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58 lines
1.8 KiB
58 lines
1.8 KiB
<?php
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/* For licensing terms, see /license.txt */
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require_once api_get_path(SYS_PATH).'main/inc/lib/kses-0.2.2/kses.php';
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/**
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* QuickForm rule to check a html
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*/
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class HTML_QuickForm_Rule_HTML extends HTML_QuickForm_Rule
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{
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/**
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* Function to validate HTML
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* @see HTML_QuickForm_Rule
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* @param string $html
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* @return boolean True if html is valid
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*/
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public function validate($html, $mode = NO_HTML)
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{
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$allowed_tags = self::get_allowed_tags($mode, $fullpage);
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$cleaned_html = kses($html, $allowed_tags);
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return $html == $cleaned_html;
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}
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/**
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* Get allowed tags
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* @param int $mode NO_HTML, STUDENT_HTML, TEACHER_HTML,
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* STUDENT_HTML_FULLPAGE or TEACHER_HTML_FULLPAGE
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* @param boolean $fullpage If true, the allowed tags for full-page editing
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* are returned.
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*/
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static function get_allowed_tags($mode)
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{
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// Include the allowed tags.
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//include __DIR__.'/allowed_tags.inc.php';
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global $allowed_tags_student, $allowed_tags_student_full_page, $allowed_tags_teacher, $allowed_tags_teacher_full_page;
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switch ($mode) {
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case NO_HTML:
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return array();
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break;
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case STUDENT_HTML:
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return $allowed_tags_student;
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break;
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case STUDENT_HTML_FULLPAGE:
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return array_merge($allowed_tags_student, $allowed_tags_student_full_page);
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break;
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case TEACHER_HTML:
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return $allowed_tags_teacher;
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break;
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case TEACHER_HTML_FULLPAGE:
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return array_merge($allowed_tags_teacher, $allowed_tags_teacher_full_page);
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break;
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default:
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return array();
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break;
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}
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}
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}
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