feat(ee): audit logs (#1977)

feat: clickhouse driver
* sync
* updates

apps/server/package.json

@@ -36,6 +36,7 @@
     "@aws-sdk/client-s3": "3.982.0",
     "@aws-sdk/lib-storage": "3.982.0",
     "@aws-sdk/s3-request-presigner": "3.982.0",
+    "@clickhouse/client": "^1.17.0",
     "@fastify/cookie": "^11.0.2",
     "@fastify/multipart": "^9.4.0",
     "@fastify/static": "^9.0.0",
@@ -83,6 +84,7 @@
     "mime-types": "^2.1.35",
     "msgpackr": "^1.11.8",
     "nanoid": "3.3.11",
+    "nestjs-cls": "^6.2.0",
     "nestjs-kysely": "^1.2.0",
     "nestjs-pino": "^4.5.0",
     "nodemailer": "^7.0.12",

apps/server/src/app.module.ts

@@ -1,7 +1,9 @@
 import { Module } from '@nestjs/common';
+import { APP_INTERCEPTOR } from '@nestjs/core';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { EnvironmentService } from './integrations/environment/environment.service';
+import { AuditActorInterceptor } from './common/interceptors/audit-actor.interceptor';
 import { CoreModule } from './core/core.module';
 import { EnvironmentModule } from './integrations/environment/environment.module';
 import { CollaborationModule } from './collaboration/collaboration.module';
@@ -22,6 +24,7 @@ import { RedisConfigService } from './integrations/redis/redis-config.service';
 import { CacheModule } from '@nestjs/cache-manager';
 import KeyvRedis from '@keyv/redis';
 import { LoggerModule } from './common/logger/logger.module';
+import { ClsModule } from 'nestjs-cls';
 
 const enterpriseModules = [];
 try {
@@ -39,6 +42,10 @@ try {
 
 @Module({
   imports: [
+    ClsModule.forRoot({
+      global: true,
+      middleware: { mount: true },
+    }),
     LoggerModule,
     CoreModule,
     DatabaseModule,
@@ -77,6 +84,12 @@ try {
     ...enterpriseModules,
   ],
   controllers: [AppController],
-  providers: [AppService],
+  providers: [
+    AppService,
+    {
+      provide: APP_INTERCEPTOR,
+      useClass: AuditActorInterceptor,
+    },
+  ],
 })
 export class AppModule {}

apps/server/src/common/events/audit-events.ts

@@ -0,0 +1,136 @@
+export const AuditEvent = {
+  // Workspace
+  WORKSPACE_CREATED: 'workspace.created',
+  WORKSPACE_UPDATED: 'workspace.updated',
+  WORKSPACE_INVITE_CREATED: 'workspace.invite_created',
+  WORKSPACE_INVITE_RESENT: 'workspace.invite_resent',
+  WORKSPACE_INVITE_REVOKED: 'workspace.invite_revoked',
+
+  // User
+  USER_CREATED: 'user.created',
+  USER_DELETED: 'user.deleted',
+  USER_LOGIN: 'user.login',
+  USER_LOGOUT: 'user.logout',
+  USER_ROLE_CHANGED: 'user.role_changed',
+  USER_PASSWORD_CHANGED: 'user.password_changed',
+  USER_PASSWORD_RESET: 'user.password_reset',
+  USER_UPDATED: 'user.updated',
+
+  // API Keys
+  API_KEY_CREATED: 'api_key.created',
+  API_KEY_UPDATED: 'api_key.updated',
+  API_KEY_DELETED: 'api_key.deleted',
+
+  // Space
+  SPACE_CREATED: 'space.created',
+  SPACE_UPDATED: 'space.updated',
+  SPACE_DELETED: 'space.deleted',
+  SPACE_MEMBER_ADDED: 'space.member_added',
+  SPACE_MEMBER_REMOVED: 'space.member_removed',
+  SPACE_MEMBER_ROLE_CHANGED: 'space.member_role_changed',
+
+  // Group
+  GROUP_CREATED: 'group.created',
+  GROUP_UPDATED: 'group.updated',
+  GROUP_DELETED: 'group.deleted',
+  GROUP_MEMBER_ADDED: 'group.member_added',
+  GROUP_MEMBER_REMOVED: 'group.member_removed',
+
+  // Comment
+  COMMENT_CREATED: 'comment.created',
+  COMMENT_DELETED: 'comment.deleted',
+
+  // Page
+  PAGE_CREATED: 'page.created',
+  PAGE_TRASHED: 'page.trashed',
+  PAGE_DELETED: 'page.deleted',
+  PAGE_RESTORED: 'page.restored',
+  PAGE_MOVED_TO_SPACE: 'page.moved_to_space',
+  PAGE_DUPLICATED: 'page.duplicated',
+
+  // Share
+  SHARE_CREATED: 'share.created',
+  SHARE_DELETED: 'share.deleted',
+
+  // Import / Export
+  PAGE_IMPORTED: 'page.imported',
+  PAGE_EXPORTED: 'page.exported',
+  SPACE_EXPORTED: 'space.exported',
+
+  // SSO provider management
+  SSO_PROVIDER_CREATED: 'sso.provider_created',
+  SSO_PROVIDER_UPDATED: 'sso.provider_updated',
+  SSO_PROVIDER_DELETED: 'sso.provider_deleted',
+
+  // MFA
+  USER_MFA_ENABLED: 'user.mfa_enabled',
+  USER_MFA_DISABLED: 'user.mfa_disabled',
+  USER_MFA_BACKUP_CODE_GENERATED: 'user.mfa_backup_code_generated',
+
+  // License
+  LICENSE_ACTIVATED: 'license.activated',
+  LICENSE_REMOVED: 'license.removed',
+
+  // Page permission
+  PAGE_RESTRICTED: 'page.restricted',
+  PAGE_RESTRICTION_REMOVED: 'page.restriction_removed',
+  PAGE_PERMISSION_ADDED: 'page.permission_added',
+  PAGE_PERMISSION_REMOVED: 'page.permission_removed',
+
+  // Comment updates / resolve
+  COMMENT_UPDATED: 'comment.updated',
+  COMMENT_RESOLVED: 'comment.resolved',
+  COMMENT_REOPENED: 'comment.reopened',
+
+  // Attachment
+  ATTACHMENT_UPLOADED: 'attachment.uploaded',
+  // ATTACHMENT_DELETED: 'attachment.deleted',
+} as const;
+
+export type AuditEventType = (typeof AuditEvent)[keyof typeof AuditEvent];
+
+export const EXCLUDED_AUDIT_EVENTS: Set<string> = new Set([
+  // AuditEvent.PAGE_MOVED_TO_SPACE,
+  //AuditEvent.PAGE_DUPLICATED,
+]);
+
+export const AuditResource = {
+  WORKSPACE: 'workspace',
+  USER: 'user',
+  PAGE: 'page',
+  SPACE: 'space',
+  SPACE_MEMBER: 'space_member',
+  GROUP: 'group',
+  COMMENT: 'comment',
+  SHARE: 'share',
+  API_KEY: 'api_key',
+  SSO_PROVIDER: 'sso_provider',
+  WORKSPACE_INVITATION: 'workspace_invitation',
+  ATTACHMENT: 'attachment',
+  LICENSE: 'license',
+} as const;
+
+export type AuditResourceType =
+  (typeof AuditResource)[keyof typeof AuditResource];
+
+export type ActorType = 'user' | 'system' | 'api_key';
+
+export interface AuditLogPayload {
+  event: AuditEventType;
+  resourceType: AuditResourceType;
+  resourceId?: string;
+  spaceId?: string;
+  changes?: {
+    before?: Record<string, any>;
+    after?: Record<string, any>;
+  };
+  metadata?: Record<string, any>;
+}
+
+export interface AuditLogData extends AuditLogPayload {
+  workspaceId: string;
+  actorId?: string;
+  actorType: ActorType;
+  ipAddress?: string;
+  userAgent?: string;
+}

apps/server/src/common/helpers/cache-keys.ts

@@ -0,0 +1,3 @@
+export const CacheKey = {
+  LICENSE_VALID: (workspaceId: string) => `license:valid:${workspaceId}`,
+};

apps/server/src/common/helpers/utils.ts

@@ -120,6 +120,30 @@ export function normalizePostgresUrl(url: string): string {
   return parsed.toString();
 }
 
+export function diffAuditTrackedFields(
+  fields: readonly string[],
+  dto: Record<string, any>,
+  before: Record<string, any> | undefined | null,
+  after: Record<string, any> | undefined | null,
+): { before: Record<string, any>; after: Record<string, any> } | null {
+  const beforeDiff: Record<string, any> = {};
+  const afterDiff: Record<string, any> = {};
+  let hasChanges = false;
+
+  for (const field of fields) {
+    if (typeof dto[field] === 'undefined') continue;
+    const oldVal = JSON.stringify(before?.[field] ?? null);
+    const newVal = JSON.stringify(after?.[field] ?? null);
+    if (oldVal !== newVal) {
+      beforeDiff[field] = before?.[field];
+      afterDiff[field] = after?.[field];
+      hasChanges = true;
+    }
+  }
+
+  return hasChanges ? { before: beforeDiff, after: afterDiff } : null;
+}
+
 export function createByteCountingStream(source: Readable) {
   let bytesRead = 0;
   const stream = new Transform({

apps/server/src/common/interceptors/audit-actor.interceptor.ts

@@ -0,0 +1,29 @@
+import {
+  CallHandler,
+  ExecutionContext,
+  Injectable,
+  NestInterceptor,
+} from '@nestjs/common';
+import { Observable } from 'rxjs';
+import { ClsService } from 'nestjs-cls';
+import { AuditContext, AUDIT_CONTEXT_KEY } from '../middlewares/audit-context.middleware';
+
+@Injectable()
+export class AuditActorInterceptor implements NestInterceptor {
+  constructor(private readonly cls: ClsService) {}
+
+  intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
+    const request = context.switchToHttp().getRequest();
+    const user = request.user?.user;
+
+    if (user?.id) {
+      const auditContext = this.cls.get<AuditContext>(AUDIT_CONTEXT_KEY);
+      if (auditContext) {
+        auditContext.actorId = user.id;
+        this.cls.set(AUDIT_CONTEXT_KEY, auditContext);
+      }
+    }
+
+    return next.handle();
+  }
+}

apps/server/src/common/middlewares/audit-context.middleware.ts

@@ -0,0 +1,50 @@
+import { Injectable, NestMiddleware } from '@nestjs/common';
+import { FastifyRequest, FastifyReply } from 'fastify';
+import { ClsService } from 'nestjs-cls';
+
+export interface AuditContext {
+  workspaceId: string | null;
+  actorId: string | null;
+  actorType: 'user' | 'system' | 'api_key';
+  ipAddress: string | null;
+}
+
+export const AUDIT_CONTEXT_KEY = 'auditContext';
+
+@Injectable()
+export class AuditContextMiddleware implements NestMiddleware {
+  constructor(private readonly cls: ClsService) {}
+
+  use(req: FastifyRequest['raw'], res: FastifyReply['raw'], next: () => void) {
+    const workspaceId = (req as any).workspaceId ?? null;
+    const ipAddress = this.extractIpAddress(req);
+
+    const auditContext: AuditContext = {
+      workspaceId,
+      actorId: null,
+      actorType: 'user',
+      ipAddress,
+    };
+
+    this.cls.set(AUDIT_CONTEXT_KEY, auditContext);
+
+    next();
+  }
+
+  private extractIpAddress(req: FastifyRequest['raw']): string | null {
+    const xForwardedFor = req.headers['x-forwarded-for'];
+    if (xForwardedFor) {
+      const ips = Array.isArray(xForwardedFor)
+        ? xForwardedFor[0]
+        : xForwardedFor.split(',')[0];
+      return ips?.trim() ?? null;
+    }
+
+    const xRealIp = req.headers['x-real-ip'];
+    if (xRealIp) {
+      return Array.isArray(xRealIp) ? xRealIp[0] : xRealIp;
+    }
+
+    return (req as any).socket?.remoteAddress ?? null;
+  }
+}

apps/server/src/core/attachment/attachment.controller.ts

@@ -6,6 +6,7 @@ import {
   Get,
   HttpCode,
   HttpStatus,
+  Inject,
   Logger,
   NotFoundException,
   Param,
@@ -54,6 +55,11 @@ import { JwtAttachmentPayload, JwtType } from '../auth/dto/jwt-payload';
 import * as path from 'path';
 import { AttachmentInfoDto, RemoveIconDto } from './dto/attachment.dto';
 import { PageAccessService } from '../page/page-access/page-access.service';
+import { AuditEvent, AuditResource } from '../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../integrations/audit/audit.service';
 
