diff --git a/jest.config.js b/jest.config.js
index a6c6b427..b5a9306d 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -17,6 +17,7 @@ module.exports = {
   globals: {
     'ts-jest': {
       useESM: true,
+      tsConfig: './test/tsconfig.json',
     },
     isDev: process.env.NODE_ENV === 'development',
   },
diff --git a/src/app.module.ts b/src/app.module.ts
index 3a9608e4..c82d22e3 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -1,5 +1,6 @@
-import { MiddlewareConsumer, Module, NestModule } from '@nestjs/common'
+import { MiddlewareConsumer, Module, NestModule, Type } from '@nestjs/common'
 import { APP_FILTER, APP_GUARD, APP_INTERCEPTOR } from '@nestjs/core'
+
 import { AppController } from './app.controller'
 import { AllExceptionsFilter } from './common/filters/any-exception.filter'
 import { RolesGuard } from './common/guard/roles.guard'
@@ -82,8 +83,8 @@ import { LoggerModule } from './processors/logger/logger.module'
     GatewayModule,
     HelperModule,
 
-    isDev ? DebugModule : null,
-  ].filter(Boolean),
+    isDev ? DebugModule : undefined,
+  ].filter(Boolean) as Type<NestModule>[],
   controllers: [AppController],
   providers: [
     {
diff --git a/src/bootstrap.ts b/src/bootstrap.ts
index aaf27ee1..c7c3d7cb 100644
--- a/src/bootstrap.ts
+++ b/src/bootstrap.ts
@@ -1,8 +1,10 @@
 import cluster from 'cluster'
 import { performance } from 'perf_hooks'
+
 import { Logger, RequestMethod, ValidationPipe } from '@nestjs/common'
 import { NestFactory } from '@nestjs/core'
 import { NestFastifyApplication } from '@nestjs/platform-fastify'
+
 import { API_VERSION, CROSS_DOMAIN, PORT } from './app.config'
 import { AppModule } from './app.module'
 import { fastifyApp } from './common/adapters/fastify.adapter'
@@ -11,6 +13,7 @@ import { SpiderGuard } from './common/guard/spider.guard'
 import { LoggingInterceptor } from './common/interceptors/logging.interceptor'
 import { isTest } from './global/env.global'
 import { MyLogger } from './processors/logger/logger.service'
+
 const Origin = Array.isArray(CROSS_DOMAIN.allowedOrigins)
   ? CROSS_DOMAIN.allowedOrigins
   : false
@@ -28,7 +31,7 @@ export async function bootstrap() {
 
   // Origin 如果不是数组就全部允许跨域
   app.enableCors(
-    Origin
+    hosts
       ? {
           origin: (origin, callback) => {
             const allow = hosts.some((host) => host.test(origin))
diff --git a/src/cluster.ts b/src/cluster.ts
index 597b03b2..dcb40bee 100644
--- a/src/cluster.ts
+++ b/src/cluster.ts
@@ -12,7 +12,7 @@ export class Cluster {
       process.on('SIGINT', () => {
         consola.info('Cluster shutting down...')
         for (const id in cluster.workers) {
-          cluster.workers[id].kill()
+          cluster.workers[id]?.kill()
         }
         // exit the master process
         process.exit(0)
@@ -26,9 +26,10 @@ export class Cluster {
 
       cluster.on('fork', (worker) => {
         worker.on('message', (msg) => {
-          Object.keys(cluster.workers).forEach((id) => {
-            cluster.workers[id].send(msg)
-          })
+          cluster.workers &&
+            Object.keys(cluster.workers).forEach((id) => {
+              cluster.workers?.[id]?.send(msg)
+            })
         })
       })
 
diff --git a/src/common/adapters/fastify.adapter.ts b/src/common/adapters/fastify.adapter.ts
index 309379c2..64289491 100644
--- a/src/common/adapters/fastify.adapter.ts
+++ b/src/common/adapters/fastify.adapter.ts
@@ -1,9 +1,12 @@
-import { Logger } from '@nestjs/common'
-import { FastifyAdapter } from '@nestjs/platform-fastify'
 import type { FastifyRequest } from 'fastify'
 import fastifyCookie from 'fastify-cookie'
 import FastifyMultipart from 'fastify-multipart'
+
+import { Logger } from '@nestjs/common'
+import { FastifyAdapter } from '@nestjs/platform-fastify'
+
 import { getIp } from '~/utils'
+
 const app: FastifyAdapter = new FastifyAdapter({
   trustProxy: true,
 })
@@ -35,7 +38,7 @@ app.getInstance().addHook('onRequest', (request, reply, done) => {
 
     return reply.code(418).send()
   } else if (url.match(/\/(adminer|admin|wp-login|phpMyAdmin|\.env)$/gi)) {
-    const isMxSpaceClient = ua.match('mx-space')
+    const isMxSpaceClient = ua?.match('mx-space')
     reply.raw.statusMessage = 'Hey, What the fuck are you doing!'
     reply.raw.statusCode = isMxSpaceClient ? 666 : 200
     logWarn(
diff --git a/src/common/decorator/auth.decorator.ts b/src/common/decorator/auth.decorator.ts
index c8d06f8e..a9474afb 100644
--- a/src/common/decorator/auth.decorator.ts
+++ b/src/common/decorator/auth.decorator.ts
@@ -1,10 +1,13 @@
 import { UseGuards, applyDecorators } from '@nestjs/common'
 import { ApiBearerAuth, ApiUnauthorizedResponse } from '@nestjs/swagger'
-import { JWTAuthGuard } from '../guard/auth.guard'
+
 import { SECURITY } from '~/app.config'
 
+import { JWTAuthGuard } from '../guard/auth.guard'
+
 export function Auth() {
-  const decorators = []
+  const decorators: (ClassDecorator | PropertyDecorator | MethodDecorator)[] =
+    []
   if (!SECURITY.skipAuth) {
     decorators.push(UseGuards(JWTAuthGuard))
   }
diff --git a/src/common/exceptions/master-lost.exception.ts b/src/common/exceptions/master-lost.exception.ts
new file mode 100644
index 00000000..8c509721
--- /dev/null
+++ b/src/common/exceptions/master-lost.exception.ts
@@ -0,0 +1,7 @@
+import { InternalServerErrorException } from '@nestjs/common'
+
+export class MasterLostException extends InternalServerErrorException {
+  constructor() {
+    super('系统异常，站点主人信息已丢失')
+  }
+}
diff --git a/src/common/filters/any-exception.filter.ts b/src/common/filters/any-exception.filter.ts
index 949c5fea..a723b078 100644
--- a/src/common/filters/any-exception.filter.ts
+++ b/src/common/filters/any-exception.filter.ts
@@ -1,5 +1,7 @@
+import { FastifyReply, FastifyRequest } from 'fastify'
 import { WriteStream } from 'fs'
 import { resolve } from 'path'
+
 import {
   ArgumentsHost,
   Catch,
@@ -10,14 +12,15 @@ import {
   Logger,
 } from '@nestjs/common'
 import { Reflector } from '@nestjs/core'
-import { FastifyReply, FastifyRequest } from 'fastify'
-import { getIp } from '../../utils/ip.util'
-import { LoggingInterceptor } from '../interceptors/logging.interceptor'
+
 import { HTTP_REQUEST_TIME } from '~/constants/meta.constant'
 import { LOG_DIR } from '~/constants/path.constant'
 import { REFLECTOR } from '~/constants/system.constant'
 import { isDev } from '~/global/env.global'
 
+import { getIp } from '../../utils/ip.util'
+import { LoggingInterceptor } from '../interceptors/logging.interceptor'
+
 type myError = {
   readonly status: number
   readonly statusCode?: number
@@ -46,6 +49,9 @@ export class AllExceptionsFilter implements ExceptionFilter {
       (exception as any)?.response?.message ||
       (exception as myError)?.message ||
       ''
+
+    const url = request.raw.url!
+
     if (status === HttpStatus.INTERNAL_SERVER_ERROR) {
       // message && Logger.debug(message, undefined, 'Catch')
       Logger.error(exception, undefined, 'Catch')
@@ -59,7 +65,7 @@ export class AllExceptionsFilter implements ExceptionFilter {
           })
 
         this.errorLogPipe.write(
-          `[${new Date().toISOString()}] ${decodeURI(request.raw.url)}: ${
+          `[${new Date().toISOString()}] ${decodeURI(url)}: ${
             (exception as any)?.response?.message ||
             (exception as myError)?.message
           }\n${(exception as Error).stack}\n`,
@@ -68,9 +74,7 @@ export class AllExceptionsFilter implements ExceptionFilter {
     } else {
       const ip = getIp(request)
       this.logger.warn(
-        `IP: ${ip} 错误信息: (${status}) ${message} Path: ${decodeURI(
-          request.raw.url,
-        )}`,
+        `IP: ${ip} 错误信息: (${status}) ${message} Path: ${decodeURI(url)}`,
       )
     }
     // @ts-ignore
diff --git a/src/common/interceptors/analyze.interceptor.ts b/src/common/interceptors/analyze.interceptor.ts
index a9287033..b4b0ac5a 100644
--- a/src/common/interceptors/analyze.interceptor.ts
+++ b/src/common/interceptors/analyze.interceptor.ts
@@ -4,7 +4,11 @@
  * @module interceptor/analyze
  * @author Innei <https://github.com/Innei>
  */
+import isbot from 'isbot'
+import { Observable } from 'rxjs'
+import UAParser from 'ua-parser-js'
 import { URL } from 'url'
+
 import {
   CallHandler,
   ExecutionContext,
@@ -12,16 +16,13 @@ import {
   NestInterceptor,
 } from '@nestjs/common'
 import { ReturnModelType } from '@typegoose/typegoose'
-import isbot from 'isbot'
-import { Observable } from 'rxjs'
-import UAParser from 'ua-parser-js'
-import { InjectModel } from '~/transformers/model.transformer'
+
 import { RedisKeys } from '~/constants/cache.constant'
 import { AnalyzeModel } from '~/modules/analyze/analyze.model'
 import { OptionModel } from '~/modules/configs/configs.model'
 import { CacheService } from '~/processors/cache/cache.service'
 import { getNestExecutionContextRequest } from '~/transformers/get-req.transformer'
-
+import { InjectModel } from '~/transformers/model.transformer'
 import { getIp } from '~/utils/ip.util'
 import { getRedisKey } from '~/utils/redis.util'
 
