1 files changed, 36 insertions, 18 deletions

diff --git a/packages/backend/src/core/RemoteUserResolveService.ts b/packages/backend/src/core/RemoteUserResolveService.ts
index ff68c24219..e19a245e18 100644
--- a/packages/backend/src/core/RemoteUserResolveService.ts
+++ b/packages/backend/src/core/RemoteUserResolveService.ts
@@ -8,8 +8,9 @@ import type { LocalUser, RemoteUser } from '@/models/entities/User.js';
 import type { Config } from '@/config.js';
 import type Logger from '@/logger.js';
 import { UtilityService } from '@/core/UtilityService.js';
-import { WebfingerService } from '@/core/WebfingerService.js';
+import { ILink, WebfingerService } from '@/core/WebfingerService.js';
 import { RemoteLoggerService } from '@/core/RemoteLoggerService.js';
+import { ApDbResolverService } from '@/core/activitypub/ApDbResolverService.js';
 import { ApPersonService } from '@/core/activitypub/models/ApPersonService.js';
 import { bindThis } from '@/decorators.js';
 
@@ -27,6 +28,7 @@ export class RemoteUserResolveService {
 		private utilityService: UtilityService,
 		private webfingerService: WebfingerService,
 		private remoteLoggerService: RemoteLoggerService,
+		private apDbResolverService: ApDbResolverService,
 		private apPersonService: ApPersonService,
 	) {
 		this.logger = this.remoteLoggerService.logger.createSubLogger('resolve-user');
@@ -35,7 +37,7 @@ export class RemoteUserResolveService {
 	@bindThis
 	public async resolveUser(username: string, host: string | null): Promise<LocalUser | RemoteUser> {
 		const usernameLower = username.toLowerCase();
-	
+
 		if (host == null) {
 			this.logger.info(`return local user: ${usernameLower}`);
 			return await this.usersRepository.findOneBy({ usernameLower, host: IsNull() }).then(u => {
@@ -46,9 +48,9 @@ export class RemoteUserResolveService {
 				}
 			}) as LocalUser;
 		}
-	
+
 		host = this.utilityService.toPuny(host);
-	
+
 		if (this.config.host === host) {
 			this.logger.info(`return local user: ${usernameLower}`);
 			return await this.usersRepository.findOneBy({ usernameLower, host: IsNull() }).then(u => {
@@ -59,39 +61,55 @@ export class RemoteUserResolveService {
 				}
 			}) as LocalUser;
 		}
-	
+
 		const user = await this.usersRepository.findOneBy({ usernameLower, host }) as RemoteUser | null;
-	
+
 		const acctLower = `${usernameLower}@${host}`;
-	
+
 		if (user == null) {
 			const self = await this.resolveSelf(acctLower);
-	
+
+			if (self.href.startsWith(this.config.url)) {
+				const local = this.apDbResolverService.parseUri(self.href);
+				if (local.local && local.type === 'users') {
+					// the LR points to local
+					return (await this.apDbResolverService
+						.getUserFromApId(self.href)
+						.then((u) => {
+							if (u == null) {
+								throw new Error('local user not found');
+							} else {
+								return u;
+							}
+						})) as LocalUser;
+				}
+			}
+
 			this.logger.succ(`return new remote user: ${chalk.magenta(acctLower)}`);
 			return await this.apPersonService.createPerson(self.href);
 		}
-	
-		// ユーザー情報が古い場合は、WebFilgerからやりなおして返す
+
+		// ユーザー情報が古い場合は、WebFingerからやりなおして返す
 		if (user.lastFetchedAt == null || Date.now() - user.lastFetchedAt.getTime() > 1000 * 60 * 60 * 24) {
 			// 繋がらないインスタンスに何回も試行するのを防ぐ, 後続の同様処理の連続試行を防ぐ ため 試行前にも更新する
 			await this.usersRepository.update(user.id, {
 				lastFetchedAt: new Date(),
 			});
-	
+
 			this.logger.info(`try resync: ${acctLower}`);
 			const self = await this.resolveSelf(acctLower);
-	
+
 			if (user.uri !== self.href) {
 				// if uri mismatch, Fix (user@host <=> AP's Person id(RemoteUser.uri)) mapping.
 				this.logger.info(`uri missmatch: ${acctLower}`);
 				this.logger.info(`recovery missmatch uri for (username=${username}, host=${host}) from ${user.uri} to ${self.href}`);
-	
+
 				// validate uri
 				const uri = new URL(self.href);
 				if (uri.hostname !== host) {
 					throw new Error('Invalid uri');
 				}
-	
+
 				await this.usersRepository.update({
 					usernameLower,
 					host: host,
@@ -101,9 +119,9 @@ export class RemoteUserResolveService {
 			} else {
 				this.logger.info(`uri is fine: ${acctLower}`);
 			}
-	
+
 			await this.apPersonService.updatePerson(self.href);
-	
+
 			this.logger.info(`return resynced remote user: ${acctLower}`);
 			return await this.usersRepository.findOneBy({ uri: self.href }).then(u => {
 				if (u == null) {
@@ -113,13 +131,13 @@ export class RemoteUserResolveService {
 				}
 			});
 		}
-	
+
 		this.logger.info(`return existing remote user: ${acctLower}`);
 		return user;
 	}
 
 	@bindThis
-	private async resolveSelf(acctLower: string) {
+	private async resolveSelf(acctLower: string): Promise<ILink> {
 		this.logger.info(`WebFinger for ${chalk.yellow(acctLower)}`);
 		const finger = await this.webfingerService.webfinger(acctLower).catch(err => {
 			this.logger.error(`Failed to WebFinger for ${chalk.yellow(acctLower)}: ${ err.statusCode ?? err.message }`);