fix: prevent danakcorp.com domain to register

src/modules/domains/services/dns.service.ts

@@ -21,7 +21,7 @@ export class DnsService {
 
   private readonly mailServerDomain: string = "mail.danakcorp.com";
   private readonly serverDomain: string = "danakcorp.com";
-  private readonly spfRecord: string = `v=spf1 mx include:${this.serverDomain} ~all`;
+  private readonly spfRecord: string = `v=spf1 a mx include:${this.serverDomain} ~all`;
   // private readonly dmarcRecord: string = `v=DMARC1; p=quarantine; rua=mailto:dmarc@${this.serverDomain}; ruf=mailto:dmarc@${this.serverDomain}`;
 
   private readonly resolveTxt = promisify(dns.resolveTxt);

src/modules/domains/services/domains.service.ts

@@ -18,6 +18,7 @@ import { DomainRepository } from "../repositories/domain.repository";
 @Injectable()
 export class DomainsService {
   private readonly logger = new Logger(DomainsService.name);
+  private readonly businessDomain = "danakcorp.com";
 
   constructor(
     private readonly domainRepository: DomainRepository,
@@ -33,6 +34,9 @@ export class DomainsService {
   async createDomain(createDomainDto: CreateDomainDto, businessId: string) {
     const { name, notes } = createDomainDto;
 
+    // security check
+    if (name.toLowerCase() === this.businessDomain) throw new BadRequestException(DomainMessage.CAN_NOT_USE_THIS_DOMAIN);
+
     const existBusinessDomain = await this.domainRepository.findOne({ business: { id: businessId }, deletedAt: null });
     if (existBusinessDomain) throw new BadRequestException(DomainMessage.BUSINESS_ALREADY_HAS_DOMAIN);