fix(storage): Add support for dualside encryption even if acceleratio…

…n is off (#3220)

* Add support for dualside encryption even if acceleration is off

* Use correct hostname (include region)

---------

Co-authored-by: Thomas Leing <leint@amazon.com>
Co-authored-by: gpanshu <91897496+gpanshu@users.noreply.github.com>

aws-android-sdk-s3/src/main/java/com/amazonaws/services/s3/AmazonS3Client.java

@@ -4764,6 +4764,12 @@ protected <X extends AmazonWebServiceRequest> Request<X> createRequest(String bu
                         clientConfiguration);
             }
         }
+        else {
+            if (clientOptions.isDualstackEnabled()) {
+                String hostname = String.format(Constants.S3_DUALSTACK_HOSTNAME, getRegionName());
+                endpoint = RuntimeHttpUtils.toUri(hostname, clientConfiguration);
+            }
+        }
 
         request.setHttpMethod(httpMethod);
         resolveRequestEndpoint(request, bucketName, key, endpoint);

aws-android-sdk-s3/src/main/java/com/amazonaws/services/s3/internal/Constants.java

@@ -36,6 +36,8 @@ public class Constants {
     public static final String S3_EXTERNAL_1_HOSTNAME = "s3-external-1.amazonaws.com";
     /** Service hostname for accessing accelerated S3 buckets */
     public static final String S3_ACCELERATE_HOSTNAME = "s3-accelerate.amazonaws.com";
+    /** Service hostname for accessing dualstack S3 buckets; format argument is the region */
+    public static final String S3_DUALSTACK_HOSTNAME = "s3.dualstack.%s.amazonaws.com";
     /** Service hostname for accessing dualstack accelerated S3 buckets */
     public static final String S3_ACCELERATE_DUALSTACK_HOSTNAME = "s3-accelerate.dualstack.amazonaws.com";