feat: add cmpp inbound gateway listener

api/src/sms-config/sms-config.service.ts

@@ -1,6 +1,6 @@
 import { BadRequestException, Injectable, NotFoundException } from '@nestjs/common';
 import { Prisma } from '@prisma/client';
-import { randomBytes, createHash } from 'node:crypto';
+import { randomBytes, randomInt, createHash } from 'node:crypto';
 import { PrismaService } from '../prisma/prisma.service';
 
 export interface CreateSmsApplicationDto {
@@ -150,15 +150,17 @@ export class SmsConfigService {
     return application;
   }
 
-  createApplication(data: CreateSmsApplicationDto) {
+  async createApplication(data: CreateSmsApplicationDto) {
     const secret = randomBytes(24).toString('hex');
     const queuePriority = normalizeApplicationQueuePriority(data.queuePriority);
+    const cmppAccount = await this.generateCmppAccount();
     return this.prisma.smsApplication.create({
       data: {
         tenantId: data.tenantId,
         name: data.name,
         scene: data.scene,
         callbackUrl: data.callbackUrl,
+        cmppAccount,
         secretHash: hashSecret(secret),
         dailyLimit: data.dailyLimit,
         customerUnitPrice: data.customerUnitPrice ?? 0,
@@ -345,8 +347,8 @@ export class SmsConfigService {
       gatewayHost: channel?.gatewayHost ?? '',
       gatewayPort: channel?.gatewayPort ?? 0,
       enterpriseCode: channel?.enterpriseCode ?? application.tenant.code,
-      account: channel?.account ?? application.tenant.code,
-      passwordCipher: channel?.passwordCipher ?? application.secretHash,
+      account: application.cmppAccount,
+      passwordCipher: application.secretHash,
       srcId: channel?.srcId ?? '',
       maxConnections: channel?.config && typeof channel.config === 'object' && 'maxConnections' in channel.config ? Number(channel.config.maxConnections) : 1,
       heartbeatSeconds: 30,
@@ -355,6 +357,17 @@ export class SmsConfigService {
     };
   }
 
+  private async generateCmppAccount() {
+    for (let attempt = 0; attempt < 20; attempt += 1) {
+      const cmppAccount = String(randomInt(100000, 1000000));
+      const exists = await this.prisma.smsApplication.findUnique({ where: { cmppAccount } });
+      if (!exists) {
+        return cmppAccount;
+      }
+    }
+    throw new BadRequestException('Unable to generate unique CMPP account');
+  }
+
   async disconnectApplicationConnection(applicationId: string, connectionId: string, data: StatusChangeDto = { status: 'disconnected' }) {
     const application = await this.prisma.smsApplication.findUnique({ where: { id: applicationId } });
     if (!application) {