diff --git a/src/services/drive/add-file.ts b/src/services/drive/add-file.ts
index 64a2f1834..4889b357a 100644
--- a/src/services/drive/add-file.ts
+++ b/src/services/drive/add-file.ts
@@ -10,12 +10,12 @@ import * as debug from 'debug';
 import fileType = require('file-type');
 import prominence = require('prominence');
 
-import DriveFile, { IMetadata, getGridFSBucket } from '../../models/drive-file';
+import DriveFile, { IMetadata, getGridFSBucket, IDriveFile } from '../../models/drive-file';
 import DriveFolder from '../../models/drive-folder';
 import { pack } from '../../models/drive-file';
 import event, { publishDriveStream } from '../../publishers/stream';
 import getAcct from '../../acct/render';
-import config from '../../config';
+import { IUser } from '../../models/user';
 
 const gm = _gm.subClass({
 	imageMagick: true
@@ -34,20 +34,20 @@ const addToGridFS = (name: string, readable: stream.Readable, type: string, meta
 	getGridFSBucket()
 		.then(bucket => new Promise((resolve, reject) => {
 			const writeStream = bucket.openUploadStream(name, { contentType: type, metadata });
-			writeStream.once('finish', (doc) => { resolve(doc); });
+			writeStream.once('finish', resolve);
 			writeStream.on('error', reject);
 			readable.pipe(writeStream);
 		}));
 
 const addFile = async (
-	user: any,
+	user: IUser,
 	path: string,
 	name: string = null,
 	comment: string = null,
 	folderId: mongodb.ObjectID = null,
 	force: boolean = false,
 	uri: string = null
-) => {
+): Promise<IDriveFile> => {
 	log(`registering ${name} (user: ${getAcct(user)}, path: ${path})`);
 
 	// Calculate hash, get content type and get file size
@@ -251,13 +251,13 @@ const addFile = async (
  * @return Object that represents added file
  */
 export default (user: any, file: string | stream.Readable, ...args) => new Promise<any>((resolve, reject) => {
+	const isStream = typeof file === 'object' && typeof file.read === 'function';
+
 	// Get file path
-	new Promise((res: (v: [string, boolean]) => void, rej) => {
+	new Promise<string>((res, rej) => {
 		if (typeof file === 'string') {
-			res([file, false]);
-			return;
-		}
-		if (typeof file === 'object' && typeof file.read === 'function') {
+			res(file);
+		} else if (isStream) {
 			tmpFile()
 				.then(path => {
 					const readable: stream.Readable = file;
@@ -265,22 +265,23 @@ export default (user: any, file: string | stream.Readable, ...args) => new Promi
 					readable
 						.on('error', rej)
 						.on('end', () => {
-							res([path, true]);
+							res(path);
 						})
 						.pipe(writable)
 						.on('error', rej);
 				})
 				.catch(rej);
+		} else {
+			rej(new Error('un-compatible file.'));
 		}
-		rej(new Error('un-compatible file.'));
 	})
-	.then(([path, shouldCleanup]): Promise<any> => new Promise((res, rej) => {
+	.then(path => new Promise<IDriveFile>((res, rej) => {
 		addFile(user, path, ...args)
 			.then(file => {
 				res(file);
-				if (shouldCleanup) {
-					fs.unlink(path, (e) => {
-						if (e) log(e.stack);
+				if (isStream) {
+					fs.unlink(path, e => {
+						if (e) console.error(e.stack);
 					});
 				}
 			})
@@ -288,26 +289,13 @@ export default (user: any, file: string | stream.Readable, ...args) => new Promi
 	}))
 	.then(file => {
 		log(`drive file has been created ${file._id}`);
+
 		resolve(file);
 
-		pack(file).then(serializedFile => {
+		pack(file).then(packedFile => {
 			// Publish drive_file_created event
-			event(user._id, 'drive_file_created', serializedFile);
-			publishDriveStream(user._id, 'file_created', serializedFile);
-
-			// Register to search database
-			if (config.elasticsearch.enable) {
-				const es = require('../db/elasticsearch');
-				es.index({
-					index: 'misskey',
-					type: 'drive_file',
-					id: file._id.toString(),
-					body: {
-						name: file.name,
-						userId: user._id.toString()
-					}
-				});
-			}
+			event(user._id, 'drive_file_created', packedFile);
+			publishDriveStream(user._id, 'file_created', packedFile);
 		});
 	})
 	.catch(reject);