}

        byte[] actualHash = context.getCurrentHash();
        boolean isValid = MessageDigest.isEqual(actualHash, expectedHash);

        if (isValid) {
            log.debug("Preauth integrity validation passed for session {}", sessionId);
        } else {
            log.error("Preauth integrity validation FAILED for session {}", sessionId);
            context.invalidate();
            if (enforceIntegrity) {

			// S3 uses B-encoding (Base64) for non-ASCII-heavy metadata and Q-encoding
			// (quoted-printable) for mostly ASCII strings. Long strings are split at word
			// boundaries to fit RFC 2047’s 75-character limit, ensuring HTTP parser
			// compatibility.
			//
			// However, this splitting increases header size and can introduce errors, unlike Go’s
			// mime package in MinIO, which correctly encodes strings with fixed B/Q encodings,

  #   Needed for removing poorly interpreted newline sequences when running in more
  #   exotic environments such as mingw bash on Windows.
  printf "%s" "${1}" | tr -d '[:space:]'
}

# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
while IFS="=" read -r key value; do
  case "${key-}" in
  distributionUrl) distributionUrl=$(trim "${value-}") ;;

            }
            if (Constants.SAMBA.equals(fileAuth.getProtocolScheme())) {
                final SmbAuthentication smbAuth = new SmbAuthentication();
                final Map<String, String> map = ParameterUtil.parse(fileAuth.getParameters());
                final String domain = map.get("domain");
                smbAuth.setDomain(domain == null ? StringUtil.EMPTY : domain);
                smbAuth.setServer(fileAuth.getHostname());

			principalType = "AssumedRole"
		}
		if username == globalActiveCred.AccessKey {
			principalType = "Account"
		}
	}

	vid := r.Form.Get(xhttp.VersionID)
	if vid == "" {
		if u, err := url.Parse(r.Header.Get(xhttp.AmzCopySource)); err == nil {
			vid = u.Query().Get(xhttp.VersionID)
		}
	}

	authType := getRequestAuthType(r)
	var signatureVersion string
	switch authType {

)

// Tests request guess function for net/rpc requests.
func TestGuessIsRPC(t *testing.T) {
	if guessIsRPCReq(nil) {
		t.Fatal("Unexpected return for nil request")
	}

	u, err := url.Parse("http://localhost:9000/minio/lock")
	if err != nil {
		t.Fatal(err)
	}

	r := &http.Request{
		Proto:  "HTTP/1.0",
		Method: http.MethodPost,
		URL:    u,
	}
	if !guessIsRPCReq(r) {

	// Check all API endpoints for standard ports and strip them.
	for i, apiEndpoint := range apiEndpoints {
		_, err := xnet.ParseHTTPURL(apiEndpoint)
		if err != nil {
			continue
		}
		u, err := url.Parse(apiEndpoint)
		if err != nil {
			continue
		}
		if host == "" && isIPv6(u.Hostname()) {
			// Skip all IPv6 endpoints
			continue
		}

// behavior modification via flags.
//
// This middleware always calls `collectAPIStats` to collect API stats.
//
// The passed in handler function must be a method of `objectAPIHandlers` for
// the name displayed in logs and trace to be accurate. The name is extracted
// via reflection.
//
// When **no** flags are passed, the behavior is to trace both headers and body,
// gzip the response and throttle the handler via `maxClients`. Each of these

// GetObjectReader and an error. Request headers are passed to provide
// encryption parameters. cleanupFns allow cleanup funcs to be
// registered for calling after usage of the reader.
type ObjReaderFn func(inputReader io.Reader, h http.Header, cleanupFns ...func()) (r *GetObjectReader, err error)

// NewGetObjectReader creates a new GetObjectReader. The cleanUpFns
// are called on Close() in FIFO order as passed in ObjReadFn(). NOTE: It is

 *     class (such as {@link #named}) return this type, so that Builder methods of more derived
 *     classes can be chained onto them without casting.
 * @param <G> The type of the generator to be passed to testers in the generated test suite. An
 *     instance of G should somehow provide an instance of the class under test, plus any other
 *     information required to parameterize the test.
 * @author George van den Driessche
 */