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/*
* Licensed to the University Corporation for Advanced Internet Development,
* Inc. (UCAID) under one or more contributor license agreements. See the
* NOTICE file distributed with this work for additional information regarding
* copyright ownership. The UCAID licenses this file to You under the Apache
* License, Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.opensaml.saml.saml2.profile.impl;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import net.shibboleth.utilities.java.support.collection.Pair;
import org.opensaml.profile.action.ActionSupport;
import org.opensaml.profile.context.ProfileRequestContext;
import org.opensaml.saml.common.SAMLObject;
import org.opensaml.saml.common.profile.SAMLEventIds;
import org.opensaml.saml.ext.saml2delrestrict.Delegate;
import org.opensaml.saml.ext.saml2delrestrict.DelegationRestrictionType;
import org.opensaml.saml.saml2.core.Assertion;
import org.opensaml.saml.saml2.core.AuthnRequest;
import org.opensaml.saml.saml2.core.Condition;
import org.opensaml.saml.saml2.core.EncryptedElementType;
import org.opensaml.saml.saml2.core.EncryptedID;
import org.opensaml.saml.saml2.core.LogoutRequest;
import org.opensaml.saml.saml2.core.ManageNameIDRequest;
import org.opensaml.saml.saml2.core.NameID;
import org.opensaml.saml.saml2.core.NameIDMappingRequest;
import org.opensaml.saml.saml2.core.NameIDMappingResponse;
import org.opensaml.saml.saml2.core.NewEncryptedID;
import org.opensaml.saml.saml2.core.NewID;
import org.opensaml.saml.saml2.core.Response;
import org.opensaml.saml.saml2.core.Subject;
import org.opensaml.saml.saml2.core.SubjectConfirmation;
import org.opensaml.saml.saml2.core.SubjectQuery;
import org.opensaml.xmlsec.encryption.support.DecryptionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Action to decrypt an {@link EncryptedID} element and replace it with the decrypted {@link NameID}
* in situ.
*
* All of the built-in SAML message types that may include an {@link EncryptedID} are potentially
* handled, but the actual message to handle is obtained via strategy function, by default the inbound
* message.
*
* @event {@link org.opensaml.profile.action.EventIds#PROCEED_EVENT_ID}
* @event {@link SAMLEventIds#DECRYPT_NAMEID_FAILED}
*/
public class DecryptNameIDs extends AbstractDecryptAction {
/** Class logger. */
@Nonnull private final Logger log = LoggerFactory.getLogger(DecryptNameIDs.class);
// Checkstyle: CyclomaticComplexity OFF
/** {@inheritDoc} */
@Override
protected void doExecute(@Nonnull final ProfileRequestContext profileRequestContext) {
final SAMLObject message = getSAMLObject();
try {
if (message instanceof AuthnRequest) {
processSubject(profileRequestContext, ((AuthnRequest) message).getSubject());
} else if (message instanceof SubjectQuery) {
processSubject(profileRequestContext, ((SubjectQuery) message).getSubject());
} else if (message instanceof Response) {
for (final Assertion a : ((Response) message).getAssertions()) {
processAssertion(profileRequestContext, a);
}
} else if (message instanceof LogoutRequest) {
processLogoutRequest(profileRequestContext, (LogoutRequest) message);
} else if (message instanceof ManageNameIDRequest) {
processManageNameIDRequest(profileRequestContext, (ManageNameIDRequest) message);
} else if (message instanceof NameIDMappingRequest) {
processNameIDMappingRequest(profileRequestContext, (NameIDMappingRequest) message);
} else if (message instanceof NameIDMappingResponse) {
processNameIDMappingResponse(profileRequestContext, (NameIDMappingResponse) message);
} else if (message instanceof Assertion) {
processAssertion(profileRequestContext, (Assertion) message);
} else {
log.debug("{} Message was of unrecognized type {}, nothing to do", getLogPrefix(),
message.getClass().getName());
return;
}
} catch (final DecryptionException e) {
log.warn("{} Failure performing decryption", getLogPrefix(), e);
if (isErrorFatal()) {
ActionSupport.buildEvent(profileRequestContext, SAMLEventIds.DECRYPT_NAMEID_FAILED);
}
}
}
// Checkstyle: CyclomaticComplexity ON
/**
* Decrypt an {@link EncryptedID} and return the result.
