STSPropertiesMBean stsProperties = tokenParameters.getStsProperties();
Crypto sigCrypto = stsProperties.getSignatureCrypto();
CallbackHandler callbackHandler = stsProperties.getCallbackHandler();
TokenValidatorResponse response = new TokenValidatorResponse();
ReceivedToken validateTarget = tokenParameters.getToken();
validateTarget.setState(STATE.INVALID);
response.setToken(validateTarget);
if (!validateTarget.isDOMElement()) {
return response;
}
try {
Element validateTargetElement = (Element)validateTarget.getToken();
AssertionWrapper assertion = new AssertionWrapper(validateTargetElement);
SAMLTokenPrincipal samlPrincipal = new SAMLTokenPrincipal(assertion);
response.setPrincipal(samlPrincipal);
if (!assertion.isSigned()) {
LOG.log(Level.WARNING, "The received assertion is not signed, and therefore not trusted");
return response;
}
RequestData requestData = new RequestData();
requestData.setSigCrypto(sigCrypto);
WSSConfig wssConfig = WSSConfig.getNewInstance();
requestData.setWssConfig(wssConfig);
requestData.setCallbackHandler(callbackHandler);
// Verify the signature
assertion.verifySignature(
requestData, new WSDocInfo(validateTargetElement.getOwnerDocument())
);
SecurityToken secToken = null;
byte[] signatureValue = assertion.getSignatureValue();
if (tokenParameters.getTokenStore() != null && signatureValue != null
&& signatureValue.length > 0) {
int hash = Arrays.hashCode(signatureValue);
secToken = tokenParameters.getTokenStore().getToken(Integer.toString(hash));
if (secToken != null && secToken.getTokenHash() != hash) {
secToken = null;
}
}
if (secToken != null && secToken.isExpired()) {
LOG.fine("Token: " + secToken.getId() + " is in the cache but expired - revalidating");
secToken = null;
}
if (secToken == null) {
// Validate the assertion against schemas/profiles
validateAssertion(assertion);
// Now verify trust on the signature
Credential trustCredential = new Credential();
SAMLKeyInfo samlKeyInfo = assertion.getSignatureKeyInfo();
trustCredential.setPublicKey(samlKeyInfo.getPublicKey());
trustCredential.setCertificates(samlKeyInfo.getCerts());
trustCredential = validator.validate(trustCredential, requestData);
// Finally check that subject DN of the signing certificate matches a known constraint
X509Certificate cert = null;
if (trustCredential.getCertificates() != null) {
cert = trustCredential.getCertificates()[0];
}
if (!certConstraints.matches(cert)) {
return response;
}
}
// Get the realm of the SAML token
String tokenRealm = null;
if (samlRealmCodec != null) {
tokenRealm = samlRealmCodec.getRealmFromToken(assertion);
// verify the realm against the cached token
if (secToken != null) {
Properties props = secToken.getProperties();
if (props != null) {
String cachedRealm = props.getProperty(STSConstants.TOKEN_REALM);
if (cachedRealm != null && !tokenRealm.equals(cachedRealm)) {
return response;
}
}
}
}
response.setTokenRealm(tokenRealm);
if (!validateConditions(assertion, validateTarget)) {
return response;
}
// Store the successfully validated token in the cache
if (secToken == null) {
storeTokenInCache(
tokenParameters.getTokenStore(), assertion, tokenParameters.getPrincipal(), tokenRealm
);
}
// Add the AssertionWrapper to the properties, as the claims are required to be transformed
Map<String, Object> addProps = new HashMap<String, Object>();
addProps.put(AssertionWrapper.class.getName(), assertion);
response.setAdditionalProperties(addProps);
validateTarget.setState(STATE.VALID);
} catch (WSSecurityException ex) {
LOG.log(Level.WARNING, "", ex);
}
return response;