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Preserve `forceExecution` flag when forking off handler threads after authentication (elastic/elasticsearch#4706) 

Today we might get a rejection on a critical operation where `forceExecution=true` but
due to the fact that the forceExecution flag is not passed to the transport interceptor
interface we were not able to preserve this flag when forking off the request after authentication.
This causes serious issues if for instance a replication handler is rejected.

Closes elastic/elasticsearch#4704

Original commit: elastic/x-pack-elasticsearch@f0aad7dede
This commit is contained in:
Simon Willnauer 2017-01-23 11:07:36 +01:00 committed by GitHub
parent 9005e9fdb9
commit b6703c1515
3 changed files with 58 additions and 34 deletions
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3
elasticsearch/src/main/java/org/elasticsearch/xpack/security/Security.java
View File

@ -704,9 +704,10 @@ public class Security implements ActionPlugin, IngestPlugin, NetworkPlugin {
return Collections.singletonList(new TransportInterceptor() {
@Override
public <T extends TransportRequest> TransportRequestHandler<T> interceptHandler(String action, String executor,
boolean forceExecution,
TransportRequestHandler<T> actualHandler) {
assert securityInterceptor.get() != null;
return securityInterceptor.get().interceptHandler(action, executor, actualHandler);
return securityInterceptor.get().interceptHandler(action, executor, forceExecution, actualHandler);
}
@Override

50
elasticsearch/src/main/java/org/elasticsearch/xpack/security/transport/SecurityServerTransportInterceptor.java
View File

@ -10,6 +10,7 @@ import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.DestructiveOperations;
import org.elasticsearch.common.CheckedConsumer;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.util.concurrent.AbstractRunnable;
import org.elasticsearch.common.util.concurrent.ThreadContext;
import org.elasticsearch.license.XPackLicenseState;
import org.elasticsearch.tasks.Task;
@ -43,7 +44,6 @@ import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.Executor;
import java.util.function.Consumer;
import static org.elasticsearch.xpack.XPackSettings.TRANSPORT_SSL_ENABLED;
import static org.elasticsearch.xpack.security.Security.setting;
@ -129,8 +129,9 @@ public class SecurityServerTransportInterceptor implements TransportInterceptor
@Override
public <T extends TransportRequest> TransportRequestHandler<T> interceptHandler(String action, String executor,
boolean forceExecution,
TransportRequestHandler<T> actualHandler) {
return new ProfileSecuredRequestHandler<>(action, executor, actualHandler, profileFilters,
return new ProfileSecuredRequestHandler<>(action, forceExecution, executor, actualHandler, profileFilters,
licenseState, threadPool);
}
@ -179,9 +180,10 @@ public class SecurityServerTransportInterceptor implements TransportInterceptor
private final ThreadContext threadContext;
private final String executorName;
private final ThreadPool threadPool;
private final boolean forceExecution;
private ProfileSecuredRequestHandler(String action, String executorName, TransportRequestHandler<T> handler,
Map<String,ServerTransportFilter> profileFilters, XPackLicenseState licenseState,
ProfileSecuredRequestHandler(String action, boolean forceExecution, String executorName, TransportRequestHandler<T> handler,
Map<String, ServerTransportFilter> profileFilters, XPackLicenseState licenseState,
ThreadPool threadPool) {
this.action = action;
this.executorName = executorName;
@ -190,30 +192,52 @@ public class SecurityServerTransportInterceptor implements TransportInterceptor
this.licenseState = licenseState;
this.threadContext = threadPool.getThreadContext();
this.threadPool = threadPool;
this.forceExecution = forceExecution;
}
AbstractRunnable getReceiveRunnable(T request, TransportChannel channel, Task task) {
return new AbstractRunnable() {
@Override
public boolean isForceExecution() {
return forceExecution;
}
@Override
public void messageReceived(T request, TransportChannel channel, Task task) throws Exception {
final Consumer<Exception> onFailure = (e) -> {
public void onFailure(Exception e) {
try {
channel.sendResponse(e);
} catch (IOException e1) {
throw new UncheckedIOException(e1);
}
};
final Runnable receiveMessage = () -> {
}
@Override
protected void doRun() throws Exception {
// FIXME we should remove the RequestContext completely since we have ThreadContext but cannot yet due to
// the query cache
RequestContext context = new RequestContext(request, threadContext);
RequestContext.setCurrent(context);
try {
handler.messageReceived(request, channel, task);
} catch (Exception e) {
onFailure.accept(e);
} finally {
RequestContext.removeCurrent();
}
}
};
}
@Override
public String toString() {
return "ProfileSecuredRequestHandler{" +
"action='" + action + '\'' +
", executorName='" + executorName + '\'' +
", forceExecution=" + forceExecution +
'}';
}
@Override
public void messageReceived(T request, TransportChannel channel, Task task) throws Exception {
final AbstractRunnable receiveMessage = getReceiveRunnable(request, channel, task);
try (ThreadContext.StoredContext ctx = threadContext.newStoredContext(true)) {
if (licenseState.isAuthAllowed()) {
String profile = channel.getProfileName();
@ -248,17 +272,15 @@ public class SecurityServerTransportInterceptor implements TransportInterceptor
try {
executor.execute(receiveMessage);
} catch (Exception e) {
onFailure.accept(e);
receiveMessage.onFailure(e);
}
};
ActionListener<Void> filterListener = ActionListener.wrap(consumer, onFailure);
ActionListener<Void> filterListener = ActionListener.wrap(consumer, receiveMessage::onFailure);
filter.inbound(action, request, channel, filterListener);
} else {
receiveMessage.run();
}
} catch (Exception e) {
channel.sendResponse(e);
}
}

9
elasticsearch/src/test/java/org/elasticsearch/transport/SecurityServerTransportServiceTests.java
View File

@ -38,12 +38,13 @@ public class SecurityServerTransportServiceTests extends SecurityIntegTestCase {
public void testSecurityServerTransportServiceWrapsAllHandlers() {
for (TransportService transportService : internalCluster().getInstances(TransportService.class)) {
for (Map.Entry<String, RequestHandlerRegistry> entry : transportService.requestHandlers.entrySet()) {
assertThat(
RequestHandlerRegistry handler = entry.getValue();
assertEquals(
"handler not wrapped by " + SecurityServerTransportInterceptor.ProfileSecuredRequestHandler.class +
"; do all the handler registration methods have overrides?",
entry.getValue().toString(),
startsWith(SecurityServerTransportInterceptor.ProfileSecuredRequestHandler.class.getName() + "@")
);
handler.toString(),
"ProfileSecuredRequestHandler{action='" + handler.getAction() + "', executorName='" + handler.getExecutor()
+ "', forceExecution=" + handler.isForceExecution() + "}");
}
}
}