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markt-asf pushed a commit to branch 10.1.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git
The following commit(s) were added to refs/heads/10.1.x by this push:
new 4b38ba8964 Fix BZ 72003. Correct RegistrationListener notifications
4b38ba8964 is described below
commit 4b38ba89645ec8e4ea0d90c647499332c04227d9
Author: Mark Thomas <[email protected]>
AuthorDate: Fri Sep 4 14:49:51 2026 +0100
Fix BZ 72003. Correct RegistrationListener notifications
---
.../jaspic/AuthConfigFactoryImpl.java | 456 +++++++++++----------
webapps/docs/changelog.xml | 4 +
2 files changed, 233 insertions(+), 227 deletions(-)
diff --git
a/java/org/apache/catalina/authenticator/jaspic/AuthConfigFactoryImpl.java
b/java/org/apache/catalina/authenticator/jaspic/AuthConfigFactoryImpl.java
index f1bcaaef3a..44e71b339d 100644
--- a/java/org/apache/catalina/authenticator/jaspic/AuthConfigFactoryImpl.java
+++ b/java/org/apache/catalina/authenticator/jaspic/AuthConfigFactoryImpl.java
@@ -21,11 +21,13 @@ import java.lang.reflect.Constructor;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.Set;
+import java.util.concurrent.locks.ReentrantLock;
import javax.security.auth.Subject;
import javax.security.auth.callback.CallbackHandler;
@@ -67,12 +69,10 @@ public class AuthConfigFactoryImpl extends
AuthConfigFactory {
private static final String DEFAULT_REGISTRATION_ID =
getRegistrationID(null, null);
- private final Map<String,RegistrationContextImpl>
layerAppContextRegistrations = new ConcurrentHashMap<>();
- private final Map<String,RegistrationContextImpl> appContextRegistrations
= new ConcurrentHashMap<>();
- private final Map<String,RegistrationContextImpl> layerRegistrations = new
ConcurrentHashMap<>();
- // Note: Although there will only ever be a maximum of one entry in this
- // Map, use a ConcurrentHashMap for consistency
- private final Map<String,RegistrationContextImpl> defaultRegistration =
new ConcurrentHashMap<>(1);
+ private final ReentrantLock registrationLock = new ReentrantLock();
+ private final Map<String,RegistrationContextImpl>
registrationToRegistrationContextMap = new HashMap<>();
+ private final Map<String,Set<RegistrationListenerWrapper>>
registrationToWrappersMap = new HashMap<>();
+ private final Map<RegistrationListenerWrapper,Set<String>>
wrapperToRegistrationsMap = new HashMap<>();
/**
@@ -85,29 +85,79 @@ public class AuthConfigFactoryImpl extends
AuthConfigFactory {
@Override
public AuthConfigProvider getConfigProvider(String layer, String
appContext, RegistrationListener listener) {
- RegistrationContextImpl registrationContext =
findRegistrationContextImpl(layer, appContext);
- if (registrationContext != null) {
- if (listener != null) {
- RegistrationListenerWrapper wrapper = new
RegistrationListenerWrapper(layer, appContext, listener);
- registrationContext.addListener(wrapper);
+ RegistrationListenerWrapper wrapper;
+ if (listener == null) {
+ wrapper = null;
+ } else {
+ wrapper = new RegistrationListenerWrapper(layer, appContext,
listener);
+ }
+ RegistrationContextImpl registrationContext;
+
+ registrationLock.lock();
+ try {
+ // First check for a layer and appContext match
+ String fullID = getRegistrationID(layer, appContext);
+ registerWrapper(wrapper, fullID);
+ registrationContext =
registrationToRegistrationContextMap.get(fullID);
+
+ if (registrationContext == null) {
+ String appContextID = getRegistrationID(null, appContext);
+ registerWrapper(wrapper, appContextID);
+ registrationContext =
