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/*
* JBoss, Home of Professional Open Source
* Copyright 2013 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 java.security.AccessController.doPrivileged;
import static java.util.Collections.emptyMap;
import static org.wildfly.common.Assert.checkNotNullParam;
import static org.wildfly.security.auth.server._private.ElytronMessages.log;
import java.security.Principal;
import java.security.PrivilegedAction;
import java.security.spec.AlgorithmParameterSpec;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.function.Supplier;
import java.util.function.UnaryOperator;
import org.wildfly.common.Assert;
import org.wildfly.common.function.ExceptionBiFunction;
import org.wildfly.common.function.ExceptionFunction;
import org.wildfly.security.auth.SupportLevel;
import org.wildfly.security.auth.principal.AnonymousPrincipal;
import org.wildfly.security.auth.principal.NamePrincipal;
import org.wildfly.security.auth.principal.RealmNestedPrincipal;
import org.wildfly.security.auth.server.event.SecurityEvent;
import org.wildfly.security.authz.AuthorizationIdentity;
import org.wildfly.security.authz.PermissionMapper;
import org.wildfly.security.authz.RoleDecoder;
import org.wildfly.security.authz.RoleMapper;
import org.wildfly.security.authz.Roles;
import org.wildfly.security.credential.BearerTokenCredential;
import org.wildfly.security.credential.Credential;
import org.wildfly.security.credential.PasswordCredential;
import org.wildfly.security.evidence.BearerTokenEvidence;
import org.wildfly.security.evidence.Evidence;
import org.wildfly.security.evidence.PasswordGuessEvidence;
import org.wildfly.security.password.interfaces.ClearPassword;
import org.wildfly.security.permission.ElytronPermission;
import org.wildfly.security.permission.PermissionVerifier;
/**
* A security domain. Security domains encapsulate a set of security policies.
*
* @author David M. Lloyd
* @author Darran Lofthouse
*/
public final class SecurityDomain {
private static final ConcurrentHashMap CLASS_LOADER_DOMAIN_MAP = new ConcurrentHashMap<>();
private static final RealmInfo EMPTY_REALM_INFO = new RealmInfo();
static final ElytronPermission AUTHENTICATE = ElytronPermission.forName("authenticate");
static final ElytronPermission CREATE_SECURITY_DOMAIN = ElytronPermission.forName("createSecurityDomain");
static final ElytronPermission REGISTER_SECURITY_DOMAIN = ElytronPermission.forName("registerSecurityDomain");
static final ElytronPermission GET_SECURITY_DOMAIN = ElytronPermission.forName("getSecurityDomain");
static final ElytronPermission UNREGISTER_SECURITY_DOMAIN = ElytronPermission.forName("unregisterSecurityDomain");
static final ElytronPermission CREATE_AUTH_CONTEXT = ElytronPermission.forName("createServerAuthenticationContext");
static final ElytronPermission GET_IDENTITY = ElytronPermission.forName("getIdentity");
static final ElytronPermission GET_IDENTITY_FOR_UPDATE = ElytronPermission.forName("getIdentityForUpdate");
static final ElytronPermission CREATE_AD_HOC_IDENTITY = ElytronPermission.forName("createAdHocIdentity");
static final ElytronPermission HANDLE_SECURITY_EVENT = ElytronPermission.forName("handleSecurityEvent");
private final Map realmMap;
private final String defaultRealmName;
private final Function preRealmPrincipalRewriter;
private final RealmMapper realmMapper;
private final Function postRealmPrincipalRewriter;
private final ThreadLocal> currentSecurityIdentity;
private final RoleMapper roleMapper;
private final SecurityIdentity anonymousIdentity;
private final PermissionMapper permissionMapper;
private final Map categoryRoleMappers;
private final UnaryOperator securityIdentityTransformer;
private final Predicate trustedSecurityDomain;
private final Consumer securityEventListener;
private final Function evidenceDecoder;
private final RoleDecoder roleDecoder;
SecurityDomain(Builder builder, final LinkedHashMap realmMap) {
this.realmMap = realmMap;
this.defaultRealmName = builder.defaultRealmName;
this.preRealmPrincipalRewriter = builder.principalDecoder.andThen(builder.preRealmRewriter);
this.realmMapper = builder.realmMapper;
this.roleMapper = builder.roleMapper;
this.permissionMapper = builder.permissionMapper;
this.postRealmPrincipalRewriter = builder.postRealmRewriter;
this.securityIdentityTransformer = builder.securityIdentityTransformer;
this.trustedSecurityDomain = builder.trustedSecurityDomain;
this.securityEventListener = builder.securityEventListener;
this.evidenceDecoder = builder.evidenceDecoder;
this.roleDecoder = builder.roleDecoder;
final Map originalRoleMappers = builder.categoryRoleMappers;
final Map copiedRoleMappers;
if (originalRoleMappers.isEmpty()) {
copiedRoleMappers = emptyMap();
} else if (originalRoleMappers.size() == 1) {
final Map.Entry entry = originalRoleMappers.entrySet().iterator().next();
copiedRoleMappers = Collections.singletonMap(entry.getKey(), entry.getValue());
} else {
copiedRoleMappers = new LinkedHashMap<>(originalRoleMappers);
}
this.categoryRoleMappers = copiedRoleMappers;
// todo configurable
anonymousIdentity = Assert.assertNotNull(securityIdentityTransformer.apply(new SecurityIdentity(this, AnonymousPrincipal.getInstance(), EMPTY_REALM_INFO, AuthorizationIdentity.EMPTY, copiedRoleMappers, IdentityCredentials.NONE, IdentityCredentials.NONE)));
currentSecurityIdentity = ThreadLocal.withInitial(() -> anonymousIdentity);
}
/**
* Register this {@link SecurityDomain} with the specified {@link ClassLoader}.
