feat: user session management (#2056)

* user session management

* WIP

* cleanup

* license

* cleanup

* don't cache index

* rename current device property

* fix

apps/server/src/core/session/dto/revoke-session.dto.ts

@@ -0,0 +1,7 @@
+import { IsNotEmpty, IsUUID } from 'class-validator';
+
+export class RevokeSessionDto {
+  @IsUUID()
+  @IsNotEmpty()
+  sessionId: string;
+}

apps/server/src/core/session/session-activity.service.ts

@@ -0,0 +1,36 @@
+import { Injectable } from '@nestjs/common';
+import { RedisService } from '@nestjs-labs/nestjs-ioredis';
+import type { Redis } from 'ioredis';
+import { UserSessionRepo } from '@docmost/db/repos/session/user-session.repo';
+import { UserRepo } from '@docmost/db/repos/user/user.repo';
+
+const THROTTLE_SECONDS = 15 * 60; // 15 minutes
+
+@Injectable()
+export class SessionActivityService {
+  private readonly redis: Redis;
+
+  constructor(
+    private readonly redisService: RedisService,
+    private readonly userSessionRepo: UserSessionRepo,
+    private readonly userRepo: UserRepo,
+  ) {
+    this.redis = this.redisService.getOrThrow();
+  }
+
+  trackActivity(sessionId: string, userId: string, workspaceId: string): void {
+    const key = `session:activity:${sessionId}`;
+
+    this.redis
+      .set(key, '1', 'EX', THROTTLE_SECONDS, 'NX')
+      .then((result) => {
+        if (result === null) return; // key already exists, throttled
+
+        this.userSessionRepo.updateLastActiveAt(sessionId).catch(() => {});
+        this.userRepo
+          .updateUser({ lastActiveAt: new Date() }, userId, workspaceId)
+          .catch(() => {});
+      })
+      .catch(() => {});
+  }
+}

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

@@ -0,0 +1,80 @@
+import {
+  BadRequestException,
+  Body,
+  Controller,
+  HttpCode,
+  HttpStatus,
+  Post,
+  Req,
+  UseGuards,
+} from '@nestjs/common';
+import { SessionService } from './session.service';
+import { JwtAuthGuard } from '../../common/guards/jwt-auth.guard';
+import { AuthUser } from '../../common/decorators/auth-user.decorator';
+import { AuthWorkspace } from '../../common/decorators/auth-workspace.decorator';
+import { User, Workspace } from '@docmost/db/types/entity.types';
+import { RevokeSessionDto } from './dto/revoke-session.dto';
+import { FastifyRequest } from 'fastify';
+
+@UseGuards(JwtAuthGuard)
+@Controller('sessions')
+export class SessionController {
+  constructor(private readonly sessionService: SessionService) {}
+
+  @HttpCode(HttpStatus.OK)
+  @Post()
+  async listSessions(
+    @AuthUser() user: User,
+    @AuthWorkspace() workspace: Workspace,
+    @Req() req: FastifyRequest,
+  ) {
+    const currentSessionId = (req.raw as any).sessionId ?? null;
+    const sessions = await this.sessionService.getActiveSessions(
+      user.id,
+      workspace.id,
+      currentSessionId,
+    );
+    return { sessions };
+  }
+
+  @HttpCode(HttpStatus.OK)
+  @Post('revoke')
+  async revokeSession(
+    @Body() dto: RevokeSessionDto,
+    @AuthUser() user: User,
+    @AuthWorkspace() workspace: Workspace,
+    @Req() req: FastifyRequest,
+  ) {
+    const currentSessionId = (req.raw as any).sessionId;
+    if (dto.sessionId === currentSessionId) {
+      throw new BadRequestException(
+        'Cannot revoke current session. Use logout instead.',
+      );
+    }
+    await this.sessionService.revokeSession(
+      dto.sessionId,
+      user.id,
+      workspace.id,
+    );
+  }
+
+  @HttpCode(HttpStatus.OK)
+  @Post('revoke-all')
+  async revokeAllSessions(
+    @AuthUser() user: User,
+    @AuthWorkspace() workspace: Workspace,
+    @Req() req: FastifyRequest,
+  ) {
+    const currentSessionId = (req.raw as any).sessionId;
+    if (!currentSessionId) {
+      throw new BadRequestException(
+        'Current session not found. Please log in again.',
+      );
+    }
+    await this.sessionService.revokeAllOtherSessions(
+      currentSessionId,
+      user.id,
+      workspace.id,
+    );
+  }
+}

