public void invalid_a_hrefs_should_be_filtered()
{
var scanner = new AntiSamy();
/*
* remove non-allowed hrefs
*/
var input = @"<div>
<a href='mysite.com/image.jpg' /> <!-- to be allowed --!>
<a href='mysite.com/some_relative_path' /> <!-- to be allowed --!>
<a href='mysite.com/some_relative_path/level2' /> <!-- to be allowed --!>
Some description
<a href='hackers.com/xss.js' />
<a href='abc.com' />
another description
</div>";
AntiySamyResult result = scanner.Scan(input, TestPolicy);
// safe - allowed url pattern in the antisamy1.xml
result.CleanHtml.Should().Contain("<div");
result.CleanHtml.Should().Contain("Some description");
result.CleanHtml.Should().Contain("another description");
result.CleanHtml.Should().Contain("mysite.com/image.jpg");
result.CleanHtml.Should().Contain("mysite.com/some_relative_path");
result.CleanHtml.Should().Contain("mysite.com/some_relative_path/level2");
// non safe
result.CleanHtml.Should().NotContain("hackers.com/xss.js");
result.CleanHtml.Should().NotContain("abc.com");
}
public void TestDoesNotBlowUpWithAllPolicies([ValueSource("AllPolicyFilePaths")] string policyFile)
{
const string html = "<a onblur=\"try {parent.deselectBloggerImageGracefully();}" + "catch(e) {}\""
+ "href=\"http://www.charityadvantage.com/ChildrensmuseumEaston/images/BookswithBill.jpg\"><img" + "style=\"FLOAT: right; MARGIN: 0px 0px 10px 10px; WIDTH: 150px; CURSOR:"
+ "hand; HEIGHT: 100px\" alt=\"\"" + "src=\"http://www.charityadvantage.com/ChildrensmuseumEaston/images/BookswithBill.jpg\""
+ "border=\"0\" /></a><br />Poor Bill, couldn't make it to the Museum's <span" + "class=\"blsp-spelling-corrected\" id=\"SPELLING_ERROR_0\">story time</span>"
+ "today, he was so busy shoveling! Well, we sure missed you Bill! So since" + "ou were busy moving snow we read books about snow. We found a clue in one"
+ "book which revealed a snowplow at the end of the story - we wish it had" + "driven to your driveway Bill. We also read a story which shared fourteen"
+ "<em>Names For Snow. </em>We'll catch up with you next week....wonder which" + "hat Bill will wear?<br />Jane";
Policy testPolicy = null;
string result = null;
try
{
testPolicy = Policy.GetInstance(policyFile);
result = new AntiSamy().Scan(html, testPolicy).GetCleanHtml();
}
catch
{
// To comply with try/catch
}
testPolicy.Should().NotBeNull();
result.Should().NotBeNull();
}
public void invalid_tags_should_be_removed()
{
var scanner = new AntiSamy();
/*
* remove iframe, object, embed, frame, frameset
*/
var input = @"<div>
Some description
<iframe src='hackers.com/xss' />
<object data='hackers.com/xss' />
<embed />
<frame />
<frameset />
</div>";
AntiySamyResult result = scanner.Scan(input, TestPolicy);
//safe
result.CleanHtml.Should().Contain("<div");
result.CleanHtml.Should().Contain("Some description");
// non safe
result.CleanHtml.Should().NotContain("<iframe");
result.CleanHtml.Should().NotContain("<object");
result.CleanHtml.Should().NotContain("<embed");
result.CleanHtml.Should().NotContain("<frame");
result.CleanHtml.Should().NotContain("<frameset");
}
public void Test_dom_good_result()
{
var html = "<div align=\"right\">html</div>";
AntiySamyResult result = new AntiSamy().Scan(html, TestPolicy);
result.ErrorMessages.Count().Should().Be(0);
}
public void TestDomBadResult()
{
var badHtml = "<div align=\"foo\">badhtml</div>";
AntiySamyResult result = new AntiSamy().Scan(badHtml, TestPolicy);
result.ErrorMessages.Count().Should().BeGreaterThan(0);
}
public void allow_any_src_in_img_tag()
{
var scanner = new AntiSamy();
/*
* remove non-allowed hrefs
*/
var input = "Size Table: ;<p><img src=\"/Assets/ProductImages/chartlar/image.jpg\" width=\"456\" height=\"197\" alt=\"\" /></p> ; Lorem ipsum";
AntiySamyResult result = scanner.Scan(input, GetPolicy("antisamy-mysite.xml"));
result.CleanHtml.Should().Be(input);
}
public void TestDoesNotBlowUpShortScriptTagWithAllPolicies([ValueSource("AllPolicyFilePaths")] string policyFile)
{
Policy testPolicy = null;
string result = null;
try
{
testPolicy = Policy.GetInstance(policyFile);
result = new AntiSamy().Scan("<script src=\"<. \">\"></script>", testPolicy).GetCleanHtml();
}
catch
{
// To comply with try/catch
}
testPolicy.Should().NotBeNull();
result.Should().NotBeNull();
}
public void TestDoesNotBlowUpOnEmptyTableWithAllPolicies([ValueSource("AllPolicyFilePaths")] string policyFile)
{
Policy testPolicy = null;
string result = null;
try
{
testPolicy = Policy.GetInstance(policyFile);
result = new AntiSamy().Scan("<table><tr><td></td></tr></table>", testPolicy).GetCleanHtml();
}
catch
{
// To comply with try/catch
}
testPolicy.Should().NotBeNull();
result.Should().NotBeNull();
}
public void invalid_img_urls_should_be_filtered()
{
var scanner = new AntiSamy();
/*
* remove non-allowed image srcs
*/
var input = @"<div>
<img src='mysite.com/image.jpg' /> <!-- to be allowed --!>
Some description
<img src='hackers.com/xss.js' />
</div>";
AntiySamyResult result = scanner.Scan(input, TestPolicy);
// safe - allowed url pattern in the antisamy1.xml
result.CleanHtml.Should().Contain("Some description");
result.CleanHtml.Should().Contain("<div");
result.CleanHtml.Should().Contain("mysite.com/image.jpg");
// non safe
result.CleanHtml.Should().NotContain("hackers.com/xss.js");
}
public void script_references_should_be_removed_by_default()
{
var scanner = new AntiSamy();
/*
* remove non-allowed hrefs
*/
var input = @"<script type='text/javascript' src='hackers.com/xss.js' />
<script>alert('XSS !!!');</script>
<div>
Some description
<script type='text/javascript' src='hackers.com/xss.js' />
</div>";
AntiySamyResult result = scanner.Scan(input, TestPolicy);
//safe
result.CleanHtml.Should().Contain("<div");
result.CleanHtml.Should().Contain("Some description");
// non safe
result.CleanHtml.Should().NotContain("<script");
}
public void SetUp()
{
antisamy = new AntiSamy();
policy = Policy.GetInstance(TestConstants.DEFAULT_POLICY_PATH);
}
