org.wildfly.security.auth.server.RealmIdentity Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed 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.wildfly.security.auth.server;
import static org.wildfly.security.auth.server._private.ElytronMessages.log;
import java.security.Principal;
import java.security.spec.AlgorithmParameterSpec;
import java.util.function.Function;
import org.wildfly.common.Assert;
import org.wildfly.security.auth.SupportLevel;
import org.wildfly.security.auth.principal.AnonymousPrincipal;
import org.wildfly.security.authz.Attributes;
import org.wildfly.security.authz.AuthorizationIdentity;
import org.wildfly.security.credential.AlgorithmCredential;
import org.wildfly.security.credential.Credential;
import org.wildfly.security.evidence.Evidence;
import org.wildfly.security.key.KeyUtil;
/**
* A representation of a pre-authentication identity.
*
* The life of a {@code RealmIdentity} is short and is for a specific authentication attempt. A {@link SecurityRealm} creating a
* {@code RealmIdentity} does not confirm the existence of the identity. The {@link #exists()} method must be used
* for that purpose.
*
* @author Darran Lofthouse
*/
public interface RealmIdentity {
/**
* Get the principal that canonically identifies the identity within the realm. This method may return the principal object
* which was passed in as a parameter to {@link SecurityRealm#getRealmIdentity(Principal)} (a.k.a. domain principal), but
* is not required to do so. Any existent realm identity (i.e. any identity which returns {@code true} on invocation
* of {@link #exists()}) must return a non-{@code null} principal.
*
* @return the principal for this realm identity (may not be {@code null})
*/
Principal getRealmIdentityPrincipal();
/**
* @deprecated Transition method; remove before GA.
*/
default SupportLevel getCredentialAcquireSupport(Class credentialType, String algorithmName) throws RealmUnavailableException {
return getCredentialAcquireSupport(credentialType, algorithmName, null);
}
/**
* Determine whether a given credential type is definitely obtainable, possibly obtainable, or definitely not
* obtainable for this identity.
*
* @param credentialType the exact credential type (must not be {@code null})
* @param algorithmName the algorithm name, or {@code null} if any algorithm is acceptable or the credential type does
* not support algorithm names
* @param parameterSpec the algorithm parameters to match, or {@code null} if any parameters are acceptable or the credential type
* does not support algorithm parameters
* @return the level of support for this credential type (may not be {@code null})
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
SupportLevel getCredentialAcquireSupport(Class credentialType, String algorithmName, AlgorithmParameterSpec parameterSpec) throws RealmUnavailableException;
/**
* Acquire a credential of the given type.
*
* @param credentialType the credential type class (must not be {@code null})
* @param the credential type
* @return the credential, or {@code null} if no such credential exists
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
C getCredential(Class credentialType) throws RealmUnavailableException;
/**
* Acquire a credential of the given type and algorithm name. Realms which support more than one credential of a
* given type must override this method.
*
* @param credentialType the credential type class (must not be {@code null})
* @param algorithmName the algorithm name, or {@code null} if any algorithm is acceptable or the credential type
* does not support algorithm names
* @param the credential type
*
* @return the credential, or {@code null} if no such credential exists
*
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
default C getCredential(Class credentialType, String algorithmName) throws RealmUnavailableException {
if (algorithmName != null) {
final C credential = getCredential(credentialType);
return credential instanceof AlgorithmCredential && algorithmName.equals(((AlgorithmCredential) credential).getAlgorithm()) ? credential : null;
} else {
return getCredential(credentialType);
}
}
/**
* Acquire a credential of the given type and algorithm name. Realms which support more than one credential of a
* given type and algorithm must override this method.
*
* @param credentialType the credential type class (must not be {@code null})
* @param algorithmName the algorithm name, or {@code null} if any algorithm is acceptable or the credential type
* does not support algorithm names
* @param parameterSpec the algorithm parameters to match, or {@code null} if any parameters are acceptable or the credential type
* does not support algorithm parameters
* @param the credential type
*
* @return the credential, or {@code null} if no such credential exists
*
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
default C getCredential(Class credentialType, String algorithmName, AlgorithmParameterSpec parameterSpec) throws RealmUnavailableException {
final C credential = getCredential(credentialType, algorithmName);
if (parameterSpec != null) {
if (! (credential instanceof AlgorithmCredential)) {
return null;
}
return KeyUtil.parametersEqual(parameterSpec, ((AlgorithmCredential) credential).getParameters()) ? credential : null;
} else {
return credential;
}
}
/**
* Apply the given function to the acquired credential, if it is set and of the given type.
*
* @param credentialType the credential type class (must not be {@code null})
* @param function the function to apply (must not be {@code null})
* @param the credential type
* @param the return type
* @return the result of the function, or {@code null} if the criteria are not met
*
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
default R applyToCredential(Class credentialType, Function function) throws RealmUnavailableException {
final Credential credential = getCredential(credentialType);
return credential == null ? null : credential.castAndApply(credentialType, function);
}
/**
* Apply the given function to the acquired credential, if it is set and of the given type and algorithm.
*
* @param credentialType the credential type class (must not be {@code null})
* @param algorithmName the algorithm name, or {@code null} if any algorithm is acceptable or the credential type
* does not support algorithm names
* @param function the function to apply (must not be {@code null})
* @param the credential type
* @param the return type
* @return the result of the function, or {@code null} if the criteria are not met
*
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
default R applyToCredential(Class credentialType, String algorithmName, Function function) throws RealmUnavailableException {
final Credential credential = getCredential(credentialType, algorithmName);
return credential == null ? null : credential.castAndApply(credentialType, algorithmName, function);
}
/**
* Apply the given function to the acquired credential, if it is set and of the given type, algorithm, and parameters.