 @Controller()
 export class AttachmentController {
@@ -69,6 +75,7 @@ export class AttachmentController {
     private readonly environmentService: EnvironmentService,
     private readonly tokenService: TokenService,
     private readonly pageAccessService: PageAccessService,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   @UseGuards(JwtAuthGuard)
@@ -132,6 +139,18 @@ export class AttachmentController {
         attachmentId: attachmentId,
       });
 
+      this.auditService.log({
+        event: AuditEvent.ATTACHMENT_UPLOADED,
+        resourceType: AuditResource.ATTACHMENT,
+        resourceId: fileResponse?.id ?? attachmentId,
+        spaceId,
+        metadata: {
+          fileName: fileResponse?.fileName,
+          pageId,
+          spaceId,
+        },
+      });
+
       return res.send(fileResponse);
     } catch (err: any) {
       if (err?.statusCode === 413) {

apps/server/src/core/auth/auth.controller.ts

@@ -3,6 +3,7 @@ import {
   Controller,
   HttpCode,
   HttpStatus,
+  Inject,
   Post,
   Res,
   UseGuards,
@@ -24,6 +25,11 @@ import { VerifyUserTokenDto } from './dto/verify-user-token.dto';
 import { FastifyReply } from 'fastify';
 import { validateSsoEnforcement } from './auth.util';
 import { ModuleRef } from '@nestjs/core';
+import { AuditEvent, AuditResource } from '../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../integrations/audit/audit.service';
 
 @Controller('auth')
 export class AuthController {
@@ -33,6 +39,7 @@ export class AuthController {
     private authService: AuthService,
     private environmentService: EnvironmentService,
     private moduleRef: ModuleRef,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   @HttpCode(HttpStatus.OK)
@@ -169,8 +176,17 @@ export class AuthController {
   @UseGuards(JwtAuthGuard)
   @HttpCode(HttpStatus.OK)
   @Post('logout')
-  async logout(@Res({ passthrough: true }) res: FastifyReply) {
+  async logout(
+    @AuthUser() user: User,
+    @Res({ passthrough: true }) res: FastifyReply,
+  ) {
     res.clearCookie('authToken');
+
+    this.auditService.log({
+      event: AuditEvent.USER_LOGOUT,
+      resourceType: AuditResource.USER,
+      resourceId: user.id,
+    });
   }
 
   setAuthCookie(res: FastifyReply, token: string) {

apps/server/src/core/auth/services/auth.service.ts

@@ -1,5 +1,6 @@
 import {
   BadRequestException,
+  Inject,
   Injectable,
   NotFoundException,
   UnauthorizedException,
@@ -29,6 +30,11 @@ import { InjectKysely } from 'nestjs-kysely';
 import { executeTx } from '@docmost/db/utils';
 import { VerifyUserTokenDto } from '../dto/verify-user-token.dto';
 import { DomainService } from '../../../integrations/environment/domain.service';
+import { AuditEvent, AuditResource } from '../../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../../integrations/audit/audit.service';
 
 @Injectable()
 export class AuthService {
@@ -40,6 +46,7 @@ export class AuthService {
     private mailService: MailService,
     private domainService: DomainService,
     @InjectKysely() private readonly db: KyselyDB,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   async login(loginDto: LoginDto, workspaceId: string) {
@@ -64,6 +71,13 @@ export class AuthService {
     user.lastLoginAt = new Date();
     await this.userRepo.updateLastLogin(user.id, workspaceId);
 
+    this.auditService.log({
+      event: AuditEvent.USER_LOGIN,
+      resourceType: AuditResource.USER,
+      resourceId: user.id,
+      metadata: { source: 'password' },
+    });
+
     return this.tokenService.generateAccessToken(user);
   }
 
@@ -112,6 +126,12 @@ export class AuthService {
       workspaceId,
     );
 
+    this.auditService.log({
+      event: AuditEvent.USER_PASSWORD_CHANGED,
+      resourceType: AuditResource.USER,
+      resourceId: userId,
+    });
+
     const emailTemplate = ChangePasswordEmail({ username: user.name });
     await this.mailService.sendToQueue({
       to: user.email,
@@ -135,16 +155,27 @@ export class AuthService {
 
     const token = nanoIdGen(16);
 
-    const resetLink = `${this.domainService.getUrl(workspace.hostname)}/password-reset?token=${token}`;
+    await executeTx(this.db, async (trx) => {
+      await trx
+        .deleteFrom('userTokens')
+        .where('userId', '=', user.id)
+        .where('type', '=', UserTokenType.FORGOT_PASSWORD)
+        .execute();
 
-    await this.userTokenRepo.insertUserToken({
-      token: token,
-      userId: user.id,
-      workspaceId: user.workspaceId,
-      expiresAt: new Date(new Date().getTime() + 60 * 60 * 1000), // 1 hour
-      type: UserTokenType.FORGOT_PASSWORD,
+      await this.userTokenRepo.insertUserToken(
+        {
+          token,
+          userId: user.id,
+          workspaceId: user.workspaceId,
+          expiresAt: new Date(Date.now() + 30 * 60 * 1000), // 30 minutes
+          type: UserTokenType.FORGOT_PASSWORD,
+        },
+        { trx },
+      );
     });
 
+    const resetLink = `${this.domainService.getUrl(workspace.hostname)}/password-reset?token=${token}`;
+
     const emailTemplate = ForgotPasswordEmail({
       username: user.name,
       resetLink: resetLink,
@@ -201,6 +232,13 @@ export class AuthService {
         .execute();
     });
 
+    this.auditService.setActorId(user.id);
+    this.auditService.log({
+      event: AuditEvent.USER_PASSWORD_RESET,
+      resourceType: AuditResource.USER,
+      resourceId: user.id,
+    });
+
     const emailTemplate = ChangePasswordEmail({ username: user.name });
     await this.mailService.sendToQueue({
       to: user.email,

apps/server/src/core/auth/services/signup.service.ts

@@ -1,4 +1,4 @@
-import { BadRequestException, Injectable } from '@nestjs/common';
+import { BadRequestException, Inject, Injectable } from '@nestjs/common';
 import { CreateUserDto } from '../dto/create-user.dto';
 import { WorkspaceService } from '../../workspace/services/workspace.service';
 import { CreateWorkspaceDto } from '../../workspace/dto/create-workspace.dto';
@@ -10,6 +10,11 @@ import { InjectKysely } from 'nestjs-kysely';
 import { User, Workspace } from '@docmost/db/types/entity.types';
 import { GroupUserRepo } from '@docmost/db/repos/group/group-user.repo';
 import { UserRole } from '../../../common/helpers/types/permission';
+import { AuditEvent, AuditResource } from '../../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../../integrations/audit/audit.service';
 
 @Injectable()
 export class SignupService {
@@ -18,6 +23,7 @@ export class SignupService {
     private workspaceService: WorkspaceService,
     private groupUserRepo: GroupUserRepo,
     @InjectKysely() private readonly db: KyselyDB,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   async signup(
@@ -36,7 +42,7 @@ export class SignupService {
       );
     }
 
-    return await executeTx(
+    const user = await executeTx(
       this.db,
       async (trx) => {
         // create user
@@ -66,6 +72,24 @@ export class SignupService {
       },
       trx,
     );
+
+    this.auditService.log({
+      event: AuditEvent.USER_CREATED,
+      resourceType: AuditResource.USER,
+      resourceId: user.id,
+      changes: {
+        after: {
+          name: user.name,
+          email: user.email,
+          role: user.role,
+        },
+      },
+      metadata: {
+        source: 'signup',
+      },
+    });
+
+    return user;
   }
 
   async initialSetup(

apps/server/src/core/comment/comment.controller.ts

@@ -5,6 +5,7 @@ import {
   HttpCode,
   HttpStatus,
   UseGuards,
+  Inject,
   NotFoundException,
   ForbiddenException,
 } from '@nestjs/common';
@@ -25,6 +26,11 @@ import {
 } from '../casl/interfaces/space-ability.type';
 import { CommentRepo } from '@docmost/db/repos/comment/comment.repo';
 import { PageAccessService } from '../page/page-access/page-access.service';
+import { AuditEvent, AuditResource } from '../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../integrations/audit/audit.service';
 
 @UseGuards(JwtAuthGuard)
 @Controller('comments')
@@ -35,6 +41,7 @@ export class CommentController {
     private readonly pageRepo: PageRepo,
     private readonly spaceAbility: SpaceAbilityFactory,
     private readonly pageAccessService: PageAccessService,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   @HttpCode(HttpStatus.OK)
@@ -51,7 +58,7 @@ export class CommentController {
 
     await this.pageAccessService.validateCanEdit(page, user);
 
-    return this.commentService.create(
+    const comment = await this.commentService.create(
       {
         userId: user.id,
         page,
@@ -59,6 +66,18 @@ export class CommentController {
       },
       createCommentDto,
     );
+
+    this.auditService.log({
+      event: AuditEvent.COMMENT_CREATED,
+      resourceType: AuditResource.COMMENT,
+      resourceId: comment.id,
+      spaceId: page.spaceId,
+      metadata: {
+        pageId: page.id,
+      },
+    });
+
+    return comment;
   }
 
   @HttpCode(HttpStatus.OK)
@@ -136,20 +155,32 @@ export class CommentController {
 
     if (isOwner) {
       await this.commentRepo.deleteComment(comment.id);
-      return;
-    }
-
-    const ability = await this.spaceAbility.createForUser(
-      user,
-      comment.spaceId,
-    );
-
-    // Space admin can delete any comment
-    if (ability.cannot(SpaceCaslAction.Manage, SpaceCaslSubject.Settings)) {
-      throw new ForbiddenException(
-        'You can only delete your own comments or must be a space admin',
+    } else {
+      const ability = await this.spaceAbility.createForUser(
+        user,
+        comment.spaceId,
       );
+
+      // Space admin can delete any comment
+      if (ability.cannot(SpaceCaslAction.Manage, SpaceCaslSubject.Settings)) {
+        throw new ForbiddenException(
+          'You can only delete your own comments or must be a space admin',
+        );
+      }
+      await this.commentRepo.deleteComment(comment.id);
     }
-    await this.commentRepo.deleteComment(comment.id);
+
+    this.auditService.log({
+      event: AuditEvent.COMMENT_DELETED,
+      resourceType: AuditResource.COMMENT,
+      resourceId: comment.id,
+      spaceId: comment.spaceId,
+      changes: {
+        before: {
+          pageId: comment.pageId,
+          creatorId: comment.creatorId,
+        },
+      },
+    });
   }
 }

apps/server/src/core/core.module.ts

@@ -16,9 +16,15 @@ import { GroupModule } from './group/group.module';
 import { CaslModule } from './casl/casl.module';
 import { PageAccessModule } from './page/page-access/page-access.module';
 import { DomainMiddleware } from '../common/middlewares/domain.middleware';
+import { AuditContextMiddleware } from '../common/middlewares/audit-context.middleware';
 import { ShareModule } from './share/share.module';
 import { NotificationModule } from './notification/notification.module';
 import { WatcherModule } from './watcher/watcher.module';
+import {
+  AUDIT_SERVICE,
+  NoopAuditService,
+} from '../integrations/audit/audit.service';
+import { ClsMiddleware } from 'nestjs-cls';
 
