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MDL-31785 import HTMLPurifier 4.4.0+
Includes one extra fix for _blank 8c9d461a6259d7b8ac4ae5c9c9e95ab176cfcda3 compared to 4.4.0 release.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| <?php | ||
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| /** | ||
| * Validates based on {ident} CSS grammar production | ||
| */ | ||
| class HTMLPurifier_AttrDef_CSS_Ident extends HTMLPurifier_AttrDef | ||
| { | ||
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| public function validate($string, $config, $context) { | ||
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| $string = trim($string); | ||
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| // early abort: '' and '0' (strings that convert to false) are invalid | ||
| if (!$string) return false; | ||
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| $pattern = '/^(-?[A-Za-z_][A-Za-z_\-0-9]*)$/'; | ||
| if (!preg_match($pattern, $string)) return false; | ||
| return $string; | ||
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| } | ||
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| } | ||
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| // vim: et sw=4 sts=4 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| <?php | ||
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| /** | ||
| * Dummy AttrDef that mimics another AttrDef, BUT it generates clones | ||
| * with make. | ||
| */ | ||
| class HTMLPurifier_AttrDef_Clone extends HTMLPurifier_AttrDef | ||
| { | ||
| /** | ||
| * What we're cloning | ||
| */ | ||
| protected $clone; | ||
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| public function __construct($clone) { | ||
| $this->clone = $clone; | ||
| } | ||
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| public function validate($v, $config, $context) { | ||
| return $this->clone->validate($v, $config, $context); | ||
| } | ||
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| public function make($string) { | ||
| return clone $this->clone; | ||
| } | ||
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| } | ||
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| // vim: et sw=4 sts=4 |
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38 changes: 38 additions & 0 deletions
38
lib/htmlpurifier/HTMLPurifier/AttrTransform/TargetBlank.php
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| <?php | ||
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| // must be called POST validation | ||
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| /** | ||
| * Adds target="blank" to all outbound links. This transform is | ||
| * only attached if Attr.TargetBlank is TRUE. This works regardless | ||
| * of whether or not Attr.AllowedFrameTargets | ||
| */ | ||
| class HTMLPurifier_AttrTransform_TargetBlank extends HTMLPurifier_AttrTransform | ||
| { | ||
| private $parser; | ||
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| public function __construct() { | ||
| $this->parser = new HTMLPurifier_URIParser(); | ||
| } | ||
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| public function transform($attr, $config, $context) { | ||
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| if (!isset($attr['href'])) { | ||
| return $attr; | ||
| } | ||
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| // XXX Kind of inefficient | ||
| $url = $this->parser->parse($attr['href']); | ||
| $scheme = $url->getSchemeObj($config, $context); | ||
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| if ($scheme->browsable && !$url->isBenign($config, $context)) { | ||
| $attr['target'] = '_blank'; | ||
| } | ||
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| return $attr; | ||
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| } | ||
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| } | ||
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| // vim: et sw=4 sts=4 |
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