_, fsDir, err := prepareFS(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	defer removeRoots([]string{fsDir})

	credentialTemplate := "%s/%s/%s/s3/aws4_request"
	now := UTCNow()
	accessKey := globalActiveCred.AccessKey

	testCases := []struct {
		form     http.Header
		expected APIErrorCode
	}{
		// (0) It should fail if 'X-Amz-Credential' is missing.
		{
			form:     http.Header{},

	return nil
}

// Sign given request using Signature V2.
func signRequestV2(req *http.Request, accessKey, secretKey string) error {
	signer.SignV2(*req, accessKey, secretKey, false)
	return nil
}

// Sign given request using Signature V4.
func signRequestV4(req *http.Request, accessKey, secretKey string) error {
	// Get hashed payload.
	hashedPayload := req.Header.Get("x-amz-content-sha256")

			return BucketRemoteTargetNotFound{Bucket: tgt.TargetBucket, Err: err}
		case "AccessDenied":
			return RemoteTargetConnectionErr{Bucket: tgt.TargetBucket, AccessKey: tgt.Credentials.AccessKey, Err: err}
		}
		return RemoteTargetConnectionErr{Bucket: tgt.TargetBucket, AccessKey: tgt.Credentials.AccessKey, Err: err}
	}
	if !exists {
		return BucketRemoteTargetNotFound{Bucket: tgt.TargetBucket}
	}
	if tgt.Type == madmin.ReplicationService {

	req := mustNewRequest(method, urlStr, contentLength, body, t)
	cred := globalActiveCred
	if err := signRequestV4(req, cred.AccessKey, cred.SecretKey); err != nil {
		t.Fatalf("Unable to initialized new signed http request %s", err)
	}
	return req
}

// This is similar to mustNewRequest but additionally the request

	mcreds := credentials.NewStaticV4(
		f.permissions.CriticalOptions["AccessKey"],
		f.permissions.CriticalOptions["SecretKey"],
		f.permissions.CriticalOptions["SessionToken"],
	)
	return minio.New(f.endpoint, &minio.Options{
		Creds:     mcreds,
		Secure:    globalIsTLS,
		Transport: globalRemoteFTPClientTransport,
	})
}

func (f *sftpDriver) AccessKey() string {
	return f.permissions.CriticalOptions["AccessKey"]
}

	// mapping.
	updatedAt, err := globalIAMSys.SetTempUser(context.Background(), cred.AccessKey, cred, "")
	if err != nil {
		return nil, err
	}

	replLogIf(context.Background(), globalSiteReplicationSys.IAMChangeHook(context.Background(), madmin.SRIAMItem{
		Type: madmin.SRIAMItemSTSAcc,
		STSCredential: &madmin.SRSTSCredential{
			AccessKey:    cred.AccessKey,
			SecretKey:    cred.SecretKey,
			SessionToken: cred.SessionToken,

	"fmt"
	"io"
	"log"
	"net/url"
	"os"
	"path"
	"strconv"
	"strings"
	"time"

	"github.com/minio/minio-go/v7"
	"github.com/minio/minio-go/v7/pkg/credentials"
)

var (
	endpoint, accessKey, secretKey string
	minModTimeStr                  string
	bucket, prefix                 string
	debug                          bool
	versions                       bool
	insecure                       bool
)

                }
                final Builder builder = MinioClient.builder().endpoint(endpoint);
                if (StringUtil.isNotBlank(accessKey) && StringUtil.isNotBlank(secretKey)) {
                    builder.credentials(accessKey, secretKey);
                }
                if (StringUtil.isNotBlank(region)) {
                    builder.region(region);
                }

			if err != nil {
				return nil, err
			}

			// Call hook for site replication.
			replLogIf(context.Background(), globalSiteReplicationSys.IAMChangeHook(context.Background(), madmin.SRIAMItem{
				Type: madmin.SRIAMItemSTSAcc,
				STSCredential: &madmin.SRSTSCredential{
					AccessKey:    cred.AccessKey,
					SecretKey:    cred.SecretKey,

            throw new CrawlingAccessException("endpoint is blank.");
        }
        builder.endpoint(endpoint);
        final String accessKey = getInitParameter("accessKey", null, String.class);
        if (StringUtil.isBlank(accessKey)) {
            throw new CrawlingAccessException("accessKey is blank.");
        }
        final String secretKey = getInitParameter("secretKey", null, String.class);