package com.webobjects.monitor.wotaskd;
/*
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*/
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.lang.management.ManagementFactory;
import java.net.DatagramPacket;
import java.net.InetAddress;
import java.net.MulticastSocket;
import java.net.UnknownHostException;
import java.util.Arrays;
import java.util.HashMap;
import javax.management.InstanceAlreadyExistsException;
import javax.management.MBeanRegistrationException;
import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectName;
import javax.management.remote.JMXConnectorServer;
import javax.management.remote.JMXConnectorServerFactory;
import javax.management.remote.JMXServiceURL;
import org.apache.commons.lang3.CharEncoding;
import org.apache.sshd.SshServer;
import org.apache.sshd.common.NamedFactory;
import org.apache.sshd.server.Command;
import org.apache.sshd.server.PasswordAuthenticator;
import org.apache.sshd.server.command.ScpCommandFactory;
import org.apache.sshd.server.keyprovider.SimpleGeneratorHostKeyProvider;
import org.apache.sshd.server.session.ServerSession;
import org.apache.sshd.server.sftp.SftpSubsystem;
import org.apache.sshd.server.shell.ProcessShellFactory;
import com.webobjects.appserver.WOApplication;
import com.webobjects.appserver.WORequest;
import com.webobjects.appserver.WORequestHandler;
import com.webobjects.appserver.WOResponse;
import com.webobjects.foundation.NSData;
import com.webobjects.foundation.NSDictionary;
import com.webobjects.foundation.NSLog;
import com.webobjects.foundation._NSCollectionReaderWriterLock;
import com.webobjects.monitor._private.MObject;
import com.webobjects.monitor._private.MSiteConfig;
import com.webobjects.monitor._private.String_Extensions;
import com.webobjects.monitor.wotaskd.rest.controllers.MApplicationController;
import com.webobjects.monitor.wotaskd.rest.controllers.MHostController;
import com.webobjects.monitor.wotaskd.rest.controllers.MSiteConfigController;
import er.extensions.appserver.ERXApplication;
import er.extensions.foundation.ERXProperties;
import er.rest.routes.ERXRoute;
import er.rest.routes.ERXRouteRequestHandler;
public class Application extends ERXApplication {
private LocalMonitor _localMonitor;
private MSiteConfig _siteConfig;
private ListenThread listenThread;
private LifebeatRequestHandler _lifebeatRequestHandler;
private Number _port;
private int _intPort;
private String _multicastAddress;
private boolean _shouldWriteAdaptorConfig;
private boolean _shouldRespondToMulticast;
public _NSCollectionReaderWriterLock _lock;
//========================================================================================
// JMX Instance Variables
// ------------------------------------------------------
private MBeanServer _mbeanServer; // MBean server
private String _mbsDomain; // JMX domain to be used for the mbean server
private String _jmxPort = null; // Port number for jmx listener
private String _jmxAccessFile = null; // Access filename for JMX client authentication (with comlete path)
private String _jmxPasswordFile = null; // Password filename for JMX client authentication (with comlete path)
static public void main(String argv[]) {
ERXApplication.main(argv, Application.class);
}
@Override
public String defaultRequestHandlerClassName() {
return "com.webobjects.appserver._private.WODirectActionRequestHandler";
}
@Override
public String name() {
return "wotaskd";
}
@Override
public Number port() {
if (_port == null) {
if (super.port().intValue() > 0) {
_port = super.port();
} else {
_port = Integer.valueOf(1085);
}
_intPort = _port.intValue();
}
return _port;
}
protected int intPort() {
return _intPort;
}
public String multicastAddress() {
return _multicastAddress;
}
@Override
public boolean allowsConcurrentRequestHandling() {
return true;
}
public MSiteConfig siteConfig() {
