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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { ReadableStream, TextEncoderStream } from 'node:stream/web';
import { Inject, Injectable } from '@nestjs/common';
import { MoreThan } from 'typeorm';
import { format as dateFormat } from 'date-fns';
import { DI } from '@/di-symbols.js';
import type { NotesRepository, PollsRepository, UsersRepository } from '@/models/_.js';
import type Logger from '@/logger.js';
import { DriveService } from '@/core/DriveService.js';
import { createTemp } from '@/misc/create-temp.js';
import type { MiPoll } from '@/models/Poll.js';
import type { MiNote } from '@/models/Note.js';
import { bindThis } from '@/decorators.js';
import { DriveFileEntityService } from '@/core/entities/DriveFileEntityService.js';
import { Packed } from '@/misc/json-schema.js';
import { IdService } from '@/core/IdService.js';
import { NotificationService } from '@/core/NotificationService.js';
import { JsonArrayStream } from '@/misc/JsonArrayStream.js';
import { FileWriterStream } from '@/misc/FileWriterStream.js';
import { QueueLoggerService } from '../QueueLoggerService.js';
import type * as Bull from 'bullmq';
import type { DbJobDataWithUser } from '../types.js';
class NoteStream extends ReadableStream<Record<string, unknown>> {
constructor(
job: Bull.Job,
notesRepository: NotesRepository,
pollsRepository: PollsRepository,
driveFileEntityService: DriveFileEntityService,
idService: IdService,
userId: string,
) {
let exportedNotesCount = 0;
let cursor: MiNote['id'] | null = null;
const serialize = (
note: MiNote,
poll: MiPoll | null,
files: Packed<'DriveFile'>[],
): Record<string, unknown> => {
return {
id: note.id,
text: note.text,
createdAt: idService.parse(note.id).date.toISOString(),
fileIds: note.fileIds,
files: files,
replyId: note.replyId,
renoteId: note.renoteId,
poll: poll,
cw: note.cw,
visibility: note.visibility,
visibleUserIds: note.visibleUserIds,
localOnly: note.localOnly,
reactionAcceptance: note.reactionAcceptance,
};
};
super({
async pull(controller): Promise<void> {
const notes = await notesRepository.find({
where: {
userId,
...(cursor !== null ? { id: MoreThan(cursor) } : {}),
},
take: 100, // 100件ずつ取得
order: { id: 1 },
});
if (notes.length === 0) {
job.updateProgress(100);
controller.close();
}
cursor = notes.at(-1)?.id ?? null;
for (const note of notes) {
const poll = note.hasPoll
? await pollsRepository.findOneByOrFail({ noteId: note.id }) // N+1
: null;
const files = await driveFileEntityService.packManyByIds(note.fileIds); // N+1
const content = serialize(note, poll, files);
controller.enqueue(content);
exportedNotesCount++;
}
const total = await notesRepository.countBy({ userId });
job.updateProgress(exportedNotesCount / total);
},
});
}
}
@Injectable()
export class ExportNotesProcessorService {
private logger: Logger;
constructor(
@Inject(DI.usersRepository)
private usersRepository: UsersRepository,
@Inject(DI.pollsRepository)
private pollsRepository: PollsRepository,
@Inject(DI.notesRepository)
private notesRepository: NotesRepository,
private driveService: DriveService,
private queueLoggerService: QueueLoggerService,
private driveFileEntityService: DriveFileEntityService,
private idService: IdService,
private notificationService: NotificationService,
) {
this.logger = this.queueLoggerService.logger.createSubLogger('export-notes');
}
@bindThis
public async process(job: Bull.Job<DbJobDataWithUser>): Promise<void> {
const user = await this.usersRepository.findOneBy({ id: job.data.user.id });
if (user == null) {
this.logger.debug(`Skip: user ${job.data.user.id} does not exist`);
return;
}
this.logger.info(`Exporting notes of ${job.data.user.id} ...`);
// Create temp file
const [path, cleanup] = await createTemp();
this.logger.debug(`Temp file is ${path}`);
try {
// メモリが足りなくならないようにストリームで処理する
await new NoteStream(
job,
this.notesRepository,
this.pollsRepository,
this.driveFileEntityService,
this.idService,
user.id,
)
.pipeThrough(new JsonArrayStream())
.pipeThrough(new TextEncoderStream())
.pipeTo(new FileWriterStream(path));
this.logger.debug(`Exported to: ${path}`);
const fileName = 'notes-' + dateFormat(new Date(), 'yyyy-MM-dd-HH-mm-ss') + '.json';
const driveFile = await this.driveService.addFile({ user, path, name: fileName, force: true, ext: 'json' });
this.logger.debug(`Exported to: ${driveFile.id}`);
this.notificationService.createNotification(user.id, 'exportCompleted', {
exportedEntity: 'note',
fileId: driveFile.id,
});
} finally {
cleanup();
}
}
}
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