 @Module({
   imports: [
@@ -37,17 +43,31 @@ import { WatcherModule } from './watcher/watcher.module';
     NotificationModule,
     WatcherModule,
   ],
+  providers: [
+    {
+      provide: AUDIT_SERVICE,
+      useClass: NoopAuditService,
+    },
+  ],
+  exports: [AUDIT_SERVICE],
 })
 export class CoreModule implements NestModule {
   configure(consumer: MiddlewareConsumer) {
+    const excludedRoutes = [
+      { path: 'auth/setup', method: RequestMethod.POST },
+      { path: 'health', method: RequestMethod.GET },
+      { path: 'health/live', method: RequestMethod.GET },
+      { path: 'billing/stripe/webhook', method: RequestMethod.POST },
+    ];
+
     consumer
       .apply(DomainMiddleware)
-      .exclude(
-        { path: 'auth/setup', method: RequestMethod.POST },
-        { path: 'health', method: RequestMethod.GET },
-        { path: 'health/live', method: RequestMethod.GET },
-        { path: 'billing/stripe/webhook', method: RequestMethod.POST },
-      )
+      .exclude(...excludedRoutes)
+      .forRoutes('*');
+
+    consumer
+      .apply(AuditContextMiddleware)
+      .exclude(...excludedRoutes)
       .forRoutes('*');
   }
 }

apps/server/src/core/group/services/group-user.service.ts

@@ -14,6 +14,11 @@ import { SpaceMemberRepo } from '@docmost/db/repos/space/space-member.repo';
 import { UserRepo } from '@docmost/db/repos/user/user.repo';
 import { executeTx } from '@docmost/db/utils';
 import { WatcherRepo } from '@docmost/db/repos/watcher/watcher.repo';
+import { AuditEvent, AuditResource } from '../../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../../integrations/audit/audit.service';
 
 @Injectable()
 export class GroupUserService {
@@ -25,6 +30,7 @@ export class GroupUserService {
     private groupService: GroupService,
     private readonly watcherRepo: WatcherRepo,
     @InjectKysely() private readonly db: KyselyDB,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   async getGroupUsers(
@@ -72,6 +78,20 @@ export class GroupUserService {
       .values(groupUsersToInsert)
       .onConflict((oc) => oc.columns(['userId', 'groupId']).doNothing())
       .execute();
+
+    for (const user of validUsers) {
+      this.auditService.log({
+        event: AuditEvent.GROUP_MEMBER_ADDED,
+        resourceType: AuditResource.GROUP,
+        resourceId: groupId,
+        changes: {
+          after: {
+            userId: user.id,
+            userName: user.name,
+          },
+        },
+      });
+    }
   }
 
   async removeUserFromGroup(
@@ -115,8 +135,24 @@ export class GroupUserService {
         await this.watcherRepo.deleteByUsersWithoutSpaceAccess(
           [userId],
           spaceId,
+          { trx },
         );
       }
     });
+
+    this.auditService.log({
+      event: AuditEvent.GROUP_MEMBER_REMOVED,
+      resourceType: AuditResource.GROUP,
+      resourceId: groupId,
+      changes: {
+        before: {
+          userId: user.id,
+          userName: user.name,
+        },
+      },
+      metadata: {
+        groupName: group.name,
+      },
+    });
   }
 }

apps/server/src/core/group/services/group.service.ts

@@ -18,6 +18,12 @@ import { GroupUserService } from './group-user.service';
 import { WatcherRepo } from '@docmost/db/repos/watcher/watcher.repo';
 import { executeTx } from '@docmost/db/utils';
 import { InjectKysely } from 'nestjs-kysely';
+import { AuditEvent, AuditResource } from '../../../common/events/audit-events';
+import { diffAuditTrackedFields } from '../../../common/helpers';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../../integrations/audit/audit.service';
 
 @Injectable()
 export class GroupService {
@@ -29,6 +35,7 @@ export class GroupService {
     private groupUserService: GroupUserService,
     private readonly watcherRepo: WatcherRepo,
     @InjectKysely() private readonly db: KyselyDB,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   async getGroupInfo(groupId: string, workspaceId: string): Promise<Group> {
@@ -74,6 +81,18 @@ export class GroupService {
       );
     }
 
+    this.auditService.log({
+      event: AuditEvent.GROUP_CREATED,
+      resourceType: AuditResource.GROUP,
+      resourceId: createdGroup.id,
+      changes: {
+        after: {
+          name: createdGroup.name,
+          description: createdGroup.description,
+        },
+      },
+    });
+
     return createdGroup;
   }
 
@@ -95,6 +114,8 @@ export class GroupService {
       throw new BadRequestException('You cannot update a default group');
     }
 
+    const groupBefore = { name: group.name, description: group.description };
+
     if (updateGroupDto.name) {
       const existingGroup = await this.groupRepo.findByName(
         updateGroupDto.name,
@@ -121,6 +142,22 @@ export class GroupService {
       workspaceId,
     );
 
+    const changes = diffAuditTrackedFields(
+      ['name', 'description'],
+      updateGroupDto,
+      groupBefore,
+      group,
+    );
+
+    if (changes) {
+      this.auditService.log({
+        event: AuditEvent.GROUP_UPDATED,
+        resourceType: AuditResource.GROUP,
+        resourceId: group.id,
+        changes,
+      });
+    }
+
     return group;
   }
 
@@ -154,6 +191,18 @@ export class GroupService {
         );
       }
     });
+
+    this.auditService.log({
+      event: AuditEvent.GROUP_DELETED,
+      resourceType: AuditResource.GROUP,
+      resourceId: groupId,
+      changes: {
+        before: {
+          name: group.name,
+          description: group.description,
+        },
+      },
+    });
   }
 
   async findAndValidateGroup(

apps/server/src/core/page/page.controller.ts

@@ -5,6 +5,7 @@ import {
   ForbiddenException,
   HttpCode,
   HttpStatus,
+  Inject,
   NotFoundException,
   Post,
   UseGuards,
@@ -25,7 +26,7 @@ import { AuthUser } from '../../common/decorators/auth-user.decorator';
 import { AuthWorkspace } from '../../common/decorators/auth-workspace.decorator';
 import { JwtAuthGuard } from '../../common/guards/jwt-auth.guard';
 import { PaginationOptions } from '@docmost/db/pagination/pagination-options';
-import { User, Workspace } from '@docmost/db/types/entity.types';
+import { Page, User, Workspace } from '@docmost/db/types/entity.types';
 import { SidebarPageDto } from './dto/sidebar-page.dto';
 import {
   SpaceCaslAction,
@@ -40,6 +41,12 @@ import {
   jsonToHtml,
   jsonToMarkdown,
 } from '../../collaboration/collaboration.util';
+import { AuditEvent, AuditResource } from '../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../integrations/audit/audit.service';
+import { getPageTitle } from '../../common/helpers';
 
 @UseGuards(JwtAuthGuard)
 @Controller('pages')
@@ -50,6 +57,7 @@ export class PageController {
     private readonly pageHistoryService: PageHistoryService,
     private readonly spaceAbility: SpaceAbilityFactory,
     private readonly pageAccessService: PageAccessService,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   @HttpCode(HttpStatus.OK)
@@ -129,6 +137,19 @@ export class PageController {
 
     const permissions = { canEdit, hasRestriction };
 
+    this.auditService.log({
+      event: AuditEvent.PAGE_CREATED,
+      resourceType: AuditResource.PAGE,
+      resourceId: page.id,
+      spaceId: page.spaceId,
+      changes: {
+        after: {
+          title: getPageTitle(page.title),
+          spaceId: page.spaceId,
+        },
+      },
+    });
+
     if (
       createPageDto.format &&
       createPageDto.format !== 'json' &&
@@ -153,8 +174,10 @@ export class PageController {
       throw new NotFoundException('Page not found');
     }
 
-    const { hasRestriction } =
-      await this.pageAccessService.validateCanEdit(page, user);
+    const { hasRestriction } = await this.pageAccessService.validateCanEdit(
+      page,
+      user,
+    );
 
     const updatedPage = await this.pageService.update(
       page,
@@ -202,6 +225,21 @@ export class PageController {
         );
       }
       await this.pageService.forceDelete(deletePageDto.pageId, workspace.id);
+
+      this.auditService.log({
+        event: AuditEvent.PAGE_DELETED,
+        resourceType: AuditResource.PAGE,
+        resourceId: page.id,
+        spaceId: page.spaceId,
+        changes: {
+          before: {
+            pageId: page.id,
+            slugId: page.slugId,
+            title: getPageTitle(page.title),
+            spaceId: page.spaceId,
+          },
+        },
+      });
     } else {
       // User with edit permission can delete
       await this.pageAccessService.validateCanEdit(page, user);
@@ -211,6 +249,21 @@ export class PageController {
         user.id,
         workspace.id,
       );
+
+      this.auditService.log({
+        event: AuditEvent.PAGE_TRASHED,
+        resourceType: AuditResource.PAGE,
+        resourceId: page.id,
+        spaceId: page.spaceId,
+        changes: {
+          before: {
+            pageId: page.id,
+            slugId: page.slugId,
+            title: getPageTitle(page.title),
+            spaceId: page.spaceId,
+          },
+        },
+      });
     }
   }
 
@@ -227,20 +280,30 @@ export class PageController {
       throw new NotFoundException('Page not found');
     }
 
-    //Todo: currently, this means if they are not admins, they need to add a space admin to the page, which is not possible as it was soft-deleted
-    // so page is virtually lost. Fix.
+    // only users with "can edit" space level permission can restore pages
     const ability = await this.spaceAbility.createForUser(user, page.spaceId);
-    if (ability.cannot(SpaceCaslAction.Manage, SpaceCaslSubject.Page)) {
+    if (ability.cannot(SpaceCaslAction.Edit, SpaceCaslSubject.Page)) {
       throw new ForbiddenException();
     }
 
-    //TODO: can users with page level edit, but no space level edit restore pages they can edit?
-
-    // Check page-level edit permission (if restoring to a restricted ancestor)
+    // make sure they have page level access to the page
     await this.pageAccessService.validateCanEdit(page, user);
 
     await this.pageRepo.restorePage(pageIdDto.pageId, workspace.id);
 
+    this.auditService.log({
+      event: AuditEvent.PAGE_RESTORED,
+      resourceType: AuditResource.PAGE,
+      resourceId: page.id,
+      spaceId: page.spaceId,
+      changes: {
+        after: {
+          title: getPageTitle(page.title),
+          spaceId: page.spaceId,
+        },
+      },
+    });
+
     return this.pageRepo.findById(pageIdDto.pageId, {
       includeHasChildren: true,
     });
@@ -286,7 +349,7 @@ export class PageController {
         deletedPageDto.spaceId,
       );
 
-      if (ability.cannot(SpaceCaslAction.Manage, SpaceCaslSubject.Page)) {
+      if (ability.cannot(SpaceCaslAction.Edit, SpaceCaslSubject.Page)) {
         throw new ForbiddenException();
       }
 