*
* Registration with enabled security manager requires {@code registerSecurityDomain} {@link ElytronPermission}.
*
* @throws IllegalStateException If a {@link SecurityDomain} is already associated with the specified {@link ClassLoader}.
* @param classLoader the non {@code null} {@link ClassLoader} to associate this {@link SecurityDomain} with.
*/
public void registerWithClassLoader(ClassLoader classLoader) {
checkNotNullParam("classLoader", classLoader);
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(REGISTER_SECURITY_DOMAIN);
}
final SecurityDomain classLoaderDomain = CLASS_LOADER_DOMAIN_MAP.putIfAbsent(classLoader, this);
if ((classLoaderDomain != null) && (classLoaderDomain != this)) {
throw log.classLoaderSecurityDomainExists();
}
}
/**
* Get the {@link SecurityDomain} associated with the context class loader of the calling Thread or {@code null} if one is
* not associated.
*
* Obtaining security domain with enabled security manager requires {@code getSecurityDomain} {@link ElytronPermission}.
*
* @return the {@link SecurityDomain} associated with the context class loader of the calling Thread or {@code null} if one
* is not associated.
*/
public static SecurityDomain getCurrent() {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(GET_SECURITY_DOMAIN);
}
final Thread currentThread = Thread.currentThread();
ClassLoader classLoader;
if (sm != null) {
classLoader = doPrivileged((PrivilegedAction) currentThread::getContextClassLoader);
} else {
classLoader = currentThread.getContextClassLoader();
}
return classLoader != null ? CLASS_LOADER_DOMAIN_MAP.get(classLoader) : null;
}
/**
* Get the security domain associated with the given identity.
*
* Obtaining security domain with enabled security manager requires {@code getSecurityDomain} {@link ElytronPermission}.
*
* @param identity the security identity (must not be {@code null})
* @return the identity's security domain (not {@code null})
*/
public static SecurityDomain forIdentity(SecurityIdentity identity) {
checkNotNullParam("identity", identity);
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(GET_SECURITY_DOMAIN);
}
return identity.getSecurityDomain();
}
/**
* Unregister any {@link SecurityDomain} associated with the specified {@link ClassLoader}.
*
* Unregistration with enabled security manager requires {@code unregisterSecurityDomain} {@link ElytronPermission}.
*
* @param classLoader the non {@code null} {@link ClassLoader} to clear any {@link SecurityDomain} association.
*/
public static void unregisterClassLoader(ClassLoader classLoader) {
checkNotNullParam("classLoader", classLoader);
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(UNREGISTER_SECURITY_DOMAIN);
}
CLASS_LOADER_DOMAIN_MAP.remove(classLoader);
}
/**
* Create a new security domain builder.
*
* @return the builder
*/
public static Builder builder() {
return new Builder();
}
/**
* Create a new authentication context for this security domain which can be used to carry out a single authentication
* operation.
*
* Calling with enabled security manager requires {@code createServerAuthenticationContext} {@link ElytronPermission}.
*
* @return the new authentication context
*/
public ServerAuthenticationContext createNewAuthenticationContext() {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(CREATE_AUTH_CONTEXT);
}
return new ServerAuthenticationContext(this, MechanismConfigurationSelector.constantSelector(MechanismConfiguration.EMPTY));
}
/**
* Create a new authentication context for this security domain which can be used to carry out a single authentication
* operation.
*
* Calling with enabled security manager requires {@code createServerAuthenticationContext} {@link ElytronPermission}.
*
* @param mechanismConfigurationSelector the selector to use to obtain the mechanism configuration
* @return the new authentication context
*/
public ServerAuthenticationContext createNewAuthenticationContext(MechanismConfigurationSelector mechanismConfigurationSelector) {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(CREATE_AUTH_CONTEXT);
}
return new ServerAuthenticationContext(this, mechanismConfigurationSelector);
}
ServerAuthenticationContext createNewAuthenticationContext(SecurityIdentity capturedIdentity, MechanismConfigurationSelector mechanismConfigurationSelector) {
assert capturedIdentity.getSecurityDomain() == this;
return new ServerAuthenticationContext(capturedIdentity, mechanismConfigurationSelector);
}
/**
* Perform an authentication based on {@link Evidence} alone.
*
* Note: It is the caller's responsibility to destroy any evidence passed into this method.
*
* @param evidence the {@link Evidence} to use for authentication.
* @return the authenticated identity.
* @throws RealmUnavailableException if the requires {@link SecurityRealm} is not available.
* @throws SecurityException if authentication fails.
*/
public SecurityIdentity authenticate(Evidence evidence) throws RealmUnavailableException, SecurityException {
return authenticate((Principal) null, evidence);
}
/**
* Perform an authentication based on {@link Evidence} for the specified identity name.
*
* Note: It is the caller's responsibility to destroy any evidence passed into this method.
*
* @param name the name of the identity to authenticate or {@code null} if the identity is to be derived from the evidence.
* @param evidence the {@link Evidence} to use for authentication.
* @return the authenticated identity.
* @throws RealmUnavailableException if the requires {@link SecurityRealm} is not available.
* @throws SecurityException if authentication fails.