registrationToRegistrationContextMap.get(appContextID);
}
+ if (registrationContext == null) {
+ String layerID = getRegistrationID(layer, null);
+ registerWrapper(wrapper, layerID);
+ registrationContext =
registrationToRegistrationContextMap.get(layerID);
+ }
+ if (registrationContext == null) {
+ registerWrapper(wrapper, DEFAULT_REGISTRATION_ID);
+ registrationContext =
registrationToRegistrationContextMap.get(DEFAULT_REGISTRATION_ID);
+ }
+ } finally {
+ registrationLock.unlock();
+ }
+
+ if (registrationContext != null) {
return registrationContext.getProvider();
}
return null;
}
+ private void registerWrapper(RegistrationListenerWrapper wrapper, String
registrationID) {
+ if (wrapper != null) {
+ Set<RegistrationListenerWrapper> wrappersForRegistrationID =
+ registrationToWrappersMap.computeIfAbsent(registrationID,
s -> new HashSet<>());
+ wrappersForRegistrationID.add(wrapper);
+
+ Set<String> registrationIDsForWrapper =
+ wrapperToRegistrationsMap.computeIfAbsent(wrapper, w ->
new HashSet<>());
+ registrationIDsForWrapper.add(registrationID);
+ }
+ }
+
+
@Override
public String registerConfigProvider(String className, Map<String,String>
properties, String layer,
String appContext, String description) {
- String registrationID = doRegisterConfigProvider(className,
properties, layer, appContext, description);
- savePersistentRegistrations();
+ String registrationID;
+ Set<RegistrationListenerWrapper> wrappersToNotify = new HashSet<>();
+ registrationLock.lock();
+ try {
+ registrationID =
+ doRegisterConfigProvider(className, properties, layer,
appContext, description, wrappersToNotify);
+ savePersistentRegistrations();
+ } finally {
+ registrationLock.unlock();
+ notifyWrappers(wrappersToNotify);
+ }
return registrationID;
}
private String doRegisterConfigProvider(String className,
Map<String,String> properties, String layer,
- String appContext, String description) {
+ String appContext, String description,
Set<RegistrationListenerWrapper> wrappersToNotify) {
if (log.isDebugEnabled()) {
log.debug(sm.getString("authConfigFactoryImpl.registerClass",
className, layer, appContext));
}
@@ -120,7 +170,8 @@ public class AuthConfigFactoryImpl extends
AuthConfigFactory {
String registrationID = getRegistrationID(layer, appContext);
RegistrationContextImpl registrationContextImpl =
new RegistrationContextImpl(layer, appContext, description,
true, provider, properties);
- addRegistrationContextImpl(layer, appContext, registrationID,
registrationContextImpl);
+ addRegistrationContextImpl(registrationID, registrationContextImpl,
wrappersToNotify);
+
return registrationID;
}
@@ -157,164 +208,164 @@ public class AuthConfigFactoryImpl extends
AuthConfigFactory {
String registrationID = getRegistrationID(layer, appContext);
RegistrationContextImpl registrationContextImpl =
new RegistrationContextImpl(layer, appContext, description,
false, provider, null);
- addRegistrationContextImpl(layer, appContext, registrationID,
registrationContextImpl);
+
+ Set<RegistrationListenerWrapper> wrappersToNotify = new HashSet<>();
+ addRegistrationContextImpl(registrationID, registrationContextImpl,
wrappersToNotify);
+ notifyWrappers(wrappersToNotify);
+
return registrationID;
}
- private void addRegistrationContextImpl(String layer, String appContext,
String registrationID,
- RegistrationContextImpl registrationContextImpl) {
- RegistrationContextImpl previous;
+ /*
+ * Always notify outside of any locks to avoid potential deadlocks if the
notification is processed/actioned on a
+ * different thread.
