mirror of https://github.com/jkjoy/sunpeiwen.git
31 lines
631 B
JavaScript
31 lines
631 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
const { createHash } = require('crypto');
|
||
|
|
const { stringify } = require('querystring');
|
||
|
|
|
||
|
|
const Cache = require('./cache');
|
||
|
|
const cache = new Cache();
|
||
|
|
|
||
|
|
function md5(str) {
|
||
|
|
return createHash('md5').update(str).digest('hex');
|
||
|
|
}
|
||
|
|
|
||
|
|
function gravatarHelper(email, options) {
|
||
|
|
if (typeof options === 'number') {
|
||
|
|
options = {s: options};
|
||
|
|
}
|
||
|
|
|
||
|
|
const hash = cache.has(email) ? cache.get(email) : md5(email.toLowerCase());
|
||
|
|
let str = `https://www.gravatar.com/avatar/${hash}`;
|
||
|
|
|
||
|
|
const qs = stringify(options);
|
||
|
|
|
||
|
|
if (qs) str += `?${qs}`;
|
||
|
|
|
||
|
|
cache.set('email', hash);
|
||
|
|
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = gravatarHelper;
|