Rationalize Sanitizer Tests
This commit is contained in:
Jacques Distler
parent
a68d1aa8f3
commit
6b2ec7354b
250
vendor/plugins/HTML5lib/tests/test_sanitizer.rb
vendored
250
vendor/plugins/HTML5lib/tests/test_sanitizer.rb
vendored
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@ -12,140 +12,148 @@ class SanitizeTest < Test::Unit::TestCase
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include HTML5lib
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def sanitize_xhtml stream
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XHTMLParser.parseFragment(stream, {:tokenizer => HTMLSanitizer, :encoding => 'utf-8'}).join('').gsub(/'/,'"')
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XHTMLParser.parseFragment(stream, {:tokenizer => HTMLSanitizer, :encoding => 'utf-8'}).to_s
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end
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def sanitize_html stream
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HTMLParser.parseFragment(stream, {:tokenizer => HTMLSanitizer, :encoding => 'utf-8'}).join('').gsub(/'/,'"')
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HTMLParser.parseFragment(stream, {:tokenizer => HTMLSanitizer, :encoding => 'utf-8'}).to_s
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end
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def sanitize_rexml stream
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require 'rexml/document'
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doc = REXML::Document.new("<div xmlns=\"http://www.w3.org/1999/xhtml\">#{stream}</div>")
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doc = REXML::Document.new("<div xmlns='http://www.w3.org/1999/xhtml'>#{stream}</div>")
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tokens = TreeWalkers.getTreeWalker('rexml').new(doc)
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HTMLSerializer.serialize(tokens, {:encoding=>'utf-8',
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:quote_attr_values => true,
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:quote_char => "'",
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:minimize_boolean_attributes => false,
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:use_trailing_solidus => true,
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:omit_optional_tags => false,
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:inject_meta_charset => false,
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:sanitize => true}).gsub(/^<div xmlns="http:\/\/www.w3.org\/1999\/xhtml">(.*)<\/div>$/, '\1')
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:sanitize => true}).gsub(/^<div xmlns='http:\/\/www.w3.org\/1999\/xhtml'>(.*)<\/div>$/, '\1')
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rescue
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return "Ill-formed XHTML!"
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end
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def check_sanitization(input, htmloutput, xhtmloutput, rexmloutput)
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assert_equal htmloutput, sanitize_html(input)
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assert_equal xhtmloutput, sanitize_xhtml(input)
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assert_equal rexmloutput, sanitize_rexml(input)
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end
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HTMLSanitizer::ALLOWED_ELEMENTS.each do |tag_name|
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next if %w[caption col colgroup optgroup option table tbody td tfoot th thead tr].include?(tag_name) ### TODO
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define_method "test_should_allow_#{tag_name}_tag" do
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input = "<#{tag_name} title='1'>foo <bad>bar</bad> baz</#{tag_name}>"
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htmloutput = "<#{tag_name.downcase} title='1'>foo <bad>bar</bad> baz</#{tag_name.downcase}>"
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xhtmloutput = "<#{tag_name} title='1'>foo <bad>bar</bad> baz</#{tag_name}>"
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rexmloutput = xhtmloutput
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if tag_name == 'image'
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assert_equal "<img title=\"1\"/>foo <bad>bar</bad> baz",
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sanitize_html("<#{tag_name} title='1'>foo <bad>bar</bad> baz</#{tag_name}>")
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htmloutput = "<img title='1'/>foo <bad>bar</bad> baz"
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xhtmloutput = htmloutput
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rexmloutput = "<image title='1'>foo <bad>bar</bad> baz</image>"
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elsif VOID_ELEMENTS.include?(tag_name)
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assert_equal "<#{tag_name} title=\"1\"/>foo <bad>bar</bad> baz",
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sanitize_html("<#{tag_name} title='1'>foo <bad>bar</bad> baz</#{tag_name}>")
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else
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assert_equal "<#{tag_name.downcase} title=\"1\">foo <bad>bar</bad> baz</#{tag_name.downcase}>",
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sanitize_html("<#{tag_name} title='1'>foo <bad>bar</bad> baz</#{tag_name}>")
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assert_equal "<#{tag_name} title=\"1\">foo <bad>bar</bad> baz</#{tag_name}>",
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sanitize_xhtml("<#{tag_name} title='1'>foo <bad>bar</bad> baz</#{tag_name}>")
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assert_equal "<#{tag_name} title=\"1\">foo <bad>bar</bad> baz</#{tag_name}>",
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sanitize_rexml("<#{tag_name} title='1'>foo <bad>bar</bad> baz</#{tag_name}>")
