require 'spec_helper'
require 'nokogiri'
module Gitlab
describe Asciidoc do
include FakeBlobHelpers
before do
allow_any_instance_of(ApplicationSetting).to receive(:current).and_return(::ApplicationSetting.create_from_defaults)
end
context "without project" do
let(:input) { 'ascii' }
let(:context) { {} }
let(:html) { 'H2O' }
it "converts the input using Asciidoctor and default options" do
expected_asciidoc_opts = {
safe: :secure,
backend: :gitlab_html5,
attributes: described_class::DEFAULT_ADOC_ATTRS,
extensions: be_a(Proc)
}
expect(Asciidoctor).to receive(:convert)
.with(input, expected_asciidoc_opts).and_return(html)
expect(render(input, context)).to eq(html)
end
context "with asciidoc_opts" do
it "merges the options with default ones" do
expected_asciidoc_opts = {
safe: :secure,
backend: :gitlab_html5,
attributes: described_class::DEFAULT_ADOC_ATTRS,
extensions: be_a(Proc)
}
expect(Asciidoctor).to receive(:convert)
.with(input, expected_asciidoc_opts).and_return(html)
render(input, context)
end
end
context "XSS" do
items = {
'link with extra attribute' => {
input: 'link:mylink"onmouseover="alert(1)[Click Here]',
output: "
"
},
'link with unsafe scheme' => {
input: 'link:data://danger[Click Here]',
output: ""
},
'image with onerror' => {
input: 'image:https://localhost.com/image.png[Alt text" onerror="alert(7)]',
output: "\n
![Alt text\" onerror=\"alert(7)](\"https://localhost.com/image.png\")
\n
"
},
'fenced code with inline script' => {
input: '```mypre">',
output: ""
}
}
items.each do |name, data|
it "does not convert dangerous #{name} into HTML" do
expect(render(data[:input], context)).to include(data[:output])
end
end
end
context 'with admonition' do
it 'preserves classes' do
input = <<~ADOC
NOTE: An admonition paragraph, like this note, grabs the reader’s attention.
ADOC
output = <<~HTML
|
An admonition paragraph, like this note, grabs the reader’s attention.
|
HTML
expect(render(input, context)).to include(output.strip)
end
end
context 'with checklist' do
it 'preserves classes' do
input = <<~ADOC
* [x] checked
* [ ] not checked
ADOC
output = <<~HTML
HTML
expect(render(input, context)).to include(output.strip)
end
end
context 'with marks' do
it 'preserves classes' do
input = <<~ADOC
Werewolves are allergic to #cassia cinnamon#.
Did the werewolves read the [.small]#small print#?
Where did all the [.underline.small]#cores# run off to?
We need [.line-through]#ten# make that twenty VMs.
[.big]##O##nce upon an infinite loop.
ADOC
output = <<~HTML
Werewolves are allergic to cassia cinnamon.
Did the werewolves read the small print?
Where did all the cores run off to?
We need ten make that twenty VMs.
Once upon an infinite loop.
HTML
expect(render(input, context)).to include(output.strip)
end
end
context 'with fenced block' do
it 'highlights syntax' do
input = <<~ADOC
```js
console.log('hello world')
```
ADOC
output = <<~HTML
console.log('hello world')
HTML
expect(render(input, context)).to include(output.strip)
end
end
context 'with listing block' do
it 'highlights syntax' do
input = <<~ADOC
[source,c++]
.class.cpp
----
#include
for (int i = 0; i < 5; i++) {
std::cout<<"*"<
class.cpp
#include <stdio.h>
for (int i = 0; i < 5; i++) {
std::cout<<"*"<<std::endl;
}
HTML
expect(render(input, context)).to include(output.strip)
end
end
context 'with stem block' do
it 'does not apply syntax highlighting' do
input = <<~ADOC
[stem]
++++
\sqrt{4} = 2
++++
ADOC
output = "\n
\n\\$ qrt{4} = 2\\$\n
\n
"
expect(render(input, context)).to include(output)
end
end
context 'external links' do
it 'adds the `rel` attribute to the link' do
output = render('link:https://google.com[Google]', context)
expect(output).to include('rel="nofollow noreferrer noopener"')
end
end
context 'LaTex code' do
it 'adds class js-render-math to the output' do
input = <<~MD
:stem: latexmath
[stem]
++++
\sqrt{4} = 2
++++
another part
[latexmath]
++++
\beta_x \gamma
++++
stem:[2+2] is 4
MD
expect(render(input, context)).to include('eta_x gamma
')
expect(render(input, context)).to include('2+2
is 4
')
end
end
context 'outfilesuffix' do