*/
public SecurityIdentity authenticate(String name, Evidence evidence) throws RealmUnavailableException, SecurityException {
return authenticate(name != null ? new NamePrincipal(name) : null, evidence);
}
/**
* Perform an authentication based on {@link Evidence} for the specified identity {@link Principal}.
*
* Note: It is the caller's responsibility to destroy any evidence passed into this method.
*
* Calling with enabled security manager requires {@code authenticate} {@link ElytronPermission}.
*
* @param principal the principal of the identity to authenticate or {@code null} if the identity is to be derived from the evidence.
* @param evidence the {@link Evidence} to use for authentication.
* @return the authenticated identity.
* @throws RealmUnavailableException if the requires {@link SecurityRealm} is not available.
* @throws SecurityException if authentication fails.
*/
public SecurityIdentity authenticate(Principal principal, Evidence evidence) throws RealmUnavailableException, SecurityException {
final SecurityManager securityManager = System.getSecurityManager();
if (securityManager != null) {
securityManager.checkPermission(AUTHENTICATE);
}
try (final ServerAuthenticationContext serverAuthenticationContext = new ServerAuthenticationContext(this,
MechanismConfigurationSelector.constantSelector(MechanismConfiguration.EMPTY))) {
if (principal != null)
serverAuthenticationContext.setAuthenticationPrincipal(principal);
if (serverAuthenticationContext.verifyEvidence(evidence)) {
if (serverAuthenticationContext.authorize()) {
if (evidence instanceof PasswordGuessEvidence) {
PasswordGuessEvidence passwordGuessEvidence = PasswordGuessEvidence.class.cast(evidence);
serverAuthenticationContext.addPrivateCredential(new PasswordCredential(
ClearPassword.createRaw(ClearPassword.ALGORITHM_CLEAR, passwordGuessEvidence.getGuess())));
} else if (evidence instanceof BearerTokenEvidence) {
BearerTokenEvidence tokenEvidence = BearerTokenEvidence.class.cast(evidence);
serverAuthenticationContext.addPrivateCredential(new BearerTokenCredential(tokenEvidence.getToken()));
} else {
log.tracef(
"Evidence [%s] does not map to a supported credential type. Credentials are not available from authorized identity and identity propagation may not work",
evidence.getClass().getName());
}
serverAuthenticationContext.succeed();
return serverAuthenticationContext.getAuthorizedIdentity();
} else {
serverAuthenticationContext.fail();
throw log.authenticationFailedAuthorization();
}
} else {
serverAuthenticationContext.fail();
throw log.authenticationFailedEvidenceVerification();
}
}
}
/**
* Look up a {@link RealmIdentity} by name by wrapping the name in a {@link NamePrincipal} and calling {@link #getIdentity(Principal)}.
* The returned identity must be {@linkplain RealmIdentity#dispose() disposed}.
*
* @param name the name to map (must not be {@code null})
* @return the identity for the name (not {@code null}, may be non-existent)
* @throws RealmUnavailableException if the realm is not able to perform the mapping
* @throws IllegalArgumentException if the name is not valid
* @throws SecurityException if the caller is not authorized to perform the operation
*/
public RealmIdentity getIdentity(String name) throws RealmUnavailableException {
Assert.checkNotNullParam("name", name);
return getIdentity(new NamePrincipal(name));
}
/**
* Look up a {@link RealmIdentity} by principal.
* The returned identity must be {@linkplain RealmIdentity#dispose() disposed}.
*
* Calling with enabled security manager requires {@code getIdentity} {@link ElytronPermission}.
*
* @param principal the principal to map (must not be {@code null})
* @return the identity for the name (not {@code null}, may be non-existent)
* @throws IllegalArgumentException if the principal could not be successfully decoded to a name
* @throws RealmUnavailableException if the realm is not able to perform the mapping
* @throws SecurityException if the caller is not authorized to perform the operation
*/
public RealmIdentity getIdentity(Principal principal) throws RealmUnavailableException, IllegalArgumentException {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(GET_IDENTITY);
}
return getIdentityPrivileged(principal, SecurityRealm.class, SecurityRealm::getRealmIdentity, () -> RealmIdentity.NON_EXISTENT, () -> RealmIdentity.ANONYMOUS);
}
/**
* Look up a {@link ModifiableRealmIdentity} by principal.
* The returned identity must be {@linkplain RealmIdentity#dispose() disposed}.
*
* Calling with enabled security manager requires {@code getIdentityForUpdate} {@link ElytronPermission}.
*
* @param principal the principal to map (must not be {@code null})
* @return the identity for the name (not {@code null}, may be non-existent)
* @throws IllegalArgumentException if the principal could not be successfully decoded to a name
* @throws RealmUnavailableException if the realm is not able to perform the mapping
* @throws SecurityException if the caller is not authorized to perform the operation
*/
public ModifiableRealmIdentity getIdentityForUpdate(Principal principal) throws RealmUnavailableException, IllegalArgumentException {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(GET_IDENTITY_FOR_UPDATE);
}
return getIdentityPrivileged(principal, ModifiableSecurityRealm.class, ModifiableSecurityRealm::getRealmIdentityForUpdate, () -> ModifiableRealmIdentity.NON_EXISTENT, () -> ModifiableRealmIdentity.NON_EXISTENT);
}
/**
* Get a function which can be used to look up principals without a security manager permission check.
* All returned identities must be {@linkplain RealmIdentity#dispose() disposed}.
*
* Calling with enabled security manager requires {@code getIdentity} {@link ElytronPermission}.
