}

func (cred Credentials) String() string {
	var s strings.Builder
	s.WriteString(cred.AccessKey)
	s.WriteString(":")
	s.WriteString(cred.SecretKey)
	if cred.SessionToken != "" {
		s.WriteString("\n")
		s.WriteString(cred.SessionToken)
	}
	if !cred.Expiration.IsZero() && !cred.Expiration.Equal(timeSentinel) {
		s.WriteString("\n")
		s.WriteString(cred.Expiration.String())
	}

    NodeConnection(N node) {
      this.node = checkNotNull(node);
    }

    static final class Pred<N> extends NodeConnection<N> {
      Pred(N node) {
        super(node);
      }

      @Override
      public boolean equals(@CheckForNull Object that) {
        if (that instanceof Pred) {
          return this.node.equals(((Pred<?>) that).node);
        } else {
          return false;
        }
      }

	// Find the user for the request sender (as it may be sent via a service
	// account or STS account):
	requestorUser := cred.AccessKey
	requestorParentUser := cred.AccessKey
	requestorGroups := cred.Groups
	requestorIsDerivedCredential := false
	if cred.IsServiceAccount() || cred.IsTemp() {
		requestorParentUser = cred.ParentUser
		requestorIsDerivedCredential = true
	}

	// Check if we are creating svc account for request sender.

		STSCredential: &madmin.SRSTSCredential{
			AccessKey:    cred.AccessKey,
			SecretKey:    cred.SecretKey,
			SessionToken: cred.SessionToken,
			ParentUser:   cred.ParentUser,
		},
		UpdatedAt: updatedAt,
	}))

	ldapIdentityResponse := &AssumeRoleWithLDAPResponse{
		Result: LDAPIdentityResult{
			Credentials: cred,
		},
	}

				Type: madmin.SRIAMItemSTSAcc,
				STSCredential: &madmin.SRSTSCredential{
					AccessKey:    cred.AccessKey,
					SecretKey:    cred.SecretKey,
					SessionToken: cred.SessionToken,
					ParentUser:   cred.ParentUser,
				},
				UpdatedAt: updatedAt,
			}))

			mcreds = credentials.NewStaticV4(cred.AccessKey, cred.SecretKey, cred.SessionToken)
		} else {

		duration = time.Hour
	}

	clnt, err := miniogo.New(host, &miniogo.Options{
		Creds:     credentials.NewStaticV4(cred.AccessKey, cred.SecretKey, cred.SessionToken),
		Secure:    secure,
		Transport: globalRemoteTargetTransport,
		Region:    globalSite.Region,
	})
	if err != nil {
		return levent.Event{}, err
	}

	reqParams := url.Values{}
	if partNumberStr := r.Form.Get("partNumber"); partNumberStr != "" {

	if s3Err != ErrNone {
		return auth.Credentials{}, s3Err
	}

	r := &http.Request{Header: formValues}
	cred, _, s3Err := checkKeyValid(r, credHeader.accessKey)
	if s3Err != ErrNone {
		return cred, s3Err
	}

	// Get signing key.
	signingKey := getSigningKey(cred.SecretKey, credHeader.scope.date, credHeader.scope.region, serviceS3)

	// Get signature.

				Type: madmin.SRIAMItemSTSAcc,
				STSCredential: &madmin.SRSTSCredential{
					AccessKey:    cred.AccessKey,
					SecretKey:    cred.SecretKey,
					SessionToken: cred.SessionToken,
					ParentUser:   cred.ParentUser,
				},
				UpdatedAt: updatedAt,
			}))

			mcreds = credentials.NewStaticV4(cred.AccessKey, cred.SecretKey, cred.SessionToken)
		} else {

	r := &http.Request{Header: formValues}
	cred, _, s3Err := checkKeyValid(r, accessKey)
	if s3Err != ErrNone {
		return cred, s3Err
	}
	policy := formValues.Get("Policy")
	signature := formValues.Get(xhttp.AmzSignatureV2)
	if !compareSignatureV2(signature, calculateSignatureV2(policy, cred.SecretKey)) {
		return cred, ErrSignatureDoesNotMatch
	}
	return cred, ErrNone
}

func mustNewSignedRequest(method string, urlStr string, contentLength int64, body io.ReadSeeker, t *testing.T) *http.Request {
	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