Resolve #4259

3 files changed, 154 insertions, 1 deletions

diff --git a/src/queue/index.ts b/src/queue/index.ts
index 00a4a48f14..09e0ad59c9 100644
--- a/src/queue/index.ts
+++ b/src/queue/index.ts
@@ -9,6 +9,7 @@ import processDeliver from './processors/deliver';
 import processInbox from './processors/inbox';
 import processDb from './processors/db';
 import { queueLogger } from './logger';
+import { IDriveFile } from '../models/drive-file';
 
 function initializeQueue(name: string) {
 	return new Queue(name, config.redis != null ? {
@@ -145,6 +146,16 @@ export function createExportUserListsJob(user: ILocalUser) {
 	});
 }
 
+export function createImportUserListsJob(user: ILocalUser, fileId: IDriveFile['_id']) {
+	return dbQueue.add('importUserLists', {
+		user: user,
+		fileId: fileId
+	}, {
+		removeOnComplete: true,
+		removeOnFail: true
+	});
+}
+
 export default function() {
 	if (!program.onlyServer) {
 		deliverQueue.process(128, processDeliver);
diff --git a/src/queue/processors/db/import-user-lists.ts b/src/queue/processors/db/import-user-lists.ts
new file mode 100644
index 0000000000..ee1468d5ae
--- /dev/null
+++ b/src/queue/processors/db/import-user-lists.ts
@@ -0,0 +1,140 @@
+import * as Bull from 'bull';
+import * as tmp from 'tmp';
+import * as fs from 'fs';
+import * as util from 'util';
+import * as mongo from 'mongodb';
+import * as request from 'request';
+
+import { queueLogger } from '../../logger';
+import User from '../../../models/user';
+import config from '../../../config';
+import UserList from '../../../models/user-list';
+import DriveFile from '../../../models/drive-file';
+import chalk from 'chalk';
+import { getOriginalUrl } from '../../../misc/get-drive-file-url';
+import parseAcct from '../../../misc/acct/parse';
+import resolveUser from '../../../remote/resolve-user';
+
+const logger = queueLogger.createSubLogger('import-user-lists');
+
+export async function importUserLists(job: Bull.Job, done: any): Promise<void> {
+	logger.info(`Importing user lists of ${job.data.user._id} ...`);
+
+	const user = await User.findOne({
+		_id: new mongo.ObjectID(job.data.user._id.toString())
+	});
+
+	const file = await DriveFile.findOne({
+		_id: new mongo.ObjectID(job.data.fileId.toString())
+	});
+
+	const url = getOriginalUrl(file);
+
+	// Create temp file
+	const [path, cleanup] = await new Promise<[string, any]>((res, rej) => {
+		tmp.file((e, path, fd, cleanup) => {
+			if (e) return rej(e);
+			res([path, cleanup]);
+		});
+	});
+
+	logger.info(`Temp file is ${path}`);
+
+	// write content at URL to temp file
+	await new Promise((res, rej) => {
+		logger.info(`Downloading ${chalk.cyan(url)} ...`);
+
+		const writable = fs.createWriteStream(path);
+
+		writable.on('finish', () => {
+			logger.succ(`Download finished: ${chalk.cyan(url)}`);
+			res();
+		});
+
+		writable.on('error', error => {
+			logger.error(`Download failed: ${chalk.cyan(url)}: ${error}`, {
+				url: url,
+				e: error
+			});
+			rej(error);
+		});
+
+		const requestUrl = new URL(url).pathname.match(/[^\u0021-\u00ff]/) ? encodeURI(url) : url;
+
+		const req = request({
+			url: requestUrl,
+			proxy: config.proxy,
+			timeout: 10 * 1000,
+			headers: {
+				'User-Agent': config.userAgent
+			}
+		});
+
+		req.pipe(writable);
+
+		req.on('response', response => {
+			if (response.statusCode !== 200) {
+				logger.error(`Got ${response.statusCode} (${url})`);
+				writable.close();
+				rej(response.statusCode);
+			}
+		});
+
+		req.on('error', error => {
+			logger.error(`Failed to start download: ${chalk.cyan(url)}: ${error}`, {
+				url: url,
+				e: error
+			});
+			writable.close();
+			rej(error);
+		});
+	});
+
+	logger.succ(`Downloaded to: ${path}`);
+
+	const csv = await util.promisify(fs.readFile)(path, 'utf8');
+
+	for (const line of csv.trim().split('\n')) {
+		const listName = line.split(',')[0].trim();
+		const { username, host } = parseAcct(line.split(',')[1].trim());
+
+		let list = await UserList.findOne({
+			userId: user._id,
+			title: listName
+		});
+
+		if (list == null) {
+			list = await UserList.insert({
+				createdAt: new Date(),
+				userId: user._id,
+				title: listName,
+				userIds: []
+			});
+		}
+
+		let target = host === config.host ? await User.findOne({
+			host: null,
+			usernameLower: username.toLowerCase()
+		}) : await User.findOne({
+			host: host,
+			usernameLower: username.toLowerCase()
+		});
+
+		if (host == null && target == null) continue;
+		if (list.userIds.some(id => id.equals(target._id))) continue;
+
+		if (target == null) {
+			target = await resolveUser(username, host);
+		}
+
+		await UserList.update({ _id: list._id }, {
+			$push: {
+				userIds: target._id
+			}
+		});
+	}
+
+	logger.succ('Imported');
+	cleanup();
+	done();
+}
diff --git a/src/queue/processors/db/index.ts b/src/queue/processors/db/index.ts
index 8ac9c1a3d6..4a97a1c884 100644
--- a/src/queue/processors/db/index.ts
+++ b/src/queue/processors/db/index.ts
@@ -6,6 +6,7 @@ import { exportFollowing } from './export-following';
 import { exportMute } from './export-mute';
 import { exportBlocking } from './export-blocking';
 import { exportUserLists } from './export-user-lists';
+import { importUserLists } from './import-user-lists';
 
 const jobs = {
 	deleteNotes,
@@ -14,7 +15,8 @@ const jobs = {
 	exportFollowing,
 	exportMute,
 	exportBlocking,
-	exportUserLists
+	exportUserLists,
+	importUserLists
 } as any;
 
 export default function(dbQueue: Bull.Queue) {