@@ -410,7 +473,26 @@ export class PageController {
     await this.pageAccessService.validateCanEdit(movedPage, user);
 
     // Moves only accessible pages; inaccessible child pages become root pages in original space
-    return this.pageService.movePageToSpace(movedPage, dto.spaceId, user.id);
+    const { childPageIds } = await this.pageService.movePageToSpace(
+      movedPage,
+      dto.spaceId,
+      user.id,
+    );
+
+    this.auditService.log({
+      event: AuditEvent.PAGE_MOVED_TO_SPACE,
+      resourceType: AuditResource.PAGE,
+      resourceId: movedPage.id,
+      spaceId: movedPage.spaceId,
+      changes: {
+        before: { spaceId: movedPage.spaceId },
+        after: { spaceId: dto.spaceId },
+      },
+      metadata: {
+        title: getPageTitle(movedPage.title),
+        ...(childPageIds.length > 0 && { childPageIds }),
+      },
+    });
   }
 
   @HttpCode(HttpStatus.OK)
@@ -425,6 +507,8 @@ export class PageController {
     // Inaccessible child branches are automatically skipped during duplication
     await this.pageAccessService.validateCanView(copiedPage, user);
 
+    let result;
+
     // If spaceId is provided, it's a copy to different space
     if (dto.spaceId) {
       const abilities = await Promise.all([
@@ -440,7 +524,27 @@ export class PageController {
         throw new ForbiddenException();
       }
 
-      return this.pageService.duplicatePage(copiedPage, dto.spaceId, user);
+      result = await this.pageService.duplicatePage(
+        copiedPage,
+        dto.spaceId,
+        user,
+      );
+
+      this.auditService.log({
+        event: AuditEvent.PAGE_DUPLICATED,
+        resourceType: AuditResource.PAGE,
+        resourceId: result.id,
+        spaceId: dto.spaceId,
+        metadata: {
+          sourcePageId: copiedPage.id,
+          title: getPageTitle(copiedPage.title),
+          sourceSpaceId: copiedPage.spaceId,
+          targetSpaceId: dto.spaceId,
+          ...(result.childPageIds.length > 0 && {
+            childPageIds: result.childPageIds,
+          }),
+        },
+      });
     } else {
       // If no spaceId, it's a duplicate in same space
       const ability = await this.spaceAbility.createForUser(
@@ -451,8 +555,28 @@ export class PageController {
         throw new ForbiddenException();
       }
 
-      return this.pageService.duplicatePage(copiedPage, undefined, user);
+      result = await this.pageService.duplicatePage(
+        copiedPage,
+        undefined,
+        user,
+      );
+
+      this.auditService.log({
+        event: AuditEvent.PAGE_DUPLICATED,
+        resourceType: AuditResource.PAGE,
+        resourceId: result.id,
+        spaceId: copiedPage.spaceId,
+        metadata: {
+          sourcePageId: copiedPage.id,
+          title: getPageTitle(copiedPage.title),
+          ...(result.childPageIds.length > 0 && {
+            childPageIds: result.childPageIds,
+          }),
+        },
+      });
     }
+
+    return result;
   }
 
   @HttpCode(HttpStatus.OK)

apps/server/src/core/page/services/page.service.ts

@@ -368,6 +368,8 @@ export class PageService {
   }
 
   async movePageToSpace(rootPage: Page, spaceId: string, userId: string) {
+    let childPageIds: string[] = [];
+
     const allPages = await this.pageRepo.getPageAndDescendants(rootPage.id, {
       includeContent: false,
     });
@@ -413,11 +415,13 @@ export class PageService {
 
       const pageIdsToMove = accessiblePages.map((p) => p.id);
 
+      childPageIds = pageIdsToMove.filter((id) => id !== rootPage.id);
+
       if (pageIdsToMove.length > 1) {
         // Update sub pages (all accessible pages except root)
         await this.pageRepo.updatePages(
           { spaceId },
-          pageIdsToMove.filter((id) => id !== rootPage.id),
+          childPageIds,
           trx,
         );
       }
@@ -462,6 +466,8 @@ export class PageService {
         });
       }
     });
+
+    return { childPageIds };
   }
 
   async duplicatePage(
@@ -680,10 +686,12 @@ export class PageService {
     });
 
     const hasChildren = pages.length > 1;
+    const childPageIds = insertedPageIds.filter((id) => id !== newPageId);
 
     return {
       ...duplicatedPage,
       hasChildren,
+      childPageIds,
     };
   }
 

apps/server/src/core/page/services/trash-cleanup.service.ts

@@ -6,10 +6,11 @@ import { InjectQueue } from '@nestjs/bullmq';
 import { Queue } from 'bullmq';
 import { QueueJob, QueueName } from '../../../integrations/queue/constants';
 
+const DEFAULT_RETENTION_DAYS = 30;
+
 @Injectable()
 export class TrashCleanupService {
   private readonly logger = new Logger(TrashCleanupService.name);
-  private readonly RETENTION_DAYS = 30;
 
   constructor(
     @InjectKysely() private readonly db: KyselyDB,
@@ -21,36 +22,46 @@ export class TrashCleanupService {
     try {
       this.logger.debug('Starting trash cleanup job');
 
-      const retentionDate = new Date();
-      retentionDate.setDate(retentionDate.getDate() - this.RETENTION_DAYS);
-
-      // Get all pages that were deleted more than 30 days ago
-      const oldDeletedPages = await this.db
-        .selectFrom('pages')
-        .select(['id', 'spaceId', 'workspaceId'])
-        .where('deletedAt', '<', retentionDate)
+      const workspaces = await this.db
+        .selectFrom('workspaces')
+        .select(['id', 'trashRetentionDays'])
+        .where('deletedAt', 'is', null)
         .execute();
 
-      if (oldDeletedPages.length === 0) {
-        this.logger.debug('No old trash items to clean up');
-        return;
-      }
+      let totalCleaned = 0;
 
-      this.logger.debug(`Found ${oldDeletedPages.length} pages to clean up`);
+      for (const workspace of workspaces) {
+        const retentionDays =
+          workspace.trashRetentionDays ?? DEFAULT_RETENTION_DAYS;
 
-      // Process each page
-      for (const page of oldDeletedPages) {
-        try {
-          await this.cleanupPage(page.id);
-        } catch (error) {
-          this.logger.error(
-            `Failed to cleanup page ${page.id}: ${error instanceof Error ? error.message : 'Unknown error'}`,
-            error instanceof Error ? error.stack : undefined,
-          );
+        const retentionDate = new Date();
+        retentionDate.setDate(retentionDate.getDate() - retentionDays);
+
+        const oldDeletedPages = await this.db
+          .selectFrom('pages')
+          .select(['id'])
+          .where('workspaceId', '=', workspace.id)
+          .where('deletedAt', '<', retentionDate)
+          .execute();
+
+        for (const page of oldDeletedPages) {
+          try {
+            await this.cleanupPage(page.id);
+            totalCleaned++;
+          } catch (error) {
+            this.logger.error(
+              `Failed to cleanup page ${page.id}: ${error instanceof Error ? error.message : 'Unknown error'}`,
+              error instanceof Error ? error.stack : undefined,
+            );
+          }
         }
       }
 
-      this.logger.debug('Trash cleanup job completed');
+      this.logger.debug(
+        totalCleaned > 0
+          ? `Trash cleanup completed: ${totalCleaned} pages cleaned`
+          : 'No old trash items to clean up',
+      );
     } catch (error) {
       this.logger.error(
         'Trash cleanup job failed',

apps/server/src/core/share/share.controller.ts

@@ -5,6 +5,7 @@ import {
   ForbiddenException,
   HttpCode,
   HttpStatus,
+  Inject,
   NotFoundException,
   Post,
   UseGuards,
@@ -29,6 +30,11 @@ import { ShareRepo } from '@docmost/db/repos/share/share.repo';
 import { PaginationOptions } from '@docmost/db/pagination/pagination-options';
 import { EnvironmentService } from '../../integrations/environment/environment.service';
 import { hasLicenseOrEE } from '../../common/helpers';
+import { AuditEvent, AuditResource } from '../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../integrations/audit/audit.service';
 
 @UseGuards(JwtAuthGuard)
 @Controller('shares')
@@ -40,6 +46,7 @@ export class ShareController {
     private readonly pagePermissionRepo: PagePermissionRepo,
     private readonly pageAccessService: PageAccessService,
     private readonly environmentService: EnvironmentService,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   @HttpCode(HttpStatus.OK)
@@ -156,12 +163,25 @@ export class ShareController {
       throw new ForbiddenException('Public sharing is disabled');
     }
 
-    return this.shareService.createShare({
+    const share = await this.shareService.createShare({
       page,
       authUserId: user.id,
       workspaceId: workspace.id,
       createShareDto,
     });
+
+    this.auditService.log({
+      event: AuditEvent.SHARE_CREATED,
+      resourceType: AuditResource.SHARE,
+      resourceId: share.id,
+      spaceId: page.spaceId,
+      metadata: {
+        pageId: page.id,
+        spaceId: page.spaceId,
+      },
+    });
+
+    return share;
   }
 
   @HttpCode(HttpStatus.OK)
@@ -202,6 +222,19 @@ export class ShareController {
     await this.pageAccessService.validateCanEdit(page, user);
 
     await this.shareRepo.deleteShare(share.id);
+
+    this.auditService.log({
+      event: AuditEvent.SHARE_DELETED,
+      resourceType: AuditResource.SHARE,
+      resourceId: share.id,
+      spaceId: share.spaceId,
+      changes: {
+        before: {
+          pageId: share.pageId,
+          spaceId: share.spaceId,
+        },
+      },
+    });
   }
 
   @Public()

apps/server/src/core/space/services/space-member.service.ts

@@ -1,5 +1,6 @@
 import {
   BadRequestException,
+  Inject,
   Injectable,
   NotFoundException,
 } from '@nestjs/common';
@@ -17,6 +18,11 @@ import { SpaceRole } from '../../../common/helpers/types/permission';
 import { CursorPaginationResult } from '@docmost/db/pagination/cursor-pagination';
 import { WatcherRepo } from '@docmost/db/repos/watcher/watcher.repo';
 import { executeTx } from '@docmost/db/utils';
+import { AuditEvent, AuditResource } from '../../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../../integrations/audit/audit.service';
 
 @Injectable()
 export class SpaceMemberService {
@@ -26,6 +32,7 @@ export class SpaceMemberService {
     private spaceRepo: SpaceRepo,
     private watcherRepo: WatcherRepo,
     @InjectKysely() private readonly db: KyselyDB,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   async addUserToSpace(
@@ -90,7 +97,6 @@ export class SpaceMemberService {
     authUser: User,
     workspaceId: string,
   ): Promise<void> {
-    // await this.spaceService.findAndValidateSpace(spaceId, workspaceId);
 
     const space = await this.spaceRepo.findById(dto.spaceId, workspaceId);
     if (!space) {
@@ -164,8 +170,45 @@ export class SpaceMemberService {
 
     if (membersToAdd.length > 0) {
       await this.spaceMemberRepo.insertSpaceMember(membersToAdd);
-    } else {
-      // either they are already members or do not exist on the workspace
+
+      // Audit log for each member added
+      for (const user of validUsers) {
+        this.auditService.log({
+          event: AuditEvent.SPACE_MEMBER_ADDED,
+          resourceType: AuditResource.SPACE_MEMBER,
+          resourceId: dto.spaceId,
+          spaceId: dto.spaceId,
+          changes: {
+            after: { role: dto.role },
+          },
+          metadata: {
+            spaceId: dto.spaceId,
+            spaceName: space.name,
+            userId: user.id,
+            userName: user.name,
+            memberType: 'user',
+          },
+        });
+      }
+
+      for (const group of validGroups) {
+        this.auditService.log({
+          event: AuditEvent.SPACE_MEMBER_ADDED,
+          resourceType: AuditResource.SPACE_MEMBER,
+          resourceId: dto.spaceId,
+          spaceId: dto.spaceId,
+          changes: {
+            after: { role: dto.role },
+          },
+          metadata: {
+            spaceId: dto.spaceId,
+            spaceName: space.name,
+            groupId: group.id,
+            groupName: group.name,
+            memberType: 'group',
+          },
+        });
+      }
     }
   }
 
