fix: Mail multi-tenancy token exchange (#4831)

.changeset/ninety-lobsters-sleep.md

@@ -0,0 +1,6 @@
+---
+'@sap-cloud-sdk/connectivity': patch
+'@sap-cloud-sdk/mail-client': patch
+---
+
+[Fixed Issue] Fix token fetching for mail multi-tenancy scenarios.

packages/connectivity/src/scp-cf/connectivity-service.ts

@@ -1,4 +1,5 @@
 import { createLogger, ErrorWithCause } from '@sap-cloud-sdk/util';
+import { JwtPayload } from 'jsonwebtoken';
 import { Protocol } from './protocol';
 import {
  ProxyConfiguration,
@@ -31,7 +32,9 @@ export async function addProxyConfigurationOnPrem(
  if (destination.type === 'MAIL') {
  return {
  ...destination,
- proxyConfiguration: await socksProxyHostAndPort(subscriberToken)
+ proxyConfiguration: await socksProxyHostAndPort(
+ subscriberToken?.userJwt.decoded
+ )
  };
  }
 
@@ -67,13 +70,16 @@ export function httpProxyHostAndPort(): HostAndPort {
 
 /**
  * @internal
+ * @param userJwt - The user JWT
  * @returns Socks Proxy Configuration
  */
 export async function socksProxyHostAndPort(
- jwt?: Required<SubscriberToken>
+ userJwt?: JwtPayload
 ): Promise<ProxyConfiguration> {
  const service = readConnectivityServiceBinding();
- const connectivityServiceToken = await serviceToken(service, { jwt });
+ const connectivityServiceToken = await serviceToken(service, {
+ jwt: userJwt
+ });
  return {
  host: service.credentials.onpremise_proxy_host,
  port: parseInt(service.credentials.onpremise_socks5_proxy_port),