text = '"This is *my* text."'
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      expected_res = "<p>“This is <strong>my</strong> text.”</p>"
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      expect(RedCloth.new(test_text).to_html).to eq(expected_res)
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    end
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    it 'protects against malicious backtracking' do
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      test_text = '<A' + ('A' * 54773)
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      expect do
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        Timeout.timeout(Gitlab::OtherMarkup::RENDER_TIMEOUT.seconds) do
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          RedCloth.new(test_text, [:sanitize_html]).to_html
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        end
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      end.not_to raise_error
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    end
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  end
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  def render(...)
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    described_class.render(...)
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  end
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end
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