*
* @return the lookup function (not {@code null})
* @throws SecurityException if the caller is not authorized to perform the operation
*/
public ExceptionFunction getIdentityLookupFunction() {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(GET_IDENTITY);
}
return p -> getIdentityPrivileged(p, SecurityRealm.class, SecurityRealm::getRealmIdentity, () -> RealmIdentity.NON_EXISTENT, () -> RealmIdentity.ANONYMOUS);
}
/**
* Get a function which can be used to look up principals for update without a security manager permission check.
* All returned identities must be {@linkplain RealmIdentity#dispose() disposed}.
* Calling with enabled security manager requires {@code getIdentityForUpdate} {@link ElytronPermission}.
*
* @return the lookup function (not {@code null})
* @throws SecurityException if the caller is not authorized to perform the operation
*/
public ExceptionFunction getIdentityLookupForUpdateFunction() {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(GET_IDENTITY_FOR_UPDATE);
}
return p -> getIdentityPrivileged(p, ModifiableSecurityRealm.class, ModifiableSecurityRealm::getRealmIdentityForUpdate, () -> ModifiableRealmIdentity.NON_EXISTENT, () -> ModifiableRealmIdentity.NON_EXISTENT);
}
I getIdentityPrivileged(Principal principal, Class realmType, ExceptionBiFunction fn, Supplier nonExistent, Supplier anonymous) throws RealmUnavailableException {
Assert.checkNotNullParam("principal", principal);
if (principal instanceof AnonymousPrincipal) {
return anonymous.get();
}
if (principal instanceof RealmNestedPrincipal) {
final RealmNestedPrincipal realmNestedPrincipal = (RealmNestedPrincipal) principal;
final SecurityRealm securityRealm = getRealmInfo(realmNestedPrincipal.getRealmName()).getSecurityRealm();
if (realmType.isInstance(securityRealm)) {
return fn.apply(realmType.cast(securityRealm), realmNestedPrincipal.getNestedPrincipal());
} else {
return nonExistent.get();
}
}
Principal preRealmPrincipal = preRealmPrincipalRewriter.apply(principal);
if (preRealmPrincipal == null) {
throw log.invalidName();
}
String realmName = mapRealmName(preRealmPrincipal, null);
RealmInfo realmInfo = getRealmInfo(realmName);
SecurityRealm securityRealm = realmInfo.getSecurityRealm();
assert securityRealm != null;
Principal postRealmPrincipal = postRealmPrincipalRewriter.apply(preRealmPrincipal);
if (postRealmPrincipal == null) {
throw log.invalidName();
}
Principal realmRewrittenPrincipal = realmInfo.getPrincipalRewriter().apply(postRealmPrincipal);
if (realmRewrittenPrincipal == null) {
throw log.invalidName();
}
log.tracef("Principal mapping: [%s], pre-realm rewritten: [%s], realm name: [%s], post realm rewritten: [%s], realm rewritten: [%s]",
principal, preRealmPrincipal, realmName, postRealmPrincipal, realmRewrittenPrincipal);
if (realmType.isInstance(securityRealm)) {
return fn.apply(realmType.cast(securityRealm), realmRewrittenPrincipal);
} else {
return nonExistent.get();
}
}
SecurityRealm getRealm(final String realmName) {
return getRealmInfo(realmName).getSecurityRealm();
}
RealmInfo getRealmInfo(final String realmName) {
RealmInfo realmInfo = this.realmMap.get(realmName);
if (realmInfo == null) {
realmInfo = this.realmMap.get(this.defaultRealmName);
}
if (realmInfo == null) {
log.tracef("Unable to obtain RealmInfo [%s] and no default set - using empty", realmName);
realmInfo = EMPTY_REALM_INFO;
}
return realmInfo;
}
Collection getRealmInfos() {
return realmMap.values();
}
/**
* Determine whether a credential of the given type and algorithm is definitely obtainable, possibly obtainable (for
* some identities), or definitely not obtainable.
*
* Credential is {@link SupportLevel#SUPPORTED}, if it is supported by all realms of the domain.
* Credential is {@link SupportLevel#POSSIBLY_SUPPORTED} if it is supported or possibly supported by at least one realm of the domain.
* Otherwise it is {@link SupportLevel#UNSUPPORTED}.
*
* @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
*/
public SupportLevel getCredentialAcquireSupport(Class credentialType, String algorithmName, AlgorithmParameterSpec parameterSpec) {
return getSupportLevel(r -> {
try {
return r.getCredentialAcquireSupport(credentialType, algorithmName, parameterSpec);
} catch (RealmUnavailableException e) {
log.trace("Failed to obtain credential acquire support from realm", e);
return null;
}
});
}
/**
* Determine whether a credential of the given type and algorithm is definitely obtainable, possibly obtainable (for
* some identities), or definitely not obtainable.
*
* Credential is {@link SupportLevel#SUPPORTED}, if it is supported by all realms of the domain.
* Credential is {@link SupportLevel#POSSIBLY_SUPPORTED} if it is supported or possibly supported by at least one realm of the domain.
* Otherwise it is {@link SupportLevel#UNSUPPORTED}.
*
* @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
* @return the level of support for this credential
*/
public SupportLevel getCredentialAcquireSupport(Class credentialType, String algorithmName) {
return getCredentialAcquireSupport(credentialType, algorithmName, null);
}
/**
* Determine whether a credential of the given type and algorithm is definitely obtainable, possibly obtainable (for
* some identities), or definitely not obtainable.
