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https://github.com/smogon/pokemon-showdown-client.git
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2105dc8e57
Closes #1567 The main reason I'm not simply merging Annika's PR is because this way makes it clearer that I'm taking responsibility for all this code, that it's mostly code I wrote, and also because it makes it easier to ensure that none of the files have been changed. (Not that I don't personally trust Annika, but I have something resembling an obligation to users not to expose them to risks based on personal trust.)
72 lines
2.1 KiB
PHP
72 lines
2.1 KiB
PHP
<?php
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/**
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* Validates the value for the CSS property text-shadow
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*/
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class HTMLPurifier_AttrDef_CSS_TextShadow extends HTMLPurifier_AttrDef
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{
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protected $color_validator;
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protected $length_validator;
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/**
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* @param string $string
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* @param HTMLPurifier_Config $config
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* @param HTMLPurifier_Context $context
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* @return bool|string
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*/
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public function validate($string, $config, $context)
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{
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if (!$this->color_validator) {
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$this->color_validator = new HTMLPurifier_AttrDef_CSS_Color();
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}
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if (!$this->length_validator) {
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$this->length_validator = new HTMLPurifier_AttrDef_CSS_Length();
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}
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$string = strtolower($this->parseCDATA($string));
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if ($string === 'none') {
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return $string;
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}
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$shadows = explode(',', $string);
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$final_shadows = [];
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foreach ($shadows as $shadow) {
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$parts = explode(' ', rtrim($shadow));
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$color = $this->color_validator->validate($parts[0], $config, $context);
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if ($color) {
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array_shift($parts);
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}
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$offset_x = $this->length_validator->validate(array_shift($parts), $config, $context);
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$offset_y = $this->length_validator->validate(array_shift($parts), $config, $context);
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if ($offset_x === false || $offset_y === false) {
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continue;
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}
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$blur_radius = $this->length_validator->validate($parts[0], $config, $context);
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if ($blur_radius !== false) {
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array_shift($parts);
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} else {
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$blur_radius = 0;
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}
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if (!isset($parts[0])) return false;
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if (!$color) {
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$color = $this->color_validator->validate($parts[0], $config, $context) ?: "";
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}
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$final_shadows[] = "$offset_x $offset_y $blur_radius $color";
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}
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if (count($final_shadows) === 0) {
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return false;
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}
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return implode(',', $final_shadows);
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}
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}
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// vim: et sw=4 sts=4
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