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Create and use the Security module.

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Use it to replace code on the client and server side.
This commit is contained in:
Chad Weider 2012-01-18 03:58:13 -08:00
parent 363e168561
commit e0d23e3c5d
6 changed files with 74 additions and 65 deletions
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54
static/js/security.js Normal file
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/**
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var HTML_ENTITY_MAP = {
'&': '&'
, '<': '&lt;'
, '>': '&gt;'
, '"': '&quot;'
, "'": '&#x27;'
, '/': '&#x2F;'
};
// OSWASP Guidlines: &, <, >, ", ' plus forward slash.
var HTML_CHARACTERS_EXPRESSION = /[&"'<>\/]/g;
function escapeHTML(text) {
return text && text.replace(HTML_CHARACTERS_EXPRESSION, function (c) {
return HTML_ENTITY_MAP[c] || c;
});
}
// OSWASP Guidlines: escape all non alphanumeric characters in ASCII space.
var HTML_ATTRIBUTE_CHARACTERS_EXPRESSION =
/[\x00-\x2F\x3A-\x40\5B-\x60\x7B-\xFF]/g;
function escapeHTMLAttribute(text) {
return text && text.replace(HTML_ATTRIBUTE_CHARACTERS_EXPRESSION, function (c) {
return "&#x" + ('00' + c.charCodeAt(0).toString(16)).slice(-2) + ";";
});
};
// OSWASP Guidlines: escape all non alphanumeric characters in ASCII space.
var JAVASCRIPT_CHARACTERS_EXPRESSION =
/[\x00-\x2F\x3A-\x40\5B-\x60\x7B-\xFF]/g;
function escapeJavaScriptData(text) {
return text && text.replace(JAVASCRIPT_CHARACTERS_EXPRESSION, function (c) {
return "\\x" + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
});
}
exports.escapeHTML = escapeHTML;
exports.escapeHTMLAttribute = escapeHTMLAttribute;
exports.escapeJavaScriptData = escapeJavaScriptData;