@@ -76,7 +77,8 @@ export class AnalyzeInterceptor implements NestInterceptor {
 
     process.nextTick(async () => {
       try {
-        this.parser.setUA(request.headers['user-agent'])
+        request.headers['user-agent'] &&
+          this.parser.setUA(request.headers['user-agent'])
 
         const ua = this.parser.getResult()
 
diff --git a/src/common/middlewares/attach-auth.middleware.ts b/src/common/middlewares/attach-auth.middleware.ts
index 579ba39a..3d0008f6 100644
--- a/src/common/middlewares/attach-auth.middleware.ts
+++ b/src/common/middlewares/attach-auth.middleware.ts
@@ -2,9 +2,10 @@
  * 把 URL Search 上的 `token` 附加到 Header Authorization 上
  * @author Innei <https://innei.ren>
  */
-
 import { IncomingMessage, ServerResponse } from 'http'
+
 import { Injectable, NestMiddleware } from '@nestjs/common'
+
 import { parseRelativeUrl } from '~/utils/ip.util'
 
 @Injectable()
@@ -15,7 +16,7 @@ export class AttachHeaderTokenMiddleware implements NestMiddleware {
     const parser = parseRelativeUrl(url)
 
     if (parser.searchParams.get('token')) {
-      req.headers.authorization = parser.searchParams.get('token')
+      req.headers.authorization = parser.searchParams.get('token') as string
     }
 
     next()
diff --git a/src/modules/aggregate/aggregate.interface.ts b/src/modules/aggregate/aggregate.interface.ts
index 54567448..04b08fc1 100644
--- a/src/modules/aggregate/aggregate.interface.ts
+++ b/src/modules/aggregate/aggregate.interface.ts
@@ -3,8 +3,8 @@ export interface RSSProps {
   url: string
   author: string
   data: {
-    created: Date
-    modified: Date
+    created: Date | null
+    modified: Date | null
     link: string
     title: string
     text: string
diff --git a/src/modules/aggregate/aggregate.service.ts b/src/modules/aggregate/aggregate.service.ts
index 9572b775..8ec172a6 100644
--- a/src/modules/aggregate/aggregate.service.ts
+++ b/src/modules/aggregate/aggregate.service.ts
@@ -1,11 +1,21 @@
-import { URL } from 'url'
-import { FilterQuery } from 'mongoose'
-import { pick } from 'lodash'
 import dayjs from 'dayjs'
-import { AnyParamConstructor } from '@typegoose/typegoose/lib/types'
-import { DocumentType, ReturnModelType } from '@typegoose/typegoose'
-import { OnEvent } from '@nestjs/event-emitter'
+import { pick } from 'lodash'
+import { FilterQuery } from 'mongoose'
+import { URL } from 'url'
+
 import { Inject, Injectable, forwardRef } from '@nestjs/common'
+import { OnEvent } from '@nestjs/event-emitter'
+import { DocumentType, ReturnModelType } from '@typegoose/typegoose'
+import { AnyParamConstructor } from '@typegoose/typegoose/lib/types'
+
+import { CacheKeys, RedisKeys } from '~/constants/cache.constant'
+import { EventBusEvents } from '~/constants/event.constant'
+import { CacheService } from '~/processors/cache/cache.service'
+import { WebEventsGateway } from '~/processors/gateway/web/events.gateway'
+import { addYearCondition } from '~/transformers/db-query.transformer'
+import { getRedisKey } from '~/utils/redis.util'
+import { getShortDate } from '~/utils/time.util'
+
 import { CategoryModel } from '../category/category.model'
 import { CategoryService } from '../category/category.service'
 import { CommentState } from '../comment/comment.model'
@@ -21,13 +31,7 @@ import { RecentlyService } from '../recently/recently.service'
 import { SayService } from '../say/say.service'
 import { TimelineType } from './aggregate.dto'
 import { RSSProps } from './aggregate.interface'
-import { getShortDate } from '~/utils/time.util'
-import { getRedisKey } from '~/utils/redis.util'
-import { addYearCondition } from '~/transformers/db-query.transformer'
-import { WebEventsGateway } from '~/processors/gateway/web/events.gateway'
-import { CacheService } from '~/processors/cache/cache.service'
-import { CacheKeys, RedisKeys } from '~/constants/cache.constant'
-import { EventBusEvents } from '~/constants/event.constant'
+
 @Injectable()
 export class AggregateService {
   constructor(
@@ -120,7 +124,11 @@ export class AggregateService {
     return { notes, posts, says }
   }
 
-  async getTimeline(year: number, type: TimelineType, sortBy: 1 | -1 = 1) {
+  async getTimeline(
+    year: number | undefined,
+    type: TimelineType | undefined,
+    sortBy: 1 | -1 = 1,
+  ) {
     const data: any = {}
     const getPosts = () =>
       this.postService.model
@@ -186,7 +194,9 @@ export class AggregateService {
         .then((list) =>
           list.map((doc) => ({
             url: new URL(`/${doc.slug}`, baseURL),
-            published_at: new Date(doc.modified),
+            published_at: doc.modified
+              ? new Date(doc.modified)
+              : new Date(doc.created!),
           })),
         ),
 
@@ -207,7 +217,9 @@ export class AggregateService {
           list.map((doc) => {
             return {
               url: new URL(`/notes/${doc.nid}`, baseURL),
-              published_at: new Date(doc.modified),
+              published_at: doc.modified
+                ? new Date(doc.modified)
+                : new Date(doc.created!),
             }
           }),
         ),
@@ -224,7 +236,9 @@ export class AggregateService {
                 `/posts/${(doc.category as CategoryModel).slug}/${doc.slug}`,
                 baseURL,
               ),
-              published_at: new Date(doc.modified),
+              published_at: doc.modified
+                ? new Date(doc.modified)
+                : new Date(doc.created!),
             }
           }),
         ),
@@ -276,7 +290,7 @@ export class AggregateService {
       return {
         title: post.title,
         text: post.text,
-        created: post.created,
+        created: post.created!,
         modified: post.modified,
         link: new URL(
           '/posts' + `/${(post.category as CategoryModel).slug}/${post.slug}`,
@@ -291,14 +305,14 @@ export class AggregateService {
       return {
         title: note.title,
         text: isSecret ? '这篇文章暂时没有公开呢' : note.text,
-        created: note.created,
+        created: note.created!,
         modified: note.modified,
         link: new URL(`/notes/${note.nid}`, baseURL).toString(),
       }
     })
     return postsRss
       .concat(notesRss)
-      .sort((a, b) => b.created.getTime() - a.created.getTime())
+      .sort((a, b) => b.created!.getTime() - a.created!.getTime())
       .slice(0, 10)
   }
 
diff --git a/src/modules/analyze/analyze.controller.ts b/src/modules/analyze/analyze.controller.ts
index 02ffe592..63f76ed1 100644
--- a/src/modules/analyze/analyze.controller.ts
+++ b/src/modules/analyze/analyze.controller.ts
@@ -1,7 +1,7 @@
-import { Controller, Delete, Get, HttpCode, Query, Scope } from '@nestjs/common'
 import dayjs from 'dayjs'
-import { AnalyzeDto } from './analyze.dto'
-import { AnalyzeService } from './analyze.service'
+
+import { Controller, Delete, Get, HttpCode, Query, Scope } from '@nestjs/common'
+
 import { Auth } from '~/common/decorator/auth.decorator'
 import { Paginator } from '~/common/decorator/http.decorator'
 import { ApiName } from '~/common/decorator/openapi.decorator'
@@ -11,6 +11,9 @@ import { PagerDto } from '~/shared/dto/pager.dto'
 import { getRedisKey } from '~/utils/redis.util'
 import { getTodayEarly, getWeekStart } from '~/utils/time.util'
 
+import { AnalyzeDto } from './analyze.dto'
+import { AnalyzeService } from './analyze.service'
+
 @Controller({ path: 'analyze', scope: Scope.REQUEST })
 @ApiName
 @Auth()
@@ -151,7 +154,7 @@ export class AnalyzeController {
 
     return Promise.all(
       keys.map(async (key) => {
-        const id = key.split('_').pop()
+        const id = key.split('_').pop()!
 
         return {
           id,
diff --git a/src/modules/auth/auth.service.ts b/src/modules/auth/auth.service.ts
index 6942aa51..28e5ca17 100644
--- a/src/modules/auth/auth.service.ts
+++ b/src/modules/auth/auth.service.ts
@@ -1,17 +1,21 @@
-import { Injectable } from '@nestjs/common'
-import { JwtService } from '@nestjs/jwt'
-import { DocumentType, ReturnModelType } from '@typegoose/typegoose'
 import dayjs from 'dayjs'
 import { isDate, omit } from 'lodash'
 import { customAlphabet } from 'nanoid/async'
-import { TokenDto } from './auth.controller'
-import { JwtPayload } from './interfaces/jwt-payload.interface'
-import { InjectModel } from '~/transformers/model.transformer'
+
+import { Injectable } from '@nestjs/common'
+import { JwtService } from '@nestjs/jwt'
+import { DocumentType, ReturnModelType } from '@typegoose/typegoose'
+
+import { MasterLostException } from '~/common/exceptions/master-lost.exception'
 import {
   TokenModel,
   UserModel as User,
   UserDocument,
 } from '~/modules/user/user.model'
+import { InjectModel } from '~/transformers/model.transformer'
+
+import { TokenDto } from './auth.controller'
+import { JwtPayload } from './interfaces/jwt-payload.interface'
 
 @Injectable()
 export class AuthService {
@@ -21,7 +25,11 @@ export class AuthService {
   ) {}
 
   async signToken(_id: string) {
-    const { authCode } = await this.userModel.findById(_id).select('authCode')
+    const user = await this.userModel.findById(_id).select('authCode')
+    if (!user) {
+      throw new MasterLostException()
+    }
+    const authCode = user.authCode
     const payload = {
       _id,
       authCode,
@@ -29,17 +37,27 @@ export class AuthService {
 
     return this.jwtService.sign(payload)
   }
-  async verifyPayload(payload: JwtPayload): Promise<UserDocument> {
+  async verifyPayload(payload: JwtPayload): Promise<UserDocument | null> {
     const user = await this.userModel.findById(payload._id).select('+authCode')
 