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htmloutput = "<#{tag_name} title='1'/>foo <bad>bar</bad> baz"
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xhtmloutput = htmloutput
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rexmloutput = "<#{tag_name} title='1' />"
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end
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check_sanitization(input, htmloutput, xhtmloutput, rexmloutput)
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end
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end
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HTMLSanitizer::ALLOWED_ELEMENTS.each do |tag_name|
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define_method "test_should_forbid_#{tag_name.upcase}_tag" do
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assert_equal "<#{tag_name.upcase} title=\"1\">foo <bad>bar</bad> baz</#{tag_name.upcase}>",
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sanitize_html("<#{tag_name.upcase} title='1'>foo <bad>bar</bad> baz</#{tag_name.upcase}>")
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assert_equal "<#{tag_name.upcase} title=\"1\">foo <bad>bar</bad> baz</#{tag_name.upcase}>",
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sanitize_rexml("<#{tag_name.upcase} title='1'>foo <bad>bar</bad> baz</#{tag_name.upcase}>")
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input = "<#{tag_name.upcase} title='1'>foo <bad>bar</bad> baz</#{tag_name.upcase}>"
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output = "<#{tag_name.upcase} title=\"1\">foo <bad>bar</bad> baz</#{tag_name.upcase}>"
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check_sanitization(input, output, output, output)
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end
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end
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HTMLSanitizer::ALLOWED_ATTRIBUTES.each do |attribute_name|
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next if attribute_name == 'style'
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define_method "test_should_allow_#{attribute_name}_attribute" do
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assert_equal "<p #{attribute_name.downcase}=\"foo\">foo <bad>bar</bad> baz</p>",
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sanitize_html("<p #{attribute_name}='foo'>foo <bad>bar</bad> baz</p>")
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assert_equal "<p #{attribute_name}=\"foo\">foo <bad>bar</bad> baz</p>",
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sanitize_xhtml("<p #{attribute_name}='foo'>foo <bad>bar</bad> baz</p>")
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assert_equal "<p #{attribute_name}=\"foo\">foo <bad>bar</bad> baz</p>",
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sanitize_rexml("<p #{attribute_name}='foo'>foo <bad>bar</bad> baz</p>")
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input = "<p #{attribute_name}='foo'>foo <bad>bar</bad> baz</p>"
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output = "<p #{attribute_name}='foo'>foo <bad>bar</bad> baz</p>"
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htmloutput = "<p #{attribute_name.downcase}='foo'>foo <bad>bar</bad> baz</p>"
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check_sanitization(input, htmloutput, output, output)
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end
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end
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HTMLSanitizer::ALLOWED_ATTRIBUTES.each do |attribute_name|
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define_method "test_should_forbid_#{attribute_name.upcase}_attribute" do
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assert_equal "<p>foo <bad>bar</bad> baz</p>",
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sanitize_html("<p #{attribute_name.upcase}='display: none;'>foo <bad>bar</bad> baz</p>")
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assert_equal "<p>foo <bad>bar</bad> baz</p>",
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sanitize_rexml("<p #{attribute_name.upcase}='display: none;'>foo <bad>bar</bad> baz</p>")
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input = "<p #{attribute_name.upcase}='display: none;'>foo <bad>bar</bad> baz</p>"
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output = "<p>foo <bad>bar</bad> baz</p>"
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check_sanitization(input, output, output, output)
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end
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end
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HTMLSanitizer::ALLOWED_PROTOCOLS.each do |protocol|
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define_method "test_should_allow_#{protocol}_uris" do
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assert_equal "<a href=\"#{protocol}\">foo</a>",
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sanitize_html(%(<a href="#{protocol}">foo</a>))
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assert_equal "<a href=\"#{protocol}\">foo</a>",
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sanitize_rexml(%(<a href="#{protocol}">foo</a>))
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input = %(<a href="#{protocol}">foo</a>)
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output = "<a href='#{protocol}'>foo</a>"
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check_sanitization(input, output, output, output)
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end
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end
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HTMLSanitizer::ALLOWED_PROTOCOLS.each do |protocol|
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define_method "test_should_allow_uppercase_#{protocol}_uris" do
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assert_equal "<a href=\"#{protocol.upcase}\">foo</a>",
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sanitize_html(%(<a href="#{protocol.upcase}">foo</a>))
