From 90f8fe7e538bb7e52d2558152a0390e693f39b11 Mon Sep 17 00:00:00 2001
From: Akihiko Odaki <nekomanma@pixiv.co.jp>
Date: Thu, 29 Mar 2018 01:20:40 +0900
Subject: Introduce processor

---
 src/server/api/endpoints/users/search.ts | 98 ++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 src/server/api/endpoints/users/search.ts

(limited to 'src/server/api/endpoints/users/search.ts')

diff --git a/src/server/api/endpoints/users/search.ts b/src/server/api/endpoints/users/search.ts
new file mode 100644
index 0000000000..3c81576440
--- /dev/null
+++ b/src/server/api/endpoints/users/search.ts
@@ -0,0 +1,98 @@
+/**
+ * Module dependencies
+ */
+import * as mongo from 'mongodb';
+import $ from 'cafy';
+import User, { pack } from '../../models/user';
+import config from '../../../../conf';
+const escapeRegexp = require('escape-regexp');
+
+/**
+ * Search a user
+ *
+ * @param {any} params
+ * @param {any} me
+ * @return {Promise<any>}
+ */
+module.exports = (params, me) => new Promise(async (res, rej) => {
+	// Get 'query' parameter
+	const [query, queryError] = $(params.query).string().pipe(x => x != '').$;
+	if (queryError) return rej('invalid query param');
+
+	// Get 'offset' parameter
+	const [offset = 0, offsetErr] = $(params.offset).optional.number().min(0).$;
+	if (offsetErr) return rej('invalid offset param');
+
+	// Get 'max' parameter
+	const [max = 10, maxErr] = $(params.max).optional.number().range(1, 30).$;
+	if (maxErr) return rej('invalid max param');
+
+	// If Elasticsearch is available, search by $
+	// 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.replace('@', '').toLowerCase())
+			}, {
+				name: new RegExp(escapedQuery)
+			}]
+		}, {
+			limit: max
+		});
+
+	// Serialize
+	res(await Promise.all(users.map(async user =>
+		await pack(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
+				}
+			});
+
+		// Serialize
+		res(await Promise.all(users.map(async user =>
+			await pack(user, me, { detail: true }))));
+	});
+}
-- 
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