"bytes"
	"crypto/md5"
	"encoding/base64"
	"net/http"

	xhttp "github.com/minio/minio/internal/http"
)

// RemoveSensitiveHeaders removes confidential encryption
// information - e.g. the SSE-C key - from the HTTP headers.
// It has the same semantics as RemoveSensitiveEntries.
func RemoveSensitiveHeaders(h http.Header) {
	h.Del(xhttp.AmzServerSideEncryptionCustomerKey)
	h.Del(xhttp.AmzServerSideEncryptionCopyCustomerKey)

		return true
	}
	return false
}

// RemoveSensitiveEntries removes confidential encryption
// information - e.g. the SSE-C key - from the metadata map.
// It has the same semantics as RemoveSensitiveHeaders.
func RemoveSensitiveEntries(metadata map[string]string) { // The functions is tested in TestRemoveSensitiveHeaders for compatibility reasons
	delete(metadata, xhttp.AmzServerSideEncryptionCustomerKey)

	if region := globalSite.Region; region != "" {
		w.Header().Set(xhttp.AmzBucketRegion, region)
	}
	w.Header().Set(xhttp.AcceptRanges, "bytes")

	// Remove sensitive information
	crypto.RemoveSensitiveHeaders(w.Header())
}

// Encodes the response headers into XML format.
func encodeResponse(response interface{}) []byte {
	var buf bytes.Buffer
	buf.WriteString(xml.Header)

		metadata := make(map[string]string, len(test.Header))
		for k := range test.Header {
			metadata[k] = "" // set metadata key - we don't care about the value
		}

		RemoveSensitiveHeaders(test.Header)
		if !isEqual(test.ExpectedHeader, test.Header) {
			t.Errorf("Test %d: filtered headers do not match expected headers - got: %v , want: %v", i, test.Header, test.ExpectedHeader)
		}