+    if (!user) {
+      throw new MasterLostException()
+    }
+
     return user && user.authCode === payload.authCode ? user : null
   }
-  private async getAccessTokens(): Promise<DocumentType<TokenModel>[]> {
+
+  private async getAccessTokens() {
     return (await this.userModel.findOne().select('apiToken').lean())
-      .apiToken as any
+      ?.apiToken as TokenModel[] | undefined
   }
   async getAllAccessToken() {
-    return (await this.getAccessTokens()).map((token) => ({
+    const tokens = await this.getAccessTokens()
+    if (!tokens) {
+      return []
+    }
+    return tokens.map((token) => ({
+      // @ts-ignore
       id: token._id,
       ...omit(token, ['_id', '__v', 'token']),
     })) as any as TokenModel[]
@@ -47,7 +65,11 @@ export class AuthService {
 
   async getTokenSecret(id: string) {
     const tokens = await this.getAccessTokens()
+    if (!tokens) {
+      return null
+    }
     // note: _id is ObjectId not equal to string
+    // @ts-ignore
     return tokens.find((token) => String(token._id) === id)
   }
 
diff --git a/src/modules/backup/backup.service.ts b/src/modules/backup/backup.service.ts
index 71798a48..ac6cf64f 100644
--- a/src/modules/backup/backup.service.ts
+++ b/src/modules/backup/backup.service.ts
@@ -1,16 +1,17 @@
 import { existsSync, statSync } from 'fs'
 import { readFile, readdir, rm, writeFile } from 'fs/promises'
+import mkdirp from 'mkdirp'
 import { join, resolve } from 'path'
 import { Readable } from 'stream'
-import mkdirp from 'mkdirp'
+import { quiet } from 'zx-cjs'
+
 import {
   BadRequestException,
   Injectable,
   InternalServerErrorException,
   Logger,
 } from '@nestjs/common'
-import { quiet } from 'zx-cjs'
-import { ConfigsService } from '../configs/configs.service'
+
 import { MONGO_DB } from '~/app.config'
 import { BACKUP_DIR, DATA_DIR } from '~/constants/path.constant'
 import { CacheService } from '~/processors/cache/cache.service'
@@ -19,6 +20,8 @@ import { EventTypes } from '~/processors/gateway/events.types'
 import { getMediumDateTime } from '~/utils'
 import { getFolderSize } from '~/utils/system.util'
 
+import { ConfigsService } from '../configs/configs.service'
+
 @Injectable()
 export class BackupService {
   private logger: Logger
@@ -37,7 +40,7 @@ export class BackupService {
       return []
     }
     const backupFilenames = await readdir(backupPath)
-    const backups = []
+    const backups: { filename: string; path: string }[] = []
 
     for (const filename of backupFilenames) {
       const path = resolve(backupPath, filename)
@@ -53,6 +56,7 @@ export class BackupService {
       backups.map(async (item) => {
         const { path } = item
         const size = await getFolderSize(path)
+        // @ts-ignore
         delete item.path
         return { ...item, size }
       }),
diff --git a/src/modules/comment/comment.controller.ts b/src/modules/comment/comment.controller.ts
index 868275a5..68b81265 100644
--- a/src/modules/comment/comment.controller.ts
+++ b/src/modules/comment/comment.controller.ts
@@ -14,16 +14,7 @@ import {
 } from '@nestjs/common'
 import { ApiOperation, ApiParam } from '@nestjs/swagger'
 import { DocumentType } from '@typegoose/typegoose'
-import { UserModel } from '../user/user.model'
-import {
-  CommentDto,
-  CommentRefTypesDto,
-  StateDto,
-  TextOnlyDto,
-} from './comment.dto'
-import { CommentFilterEmailInterceptor } from './comment.interceptor'
-import { CommentModel, CommentState } from './comment.model'
-import { CommentService } from './comment.service'
+
 import { Auth } from '~/common/decorator/auth.decorator'
 import { CurrentUser } from '~/common/decorator/current-user.decorator'
 import { IpLocation, IpRecord } from '~/common/decorator/ip.decorator'
@@ -36,6 +27,18 @@ import { ReplyMailType } from '~/processors/helper/helper.email.service'
 import { MongoIdDto } from '~/shared/dto/id.dto'
 import { PagerDto } from '~/shared/dto/pager.dto'
 import { transformDataToPaginate } from '~/transformers/paginate.transformer'
+
+import { UserModel } from '../user/user.model'
+import {
+  CommentDto,
+  CommentRefTypesDto,
+  StateDto,
+  TextOnlyDto,
+} from './comment.dto'
+import { CommentFilterEmailInterceptor } from './comment.interceptor'
+import { CommentModel, CommentState } from './comment.model'
+import { CommentService } from './comment.service'
+
 @Controller({ path: 'comments' })
 @UseInterceptors(CommentFilterEmailInterceptor)
 @ApiName
@@ -236,6 +239,7 @@ export class CommentController {
       url,
       state: CommentState.Read,
     } as CommentDto
+    // @ts-ignore
     return await this.replyByCid(params, model, undefined, true, ipLocation)
   }
 
diff --git a/src/modules/comment/comment.model.ts b/src/modules/comment/comment.model.ts
index 970d8228..23644450 100644
--- a/src/modules/comment/comment.model.ts
+++ b/src/modules/comment/comment.model.ts
@@ -1,4 +1,6 @@
+import { Query, Types } from 'mongoose'
 import { URL } from 'url'
+
 import {
   DocumentType,
   Ref,
@@ -7,12 +9,13 @@ import {
   prop,
 } from '@typegoose/typegoose'
 import { BeAnObject } from '@typegoose/typegoose/lib/types'
-import { Query, Types } from 'mongoose'
+
+import { BaseModel } from '~/shared/model/base.model'
+import { getAvatar } from '~/utils'
+
 import { NoteModel } from '../note/note.model'
 import { PageModel } from '../page/page.model'
 import { PostModel } from '../post/post.model'
-import { getAvatar } from '~/utils'
-import { BaseModel } from '~/shared/model/base.model'
 
 function autoPopulateSubs(
   this: Query<
@@ -68,7 +71,7 @@ export class CommentModel extends BaseModel {
   url?: string
 
   @prop({ required: true })
-  text!: string
+  text: string
 
   // 0 : 未读
   // 1 : 已读
diff --git a/src/modules/comment/comment.service.ts b/src/modules/comment/comment.service.ts
index 9c0c27d5..ee7bf700 100644
--- a/src/modules/comment/comment.service.ts
+++ b/src/modules/comment/comment.service.ts
@@ -1,21 +1,26 @@
+import { LeanDocument, Types } from 'mongoose'
 import { URL } from 'url'
+
 import { BadRequestException, Injectable, Logger } from '@nestjs/common'
 import { DocumentType } from '@typegoose/typegoose'
 import { BeAnObject } from '@typegoose/typegoose/lib/types'
-import { LeanDocument, Types } from 'mongoose'
-import { ConfigsService } from '../configs/configs.service'
-import { UserService } from '../user/user.service'
-import BlockedKeywords from './block-keywords.json'
-import { CommentModel, CommentRefTypes } from './comment.model'
-import { InjectModel } from '~/transformers/model.transformer'
+
 import { CannotFindException } from '~/common/exceptions/cant-find.exception'
+import { MasterLostException } from '~/common/exceptions/master-lost.exception'
 import { DatabaseService } from '~/processors/database/database.service'
 import {
   EmailService,
   ReplyMailType,
 } from '~/processors/helper/helper.email.service'
 import { WriteBaseModel } from '~/shared/model/base.model'
+import { InjectModel } from '~/transformers/model.transformer'
 import { hasChinese } from '~/utils'
+
+import { ConfigsService } from '../configs/configs.service'
+import { UserService } from '../user/user.service'
+import BlockedKeywords from './block-keywords.json'
+import { CommentModel, CommentRefTypes } from './comment.model'
+
 @Injectable()
 export class CommentService {
   private readonly logger: Logger = new Logger(CommentService.name)
@@ -44,7 +49,7 @@ export class CommentService {
     }
   }
 
-  async checkSpam(doc: Partial<CommentModel>) {
+  async checkSpam(doc: CommentModel) {
     const res = await (async () => {
       const commentOptions = await this.configs.get('commentOptions')
       if (!commentOptions.antiSpam) {
@@ -55,7 +60,11 @@ export class CommentService {
         return false
       }
       if (commentOptions.blockIps) {
+        if (!doc.ip) {
+          return false
+        }
         const isBlock = commentOptions.blockIps.some((ip) =>
+          // @ts-ignore
           new RegExp(ip, 'ig').test(doc.ip),
         )
         if (isBlock) {
@@ -99,13 +108,13 @@ export class CommentService {
     } else {
       const { type: type_, document } =
         await this.databaseService.findGlobalById(id)
-      ref = document
+      ref = document as any
       type = type_ as any
     }
     if (!ref) {
       throw new CannotFindException()
     }
-    const commentIndex = ref.commentsIndex
+    const commentIndex = ref.commentsIndex || 0
     doc.key = `#${commentIndex + 1}`
     const comment = await this.commentModel.create({
       ...doc,
@@ -166,9 +175,15 @@ export class CommentService {
     if (type) {
       const model = this.getModelByRefType(type)
       const doc = await model.findById(id)
+      if (!doc) {
+        throw new CannotFindException()
+      }
       return doc.allowComment ?? true
     } else {
       const { document: doc } = await this.databaseService.findGlobalById(id)
+      if (!doc) {
+        throw new CannotFindException()
+      }
       return doc.allowComment ?? true
     }
   }
@@ -201,16 +216,26 @@ export class CommentService {
     }
 
     this.userService.model.findOne().then(async (master) => {
+      if (!master) {
+        throw new MasterLostException()
+      }
+
       const refType = model.refType
       const refModel = this.getModelByRefType(refType)
       const refDoc = await refModel.findById(model.ref).lean()
-      const time = new Date(model.created)
-      const parent = await this.commentModel.findOne({ _id: model.parent })
+      const time = new Date(model.created!)
+      const parent = await this.commentModel
+        .findOne({ _id: model.parent })
+        .lean()
 
       const parsedTime = `${time.getDate()}/${
         time.getMonth() + 1
       }/${time.getFullYear()}`
 
+      if (!parent || !parent.mail || !refDoc || !master.mail || !model.mail) {
+        return
+      }
+
       this.mailService.sendCommentNotificationMail({
         to: type === ReplyMailType.Owner ? master.mail : parent.mail,
         type,
diff --git a/src/modules/configs/configs.jsonschema.decorator.ts b/src/modules/configs/configs.jsonschema.decorator.ts
index 98ca01f1..569f420f 100644
--- a/src/modules/configs/configs.jsonschema.decorator.ts
+++ b/src/modules/configs/configs.jsonschema.decorator.ts
@@ -4,27 +4,21 @@ import { DecoratorSchema } from 'class-validator-jsonschema/build/decorators'
 export const JSONSchemaPasswordField = (
   title: string,
   schema?: DecoratorSchema,
-): PropertyDecorator =>
+) =>
   JSONSchema({
     title,
     'ui:options': { showPassword: true },
     ...schema,
   })
 