*
* Credential is {@link SupportLevel#SUPPORTED}, if it is supported by all realms of the domain.
* Credential is {@link SupportLevel#POSSIBLY_SUPPORTED} if it is supported or possibly supported by at least one realm of the domain.
* Otherwise it is {@link SupportLevel#UNSUPPORTED}.
*
* @param credentialType the exact credential type (must not be {@code null})
* @return the level of support for this credential
*/
public SupportLevel getCredentialAcquireSupport(Class credentialType) {
return getCredentialAcquireSupport(credentialType, null);
}
/**
* Determine whether a given type of evidence is definitely verifiable, possibly verifiable (for some identities),
* or definitely not verifiable.
*
* Evidence is {@link SupportLevel#SUPPORTED}, if it is supported by all realms of the domain.
* Evidence is {@link SupportLevel#POSSIBLY_SUPPORTED} if it is supported or possibly supported by at least one realm of the domain.
* Otherwise it is {@link SupportLevel#UNSUPPORTED}.
*
* @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
*/
public SupportLevel getEvidenceVerifySupport(Class evidenceType, String algorithmName) {
return getSupportLevel(r -> {
try {
return r.getEvidenceVerifySupport(evidenceType, algorithmName);
} catch (RealmUnavailableException e) {
log.trace("Failed to obtain evidence verify support from realm", e);
return null;
}
});
}
/**
* Determine whether a given type of evidence is definitely verifiable, possibly verifiable (for some identities),
* or definitely not verifiable.
*
* Evidence is {@link SupportLevel#SUPPORTED}, if it is supported by all realms of the domain.
* Evidence is {@link SupportLevel#POSSIBLY_SUPPORTED} if it is supported or possibly supported by at least one realm of the domain.
* Otherwise it is {@link SupportLevel#UNSUPPORTED}.
*
* @param evidenceType the type of evidence to be verified (must not be {@code null})
* @return the level of support for this evidence type
*/
public SupportLevel getEvidenceVerifySupport(Class evidenceType) {
return getEvidenceVerifySupport(evidenceType, null);
}
private SupportLevel getSupportLevel(final Function getSupportLevel) {
SupportLevel min, max;
min = max = null;
Iterator iterator = realmMap.values().iterator();
while (iterator.hasNext()) {
RealmInfo realmInfo = iterator.next();
SecurityRealm realm = realmInfo.getSecurityRealm();
final SupportLevel support = getSupportLevel.apply(realm);
if (support != null) {
if (min == null || max == null) {
min = max = support;
} else {
if (support.compareTo(min) < 0) { min = support; }
if (support.compareTo(max) > 0) { max = support; }
}
}
}
if (min == null || max == null) {
return SupportLevel.UNSUPPORTED;
} else {
return minMax(min, max);
}
}
private SupportLevel minMax(SupportLevel min, SupportLevel max) {
if (min == max) return min;
if (max == SupportLevel.UNSUPPORTED) {
return SupportLevel.UNSUPPORTED;
} else if (min == SupportLevel.SUPPORTED) {
return SupportLevel.SUPPORTED;
} else {
return SupportLevel.POSSIBLY_SUPPORTED;
}
}
/**
* Get the current security identity for this domain.
*
* Code can be executed with given identity using {@code SecurityIdentity.runAs*} methods.
*
* @return the current security identity for this domain (not {@code null})
*/
public SecurityIdentity getCurrentSecurityIdentity() {
final SecurityIdentity identity = currentSecurityIdentity.get().get();
return identity == null ? anonymousIdentity : identity;
}
/**
* Get the anonymous security identity for this realm.
*
* @return the anonymous security identity for this realm (not {@code null})
*/
public SecurityIdentity getAnonymousSecurityIdentity() {
return anonymousIdentity;
}
/**
* Create an empty ad-hoc identity. The identity will have no authorization information and no credentials associated
* with it.
*
* @param name the identity name (must not be {@code null})
* @return the ad-hoc identity
*/
public SecurityIdentity createAdHocIdentity(String name) {
checkNotNullParam("name", name);
return createAdHocIdentity(new NamePrincipal(name));
}
/**
* Create an empty ad-hoc identity. The identity will have no authorization information and no credentials associated
* with it.
*
* Calling with enabled security manager requires {@code createAdHocIdentity} {@link ElytronPermission}.
*
* @param principal the identity principal (must not be {@code null})
* @return the ad-hoc identity
*/
public SecurityIdentity createAdHocIdentity(Principal principal) {
checkNotNullParam("principal", principal);
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(CREATE_AD_HOC_IDENTITY);
}
return new SecurityIdentity(this, principal, EMPTY_REALM_INFO, AuthorizationIdentity.EMPTY, emptyMap(), IdentityCredentials.NONE, IdentityCredentials.NONE);
}
Supplier getAndSetCurrentSecurityIdentity(Supplier newIdentity) {
try {
final Supplier oldIdentity = currentSecurityIdentity.get();
return oldIdentity == null ? anonymousIdentity : oldIdentity;
} finally {
if (newIdentity == anonymousIdentity) {
currentSecurityIdentity.remove();
} else {
currentSecurityIdentity.set(newIdentity);
}
}
}
void setCurrentSecurityIdentity(Supplier newIdentity) {
if (newIdentity == anonymousIdentity) {
currentSecurityIdentity.remove();
} else {
currentSecurityIdentity.set(newIdentity);
}
}
Roles mapRoles(SecurityIdentity securityIdentity) {
Assert.checkNotNullParam("securityIdentity", securityIdentity);
AuthorizationIdentity identity = securityIdentity.getAuthorizationIdentity();
RealmInfo realmInfo = securityIdentity.getRealmInfo();
// zeroth role mapping, just grab roles from the identity
Roles decodedRoles = realmInfo.getRoleDecoder().decodeRoles(identity);
// determine roles based on any runtime attributes associated with the identity
Roles domainDecodedRoles = securityIdentity.getSecurityDomain().getRoleDecoder().decodeRoles(identity);
Roles combinedRoles = decodedRoles.or(domainDecodedRoles);
// apply the first level mapping, which is based on the role mapper associated with a realm.
