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https://github.com/EGroupware/egroupware.git
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8f797be836
- can be used via html class like:
$clean_html = html::purify($html);
- using it now in eTemplate to remove malicious code from html:
a) when displaying "formatted text"
b) when "formatted text" get's input by the user
162 lines
6.6 KiB
PHP
Executable File
162 lines
6.6 KiB
PHP
Executable File
<?php
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class HTMLPurifier_HTMLModule_Tidy_XHTMLAndHTML4 extends HTMLPurifier_HTMLModule_Tidy
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{
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public function makeFixes() {
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$r = array();
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// == deprecated tag transforms ===================================
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$r['font'] = new HTMLPurifier_TagTransform_Font();
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$r['menu'] = new HTMLPurifier_TagTransform_Simple('ul');
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$r['dir'] = new HTMLPurifier_TagTransform_Simple('ul');
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$r['center'] = new HTMLPurifier_TagTransform_Simple('div', 'text-align:center;');
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$r['u'] = new HTMLPurifier_TagTransform_Simple('span', 'text-decoration:underline;');
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$r['s'] = new HTMLPurifier_TagTransform_Simple('span', 'text-decoration:line-through;');
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$r['strike'] = new HTMLPurifier_TagTransform_Simple('span', 'text-decoration:line-through;');
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// == deprecated attribute transforms =============================
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$r['caption@align'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
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// we're following IE's behavior, not Firefox's, due
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// to the fact that no one supports caption-side:right,
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// W3C included (with CSS 2.1). This is a slightly
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// unreasonable attribute!
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'left' => 'text-align:left;',
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'right' => 'text-align:right;',
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'top' => 'caption-side:top;',
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'bottom' => 'caption-side:bottom;' // not supported by IE
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));
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// @align for img -------------------------------------------------
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$r['img@align'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
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'left' => 'float:left;',
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'right' => 'float:right;',
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'top' => 'vertical-align:top;',
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'middle' => 'vertical-align:middle;',
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'bottom' => 'vertical-align:baseline;',
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));
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// @align for table -----------------------------------------------
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$r['table@align'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
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'left' => 'float:left;',
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'center' => 'margin-left:auto;margin-right:auto;',
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'right' => 'float:right;'
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));
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// @align for hr -----------------------------------------------
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$r['hr@align'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
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// we use both text-align and margin because these work
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// for different browsers (IE and Firefox, respectively)
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// and the melange makes for a pretty cross-compatible
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// solution
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'left' => 'margin-left:0;margin-right:auto;text-align:left;',
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'center' => 'margin-left:auto;margin-right:auto;text-align:center;',
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'right' => 'margin-left:auto;margin-right:0;text-align:right;'
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));
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// @align for h1, h2, h3, h4, h5, h6, p, div ----------------------
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// {{{
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$align_lookup = array();
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$align_values = array('left', 'right', 'center', 'justify');
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foreach ($align_values as $v) $align_lookup[$v] = "text-align:$v;";
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// }}}
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$r['h1@align'] =
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$r['h2@align'] =
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$r['h3@align'] =
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$r['h4@align'] =
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$r['h5@align'] =
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$r['h6@align'] =
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$r['p@align'] =
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$r['div@align'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('align', $align_lookup);
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// @bgcolor for table, tr, td, th ---------------------------------
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$r['table@bgcolor'] =
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$r['td@bgcolor'] =
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$r['th@bgcolor'] =
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new HTMLPurifier_AttrTransform_BgColor();
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// @border for img ------------------------------------------------
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$r['img@border'] = new HTMLPurifier_AttrTransform_Border();
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// @clear for br --------------------------------------------------
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$r['br@clear'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('clear', array(
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'left' => 'clear:left;',
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'right' => 'clear:right;',
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'all' => 'clear:both;',
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'none' => 'clear:none;',
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));
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// @height for td, th ---------------------------------------------
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$r['td@height'] =
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$r['th@height'] =
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new HTMLPurifier_AttrTransform_Length('height');
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// @hspace for img ------------------------------------------------
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$r['img@hspace'] = new HTMLPurifier_AttrTransform_ImgSpace('hspace');
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// @noshade for hr ------------------------------------------------
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// this transformation is not precise but often good enough.
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// different browsers use different styles to designate noshade
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$r['hr@noshade'] =
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new HTMLPurifier_AttrTransform_BoolToCSS(
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'noshade',
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'color:#808080;background-color:#808080;border:0;'
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);
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// @nowrap for td, th ---------------------------------------------
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$r['td@nowrap'] =
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$r['th@nowrap'] =
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new HTMLPurifier_AttrTransform_BoolToCSS(
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'nowrap',
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'white-space:nowrap;'
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);
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// @size for hr --------------------------------------------------
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$r['hr@size'] = new HTMLPurifier_AttrTransform_Length('size', 'height');
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// @type for li, ol, ul -------------------------------------------
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// {{{
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$ul_types = array(
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'disc' => 'list-style-type:disc;',
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'square' => 'list-style-type:square;',
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'circle' => 'list-style-type:circle;'
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);
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$ol_types = array(
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'1' => 'list-style-type:decimal;',
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'i' => 'list-style-type:lower-roman;',
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'I' => 'list-style-type:upper-roman;',
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'a' => 'list-style-type:lower-alpha;',
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'A' => 'list-style-type:upper-alpha;'
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);
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$li_types = $ul_types + $ol_types;
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// }}}
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$r['ul@type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $ul_types);
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$r['ol@type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $ol_types, true);
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$r['li@type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $li_types, true);
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// @vspace for img ------------------------------------------------
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$r['img@vspace'] = new HTMLPurifier_AttrTransform_ImgSpace('vspace');
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// @width for hr, td, th ------------------------------------------
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$r['td@width'] =
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$r['th@width'] =
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$r['hr@width'] = new HTMLPurifier_AttrTransform_Length('width');
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return $r;
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}
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}
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// vim: et sw=4 sts=4
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