-export const JSONSchemaPlainField = (
-  title: string,
-  schema?: DecoratorSchema,
-): PropertyDecorator =>
+export const JSONSchemaPlainField = (title: string, schema?: DecoratorSchema) =>
   JSONSchema({
     title,
     // 'ui:options': {},
     ...schema,
   })
 
-export const JSONSchemaArrayField = (
-  title: string,
-  schema?: DecoratorSchema,
-): PropertyDecorator =>
+export const JSONSchemaArrayField = (title: string, schema?: DecoratorSchema) =>
   JSONSchema({
     title,
     // 'ui:options': {},
@@ -34,7 +28,7 @@ export const JSONSchemaArrayField = (
 export const JSONSchemaToggleField = (
   title: string,
   schema?: DecoratorSchema,
-): PropertyDecorator =>
+) =>
   JSONSchema({
     title,
     // 'ui:options': {},
@@ -44,7 +38,7 @@ export const JSONSchemaToggleField = (
 export const JSONSchemaNumberField = (
   title: string,
   schema?: DecoratorSchema,
-): PropertyDecorator =>
+) =>
   JSONSchema({
     title,
     // 'ui:options': {},
diff --git a/src/modules/configs/configs.model.ts b/src/modules/configs/configs.model.ts
index f7bc1524..ccf26a3d 100644
--- a/src/modules/configs/configs.model.ts
+++ b/src/modules/configs/configs.model.ts
@@ -1,12 +1,13 @@
-import { Severity, modelOptions, prop } from '@typegoose/typegoose'
 import { Schema } from 'mongoose'
 
+import { Severity, modelOptions, prop } from '@typegoose/typegoose'
+
 @modelOptions({
   options: { allowMixed: Severity.ALLOW, customName: 'Option' },
   schemaOptions: {
     timestamps: {
-      createdAt: null,
-      updatedAt: null,
+      createdAt: false,
+      updatedAt: false,
     },
   },
 })
diff --git a/src/modules/configs/configs.service.ts b/src/modules/configs/configs.service.ts
index a5fc729d..adb8b46b 100644
--- a/src/modules/configs/configs.service.ts
+++ b/src/modules/configs/configs.service.ts
@@ -1,4 +1,10 @@
+import camelcaseKeys from 'camelcase-keys'
+import { ClassConstructor, plainToInstance } from 'class-transformer'
+import { ValidatorOptions, validateSync } from 'class-validator'
 import cluster from 'cluster'
+import { cloneDeep, mergeWith } from 'lodash'
+import { LeanDocument } from 'mongoose'
+
 import {
   BadRequestException,
   Injectable,
@@ -8,11 +14,14 @@ import {
 import { EventEmitter2 } from '@nestjs/event-emitter'
 import { DocumentType, ReturnModelType } from '@typegoose/typegoose'
 import { BeAnObject } from '@typegoose/typegoose/lib/types'
-import camelcaseKeys from 'camelcase-keys'
-import { ClassConstructor, plainToInstance } from 'class-transformer'
-import { ValidatorOptions, validateSync } from 'class-validator'
-import { cloneDeep, mergeWith } from 'lodash'
-import { LeanDocument } from 'mongoose'
+
+import { RedisKeys } from '~/constants/cache.constant'
+import { EventBusEvents } from '~/constants/event.constant'
+import { CacheService } from '~/processors/cache/cache.service'
+import { InjectModel } from '~/transformers/model.transformer'
+import { sleep } from '~/utils'
+import { getRedisKey } from '~/utils/redis.util'
+
 import * as optionDtos from '../configs/configs.dto'
 import { UserModel } from '../user/user.model'
 import { UserService } from '../user/user.service'
@@ -23,12 +32,6 @@ import {
 } from './configs.dto'
 import { IConfig, IConfigKeys } from './configs.interface'
 import { OptionModel } from './configs.model'
-import { InjectModel } from '~/transformers/model.transformer'
-import { RedisKeys } from '~/constants/cache.constant'
-import { EventBusEvents } from '~/constants/event.constant'
-import { CacheService } from '~/processors/cache/cache.service'
-import { sleep } from '~/utils'
-import { getRedisKey } from '~/utils/redis.util'
 
 const allOptionKeys: Set<IConfigKeys> = new Set()
 const map: Record<string, any> = Object.entries(optionDtos).reduce(
@@ -66,7 +69,7 @@ const generateDefaultConfig: () => IConfig = () => ({
     title: 'おかえり~',
     background:
       'https://gitee.com/xun7788/my-imagination/raw/master/images/88426823_p0.jpg',
-    gaodemapKey: null,
+    gaodemapKey: null!,
   },
   terminalOptions: {
     enable: false,
diff --git a/src/modules/feed/feed.controller.ts b/src/modules/feed/feed.controller.ts
index be526c95..390f69d2 100644
--- a/src/modules/feed/feed.controller.ts
+++ b/src/modules/feed/feed.controller.ts
@@ -1,13 +1,16 @@
-import { CacheKey, CacheTTL, Controller, Get, Header } from '@nestjs/common'
 import { minify } from 'html-minifier'
 import xss from 'xss'
-import { AggregateService } from '../aggregate/aggregate.service'
-import { ConfigsService } from '../configs/configs.service'
-import { MarkdownService } from '../markdown/markdown.service'
+
+import { CacheKey, CacheTTL, Controller, Get, Header } from '@nestjs/common'
+
 import { HTTPDecorators } from '~/common/decorator/http.decorator'
 import { ApiName } from '~/common/decorator/openapi.decorator'
 import { CacheKeys } from '~/constants/cache.constant'
 
+import { AggregateService } from '../aggregate/aggregate.service'
+import { ConfigsService } from '../configs/configs.service'
+import { MarkdownService } from '../markdown/markdown.service'
+
 @Controller('feed')
 @ApiName
 export class FeedController {
@@ -43,7 +46,7 @@ export class FeedController {
       <lastBuildDate>${now.toISOString()}</lastBuildDate>
       <language>zh-CN</language>
       <image>
-          <url>${xss(avatar)}</url>
+          <url>${xss(avatar || '')}</url>
           <title>${title}</title>
           <link>${xss(url)}</link>
       </image>
diff --git a/src/modules/health/health.dto.ts b/src/modules/health/health.dto.ts
index 25af2ef1..24899549 100644
--- a/src/modules/health/health.dto.ts
+++ b/src/modules/health/health.dto.ts
@@ -19,8 +19,7 @@ export class LogQueryDto {
   index: number
 
   @IsString()
-  @IsOptional()
-  filename?: string
+  filename: string
 }
 
 export class LogTypeDto {
diff --git a/src/modules/link/link.service.ts b/src/modules/link/link.service.ts
index f048c37b..d4902ed7 100644
--- a/src/modules/link/link.service.ts
+++ b/src/modules/link/link.service.ts
@@ -1,7 +1,10 @@
-import { BadRequestException, Injectable, Logger } from '@nestjs/common'
-import { ConfigsService } from '../configs/configs.service'
-import { LinkModel, LinkState, LinkType } from './link.model'
-import { InjectModel } from '~/transformers/model.transformer'
+import {
+  BadRequestException,
+  Injectable,
+  Logger,
+  NotFoundException,
+} from '@nestjs/common'
+
 import { isDev } from '~/global/env.global'
 import { AdminEventsGateway } from '~/processors/gateway/admin/events.gateway'
 import { EventTypes } from '~/processors/gateway/events.types'
@@ -10,6 +13,10 @@ import {
   LinkApplyEmailType,
 } from '~/processors/helper/helper.email.service'
 import { HttpService } from '~/processors/helper/helper.http.service'
+import { InjectModel } from '~/transformers/model.transformer'
+
+import { ConfigsService } from '../configs/configs.service'
+import { LinkModel, LinkState, LinkType } from './link.model'
 
 @Injectable()
 export class LinkService {
@@ -51,6 +58,10 @@ export class LinkService {
       )
       .lean()
 
+    if (!doc) {
+      throw new NotFoundException()
+    }
+
     return doc
   }
 
diff --git a/src/modules/markdown/markdown.controller.ts b/src/modules/markdown/markdown.controller.ts
index 668e2cf3..2caa5565 100644
--- a/src/modules/markdown/markdown.controller.ts
+++ b/src/modules/markdown/markdown.controller.ts
@@ -1,7 +1,15 @@
+/* eslint-disable @typescript-eslint/no-non-null-assertion */
+import dayjs from 'dayjs'
+import { render } from 'ejs'
+import { minify } from 'html-minifier'
+import JSZip from 'jszip'
+import { isNil } from 'lodash'
 import { join } from 'path'
 import { performance } from 'perf_hooks'
 import { Readable } from 'stream'
 import { URL } from 'url'
+import xss from 'xss'
+
 import {
   Body,
   CacheTTL,
@@ -14,12 +22,16 @@ import {
   Query,
 } from '@nestjs/common'
 import { ApiProperty } from '@nestjs/swagger'
-import dayjs from 'dayjs'
-import { render } from 'ejs'
-import { minify } from 'html-minifier'
-import JSZip from 'jszip'
-import { isNil } from 'lodash'
-import xss from 'xss'
+
+import { Auth } from '~/common/decorator/auth.decorator'
+import { HttpCache } from '~/common/decorator/cache.decorator'
+import { HTTPDecorators } from '~/common/decorator/http.decorator'
+import { ApiName } from '~/common/decorator/openapi.decorator'
+import { IsMaster } from '~/common/decorator/role.decorator'
+import { ArticleTypeEnum } from '~/constants/article.constant'
+import { MongoIdDto } from '~/shared/dto/id.dto'
+import { getShortDateTime } from '~/utils'
+
 import { CategoryModel } from '../category/category.model'
 import { ConfigsService } from '../configs/configs.service'
 import { NoteModel } from '../note/note.model'
@@ -32,14 +44,6 @@ import {
 } from './markdown.dto'
 import { MarkdownYAMLProperty } from './markdown.interface'
 import { MarkdownService } from './markdown.service'
-import { Auth } from '~/common/decorator/auth.decorator'
-import { HttpCache } from '~/common/decorator/cache.decorator'
-import { HTTPDecorators } from '~/common/decorator/http.decorator'
-import { ApiName } from '~/common/decorator/openapi.decorator'
-import { IsMaster } from '~/common/decorator/role.decorator'
-import { ArticleTypeEnum } from '~/constants/article.constant'
-import { MongoIdDto } from '~/shared/dto/id.dto'
-import { getShortDateTime } from '~/utils'
 
