/usr/lib/nodejs/security.js is in node-security 1.0.0~git20130515-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (c) 2011 Chad Weider
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
var HTML_ENTITY_MAP = {
'&': '&'
, '<': '<'
, '>': '>'
, '"': '"'
, "'": '''
, '/': '/'
};
// OSWASP Guidlines: &, <, >, ", ' plus forward slash.
var HTML_CHARACTERS_EXPRESSION = /[&"'<>\/]/gm;
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\x5B-\x60\x7B-\xFF]/gm;
function escapeHTMLAttribute(text) {
return text && text.replace(HTML_ATTRIBUTE_CHARACTERS_EXPRESSION, function (c) {
return HTML_ENTITY_MAP[c] || "&#x" + ('00' + c.charCodeAt(0).toString(16)).slice(-2) + ";";
});
};
// OSWASP Guidlines: escape all non alphanumeric characters in ASCII space.
// Also include line breaks (for literal).
var JAVASCRIPT_CHARACTERS_EXPRESSION =
/[\x00-\x2F\x3A-\x40\x5B-\x60\x7B-\xFF\u2028\u2029]/gm;
function encodeJavaScriptIdentifier(text) {
return text && text.replace(JAVASCRIPT_CHARACTERS_EXPRESSION, function (c) {
return "\\u" + ('0000' + c.charCodeAt(0).toString(16)).slice(-4);
});
}
function encodeJavaScriptString(text) {
return text && '"' + encodeJavaScriptIdentifier(text) + '"';
}
// This is not great, but it is useful.
var JSON_STRING_LITERAL_EXPRESSION =
/"(?:\\.|[^"])*"/gm;
function encodeJavaScriptData(object) {
return JSON.stringify(object).replace(JSON_STRING_LITERAL_EXPRESSION, function (string) {
return encodeJavaScriptString(JSON.parse(string));
});
}
// OSWASP Guidlines: escape all non alphanumeric characters in ASCII space.
var CSS_CHARACTERS_EXPRESSION =
/[\x00-\x2F\x3A-\x40\x5B-\x60\x7B-\xFF]/gm;
function encodeCSSIdentifier(text) {
return text && text.replace(CSS_CHARACTERS_EXPRESSION, function (c) {
return "\\" + ('000000' + c.charCodeAt(0).toString(16)).slice(-6);
});
}
function encodeCSSString(text) {
return text && '"' + encodeCSSIdentifier(text) + '"';
}
exports.escapeHTML = escapeHTML;
exports.escapeHTMLAttribute = escapeHTMLAttribute;
exports.encodeJavaScriptIdentifier = encodeJavaScriptIdentifier;
exports.encodeJavaScriptString = encodeJavaScriptString;
exports.encodeJavaScriptData = encodeJavaScriptData;
exports.encodeCSSIdentifier = encodeCSSIdentifier;
exports.encodeCSSString = encodeCSSString;
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