| 1 | ;
|
| 2 |
|
| 3 | var string = require('./string');
|
| 4 |
|
| 5 | /**
|
| 6 | * Escape HTML characters in a string.
|
| 7 | *
|
| 8 | * ```js
|
| 9 | * <%= escapeHtml("<span>foo</span>") %>
|
| 10 | * //=> <span>foo</span>
|
| 11 | * ```
|
| 12 | *
|
| 13 | * @param {String} `str` String of HTML with characters to escape.
|
| 14 | * @return {String}
|
| 15 | * @api public
|
| 16 | */
|
| 17 |
|
| 18 | exports.escapeHtml = function escapeHtml(str) {
|
| 19 | if (!string.isString(str)) return '';
|
| 20 | return str.replace(/[\/"'&<>]/g, function(ch) {
|
| 21 | return ({
|
| 22 | '"': '"',
|
| 23 | '&': '&',
|
| 24 | '/': '/',
|
| 25 | '<': '<',
|
| 26 | '>': '>',
|
| 27 | '\'': '''
|
| 28 | })[ch];
|
| 29 | });
|
| 30 | };
|
| 31 |
|
| 32 | /**
|
| 33 | * Strip HTML tags from a string, so that only the text nodes
|
| 34 | * are preserved.
|
| 35 | *
|
| 36 | * ```js
|
| 37 | * <%= sanitize("<span>foo</span>") %>
|
| 38 | * //=> 'foo'
|
| 39 | * ```
|
| 40 | *
|
| 41 | * @param {String} `str` The string of HTML to sanitize.
|
| 42 | * @return {String}
|
| 43 | * @api public
|
| 44 | */
|
| 45 |
|
| 46 | exports.sanitize = function sanitize(str) {
|
| 47 | return string.isString(str) ? str.replace(/(<([^>]+)>)/g, '').trim() : '';
|
| 48 | };
|