 @Controller('markdown')
 @ApiName
@@ -80,7 +84,7 @@ export class MarkdownController {
       T extends {
         text: string
         created?: Date
-        modified: Date
+        modified?: Date | null
         title: string
         slug?: string
       },
@@ -89,7 +93,7 @@ export class MarkdownController {
       extraMetaData: Record<string, any> = {},
     ): MarkdownYAMLProperty => {
       const meta = {
-        created: item.created,
+        created: item.created!,
         modified: item.modified,
         title: item.title,
         slug: item.slug || item.title,
@@ -106,14 +110,14 @@ export class MarkdownController {
     }
     // posts
     const convertPost = posts.map((post) =>
-      convertor(post, {
+      convertor(post!, {
         categories: (post.category as CategoryModel).name,
         type: 'post',
         permalink: `posts/${post.slug}`,
       }),
     )
     const convertNote = notes.map((note) =>
-      convertor(note, {
+      convertor(note!, {
         mood: note.mood,
         weather: note.weather,
         id: note.nid,
@@ -123,7 +127,7 @@ export class MarkdownController {
       }),
     )
     const convertPage = pages.map((page) =>
-      convertor(page, {
+      convertor(page!, {
         subtitle: page.subtitle,
         type: 'page',
         permalink: page.slug,
@@ -206,7 +210,7 @@ export class MarkdownController {
       }
     })()
 
-    const url = new URL(relativePath, webUrl)
+    const url = new URL(relativePath!, webUrl)
 
     const structure = await this.service.getRenderedMarkdownHtmlStructure(
       markdown,
@@ -271,6 +275,7 @@ export class MarkdownController {
   async getRenderedMarkdownHtmlStructure(@Param() params: MongoIdDto) {
     const { id } = params
     const { html, document } = await this.service.renderArticle(id)
+
     return this.service.getRenderedMarkdownHtmlStructure(html, document.title)
   }
 }
diff --git a/src/modules/markdown/markdown.interface.ts b/src/modules/markdown/markdown.interface.ts
index 872e03a9..801357f6 100644
--- a/src/modules/markdown/markdown.interface.ts
+++ b/src/modules/markdown/markdown.interface.ts
@@ -1,6 +1,6 @@
 export type MetaType = {
-  created: Date
-  modified: Date
+  created?: Date | null | undefined
+  modified?: Date | null | undefined
   title: string
   slug: string
 } & Record<string, any>
diff --git a/src/modules/markdown/markdown.service.ts b/src/modules/markdown/markdown.service.ts
index a5e22158..9dbe80d9 100644
--- a/src/modules/markdown/markdown.service.ts
+++ b/src/modules/markdown/markdown.service.ts
@@ -1,20 +1,29 @@
-import { BadRequestException, Injectable, Logger } from '@nestjs/common'
-import { ReturnModelType } from '@typegoose/typegoose'
 import { dump } from 'js-yaml'
 import JSZip from 'jszip'
 import { omit } from 'lodash'
 import { marked } from 'marked'
 import { Types } from 'mongoose'
 import xss from 'xss'
+
+import {
+  BadRequestException,
+  Injectable,
+  InternalServerErrorException,
+  Logger,
+} from '@nestjs/common'
+import { ReturnModelType } from '@typegoose/typegoose'
+
+import { DatabaseService } from '~/processors/database/database.service'
+import { AssetService } from '~/processors/helper/helper.asset.service'
+import { InjectModel } from '~/transformers/model.transformer'
+
 import { CategoryModel } from '../category/category.model'
 import { NoteModel } from '../note/note.model'
 import { PageModel } from '../page/page.model'
 import { PostModel } from '../post/post.model'
 import { DatatypeDto } from './markdown.dto'
 import { MarkdownYAMLProperty } from './markdown.interface'
-import { InjectModel } from '~/transformers/model.transformer'
-import { AssetService } from '~/processors/helper/helper.asset.service'
-import { DatabaseService } from '~/processors/database/database.service'
+
 @Injectable()
 export class MarkdownService {
   constructor(
@@ -40,7 +49,7 @@ export class MarkdownService {
       },
     )
 
-    const insertOrCreateCategory = async (name: string) => {
+    const insertOrCreateCategory = async (name?: string) => {
       if (!name) {
         return
       }
@@ -70,7 +79,9 @@ export class MarkdownService {
     const genDate = this.genDate
     const models = [] as PostModel[]
     const defaultCategory = await this.categoryModel.findOne()
-
+    if (!defaultCategory) {
+      throw new InternalServerErrorException('分类不存在')
+    }
     for await (const item of data) {
       if (!item.meta) {
         models.push({
@@ -214,6 +225,7 @@ ${text.trim()}
     return {
       html: this.renderMarkdownContent(doc.document.text),
       ...doc,
+      document: doc.document,
     }
   }
 
@@ -231,7 +243,7 @@ ${text.trim()}
           level: 'inline',
           name: 'spoiler',
           start(src) {
-            return src.match(/\|/)?.index
+            return src.match(/\|/)?.index ?? -1
           },
           renderer(token) {
             // @ts-ignore
@@ -257,7 +269,7 @@ ${text.trim()}
           level: 'inline',
           name: 'mention',
           start(src) {
-            return src.match(/\(/)?.index
+            return src.match(/\(/)?.index ?? -1
           },
           renderer(token) {
             // @ts-ignore
@@ -281,6 +293,10 @@ ${text.trim()}
 
       renderer: {
         image(src, title, _alt) {
+          if (typeof src !== 'string') {
+            return ''
+          }
+
           const alt = _alt?.match(/^[!¡]/) ? _alt.replace(/^[¡!]/, '') : ''
           if (!alt) {
             return `<img src="${xss(src)}"/>`
diff --git a/src/modules/note/note.controller.ts b/src/modules/note/note.controller.ts
index acd92b87..781c4bb1 100644
--- a/src/modules/note/note.controller.ts
+++ b/src/modules/note/note.controller.ts
@@ -13,14 +13,7 @@ import {
   Query,
 } from '@nestjs/common'
 import { ApiOperation } from '@nestjs/swagger'
-import {
-  ListQueryDto,
-  NidType,
-  NoteQueryDto,
-  PasswordQueryDto,
-} from './note.dto'
-import { NoteModel, PartialNoteModel } from './note.model'
-import { NoteService } from './note.service'
+
 import { Auth } from '~/common/decorator/auth.decorator'
 import { Paginator } from '~/common/decorator/http.decorator'
 import { IpLocation, IpRecord } from '~/common/decorator/ip.decorator'
@@ -35,6 +28,15 @@ import {
   addYearCondition,
 } from '~/transformers/db-query.transformer'
 
+import {
+  ListQueryDto,
+  NidType,
+  NoteQueryDto,
+  PasswordQueryDto,
+} from './note.dto'
+import { NoteModel, PartialNoteModel } from './note.model'
+import { NoteService } from './note.service'
+
 @ApiName
 @Controller({ path: 'notes' })
 export class NoteController {
@@ -221,7 +223,7 @@ export class NoteController {
   ) {
     const id =
       typeof param.id === 'number'
-        ? (await this.noteService.model.findOne({ nid: param.id }).lean())._id
+        ? (await this.noteService.model.findOne({ nid: param.id }).lean())?._id
         : param.id
     if (!id) {
       throw new CannotFindException()
diff --git a/src/modules/note/note.service.ts b/src/modules/note/note.service.ts
index 026f1115..0b17a60d 100644
--- a/src/modules/note/note.service.ts
+++ b/src/modules/note/note.service.ts
@@ -1,17 +1,20 @@
+import { isDefined, isMongoId } from 'class-validator'
+import { FilterQuery } from 'mongoose'
+
 import { Injectable } from '@nestjs/common'
 import { EventEmitter2 } from '@nestjs/event-emitter'
 import { DocumentType } from '@typegoose/typegoose'
-import { isDefined, isMongoId } from 'class-validator'
-import { FilterQuery } from 'mongoose'
-import { NoteModel } from './note.model'
-import { InjectModel } from '~/transformers/model.transformer'
+
 import { CannotFindException } from '~/common/exceptions/cant-find.exception'
 import { EventBusEvents } from '~/constants/event.constant'
 import { EventTypes } from '~/processors/gateway/events.types'
 import { WebEventsGateway } from '~/processors/gateway/web/events.gateway'
 import { ImageService } from '~/processors/helper/helper.image.service'
+import { InjectModel } from '~/transformers/model.transformer'
 import { deleteKeys } from '~/utils'
 
+import { NoteModel } from './note.model'
+
 @Injectable()
 export class NoteService {
   constructor(
@@ -67,7 +70,7 @@ export class NoteService {
 
   checkPasswordToAccess<T extends NoteModel>(
     doc: T,
-    password: string,
+    password?: string,
   ): boolean {
     const hasPassword = doc.password
     if (!hasPassword) {
@@ -113,6 +116,9 @@ export class NoteService {
       await Promise.all([
         this.imageService.recordImageDimensions(this.noteModel, id),
         this.model.findById(id).then((doc) => {
+          if (!doc) {
+            return
+          }
           delete doc.password
           this.webGateway.broadcast(EventTypes.NOTE_UPDATE, doc)
         }),
diff --git a/src/modules/page/page.model.ts b/src/modules/page/page.model.ts
index 0667a735..33842419 100644
--- a/src/modules/page/page.model.ts
+++ b/src/modules/page/page.model.ts
@@ -1,5 +1,3 @@
-import { PartialType } from '@nestjs/mapped-types'
-import { modelOptions, prop } from '@typegoose/typegoose'
 import { Transform } from 'class-transformer'
 import {
   IsEnum,
@@ -9,8 +7,13 @@ import {
   IsString,
   Min,
 } from 'class-validator'
+
+import { PartialType } from '@nestjs/mapped-types'
+import { modelOptions, prop } from '@typegoose/typegoose'
+
 import { WriteBaseModel } from '~/shared/model/base.model'
 import { IsNilOrString } from '~/utils/validator/isNilOrString'
+
 export enum PageType {
   'md' = 'md',
   'html' = 'html',
@@ -28,7 +31,7 @@ export class PageModel extends WriteBaseModel {
   @IsNotEmpty()
   slug!: string
 