*
* @param credentialType the credential type class (must not be {@code null})
* @param algorithmName the algorithm name, or {@code null} if any algorithm is acceptable or the credential type
* does not support algorithm names
* @param parameterSpec the algorithm parameters to match, or {@code null} if any parameters are acceptable or the credential type
* does not support algorithm parameters
* @param function the function to apply (must not be {@code null})
* @param the credential type
* @param the return type
* @return the result of the function, or {@code null} if the criteria are not met
*
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
default R applyToCredential(Class credentialType, String algorithmName, AlgorithmParameterSpec parameterSpec, Function function) throws RealmUnavailableException {
final Credential credential = getCredential(credentialType, algorithmName, parameterSpec);
return credential == null ? null : credential.castAndApply(credentialType, algorithmName, parameterSpec, function);
}
/**
* Update a credential of this realm identity.
*
* @param credential the new credential (must not be {@code null})
* @throws UnsupportedOperationException if the implementing class does not support updating a credential
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
default void updateCredential(Credential credential) throws RealmUnavailableException {
throw log.credentialUpdateNotSupportedByRealm();
}
/**
* Determine whether a given type of evidence is definitely verifiable, possibly verifiable, or definitely not verifiable.
*
* @param evidenceType the type of evidence to be verified (must not be {@code null})
* @param algorithmName the algorithm name, or {@code null} if any algorithm is acceptable or the evidence type does
* not support algorithm names
* @return the level of support for this evidence type
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
SupportLevel getEvidenceVerifySupport(Class evidenceType, String algorithmName) throws RealmUnavailableException;
/**
* Verify the given evidence against a credential of this identity. The credential to be used is selected based on
* the evidence type.
*
* @param evidence the evidence to verify
* @return {@code true} if verification was successful, {@code false} otherwise
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
boolean verifyEvidence(Evidence evidence) throws RealmUnavailableException;
/**
* Determine if the identity exists in lieu of verifying or acquiring a credential. This method is intended to be used to
* verify an identity for non-authentication purposes only.
*
* Implementations of this method should return {@code false} up until the point it is known that a call to
* {@link #getAuthorizationIdentity()} can successfully return an identity.
*
* If a realm can load an identity independently of credential acquisition and evidence verification if not already loaded
* it should be loaded at the time of this call to return an accurate result.
*
* @return {@code true} if the identity exists in this realm, {@code false} otherwise
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
boolean exists() throws RealmUnavailableException;
/**
* Dispose this realm identity after a completed authentication attempt.
*/
default void dispose() {
}
/**
* Get an authorization identity for this pre-authenticated identity.
*
* @return the authorization identity (may not be {@code null})
*
* @throws IllegalStateException if called for an identity that does not exist
* @throws RealmUnavailableException if the realm is not able to handle requests for any reason
*/
default AuthorizationIdentity getAuthorizationIdentity() throws RealmUnavailableException {
if (exists()) {
return AuthorizationIdentity.EMPTY;
} else {
throw log.userDoesNotExist();
}
}
/**
* Get the attributes for the realm identity.
*
* @return the attributes, or {@code null} if the implementing class does not support getting attributes
* @throws RealmUnavailableException if accessing the attributes fails for some reason
*/
default Attributes getAttributes() throws RealmUnavailableException {
return null;
}
/**
* The anonymous realm identity.
*/
RealmIdentity ANONYMOUS = new RealmIdentity() {
public Principal getRealmIdentityPrincipal() {
return AnonymousPrincipal.getInstance();
}
public SupportLevel getCredentialAcquireSupport(final Class credentialType, final String algorithmName, final AlgorithmParameterSpec parameterSpec) throws RealmUnavailableException {
Assert.checkNotNullParam("credentialType", credentialType);
return SupportLevel.UNSUPPORTED;
}
public SupportLevel getEvidenceVerifySupport(final Class evidenceType, final String algorithmName) throws RealmUnavailableException {
Assert.checkNotNullParam("evidenceType", evidenceType);
return SupportLevel.UNSUPPORTED;
}
public C getCredential(final Class credentialType) throws RealmUnavailableException {
Assert.checkNotNullParam("credentialType", credentialType);
return null;
}
public boolean verifyEvidence(final Evidence evidence) throws RealmUnavailableException {
Assert.checkNotNullParam("evidence", evidence);
return false;
}
public boolean exists() throws RealmUnavailableException {
return true;
}
};
/**
* An identity for a non-existent user.
*/
RealmIdentity NON_EXISTENT = new RealmIdentity() {
@Override
public Principal getRealmIdentityPrincipal() {
return null;
}
public SupportLevel getCredentialAcquireSupport(final Class credentialType, final String algorithmName, final AlgorithmParameterSpec parameterSpec) throws RealmUnavailableException {
Assert.checkNotNullParam("credentialType", credentialType);
return SupportLevel.UNSUPPORTED;
}
public SupportLevel getEvidenceVerifySupport(final Class evidenceType, final String algorithmName) throws RealmUnavailableException {
Assert.checkNotNullParam("evidenceType", evidenceType);
return SupportLevel.UNSUPPORTED;
}
public C getCredential(final Class credentialType) throws RealmUnavailableException {
Assert.checkNotNullParam("credentialType", credentialType);
return null;
}
public boolean verifyEvidence(final Evidence evidence) throws RealmUnavailableException {
Assert.checkNotNullParam("evidence", evidence);
return false;
}
public boolean exists() throws RealmUnavailableException {
return false;
}
@Override
public String toString() {
return "NON_EXISTENT";
}
};
}