refactoring

Resolve #7779

packages/backend/src/server/api/endpoints/messaging/messages/create.ts

@@ -0,0 +1,148 @@
+import $ from 'cafy';
+import { ID } from '@/misc/cafy-id';
+import define from '../../../define';
+import { ApiError } from '../../../error';
+import { getUser } from '../../../common/getters';
+import { MessagingMessages, DriveFiles, UserGroups, UserGroupJoinings, Blockings } from '@/models/index';
+import { User } from '@/models/entities/user';
+import { UserGroup } from '@/models/entities/user-group';
+import { createMessage } from '@/services/messages/create';
+
+export const meta = {
+	tags: ['messaging'],
+
+	requireCredential: true as const,
+
+	kind: 'write:messaging',
+
+	params: {
+		userId: {
+			validator: $.optional.type(ID),
+		},
+
+		groupId: {
+			validator: $.optional.type(ID),
+		},
+
+		text: {
+			validator: $.optional.str.pipe(MessagingMessages.validateText)
+		},
+
+		fileId: {
+			validator: $.optional.type(ID),
+		}
+	},
+
+	res: {
+		type: 'object' as const,
+		optional: false as const, nullable: false as const,
+		ref: 'MessagingMessage',
+	},
+
+	errors: {
+		recipientIsYourself: {
+			message: 'You can not send a message to yourself.',
+			code: 'RECIPIENT_IS_YOURSELF',
+			id: '17e2ba79-e22a-4cbc-bf91-d327643f4a7e'
+		},
+
+		noSuchUser: {
+			message: 'No such user.',
+			code: 'NO_SUCH_USER',
+			id: '11795c64-40ea-4198-b06e-3c873ed9039d'
+		},
+
+		noSuchGroup: {
+			message: 'No such group.',
+			code: 'NO_SUCH_GROUP',
+			id: 'c94e2a5d-06aa-4914-8fa6-6a42e73d6537'
+		},
+
+		groupAccessDenied: {
+			message: 'You can not send messages to groups that you have not joined.',
+			code: 'GROUP_ACCESS_DENIED',
+			id: 'd96b3cca-5ad1-438b-ad8b-02f931308fbd'
+		},
+
+		noSuchFile: {
+			message: 'No such file.',
+			code: 'NO_SUCH_FILE',
+			id: '4372b8e2-185d-4146-8749-2f68864a3e5f'
+		},
+
+		contentRequired: {
+			message: 'Content required. You need to set text or fileId.',
+			code: 'CONTENT_REQUIRED',
+			id: '25587321-b0e6-449c-9239-f8925092942c'
+		},
+
+		youHaveBeenBlocked: {
+			message: 'You cannot send a message because you have been blocked by this user.',
+			code: 'YOU_HAVE_BEEN_BLOCKED',
+			id: 'c15a5199-7422-4968-941a-2a462c478f7d'
+		},
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	let recipientUser: User | undefined;
+	let recipientGroup: UserGroup | undefined;
+
+	if (ps.userId != null) {
+		// Myself
+		if (ps.userId === user.id) {
+			throw new ApiError(meta.errors.recipientIsYourself);
+		}
+
+		// Fetch recipient (user)
+		recipientUser = await getUser(ps.userId).catch(e => {
+			if (e.id === '15348ddd-432d-49c2-8a5a-8069753becff') throw new ApiError(meta.errors.noSuchUser);
+			throw e;
+		});
+
+		// Check blocking
+		const block = await Blockings.findOne({
+			blockerId: recipientUser.id,
+			blockeeId: user.id,
+		});
+		if (block) {
+			throw new ApiError(meta.errors.youHaveBeenBlocked);
+		}
+	} else if (ps.groupId != null) {
+		// Fetch recipient (group)
+		recipientGroup = await UserGroups.findOne(ps.groupId);
+
+		if (recipientGroup == null) {
+			throw new ApiError(meta.errors.noSuchGroup);
+		}
+
+		// check joined
+		const joining = await UserGroupJoinings.findOne({
+			userId: user.id,
+			userGroupId: recipientGroup.id
+		});
+
+		if (joining == null) {
+			throw new ApiError(meta.errors.groupAccessDenied);
+		}
+	}
+
+	let file = null;
+	if (ps.fileId != null) {
+		file = await DriveFiles.findOne({
+			id: ps.fileId,
+			userId: user.id
+		});
+
+		if (file == null) {
+			throw new ApiError(meta.errors.noSuchFile);
+		}
+	}
+
+	// テキストが無いかつ添付ファイルも無かったらエラー
+	if (ps.text == null && file == null) {
+		throw new ApiError(meta.errors.contentRequired);
+	}
+
+	return await createMessage(user, recipientUser, recipientGroup, ps.text, file);
+});