リモートユーザーのノート/フォロー/フォロワー数をリモートサーバーの情報と同じように見えるように (#362)

* test

* Update CHANGELOG_CHERRYPICK.md

CHANGELOG_CHERRYPICK.md

@@ -34,6 +34,7 @@
 - 타임라인 소개 추가
 - 이용 약관을 서버 메뉴에서 볼 수 있도록
 - 계정 초기 설정과 타임라인 튜토리얼을 다시 진행할 수 있도록
+- 리모트 사용자의 노트/팔로잉/팔로워 수를 리모트 서버의 정보와 동일하게 보이도록
 - 유저 메뉴에서 '리모트 유저 정보 갱신'을 진행할 수 있도록
 - 설정에서 변경 가능한 옵션은 다이얼로그에서 안내하도록 주석 추가
 

packages/backend/src/core/activitypub/models/ApPersonService.ts

@@ -279,6 +279,51 @@ export class ApPersonService implements OnModuleInit {
 			throw new Error('unexpected schema of person url: ' + url);
 		}
 
+		let followersCount: number | undefined;
+
+		if (typeof person.followers === 'string') {
+			try {
+				const data = await fetch(person.followers, {
+					headers: { Accept: 'application/json' },
+				});
+				const jsonData = JSON.parse(await data.text());
+
+				followersCount = jsonData.totalItems;
+			} catch {
+				followersCount = undefined;
+			}
+		}
+
+		let followingCount: number | undefined;
+
+		if (typeof person.following === 'string') {
+			try {
+				const data = await fetch(person.following, {
+					headers: { Accept: 'application/json' },
+				});
+				const jsonData = JSON.parse(await data.text());
+
+				followingCount = jsonData.totalItems;
+			} catch (e) {
+				followingCount = undefined;
+			}
+		}
+
+		let notesCount: number | undefined;
+
+		if (typeof person.outbox === 'string') {
+			try {
+				const data = await fetch(person.outbox, {
+					headers: { Accept: 'application/json' },
+				});
+				const jsonData = JSON.parse(await data.text());
+
+				notesCount = jsonData.totalItems;
+			} catch (e) {
+				notesCount = undefined;
+			}
+		}
+
 		// Create user
 		let user: MiRemoteUser | null = null;
 
@@ -312,6 +357,30 @@ export class ApPersonService implements OnModuleInit {
 					inbox: person.inbox,
 					sharedInbox: person.sharedInbox ?? person.endpoints?.sharedInbox,
 					followersUri: person.followers ? getApId(person.followers) : undefined,
+					followersCount:
+						followersCount !== undefined
+							? followersCount
+							: person.followers &&
+							typeof person.followers !== 'string' &&
+							isCollectionOrOrderedCollection(person.followers)
+								? person.followers.totalItems
+								: undefined,
+					followingCount:
+						followingCount !== undefined
+							? followingCount
+							: person.following &&
+							typeof person.following !== 'string' &&
+							isCollectionOrOrderedCollection(person.following)
+								? person.following.totalItems
+								: undefined,
+					notesCount:
+						notesCount !== undefined
+							? notesCount
+							: person.outbox &&
+							typeof person.outbox !== 'string' &&
+							isCollectionOrOrderedCollection(person.outbox)
+								? person.outbox.totalItems
+								: undefined,
 					featured: person.featured ? getApId(person.featured) : undefined,
 					uri: person.id,
 					tags,
@@ -440,11 +509,80 @@ export class ApPersonService implements OnModuleInit {
 			throw new Error('unexpected schema of person url: ' + url);
 		}
 
+		let followersCount: number | undefined;
+
+		if (typeof person.followers === 'string') {
+			try {
+				const data = await fetch(person.followers, {
+					headers: { Accept: 'application/json' },
+				});
+				const jsonData = JSON.parse(await data.text());
+
+				followersCount = jsonData.totalItems;
+			} catch {
+				followersCount = undefined;
+			}
+		}
+
+		let followingCount: number | undefined;
+
+		if (typeof person.following === 'string') {
+			try {
+				const data = await fetch(person.following, {
+					headers: { Accept: 'application/json' },
+				});
+				const jsonData = JSON.parse(await data.text());
+
+				followingCount = jsonData.totalItems;
+			} catch {
+				followingCount = undefined;
+			}
+		}
+
+		let notesCount: number | undefined;
+
+		if (typeof person.outbox === 'string') {
+			try {
+				const data = await fetch(person.outbox, {
+					headers: { Accept: 'application/json' },
+				});
+				const jsonData = JSON.parse(await data.text());
+
+				notesCount = jsonData.totalItems;
+			} catch (e) {
+				notesCount = undefined;
+			}
+		}
+
 		const updates = {
 			lastFetchedAt: new Date(),
 			inbox: person.inbox,
 			sharedInbox: person.sharedInbox ?? person.endpoints?.sharedInbox,
 			followersUri: person.followers ? getApId(person.followers) : undefined,
+			followersCount:
+				followersCount !== undefined
+					? followersCount
+					: person.followers &&
+					typeof person.followers !== 'string' &&
+					isCollectionOrOrderedCollection(person.followers)
+						? person.followers.totalItems
+						: undefined,
+			followingCount:
+				followingCount !== undefined
+					? followingCount
+					: person.following &&
+					typeof person.following !== 'string' &&
+					isCollectionOrOrderedCollection(person.following)
+						? person.following.totalItems
+						: undefined,
+			notesCount:
+				notesCount !== undefined
+					? notesCount
+					: person.outbox &&
+					typeof person.outbox !== 'string' &&
+					isCollectionOrOrderedCollection(person.outbox)
+						? person.outbox.totalItems
+						: undefined,
 			featured: person.featured,
 			emojis: emojiNames,
 			name: truncate(person.name, nameLength),
@@ -587,7 +725,7 @@ export class ApPersonService implements OnModuleInit {
 
 		// Resolve to Object(may be Note) arrays
 		const unresolvedItems = isCollection(collection) ? collection.items : collection.orderedItems;
-		const items = await Promise.all(toArray(unresolvedItems).map(x => _resolver.resolve(x)));
+		const items = await Promise.all(toArray(unresolvedItems).map(x => _resolver?.resolve(x)));
 
 		// Resolve and regist Notes
 		const limit = promiseLimit<MiNote | null>(2);

packages/backend/src/core/entities/UserEntityService.ts

@@ -421,8 +421,8 @@ export class UserEntityService implements OnModuleInit {
 				birthday: profile!.birthday,
 				lang: profile!.lang,
 				fields: profile!.fields,
-				followersCount: followersCount ?? 0,
-				followingCount: followingCount ?? 0,
+				followersCount: followersCount ?? '?',
+				followingCount: followingCount ?? '?',
 				notesCount: user.notesCount,
 				pinnedNoteIds: pins.map(pin => pin.noteId),
 				pinnedNotes: this.noteEntityService.packMany(pins.map(pin => pin.note!), me, {