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*
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* under the terms of the GNU Lesser General Public License as
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*
* This software is distributed in the hope that it will be useful,
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
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* License along with this software; if not, write to the Free
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package org.jboss.as.domain.management.security.auditlog;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.READ_RESOURCE_OPERATION;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.STEPS;
import java.net.InetAddress;
import org.jboss.as.controller.audit.SyslogAuditLogHandler.MessageTransfer;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.as.domain.management.audit.AuditLogHandlerResourceDefinition;
import org.jboss.as.domain.management.audit.SyslogAuditLogHandlerResourceDefinition;
import org.jboss.as.domain.management.audit.SyslogAuditLogProtocolResourceDefinition;
import org.jboss.dmr.ModelNode;
import org.junit.Assert;
import org.junit.Test;
/**
* Don't use core-model test for this. It does not support runtime, and more importantly for backwards compatibility the audit logger cannot be used
*
* @author: Kabir Khan
*/
public class AuditLogSyslogReconnectTestCase extends AbstractAuditLogHandlerTestCase {
public AuditLogSyslogReconnectTestCase() {
super(true, false);
}
@Test
public void testAutoReconnect() throws Exception {
final int timeoutSeconds = 2;
ModelNode op = createAddSyslogHandlerTcpOperation("syslog", "test-formatter", InetAddress.getByName("localhost"), SYSLOG_PORT, null, MessageTransfer.OCTET_COUNTING);
op.get(STEPS).asList().get(0).get(SyslogAuditLogHandlerResourceDefinition.MAX_FAILURE_COUNT.getName()).set(3);
op.get(STEPS).asList().get(1).get(SyslogAuditLogProtocolResourceDefinition.Tcp.RECONNECT_TIMEOUT.getName()).set(timeoutSeconds);
executeForResult(op);
SimpleSyslogServer server = SimpleSyslogServer.createTcp(SYSLOG_PORT, true);
executeForResult(createAddHandlerReferenceOperation("syslog"));
Assert.assertNotNull(server.receiveData());
try {
final ModelNode readResource = Util.createOperation(READ_RESOURCE_OPERATION, AUDIT_ADDR);
readResource.get(ModelDescriptionConstants.RECURSIVE).set(true);
readResource.get(ModelDescriptionConstants.INCLUDE_RUNTIME).set(true);
ModelNode result = executeForResult(readResource);
Assert.assertNotNull(server.receiveData());
checkHandlerRuntimeFailureMetrics(result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog"), 3, 0, false);
int failures = result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog").get(AuditLogHandlerResourceDefinition.FAILURE_COUNT.getName()).asInt();
server.close();
result = sendUntilFailure(readResource, failures);
checkHandlerRuntimeFailureMetrics(result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog"), 3, 1, false);
result = executeForResult(readResource);
checkHandlerRuntimeFailureMetrics(result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog"), 3, 2, false);
long before = System.currentTimeMillis();
result = executeForResult(readResource);
//syslog handler should be disabled after 3 failures
checkHandlerRuntimeFailureMetrics(result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog"), 3, 3, true);
//Still disabled
result = executeForResult(readResource);
if (System.currentTimeMillis() - before < timeoutSeconds * 1000) {
checkHandlerRuntimeFailureMetrics(result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog"), 3, 3, true);
}
Thread.sleep(timeoutSeconds * 1000 + 100);
//Past the timeout, its hould now attempt and fail to reconnect, failure counts should remain the same
result = executeForResult(readResource);
checkHandlerRuntimeFailureMetrics(result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog"), 3, 3, true);
result = executeForResult(readResource);
checkHandlerRuntimeFailureMetrics(result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog"), 3, 3, true);
SimpleSyslogServer oldServer = server;
server = SimpleSyslogServer.createTcp(SYSLOG_PORT, true);
Thread.sleep(timeoutSeconds * 1000 + 100);
result = executeForResult(readResource);
Assert.assertNotNull(server.receiveData());
//Although it should work again now, this read is what triggered it so the failure count will still be 3, and the handler disabled
checkHandlerRuntimeFailureMetrics(result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog"), 3, 3, true);
result = executeForResult(readResource);
Assert.assertNotNull(server.receiveData());
//Now that it is all working again, the failure count should be 0 and the handler enabled
checkHandlerRuntimeFailureMetrics(result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog"), 3, 0, false);
//Make sure that the old server has no messages
Assert.assertNull(oldServer.pollData());
} finally {
if (server != null) {
server.close();
}
}
}
private ModelNode sendUntilFailure(ModelNode readResource, int existingFailures) throws Exception{
//Since syslog does not have app-layer acks, the failure handling at the TCP layer when the remote socket is shut down is not immediate
//so we loop around a few times until it eventually fails.
//Some background information here:
// http://blog.gerhards.net/2008/04/on-unreliability-of-plain-tcp-syslog.html
// http://blog.gerhards.net/2008/05/why-you-cant-build-reliable-tcp.html
int expectedFailures = existingFailures + 1;
for (int i = 0 ; i < 1000 ; i++) {
ModelNode result = executeForResult(readResource);
if (expectedFailures == result.get(ModelDescriptionConstants.SYSLOG_HANDLER, "syslog").get(AuditLogHandlerResourceDefinition.FAILURE_COUNT.getName()).asInt()) {
System.out.println("Number of messages sent until the TCP buffer was full " + i);
return result;
}
}
throw new AssertionError("Failure count never got incremented");
}
}