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assert_equal "<a href=\"#{protocol.upcase}\">foo</a>",
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sanitize_rexml(%(<a href="#{protocol.upcase}">foo</a>))
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input = %(<a href="#{protocol.upcase}">foo</a>)
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output = "<a href='#{protocol.upcase}'>foo</a>"
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check_sanitization(input, output, output, output)
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end
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end
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def test_should_allow_anchors
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assert_equal "<a href=\"foo\"><script>baz</script></a>",
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sanitize_html("<a href='foo' onclick='bar'><script>baz</script></a>")
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assert_equal "<a href=\"foo\"><script>baz</script></a>",
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sanitize_rexml("<a href='foo' onclick='bar'><script>baz</script></a>")
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input = "<a href='foo' onclick='bar'><script>baz</script></a>"
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output = "<a href='foo'><script>baz</script></a>"
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check_sanitization(input, output, output, output)
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end
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# RFC 3986, sec 4.2
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def test_allow_colons_in_path_component
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assert_equal "<a href=\"./this:that\">foo</a>",
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sanitize_html("<a href=\"./this:that\">foo</a>")
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assert_equal "<a href=\"./this:that\">foo</a>",
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sanitize_rexml("<a href=\"./this:that\">foo</a>")
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input = "<a href=\"./this:that\">foo</a>"
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output = "<a href='./this:that'>foo</a>"
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check_sanitization(input, output, output, output)
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end
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%w(src width height alt).each do |img_attr|
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define_method "test_should_allow_image_#{img_attr}_attribute" do
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assert_equal "<img #{img_attr}=\"foo\"/>",
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sanitize_html("<img #{img_attr}='foo' onclick='bar' />")
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assert_equal "<img #{img_attr}=\"foo\" />",
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sanitize_rexml("<img #{img_attr}='foo' onclick='bar' />")
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input = "<img #{img_attr}='foo' onclick='bar' />"
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output = "<img #{img_attr}='foo'/>"
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rexmloutput = "<img #{img_attr}='foo' />"
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check_sanitization(input, output, output, rexmloutput)
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end
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end
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def test_should_handle_non_html
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assert_equal 'abc', sanitize_html("abc")
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assert_equal 'abc', sanitize_rexml("abc")
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input = 'abc'
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output = 'abc'
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check_sanitization(input, output, output, output)
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end
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def test_should_handle_blank_text
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assert_equal '', sanitize_html('')
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assert_equal '', sanitize_rexml('')
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input = ''
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output = ''
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check_sanitization(input, output, output, output)
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end
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[%w(img src), %w(a href)].each do |(tag, attr)|
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close = VOID_ELEMENTS.include?(tag) ? "/>boo" : ">boo</#{tag}>"
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xclose = VOID_ELEMENTS.include?(tag) ? " />" : ">boo</#{tag}>"
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input = %(<#{tag} #{attr}="javascript:XSS" title="1">boo</#{tag}>)
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output = %(<#{tag} title='1'#{close})
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rexmloutput = %(<#{tag} title='1'#{xclose})
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define_method "test_should_strip_#{attr}_attribute_in_#{tag}_with_bad_protocols" do
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assert_equal %(<#{tag} title="1"#{close}), sanitize_html(%(<#{tag} #{attr}="javascript:XSS" title="1">boo</#{tag}>))
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assert_equal %(<#{tag} title="1"#{xclose}), sanitize_rexml(%(<#{tag} #{attr}="javascript:XSS" title="1">boo</#{tag}>))
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check_sanitization(input, output, output, rexmloutput)
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end
