Class which helps construct standard node validation policies.
By default this will not accept anything, but the 'allow*' functions can be used to expand what types of elements or attributes are allowed.
All allow functions are additive- elements will be accepted if they are accepted by any specific rule.
It is important to remember that sanitization is not just intended to prevent
cross-site scripting attacks, but also to prevent information from being
displayed in unexpected ways. For example something displaying basic
formatted text may not expect <video> tags to appear. In this case an
empty NodeValidatorBuilder with just allowTextElements might be
appropriate.
- Implements
Constructors
- NodeValidatorBuilder()
- NodeValidatorBuilder.common()
-
Creates a new NodeValidatorBuilder which accepts common constructs.…
Methods
-
add(
NodeValidator validator) → void -
Add an additional validator to the current list of validators.…
-
allowCustomElement(
String tagName, {UriPolicy uriPolicy, Iterable<String> attributes, Iterable<String> uriAttributes}) → void -
Allow custom elements with the specified tag name and specified attributes.…
-
allowElement(
String tagName, {UriPolicy uriPolicy, Iterable<String> attributes, Iterable<String> uriAttributes}) → void -
allowHtml5(
{UriPolicy uriPolicy}) → void -
Allow common safe HTML5 elements and attributes.…
-
allowImages(
[UriPolicy uriPolicy]) → void -
Allows image elements.…
-
allowInlineStyles(
{String tagName}) → void -
Allow inline styles on elements.…
-
Allows navigation elements- Form and Anchor tags, along with common attributes.…
-
allowsAttribute(
Element element, String attributeName, String value) → bool -
Returns true if the attribute is allowed.…
-
allowsElement(
Element element) → bool -
Returns true if the tagName is an accepted type.
-
allowSvg(
) → void -
Allow SVG elements and attributes except for known bad ones.
-
allowTagExtension(
String tagName, String baseName, {UriPolicy uriPolicy, Iterable<String> attributes, Iterable<String> uriAttributes}) → void -
Allow custom tag extensions with the specified type name and specified attributes.…
-
allowTemplating(
) → void -
Allow templating elements (such as <template> and template-related attributes.…
-
allowTextElements(
) → void -
Allow basic text elements.…