s3->GCS access denied error - amazon-s3

Question

I'm trying to transfer files from s3-gcs.
I don't own the s3 bucket and was provided with keys.
I edited my boto and entered the key & access id's but my gsutil cp command returned an access denied error. I can browse/dl these files with the various free s3 browser utilities out there.
Might the owner need to adjust something on their end?
gsutil cp -r s3://origin gs://destination
Copying s3://origin
17/_SUCCESS [Content-Type=binary/octet-stream]...
Exception in thread Thread-2: B]
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
self.run()
File "/usr/lib/python2.7/threading.py", line 754, in run
self.__target(*self.__args, **self.__kwargs)
File "/usr/lib/google-cloud-
sdk/platform/gsutil/gslib/daisy_chain_wrapper.py", line 196, in
PerformDownload
decryption_tuple=self.decryption_tuple)
File "/usr/lib/google-cloud-
sdk/platform/gsutil/gslib/cloud_api_delegator.py", line 276, in
GetObjectMedia
decryption_tuple=decryption_tuple)
File "/usr/lib/google-cloud-sdk/platform/gsutil/gslib/boto_translation.py",
line 513, in GetObjectMedia
generation=generation)
File "/usr/lib/google-cloud-sdk/platform/gsutil/gslib/boto_translation.py",
line 1476, in _TranslateExceptionAndRaise
raise translated_exception
AccessDeniedException: AccessDeniedException: 403 AccessDenied
<?xml version="1.0" encoding="UTF-8"?>
<Error><Code>AccessDenied</Code><Message>Access Denied</Message>
<RequestId>DD4EA91291B40907</RequestId>

Answer 1

In your SSH session, check what account is activated on the instance.
$ gcloud auth list
Then try using the -D or -DD command line options to debug why your example is failing. And you can try running gsutil with the top-level -D flag.
1) To copy from S3 to local disk
gsutil -D cp -r s3://secret-bucket/some_key/ /local/directory/my-s3-files/
2) To copy from local disk to GCS bucket
gsutil -D cp -r /local/directory/my-s3-files/ gs://secret-elsewhere/destination/
You can check Storage Transfer Service article to how transfer data into Cloud Storage.
We have to make sure permission error is in GCP or S3. Also, you can have a look at these articles for more information:
https://github.com/GoogleCloudPlatform/gsutil/issues/487
https://cloud.google.com/storage/docs/gsutil/commands/cp