it 'defaults to adoc' do
output = render("Inter-document reference <>", context)
expect(output).to include("a href=\"README.adoc\"")
end
end
end
context 'with project' do
let(:context) do
{
commit: commit,
project: project,
ref: ref,
requested_path: requested_path
}
end
let(:commit) { project.commit(ref) }
let(:project) { create(:project, :repository) }
let(:ref) { 'asciidoc' }
let(:requested_path) { '/' }
context 'include directive' do
subject(:output) { render(input, context) }
let(:input) { "Include this:\n\ninclude::#{include_path}[]" }
before do
current_file = requested_path
current_file += 'README.adoc' if requested_path.end_with? '/'
create_file(current_file, "= AsciiDoc\n")
end
context 'with path to non-existing file' do
let(:include_path) { 'not-exists.adoc' }
it 'renders Unresolved directive placeholder' do
is_expected.to include("[ERROR: include::#{include_path}[] - unresolved directive]")
end
end
shared_examples :invalid_include do
let(:include_path) { 'dk.png' }
before do
allow(project.repository).to receive(:blob_at).and_return(blob)
end
it 'does not read the blob' do
expect(blob).not_to receive(:data)
end
it 'renders Unresolved directive placeholder' do
is_expected.to include("[ERROR: include::#{include_path}[] - unresolved directive]")
end
end
context 'with path to a binary file' do
let(:blob) { fake_blob(path: 'dk.png', binary: true) }
include_examples :invalid_include
end
context 'with path to file in external storage' do
let(:blob) { fake_blob(path: 'dk.png', lfs: true) }
before do
allow(Gitlab.config.lfs).to receive(:enabled).and_return(true)
project.update_attribute(:lfs_enabled, true)
end
include_examples :invalid_include
end
context 'with path to a textual file' do
let(:include_path) { 'sample.adoc' }
before do
create_file(file_path, "Content from #{include_path}")
end
shared_examples :valid_include do
[
['/doc/sample.adoc', 'doc/sample.adoc', 'absolute path'],
['sample.adoc', 'doc/api/sample.adoc', 'relative path'],
['./sample.adoc', 'doc/api/sample.adoc', 'relative path with leading ./'],
['../sample.adoc', 'doc/sample.adoc', 'relative path to a file up one directory'],
['../../sample.adoc', 'sample.adoc', 'relative path for a file up multiple directories']
].each do |include_path_, file_path_, desc|
context "the file is specified by #{desc}" do
let(:include_path) { include_path_ }
let(:file_path) { file_path_ }
it 'includes content of the file' do
is_expected.to include('Include this:
')
is_expected.to include("Content from #{include_path}
")
end
end
end
end
context 'when requested path is a file in the repo' do
let(:requested_path) { 'doc/api/README.adoc' }
include_examples :valid_include
context 'without a commit (only ref)' do
let(:commit) { nil }
include_examples :valid_include
end
end
context 'when requested path is a directory in the repo' do
let(:requested_path) { 'doc/api/' }
include_examples :valid_include
context 'without a commit (only ref)' do
let(:commit) { nil }
include_examples :valid_include
end
end
end
context 'recursive includes with relative paths' do
let(:input) do
<<~ADOC
Source: requested file
include::doc/README.adoc[]
include::license.adoc[]
ADOC
end
before do
create_file 'doc/README.adoc', <<~ADOC
Source: doc/README.adoc
include::../license.adoc[]
include::api/hello.adoc[]
ADOC
create_file 'license.adoc', <<~ADOC
Source: license.adoc
ADOC
create_file 'doc/api/hello.adoc', <<~ADOC
Source: doc/api/hello.adoc
include::./common.adoc[]
ADOC
create_file 'doc/api/common.adoc', <<~ADOC
Source: doc/api/common.adoc
ADOC
end
it 'includes content of the included files recursively' do
expect(output.gsub(/<[^>]+>/, '').gsub(/\n\s*/, "\n").strip).to eq <<~ADOC.strip
Source: requested file
Source: doc/README.adoc
Source: license.adoc
Source: doc/api/hello.adoc
Source: doc/api/common.adoc
Source: license.adoc
ADOC
end
end
def create_file(path, content)
project.repository.create_file(project.creator, path, content,
message: "Add #{path}", branch_name: 'asciidoc')
end
end
end
def render(*args)
described_class.render(*args)
end
end
end