feat: 优化项目目录结构

apps/backend/src/auth/strategies/jwt.strategy.ts

@@ -0,0 +1,47 @@
+import {
+  BadRequestException,
+  Injectable,
+  UnauthorizedException,
+} from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { PassportStrategy } from '@nestjs/passport';
+import { ExtractJwt, Strategy } from 'passport-jwt';
+import { UserSessionService } from 'src/user/services/user-session.service';
+import { UserService } from 'src/user/user.service';
+
+@Injectable()
+export class JwtStrategy extends PassportStrategy(Strategy, 'jwt') {
+  constructor(
+    private readonly userService: UserService,
+    private readonly userSessionService: UserSessionService,
+    private readonly configService: ConfigService,
+  ) {
+    super({
+      jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
+      ignoreExpiration: false,
+      secretOrKey: configService.get<string>('JWT_SECRET', 'tone-page'),
+    });
+  }
+
+  async validate(payload: any) {
+    const { userId, sessionId } = payload ?? {};
+
+    const isValidSession = await this.userSessionService.isSessionValid(
+      userId,
+      sessionId,
+    );
+    if (!isValidSession) {
+      throw new UnauthorizedException('登录凭证已过期，请重新登录');
+    }
+
+    const user = await this.userService.findById(userId);
+    if (!user) {
+      throw new BadRequestException('用户不存在');
+    }
+
+    return {
+      ...user,
+      sessionId,
+    };
+  }
+}