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define_method "test_should_strip_#{attr}_attribute_in_#{tag}_with_bad_protocols_and_whitespace" do
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assert_equal %(<#{tag} title="1"#{close}), sanitize_html(%(<#{tag} #{attr}=" javascript:XSS" title="1">boo</#{tag}>))
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assert_equal %(<#{tag} title="1"#{xclose}), sanitize_rexml(%(<#{tag} #{attr}=" javascript:XSS" title="1">boo</#{tag}>))
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input = %(<#{tag} #{attr}=" javascript:XSS" title="1">boo</#{tag}>)
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output = %(<#{tag} title='1'#{close})
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rexmloutput = %(<#{tag} title='1'#{xclose})
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check_sanitization(input, output, output, rexmloutput)
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end
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end
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@ -165,103 +173,129 @@ class SanitizeTest < Test::Unit::TestCase
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%(<img src=" javascript:alert('XSS');" />),
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%(<img src=" javascript:alert('XSS');" />)].each_with_index do |img_hack, i|
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define_method "test_should_not_fall_for_xss_image_hack_#{i}" do
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assert_equal "<img/>", sanitize_html(img_hack)
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output = "<img/>"
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rexmloutput = "<img />"
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rexmloutput = "Ill-formed XHTML!" if i == 1
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check_sanitization(img_hack, output, output, rexmloutput)
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end
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end
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def test_should_sanitize_tag_broken_up_by_null
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assert_equal "<scr\357\277\275ipt>alert(\"XSS\")</scr\357\277\275ipt>", sanitize_html(%(<scr\0ipt>alert(\"XSS\")</scr\0ipt>))
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input = %(<scr\0ipt>alert(\"XSS\")</scr\0ipt>)
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output = "<scr\357\277\275ipt>alert(\"XSS\")</scr\357\277\275ipt>"
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rexmloutput = "Ill-formed XHTML!"
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check_sanitization(input, output, output, rexmloutput)
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end
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def test_should_sanitize_invalid_script_tag
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assert_equal "<script XSS=\"\" SRC=\"http://ha.ckers.org/xss.js\"></script>", sanitize_html(%(<script/XSS SRC="http://ha.ckers.org/xss.js"></script>))
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input = %(<script/XSS SRC="http://ha.ckers.org/xss.js"></script>)
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output = "<script XSS=\"\" SRC=\"http://ha.ckers.org/xss.js\"></script>"
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rexmloutput = "Ill-formed XHTML!"
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check_sanitization(input, output, output, rexmloutput)
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end
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def test_should_sanitize_script_tag_with_multiple_open_brackets
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assert_equal "<<script>alert(\"XSS\");//<</script>", sanitize_html(%(<<script>alert("XSS");//<</script>))
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assert_equal %(<iframe src=\"http://ha.ckers.org/scriptlet.html\"><), sanitize_html(%(<iframe src=http://ha.ckers.org/scriptlet.html\n<))
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input = %(<<script>alert("XSS");//<</script>)
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output = "<<script>alert(\"XSS\");//<</script>"
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rexmloutput = "Ill-formed XHTML!"
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check_sanitization(input, output, output, rexmloutput)
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input = %(<iframe src=http://ha.ckers.org/scriptlet.html\n<)
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output = %(<iframe src=\"http://ha.ckers.org/scriptlet.html\"><)
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rexmloutput = "Ill-formed XHTML!"
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check_sanitization(input, output, output, rexmloutput)
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end
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def test_should_sanitize_unclosed_script
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assert_equal "<script src=\"http://ha.ckers.org/xss.js?\"><b/>", sanitize_html(%(<script src=http://ha.ckers.org/xss.js?<b>))
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input = %(<script src=http://ha.ckers.org/xss.js?<b>)
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output = "<script src=\"http://ha.ckers.org/xss.js?\"><b/>"
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rexmloutput = "Ill-formed XHTML!"
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check_sanitization(input, output, output, rexmloutput)
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end
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def test_should_sanitize_half_open_scripts
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assert_equal "<img/>", sanitize_html(%(<img src="javascript:alert('XSS')"))
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input = %(<img src="javascript:alert('XSS')")
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output = "<img/>"
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rexmloutput = "Ill-formed XHTML!"
