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Use HashSet for URI attributes (closes #9)

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Michael Ganss
2014-11-24 14:02:11 +01:00
parent 46165ed94f
commit 32ca8ef0ba
1 changed files with 17 additions and 7 deletions
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24
HtmlSanitizer/HtmlSanitizer.cs
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@@ -131,8 +131,6 @@ namespace Html
"type", "usemap", "valign", "value", "vspace", "width" };
private static HashSet<string> DefaultAllowedAttributesSet = new HashSet<string>(DefaultAllowedAttributes, StringComparer.OrdinalIgnoreCase);
private IEnumerable<string> _uriAttributes;
/// <summary>
/// Gets or sets the HTML attributes that can contain a URI.
/// </summary>
@@ -141,14 +139,26 @@ namespace Html
/// </value>
public IEnumerable<string> UriAttributes
{
get { return _uriAttributes ?? DefaultUriAttributes; }
set { _uriAttributes = value; }
}
get { return _uriAttributesSet.ToArray(); }
set
{
UriAttributesSet = new HashSet<string>(value, StringComparer.OrdinalIgnoreCase);
}
}
private HashSet<string> _uriAttributesSet;
private HashSet<string> UriAttributesSet
{
get { return _uriAttributesSet ?? DefaultUriAttributesSet; }
set { _uriAttributesSet = value; }
}
/// <summary>
/// The default URI attributes.
/// </summary>
public static readonly IEnumerable<string> DefaultUriAttributes = new[] { "action", "background", "dynsrc", "href", "lowsrc", "src" };
public static readonly IEnumerable<string> DefaultUriAttributes = new[] { "action", "background", "dynsrc", "href", "lowsrc", "src" };
private static HashSet<string> DefaultUriAttributesSet = new HashSet<string>(DefaultUriAttributes, StringComparer.OrdinalIgnoreCase);
/// <summary>
/// Gets or sets the allowed CSS properties.
@@ -293,7 +303,7 @@ namespace Html
RemoveAttribute(tag, attribute);
}
foreach (var attribute in tag.Attributes.Where(a => UriAttributes.Contains(a.Key)).ToList())
foreach (var attribute in tag.Attributes.Where(a => UriAttributesSet.Contains(a.Key)).ToList())
{
var url = SanitizeUrl(attribute.Value, baseUrl);
if (url == null)