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A library for performing fast, configurable cleansing of HTML coming from untrusted sources.
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<?xml version="1.0" encoding="UTF-8" ?>
<!-- TinyMCE -->
<anti-samy-rules xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="antisamy.xsd">
<directives>
<directive name="omitXmlDeclaration" value="true" />
<directive name="omitDoctypeDeclaration" value="false" />
<directive name="maxInputSize" value="100000" />
<directive name="embedStyleSheets" value="false" />
<directive name="formatOutput" value="true" />
</directives>
<common-regexps>
<!-- From W3C: This attribute assigns a class name or set of class names to an element. Any number of elements may be assigned the same
class name or names. Multiple class names must be separated by white space characters. -->
<regexp name="htmlTitle" value="[a-zA-Z0-9\s\-_',:\[\]!\./\\\(\)&]*" />
<!-- force non-empty with a '+' at the end instead of '*' -->
<regexp name="onsiteURL"
value="^(?!//)(?![\p{L}\p{N}\\\.\#@\$%\+&;\-_~,\?=/!]*(&colon))[\p{L}\p{N}\\\.\#@\$%\+&;\-_~,\?=/!]*" />
<!-- ([\w\\/\.\?=&;\#-~]+|\#(\w)+) -->
<!-- ([\p{L}/ 0-9&\#-.?=])* -->
<regexp name="offsiteURL" value="(\s)*((ht|f)tp(s?)://|mailto:)[A-Za-z0-9]+[~a-zA-Z0-9-_\.@\#\$%&;:,\?=/\+!\(\)]*(\s)*" />
</common-regexps>
<!-- Tag.name = a, b, div, body, etc. Tag.action = filter: remove tags, but keep content, validate: keep content as long as it passes rules,
remove: remove tag and contents Attribute.name = id, class, href, align, width, etc. Attribute.onInvalid = what to do when the attribute is invalid,
e.g., remove the tag (removeTag), remove the attribute (removeAttribute), filter the tag (filterTag) Attribute.description = What rules in English
you want to tell the users they can have for this attribute. Include helpful things so they'll be able to tune their HTML -->
<!-- Some attributes are common to all (or most) HTML tags. There aren't many that qualify for this. You have to make sure there's no collisions
between any of these attribute names with attribute names of other tags that are for different purposes. -->
<common-attributes>
<attribute name="lang"
description="The 'lang' attribute tells the browser what language the element's attribute values and content are written in">
<regexp-list>
<regexp value="[a-zA-Z0-9-]{2,20}" />
</regexp-list>
</attribute>
<attribute name="title"
description="The 'title' attribute provides text that shows up in a 'tooltip' when a user hovers their mouse over the element">
<regexp-list>
<regexp name="htmlTitle" />
</regexp-list>
</attribute>
<attribute name="href" onInvalid="filterTag">
<regexp-list>
<regexp name="onsiteURL" />
<regexp name="offsiteURL" />
<!-- -->
</regexp-list>
</attribute>
<attribute name="align"
description="The 'align' attribute of an HTML element is a direction word, like 'left', 'right' or 'center'">
<literal-list>
<literal value="center" />
<literal value="left" />
<literal value="right" />
<literal value="justify" />
<literal value="char" />
</literal-list>
</attribute>
<attribute name="style"
description="The 'style' attribute provides the ability for users to change many attributes of the tag's contents using a strict syntax" />
</common-attributes>
<!-- This requires normal updates as browsers continue to diverge from the W3C and each other. As long as the browser wars continue this
is going to continue. I'm not sure war is the right word for what's going on. Doesn't somebody have to win a war after a while? -->
<global-tag-attributes>
<attribute name="title" />
<attribute name="lang" />
<attribute name="style" />
</global-tag-attributes>
<tags-to-encode>
<tag>g</tag>
<tag>grin</tag>
</tags-to-encode>
<tag-rules>
<!-- Remove -->
<tag name="script" action="remove" />
<tag name="noscript" action="remove" />
<tag name="iframe" action="remove" />
<tag name="frameset" action="remove" />
<tag name="frame" action="remove" />
<tag name="noframes" action="remove" />
<tag name="head" action="remove" />
<tag name="title" action="remove" />
<tag name="base" action="remove" />
<tag name="style" action="remove" />
<tag name="link" action="remove" />
<tag name="input" action="remove" />
<tag name="textarea" action="remove" />
<!-- Truncate -->
<tag name="br" action="truncate" />
<!-- Validate -->
<tag name="p" action="validate">
<attribute name="align" />
</tag>
<tag name="div" action="validate" />
<tag name="span" action="validate" />
<tag name="i" action="validate" />
<tag name="b" action="validate" />
<tag name="strong" action="validate" />
<tag name="s" action="validate" />
<tag name="strike" action="validate" />
<tag name="u" action="validate" />
<tag name="em" action="validate" />
<tag name="blockquote" action="validate" />
<tag name="tt" action="truncate" />
<tag name="a" action="validate">
<attribute name="href" onInvalid="filterTag" />
<attribute name="nohref">
<literal-list>
<literal value="nohref" />
<literal value="" />
</literal-list>
</attribute>
<attribute name="rel">
<literal-list>
<literal value="nofollow" />
</literal-list>
</attribute>
</tag>
<!-- List tags -->
<tag name="ul" action="validate" />
<tag name="ol" action="validate" />
<tag name="li" action="validate" />
<tag name="dl" action="validate" />
<tag name="dt" action="validate" />
<tag name="dd" action="validate" />
</tag-rules>
<css-rules>
<property name="text-decoration" default="none" description="">
<category-list>
<category value="visual" />
</category-list>
<literal-list>
<literal value="underline" />
<literal value="overline" />
<literal value="line-through" />
</literal-list>
</property>
</css-rules>
<allowed-empty-tags>
<literal-list>
<literal value="br" />
<literal value="hr" />
<literal value="a" />
<literal value="img" />
<literal value="link" />
<literal value="iframe" />
<literal value="script" />
<literal value="object" />
<literal value="applet" />
<literal value="frame" />
<literal value="base" />
<literal value="param" />
<literal value="meta" />
<literal value="input" />
<literal value="textarea" />
<literal value="embed" />
<literal value="basefont" />
<literal value="col" />
<literal value="div" />
</literal-list>
</allowed-empty-tags>
</anti-samy-rules>