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

@@ -0,0 +1,14 @@
+import { Global, Module } from '@nestjs/common';
+import { SessionService } from './session.service';
+import { SessionActivityService } from './session-activity.service';
+import { SessionController } from './session.controller';
+import { TokenModule } from '../auth/token.module';
+
+@Global()
+@Module({
+  imports: [TokenModule],
+  controllers: [SessionController],
+  providers: [SessionService, SessionActivityService],
+  exports: [SessionService, SessionActivityService],
+})
+export class SessionModule {}

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

@@ -0,0 +1,127 @@
+import { Injectable, Logger } from '@nestjs/common';
+import { Interval } from '@nestjs/schedule';
+import { TokenService } from '../auth/services/token.service';
+import { UserSessionRepo } from '@docmost/db/repos/session/user-session.repo';
+import { EnvironmentService } from '../../integrations/environment/environment.service';
+import { User } from '@docmost/db/types/entity.types';
+import { ClsService } from 'nestjs-cls';
+import {
+  AuditContext,
+  AUDIT_CONTEXT_KEY,
+} from '../../common/middlewares/audit-context.middleware';
+import * as Bowser from 'bowser';
+
+const MAX_SESSIONS_PER_USER = 25;
+const RETENTION_DAYS = 7;
+
+@Injectable()
+export class SessionService {
+  private readonly logger = new Logger(SessionService.name);
+
+  constructor(
+    private readonly tokenService: TokenService,
+    private readonly userSessionRepo: UserSessionRepo,
+    private readonly environmentService: EnvironmentService,
+    private readonly cls: ClsService,
+  ) {}
+
+  @Interval('session-cleanup', 24 * 60 * 60 * 1000)
+  async cleanupSessions() {
+    try {
+      await this.userSessionRepo.deleteStale(RETENTION_DAYS);
+      await this.userSessionRepo.trimExcessSessions(MAX_SESSIONS_PER_USER);
+      this.logger.debug('Session cleanup completed');
+    } catch (err) {
+      this.logger.error('Session cleanup failed', err);
+    }
+  }
+
+  async createSessionAndToken(user: User): Promise<string> {
+    const auditContext = this.cls.get<AuditContext>(AUDIT_CONTEXT_KEY);
+    const ipAddress = auditContext?.ipAddress ?? null;
+    const userAgent = auditContext?.userAgent ?? null;
+
+    const deviceName = this.parseDeviceName(userAgent);
+    const expiresAt = this.environmentService.getCookieExpiresIn();
+
+    const session = await this.userSessionRepo.insertSession({
+      userId: user.id,
+      workspaceId: user.workspaceId,
+      deviceName,
+      ipAddress,
+      expiresAt,
+    });
+
+    return this.tokenService.generateAccessToken(user, session.id);
+  }
+
+  async getActiveSessions(
+    userId: string,
+    workspaceId: string,
+    currentSessionId: string | null,
+  ) {
+    const sessions = await this.userSessionRepo.findActiveByUser(
+      userId,
+      workspaceId,
+    );
+
+    const mapped = sessions.map((s) => ({
+      id: s.id,
+      deviceName: s.deviceName,
+      geoLocation: s.geoLocation,
+      lastActiveAt: s.lastActiveAt,
+      createdAt: s.createdAt,
+      isCurrentDevice: s.id === currentSessionId,
+    }));
+
+    return mapped.sort((a, b) => {
+      if (a.isCurrentDevice) return -1;
+      if (b.isCurrentDevice) return 1;
+      return 0;
+    });
+  }
+
+  async revokeSession(
+    sessionId: string,
+    userId: string,
+    workspaceId: string,
+  ): Promise<void> {
+    await this.userSessionRepo.revokeById(sessionId, userId, workspaceId);
+  }
+
+  async revokeAllOtherSessions(
+    currentSessionId: string,
+    userId: string,
+    workspaceId: string,
+  ): Promise<void> {
+    await this.userSessionRepo.revokeAllExceptCurrent(
+      currentSessionId,
+      userId,
+      workspaceId,
+    );
+  }
+
+  private parseDeviceName(userAgent: string | null): string | null {
+    if (!userAgent) return null;
+
+    try {
+      const parsed = Bowser.parse(userAgent);
+
+      const os = parsed.os?.name;
+      const browser = parsed.browser?.name;
+      const platformType = parsed.platform?.type;
+
+      if (platformType === 'mobile' || platformType === 'tablet') {
+        return parsed.platform?.model || os || 'Mobile Device';
+      }
+
+      if (os) {
+        return browser ? `${browser} on ${os}` : os;
+      }
+
+      return browser || null;
+    } catch {
+      return null;
+    }
+  }
+}