impl /_api/v3/page/exist

apps/app/src/server/routes/apiv3/page/check-page-existence.ts

@@ -0,0 +1,54 @@
+import type { IPage, IUserHasId } from '@growi/core';
+import { ErrorV3 } from '@growi/core/dist/models';
+import type { Request, RequestHandler } from 'express';
+import type { ValidationChain } from 'express-validator';
+import { query } from 'express-validator';
+import mongoose from 'mongoose';
+
+import type Crowi from '~/server/crowi';
+import type { PageModel } from '~/server/models/page';
+import loggerFactory from '~/utils/logger';
+
+import { apiV3FormValidator } from '../../../middlewares/apiv3-form-validator';
+import type { ApiV3Response } from '../interfaces/apiv3-response';
+
+
+const logger = loggerFactory('growi:routes:apiv3:page:check-page-existence');
+
+
+type ReqQuery = {
+  path: string,
+}
+
+interface Req extends Request<ReqQuery, ApiV3Response> {
+  user: IUserHasId,
+}
+
+type CreatePageHandlersFactory = (crowi: Crowi) => RequestHandler[];
+
+export const checkPageExistenceHandlersFactory: CreatePageHandlersFactory = (crowi) => {
+  const Page = mongoose.model<IPage, PageModel>('Page');
+
+  const accessTokenParser = require('../../../middlewares/access-token-parser')(crowi);
+  const loginRequired = require('../../../middlewares/login-required')(crowi, true);
+
+  // define validators for req.body
+  const validator: ValidationChain[] = [
+    query('path').isString().withMessage('The param "path" must be specified'),
+  ];
+
+  return [
+    accessTokenParser, loginRequired,
+    validator, apiV3FormValidator,
+    async(req: Req, res: ApiV3Response) => {
+      const { path } = req.query;
+
+      if (path == null || Array.isArray(path)) {
+        return res.apiv3Err(new ErrorV3('The param "path" must be an page id'));
+      }
+
+      const count = await Page.countByPathAndViewer(path.toString(), req.user);
+      res.apiv3({ isExist: count > 0 });
+    },
+  ];
+};

apps/app/src/server/routes/apiv3/page/index.js

@@ -20,6 +20,7 @@ import { preNotifyService } from '~/server/service/pre-notify';
 import { divideByType } from '~/server/util/granted-group';
 import loggerFactory from '~/utils/logger';
 
+import { checkPageExistenceHandlersFactory } from './check-page-existence';
 import { createPageHandlersFactory } from './create-page';
 import { updatePageHandlersFactory } from './update-page';
 
@@ -314,6 +315,8 @@ module.exports = (crowi) => {
     return res.apiv3({ page, pages });
   });
 
+  router.get('/exist', checkPageExistenceHandlersFactory(crowi));
+
   /**
    * @swagger
    *