1 files changed, 105 insertions, 0 deletions
diff --git a/packages/backend/src/server/api/endpoints/users/show.ts b/packages/backend/src/server/api/endpoints/users/show.ts
new file mode 100644
index 0000000000..f056983636
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/users/show.ts
@@ -0,0 +1,105 @@
+import $ from 'cafy';
+import { resolveUser } from '@/remote/resolve-user';
+import define from '../../define';
+import { apiLogger } from '../../logger';
+import { ApiError } from '../../error';
+import { ID } from '@/misc/cafy-id';
+import { Users } from '@/models/index';
+import { In } from 'typeorm';
+import { User } from '@/models/entities/user';
+
+export const meta = {
+	tags: ['users'],
+
+	requireCredential: false as const,
+
+	params: {
+		userId: {
+			validator: $.optional.type(ID),
+		},
+
+		userIds: {
+			validator: $.optional.arr($.type(ID)).unique(),
+		},
+
+		username: {
+			validator: $.optional.str
+		},
+
+		host: {
+			validator: $.optional.nullable.str
+		}
+	},
+
+	res: {
+		type: 'object' as const,
+		optional: false as const, nullable: false as const,
+		ref: 'User',
+	},
+
+	errors: {
+		failedToResolveRemoteUser: {
+			message: 'Failed to resolve remote user.',
+			code: 'FAILED_TO_RESOLVE_REMOTE_USER',
+			id: 'ef7b9be4-9cba-4e6f-ab41-90ed171c7d3c',
+			kind: 'server' as const
+		},
+
+		noSuchUser: {
+			message: 'No such user.',
+			code: 'NO_SUCH_USER',
+			id: '4362f8dc-731f-4ad8-a694-be5a88922a24'
+		},
+	}
+};
+
+export default define(meta, async (ps, me) => {
+	let user;
+
+	const isAdminOrModerator = me && (me.isAdmin || me.isModerator);
+
+	if (ps.userIds) {
+		if (ps.userIds.length === 0) {
+			return [];
+		}
+
+		const users = await Users.find(isAdminOrModerator ? {
+			id: In(ps.userIds)
+		} : {
+			id: In(ps.userIds),
+			isSuspended: false
+		});
+
+		// リクエストされた通りに並べ替え
+		const _users: User[] = [];
+		for (const id of ps.userIds) {
+			_users.push(users.find(x => x.id === id)!);
+		}
+
+		return await Promise.all(_users.map(u => Users.pack(u, me, {
+			detail: true
+		})));
+	} else {
+		// Lookup user
+		if (typeof ps.host === 'string' && typeof ps.username === 'string') {
+			user = await resolveUser(ps.username, ps.host).catch(e => {
+				apiLogger.warn(`failed to resolve remote user: ${e}`);
+				throw new ApiError(meta.errors.failedToResolveRemoteUser);
+			});
+		} else {
+			const q: any = ps.userId != null
+				? { id: ps.userId }
+				: { usernameLower: ps.username!.toLowerCase(), host: null };
+
+			user = await Users.findOne(q);
+		}
+
+		if (user == null || (!isAdminOrModerator && user.isSuspended)) {
+			throw new ApiError(meta.errors.noSuchUser);
+		}
+
+		return await Users.pack(user, me, {
+			detail: true
+		});
+	}
+});