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check_sanitization(input, output, output, rexmloutput)
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end
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def test_should_not_fall_for_ridiculous_hack
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img_hack = %(<img\nsrc\n=\n"\nj\na\nv\na\ns\nc\nr\ni\np\nt\n:\na\nl\ne\nr\nt\n(\n'\nX\nS\nS\n'\n)\n"\n />)
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assert_equal "<img/>", sanitize_html(img_hack)
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assert_equal "<img />", sanitize_rexml(img_hack)
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output = "<img/>"
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rexmloutput = "<img />"
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check_sanitization(img_hack, output, output, rexmloutput)
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end
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def test_platypus
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assert_equal %(<a href=\"http://www.ragingplatypus.com/\" style=\"display: block; width: 100%; height: 100%; background-color: black; background-x: center; background-y: center;\">never trust your upstream platypus</a>),
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sanitize_html(%(<a href="http://www.ragingplatypus.com/" style="display:block; position:absolute; left:0; top:0; width:100%; height:100%; z-index:1; background-color:black; background-image:url(http://www.ragingplatypus.com/i/cam-full.jpg); background-x:center; background-y:center; background-repeat:repeat;">never trust your upstream platypus</a>))
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assert_equal %(<a href=\"http://www.ragingplatypus.com/\" style=\"display: block; width: 100%; height: 100%; background-color: black; background-x: center; background-y: center;\">never trust your upstream platypus</a>),
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sanitize_rexml(%(<a href="http://www.ragingplatypus.com/" style="display:block; position:absolute; left:0; top:0; width:100%; height:100%; z-index:1; background-color:black; background-image:url(http://www.ragingplatypus.com/i/cam-full.jpg); background-x:center; background-y:center; background-repeat:repeat;">never trust your upstream platypus</a>))
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input = %(<a href="http://www.ragingplatypus.com/" style="display:block; position:absolute; left:0; top:0; width:100%; height:100%; z-index:1; background-color:black; background-image:url(http://www.ragingplatypus.com/i/cam-full.jpg); background-x:center; background-y:center; background-repeat:repeat;">never trust your upstream platypus</a>)
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output = %(<a href='http://www.ragingplatypus.com/' style='display: block; width: 100%; height: 100%; background-color: black; background-x: center; background-y: center;'>never trust your upstream platypus</a>)
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check_sanitization(input, output, output, output)
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end
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def test_xul
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assert_equal %(<p style="">fubar</p>),
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sanitize_html(%(<p style="-moz-binding:url('http://ha.ckers.org/xssmoz.xml#xss')">fubar</p>))
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assert_equal %(<p style="">fubar</p>),
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sanitize_rexml(%(<p style="-moz-binding:url('http://ha.ckers.org/xssmoz.xml#xss')">fubar</p>))
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input = %(<p style="-moz-binding:url('http://ha.ckers.org/xssmoz.xml#xss')">fubar</p>)
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output = %(<p style=''>fubar</p>)
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check_sanitization(input, output, output, output)
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end
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def test_input_image
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assert_equal %(<input type="image"/>),
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sanitize_html(%(<input type="image" src="javascript:alert('XSS');" />))
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assert_equal %(<input type="image" />),
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sanitize_rexml(%(<input type="image" src="javascript:alert('XSS');" />))
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input = %(<input type="image" src="javascript:alert('XSS');" />)
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output = %(<input type='image'/>)
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rexmloutput = %(<input type='image' />)
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check_sanitization(input, output, output, rexmloutput)
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end
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def test_non_alpha_non_digit
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assert_equal "<script XSS=\"\" src=\"http://ha.ckers.org/xss.js\"></script>",
|
||||
sanitize_html(%(<script/XSS src="http://ha.ckers.org/xss.js"></script>))
|
||||
assert_equal "<a>foo</a>",
|
||||
sanitize_html('<a onclick!#$%&()*~+-_.,:;?@[/|\]^`=alert("XSS")>foo</a>')
|
||||
assert_equal "<img src=\"http://ha.ckers.org/xss.js\"/>",
|
||||
sanitize_html('<img/src="http://ha.ckers.org/xss.js"/>')
|
||||
input = %(<script/XSS src="http://ha.ckers.org/xss.js"></script>)
|
||||
output = "<script XSS=\"\" src=\"http://ha.ckers.org/xss.js\"></script>"
|
||||
rexmloutput = "Ill-formed XHTML!"
|
||||
check_sanitization(input, output, output, rexmloutput)
|
||||
|
||||
input = '<a onclick!#$%&()*~+-_.,:;?@[/|\]^`=alert("XSS")>foo</a>'
|
||||
output = "<a>foo</a>"
|
||||
rexmloutput = "Ill-formed XHTML!"
|
||||
check_sanitization(input, output, output, rexmloutput)
|
||||
|
||||
input = '<img/src="http://ha.ckers.org/xss.js"/>'
|
||||
output = "<img src='http://ha.ckers.org/xss.js'/>"
|
||||
rexmloutput = "Ill-formed XHTML!"
