strictNullChecks (#4666)

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src/services/following/create.ts

@@ -14,6 +14,7 @@ import { instanceChart, perUserFollowingChart } from '../chart';
 import { genId } from '../../misc/gen-id';
 import { createNotification } from '../create-notification';
 import { isDuplicateKeyValueError } from '../../misc/is-duplicate-key-value-error';
+import { ensure } from '../../prelude/ensure';
 
 const logger = new Logger('following/create');
 
@@ -115,7 +116,7 @@ export default async function(follower: User, followee: User, requestId?: string
 		if (blocked != null) throw new IdentifiableError('3338392a-f764-498d-8855-db939dcf8c48', 'blocked');
 	}
 
-	const followeeProfile = await UserProfiles.findOne({ userId: followee.id });
+	const followeeProfile = await UserProfiles.findOne(followee.id).then(ensure);
 
 	// フォロー対象が鍵アカウントである or
 	// フォロワーがBotであり、フォロー対象がBotからのフォローに慎重である or

src/services/following/requests/accept-all.ts

@@ -1,6 +1,7 @@
 import accept from './accept';
 import { User } from '../../../models/entities/user';
 import { FollowRequests, Users } from '../../../models';
+import { ensure } from '../../../prelude/ensure';
 
 /**
  * 指定したユーザー宛てのフォローリクエストをすべて承認
@@ -12,7 +13,7 @@ export default async function(user: User) {
 	});
 
 	for (const request of requests) {
-		const follower = await Users.findOne(request.followerId);
+		const follower = await Users.findOne(request.followerId).then(ensure);
 		accept(user, follower);
 	}
 }

src/services/following/requests/accept.ts

@@ -16,7 +16,7 @@ export default async function(followee: User, follower: User) {
 	await insertFollowingDoc(followee, follower);
 
 	if (Users.isRemoteUser(follower) && request) {
-		const content = renderActivity(renderAccept(renderFollow(follower, followee, request.requestId), followee as ILocalUser));
+		const content = renderActivity(renderAccept(renderFollow(follower, followee, request.requestId!), followee as ILocalUser));
 		deliver(followee as ILocalUser, content, follower.inbox);
 	}
 

src/services/following/requests/reject.ts

@@ -13,7 +13,7 @@ export default async function(followee: User, follower: User) {
 			followerId: follower.id
 		});
 
-		const content = renderActivity(renderReject(renderFollow(follower, followee, request.requestId), followee as ILocalUser));
+		const content = renderActivity(renderReject(renderFollow(follower, followee, request!.requestId!), followee as ILocalUser));
 		deliver(followee as ILocalUser, content, follower.inbox);
 	}