-  @prop({ trim: true })
+  @prop({ trim: true, type: String })
   @IsString()
   @IsOptional()
   @IsNilOrString()
diff --git a/src/modules/pageproxy/pageproxy.service.ts b/src/modules/pageproxy/pageproxy.service.ts
index b2bd45c7..19e3b081 100644
--- a/src/modules/pageproxy/pageproxy.service.ts
+++ b/src/modules/pageproxy/pageproxy.service.ts
@@ -1,10 +1,14 @@
-import { URL } from 'url'
-import { Injectable, InternalServerErrorException } from '@nestjs/common'
 import jsdom from 'jsdom'
-import { ConfigsService } from '../configs/configs.service'
-import { InitService } from '../init/init.service'
+import { URL } from 'url'
+
+import { Injectable, InternalServerErrorException } from '@nestjs/common'
+
 import PKG from '~/../package.json'
 import { API_VERSION } from '~/app.config'
+
+import { ConfigsService } from '../configs/configs.service'
+import { InitService } from '../init/init.service'
+
 @Injectable()
 export class PageProxyService {
   constructor(
@@ -39,7 +43,7 @@ export class PageProxyService {
       from?: string
       BASE_API?: string
       GATEWAY?: string
-      [key: string]: string
+      [key: string]: string | undefined
     },
   ) {
     const config = await this.configs.waitForConfigReady()
diff --git a/src/modules/project/project.model.ts b/src/modules/project/project.model.ts
index e9130fe2..35ab9878 100644
--- a/src/modules/project/project.model.ts
+++ b/src/modules/project/project.model.ts
@@ -1,7 +1,9 @@
-import { PartialType } from '@nestjs/swagger'
-import { modelOptions, prop } from '@typegoose/typegoose'
 import { Transform } from 'class-transformer'
 import { IsOptional, IsString, IsUrl, isURL } from 'class-validator'
+
+import { PartialType } from '@nestjs/swagger'
+import { modelOptions, prop } from '@typegoose/typegoose'
+
 import { BaseModel } from '~/shared/model/base.model'
 
 const validateURL = {
@@ -16,6 +18,7 @@ const validateURL = {
     if (!isURL(v, { require_protocol: true })) {
       return false
     }
+    return true
   },
 }
 
diff --git a/src/modules/pty/pty.service.ts b/src/modules/pty/pty.service.ts
index c9e5d796..e4e60237 100644
--- a/src/modules/pty/pty.service.ts
+++ b/src/modules/pty/pty.service.ts
@@ -1,4 +1,5 @@
 import { Injectable } from '@nestjs/common'
+
 import { RedisKeys } from '~/constants/cache.constant'
 import { CacheService } from '~/processors/cache/cache.service'
 import { getRedisKey } from '~/utils'
@@ -18,7 +19,8 @@ export class PTYService {
     )
 
     return values
-      .map((value) => {
+      .filter(Boolean)
+      .map((value: string) => {
         const [startTime, ip, endTime] = value.split(',') as [
           string,
           string,
diff --git a/src/modules/search/search.service.ts b/src/modules/search/search.service.ts
index f07352e5..78a97198 100644
--- a/src/modules/search/search.service.ts
+++ b/src/modules/search/search.service.ts
@@ -1,3 +1,5 @@
+import algoliasearch from 'algoliasearch'
+
 import type { SearchResponse } from '@algolia/client-search'
 import {
   BadRequestException,
@@ -5,15 +7,16 @@ import {
   Injectable,
   forwardRef,
 } from '@nestjs/common'
-import algoliasearch from 'algoliasearch'
-import { ConfigsService } from '../configs/configs.service'
-import { NoteService } from '../note/note.service'
-import { PostService } from '../post/post.service'
+
 import { SearchDto } from '~/modules/search/search.dto'
 import { DatabaseService } from '~/processors/database/database.service'
 import { Pagination } from '~/shared/interface/paginator.interface'
 import { transformDataToPaginate } from '~/transformers/paginate.transformer'
 
+import { ConfigsService } from '../configs/configs.service'
+import { NoteService } from '../note/note.service'
+import { PostService } from '../post/post.service'
+
 @Injectable()
 export class SearchService {
   constructor(
@@ -84,6 +87,13 @@ export class SearchService {
     if (!algoliaSearchOptions.enable) {
       throw new BadRequestException('algolia not enable.')
     }
+    if (
+      !algoliaSearchOptions.appId ||
+      !algoliaSearchOptions.apiKey ||
+      !algoliaSearchOptions.indexName
+    ) {
+      throw new BadRequestException('algolia not config.')
+    }
     const client = algoliasearch(
       algoliaSearchOptions.appId,
       algoliaSearchOptions.apiKey,
@@ -128,7 +138,7 @@ export class SearchService {
     if (searchOption.rawAlgolia) {
       return search
     }
-    const data = []
+    const data: any[] = []
     const tasks = search.hits.map((hit) => {
       const { type, objectID } = hit
 
@@ -141,8 +151,10 @@ export class SearchService {
         .select('_id title created modified categoryId slug nid')
         .lean()
         .then((doc) => {
-          Reflect.set(doc, 'type', type)
-          doc && data.push(doc)
+          if (doc) {
+            Reflect.set(doc, 'type', type)
+            data.push(doc)
+          }
         })
     })
     await Promise.all(tasks)
diff --git a/src/modules/serverless/serverless.service.ts b/src/modules/serverless/serverless.service.ts
index 5c63202a..92e87046 100644
--- a/src/modules/serverless/serverless.service.ts
+++ b/src/modules/serverless/serverless.service.ts
@@ -1,6 +1,9 @@
+import { isURL } from 'class-validator'
 import fs, { mkdir, stat } from 'fs/promises'
+import { cloneDeep } from 'lodash'
 import path from 'path'
 import { nextTick } from 'process'
+
 import { TransformOptions, parseAsync, transformAsync } from '@babel/core'
 import * as t from '@babel/types'
 import { VariableDeclaration } from '@babel/types'
@@ -10,14 +13,7 @@ import {
   Logger,
 } from '@nestjs/common'
 import { Interval } from '@nestjs/schedule'
-import { isURL } from 'class-validator'
-import { cloneDeep } from 'lodash'
-import PKG from '../../../package.json'
-import { SnippetModel } from '../snippet/snippet.model'
-import {
-  FunctionContextRequest,
-  FunctionContextResponse,
-} from './function.types'
+
 import { RedisKeys } from '~/constants/cache.constant'
 import { DATA_DIR, NODE_REQUIRE_PATH } from '~/constants/path.constant'
 import { CacheService } from '~/processors/cache/cache.service'
@@ -29,6 +25,14 @@ import { UniqueArray } from '~/ts-hepler/unique'
 import { getRedisKey, safePathJoin } from '~/utils'
 import { safeEval } from '~/utils/safe-eval.util'
 import { isBuiltinModule } from '~/utils/sys.util'
+
+import PKG from '../../../package.json'
+import { SnippetModel } from '../snippet/snippet.model'
+import {
+  FunctionContextRequest,
+  FunctionContextResponse,
+} from './function.types'
+
 @Injectable()
 export class ServerlessService {
   constructor(
@@ -253,6 +257,9 @@ export class ServerlessService {
   }
   private convertTypescriptCode(code: string) {
     return transformAsync(code, this.getBabelOptions()).then((res) => {
+      if (!res) {
+        throw new InternalServerErrorException('convert code error')
+      }
       if (isDev) {
         console.log(res.code)
       }
diff --git a/src/modules/sitemap/sitemap.controller.ts b/src/modules/sitemap/sitemap.controller.ts
index 08415222..dd80f994 100644
--- a/src/modules/sitemap/sitemap.controller.ts
+++ b/src/modules/sitemap/sitemap.controller.ts
@@ -1,9 +1,13 @@
-import { CacheKey, CacheTTL, Controller, Get, Header } from '@nestjs/common'
 import { minify } from 'html-minifier'
-import { AggregateService } from '../aggregate/aggregate.service'
+
+import { CacheKey, CacheTTL, Controller, Get, Header } from '@nestjs/common'
+
 import { HTTPDecorators } from '~/common/decorator/http.decorator'
 import { ApiName } from '~/common/decorator/openapi.decorator'
 import { CacheKeys } from '~/constants/cache.constant'
+
+import { AggregateService } from '../aggregate/aggregate.service'
+
 @Controller('sitemap')
 @ApiName
 export class SitemapController {
@@ -24,7 +28,7 @@ export class SitemapController {
     .map(
       (item) => `<url>
   <loc>${item.url}</loc>
-  <lastmod>${item.published_at.toISOString()}</lastmod>
+  <lastmod>${item.published_at?.toISOString() || 'N/A'}</lastmod>
   </url>`,
     )
     .join('')}
diff --git a/src/modules/snippet/snippet.service.ts b/src/modules/snippet/snippet.service.ts
index b7875040..0ee399d3 100644
--- a/src/modules/snippet/snippet.service.ts
+++ b/src/modules/snippet/snippet.service.ts
@@ -1,3 +1,5 @@
+import { load } from 'js-yaml'
+
 import {
   BadRequestException,
   Inject,
@@ -5,14 +7,15 @@ import {
   NotFoundException,
   forwardRef,
 } from '@nestjs/common'
-import { load } from 'js-yaml'
-import { ServerlessService } from '../serverless/serverless.service'
-import { SnippetModel, SnippetType } from './snippet.model'
-import { InjectModel } from '~/transformers/model.transformer'
+
 import { RedisKeys } from '~/constants/cache.constant'
 import { CacheService } from '~/processors/cache/cache.service'
+import { InjectModel } from '~/transformers/model.transformer'
 import { getRedisKey } from '~/utils'
 
+import { ServerlessService } from '../serverless/serverless.service'
+import { SnippetModel, SnippetType } from './snippet.model'
+
 @Injectable()
 export class SnippetService {
   constructor(
@@ -58,6 +61,9 @@ export class SnippetService {
 
   async delete(id: string) {
     const doc = await this.model.findOneAndDelete({ _id: id }).lean()
+    if (!doc) {
+      throw new NotFoundException()
+    }
     await this.deleteCachedSnippet(doc.reference, doc.name)
   }
 
diff --git a/src/modules/user/user.model.ts b/src/modules/user/user.model.ts
index cc6c7ef8..85a9d721 100644
--- a/src/modules/user/user.model.ts
+++ b/src/modules/user/user.model.ts
@@ -1,11 +1,13 @@
+import { hashSync } from 'bcrypt'
+import { Schema } from 'mongoose'
+
 import {
   DocumentType,
   Severity,
   modelOptions,
   prop,
 } from '@typegoose/typegoose'
-import { hashSync } from 'bcrypt'
-import { Schema } from 'mongoose'
+
 import { BaseModel } from '~/shared/model/base.model'
 
 export type UserDocument = DocumentType<UserModel>
@@ -58,7 +60,7 @@ export class UserModel extends BaseModel {
   password!: string
 
