From 2646f5ea57b7d4bb1dbaafa42b7a8a6eb5ff41e4 Mon Sep 17 00:00:00 2001
From: "Edward Z. Yang" <edwardzyang@thewritingpot.com>
Date: Tue, 1 May 2007 21:43:24 +0000
Subject: [PATCH] Add experimental and dangerous Scripting module. This is NOT
 mentioned in the NEWS items, and will be officially released with 1.7.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1008 48356398-32a2-884e-a903-53898d9a118a
---
 library/HTMLPurifier/HTMLModule/Scripting.php | 67 +++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 library/HTMLPurifier/HTMLModule/Scripting.php

diff --git a/library/HTMLPurifier/HTMLModule/Scripting.php b/library/HTMLPurifier/HTMLModule/Scripting.php
new file mode 100644
index 00000000..e3ef802b
--- /dev/null
+++ b/library/HTMLPurifier/HTMLModule/Scripting.php
@@ -0,0 +1,67 @@
+<?php
+
+/*
+
+WARNING: THIS MODULE IS EXTREMELY DANGEROUS AS IT ENABLES INLINE SCRIPTING
+INSIDE HTML PURIFIER DOCUMENTS. USE ONLY WITH TRUSTED USER INPUT!!!
+
+Usage:
+
+require_once 'HTMLPurifier/HTMLModule/Scripting.php';
+$def =& $config->getHTMLDefinition(true); // get the raw version
+$def->manager->addModule('Scripting');
+
+This must come before any other calls to getHTMLDefinition()
+
+*/
+
+/**
+ * Implements required attribute stipulation for <script>
+ */
+class HTMLPurifier_AttrTransform_ScriptRequired extends HTMLPurifier_AttrTransform
+{
+    function transform($attr, $config, &$context) {
+        if (!isset($attr['type'])) {
+            $attr['type'] = 'text/javascript';
+        }
+        return $attr;
+    }
+}
+
+/**
+ * XHTML 1.1 Scripting module, defines elements that are used to contain
+ * information pertaining to executable scripts or the lack of support
+ * for executable scripts.
+ * @note This module does not contain inline scripting elements
+ */
+class HTMLPurifier_HTMLModule_Scripting extends HTMLPurifier_HTMLModule
+{
+    var $name = 'Scripting';
+    var $elements = array('script', 'noscript');
+    var $content_sets = array('Block' => 'script | noscript', 'Inline' => 'script | noscript');
+    
+    function HTMLPurifier_HTMLModule_Scripting() {
+        // TODO: create custom child-definition for noscript that
+        // auto-wraps stray #PCDATA in a similar manner to 
+        // blockquote's custom definition (we would use it but
+        // blockquote's contents are optional while noscript's contents
+        // are required)
+        foreach ($this->elements as $element) {
+            $this->info[$element] = new HTMLPurifier_ElementDef();
+        }
+        $this->info['noscript']->attr = array( 0 => array('Common') );
+        $this->info['noscript']->content_model = 'Heading | List | Block';
+        $this->info['noscript']->content_model_type = 'required';
+        $this->info['script']->attr = array(
+            'defer' => new HTMLPurifier_AttrDef_Enum(array('defer')),
+            'src'   => new HTMLPurifier_AttrDef_URI(true),
+            'type'  => new HTMLPurifier_AttrDef_Enum(array('text/javascript'))
+        );
+        $this->info['script']->content_model = '#PCDATA';
+        $this->info['script']->content_model_type = 'optional';
+        $this->info['script']->attr_transform_post['type'] =
+            new HTMLPurifier_AttrTransform_ScriptRequired();
+    }
+}
+
+?>
\ No newline at end of file