|
||||
check_sanitization(input, output, output, rexmloutput)
|
||||
end
|
||||
|
||||
def test_img_dynsrc_lowsrc
|
||||
assert_equal "<img/>",
|
||||
sanitize_html(%(<img dynsrc="javascript:alert('XSS')" />))
|
||||
assert_equal "<img />",
|
||||
sanitize_rexml(%(<img dynsrc="javascript:alert('XSS')" />))
|
||||
input = %(<img dynsrc="javascript:alert('XSS')" />)
|
||||
output = "<img/>"
|
||||
rexmloutput = "<img />"
|
||||
check_sanitization(input, output, output, rexmloutput)
|
||||
end
|
||||
|
||||
def test_div_background_image_unicode_encoded
|
||||
assert_equal '<div style="">foo</div>',
|
||||
sanitize_html(%(<div style="background-image:\0075\0072\006C\0028'\006a\0061\0076\0061\0073\0063\0072\0069\0070\0074\003a\0061\006c\0065\0072\0074\0028.1027\0058.1053\0053\0027\0029'\0029">foo</div>))
|
||||
assert_equal '<div style="">foo</div>',
|
||||
sanitize_rexml(%(<div style="background-image:\0075\0072\006C\0028'\006a\0061\0076\0061\0073\0063\0072\0069\0070\0074\003a\0061\006c\0065\0072\0074\0028.1027\0058.1053\0053\0027\0029'\0029">foo</div>))
|
||||
input = %(<div style="background-image:\0075\0072\006C\0028'\006a\0061\0076\0061\0073\0063\0072\0069\0070\0074\003a\0061\006c\0065\0072\0074\0028.1027\0058.1053\0053\0027\0029'\0029">foo</div>)
|
||||
output = "<div style=''>foo</div>"
|
||||
check_sanitization(input, output, output, output)
|
||||
end
|
||||
|
||||
def test_div_expression
|
||||
assert_equal '<div style="">foo</div>',
|
||||
sanitize_html(%(<div style="width: expression(alert('XSS'));">foo</div>))
|
||||
assert_equal '<div style="">foo</div>',
|
||||
sanitize_rexml(%(<div style="width: expression(alert('XSS'));">foo</div>))
|
||||
input = %(<div style="width: expression(alert('XSS'));">foo</div>)
|
||||
output = "<div style=''>foo</div>"
|
||||
check_sanitization(input, output, output, output)
|
||||
end
|
||||
|
||||
def test_img_vbscript
|
||||
assert_equal '<img/>',
|
||||
sanitize_html(%(<img src='vbscript:msgbox("XSS")' />))
|
||||
assert_equal '<img />',
|
||||
sanitize_rexml(%(<img src='vbscript:msgbox("XSS")' />))
|
||||
input = %(<img src='vbscript:msgbox("XSS")' />)
|
||||
output = '<img/>'
|
||||
rexmloutput = '<img />'
|
||||
check_sanitization(input, output, output, rexmloutput)
|
||||
end
|
||||
|
||||
def test_should_handle_astral_plane_characters
|
||||
assert_equal "<p>\360\235\222\265 \360\235\224\270</p>",
|
||||
sanitize_html("<p>𝒵 𝔸</p>")
|
||||
assert_equal "<p>\360\235\222\265 \360\235\224\270</p>",
|
||||
sanitize_rexml("<p>𝒵 𝔸</p>")
|
||||
assert_equal "<p><tspan>\360\235\224\270</tspan> a</p>",
|
||||
sanitize_html("<p><tspan>\360\235\224\270</tspan> a</p>")
|
||||
assert_equal "<p><tspan>\360\235\224\270</tspan> a</p>",
|
||||
sanitize_rexml("<p><tspan>\360\235\224\270</tspan> a</p>")
|
||||
input = "<p>𝒵 𝔸</p>"
|
||||
output = "<p>\360\235\222\265 \360\235\224\270</p>"
|
||||
check_sanitization(input, output, output, output)
|
||||
|
||||
input = "<p><tspan>\360\235\224\270</tspan> a</p>"
|
||||
output = "<p><tspan>\360\235\224\270</tspan> a</p>"
|
||||
check_sanitization(input, output, output, output)
|
||||
end
|
||||
end
|
||||
|
|
|
|||
Loading…
Reference in a new issue