+ */
+ private void notifyWrappers(Set<RegistrationListenerWrapper>
wrappersToNotify) {
+ for (RegistrationListenerWrapper wrapper : wrappersToNotify) {
+ wrapper.listener.notify(wrapper.messageLayer, wrapper.appContext);
+ }
+ }
- // Add the registration, noting any registration it replaces
- if (layer != null && appContext != null) {
- previous = layerAppContextRegistrations.put(registrationID,
registrationContextImpl);
- } else if (layer == null && appContext != null) {
- previous = appContextRegistrations.put(registrationID,
registrationContextImpl);
- } else if (layer != null) {
- previous = layerRegistrations.put(registrationID,
registrationContextImpl);
- } else {
- previous = defaultRegistration.put(registrationID,
registrationContextImpl);
- }
-
- if (previous == null) {
- // No match with previous registration so need to check listeners
- // for all less specific registrations to see if they need to be
- // notified of this new registration. That there is no exact match
- // with a previous registration allows a few short-cuts to be taken
- if (layer != null && appContext != null) {
- // Need to check existing appContext registrations
- // (and layer and default)
- // appContext must match
- RegistrationContextImpl registration =
appContextRegistrations.get(getRegistrationID(null, appContext));
- if (registration != null) {
- for (RegistrationListenerWrapper wrapper :
registration.listeners) {
- if (layer.equals(wrapper.getMessageLayer()) &&
appContext.equals(wrapper.getAppContext())) {
- registration.listeners.remove(wrapper);
- wrapper.listener.notify(wrapper.messageLayer,
wrapper.appContext);
- }
- }
- }
- }
- if (appContext != null) {
- // Need to check existing layer registrations
- // (and default)
- // Need to check registrations for all layers
- for (RegistrationContextImpl registration :
layerRegistrations.values()) {
- for (RegistrationListenerWrapper wrapper :
registration.listeners) {
- if (appContext.equals(wrapper.getAppContext())) {
- registration.listeners.remove(wrapper);
- wrapper.listener.notify(wrapper.messageLayer,
wrapper.appContext);
- }
- }
- }
- }
- if (layer != null || appContext != null) {
- // Need to check default
- for (RegistrationContextImpl registration :
defaultRegistration.values()) {
- for (RegistrationListenerWrapper wrapper :
registration.listeners) {
- if (appContext != null &&
appContext.equals(wrapper.getAppContext()) ||
- layer != null &&
layer.equals(wrapper.getMessageLayer())) {
- registration.listeners.remove(wrapper);
- wrapper.listener.notify(wrapper.messageLayer,
wrapper.appContext);
- }
+ private void addRegistrationContextImpl(String registrationID,
RegistrationContextImpl registrationContextImpl,
+ Set<RegistrationListenerWrapper> wrappersToNotify) {
+
+ registrationLock.lock();
+ try {
+ // Add the new registration
+ registrationToRegistrationContextMap.put(registrationID,
registrationContextImpl);
+
+
wrappersToNotify.addAll(detachListenersForRegistrationID(registrationID));
+ } finally {
+ registrationLock.unlock();
+ }
+ }
+
+
+ private Set<RegistrationListenerWrapper>
detachListenersForRegistrationID(String registrationID) {
+
+ Set<RegistrationListenerWrapper> wrappersToNotify = new HashSet<>();
+
+ // Check for listeners for this registration ID
+ Set<RegistrationListenerWrapper> wrappersForRegistrationID =
registrationToWrappersMap.get(registrationID);
+ if (wrappersForRegistrationID != null) {
+ wrappersToNotify.addAll(wrappersForRegistrationID);
+
+ // Detach each listener that was attached to this registration ID
+ for (RegistrationListenerWrapper wrapper : wrappersToNotify) {
+ // Find all the registrationIDs the listener was attached to
+ Set<String> listenerRegistrationIDs =
