org.jsoup.safety

Class Cleaner

java.lang.Object

org.jsoup.safety.Cleaner

public class Cleaner
extends Object

The safelist based HTML cleaner. Use to ensure that end-user provided HTML contains only the elements and attributes that you are expecting; no junk, and no cross-site scripting attacks!

The HTML cleaner parses the input as HTML and then runs it through a safe-list, so the output HTML can only contain HTML that is allowed by the safelist.

It is assumed that the input HTML is a body fragment; the clean methods only pull from the source's body, and the canned safe-lists only allow body contained tags.

Rather than interacting directly with a Cleaner object, generally see the clean methods in Jsoup.

Constructor Summary

Constructors

Constructor and Description
Cleaner(Safelist safelist) Create a new cleaner, that sanitizes documents using the supplied safelist.
Cleaner(Whitelist whitelist) Deprecated. as of 1.14.1.

Method Summary

Modifier and Type	Method and Description
Document	clean(Document dirtyDocument) Creates a new, clean document, from the original dirty document, containing only elements allowed by the safelist.
boolean	isValid(Document dirtyDocument) Determines if the input document bodyis valid, against the safelist.
boolean	isValidBodyHtml(String bodyHtml)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Cleaner

public Cleaner(Safelist safelist)

Create a new cleaner, that sanitizes documents using the supplied safelist.

Parameters:

safelist - safe-list to clean with

Cleaner

@Deprecated
public Cleaner(Whitelist whitelist)

Deprecated. as of 1.14.1.

Use Cleaner(Safelist) instead.

Method Detail

clean

public Document clean(Document dirtyDocument)

Creates a new, clean document, from the original dirty document, containing only elements allowed by the safelist. The original document is not modified. Only elements from the dirty document's body are used. The OutputSettings of the original document are cloned into the clean document.

Parameters:

dirtyDocument - Untrusted base document to clean.

Returns:

cleaned document.

isValid

public boolean isValid(Document dirtyDocument)

Determines if the input document bodyis valid, against the safelist. It is considered valid if all the tags and attributes in the input HTML are allowed by the safelist, and that there is no content in the head.

This method can be used as a validator for user input. An invalid document will still be cleaned successfully using the clean(Document) document. If using as a validator, it is recommended to still clean the document to ensure enforced attributes are set correctly, and that the output is tidied.

Parameters:

dirtyDocument - document to test

Returns:

true if no tags or attributes need to be removed; false if they do

isValidBodyHtml

public boolean isValidBodyHtml(String bodyHtml)