*
* @param profileRequestContext current profile request context
* @param encID the encrypted object
*
* @return the decrypted name, or null if the object did not need decryption
* @throws DecryptionException if an error occurs during decryption
*/
@Nullable private NameID processEncryptedID(@Nonnull final ProfileRequestContext profileRequestContext,
@Nonnull final EncryptedID encID) throws DecryptionException {
if (!getDecryptionPredicate().apply(
new Pair(profileRequestContext, encID))) {
return null;
}
if (getDecrypter() == null) {
throw new DecryptionException("No decryption parameters, unable to decrypt EncryptedID");
}
final SAMLObject object = getDecrypter().decrypt(encID);
if (object instanceof NameID) {
return (NameID) object;
}
throw new DecryptionException("Decrypted EncryptedID was not a NameID, was a "
+ object.getElementQName().toString());
}
/**
* Decrypt a {@link NewEncryptedID} and return the result.
*
* @param profileRequestContext current profile request context
* @param encID the encrypted object
*
* @return the decrypted name, or null if the object did not need decryption
* @throws DecryptionException if an error occurs during decryption
*/
@Nullable private NewID processNewEncryptedID(@Nonnull final ProfileRequestContext profileRequestContext,
@Nonnull final NewEncryptedID encID) throws DecryptionException {
if (!getDecryptionPredicate().apply(
new Pair(profileRequestContext, encID))) {
return null;
}
if (getDecrypter() == null) {
throw new DecryptionException("No decryption parameters, unable to decrypt NewEncryptedID");
}
return getDecrypter().decrypt(encID);
}
// Checkstyle: CyclomaticComplexity OFF
/**
* Decrypt any {@link EncryptedID} found in a subject and replace it with the result.
*
* @param profileRequestContext current profile request context
* @param subject subject to operate on
*
* @throws DecryptionException if an error occurs
*/
private void processSubject(@Nonnull final ProfileRequestContext profileRequestContext,
@Nullable final Subject subject) throws DecryptionException {
if (subject != null) {
if (subject.getEncryptedID() != null) {
log.debug("{} Decrypting EncryptedID in Subject", getLogPrefix());
try {
final NameID decrypted = processEncryptedID(profileRequestContext, subject.getEncryptedID());
if (decrypted != null) {
subject.setNameID(decrypted);
subject.setEncryptedID(null);
}
} catch (final DecryptionException e) {
if (isErrorFatal()) {
throw e;
}
log.warn("{} Trapped failure decrypting EncryptedID in Subject", getLogPrefix(), e);
}
}
for (final SubjectConfirmation sc : subject.getSubjectConfirmations()) {
if (sc.getEncryptedID() != null) {
log.debug("{} Decrypting EncryptedID in SubjectConfirmation", getLogPrefix());
try {
final NameID decrypted = processEncryptedID(profileRequestContext, subject.getEncryptedID());
if (decrypted != null) {
sc.setNameID(decrypted);
sc.setEncryptedID(null);
}
} catch (final DecryptionException e) {
if (isErrorFatal()) {
throw e;
}
log.warn("{} Trapped failure decrypting EncryptedID in SubjectConfirmation", getLogPrefix(), e);
}
}
}
}
}
// Checkstyle: CyclomaticComplexity ON
/**
* Decrypt any {@link EncryptedID} found in a LogoutRequest and replace it with the result.
*
* @param profileRequestContext current profile request context
* @param request request to operate on
*
* @throws DecryptionException if an error occurs
*/
private void processLogoutRequest(@Nonnull final ProfileRequestContext profileRequestContext,
@Nonnull final LogoutRequest request) throws DecryptionException {
if (request.getEncryptedID() != null) {
log.debug("{} Decrypting EncryptedID in LogoutRequest", getLogPrefix());
final NameID decrypted = processEncryptedID(profileRequestContext, request.getEncryptedID());
if (decrypted != null) {
request.setNameID(decrypted);
request.setEncryptedID(null);
}
}
}
/**
* Decrypt any {@link EncryptedID} found in a ManageNameIDRequest and replace it with the result.
