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/*******************************************************************************
* Copyright (c) 2005, 2018 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.security.auth;
import java.util.Hashtable;
import javax.security.auth.login.AppConfigurationEntry;
import javax.security.auth.login.Configuration;
import org.eclipse.equinox.internal.security.auth.nls.SecAuthMessages;
import org.eclipse.osgi.util.NLS;
public class ConfigurationFederator extends Configuration {
// TODO this usage needs to be changed. We should retrieve federatedConfigs
// from the "ConfigurationFactory" every time we are asked; the "ConfigurationFactory"
// shoudl keep a cache that corresponds to what's in the registry and update it on registry
// events
private Configuration[] federatedConfigs = null;
private Hashtable<String, AppConfigurationEntry[]> configCache = new Hashtable<>(5);
private Hashtable<String, String> configToProviderMap = new Hashtable<>(5);
final private Configuration defaultConfiguration;
public ConfigurationFederator(Configuration defaultConfiguration) {
this.defaultConfiguration = defaultConfiguration;
}
@Override
public synchronized AppConfigurationEntry[] getAppConfigurationEntry(String name) {
AppConfigurationEntry[] returnValue = configCache.get(name);
if (returnValue != null)
return returnValue;
// Note: adding default config provider last; extension-point based configs are queried first
Configuration[] configs = getFederatedConfigs();
Configuration[] allConfigs = configs;
if (defaultConfiguration != null) {
allConfigs = new Configuration[configs.length + 1];
System.arraycopy(configs, 0, allConfigs, 0, configs.length);
allConfigs[configs.length] = defaultConfiguration;
}
for (int i = 0; i < allConfigs.length; i++) {
boolean found = false;
AppConfigurationEntry[] config = allConfigs[i].getAppConfigurationEntry(name);
if (config == null)
continue;
String cachedProviderName = configToProviderMap.get(name);
if (cachedProviderName != null && !cachedProviderName.equals(allConfigs[i].getClass().getName())) {
String message = NLS.bind(SecAuthMessages.duplicateJaasConfig1, name, cachedProviderName);
AuthPlugin.getDefault().logError(message, null);
} else {
if (found) {
String message = NLS.bind(SecAuthMessages.duplicateJaasConfig2, name, cachedProviderName);
AuthPlugin.getDefault().logError(message, null);
} else if ((config != null) && (config.length != 0)) {
returnValue = config;
configToProviderMap.put(name, allConfigs[i].getClass().getName());
configCache.put(name, returnValue);
found = true;
}
}
}
if (returnValue == null || returnValue.length == 0) {
String message = NLS.bind(SecAuthMessages.nonExistantJaasConfig, name);
AuthPlugin.getDefault().logError(message, null);
}
return returnValue;
}
@Override
public synchronized void refresh() {
for (int i = 0; i < federatedConfigs.length; i++)
federatedConfigs[i].refresh();
if (defaultConfiguration != null)
defaultConfiguration.refresh();
configCache.clear();
configToProviderMap.clear();
}
private Configuration[] getFederatedConfigs() {
if (federatedConfigs == null)
federatedConfigs = ConfigurationFactory.getInstance().getConfigurations();
return federatedConfigs;
}
}
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