Extension Methods for AntiXss

Playing around with some C# 3.0 language features, I came up with something which is quite useful if you are doing a lot of web in/output encoding.

The following extension methods wrap the AntiXss library:

public static class Extensions

{

public static string UrlEncode(this string input)

{

return AntiXss.UrlEncode(input);

}

public static string HtmlEncode(this string input)

{

return AntiXss.HtmlEncode(input);

}

// rest omitted

}

This allows doing something like this:

string input = “<h1>leastprivilege rocks</h1>”;

Response.Write(input.HtmlEncode());