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blackfriday/sanitize_test.go

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6.0 KiB
Go
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package blackfriday
import (
"testing"
)
func doTestsSanitize(t *testing.T, tests []string) {
doTestsInlineParam(t, tests, 0, HTML_SKIP_STYLE|HTML_SANITIZE_OUTPUT)
}
func TestSanitizeRawHtmlTag(t *testing.T) {
tests := []string{
"zz <style>p {}</style>\n",
"<p>zz &lt;style&gt;p {}&lt;/style&gt;</p>\n",
"zz <STYLE>p {}</STYLE>\n",
"<p>zz &lt;style&gt;p {}&lt;/style&gt;</p>\n",
"<SCRIPT>alert()</SCRIPT>\n",
"<p>&lt;script&gt;alert()&lt;/script&gt;</p>\n",
"zz <SCRIPT>alert()</SCRIPT>\n",
"<p>zz &lt;script&gt;alert()&lt;/script&gt;</p>\n",
"zz <script>alert()</script>\n",
"<p>zz &lt;script&gt;alert()&lt;/script&gt;</p>\n",
" <script>alert()</script>\n",
"<p>&lt;script&gt;alert()&lt;/script&gt;</p>\n",
"<script>alert()</script>\n",
"&lt;script&gt;alert()&lt;/script&gt;\n",
"<script src='foo'></script>\n",
"&lt;script src=&#39;foo&#39;&gt;&lt;/script&gt;\n",
"<script src='a>b'></script>\n",
"&lt;script src=&#39;a&gt;b&#39;&gt;&lt;/script&gt;\n",
"zz <script src='foo'></script>\n",
"<p>zz &lt;script src=&#39;foo&#39;&gt;&lt;/script&gt;</p>\n",
"zz <script src=foo></script>\n",
"<p>zz &lt;script src=foo&gt;&lt;/script&gt;</p>\n",
`<script><script src="http://example.com/exploit.js"></SCRIPT></script>`,
"&lt;script&gt;&lt;script src=&#34;http://example.com/exploit.js&#34;&gt;&lt;/script&gt;&lt;/script&gt;\n",
`'';!--"<XSS>=&{()}`,
"<p>&#39;&#39;;!--&#34;&lt;xss&gt;=&amp;{()}</p>\n",
"<SCRIPT SRC=http://ha.ckers.org/xss.js></SCRIPT>",
"<p>&lt;script SRC=http://ha.ckers.org/xss.js&gt;&lt;/script&gt;</p>\n",
"<SCRIPT \nSRC=http://ha.ckers.org/xss.js></SCRIPT>",
"<p>&lt;script \nSRC=http://ha.ckers.org/xss.js&gt;&lt;/script&gt;</p>\n",
`<IMG SRC="javascript:alert('XSS');">`,
"<p><img></p>\n",
"<IMG SRC=javascript:alert('XSS')>",
"<p><img></p>\n",
"<IMG SRC=JaVaScRiPt:alert('XSS')>",
"<p><img></p>\n",
"<IMG SRC=`javascript:alert(\"RSnake says, 'XSS'\")`>",
"<p><img></p>\n",
`<a onmouseover="alert(document.cookie)">xss link</a>`,
"<p><a>xss link</a></p>\n",
"<a onmouseover=alert(document.cookie)>xss link</a>",
"<p><a>xss link</a></p>\n",
`<IMG """><SCRIPT>alert("XSS")</SCRIPT>">`,
"<p><img>&lt;script&gt;alert(&#34;XSS&#34;)&lt;/script&gt;&#34;&gt;</p>\n",
"<IMG SRC=javascript:alert(String.fromCharCode(88,83,83))>",
"<p><img></p>\n",
`<IMG SRC=# onmouseover="alert('xxs')">`,
"<p><img src=\"#\"></p>\n",
`<IMG SRC= onmouseover="alert('xxs')">`,
"<p><img></p>\n",
`<IMG onmouseover="alert('xxs')">`,
"<p><img></p>\n",
"<IMG SRC=&#106;&#97;&#118;&#97;&#115;&#99;&#114;&#105;&#112;&#116;&#58;&#97;&#108;&#101;&#114;&#116;&#40;&#39;&#88;&#83;&#83;&#39;&#41;>",
"<p><img></p>\n",
"<IMG SRC=&#0000106&#0000097&#0000118&#0000097&#0000115&#0000099&#0000114&#0000105&#0000112&#0000116&#0000058&#0000097&#0000108&#0000101&#0000114&#0000116&#0000040&#0000039&#0000088&#0000083&#0000083&#0000039&#0000041>",
"<p><img></p>\n",