Roles realmMappedRoles = realmInfo.getRoleMapper().mapRoles(combinedRoles);
// apply the second level mapping, which is based on the role mapper associated with this security domain.
Roles domainMappedRoles = roleMapper.mapRoles(realmMappedRoles);
if (log.isTraceEnabled()) {
log.tracef("Role mapping: principal [%s] -> decoded roles [%s] -> domain decoded roles [%s] -> realm mapped roles [%s] -> domain mapped roles [%s]",
securityIdentity.getPrincipal(), String.join(", ", decodedRoles), String.join(", ", domainDecodedRoles), String.join(", ", realmMappedRoles), String.join(", ", domainMappedRoles));
}
return domainMappedRoles;
}
PermissionVerifier mapPermissions(final SecurityIdentity securityIdentity) {
Assert.checkNotNullParam("securityIdentity", securityIdentity);
final Roles roles = securityIdentity.getRoles();
PermissionVerifier verifier = permissionMapper.mapPermissions(securityIdentity, roles);
if (log.isTraceEnabled()) {
return (permission) -> {
boolean decision = verifier.implies(permission);
log.tracef("Permission mapping: identity [%s] with roles [%s] implies %s = %b",
securityIdentity.getPrincipal(), String.join(", ", roles), permission, decision);
return decision;
};
} else {
return verifier;
}
}
Function getPreRealmRewriter() {
return preRealmPrincipalRewriter;
}
String mapRealmName(final Principal principal, final Evidence evidence) {
String realm = realmMapper.getRealmMapping(principal, evidence);
return realm != null ? realm : defaultRealmName;
}
String getDefaultRealmName() {
return defaultRealmName;
}
RealmMapper getRealmMapper() {
return realmMapper;
}
Function getPostRealmRewriter() {
return postRealmPrincipalRewriter;
}
RoleMapper getRoleMapper() {
return roleMapper;
}
Map getCategoryRoleMappers() {
return categoryRoleMappers;
}
SecurityIdentity transform(final SecurityIdentity securityIdentity) {
Assert.checkNotNullParam("securityIdentity", securityIdentity);
return Assert.assertNotNull(securityIdentityTransformer.apply(securityIdentity));
}
boolean trustsDomain(final SecurityDomain domain) {
Assert.checkNotNullParam("domain", domain);
return this == domain || trustedSecurityDomain.test(domain);
}
/**
* Handle a {@link SecurityEvent}.
*
* Calling with enabled security manager requires {@code handleSecurityEvent} {@link ElytronPermission}.
*
* @param securityEvent {@link SecurityEvent} to be handled
* @see Builder#setSecurityEventListener(Consumer)
*/
public void handleSecurityEvent(final SecurityEvent securityEvent) {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(HANDLE_SECURITY_EVENT);
}
if (!securityEvent.getSecurityIdentity().getSecurityDomain().equals(this)) {
log.securityEventIdentityWrongDomain();
}
this.securityEventListener.accept(securityEvent);
}
static void safeHandleSecurityEvent(final SecurityDomain domain, final SecurityEvent event) {
checkNotNullParam("domain", domain);
checkNotNullParam("event", event);
try {
domain.handleSecurityEvent(event);
} catch (Exception e) {
log.eventHandlerFailed(e);
}
}
Function getEvidenceDecoder() {
return evidenceDecoder;
}
RoleDecoder getRoleDecoder() {
return roleDecoder;
}
/**
* A builder for creating new security domains.
*/
public static final class Builder {
private boolean built = false;
private final HashMap realms = new HashMap<>();
private Function preRealmRewriter = Function.identity();
private Function principalDecoder = Function.identity();
private Function postRealmRewriter = Function.identity();
private String defaultRealmName;
private RealmMapper realmMapper = RealmMapper.DEFAULT_REALM_MAPPER;
private RoleMapper roleMapper = RoleMapper.IDENTITY_ROLE_MAPPER;
private PermissionMapper permissionMapper = PermissionMapper.EMPTY_PERMISSION_MAPPER;
private Map categoryRoleMappers = emptyMap();
private UnaryOperator securityIdentityTransformer = UnaryOperator.identity();
private Predicate trustedSecurityDomain = domain -> false;
private Consumer securityEventListener = e -> {};
private Function evidenceDecoder = evidence -> evidence.getDefaultPrincipal();
private RoleDecoder roleDecoder = RoleDecoder.EMPTY;
Builder() {
}
/**
* Sets a pre-realm name rewriter, which rewrites the authentication name before a realm is selected.
*
* @param rewriter the name rewriter (must not be {@code null})
* @return this builder
*/
public Builder setPreRealmRewriter(NameRewriter rewriter) {
return setPreRealmRewriter(rewriter.asPrincipalRewriter());
}
/**
* Sets a pre-realm name rewriter, which rewrites the authentication name before a realm is selected.
