/*
* JBoss, Home of Professional Open Source.
* Copyright 2017, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.wildfly.extension.undertow;
import io.undertow.attribute.ExchangeAttribute;
import io.undertow.predicate.Predicate;
import io.undertow.predicate.Predicates;
import io.undertow.server.HttpHandler;
import io.undertow.server.handlers.accesslog.AccessLogHandler;
import io.undertow.server.handlers.accesslog.AccessLogReceiver;
import io.undertow.server.handlers.accesslog.DefaultAccessLogReceiver;
import io.undertow.server.handlers.accesslog.ExtendedAccessLogParser;
import io.undertow.server.handlers.accesslog.JBossLoggingAccessLogReceiver;
import org.jboss.as.controller.services.path.PathManager;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import org.wildfly.extension.undertow.logging.UndertowLogger;
import org.xnio.IoUtils;
import org.xnio.XnioWorker;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
/**
* @author Tomaz Cerar (c) 2013 Red Hat Inc.
*/
class AccessLogService implements Service<AccessLogService> {
private final InjectedValue<Host> host = new InjectedValue<>();
protected final InjectedValue<XnioWorker> worker = new InjectedValue<>();
private final String pattern;
private final String path;
private final String pathRelativeTo;
private final String filePrefix;
private final String fileSuffix;
private final boolean rotate;
private final boolean useServerLog;
private final boolean extended;
private final Predicate predicate;
private volatile AccessLogReceiver logReceiver;
private PathManager.Callback.Handle callbackHandle;
private Path directory;
private ExchangeAttribute extendedPattern;
private final InjectedValue<PathManager> pathManager = new InjectedValue<PathManager>();
AccessLogService(String pattern, boolean extended, Predicate predicate) {
this.pattern = pattern;
this.extended = extended;
this.path = null;
this.pathRelativeTo = null;
this.filePrefix = null;
this.fileSuffix = null;
this.useServerLog = true;
this.rotate = false; //doesn't really matter
this.predicate = predicate == null ? Predicates.truePredicate() : predicate;
}
AccessLogService(String pattern, String path, String pathRelativeTo, String filePrefix, String fileSuffix, boolean rotate, boolean extended, Predicate predicate) {
this.pattern = pattern;
this.path = path;
this.pathRelativeTo = pathRelativeTo;
this.filePrefix = filePrefix;
this.fileSuffix = fileSuffix;
this.rotate = rotate;
this.extended = extended;
this.useServerLog = false;
this.predicate = predicate == null ? Predicates.truePredicate() : predicate;
}
@Override
public void start(StartContext context) throws StartException {
if (useServerLog) {
logReceiver = new JBossLoggingAccessLogReceiver();
} else {
if (pathRelativeTo != null) {
callbackHandle = pathManager.getValue().registerCallback(pathRelativeTo, PathManager.ReloadServerCallback.create(), PathManager.Event.UPDATED, PathManager.Event.REMOVED);
}
directory = Paths.get(pathManager.getValue().resolveRelativePathEntry(path, pathRelativeTo));
if (!Files.exists(directory)) {
try {
Files.createDirectories(directory);
} catch (IOException e) {
throw UndertowLogger.ROOT_LOGGER.couldNotCreateLogDirectory(directory, e);
}
}
try {
DefaultAccessLogReceiver.Builder builder = DefaultAccessLogReceiver.builder().setLogWriteExecutor(worker.getValue())
.setOutputDirectory(directory)
.setLogBaseName(filePrefix)
.setLogNameSuffix(fileSuffix)
.setRotate(rotate);
if(extended) {
builder.setLogFileHeaderGenerator(new ExtendedAccessLogParser.ExtendedAccessLogHeaderGenerator(pattern));
extendedPattern = new ExtendedAccessLogParser(getClass().getClassLoader()).parse(pattern);
} else {
extendedPattern = null;
}
logReceiver = builder.build();
} catch (IllegalStateException e) {
throw new StartException(e);
}
}
host.getValue().setAccessLogService(this);
}
@Override
public void stop(StopContext context) {
host.getValue().setAccessLogService(null);
if (callbackHandle != null) {
callbackHandle.remove();
callbackHandle = null;
}
if( logReceiver instanceof DefaultAccessLogReceiver ) {
IoUtils.safeClose((DefaultAccessLogReceiver) logReceiver);
}
logReceiver = null;
}
@Override
public AccessLogService getValue() throws IllegalStateException, IllegalArgumentException {
return this;
}
InjectedValue<XnioWorker> getWorker() {
return worker;
}
InjectedValue<PathManager> getPathManager() {
return pathManager;
}
protected AccessLogHandler configureAccessLogHandler(HttpHandler handler) {
if(extendedPattern != null) {
return new AccessLogHandler(handler, logReceiver, pattern, extendedPattern, predicate);
} else {
return new AccessLogHandler(handler, logReceiver, pattern, getClass().getClassLoader(), predicate);
}
}
public InjectedValue<Host> getHost() {
return host;
}
boolean isRotate() {
return rotate;
}
String getPath() {
return path;
}
}