   @prop()
-  mail?: string
+  mail: string
 
   @prop()
   url?: string
diff --git a/src/modules/user/user.service.ts b/src/modules/user/user.service.ts
index 8bb2887a..8aa3f2c0 100644
--- a/src/modules/user/user.service.ts
+++ b/src/modules/user/user.service.ts
@@ -1,21 +1,27 @@
+/* eslint-disable @typescript-eslint/no-non-null-assertion */
+import { compareSync } from 'bcrypt'
+import { nanoid } from 'nanoid'
+
 import {
   BadRequestException,
   ForbiddenException,
   Injectable,
+  InternalServerErrorException,
   Logger,
   UnprocessableEntityException,
 } from '@nestjs/common'
 import { ReturnModelType } from '@typegoose/typegoose'
-import { compareSync } from 'bcrypt'
-import { nanoid } from 'nanoid'
-import { AuthService } from '../auth/auth.service'
-import { UserDocument, UserModel } from './user.model'
-import { InjectModel } from '~/transformers/model.transformer'
+
+import { MasterLostException } from '~/common/exceptions/master-lost.exception'
 import { RedisKeys } from '~/constants/cache.constant'
 import { CacheService } from '~/processors/cache/cache.service'
+import { InjectModel } from '~/transformers/model.transformer'
 import { getAvatar, sleep } from '~/utils'
 import { getRedisKey } from '~/utils/redis.util'
 
+import { AuthService } from '../auth/auth.service'
+import { UserDocument, UserModel } from './user.model'
+
 @Injectable()
 export class UserService {
   private Logger = new Logger(UserService.name)
@@ -97,6 +103,11 @@ export class UserService {
       const currentUser = await this.userModel
         .findById(_id)
         .select('+password +apiToken')
+
+      if (!currentUser) {
+        throw new MasterLostException()
+      }
+
       // 1. 验证新旧密码是否一致
       const isSamePassword = compareSync(password, currentUser.password)
       if (isSamePassword) {
@@ -119,6 +130,9 @@ export class UserService {
    */
   async recordFootstep(ip: string): Promise<Record<string, Date | string>> {
     const master = await this.userModel.findOne()
+    if (!master) {
+      throw new MasterLostException()
+    }
     const PrevFootstep = {
       lastLoginTime: master.lastLoginTime || new Date(1586090559569),
       lastLoginIp: master.lastLoginIp || null,
@@ -138,7 +152,7 @@ export class UserService {
     })
 
     this.Logger.warn(`主人已登录, IP: ${ip}`)
-    return PrevFootstep
+    return PrevFootstep as any
   }
 
   // TODO 获取最近登陆次数 时间 从 Redis 取
diff --git a/src/processors/cache/cache.config.service.ts b/src/processors/cache/cache.config.service.ts
index 98500adf..c0db3e27 100755
--- a/src/processors/cache/cache.config.service.ts
+++ b/src/processors/cache/cache.config.service.ts
@@ -4,14 +4,15 @@
  * @module processor/cache/config.service
  * @author Surmon <https://github.com/surmon-china>
  */
+import redisStore from 'cache-manager-ioredis'
+import IORedis from 'ioredis'
 
 import {
   CacheModuleOptions,
   CacheOptionsFactory,
   Injectable,
 } from '@nestjs/common'
-import redisStore from 'cache-manager-ioredis'
-import IORedis from 'ioredis'
+
 import { REDIS } from '~/app.config'
 
 @Injectable()
@@ -27,7 +28,7 @@ export class CacheConfigService implements CacheOptionsFactory {
     }
     return {
       store: redisStore,
-      ttl: REDIS.ttl,
+      ttl: REDIS.ttl ?? undefined,
       // https://github.com/dabroek/node-cache-manager-redis-store/blob/master/CHANGELOG.md#breaking-changes
       // Any value (undefined | null) return true (cacheable) after redisStore v2.0.0
       is_cacheable_value: () => true,
diff --git a/src/processors/cache/cache.service.ts b/src/processors/cache/cache.service.ts
index 629cd4cf..5abd50a1 100755
--- a/src/processors/cache/cache.service.ts
+++ b/src/processors/cache/cache.service.ts
@@ -1,14 +1,17 @@
-import { CACHE_MANAGER, Inject, Injectable, Logger } from '@nestjs/common'
 import { Cache } from 'cache-manager'
 import { Redis } from 'ioredis'
-import type { RedisSubPub } from '../../utils/redis-subpub.util'
+
+import { CACHE_MANAGER, Inject, Injectable, Logger } from '@nestjs/common'
+
 import { getRedisKey } from '~/utils/redis.util'
 
+import type { RedisSubPub } from '../../utils/redis-subpub.util'
+
 // Cache 客户端管理器
 
 // 获取器
 export type TCacheKey = string
-export type TCacheResult<T> = Promise<T>
+export type TCacheResult<T> = Promise<T | undefined>
 
 /**
  * @class CacheService
diff --git a/src/processors/gateway/admin/auth.gateway.ts b/src/processors/gateway/admin/auth.gateway.ts
index 51fbe65a..2d2a842b 100644
--- a/src/processors/gateway/admin/auth.gateway.ts
+++ b/src/processors/gateway/admin/auth.gateway.ts
@@ -1,3 +1,5 @@
+import { Namespace, Socket } from 'socket.io'
+
 import { OnEvent } from '@nestjs/event-emitter'
 import { JwtService } from '@nestjs/jwt'
 import {
@@ -5,12 +7,13 @@ import {
   OnGatewayDisconnect,
   WebSocketServer,
 } from '@nestjs/websockets'
-import { Namespace, Socket } from 'socket.io'
-import { BaseGateway } from '../base.gateway'
-import { EventTypes } from '../events.types'
+
 import { EventBusEvents } from '~/constants/event.constant'
 import { AuthService } from '~/modules/auth/auth.service'
 
+import { BaseGateway } from '../base.gateway'
+import { EventTypes } from '../events.types'
+
 export abstract class AuthGateway
   extends BaseGateway
   implements OnGatewayConnection, OnGatewayDisconnect
@@ -56,7 +59,9 @@ export abstract class AuthGateway
   async handleConnection(client: Socket) {
     const token =
       client.handshake.query.token || client.handshake.headers['authorization']
-
+    if (!token) {
+      return this.authFailed(client)
+    }
     if (!(await this.authToken(token as string))) {
       return this.authFailed(client)
     }
@@ -76,7 +81,9 @@ export abstract class AuthGateway
   handleTokenExpired(token: string) {
     const server = this.namespace.server
     const sid = this.tokenSocketIdMap.get(token)
-
+    if (!sid) {
+      return false
+    }
     const socket = server.of('/admin').sockets.get(sid)
     if (socket) {
       socket.disconnect()
diff --git a/src/processors/gateway/web/events.gateway.ts b/src/processors/gateway/web/events.gateway.ts
index e5f90398..045c2677 100644
--- a/src/processors/gateway/web/events.gateway.ts
+++ b/src/processors/gateway/web/events.gateway.ts
@@ -1,3 +1,8 @@
+/* eslint-disable @typescript-eslint/no-non-null-assertion */
+import { plainToClass } from 'class-transformer'
+import { validate } from 'class-validator'
+import SocketIO from 'socket.io'
+
 import {
   ConnectedSocket,
   GatewayMetadata,
@@ -9,17 +14,16 @@ import {
   WebSocketServer,
 } from '@nestjs/websockets'
 import { Emitter } from '@socket.io/redis-emitter'
-import { plainToClass } from 'class-transformer'
-import { validate } from 'class-validator'
-import SocketIO from 'socket.io'
-import { BaseGateway } from '../base.gateway'
-import { EventTypes } from '../events.types'
-import { DanmakuDto } from './dtos/danmaku.dto'
+
 import { RedisKeys } from '~/constants/cache.constant'
 import { CacheService } from '~/processors/cache/cache.service'
 import { getRedisKey } from '~/utils/redis.util'
 import { getShortDate } from '~/utils/time.util'
 
+import { BaseGateway } from '../base.gateway'
+import { EventTypes } from '../events.types'
+import { DanmakuDto } from './dtos/danmaku.dto'
+
 @WebSocketGateway<GatewayMetadata>({
   namespace: 'web',
 })
@@ -72,14 +76,15 @@ export class WebEventsGateway
         +(await redisClient.hget(
           getRedisKey(RedisKeys.MaxOnlineCount),
           dateFormat,
-        )) || 0
+        ))! || 0
       await redisClient.hset(
         getRedisKey(RedisKeys.MaxOnlineCount),
         dateFormat,
         Math.max(maxOnlineCount, await this.getcurrentClientCount()),
       )
       const key = getRedisKey(RedisKeys.MaxOnlineCount, 'total')
-      const totalCount = +(await redisClient.hget(key, dateFormat)) || 0
+
+      const totalCount = +(await redisClient.hget(key, dateFormat))! || 0
       await redisClient.hset(key, dateFormat, totalCount + 1)
     })
 
diff --git a/src/processors/helper/helper.cron.service.ts b/src/processors/helper/helper.cron.service.ts
index dc7054b5..3e1295ed 100644
--- a/src/processors/helper/helper.cron.service.ts
+++ b/src/processors/helper/helper.cron.service.ts
@@ -1,16 +1,15 @@
 import cluster from 'cluster'
+import COS from 'cos-nodejs-sdk-v5'
+import dayjs from 'dayjs'
 import { existsSync } from 'fs'
 import { readdir, rm } from 'fs/promises'
+import mkdirp from 'mkdirp'
 import { join } from 'path'
+
 import { Inject, Injectable, Logger, forwardRef } from '@nestjs/common'
 import { OnEvent } from '@nestjs/event-emitter'
 import { Cron, CronExpression } from '@nestjs/schedule'
-import COS from 'cos-nodejs-sdk-v5'
-import dayjs from 'dayjs'
-import mkdirp from 'mkdirp'
-import { CacheService } from '../cache/cache.service'
-import { HttpService } from './helper.http.service'
-import { InjectModel } from '~/transformers/model.transformer'
+
 import { isMainCluster } from '~/app.config'
 import { CronDescription } from '~/common/decorator/cron-description.decorator'
 import { RedisKeys } from '~/constants/cache.constant'
@@ -24,8 +23,12 @@ import { NoteService } from '~/modules/note/note.service'
 import { PageService } from '~/modules/page/page.service'
 import { PostService } from '~/modules/post/post.service'
 import { SearchService } from '~/modules/search/search.service'
+import { InjectModel } from '~/transformers/model.transformer'
 import { getRedisKey } from '~/utils/redis.util'
 
