return
	}

	formValues.Set("Bucket", bucket)
	if fileName != "" && strings.Contains(formValues.Get("Key"), "${filename}") {
		// S3 feature to replace ${filename} found in Key form field
		// by the filename attribute passed in multipart
		formValues.Set("Key", strings.ReplaceAll(formValues.Get("Key"), "${filename}", fileName))
	}
	object := trimLeadingSlash(formValues.Get("Key"))

			}
		})
	}
}

type formValues struct {
	http.Header
}

func newFormValues() formValues {
	return formValues{make(http.Header)}
}

func (f formValues) Set(key, value string) formValues {
	f.Header.Set(key, value)
	return f
}

func (f formValues) Add(key, value string) formValues {
	f.Header.Add(key, value)
	return f
}

func (f formValues) Clone() formValues {

func doesPolicySignatureV2Match(formValues http.Header) (auth.Credentials, APIErrorCode) {
	accessKey := formValues.Get(xhttp.AmzAccessKeyID)

	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)

// checkPostPolicy - apply policy conditions and validate input values.
// Note that content-length-range is checked in the API handler function PostPolicyBucketHandler.
// formValues is the already-canonicalized form values from the POST request.
func checkPostPolicy(formValues http.Header, postPolicyForm PostPolicyForm) error {
	// Check if policy document expiry date is still not reached
	if !postPolicyForm.Expiration.After(UTCNow()) {

	}
	for i, test := range testCases {
		formValues := make(http.Header)
		formValues.Set("Awsaccesskeyid", test.accessKey)
		formValues.Set("Signature", test.signature)
		formValues.Set("Policy", test.policy)
		_, errCode := doesPolicySignatureV2Match(formValues)
		if errCode != test.errCode {