wrapperToRegistrationsMap.remove(wrapper);
+ // Remove the listener from each of the registrationIDs to
which it was attached
+ for (String listenerRegistrationID : listenerRegistrationIDs) {
+
registrationToWrappersMap.get(listenerRegistrationID).remove(wrapper);
+ if
(registrationToWrappersMap.get(listenerRegistrationID).isEmpty()) {
+
registrationToWrappersMap.remove(listenerRegistrationID);
}
}
}
- } else {
- // Replaced an existing registration so need to notify those
listeners
- for (RegistrationListenerWrapper wrapper : previous.listeners) {
- previous.listeners.remove(wrapper);
- wrapper.listener.notify(wrapper.messageLayer,
wrapper.appContext);
- }
}
+
+ return wrappersToNotify;
}
@Override
public boolean removeRegistration(String registrationID) {
- RegistrationContextImpl registration = null;
- if (DEFAULT_REGISTRATION_ID.equals(registrationID)) {
- registration = defaultRegistration.remove(registrationID);
- }
- if (registration == null) {
- registration = layerAppContextRegistrations.remove(registrationID);
- }
- if (registration == null) {
- registration = appContextRegistrations.remove(registrationID);
- }
- if (registration == null) {
- registration = layerRegistrations.remove(registrationID);
- }
- if (registration == null) {
- return false;
- } else {
- for (RegistrationListenerWrapper wrapper : registration.listeners)
{
- wrapper.getListener().notify(wrapper.getMessageLayer(),
wrapper.getAppContext());
+ RegistrationContextImpl registration;
+ Set<RegistrationListenerWrapper> wrappersToNotify = new HashSet<>();
+
+ registrationLock.lock();
+ try {
+ registration =
registrationToRegistrationContextMap.remove(registrationID);
+ if (registration != null) {
+
wrappersToNotify.addAll(detachListenersForRegistrationID(registrationID));
}
- if (registration.isPersistent()) {
+ if (registration != null && registration.isPersistent()) {
savePersistentRegistrations();
}
- return true;
+ } finally {
+ registrationLock.unlock();
+ notifyWrappers(wrappersToNotify);
}
+
+ return registration != null;
}
@Override
public String[] detachListener(RegistrationListener listener, String
layer, String appContext) {
- String registrationID = getRegistrationID(layer, appContext);
- RegistrationContextImpl registrationContext =
findRegistrationContextImpl(layer, appContext);
- if (registrationContext != null &&
registrationContext.removeListener(listener)) {
- return new String[] { registrationID };
+ List<String> results = new ArrayList<>();
+
+ // Validate the inputs
+ getRegistrationID(layer, appContext);
+ if (listener == null) {
+ return results.toArray(EMPTY_STRING_ARRAY);
}
- return EMPTY_STRING_ARRAY;
+
+ registrationLock.lock();
+ try {
+ /*
+ * The listener may have been attached multiple times under
different combinations of layer and appContext.
+ * Each combination of listener, layer and appContext is
represented by a Wrapper. The detach call may match
+ * more than one wrapper if the values passed in for layer and/or
appContext are left as null.
+ *
+ * Iterate over all the wrappers to check for matches.
+ */
+ Iterator<Map.Entry<RegistrationListenerWrapper,Set<String>>> iter =
+ wrapperToRegistrationsMap.entrySet().iterator();
+ while (iter.hasNext()) {
+ Map.Entry<RegistrationListenerWrapper,Set<String>> entry =
iter.next();
+ RegistrationListenerWrapper wrapper = entry.getKey();
+ if (listener.equals(wrapper.listener) && (layer == null ||
layer.equals(wrapper.messageLayer)) &&
+ (appContext == null ||
appContext.equals(wrapper.appContext))) {
+ // The wrapper matches. Add the original registration ID
to the results.
+ results.add(getRegistrationID(wrapper.messageLayer,
wrapper.appContext));
+ // The wrapper may have been attached to multiple
registration IDs. Remove them all.
