mirror of
https://github.com/ezyang/htmlpurifier.git
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b1822bb04f
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1022 48356398-32a2-884e-a903-53898d9a118a
200 lines
8.9 KiB
PHP
200 lines
8.9 KiB
PHP
<?php
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require_once 'HTMLPurifier/ChildDef/StrictBlockquote.php';
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require_once 'HTMLPurifier/TagTransform/Simple.php';
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require_once 'HTMLPurifier/TagTransform/Center.php';
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require_once 'HTMLPurifier/TagTransform/Font.php';
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require_once 'HTMLPurifier/AttrTransform/Lang.php';
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require_once 'HTMLPurifier/AttrTransform/BgColor.php';
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require_once 'HTMLPurifier/AttrTransform/BoolToCSS.php';
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require_once 'HTMLPurifier/AttrTransform/Border.php';
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require_once 'HTMLPurifier/AttrTransform/Name.php';
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require_once 'HTMLPurifier/AttrTransform/Length.php';
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require_once 'HTMLPurifier/AttrTransform/ImgSpace.php';
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require_once 'HTMLPurifier/AttrTransform/EnumToCSS.php';
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/**
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* Proprietary module that transforms deprecated elements into Strict
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* HTML (see HTML 4.01 and XHTML 1.0) when possible.
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*/
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class HTMLPurifier_HTMLModule_TransformToStrict extends HTMLPurifier_HTMLModule
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{
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var $name = 'TransformToStrict';
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// we're actually modifying these elements, not defining them
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var $elements = array('h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'p',
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'blockquote', 'table', 'td', 'th', 'tr', 'img', 'a', 'hr', 'br',
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'caption', 'ul', 'ol', 'li');
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var $info_tag_transform = array(
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// placeholders, see constructor for definitions
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'font' => false,
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'menu' => false,
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'dir' => false,
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'center'=> false
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);
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var $attr_collections = array(
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'Lang' => array(
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'lang' => false // placeholder
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)
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);
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var $info_attr_transform_post = array(
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'lang' => false // placeholder
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);
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function HTMLPurifier_HTMLModule_TransformToStrict() {
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// behavior with transformations when there's another CSS property
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// working on it is interesting: the CSS will *always* override
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// the deprecated attribute, whereas an inline CSS declaration will
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// override the corresponding declaration in, say, an external
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// stylesheet. This behavior won't affect most people, but it
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// does represent an operational difference we CANNOT fix.
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// deprecated tag transforms
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$this->info_tag_transform['font'] = new HTMLPurifier_TagTransform_Font();
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$this->info_tag_transform['menu'] = new HTMLPurifier_TagTransform_Simple('ul');
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$this->info_tag_transform['dir'] = new HTMLPurifier_TagTransform_Simple('ul');
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$this->info_tag_transform['center'] = new HTMLPurifier_TagTransform_Center();
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foreach ($this->elements as $name) {
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$this->info[$name] = new HTMLPurifier_ElementDef();
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$this->info[$name]->standalone = false;
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}
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// deprecated attribute transforms
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// align battery
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$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:$v;";
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$this->info['h1']->attr_transform_pre['align'] =
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$this->info['h2']->attr_transform_pre['align'] =
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$this->info['h3']->attr_transform_pre['align'] =
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$this->info['h4']->attr_transform_pre['align'] =
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$this->info['h5']->attr_transform_pre['align'] =
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$this->info['h6']->attr_transform_pre['align'] =
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$this->info['p'] ->attr_transform_pre['align'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('align', $align_lookup);
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// xml:lang <=> lang mirroring, implement in TransformToStrict,
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// this is overridden in TransformToXHTML11
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$this->info_attr_transform_post['lang'] = new HTMLPurifier_AttrTransform_Lang();
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$this->attr_collections['Lang']['lang'] = new HTMLPurifier_AttrDef_Lang();
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// this should not be applied to XHTML 1.0 Transitional, ONLY
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// XHTML 1.0 Strict. We may need three classes
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$this->info['blockquote']->content_model_type = 'strictblockquote';
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$this->info['blockquote']->child = false; // recalculate please!
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$this->info['table']->attr_transform_pre['bgcolor'] =
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$this->info['tr']->attr_transform_pre['bgcolor'] =
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$this->info['td']->attr_transform_pre['bgcolor'] =
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$this->info['th']->attr_transform_pre['bgcolor'] = new HTMLPurifier_AttrTransform_BgColor();
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$this->info['img']->attr_transform_pre['border'] = new HTMLPurifier_AttrTransform_Border();
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$this->info['img']->attr_transform_pre['name'] =
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$this->info['a']->attr_transform_pre['name'] = new HTMLPurifier_AttrTransform_Name();
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$this->info['td']->attr_transform_pre['width'] =
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$this->info['th']->attr_transform_pre['width'] =
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$this->info['hr']->attr_transform_pre['width'] = new HTMLPurifier_AttrTransform_Length('width');
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$this->info['td']->attr_transform_pre['nowrap'] =
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$this->info['th']->attr_transform_pre['nowrap'] = new HTMLPurifier_AttrTransform_BoolToCSS('nowrap', 'white-space:nowrap;');
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$this->info['td']->attr_transform_pre['height'] =
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$this->info['th']->attr_transform_pre['height'] = new HTMLPurifier_AttrTransform_Length('height');
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$this->info['img']->attr_transform_pre['hspace'] = new HTMLPurifier_AttrTransform_ImgSpace('hspace');
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$this->info['img']->attr_transform_pre['vspace'] = new HTMLPurifier_AttrTransform_ImgSpace('vspace');
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$this->info['hr']->attr_transform_pre['size'] = new HTMLPurifier_AttrTransform_Length('size', 'height');
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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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$this->info['hr']->attr_transform_pre['noshade'] = new HTMLPurifier_AttrTransform_BoolToCSS('noshade', 'color:#808080;background-color:#808080;border: 0;');
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$this->info['br']->attr_transform_pre['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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// this is a slightly unreasonable attribute
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$this->info['caption']->attr_transform_pre['align'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
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// we're following IE's behavior, not Firefox's, due
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// to the fact that no one supports caption-side:right,
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// W3C included (with CSS 2.1)
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'left' => 'text-align:left;',
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'right' => 'text-align:right;',
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'top' => 'caption-side:top;',
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'bottom' => 'caption-side:bottom;' // not supported by IE
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));
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$this->info['table']->attr_transform_pre['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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$this->info['img']->attr_transform_pre['align'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
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'left' => 'float:left;',
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'right' => 'float:right;',
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'top' => 'vertical-align:top;',
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'middle' => 'vertical-align:middle;',
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'bottom' => 'vertical-align:baseline;',
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));
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$this->info['hr']->attr_transform_pre['align'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
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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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$ul_types = array(
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'disc' => 'list-style-type:disc;',
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'square' => 'list-style-type:square;',
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'circle' => 'list-style-type:circle;'
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);
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$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 + $ol_types;
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$this->info['ul']->attr_transform_pre['type'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('type', $ul_types);
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$this->info['ol']->attr_transform_pre['type'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('type', $ol_types, true);
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$this->info['li']->attr_transform_pre['type'] =
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new HTMLPurifier_AttrTransform_EnumToCSS('type', $li_types, true);
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}
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var $defines_child_def = true;
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function getChildDef($def) {
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if ($def->content_model_type != 'strictblockquote') return false;
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return new HTMLPurifier_ChildDef_StrictBlockquote($def->content_model);
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}
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}
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?>
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