@@ -230,6 +273,23 @@ export class SpaceMemberService {
         { trx },
       );
     });
+
+    this.auditService.log({
+      event: AuditEvent.SPACE_MEMBER_REMOVED,
+      resourceType: AuditResource.SPACE_MEMBER,
+      resourceId: dto.spaceId,
+      spaceId: dto.spaceId,
+      changes: {
+        before: { role: spaceMember.role },
+      },
+      metadata: {
+        spaceId: dto.spaceId,
+        spaceName: space.name,
+        userId: spaceMember.userId,
+        groupId: spaceMember.groupId,
+        memberType: spaceMember.userId ? 'user' : 'group',
+      },
+    });
   }
 
   async updateSpaceMemberRole(
@@ -280,6 +340,24 @@ export class SpaceMemberService {
       spaceMember.id,
       dto.spaceId,
     );
+
+    this.auditService.log({
+      event: AuditEvent.SPACE_MEMBER_ROLE_CHANGED,
+      resourceType: AuditResource.SPACE_MEMBER,
+      resourceId: dto.spaceId,
+      spaceId: dto.spaceId,
+      changes: {
+        before: { role: spaceMember.role },
+        after: { role: dto.role },
+      },
+      metadata: {
+        spaceId: dto.spaceId,
+        spaceName: space.name,
+        userId: spaceMember.userId,
+        groupId: spaceMember.groupId,
+        memberType: spaceMember.userId ? 'user' : 'group',
+      },
+    });
   }
 
   async validateLastAdmin(spaceId: string): Promise<void> {

apps/server/src/core/space/services/space.service.ts

@@ -1,6 +1,7 @@
 import {
   BadRequestException,
   ForbiddenException,
+  Inject,
   Injectable,
   NotFoundException,
 } from '@nestjs/common';
@@ -21,6 +22,12 @@ import { CursorPaginationResult } from '@docmost/db/pagination/cursor-pagination
 import { ShareRepo } from '@docmost/db/repos/share/share.repo';
 import { WorkspaceRepo } from '@docmost/db/repos/workspace/workspace.repo';
 import { LicenseCheckService } from '../../../integrations/environment/license-check.service';
+import { AuditEvent, AuditResource } from '../../../common/events/audit-events';
+import { diffAuditTrackedFields } from '../../../common/helpers';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../../integrations/audit/audit.service';
 
 @Injectable()
 export class SpaceService {
@@ -32,6 +39,7 @@ export class SpaceService {
     private licenseCheckService: LicenseCheckService,
     @InjectKysely() private readonly db: KyselyDB,
     @InjectQueue(QueueName.ATTACHMENT_QUEUE) private attachmentQueue: Queue,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   async createSpace(
@@ -63,6 +71,19 @@ export class SpaceService {
       trx,
     );
 
+    this.auditService.log({
+      event: AuditEvent.SPACE_CREATED,
+      resourceType: AuditResource.SPACE,
+      resourceId: space.id,
+      spaceId: space.id,
+      changes: {
+        after: {
+          name: space.name,
+          slug: space.slug,
+        },
+      },
+    });
+
     return { ...space, memberCount: 1 };
   }
 
@@ -124,28 +145,74 @@ export class SpaceService {
           'This feature requires a valid enterprise license',
         );
       }
-
-      await this.spaceRepo.updateSharingSettings(
-        updateSpaceDto.spaceId,
-        workspaceId,
-        'disabled',
-        updateSpaceDto.disablePublicSharing,
-      );
-
-      if (updateSpaceDto.disablePublicSharing) {
-        await this.shareRepo.deleteBySpaceId(updateSpaceDto.spaceId);
-      }
     }
 
-    return await this.spaceRepo.updateSpace(
-      {
-        name: updateSpaceDto.name,
-        description: updateSpaceDto.description,
-        slug: updateSpaceDto.slug,
-      },
+    const spaceBefore = await this.spaceRepo.findById(
       updateSpaceDto.spaceId,
       workspaceId,
     );
+    const settingsBefore = (spaceBefore?.settings ?? {}) as Record<string, any>;
+
+    const before: Record<string, any> = {};
+    const after: Record<string, any> = {};
+
+    let updatedSpace: Space;
+
+    await executeTx(this.db, async (trx) => {
+      if (typeof updateSpaceDto.disablePublicSharing !== 'undefined') {
+        const prev = settingsBefore?.sharing?.disabled ?? false;
+        if (prev !== updateSpaceDto.disablePublicSharing) {
+          before.disablePublicSharing = prev;
+          after.disablePublicSharing = updateSpaceDto.disablePublicSharing;
+        }
+
+        await this.spaceRepo.updateSharingSettings(
+          updateSpaceDto.spaceId,
+          workspaceId,
+          'disabled',
+          updateSpaceDto.disablePublicSharing,
+          trx,
+        );
+
+        if (updateSpaceDto.disablePublicSharing) {
+          await this.shareRepo.deleteBySpaceId(updateSpaceDto.spaceId, trx);
+        }
+      }
+
+      updatedSpace = await this.spaceRepo.updateSpace(
+        {
+          name: updateSpaceDto.name,
+          description: updateSpaceDto.description,
+          slug: updateSpaceDto.slug,
+        },
+        updateSpaceDto.spaceId,
+        workspaceId,
+        trx,
+      );
+    });
+
+    const columnChanges = diffAuditTrackedFields(
+      ['name', 'slug', 'description'],
+      updateSpaceDto,
+      spaceBefore,
+      updatedSpace,
+    );
+    if (columnChanges) {
+      Object.assign(before, columnChanges.before);
+      Object.assign(after, columnChanges.after);
+    }
+
+    if (Object.keys(after).length > 0) {
+      this.auditService.log({
+        event: AuditEvent.SPACE_UPDATED,
+        resourceType: AuditResource.SPACE,
+        resourceId: updateSpaceDto.spaceId,
+        spaceId: updateSpaceDto.spaceId,
+        changes: { before, after },
+      });
+    }
+
+    return updatedSpace;
   }
 
   async getSpaceInfo(spaceId: string, workspaceId: string): Promise<Space> {
@@ -174,5 +241,19 @@ export class SpaceService {
 
     await this.spaceRepo.deleteSpace(spaceId, workspaceId);
     await this.attachmentQueue.add(QueueJob.DELETE_SPACE_ATTACHMENTS, space);
+
+    this.auditService.log({
+      event: AuditEvent.SPACE_DELETED,
+      resourceType: AuditResource.SPACE,
+      resourceId: spaceId,
+      spaceId: spaceId,
+      changes: {
+        before: {
+          name: space.name,
+          slug: space.slug,
+          description: space.description,
+        },
+      },
+    });
   }
 }

apps/server/src/core/user/user.service.ts

@@ -1,18 +1,27 @@
 import { UserRepo } from '@docmost/db/repos/user/user.repo';
 import {
   BadRequestException,
+  Inject,
   Injectable,
   NotFoundException,
   UnauthorizedException,
 } from '@nestjs/common';
 import { UpdateUserDto } from './dto/update-user.dto';
-import { comparePasswordHash } from 'src/common/helpers/utils';
+import { comparePasswordHash, diffAuditTrackedFields } from 'src/common/helpers/utils';
 import { Workspace } from '@docmost/db/types/entity.types';
 import { validateSsoEnforcement } from '../auth/auth.util';
+import { AuditEvent, AuditResource } from '../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../integrations/audit/audit.service';
 
 @Injectable()
 export class UserService {
-  constructor(private userRepo: UserRepo) {}
+  constructor(
+    private userRepo: UserRepo,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
+  ) {}
 
   async findById(userId: string, workspaceId: string) {
     return this.userRepo.findById(userId, workspaceId);
@@ -51,6 +60,8 @@ export class UserService {
       );
     }
 
+    const userBefore = { name: user.name, email: user.email, locale: user.locale };
+
     if (updateUserDto.name) {
       user.name = updateUserDto.name;
     }
@@ -91,6 +102,23 @@ export class UserService {
     delete updateUserDto.confirmPassword;
 
     await this.userRepo.updateUser(updateUserDto, userId, workspace.id);
+
+    const changes = diffAuditTrackedFields(
+      ['name', 'email'],
+      updateUserDto,
+      userBefore,
+      user,
+    );
+
+    if (changes) {
+      this.auditService.log({
+        event: AuditEvent.USER_UPDATED,
+        resourceType: AuditResource.USER,
+        resourceId: userId,
+        changes,
+      });
+    }
+
     return user;
   }
 }

apps/server/src/core/workspace/dto/update-workspace.dto.ts

@@ -1,6 +1,13 @@
 import { PartialType } from '@nestjs/mapped-types';
 import { CreateWorkspaceDto } from './create-workspace.dto';
-import { IsArray, IsBoolean, IsOptional, IsString } from 'class-validator';
+import {
+  IsArray,
+  IsBoolean,
+  IsInt,
+  IsOptional,
+  IsString,
+  Min,
+} from 'class-validator';
 
 export class UpdateWorkspaceDto extends PartialType(CreateWorkspaceDto) {
   @IsOptional()
@@ -34,4 +41,9 @@ export class UpdateWorkspaceDto extends PartialType(CreateWorkspaceDto) {
   @IsOptional()
   @IsBoolean()
   disablePublicSharing: boolean;
+
+  @IsOptional()
+  @IsInt()
+  @Min(1)
+  trashRetentionDays: number;
 }

apps/server/src/core/workspace/services/workspace-invitation.service.ts

@@ -1,5 +1,6 @@
 import {
   BadRequestException,
+  Inject,
   Injectable,
   Logger,
   NotFoundException,
@@ -33,6 +34,11 @@ import {
   validateAllowedEmail,
   validateSsoEnforcement,
 } from '../../auth/auth.util';
+import { AuditEvent, AuditResource } from '../../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../../integrations/audit/audit.service';
 
 @Injectable()
 export class WorkspaceInvitationService {
@@ -46,6 +52,7 @@ export class WorkspaceInvitationService {
     @InjectKysely() private readonly db: KyselyDB,
     @InjectQueue(QueueName.BILLING_QUEUE) private billingQueue: Queue,
     private readonly environmentService: EnvironmentService,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   async getInvitations(workspaceId: string, pagination: PaginationOptions) {
@@ -180,6 +187,24 @@ export class WorkspaceInvitationService {
           workspace.hostname,
         );
       });
+
+      // Audit log for each invitation created
+      for (const invitation of invites) {
+        this.auditService.log({
+          event: AuditEvent.WORKSPACE_INVITE_CREATED,
+          resourceType: AuditResource.WORKSPACE_INVITATION,
+          resourceId: invitation.id,
+          changes: {
+            after: {
+              email: invitation.email,
+              role: invitation.role,
+            },
+          },
+          metadata: {
+            groupIds: invitation.groupIds,
+          },
+        });
+      }
     }
   }
 
