File: test_clean_css.rb

package info (click to toggle)
ruby-sanitize 5.2.1-2%2Bdeb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 336 kB
  • sloc: ruby: 2,869; makefile: 5
file content (67 lines) | stat: -rw-r--r-- 1,684 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
# encoding: utf-8
require_relative 'common'

describe 'Sanitize::Transformers::CSS::CleanAttribute' do
  make_my_diffs_pretty!
  parallelize_me!

  before do
    @s = Sanitize.new(Sanitize::Config::RELAXED)
  end

  it 'should sanitize CSS properties in style attributes' do
    @s.fragment(%[
      <div style="color: #fff; width: expression(alert(1)); /* <-- evil! */"></div>
    ].strip).must_equal %[
      <div style="color: #fff;  /* <-- evil! */"></div>
    ].strip
  end

  it 'should remove the style attribute if the sanitized CSS is empty' do
    @s.fragment('<div style="width: expression(alert(1))"></div>').
      must_equal '<div></div>'
  end
end

describe 'Sanitize::Transformers::CSS::CleanElement' do
  make_my_diffs_pretty!
  parallelize_me!

  before do
    @s = Sanitize.new(Sanitize::Config::RELAXED)
  end

  it 'should sanitize CSS stylesheets in <style> elements' do
    html = %[
      <style>@import url(evil.css);
      /* Yay CSS! */
      .foo { color: #fff; }
      #bar { background: url(yay.jpg); bogus: wtf; }
      .evil { width: expression(xss()); }

      @media screen (max-width:480px) {
        .foo { width: 400px; }
        #bar:not(.baz) { height: 100px; }
      }
      </style>
    ].strip

    @s.fragment(html).must_equal %[
      <style>
      /* Yay CSS! */
      .foo { color: #fff; }
      #bar { background: url(yay.jpg);  }
      .evil {  }

      @media screen (max-width:480px) {
        .foo { width: 400px; }
        #bar:not(.baz) { height: 100px; }
      }
      </style>
    ].strip
  end

  it 'should remove the <style> element if the sanitized CSS is empty' do
    @s.fragment('<style></style>').must_equal ''
  end
end