rudeshark.net/src/api/endpoints/users/search.ts

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/**
* Module dependencies
*/
import * as mongo from 'mongodb';
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import it from '../../it';
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import User from '../../models/user';
import serialize from '../../serializers/user';
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import config from '../../../conf';
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const escapeRegexp = require('escape-regexp');
/**
* Search a user
*
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* @param {any} params
* @param {any} me
* @return {Promise<any>}
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*/
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module.exports = (params, me) => new Promise(async (res, rej) => {
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// Get 'query' parameter
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const [query, queryError] = it(params.query).expect.string().required().trim().validate(x => x != '').qed();
if (queryError) return rej('invalid query param');
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// Get 'offset' parameter
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const [offset, offsetErr] = it(params.offset).expect.number().min(0).default(0).qed();
if (offsetErr) return rej('invalid offset param');
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// Get 'max' parameter
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const [max, maxErr] = it(params.max).expect.number().range(1, 30).default(10).qed();
if (maxErr) return rej('invalid max param');
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// If Elasticsearch is available, search by it
// If not, search by MongoDB
(config.elasticsearch.enable ? byElasticsearch : byNative)
(res, rej, me, query, offset, max);
});
// Search by MongoDB
async function byNative(res, rej, me, query, offset, max) {
const escapedQuery = escapeRegexp(query);
// Search users
const users = await User
.find({
$or: [{
username_lower: new RegExp(escapedQuery.toLowerCase())
}, {
name: new RegExp(escapedQuery)
}]
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}, {
limit: max
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});
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// Serialize
res(await Promise.all(users.map(async user =>
await serialize(user, me, { detail: true }))));
}
// Search by Elasticsearch
async function byElasticsearch(res, rej, me, query, offset, max) {
const es = require('../../db/elasticsearch');
es.search({
index: 'misskey',
type: 'user',
body: {
size: max,
from: offset,
query: {
simple_query_string: {
fields: ['username', 'name', 'bio'],
query: query,
default_operator: 'and'
}
}
}
}, async (error, response) => {
if (error) {
console.error(error);
return res(500);
}
if (response.hits.total === 0) {
return res([]);
}
const hits = response.hits.hits.map(hit => new mongo.ObjectID(hit._id));
const users = await User
.find({
_id: {
$in: hits
}
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});
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// Serialize
res(await Promise.all(users.map(async user =>
await serialize(user, me, { detail: true }))));
});
}