return;
            }
            params.put("onelogin.saml2." + key.substring(SAML_PREFIX.length()), e.getValue());
        });
        return new SettingsBuilder().fromValues(params).build();
    }

    @Override
    public LoginCredential getLoginCredential() {
        return LaRequestUtil.getOptionalRequest().map(request -> {
            if (logger.isDebugEnabled()) {

}

// Check to see if Policy is signed correctly.
func doesPolicySignatureMatch(formValues http.Header) (auth.Credentials, APIErrorCode) {
	// For SignV2 - Signature field will be valid
	if _, ok := formValues[xhttp.AmzSignatureV2]; ok {
		return doesPolicySignatureV2Match(formValues)
	}
	return doesPolicySignatureV4Match(formValues)
}

// compareSignatureV4 returns true if and only if both signatures

		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"))

	for i, tt := range testCases {
		formValues := make(http.Header)
		formValues.Set("Bucket", tt.Bucket)
		formValues.Set("Key", tt.Key)
		formValues.Set("Content-Type", tt.ContentType)
		formValues.Set("X-Amz-Date", tt.XAmzDate)
		formValues.Set("X-Amz-Meta-Uuid", tt.XAmzMetaUUID)
		formValues.Set("X-Amz-Algorithm", tt.XAmzAlgorithm)
		formValues.Set("X-Amz-Credential", tt.XAmzCredential)
		if tt.Expired {

func checkPostPolicy(formValues http.Header, postPolicyForm PostPolicyForm) error {
	// Check if policy document expiry date is still not reached
	if !postPolicyForm.Expiration.After(UTCNow()) {
		return fmt.Errorf("Invalid according to Policy: Policy expired")
	}
	// check all formValues appear in postPolicyForm or return error. #https://github.com/minio/minio/issues/17391

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)

	}
	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 {