writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

	// Read escaped copy source path to check for parameters.
	cpSrcPath := r.Header.Get(xhttp.AmzCopySource)
	var vid string
	if u, err := url.Parse(cpSrcPath); err == nil {
		vid = strings.TrimSpace(u.Query().Get(xhttp.VersionID))
		// Note that url.Parse does the unescaping

		code:       "InvalidRequestParameter",
		message:    "The value of a parameter in SelectRequest element is invalid. Check the service API documentation and try again.",
		statusCode: 400,
		cause:      err,
	}
}

func errInvalidScanRangeParameter(err error) *s3Error {
	return &s3Error{
		code:       "InvalidRequestParameter",

type ListMultipartsInfo struct {
	// Together with upload-id-marker, this parameter specifies the multipart upload
	// after which listing should begin.
	KeyMarker string

	// Together with key-marker, specifies the multipart upload after which listing
	// should begin. If key-marker is not specified, the upload-id-marker parameter
	// is ignored.
	UploadIDMarker string

}

// ServeHTTP - implements http.Handler interface.
//
// When the `list` query parameter is provided (its value is ignored), the
// server lists all metrics that could be returned for the requested path.
//
// The (repeatable) `buckets` query parameter is a list of bucket names (or it
// could be a comma separated value) to return metrics with a bucket label.

// decreasing precedence:
//
// 1. the value of the corresponding environment variable if set,
// 2. the value of the parameter in the config store if set,
// 3. the default value,
//
// This function only works for a subset of sub-systems, others return
// `ValueSourceAbsent`. FIXME: some parameters have custom environment
// variables for which support needs to be added.
//

				return HandlerForRetrieveDebugList(kubeClient, *centralOpts, writer, istioNamespace)

			case strings.Contains(eString, "querystring parameter 'resource' is required"):
				return nil, fmt.Errorf("querystring parameter 'resource' is required, e.g. [%s]",
					"config_distribution?resource=VirtualService/default/bookinfo")
			}
		}
	}
	return nil, nil
}

// Signature Version '4' authorization header.
//
// This package provides comprehensive helpers for following signature
// types.
// - Based on Authorization header.
// - Based on Query parameters.
// - Based on Form POST policy.
package cmd

import (
	"bytes"
	"crypto/subtle"
	"encoding/hex"
	"net/http"
	"net/url"
	"sort"
	"strconv"
	"strings"
	"time"

}

func validatePortListWithWildcard(ports string) error {
	if ports != "*" {
		return validatePortList(ports)
	}
	return nil
}

// validateCIDRListWithWildcard validates the includeIPRanges parameter
func validateCIDRListWithWildcard(ipRanges string) error {
	if ipRanges != "*" {
		if e := validateCIDRList(ipRanges); e != nil {
			return fmt.Errorf("IPRanges invalid: %v", e)
		}
	}
	return nil
}

	_, errCode = extractSignedHeaders(signedHeaders, r)
	if errCode != ErrUnsignedHeaders {
		t.Fatalf("Expected the APIErrorCode to %d, but got %d", ErrUnsignedHeaders, errCode)
	}
	// set headers value through Get parameter
	inputQuery.Add("x-amz-server-side-encryption", xhttp.AmzEncryptionAES)
	r.URL.RawQuery = inputQuery.Encode()
	r.ParseForm()
	_, errCode = extractSignedHeaders(signedHeaders, r)
	if errCode != ErrNone {

calls the C xxx in a standard pthread.  The new function translates
its arguments, calls xxx, and translates the return value.

Translation of parameters and the return value follows the type
translation above except that arrays passed as parameters translate
explicitly in Go to pointers to arrays, as they do (implicitly) in C.

Garbage collection is the big problem.  It is fine for the Go world to