@@ -296,6 +321,23 @@ export class WorkspaceInvitationService {
       });
     }
 
+    this.auditService.log({
+      event: AuditEvent.USER_CREATED,
+      resourceType: AuditResource.USER,
+      resourceId: newUser.id,
+      changes: {
+        after: {
+          name: newUser.name,
+          email: newUser.email,
+          role: invitation.role,
+        },
+      },
+      metadata: {
+        source: 'invitation',
+        invitationId: invitation.id,
+      },
+    });
+
     if (this.environmentService.isCloud()) {
       await this.billingQueue.add(QueueJob.STRIPE_SEATS_SYNC, {
         workspaceId: workspace.id,
@@ -339,17 +381,48 @@ export class WorkspaceInvitationService {
       invitedByUser.name,
       workspace.hostname,
     );
+
+    this.auditService.log({
+      event: AuditEvent.WORKSPACE_INVITE_RESENT,
+      resourceType: AuditResource.WORKSPACE_INVITATION,
+      resourceId: invitation.id,
+      metadata: {
+        email: invitation.email,
+        role: invitation.role,
+      },
+    });
   }
 
   async revokeInvitation(
     invitationId: string,
     workspaceId: string,
   ): Promise<void> {
+    const invitation = await this.db
+      .selectFrom('workspaceInvitations')
+      .select(['id', 'email', 'role'])
+      .where('id', '=', invitationId)
+      .where('workspaceId', '=', workspaceId)
+      .executeTakeFirst();
+
     await this.db
       .deleteFrom('workspaceInvitations')
       .where('id', '=', invitationId)
       .where('workspaceId', '=', workspaceId)
       .execute();
+
+    if (invitation) {
+      this.auditService.log({
+        event: AuditEvent.WORKSPACE_INVITE_REVOKED,
+        resourceType: AuditResource.WORKSPACE_INVITATION,
+        resourceId: invitation.id,
+        changes: {
+          before: {
+            email: invitation.email,
+            role: invitation.role,
+          },
+        },
+      });
+    }
   }
 
   async getInvitationLinkById(

apps/server/src/core/workspace/services/workspace.service.ts

@@ -1,6 +1,7 @@
 import {
   BadRequestException,
   ForbiddenException,
+  Inject,
   Injectable,
   Logger,
   NotFoundException,
@@ -31,11 +32,19 @@ import { v4 } from 'uuid';
 import { InjectQueue } from '@nestjs/bullmq';
 import { QueueJob, QueueName } from '../../../integrations/queue/constants';
 import { Queue } from 'bullmq';
-import { generateRandomSuffixNumbers } from '../../../common/helpers';
+import {
+  generateRandomSuffixNumbers,
+  diffAuditTrackedFields,
+} from '../../../common/helpers';
 import { isPageEmbeddingsTableExists } from '@docmost/db/helpers/helpers';
 import { CursorPaginationResult } from '@docmost/db/pagination/cursor-pagination';
 import { ShareRepo } from '@docmost/db/repos/share/share.repo';
 import { WatcherRepo } from '@docmost/db/repos/watcher/watcher.repo';
+import { AuditEvent, AuditResource } from '../../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../../integrations/audit/audit.service';
 
 @Injectable()
 export class WorkspaceService {
@@ -57,6 +66,7 @@ export class WorkspaceService {
     @InjectQueue(QueueName.ATTACHMENT_QUEUE) private attachmentQueue: Queue,
     @InjectQueue(QueueName.BILLING_QUEUE) private billingQueue: Queue,
     @InjectQueue(QueueName.AI_QUEUE) private aiQueue: Queue,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   async findById(workspaceId: string) {
@@ -280,7 +290,7 @@ export class WorkspaceService {
     if (updateWorkspaceDto.enforceSso) {
       const sso = await this.db
         .selectFrom('authProviders')
-        .selectAll()
+        .select(['id'])
         .where('isEnabled', '=', true)
         .where('workspaceId', '=', workspaceId)
         .execute();
@@ -295,9 +305,7 @@ export class WorkspaceService {
     if (updateWorkspaceDto.emailDomains) {
       const regex =
         /(?:[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?\.)+[a-z0-9][a-z0-9-]{0,61}[a-z0-9]/;
-
       const emailDomains = updateWorkspaceDto.emailDomains || [];
-
       updateWorkspaceDto.emailDomains = emailDomains
         .map((domain) => regex.exec(domain)?.[0])
         .filter(Boolean);
@@ -313,93 +321,170 @@ export class WorkspaceService {
       }
     }
 
-    if (typeof updateWorkspaceDto.restrictApiToAdmins !== 'undefined') {
-      await this.workspaceRepo.updateApiSettings(
-        workspaceId,
-        'restrictToAdmins',
-        updateWorkspaceDto.restrictApiToAdmins,
-      );
-      delete updateWorkspaceDto.restrictApiToAdmins;
-    }
+    const before: Record<string, any> = {};
+    const after: Record<string, any> = {};
 
-    if (typeof updateWorkspaceDto.aiSearch !== 'undefined') {
-      await this.workspaceRepo.updateAiSettings(
-        workspaceId,
-        'search',
-        updateWorkspaceDto.aiSearch,
-      );
+    if (
+      typeof updateWorkspaceDto.disablePublicSharing !== 'undefined' ||
+      typeof updateWorkspaceDto.trashRetentionDays !== 'undefined'
+    ) {
+      const ws = await this.db
+        .selectFrom('workspaces')
+        .select(['id', 'licenseKey', 'trashRetentionDays'])
+        .where('id', '=', workspaceId)
+        .executeTakeFirst();
 
-      if (updateWorkspaceDto.aiSearch) {
-        const tableExists = await isPageEmbeddingsTableExists(this.db);
-        if (!tableExists) {
-          throw new BadRequestException(
-            'Failed to activate. Make sure pgvector postgres extension is installed.',
-          );
-        }
-
-        await this.aiQueue.add(QueueJob.WORKSPACE_CREATE_EMBEDDINGS, {
-          workspaceId,
-        });
-      } else {
-        // Schedule deletion after 24 hours
-        const deleteJobId = `ai-search-disabled-${workspaceId}`;
-        await this.aiQueue.add(
-          QueueJob.WORKSPACE_DELETE_EMBEDDINGS,
-          { workspaceId },
-          {
-            jobId: deleteJobId,
-            delay: 24 * 60 * 60 * 1000,
-            removeOnComplete: true,
-            removeOnFail: true,
-          },
-        );
-      }
-
-      delete updateWorkspaceDto.aiSearch;
-    }
-
-    if (typeof updateWorkspaceDto.generativeAi !== 'undefined') {
-      await this.workspaceRepo.updateAiSettings(
-        workspaceId,
-        'generative',
-        updateWorkspaceDto.generativeAi,
-      );
-      delete updateWorkspaceDto.generativeAi;
-    }
-
-    if (typeof updateWorkspaceDto.disablePublicSharing !== 'undefined') {
-      const currentWorkspace = await this.workspaceRepo.findById(workspaceId, {
-        withLicenseKey: true,
-      });
-
-      if (
-        !this.licenseCheckService.isValidEELicense(currentWorkspace.licenseKey)
-      ) {
+      if (!this.licenseCheckService.isValidEELicense(ws.licenseKey)) {
         throw new ForbiddenException(
           'This feature requires a valid enterprise license',
         );
       }
 
-      await this.workspaceRepo.updateSharingSettings(
-        workspaceId,
-        'disabled',
-        updateWorkspaceDto.disablePublicSharing,
-      );
-
-      if (updateWorkspaceDto.disablePublicSharing) {
-        await this.shareRepo.deleteByWorkspaceId(workspaceId);
+      if (
+        typeof updateWorkspaceDto.trashRetentionDays !== 'undefined' &&
+        updateWorkspaceDto.trashRetentionDays !== ws.trashRetentionDays
+      ) {
+        before.trashRetentionDays = ws.trashRetentionDays;
+        after.trashRetentionDays = updateWorkspaceDto.trashRetentionDays;
       }
-
-      delete updateWorkspaceDto.disablePublicSharing;
     }
 
-    await this.workspaceRepo.updateWorkspace(updateWorkspaceDto, workspaceId);
+    if (updateWorkspaceDto.aiSearch) {
+      const tableExists = await isPageEmbeddingsTableExists(this.db);
+      if (!tableExists) {
+        throw new BadRequestException(
+          'Failed to activate. Make sure pgvector postgres extension is installed.',
+        );
+      }
+    }
+
+    const workspaceBefore = await this.workspaceRepo.findById(workspaceId);
+    const settingsBefore = (workspaceBefore?.settings ?? {}) as Record<
+      string,
+      any
+    >;
+
+    await executeTx(this.db, async (trx) => {
+      if (typeof updateWorkspaceDto.restrictApiToAdmins !== 'undefined') {
+        const prev = settingsBefore?.api?.restrictToAdmins ?? false;
+        if (prev !== updateWorkspaceDto.restrictApiToAdmins) {
+          before.restrictApiToAdmins = prev;
+          after.restrictApiToAdmins = updateWorkspaceDto.restrictApiToAdmins;
+        }
+        await this.workspaceRepo.updateApiSettings(
+          workspaceId,
+          'restrictToAdmins',
+          updateWorkspaceDto.restrictApiToAdmins,
+          trx,
+        );
+      }
+
+      if (typeof updateWorkspaceDto.aiSearch !== 'undefined') {
+        const prev = settingsBefore?.ai?.search ?? false;
+        if (prev !== updateWorkspaceDto.aiSearch) {
+          before.aiSearch = prev;
+          after.aiSearch = updateWorkspaceDto.aiSearch;
+        }
+        await this.workspaceRepo.updateAiSettings(
+          workspaceId,
+          'search',
+          updateWorkspaceDto.aiSearch,
+          trx,
+        );
+      }
+
+      if (typeof updateWorkspaceDto.generativeAi !== 'undefined') {
+        const prev = settingsBefore?.ai?.generative ?? false;
+        if (prev !== updateWorkspaceDto.generativeAi) {
+          before.generativeAi = prev;
+          after.generativeAi = updateWorkspaceDto.generativeAi;
+        }
+        await this.workspaceRepo.updateAiSettings(
+          workspaceId,
+          'generative',
+          updateWorkspaceDto.generativeAi,
+          trx,
+        );
+      }
+
+      if (typeof updateWorkspaceDto.disablePublicSharing !== 'undefined') {
+        const prev = settingsBefore?.sharing?.disabled ?? false;
+        if (prev !== updateWorkspaceDto.disablePublicSharing) {
+          before.disablePublicSharing = prev;
+          after.disablePublicSharing = updateWorkspaceDto.disablePublicSharing;
+        }
+        await this.workspaceRepo.updateSharingSettings(
+          workspaceId,
+          'disabled',
+          updateWorkspaceDto.disablePublicSharing,
+          trx,
+        );
+        if (updateWorkspaceDto.disablePublicSharing) {
+          await this.shareRepo.deleteByWorkspaceId(workspaceId, trx);
+        }
+      }
+
+      delete updateWorkspaceDto.restrictApiToAdmins;
+      delete updateWorkspaceDto.aiSearch;
+      delete updateWorkspaceDto.generativeAi;
+      delete updateWorkspaceDto.disablePublicSharing;
+
+      await this.workspaceRepo.updateWorkspace(
+        updateWorkspaceDto,
+        workspaceId,
+        trx,
+      );
+    });
+
+    if (after.aiSearch === true) {
+      await this.aiQueue.add(QueueJob.WORKSPACE_CREATE_EMBEDDINGS, {
+        workspaceId,
+      });
+    } else if (after.aiSearch === false) {
+      const deleteJobId = `ai-search-disabled-${workspaceId}`;
+      await this.aiQueue.add(
+        QueueJob.WORKSPACE_DELETE_EMBEDDINGS,
+        { workspaceId },
+        {
+          jobId: deleteJobId,
+          delay: 24 * 60 * 60 * 1000,
+          removeOnComplete: true,
+          removeOnFail: true,
+        },
+      );
+    }
 
     const workspace = await this.workspaceRepo.findById(workspaceId, {
       withMemberCount: true,
       withLicenseKey: true,
     });
 