+ for (String listenerRegistrationID : entry.getValue()) {
+
registrationToWrappersMap.get(listenerRegistrationID).remove(wrapper);
+ if
(registrationToWrappersMap.get(listenerRegistrationID).isEmpty()) {
+
registrationToWrappersMap.remove(listenerRegistrationID);
+ }
+ }
+ iter.remove();
+ }
+ }
+ } finally {
+ registrationLock.unlock();
+ }
+
+ return results.toArray(EMPTY_STRING_ARRAY);
}
@Override
public String[] getRegistrationIDs(AuthConfigProvider provider) {
List<String> result = new ArrayList<>();
- if (provider == null) {
- result.addAll(layerAppContextRegistrations.keySet());
- result.addAll(appContextRegistrations.keySet());
- result.addAll(layerRegistrations.keySet());
- if (!defaultRegistration.isEmpty()) {
- result.add(DEFAULT_REGISTRATION_ID);
- }
- } else {
- findProvider(provider, layerAppContextRegistrations, result);
- findProvider(provider, appContextRegistrations, result);
- findProvider(provider, layerRegistrations, result);
- findProvider(provider, defaultRegistration, result);
- }
- return result.toArray(EMPTY_STRING_ARRAY);
- }
-
- private void findProvider(AuthConfigProvider provider,
Map<String,RegistrationContextImpl> registrations,
- List<String> result) {
- for (Entry<String,RegistrationContextImpl> entry :
registrations.entrySet()) {
- if (provider.equals(entry.getValue().getProvider())) {
- result.add(entry.getKey());
+ registrationLock.lock();
+ try {
+ for (Entry<String,RegistrationContextImpl> entry :
registrationToRegistrationContextMap.entrySet()) {
+ if (provider == null ||
provider.equals(entry.getValue().getProvider())) {
+ result.add(entry.getKey());
+ }
}
+ } finally {
+ registrationLock.unlock();
}
+
+ return result.toArray(EMPTY_STRING_ARRAY);
}
@Override
public RegistrationContext getRegistrationContext(String registrationID) {
- RegistrationContext result = defaultRegistration.get(registrationID);
- if (result == null) {
- result = layerAppContextRegistrations.get(registrationID);
- }
- if (result == null) {
- result = appContextRegistrations.get(registrationID);
- }
- if (result == null) {
- result = layerRegistrations.get(registrationID);
+ registrationLock.lock();
+ try {
+ return registrationToRegistrationContextMap.get(registrationID);
+ } finally {
+ registrationLock.unlock();
}
- return result;
}
@@ -378,71 +429,57 @@ public class AuthConfigFactoryImpl extends
AuthConfigFactory {
private void loadPersistentRegistrations() {
- synchronized (CONFIG_FILE_LOCK) {
- if (log.isDebugEnabled()) {
- log.debug(sm.getString("authConfigFactoryImpl.load",
CONFIG_FILE.getAbsolutePath()));
- }
- if (!CONFIG_FILE.isFile()) {
- return;
- }
- Providers providers =
PersistentProviderRegistrations.loadProviders(CONFIG_FILE);
- for (Provider provider : providers.getProviders()) {
- doRegisterConfigProvider(provider.getClassName(),
provider.getProperties(), provider.getLayer(),
- provider.getAppContext(), provider.getDescription());
+ // To avoid deadlock, always obtain registrationLock then
CONFIG_FILE_LOCK
+ Set<RegistrationListenerWrapper> wrappersToNotify = new HashSet<>();
+ registrationLock.lock();
+ try {
+ synchronized (CONFIG_FILE_LOCK) {
+ if (log.isDebugEnabled()) {
+ log.debug(sm.getString("authConfigFactoryImpl.load",
CONFIG_FILE.getAbsolutePath()));
+ }
+ if (!CONFIG_FILE.isFile()) {
+ return;
+ }
+ Providers providers =
PersistentProviderRegistrations.loadProviders(CONFIG_FILE);
+ for (Provider provider : providers.getProviders()) {
+ doRegisterConfigProvider(provider.getClassName(),
provider.getProperties(), provider.getLayer(),
+ provider.getAppContext(),
provider.getDescription(), wrappersToNotify);
+ }
}
+ } finally {
+ registrationLock.unlock();
+ notifyWrappers(wrappersToNotify);
}
}
private void savePersistentRegistrations() {
- synchronized (CONFIG_FILE_LOCK) {
- Providers providers = new Providers();
- savePersistentProviders(providers, layerAppContextRegistrations);
- savePersistentProviders(providers, appContextRegistrations);
- savePersistentProviders(providers, layerRegistrations);
- savePersistentProviders(providers, defaultRegistration);
- PersistentProviderRegistrations.writeProviders(providers,
CONFIG_FILE);
- }
- }
-
-
- private void savePersistentProviders(Providers providers,
Map<String,RegistrationContextImpl> registrations) {
- for (Entry<String,RegistrationContextImpl> entry :