*
* @param rewriter the name rewriter (must not be {@code null})
* @return this builder
*/
public Builder setPreRealmRewriter(final Function rewriter) {
Assert.checkNotNullParam("rewriter", rewriter);
assertNotBuilt();
this.preRealmRewriter = rewriter;
return this;
}
/**
* Sets a post-realm name rewriter, which rewrites the authentication name after a realm is selected.
*
* @param rewriter the name rewriter (must not be {@code null})
* @return this builder
*/
public Builder setPostRealmRewriter(NameRewriter rewriter) {
return setPostRealmRewriter(rewriter.asPrincipalRewriter());
}
/**
* Sets a post-realm name rewriter, which rewrites the authentication name after a realm is selected.
*
* @param rewriter the name rewriter (must not be {@code null})
* @return this builder
*/
public Builder setPostRealmRewriter(Function rewriter) {
Assert.checkNotNullParam("rewriter", rewriter);
assertNotBuilt();
this.postRealmRewriter = rewriter;
return this;
}
/**
* Set the realm mapper for this security domain, which selects a realm based on the authentication name.
*
* @param realmMapper the realm mapper (must not be {@code null})
* @return this builder
*/
public Builder setRealmMapper(RealmMapper realmMapper) {
Assert.checkNotNullParam("realmMapper", realmMapper);
assertNotBuilt();
this.realmMapper = realmMapper;
return this;
}
/**
* Set the role mapper for this security domain, which will be used to perform the last mapping before
* returning the roles associated with an identity obtained from this security domain.
*
* @param roleMapper the role mapper (must not be {@code null})
* @return this builder
*/
public Builder setRoleMapper(RoleMapper roleMapper) {
Assert.checkNotNullParam("roleMapper", roleMapper);
assertNotBuilt();
this.roleMapper = roleMapper;
return this;
}
/**
* Set the permission mapper for this security domain, which will be used to obtain and map permissions based on the
* identities from this security domain.
*
* @param permissionMapper the permission mapper (must not be {@code null})
* @return this builder
*/
public Builder setPermissionMapper(PermissionMapper permissionMapper) {
Assert.checkNotNullParam("permissionMapper", permissionMapper);
assertNotBuilt();
this.permissionMapper = permissionMapper;
return this;
}
/**
* Set the principal decoder for this security domain, which will be used to convert {@link Principal} objects
* into names for handling in the realm.
*
* @param principalDecoder the principal decoder (must not be {@code null})
* @return this builder
*/
public Builder setPrincipalDecoder(PrincipalDecoder principalDecoder) {
Assert.checkNotNullParam("principalDecoder", principalDecoder);
assertNotBuilt();
this.principalDecoder = principalDecoder.asPrincipalRewriter();
return this;
}
/**
* Add a realm to this security domain.
*
* @param name the realm's name in this configuration
* @param realm the realm
* @return the new realm builder
*/
public RealmBuilder addRealm(String name, SecurityRealm realm) {
Assert.checkNotNullParam("name", name);
Assert.checkNotNullParam("realm", realm);
assertNotBuilt();
return new RealmBuilder(this, name, realm);
}
Builder addRealm(RealmBuilder realmBuilder) {
realms.put(realmBuilder.getName(), realmBuilder);
return this;
}
/**
* Get the default realm name.
*
* @return the default realm name
*/
public String getDefaultRealmName() {
return defaultRealmName;
}
/**
* Set the default realm name.
*
* @param defaultRealmName the default realm name (must not be {@code null})
*/
public Builder setDefaultRealmName(final String defaultRealmName) {
Assert.checkNotNullParam("defaultRealmName", defaultRealmName);
assertNotBuilt();
this.defaultRealmName = defaultRealmName;
return this;
}
/**
* Get the category role mapper map.
*
* @return the category role mapper map
*/
public Map getCategoryRoleMappers() {
return categoryRoleMappers;
}
/**
* Set the category role mapper map.
*
* @param categoryRoleMappers the category role mapper map (must not be {@code null})
*/
public void setCategoryRoleMappers(final Map categoryRoleMappers) {
Assert.checkNotNullParam("categoryRoleMappers", categoryRoleMappers);
this.categoryRoleMappers = categoryRoleMappers;
}
/**
* Set the security identity transformer to use. The transformer must not return {@code null}, or authentication
* will fail.
*
* @param securityIdentityTransformer the security identity transformer to use (must not be {@code null})
* @return this builder
*/
public Builder setSecurityIdentityTransformer(UnaryOperator securityIdentityTransformer) {
Assert.checkNotNullParam("securityIdentityTransformer", securityIdentityTransformer);
this.securityIdentityTransformer = securityIdentityTransformer;
return this;
}
/**
* Set the predicate that should be used to determine if a given domain is trusted by this domain.
*
* @param trustedSecurityDomain the predicate that should be used to determine if a given domain is
* trusted by this domain (must not be {@code null})
*/
public Builder setTrustedSecurityDomainPredicate(final Predicate trustedSecurityDomain) {
Assert.checkNotNullParam("trustedSecurityDomain", trustedSecurityDomain);
this.trustedSecurityDomain = trustedSecurityDomain;
return this;
}
/**
* Set the security event listener that will consume all {@link SecurityEvent} instances emitted but the domain.
*
* @param securityEventListener the security event listener that will consume all {@link SecurityEvent} instances emitted but the domain.