+    const columnChanges = diffAuditTrackedFields(
+      [
+        'name',
+        'logo',
+        'enforceSso',
+        'enforceMfa',
+        'emailDomains',
+      ],
+      updateWorkspaceDto,
+      workspaceBefore,
+      workspace,
+    );
+    if (columnChanges) {
+      Object.assign(before, columnChanges.before);
+      Object.assign(after, columnChanges.after);
+    }
+
+    if (Object.keys(after).length > 0) {
+      this.auditService.log({
+        event: AuditEvent.WORKSPACE_UPDATED,
+        resourceType: AuditResource.WORKSPACE,
+        resourceId: workspaceId,
+        changes: { before, after },
+      });
+    }
+
     const { licenseKey, ...rest } = workspace;
     return {
       ...rest,
@@ -457,6 +542,16 @@ export class WorkspaceService {
       user.id,
       workspaceId,
     );
+
+    this.auditService.log({
+      event: AuditEvent.USER_ROLE_CHANGED,
+      resourceType: AuditResource.USER,
+      resourceId: user.id,
+      changes: {
+        before: { role: user.role },
+        after: { role: newRole },
+      },
+    });
   }
 
   async generateHostname(
@@ -564,6 +659,19 @@ export class WorkspaceService {
       });
     });
 
+    this.auditService.log({
+      event: AuditEvent.USER_DELETED,
+      resourceType: AuditResource.USER,
+      resourceId: user.id,
+      changes: {
+        before: {
+          name: user.name,
+          email: user.email,
+          role: user.role,
+        },
+      },
+    });
+
     try {
       await this.attachmentQueue.add(QueueJob.DELETE_USER_AVATARS, user);
     } catch (err) {

apps/server/src/database/migrations/20260228T223532-audit.ts

@@ -0,0 +1,60 @@
+import { Kysely, sql } from 'kysely';
+
+export async function up(db: Kysely<any>): Promise<void> {
+  await db.schema
+    .createTable('audit')
+    .ifNotExists()
+    .addColumn('id', 'uuid', (col) =>
+      col.primaryKey().defaultTo(sql`gen_uuid_v7()`),
+    )
+    .addColumn('workspace_id', 'uuid', (col) =>
+      col.notNull().references('workspaces.id').onDelete('cascade'),
+    )
+    .addColumn('actor_id', 'uuid')
+    .addColumn('actor_type', 'varchar', (col) =>
+      col.notNull().defaultTo('user'),
+    )
+    .addColumn('event', 'varchar', (col) => col.notNull())
+    .addColumn('resource_type', 'varchar', (col) => col.notNull())
+    .addColumn('resource_id', 'uuid')
+    .addColumn('space_id', 'uuid')
+    .addColumn('changes', 'jsonb')
+    .addColumn('metadata', 'jsonb')
+    .addColumn('ip_address', sql`inet`)
+    .addColumn('created_at', 'timestamptz', (col) =>
+      col.notNull().defaultTo(sql`now()`),
+    )
+    .execute();
+
+  await db.schema
+    .createIndex('idx_audit_workspace_id')
+    .ifNotExists()
+    .on('audit')
+    .columns(['workspace_id', 'id desc'])
+    .execute();
+
+  // add new workspace columns
+  await db.schema
+    .alterTable('workspaces')
+    .addColumn('audit_retention_days', 'int8', (col) => col)
+    .execute();
+
+  await db.schema
+    .alterTable('workspaces')
+    .addColumn('trash_retention_days', 'int8', (col) => col)
+    .execute();
+}
+
+export async function down(db: Kysely<any>): Promise<void> {
+  await db.schema
+    .alterTable('workspaces')
+    .dropColumn('audit_retention_days')
+    .execute();
+
+  await db.schema
+    .alterTable('workspaces')
+    .dropColumn('trash_retention_days')
+    .execute();
+
+  await db.schema.dropTable('audit').execute();
+}

apps/server/src/database/repos/share/share.repo.ts

@@ -136,15 +136,23 @@ export class ShareRepo {
     await query.execute();
   }
 
-  async deleteBySpaceId(spaceId: string): Promise<void> {
-    await this.db
+  async deleteBySpaceId(
+    spaceId: string,
+    trx?: KyselyTransaction,
+  ): Promise<void> {
+    const db = dbOrTx(this.db, trx);
+    await db
       .deleteFrom('shares')
       .where('spaceId', '=', spaceId)
       .execute();
   }
 
-  async deleteByWorkspaceId(workspaceId: string): Promise<void> {
-    await this.db
+  async deleteByWorkspaceId(
+    workspaceId: string,
+    trx?: KyselyTransaction,
+  ): Promise<void> {
+    const db = dbOrTx(this.db, trx);
+    await db
       .deleteFrom('shares')
       .where('workspaceId', '=', workspaceId)
       .execute();

apps/server/src/database/repos/space/space.repo.ts

@@ -94,8 +94,10 @@ export class SpaceRepo {
     workspaceId: string,
     prefKey: string,
     prefValue: string | boolean,
+    trx?: KyselyTransaction,
   ) {
-    return this.db
+    const db = dbOrTx(this.db, trx);
+    return db
       .updateTable('spaces')
       .set({
         settings: sql`COALESCE(settings, '{}'::jsonb)

apps/server/src/database/repos/user-token/user-token.repo.ts

@@ -38,9 +38,9 @@ export class UserTokenRepo {
 
   async insertUserToken(
     insertableUserToken: InsertableUserToken,
-    trx?: KyselyTransaction,
+    opts?: { trx?: KyselyTransaction },
   ) {
-    const db = dbOrTx(this.db, trx);
+    const db = dbOrTx(this.db, opts?.trx);
     return db
       .insertInto('userTokens')
       .values(insertableUserToken)

apps/server/src/database/repos/workspace/workspace.repo.ts

@@ -33,6 +33,7 @@ export class WorkspaceRepo {
     'enforceSso',
     'plan',
     'enforceMfa',
+    'trashRetentionDays',
   ];
   constructor(@InjectKysely() private readonly db: KyselyDB) {}
 
@@ -162,8 +163,10 @@ export class WorkspaceRepo {
     workspaceId: string,
     prefKey: string,
     prefValue: string | boolean,
+    trx?: KyselyTransaction,
   ) {
-    return this.db
+    const db = dbOrTx(this.db, trx);
+    return db
       .updateTable('workspaces')
       .set({
         settings: sql`COALESCE(settings, '{}'::jsonb)
@@ -180,8 +183,10 @@ export class WorkspaceRepo {
     workspaceId: string,
     prefKey: string,
     prefValue: string | boolean,
+    trx?: KyselyTransaction,
   ) {
-    return this.db
+    const db = dbOrTx(this.db, trx);
+    return db
       .updateTable('workspaces')
       .set({
         settings: sql`COALESCE(settings, '{}'::jsonb)
@@ -198,8 +203,10 @@ export class WorkspaceRepo {
     workspaceId: string,
     prefKey: string,
     prefValue: string | boolean,
+    trx?: KyselyTransaction,
   ) {
-    return this.db
+    const db = dbOrTx(this.db, trx);
+    return db
       .updateTable('workspaces')
       .set({
         settings: sql`COALESCE(settings, '{}'::jsonb)
@@ -211,4 +218,5 @@ export class WorkspaceRepo {
       .returning(this.baseFields)
       .executeTakeFirst();
   }
+
 }

apps/server/src/database/types/db.d.ts

@@ -61,6 +61,21 @@ export interface Attachments {
   workspaceId: string;
 }
 
+export interface Audit {
+  actorId: string | null;
+  actorType: Generated<string>;
+  changes: Json | null;
+  createdAt: Generated<Timestamp>;
+  event: string;
+  id: Generated<string>;
+  ipAddress: string | null;
+  metadata: Json | null;
+  resourceId: string | null;
+  resourceType: string;
+  spaceId: string | null;
+  workspaceId: string;
+}
+
 export interface AuthAccounts {
   authProviderId: string | null;
   createdAt: Generated<Timestamp>;
@@ -339,6 +354,8 @@ export interface WorkspaceInvitations {
 }
 
 export interface Workspaces {
+  auditRetentionDays: Generated<number>;
+  trashRetentionDays: Generated<number>;
   billingEmail: string | null;
   createdAt: Generated<Timestamp>;
   customDomain: string | null;
@@ -415,6 +432,7 @@ export interface PagePermissions {
 export interface DB {
   apiKeys: ApiKeys;
   attachments: Attachments;
+  audit: Audit;
   authAccounts: AuthAccounts;
   authProviders: AuthProviders;
   backlinks: Backlinks;
@@ -425,9 +443,8 @@ export interface DB {
   groupUsers: GroupUsers;
   notifications: Notifications;
   pageAccess: PageAccess;
-  pageHierarchy: PageHierarchy;
-  pageHistory: PageHistory;
   pagePermissions: PagePermissions;
+  pageHistory: PageHistory;
   pages: Pages;
   shares: Shares;
   spaceMembers: SpaceMembers;

apps/server/src/database/types/entity.types.ts

@@ -24,6 +24,7 @@ import {
   UserMfa as _UserMFA,
   ApiKeys,
   Watchers,
+  Audit as _Audit,
 } from './db';
 import { PageEmbeddings } from '@docmost/db/types/embeddings.types';
 
@@ -155,3 +156,8 @@ export type UpdatablePageAccess = Updateable<Omit<_PageAccess, 'id'>>;
 export type PagePermission = Selectable<_PagePermissions>;
 export type InsertablePagePermission = Insertable<_PagePermissions>;
 export type UpdatablePagePermission = Updateable<Omit<_PagePermissions, 'id'>>;
+
+// Audit
+export type Audit = Selectable<_Audit>;
+export type InsertableAudit = Insertable<_Audit>;
+export type UpdatableAudit = Updateable<Omit<_Audit, 'id'>>;

apps/server/src/integrations/audit/audit.service.ts

@@ -0,0 +1,63 @@
+import { Injectable } from '@nestjs/common';
+import { AuditLogPayload, ActorType } from '../../common/events/audit-events';
+
+export type AuditLogContext = {
+  workspaceId: string;
+  actorId?: string;
+  actorType?: ActorType;
+  ipAddress?: string;
+  userAgent?: string;
+};
+
+export type IAuditService = {
+  log(payload: AuditLogPayload): void | Promise<void>;
+  logWithContext(
+    payload: AuditLogPayload,
+    context: AuditLogContext,
+  ): void | Promise<void>;
+  logBatchWithContext(
+    payloads: AuditLogPayload[],
+    context: AuditLogContext,
+  ): void | Promise<void>;
+  setActorId(actorId: string): void;
+  setActorType(actorType: ActorType): void;
+  updateRetention(
+    workspaceId: string,
+    retentionDays: number,
+  ): void | Promise<void>;
+};
+
+export const AUDIT_SERVICE = Symbol('AUDIT_SERVICE');
+
+@Injectable()
+export class NoopAuditService implements IAuditService {
+  log(_payload: AuditLogPayload): void {
+    // No-op: swallow the log when EE module is not available
+  }
+
+  logWithContext(_payload: AuditLogPayload, _context: AuditLogContext): void {
+    // No-op: swallow the log when EE module is not available
+  }
+
+  logBatchWithContext(
+    _payloads: AuditLogPayload[],
+    _context: AuditLogContext,
+  ): void {
+    // No-op: swallow the log when EE module is not available
+  }
+
+  setActorId(_actorId: string): void {
+    // No-op
+  }
+
+  setActorType(_actorType: ActorType): void {
+    // No-op
+  }
+
+  updateRetention(
+    _workspaceId: string,
+    _retentionDays: number,
+  ): void {
+    // No-op
+  }
+}

