| 1 | /*
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| 2 | * Copyright 2018 Adobe. All rights reserved.
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| 3 | * This file is licensed to you under the Apache License, Version 2.0 (the "License");
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| 4 | * you may not use this file except in compliance with the License. You may obtain a copy
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| 5 | * of the License at http://www.apache.org/licenses/LICENSE-2.0
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| 6 | *
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| 7 | * Unless required by applicable law or agreed to in writing, software distributed under
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| 8 | * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
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| 9 | * OF ANY KIND, either express or implied. See the License for the specific language
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| 10 | * governing permissions and limitations under the License.
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| 11 | */
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| 12 | const crypto = require('crypto');
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| 13 | const fs = require('fs');
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| 14 |
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| 15 | function md5(string, encoding = 'hex') {
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| 16 | return crypto
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| 17 | .createHash('md5')
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| 18 | .update(string)
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| 19 | .digest(encoding);
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| 20 | }
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| 21 |
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| 22 | md5.file = async function md5File(filename) {
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| 23 | return new Promise((resolve, reject) => {
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| 24 | const hash = crypto.createHash('md5').setEncoding('hex');
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| 25 | fs.createReadStream(filename)
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| 26 | .on('data', (data) => {
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| 27 | hash.update(data);
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| 28 | })
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| 29 | .on('end', () => {
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| 30 | resolve(hash.digest('hex'));
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| 31 | })
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| 32 | .on('error', reject);
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| 33 | });
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| 34 | };
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| 35 |
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| 36 | module.exports = md5;
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