+import { CacheService } from '../cache/cache.service'
+import { HttpService } from './helper.http.service'
+
 @Injectable()
 export class CronService {
   private logger: Logger
@@ -65,7 +68,7 @@ export class CronService {
           }
           const originMethod = this[name]
           this[name] = (...args) => {
-            if (cluster.worker.id === 1 || isMainCluster) {
+            if (cluster.worker?.id === 1 || isMainCluster) {
               originMethod.call(this, ...args)
             }
           }
diff --git a/src/processors/helper/helper.email.service.ts b/src/processors/helper/helper.email.service.ts
index 6f3dd604..1a3e5772 100644
--- a/src/processors/helper/helper.email.service.ts
+++ b/src/processors/helper/helper.email.service.ts
@@ -1,14 +1,20 @@
+/* eslint-disable @typescript-eslint/no-non-null-asserted-optional-chain */
+
+/* eslint-disable @typescript-eslint/no-non-null-assertion */
 import cluster from 'cluster'
-import { Injectable, Logger } from '@nestjs/common'
-import { OnEvent } from '@nestjs/event-emitter'
 import { render } from 'ejs'
 import { createTransport } from 'nodemailer'
-import { CacheService } from '../cache/cache.service'
-import { AssetService } from './helper.asset.service'
+
+import { Injectable, Logger } from '@nestjs/common'
+import { OnEvent } from '@nestjs/event-emitter'
+
 import { EventBusEvents } from '~/constants/event.constant'
 import { ConfigsService } from '~/modules/configs/configs.service'
 import { LinkModel } from '~/modules/link/link.model'
 
+import { CacheService } from '../cache/cache.service'
+import { AssetService } from './helper.asset.service'
+
 export enum ReplyMailType {
   Owner = 'owner',
   Guest = 'guest',
@@ -118,9 +124,10 @@ export class EmailService {
           this.logger.error(message)
           return j(message)
         }
+        // @ts-ignore
         r({
           host: options?.host,
-          port: +options?.port || 465,
+          port: +options?.port! || 465,
           auth: { user, pass },
         } as const)
       })
@@ -203,6 +210,7 @@ export class EmailService {
         },
       }
       if (isDev) {
+        // @ts-ignore
         delete options.html
         Object.assign(options, { source })
         this.logger.log(options)
@@ -219,6 +227,7 @@ export class EmailService {
         },
       }
       if (isDev) {
+        // @ts-ignore
         delete options.html
         Object.assign(options, { source })
         this.logger.log(options)
diff --git a/src/processors/helper/helper.image.service.ts b/src/processors/helper/helper.image.service.ts
index fdb04e97..51c620fa 100644
--- a/src/processors/helper/helper.image.service.ts
+++ b/src/processors/helper/helper.image.service.ts
@@ -1,11 +1,18 @@
-import { Injectable, Logger } from '@nestjs/common'
-import { ReturnModelType } from '@typegoose/typegoose'
 import imageSize from 'image-size'
-import { HttpService } from './helper.http.service'
+
+import {
+  Injectable,
+  InternalServerErrorException,
+  Logger,
+} from '@nestjs/common'
+import { ReturnModelType } from '@typegoose/typegoose'
+
 import { ConfigsService } from '~/modules/configs/configs.service'
 import { TextImageRecordType, WriteBaseModel } from '~/shared/model/base.model'
 import { getAverageRGB, pickImagesFromMarkdown } from '~/utils/pic.util'
 
+import { HttpService } from './helper.http.service'
+
 @Injectable()
 export class ImageService {
   private logger: Logger
@@ -22,6 +29,11 @@ export class ImageService {
   ) {
     const model = _model as any as ReturnModelType<typeof WriteBaseModel>
     const document = await model.findById(id).lean()
+    if (!document) {
+      throw new InternalServerErrorException(
+        `document not found, can not record image dimensions`,
+      )
+    }
     const { text } = document
     const newImages = pickImagesFromMarkdown(text)
 
@@ -81,7 +93,7 @@ export class ImageService {
     await model.updateOne(
       { _id: id },
       // 过滤多余的
-      { images: result.filter(({ src }) => newImages.includes(src)) },
+      { images: result.filter(({ src }) => newImages.includes(src!)) },
     )
   }
 
diff --git a/src/processors/logger/logger.service.ts b/src/processors/logger/logger.service.ts
index 337f21d2..dc4dbf4e 100644
--- a/src/processors/logger/logger.service.ts
+++ b/src/processors/logger/logger.service.ts
@@ -1,10 +1,11 @@
 /* eslint-disable prefer-rest-params */
 import cluster from 'cluster'
 import { performance } from 'perf_hooks'
+
 import { ConsoleLogger, ConsoleLoggerOptions } from '@nestjs/common'
 
 export class MyLogger extends ConsoleLogger {
-  constructor(context?: string, options?: ConsoleLoggerOptions) {
+  constructor(context: string, options: ConsoleLoggerOptions) {
     super(context, options)
   }
   private _getColorByLogLevel(logLevel: string) {
@@ -71,7 +72,7 @@ export class MyLogger extends ConsoleLogger {
     const diff = this._updateAndGetTimestampDiff()
 
     const workerPrefix = cluster.isWorker
-      ? chalk.hex('#fab1a0')(`*Worker - ${cluster.worker.id}*`)
+      ? chalk.hex('#fab1a0')(`*Worker - ${cluster!.worker!.id}*`)
       : ''
     if (context && !argv.length) {
       print(`${workerPrefix} [${chalk.yellow(context)}] `, formatMessage, diff)
diff --git a/src/shared/dto/pager.dto.ts b/src/shared/dto/pager.dto.ts
index 3456f8c3..c5abe780 100644
--- a/src/shared/dto/pager.dto.ts
+++ b/src/shared/dto/pager.dto.ts
@@ -1,4 +1,3 @@
-import { ApiProperty } from '@nestjs/swagger'
 import { Expose, Transform } from 'class-transformer'
 import {
   IsInt,
@@ -11,6 +10,8 @@ import {
   ValidateIf,
 } from 'class-validator'
 
+import { ApiProperty } from '@nestjs/swagger'
+
 class DbQueryDto {
   @IsOptional()
   db_query?: any
@@ -24,7 +25,7 @@ export class PagerDto extends DbQueryDto {
     toClassOnly: true,
   })
   @ApiProperty({ example: 10 })
-  size?: number
+  size: number
 
   @Transform(({ value: val }) => (val ? parseInt(val) : 1), {
     toClassOnly: true,
@@ -33,7 +34,7 @@ export class PagerDto extends DbQueryDto {
   @IsInt()
   @Expose()
   @ApiProperty({ example: 1 })
-  page?: number
+  page: number
 
   @IsOptional()
   @IsString()
diff --git a/src/shared/model/base.model.ts b/src/shared/model/base.model.ts
index 58906d5d..339838b1 100644
--- a/src/shared/model/base.model.ts
+++ b/src/shared/model/base.model.ts
@@ -1,5 +1,3 @@
-import { ApiHideProperty } from '@nestjs/swagger'
-import { index, modelOptions, plugin, prop } from '@typegoose/typegoose'
 import { Type } from 'class-transformer'
 import {
   IsBoolean,
@@ -15,6 +13,9 @@ import LeanId from 'mongoose-lean-id'
 import { default as mongooseLeanVirtuals } from 'mongoose-lean-virtuals'
 import Paginate from 'mongoose-paginate-v2'
 
+import { ApiHideProperty } from '@nestjs/swagger'
+import { index, modelOptions, plugin, prop } from '@typegoose/typegoose'
+
 @plugin(mongooseLeanVirtuals)
 @plugin(Paginate)
 @plugin(LeanId)
@@ -24,7 +25,7 @@ import Paginate from 'mongoose-paginate-v2'
     toObject: { virtuals: true },
     timestamps: {
       createdAt: 'created',
-      updatedAt: null,
+      updatedAt: false,
     },
     versionKey: false,
   },
@@ -70,7 +71,7 @@ abstract class ImageModel {
   @prop()
   @IsOptional()
   @IsUrl()
-  src: string
+  src?: string
 }
 
 export abstract class BaseCommentIndexModel extends BaseModel {
@@ -105,7 +106,7 @@ export class WriteBaseModel extends BaseCommentIndexModel {
   @Type(() => ImageModel)
   images?: ImageModel[]
 
-  @prop({ default: null })
+  @prop({ default: null, type: Date })
   @ApiHideProperty()
   modified: Date | null
 
diff --git a/src/utils/sys.util.ts b/src/utils/sys.util.ts
index beb9f82d..a3221500 100644
--- a/src/utils/sys.util.ts
+++ b/src/utils/sys.util.ts
@@ -1,12 +1,14 @@
 import { builtinModules } from 'module'
 
-export const isBuiltinModule = (module: string, ignoreList = []) => {
-  // @ts-ignore
-  return (builtinModules || Object.keys(process.binding('natives')))
-    .filter(
-      (x) =>
-        !/^_|^(internal|v8|node-inspect)\/|\//.test(x) &&
-        !ignoreList.includes(x),
-    )
-    .includes(module)
+export const isBuiltinModule = (module: string, ignoreList: string[] = []) => {
+  return (
+    // @ts-ignore
+    (builtinModules || (Object.keys(process.binding('natives')) as string[]))
+      .filter(
+        (x) =>
+          !/^_|^(internal|v8|node-inspect)\/|\//.test(x) &&
+          !ignoreList.includes(x),
+      )
+      .includes(module)
+  )
 }
diff --git a/src/utils/tool.util.ts b/src/utils/tool.util.ts
index b18c826a..ff1140da 100644
--- a/src/utils/tool.util.ts
+++ b/src/utils/tool.util.ts
@@ -1,10 +1,10 @@
-import { join } from 'path'
 import { isObject } from 'lodash'
+import { join } from 'path'
 
 export const md5 = (text: string) =>
   require('crypto').createHash('md5').update(text).digest('hex')
 
-export function getAvatar(mail: string) {
+export function getAvatar(mail: string | undefined) {
   if (!mail) {
     return ''
   }
diff --git a/test/tsconfig.json b/test/tsconfig.json
index 6aaa2013..d5e910dc 100644
--- a/test/tsconfig.json
+++ b/test/tsconfig.json
@@ -6,6 +6,7 @@
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
     "esModuleInterop": true,
+    "strictNullChecks": false,
     "allowSyntheticDefaultImports": true,
     "target": "ES2019",
     "sourceMap": true,
diff --git a/tsconfig.json b/tsconfig.json
index 8647b4dc..d17ba4dc 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,6 +3,7 @@
     "module": "CommonJS",
     "declaration": true,
     "removeComments": true,
+    "strictNullChecks": true,
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
     "esModuleInterop": true,