"<IMG SRC=&#x6A&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A&#x61&#x6C&#x65&#x72&#x74&#x28&#x27&#x58&#x53&#x53&#x27&#x29>",
"<p><img></p>\n",
`<IMG SRC="javascriptascript:alert('XSS');">`,
"<p><img></p>\n",
`<IMG SRC="jav&#x09;ascript:alert('XSS');">`,
"<p><img></p>\n",
`<IMG SRC="jav&#x0A;ascript:alert('XSS');">`,
"<p><img></p>\n",
`<IMG SRC="jav&#x0D;ascript:alert('XSS');">`,
"<p><img></p>\n",
`<IMG SRC=" &#14; javascript:alert('XSS');">`,
"<p><img></p>\n",
`<SCRIPT/XSS SRC="http://ha.ckers.org/xss.js"></SCRIPT>`,
"<p>&lt;script/XSS SRC=&#34;http://ha.ckers.org/xss.js&#34;&gt;&lt;/script&gt;</p>\n",
"<BODY onload!#$%&()*~+-_.,:;?@[/|\\]^`=alert(\"XSS\")>",
"<p>&lt;body onload!#$%&amp;()*~+-_.,:;?@[/|\\]^`=alert(&#34;XSS&#34;)&gt;</p>\n",
`<SCRIPT/SRC="http://ha.ckers.org/xss.js"></SCRIPT>`,
"<p>&lt;script/SRC=&#34;http://ha.ckers.org/xss.js&#34;&gt;&lt;/script&gt;</p>\n",
`<<SCRIPT>alert("XSS");//<</SCRIPT>`,
"<p>&lt;&lt;script&gt;alert(&#34;XSS&#34;);//&lt;&lt;/script&gt;</p>\n",
"<SCRIPT SRC=http://ha.ckers.org/xss.js?< B >",
"<p>&lt;script SRC=http://ha.ckers.org/xss.js?&lt; B &gt;</p>\n",
"<SCRIPT SRC=//ha.ckers.org/.j>",
"<p>&lt;script SRC=//ha.ckers.org/.j&gt;</p>\n",
`<IMG SRC="javascript:alert('XSS')"`,
"<p>&lt;IMG SRC=&#34;javascript:alert(&#39;XSS&#39;)&#34;</p>\n",
"<iframe src=http://ha.ckers.org/scriptlet.html <",
// The hyperlink gets linkified, the <iframe> gets escaped
"<p>&lt;iframe src=<a href=\"http://ha.ckers.org/scriptlet.html\">http://ha.ckers.org/scriptlet.html</a> &lt;</p>\n",
// Additonal token types: SelfClosing, Comment, DocType.
"<br/>",
"<p><br/></p>\n",
"<!-- Comment -->",
"<!-- Comment -->\n",
"<!DOCTYPE test>",
"<p>&lt;!DOCTYPE test&gt;</p>\n",
}
doTestsSanitize(t, tests)
}
func TestSanitizeQuoteEscaping(t *testing.T) {
tests := []string{
// Make sure quotes are transported correctly (different entities or
// unicode, but correct semantics)
"<p>Here are some &quot;quotes&quot;.</p>\n",
"<p>Here are some &#34;quotes&#34;.</p>\n",
"<p>Here are some &ldquo;quotes&rdquo;.</p>\n",
"<p>Here are some \u201Cquotes\u201D.</p>\n",
// Within a <script> tag, content gets parsed by the raw text parsing rules.
// This test makes sure we correctly disable those parsing rules and do not
// escape e.g. the closing </p>.
`Here are <script> some "quotes".`,
"<p>Here are &lt;script&gt; some &#34;quotes&#34;.</p>\n",
// Same test for an unknown element that does not switch into raw mode.
`Here are <eviltag> some "quotes".`,
"<p>Here are &lt;eviltag&gt; some &#34;quotes&#34;.</p>\n",
}
doTestsSanitize(t, tests)
}
func TestSanitizeSelfClosingTag(t *testing.T) {
tests := []string{
"<hr>\n",
"<hr>\n",
"<hr/>\n",
"<hr/>\n",
// Make sure that evil attributes are stripped for self closing tags.
"<hr onclick=\"evil()\"/>\n",
"<hr/>\n",
}
doTestsSanitize(t, tests)
}
func TestSanitizeInlineLink(t *testing.T) {
tests := []string{
"[link](javascript:evil)",
"<p><a>link</a></p>\n",
"[link](/abc)",
"<p><a href=\"/abc\">link</a></p>\n",
}
doTestsSanitize(t, tests)
}
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