apps/server/src/integrations/environment/environment.service.ts

@@ -277,4 +277,14 @@ export class EnvironmentService {
       'http://localhost:11434',
     );
   }
+
+  getEventStoreDriver(): string {
+    return this.configService
+      .get<string>('EVENT_STORE_DRIVER', 'postgres')
+      .toLowerCase();
+  }
+
+  getClickHouseUrl(): string {
+    return this.configService.get<string>('CLICKHOUSE_URL');
+  }
 }

apps/server/src/integrations/environment/environment.validation.ts

@@ -148,6 +148,22 @@ export class EnvironmentVariables {
   @ValidateIf((obj) => obj.AI_DRIVER && obj.AI_DRIVER === 'ollama')
   @IsUrl({ protocols: ['http', 'https'], require_tld: false })
   OLLAMA_API_URL: string;
+
+  @IsOptional()
+  @IsIn(['postgres', 'clickhouse'])
+  @IsString()
+  EVENT_STORE_DRIVER: string;
+
+  @ValidateIf((obj) => obj.EVENT_STORE_DRIVER === 'clickhouse')
+  @IsNotEmpty()
+  @IsUrl(
+    { protocols: ['http', 'https'], require_tld: false },
+    {
+      message:
+        'CLICKHOUSE_URL must be a valid URL e.g http://user:password@localhost:8123/docmost',
+    },
+  )
+  CLICKHOUSE_URL: string;
 }
 
 export function validate(config: Record<string, any>) {

apps/server/src/integrations/export/export.controller.ts

@@ -4,6 +4,7 @@ import {
   ForbiddenException,
   HttpCode,
   HttpStatus,
+  Inject,
   NotFoundException,
   Post,
   Res,
@@ -24,8 +25,13 @@ import {
 import { FastifyReply } from 'fastify';
 import { sanitize } from 'sanitize-filename-ts';
 import { getExportExtension } from './utils';
-import { getMimeType } from '../../common/helpers';
+import { getMimeType, getPageTitle } from '../../common/helpers';
 import * as path from 'path';
+import { AuditEvent, AuditResource } from '../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../integrations/audit/audit.service';
 
 @Controller()
 export class ExportController {
@@ -34,6 +40,7 @@ export class ExportController {
     private readonly pageRepo: PageRepo,
     private readonly spaceAbility: SpaceAbilityFactory,
     private readonly pageAccessService: PageAccessService,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   @UseGuards(JwtAuthGuard)
@@ -62,6 +69,20 @@ export class ExportController {
       user.id,
     );
 
+    this.auditService.log({
+      event: AuditEvent.PAGE_EXPORTED,
+      resourceType: AuditResource.PAGE,
+      resourceId: page.id,
+      spaceId: page.spaceId,
+      metadata: {
+        title: getPageTitle(page.title),
+        format: dto.format,
+        includeChildren: dto.includeChildren,
+        includeAttachments: dto.includeAttachments,
+        spaceId: page.spaceId,
+      },
+    });
+
     const fileName = sanitize(page.title || 'untitled') + '.zip';
 
     res.headers({
@@ -93,6 +114,18 @@ export class ExportController {
       user.id,
     );
 
+    this.auditService.log({
+      event: AuditEvent.SPACE_EXPORTED,
+      resourceType: AuditResource.SPACE,
+      resourceId: dto.spaceId,
+      spaceId: dto.spaceId,
+      metadata: {
+        format: dto.format,
+        includeAttachments: dto.includeAttachments ?? false,
+        spaceName: exportFile.spaceName,
+      },
+    });
+
     res.headers({
       'Content-Type': 'application/zip',
       'Content-Disposition':

apps/server/src/integrations/export/export.service.ts

@@ -239,6 +239,7 @@ export class ExportService {
     return {
       fileStream: zipFile,
       fileName,
+      spaceName: space.name,
     };
   }
 

apps/server/src/integrations/import/import.controller.ts

@@ -4,6 +4,7 @@ import {
   ForbiddenException,
   HttpCode,
   HttpStatus,
+  Inject,
   Logger,
   Post,
   Req,
@@ -24,6 +25,11 @@ import * as path from 'path';
 import { ImportService } from './services/import.service';
 import { AuthWorkspace } from '../../common/decorators/auth-workspace.decorator';
 import { EnvironmentService } from '../environment/environment.service';
+import { AuditEvent, AuditResource } from '../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../integrations/audit/audit.service';
 
 @Controller()
 export class ImportController {
@@ -33,6 +39,7 @@ export class ImportController {
     private readonly importService: ImportService,
     private readonly spaceAbility: SpaceAbilityFactory,
     private readonly environmentService: EnvironmentService,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   @UseInterceptors(FileInterceptor)
@@ -83,7 +90,34 @@ export class ImportController {
       throw new ForbiddenException();
     }
 
-    return this.importService.importPage(file, user.id, spaceId, workspace.id);
+    const createdPage = await this.importService.importPage(
+      file,
+      user.id,
+      spaceId,
+      workspace.id,
+    );
+
+    const ext = path.extname(file.filename).toLowerCase();
+    const sourceMap: Record<string, string> = {
+      '.md': 'markdown',
+      '.html': 'html',
+      '.docx': 'docx',
+    };
+
+    if (createdPage) {
+      this.auditService.log({
+        event: AuditEvent.PAGE_CREATED,
+        resourceType: AuditResource.PAGE,
+        resourceId: createdPage.id,
+        spaceId,
+        metadata: {
+          source: sourceMap[ext],
+          fileName: file.filename,
+        },
+      });
+    }
+
+    return createdPage;
   }
 
   @UseInterceptors(FileInterceptor)
@@ -142,6 +176,18 @@ export class ImportController {
       throw new ForbiddenException();
     }
 
+    this.auditService.log({
+      event: AuditEvent.PAGE_IMPORTED,
+      resourceType: AuditResource.PAGE,
+      resourceId: spaceId,
+      spaceId,
+      metadata: {
+        fileName: file.filename,
+        source,
+        spaceId,
+      },
+    });
+
     return this.importService.importZip(
       file,
       source,

apps/server/src/integrations/import/services/file-import-task.service.ts

@@ -1,4 +1,4 @@
-import { Injectable, Logger } from '@nestjs/common';
+import { Inject, Injectable, Logger } from '@nestjs/common';
 import * as path from 'path';
 import { jsonToText } from '../../../collaboration/collaboration.util';
 import { InjectKysely } from 'nestjs-kysely';
@@ -36,6 +36,11 @@ import { PageService } from '../../../core/page/services/page.service';
 import { ImportPageNode } from '../dto/file-task-dto';
 import { EventEmitter2 } from '@nestjs/event-emitter';
 import { EventName } from '../../../common/events/event.contants';
+import { AuditEvent, AuditResource } from '../../../common/events/audit-events';
+import {
+  AUDIT_SERVICE,
+  IAuditService,
+} from '../../../integrations/audit/audit.service';
 
 @Injectable()
 export class FileImportTaskService {
@@ -50,6 +55,7 @@ export class FileImportTaskService {
     private readonly importAttachmentService: ImportAttachmentService,
     private moduleRef: ModuleRef,
     private eventEmitter: EventEmitter2,
+    @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
   async processZIpImport(fileTaskId: string): Promise<void> {
@@ -402,6 +408,7 @@ export class FileImportTaskService {
     // Process pages level by level sequentially to respect foreign key constraints
     const allBacklinks: any[] = [];
     const validPageIds = new Set<string>();
+    const pageTitles = new Map<string, string>();
     let totalPagesProcessed = 0;
 
     // Sort levels to process in order
@@ -478,8 +485,9 @@ export class FileImportTaskService {
 
             await trx.insertInto('pages').values(insertablePage).execute();
 
-            // Track valid page IDs and collect backlinks
+            // Track valid page IDs, titles, and collect backlinks
             validPageIds.add(insertablePage.id);
+            pageTitles.set(insertablePage.id, insertablePage.title);
             allBacklinks.push(...backlinks);
             totalPagesProcessed++;
 
@@ -522,6 +530,26 @@ export class FileImportTaskService {
           `Successfully imported ${totalPagesProcessed} pages with ${filteredBacklinks.length} backlinks`,
         );
       });
+
+      if (validPageIds.size > 0) {
+        const auditPayloads = Array.from(validPageIds).map((pageId) => ({
+          event: AuditEvent.PAGE_CREATED,
+          resourceType: AuditResource.PAGE,
+          resourceId: pageId,
+          spaceId: fileTask.spaceId,
+          metadata: {
+            source: fileTask.source,
+            fileTaskId: fileTask.id,
+            title: pageTitles.get(pageId),
+          },
+        }));
+
+        this.auditService.logBatchWithContext(auditPayloads, {
+          workspaceId: fileTask.workspaceId,
+          actorId: fileTask.creatorId,
+          actorType: 'user',
+        });
+      }
     } catch (error) {
       this.logger.error('Failed to import files:', error);
       throw new Error(`File import failed: ${error?.['message']}`);

apps/server/src/integrations/import/services/import.service.ts

@@ -49,7 +49,7 @@ export class ImportService {
     userId: string,
     spaceId: string,
     workspaceId: string,
-  ): Promise<void> {
+  ) {
     const file = await filePromise;
     const fileBuffer = await file.toBuffer();
     const fileExtension = path.extname(file.filename).toLowerCase();

apps/server/src/integrations/queue/constants/queue.constants.ts

@@ -8,6 +8,7 @@ export enum QueueName {
   AI_QUEUE = '{ai-queue}',
   HISTORY_QUEUE = '{history-queue}',
   NOTIFICATION_QUEUE = '{notification-queue}',
+  AUDIT_QUEUE = '{audit-queue}',
 }
 
 export enum QueueJob {
@@ -68,4 +69,7 @@ export enum QueueJob {
   COMMENT_RESOLVED_NOTIFICATION = 'comment-resolved-notification',
   PAGE_MENTION_NOTIFICATION = 'page-mention-notification',
   PAGE_PERMISSION_GRANTED = 'page-permission-granted',
+
+  AUDIT_LOG = 'audit-log',
+  AUDIT_CLEANUP = 'audit-cleanup',
 }

apps/server/src/integrations/queue/queue.module.ts

@@ -84,6 +84,14 @@ import { GeneralQueueProcessor } from './processors/general-queue.processor';
     BullModule.registerQueue({
       name: QueueName.NOTIFICATION_QUEUE,
     }),
+    BullModule.registerQueue({
+      name: QueueName.AUDIT_QUEUE,
+      defaultJobOptions: {
+        removeOnComplete: true,
+        removeOnFail: true,
+        attempts: 3,
+      },
+    }),
   ],
   exports: [BullModule],
   providers: [GeneralQueueProcessor],

apps/server/src/integrations/transactional/emails/forgot-password-email.tsx

@@ -17,6 +17,9 @@ export const ForgotPasswordEmail = ({ username, resetLink }: Props) => {
           We received a request from you to reset your password.
         </Text>
           <Link href={resetLink}> Click here to set a new password</Link>
+        <Text style={paragraph}>
+          This link is valid for 30 minutes.
+        </Text>
         <Text style={paragraph}>
           If you did not request a password reset, please ignore this email.
         </Text>

apps/server/src/ws/ws.service.ts

@@ -35,7 +35,6 @@ export class WsService {
 
     const pageId = this.extractPageId(data);
     if (!pageId) {
-      client.broadcast.to(room).emit('message', data);
       return;
     }