1 |
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2 |
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3 |
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4 | 'use strict';
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5 |
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6 | const Base = require('./Validator');
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7 |
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8 | module.exports = class UrlValidator extends Base {
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9 |
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10 | constructor (config) {
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11 | super({
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12 | pattern: '^{schemes}:\\/\\/(([A-Z0-9][A-Z0-9_-]*)(\\.[A-Z0-9][A-Z0-9_-]*)+)',
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13 | validSchemes: ['http', 'https'],
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14 | defaultScheme: null,
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15 | maxLength: 2000,
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16 | ...config
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17 | });
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18 | }
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19 |
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20 | getMessage () {
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21 | return this.createMessage(this.message, 'Invalid url');
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22 | }
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23 |
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24 | async validateAttr (attr, model) {
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25 | const value = model.get(attr);
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26 | const message = await this.validateValue(value);
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27 | if (message) {
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28 | this.addError(model, attr, message);
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29 | } else if (this.defaultScheme !== null && !value.includes('://')) {
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30 | model.set(attr, `${this.defaultScheme}://${value}`);
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31 | }
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32 | }
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33 |
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34 | validateValue (value) {
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35 | if (typeof value !== 'string' || value.length > this.maxLength) {
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36 | return this.getMessage();
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37 | }
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38 | if (this.defaultScheme !== null && !value.includes('://')) {
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39 | value = `${this.defaultScheme}://${value}`;
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40 | }
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41 | let pattern = this.pattern;
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42 | if (pattern.includes('{schemes}')) {
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43 | pattern = pattern.replace('{schemes}', `(${this.validSchemes.join('|')})`);
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44 | }
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45 | return (new RegExp(pattern, 'i')).test(value) ? null : this.getMessage();
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46 | }
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47 | }; |
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