From 7f8730c3add146f1ba107e6fc22d1f5a8348ed8b Mon Sep 17 00:00:00 2001
From: Armen Kesablyan
Date: Tue, 7 Feb 2012 16:43:22 -0800
Subject: Refactored rich text editor location

---
 .../rich-text-editor.reel/rich-text-sanitizer.js   | 132 +++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 node_modules/labs/rich-text-editor.reel/rich-text-sanitizer.js

(limited to 'node_modules/labs/rich-text-editor.reel/rich-text-sanitizer.js')

diff --git a/node_modules/labs/rich-text-editor.reel/rich-text-sanitizer.js b/node_modules/labs/rich-text-editor.reel/rich-text-sanitizer.js
new file mode 100644
index 00000000..3282d3e6
--- /dev/null
+++ b/node_modules/labs/rich-text-editor.reel/rich-text-sanitizer.js
@@ -0,0 +1,132 @@
+/* <copyright>
+ This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
+ No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
+ (c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
+ </copyright> */
+/**
+	@module "montage/ui/rich-text-sanitizer.js"
+    @requires montage/core/core
+*/
+var Montage = require("montage").Montage;
+
+/**
+    @class module:"montage/ui/rich-text-sanitizer.js".Sanitizer
+    @extends module:montage/core/core.Montage
+*/
+exports.Sanitizer = Montage.create(Montage,/** @lends module:"montage/ui/rich-text-sanitizer.js".Sanitizer# */ {
+
+    willSetValue: {
+        value: function(value, identifier)  {
+            return this._scopeCSS(value, identifier);
+        }
+    },
+
+    didGetValue: {
+        value: function(value, identifier)  {
+            return this._unscopeCSS(value, identifier);
+        }
+    },
+
+    willInsertHTMLData: {
+        value: function(data, identifier)  {
+            return this._scopeCSS(this._removeScript(data), identifier);
+        }
+    },
+
+    _scopeCSS: {
+        enumerable: true,
+        value: function(htmlFragment, identifier) {
+            var identifierSelector = ".editor-" + identifier+ " ";
+
+            if (typeof htmlFragment == "string") {
+                // Extract the style tag and its content
+                htmlFragment = htmlFragment.replace(/(<style ?[^>]*>)([^<]*)(<\/style>)/ig, function(match, pre, style, post) {
+                    // Remove any newlines and tab for easier processing
+                    style = style.replace(/\t|\n|\r/g, function(char) {if (char == "\t") return " "; return ""});
+
+                    // Cleanup any potential leftover from a previous scoping
+                    style = style.replace(/\*\.editor-[^ ] +/g, "body");
+                    style = style.replace(/\.editor-[^ ]+ /g, "");
+
+                    // Extract the selectors for each css block
+                    style = style.replace(/([^{]+)({[^}]*})/ig, function(match, selectors, rules) {
+
+                        // Split the selectors and add the identifierSelector
+                        selectors = selectors.replace(/ *([^,]+)/g, function(match, selector) {
+                            // convert body selector
+                            if (selector.toLowerCase() == "body") {
+                                return "*" + identifierSelector;
+                            } else {
+                                return identifierSelector + selector;
+                            }
+                        })
+                        return selectors + rules;
+                    })
+                    return pre + style + post;
+                });
+            }
+
+            return htmlFragment;
+        }
+    },
+
+    _unscopeCSS: {
+        enumerable: true,
+        value: function(htmlFragment, identifier) {
+
+            if (typeof htmlFragment == "string") {
+                // Extract the style tag and its content
+                htmlFragment = htmlFragment.replace(/(<style ?[^>]*>)([^<]*)(<\/style>)/ig, function(match, pre, style, post) {
+                    style = style.replace(/\*\.editor-[^ ] +/g, "body");
+                    style = style.replace(/\.editor-[^ ]+ /g, "");
+                    return pre + style + post;
+                });
+            }
+            return htmlFragment;
+        }
+    },
+
+    _removeScript: {
+        enumerable: true,
+        value: function(htmlFragment) {
+            /*
+                Will remove any script tag, onXXX handlers and javascript URLs
+             */
+            var div = document.createElement("div"),
+                _removeScript = function(element) {
+                    var children = element.children,
+                        child,
+                        nbrChildren = children.length,
+                        attributes = element.attributes,
+                        attribute,
+                        nbrAttributes = attributes.length,
+                        i;
+
+                for (i = 0; i < nbrAttributes; i ++) {
+                    attribute = attributes[i];
+                    if (attribute.name.match(/^on[a-z]+/i) || attribute.value.match(/^javascript:/)) {
+                        element.removeAttribute(attribute.name);
+                        i --;
+                        nbrAttributes --;
+                    }
+                }
+
+                for (i = 0; i < nbrChildren; i ++) {
+                    child = children[i];
+                    if (child.tagName == "SCRIPT") {
+                        child.parentNode.removeChild(child);
+                        i --;
+                        nbrChildren --;
+                    } else {
+                        _removeScript(child);
+                    }
+                }
+            };
+
+            div.innerHTML = htmlFragment;
+            _removeScript(div);
+
+            return div.innerHTML;
+        }
+    }
+});
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