*
* @param profileRequestContext current profile request context
* @param request request to operate on
*
* @throws DecryptionException if an error occurs
*/
private void processManageNameIDRequest(@Nonnull final ProfileRequestContext profileRequestContext,
@Nonnull final ManageNameIDRequest request) throws DecryptionException {
if (request.getEncryptedID() != null) {
log.debug("{} Decrypting EncryptedID in ManageNameIDRequest", getLogPrefix());
final NameID decrypted = processEncryptedID(profileRequestContext, request.getEncryptedID());
if (decrypted != null) {
request.setNameID(decrypted);
request.setEncryptedID(null);
}
}
if (request.getNewEncryptedID() != null) {
log.debug("{} Decrypting NewEncryptedID in ManageNameIDRequest", getLogPrefix());
final NewID decrypted = processNewEncryptedID(profileRequestContext, request.getNewEncryptedID());
if (decrypted != null) {
request.setNewID(decrypted);
request.setNewEncryptedID(null);
}
}
}
/**
* Decrypt any {@link EncryptedID} found in a NameIDMappingRequest and replace it with the result.
*
* @param profileRequestContext current profile request context
* @param request request to operate on
*
* @throws DecryptionException if an error occurs
*/
private void processNameIDMappingRequest(@Nonnull final ProfileRequestContext profileRequestContext,
@Nonnull final NameIDMappingRequest request) throws DecryptionException {
if (request.getEncryptedID() != null) {
log.debug("{} Decrypting EncryptedID in NameIDMappingRequest", getLogPrefix());
final NameID decrypted = processEncryptedID(profileRequestContext, request.getEncryptedID());
if (decrypted != null) {
request.setNameID(decrypted);
request.setEncryptedID(null);
}
}
}
/**
* Decrypt any {@link EncryptedID} found in a NameIDMappingResponse and replace it with the result.
*
* @param profileRequestContext current profile request context
* @param response response to operate on
*
* @throws DecryptionException if an error occurs
*/
private void processNameIDMappingResponse(@Nonnull final ProfileRequestContext profileRequestContext,
@Nonnull final NameIDMappingResponse response) throws DecryptionException {
if (response.getEncryptedID() != null) {
log.debug("{} Decrypting EncryptedID in NameIDMappingRequest", getLogPrefix());
final NameID decrypted = processEncryptedID(profileRequestContext, response.getEncryptedID());
if (decrypted != null) {
response.setNameID(decrypted);
response.setEncryptedID(null);
}
}
}
// Checkstyle: CyclomaticComplexity OFF
/**
* Decrypt any {@link EncryptedID} found in an assertion and replace it with the result.
*
* @param profileRequestContext current profile request context
* @param assertion assertion to operate on
*
* @throws DecryptionException if an error occurs
*/
private void processAssertion(@Nonnull final ProfileRequestContext profileRequestContext,
@Nonnull final Assertion assertion) throws DecryptionException {
try {
processSubject(profileRequestContext, assertion.getSubject());
} catch (final DecryptionException e) {
if (isErrorFatal()) {
throw e;
}
log.warn("{} Trapped failure decrypting EncryptedIDs in Subject", getLogPrefix(), e);
}
if (assertion.getConditions() != null) {
for (final Condition c : assertion.getConditions().getConditions()) {
if (!(c instanceof DelegationRestrictionType)) {
continue;
}
for (final Delegate d : ((DelegationRestrictionType) c).getDelegates()) {
if (d.getEncryptedID() != null) {
log.debug("{} Decrypting EncryptedID in Delegate", getLogPrefix());
try {
final NameID decrypted = processEncryptedID(profileRequestContext, d.getEncryptedID());
if (decrypted != null) {
d.setNameID(decrypted);
d.setEncryptedID(null);
}
} catch (final DecryptionException e) {
if (isErrorFatal()) {
throw e;
}
log.warn("{} Trapped failure decrypting EncryptedID in Delegate", getLogPrefix(), e);
}
}
}
}
}
}
// Checkstyle: CyclomaticComplexity OFF
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