2017-01-30 20:40:43 +01:00
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<?php
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namespace App\Libraries;
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2017-01-12 12:52:37 +01:00
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use HTMLPurifier;
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use HTMLPurifier_Config;
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class HTMLUtils
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{
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2017-05-07 09:00:38 +02:00
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public static function sanitizeCSS($css)
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2017-01-12 12:52:37 +01:00
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{
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// Allow referencing the body element
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$css = preg_replace('/(?<![a-z0-9\-\_\#\.])body(?![a-z0-9\-\_])/i', '.body', $css);
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//
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// Inspired by http://stackoverflow.com/a/5209050/1721527, dleavitt <https://stackoverflow.com/users/362110/dleavitt>
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//
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// Create a new configuration object
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$config = HTMLPurifier_Config::createDefault();
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$config->set('Filter.ExtractStyleBlocks', true);
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$config->set('CSS.AllowImportant', true);
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$config->set('CSS.AllowTricky', true);
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$config->set('CSS.Trusted', true);
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2017-08-20 09:15:19 +02:00
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$config->set('Cache.SerializerPath', base_path('storage/framework/cache'));
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2017-01-12 12:52:37 +01:00
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// Create a new purifier instance
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$purifier = new HTMLPurifier($config);
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// Wrap our CSS in style tags and pass to purifier.
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// we're not actually interested in the html response though
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$purifier->purify('<style>'.$css.'</style>');
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// The "style" blocks are stored seperately
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$css = $purifier->context->get('StyleBlocks');
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// Get the first style block
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return count($css) ? $css[0] : '';
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}
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2017-05-07 09:00:38 +02:00
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public static function sanitizeHTML($html)
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{
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2017-08-04 15:39:11 +02:00
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$html = html_entity_decode($html);
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2017-05-07 09:00:38 +02:00
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$config = HTMLPurifier_Config::createDefault();
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2017-08-20 09:15:19 +02:00
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$config->set('Cache.SerializerPath', base_path('storage/framework/cache'));
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2017-05-07 09:00:38 +02:00
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$purifier = new HTMLPurifier($config);
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return $purifier->purify($html);
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}
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2017-06-13 14:42:41 +02:00
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public static function previousUrl($fallback)
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{
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$previous = url()->previous();
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$current = request()->url();
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if ($previous == $current) {
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return url($fallback);
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} else {
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return $previous;
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}
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}
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2018-01-22 17:24:37 +01:00
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public static function getEnvForAccount($field, $default = '')
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{
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$key = '';
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if ($user = auth()->user()) {
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$key .= $user->account->id . '_';
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}
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$key .= $field;
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return env($key, env($field, $default));
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}
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2017-01-12 12:52:37 +01:00
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}
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