registrations.entrySet()) {
- savePersistentProvider(providers, entry.getValue());
- }
- }
-
-
- private void savePersistentProvider(Providers providers,
RegistrationContextImpl registrationContextImpl) {
- if (registrationContextImpl != null &&
registrationContextImpl.isPersistent()) {
- Provider provider = new Provider();
- provider.setAppContext(registrationContextImpl.getAppContext());
- if (registrationContextImpl.getProvider() != null) {
-
provider.setClassName(registrationContextImpl.getProvider().getClass().getName());
- }
- provider.setDescription(registrationContextImpl.getDescription());
- provider.setLayer(registrationContextImpl.getMessageLayer());
- for (Entry<String,String> property :
registrationContextImpl.getProperties().entrySet()) {
- provider.addProperty(property.getKey(), property.getValue());
+ // To avoid deadlock, always obtain registrationLock then
CONFIG_FILE_LOCK
+ registrationLock.lock();
+ try {
+ synchronized (CONFIG_FILE_LOCK) {
+ Providers providers = new Providers();
+ for (Entry<String,RegistrationContextImpl> entry :
registrationToRegistrationContextMap.entrySet()) {
+ RegistrationContextImpl registrationContextImpl =
entry.getValue();
+ if (registrationContextImpl != null &&
registrationContextImpl.isPersistent()) {
+ Provider provider = new Provider();
+
provider.setAppContext(registrationContextImpl.getAppContext());
+ if (registrationContextImpl.getProvider() != null) {
+
provider.setClassName(registrationContextImpl.getProvider().getClass().getName());
+ }
+
provider.setDescription(registrationContextImpl.getDescription());
+
provider.setLayer(registrationContextImpl.getMessageLayer());
+ for (Entry<String,String> property :
registrationContextImpl.getProperties().entrySet()) {
+ provider.addProperty(property.getKey(),
property.getValue());
+ }
+ providers.addProvider(provider);
+ }
+ }
+ PersistentProviderRegistrations.writeProviders(providers,
CONFIG_FILE);
}
- providers.addProvider(provider);
- }
- }
-
-
- private RegistrationContextImpl findRegistrationContextImpl(String layer,
String appContext) {
- RegistrationContextImpl result;
- result = layerAppContextRegistrations.get(getRegistrationID(layer,
appContext));
- if (result == null) {
- result = appContextRegistrations.get(getRegistrationID(null,
appContext));
+ } finally {
+ registrationLock.unlock();
}
- if (result == null) {
- result = layerRegistrations.get(getRegistrationID(layer, null));
- }
- if (result == null) {
- result = defaultRegistration.get(DEFAULT_REGISTRATION_ID);
- }
- return result;
}
@@ -468,7 +505,6 @@ public class AuthConfigFactoryImpl extends
AuthConfigFactory {
private final boolean persistent;
private final AuthConfigProvider provider;
private final Map<String,String> properties;
- private final List<RegistrationListenerWrapper> listeners = new
CopyOnWriteArrayList<>();
@Override
public String getMessageLayer() {
@@ -498,28 +534,9 @@ public class AuthConfigFactoryImpl extends
AuthConfigFactory {
}
- private void addListener(RegistrationListenerWrapper listener) {
- if (listener != null) {
- listeners.add(listener);
- }
- }
-
-
private Map<String,String> getProperties() {
return properties;
}
-
-
- private boolean removeListener(RegistrationListener listener) {
- boolean result = false;
- for (RegistrationListenerWrapper wrapper : listeners) {
- if (wrapper.getListener().equals(listener)) {
- listeners.remove(wrapper);
- result = true;
- }
- }
- return result;
- }
}
@@ -535,21 +552,6 @@ public class AuthConfigFactoryImpl extends
AuthConfigFactory {
this.appContext = appContext;
this.listener = listener;
}
-
-
- public String getMessageLayer() {
- return messageLayer;
- }
-
-
- public String getAppContext() {
- return appContext;
- }
-
-
- public RegistrationListener getListener() {
- return listener;
- }
}
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index 5cb04ed9e4..caedf241be 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -177,6 +177,10 @@
valve. This ensures web application specific settings are cached on a
per web application basis. (markt)
</fix>
+ <fix>
+ <bug>70203</bug>: Fix <code>RegistrationListener</code> notifications
in
+ Jakarta Authentication implementation. (markt)
+ </fix>
</changelog>
</subsection>
<subsection name="Coyote">
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