mirror of https://github.com/jkjoy/sunpeiwen.git
29 lines
613 B
JavaScript
29 lines
613 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
const crypto = require('crypto');
|
||
|
|
|
||
|
|
let md5 = function (str, encoding) {
|
||
|
|
return crypto.createHash('md5').update(str).digest(encoding || 'hex');
|
||
|
|
};
|
||
|
|
|
||
|
|
let getFileMd5 = function (readStream, callback) {
|
||
|
|
let md5 = crypto.createHash('md5');
|
||
|
|
readStream.on('data', function (chunk) {
|
||
|
|
md5.update(chunk);
|
||
|
|
});
|
||
|
|
readStream.on('error', function (err) {
|
||
|
|
callback(err);
|
||
|
|
});
|
||
|
|
readStream.on('end', function () {
|
||
|
|
let hash = md5.digest('hex');
|
||
|
|
callback(null, hash);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
let util = {
|
||
|
|
md5: md5,
|
||
|
|
getFileMd5: getFileMd5,
|
||
|
|
};
|
||
|
|
|
||
|
|
module.exports = util;
|