egirlskey/packages/backend/src/core/activitypub/models/ApImageService.ts
2024-02-19 10:47:42 +01:00

107 lines
3.6 KiB
TypeScript

/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { Inject, Injectable } from '@nestjs/common';
import { DI } from '@/di-symbols.js';
import type { DriveFilesRepository } from '@/models/_.js';
import type { MiRemoteUser } from '@/models/User.js';
import type { MiDriveFile } from '@/models/DriveFile.js';
import { MetaService } from '@/core/MetaService.js';
import { truncate } from '@/misc/truncate.js';
import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/const.js';
import { DriveService } from '@/core/DriveService.js';
import type Logger from '@/logger.js';
import { bindThis } from '@/decorators.js';
import { checkHttps } from '@/misc/check-https.js';
import { FederatedInstanceService } from '@/core/FederatedInstanceService.js';
import { ApResolverService } from '../ApResolverService.js';
import { ApLoggerService } from '../ApLoggerService.js';
import type { IObject } from '../type.js';
@Injectable()
export class ApImageService {
private logger: Logger;
constructor(
@Inject(DI.driveFilesRepository)
private driveFilesRepository: DriveFilesRepository,
private metaService: MetaService,
private apResolverService: ApResolverService,
private driveService: DriveService,
private apLoggerService: ApLoggerService,
private federatedInstanceService: FederatedInstanceService,
) {
this.logger = this.apLoggerService.logger;
}
/**
* Imageを作成します。
*/
@bindThis
public async createImage(actor: MiRemoteUser, value: string | IObject): Promise<MiDriveFile> {
// 投稿者が凍結されていたらスキップ
if (actor.isSuspended) {
throw new Error('actor has been suspended');
}
const image = await this.apResolverService.createResolver().resolve(value);
if (image.url == null) {
throw new Error('invalid image: url not provided');
}
if (typeof image.url !== 'string') {
throw new Error('invalid image: unexpected type of url: ' + JSON.stringify(image.url, null, 2));
}
if (!checkHttps(image.url)) {
throw new Error('invalid image: unexpected schema of url: ' + image.url);
}
this.logger.info(`Creating the Image: ${image.url}`);
const instance = await this.metaService.fetch();
// Cache if remote file cache is on AND either
// 1. remote sensitive file is also on
// 2. or the image is not sensitive
const shouldBeCached = instance.cacheRemoteFiles && (instance.cacheRemoteSensitiveFiles || !image.sensitive);
await this.federatedInstanceService.fetch(actor.host).then(async i => {
if (i.isNSFW) {
image.sensitive = true;
}
});
const file = await this.driveService.uploadFromUrl({
url: image.url,
user: actor,
uri: image.url,
sensitive: image.sensitive,
isLink: !shouldBeCached,
comment: truncate(image.name ?? undefined, DB_MAX_IMAGE_COMMENT_LENGTH),
});
if (!file.isLink || file.url === image.url) return file;
// URLが異なっている場合、同じ画像が以前に異なるURLで登録されていたということなので、URLを更新する
await this.driveFilesRepository.update({ id: file.id }, { url: image.url, uri: image.url });
return await this.driveFilesRepository.findOneByOrFail({ id: file.id });
}
/**
* Imageを解決します。
*
* Misskeyに対象のImageが登録されていればそれを返し、そうでなければ
* リモートサーバーからフェッチしてMisskeyに登録しそれを返します。
*/
@bindThis
public async resolveImage(actor: MiRemoteUser, value: string | IObject): Promise<MiDriveFile> {
// TODO
// リモートサーバーからフェッチしてきて登録
return await this.createImage(actor, value);
}
}