📦 cityzenKIM / toy_project_board

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37import {
  Injectable,
  ExecutionContext,
  UnauthorizedException,
  Logger,
} from '@nestjs/common';
import { JwtService } from '@nestjs/jwt';
import { AuthGuard } from '@nestjs/passport';

@Injectable()
export class JwtAuthGuard extends AuthGuard('jwt') {
  constructor(private readonly jwtService: JwtService) {
    super();
  }
  async canActivate(context: ExecutionContext) {
    const request = context.switchToHttp().getRequest();
    const authHeader = request.headers.authorization;

    if (!authHeader) {
      throw new UnauthorizedException('Authorization 헤더가 없습니다.');
    }

    const token = authHeader.split(' ')[1];
    if (!token) {
      throw new UnauthorizedException('토큰이 존재하지 않습니다.');
    }

    try {
      const decoded = this.jwtService.verify(token);
      request.user = decoded;
      return true;
    } catch (err) {
      throw new UnauthorizedException('유효하지 않은 토큰입니다.');
    }
  }
}