* @return this builder
*/
public Builder setSecurityEventListener(final Consumer securityEventListener) {
this.securityEventListener = Assert.checkNotNullParam("securityEventListener", securityEventListener);
return this;
}
/**
* Set the evidence decoder for this security domain which will be used to extract the principal from the given
* {@link Evidence}.
*
* @param evidenceDecoder the evidence decoder (must not be {@code null})
* @return this builder
* @since 1.10.0
*/
public Builder setEvidenceDecoder(EvidenceDecoder evidenceDecoder) {
Assert.checkNotNullParam("evidenceDecoder", evidenceDecoder);
assertNotBuilt();
this.evidenceDecoder = evidenceDecoder;
return this;
}
/**
* Set the role decoder for this security domain.
*
* @param roleDecoder the role decoder (must not be {@code null})
* @return this builder
* @since 1.11.0
*/
public Builder setRoleDecoder(RoleDecoder roleDecoder) {
Assert.checkNotNullParam("roleDecoder", roleDecoder);
assertNotBuilt();
this.roleDecoder = roleDecoder;
return this;
}
/**
* Construct this security domain.
*
* Construction requires {@code createSecurityDomain} {@link ElytronPermission}.
*
* @return the new security domain
*/
public SecurityDomain build() {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(CREATE_SECURITY_DOMAIN);
}
final LinkedHashMap realmMap = new LinkedHashMap<>(realms.size());
for (RealmBuilder realmBuilder : realms.values()) {
realmMap.put(realmBuilder.getName(), new RealmInfo(realmBuilder));
}
if (defaultRealmName != null && !realmMap.containsKey(defaultRealmName)) {
throw log.realmMapDoesNotContainDefault(defaultRealmName);
}
assertNotBuilt();
built = true;
if(log.isTraceEnabled()) {
log.tracef("Building security domain with defaultRealmName %s.", defaultRealmName);
if(realmMap.size() > 1) {
log.tracef("The following additional realms were added: %s.", realmMap.keySet().toString());
}
}
return new SecurityDomain(this, realmMap);
}
void assertNotBuilt() {
if (built) {
throw log.builderAlreadyBuilt();
}
}
}
/**
* A builder for a realm within a security domain.
*/
public static class RealmBuilder {
private final Builder parent;
private final String name;
private final SecurityRealm realm;
private RoleMapper roleMapper = RoleMapper.IDENTITY_ROLE_MAPPER;
private Function principalRewriter = Function.identity();
private RoleDecoder roleDecoder = RoleDecoder.DEFAULT;
private boolean built = false;
RealmBuilder(final Builder parent, final String name, final SecurityRealm realm) {
this.parent = parent;
this.name = name;
this.realm = realm;
}
/**
* Get the realm name.
*
* @return the realm name (not {@code null})
*/
public String getName() {
return name;
}
/**
* Get the security realm.
*
* @return the security realm (not {@code null})
*/
public SecurityRealm getRealm() {
return realm;
}
/**
* Get the role mapper.
*
* @return the role mapper (not {@code null})
*/
public RoleMapper getRoleMapper() {
return roleMapper;
}
/**
* Set the role mapper.
*
* @param roleMapper the role mapper (may not be {@code null})
*/
public RealmBuilder setRoleMapper(final RoleMapper roleMapper) {
assertNotBuilt();
Assert.checkNotNullParam("roleMapper", roleMapper);
this.roleMapper = roleMapper;
return this;
}
/**
* Get the name rewriter.
*
* @return the name rewriter (not {@code null})
*/
public Function getPrincipalRewriter() {
return principalRewriter;
}
/**
* Set the name rewriter.
*
* @param principalRewriter the name rewriter (may not be {@code null})
*/
public RealmBuilder setPrincipalRewriter(final Function principalRewriter) {
Assert.checkNotNullParam("principalRewriter", principalRewriter);
assertNotBuilt();
this.principalRewriter = principalRewriter;
return this;
}
@Deprecated
public RealmBuilder setNameRewriter(final NameRewriter nameRewriter) {
return setPrincipalRewriter(nameRewriter.asPrincipalRewriter());
}
/**
* Get the role decoder.
*
* @return the role decoder (not {@code null})
*/
public RoleDecoder getRoleDecoder() {
return roleDecoder;
}
/**
* Set the role decoder.
*
* @param roleDecoder the role decoder (may not be {@code null})
*/
public RealmBuilder setRoleDecoder(final RoleDecoder roleDecoder) {
Assert.checkNotNullParam("roleDecoder", roleDecoder);
assertNotBuilt();
this.roleDecoder = roleDecoder;
return this;
}
/**
* Constructs this realm info and adds it into the domain.
*
* @return the security domain builder
*/
public Builder build() {
assertNotBuilt();
return parent.addRealm(this);
}
private void assertNotBuilt() {
parent.assertNotBuilt();
if (built) {
throw log.builderAlreadyBuilt();
}
}
}
private static class ScheduledExecutorServiceProvider {
private static final ScheduledThreadPoolExecutor INSTANCE = new ScheduledThreadPoolExecutor(1, runnable -> {
// use daemon thread
Thread thread = Executors.defaultThreadFactory().newThread(runnable);
thread.setDaemon(true);
return thread;
});
static {
INSTANCE.setRemoveOnCancelPolicy(true);
INSTANCE.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
}
}
/**
* Gets {@link ScheduledExecutorService} for authentication related scheduled task (like authentication timeout).
*
* @return the executor service
*/
public static ScheduledExecutorService getScheduledExecutorService() {
return ScheduledExecutorServiceProvider.INSTANCE;
}
}