return _siteConfig;
}
public void setSiteConfig(MSiteConfig aConfig) {
// Don't need to call dataHasChanged, since a new MSiteConfig is already dirty
_siteConfig = aConfig;
}
public LocalMonitor localMonitor() {
return _localMonitor;
}
public boolean shouldWriteAdaptorConfig() { return _shouldWriteAdaptorConfig; }
public boolean shouldRespondToMulticast() { return _shouldRespondToMulticast; }
public Application() {
super();
_lock = new _NSCollectionReaderWriterLock();
String dd = System.getProperties().getProperty("_DeploymentDebugging");
if (dd != null) {
NSLog.debug.setIsVerbose(true);
NSLog.out.setIsVerbose(true);
NSLog.err.setIsVerbose(true);
NSLog.allowDebugLoggingForGroups(NSLog.DebugGroupDeployment);
if (!NSLog.debugLoggingAllowedForLevel(NSLog.DebugLevelInformational)) {
NSLog.debug.setAllowedDebugLevel(NSLog.DebugLevelInformational);
}
}
com.webobjects.appserver._private.WOHttpIO._alwaysAppendContentLength = false;
// Setting the ports
_setLifebeatDestinationPort(intPort());
// Setting the multicast Port
_multicastAddress = System.getProperties().getProperty("WOMulticastAddress");
if (_multicastAddress == null) {
_multicastAddress = "239.128.14.2";
}
// registering the lifebeat request handler
_lifebeatRequestHandler = new LifebeatRequestHandler();
registerRequestHandler(_lifebeatRequestHandler, "wlb");
// unregistering the WOComponent / WOResource request handlers
removeRequestHandlerForKey("wo");
removeRequestHandlerForKey("wr");
removeRequestHandlerForKey("womp");
// getting the siteConfig (+ all Hosts, Apps, Instances) from disk
_siteConfig = MSiteConfig.unarchiveSiteConfig(true);
_siteConfig.archiveSiteConfig();
// creating the localMonitor (used to control and query instances)
_localMonitor = new LocalMonitor();
// checking to see if we should save WOConfig.xml to disk for the adaptors.
String WOSavesAdaptorConfig = System.getProperties().getProperty("WOSavesAdaptorConfiguration");
if (WOSavesAdaptorConfig != null) {
_shouldWriteAdaptorConfig = String_Extensions.boolValue(WOSavesAdaptorConfig);
if (_shouldWriteAdaptorConfig) {
_siteConfig.archiveAdaptorConfig();
}
} else {
_shouldWriteAdaptorConfig = false;
}
// checking to see if we should respond to adaptor multicast queries
// we will always respond to non-multicast UDP packets
String shouldMC = System.getProperties().getProperty("WORespondsToMulticastQuery");
if (shouldMC != null) {
if (!String_Extensions.boolValue(shouldMC)) {
_shouldRespondToMulticast = false;
NSLog.debug.appendln("Multicast Response Disabled");
} else {
_shouldRespondToMulticast = true;
NSLog.debug.appendln("Multicast Response Enabled");
}
}
//JMX Support
_jmxPort = System.getProperty("WOJMXPort");
_jmxAccessFile = System.getProperty("WOJMXAccessFile");
_jmxPasswordFile = System.getProperty("WOJMXPasswordFile");
if (_jmxPort != null) {
registerMBean(SiteConfig.getInstance(), "WotaskdJMXMBean", "SiteConfigMBean");
setupRemoteMonitoring();
}
// Set up multicast listen thread
createRequestListenerThread();
ERXRouteRequestHandler restHandler = new ERXRouteRequestHandler();
restHandler.addDefaultRoutes("MApplication", false, MApplicationController.class);
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/{name:MApplication}/addInstance", ERXRoute.Method.Get, MApplicationController.class, "addInstance"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/{name:MApplication}/deleteInstance", ERXRoute.Method.Get, MApplicationController.class, "deleteInstance"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/info", ERXRoute.Method.Get, MApplicationController.class, "info"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/{name:MApplication}/info", ERXRoute.Method.Get, MApplicationController.class, "info"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/isRunning", ERXRoute.Method.Get, MApplicationController.class, "isRunning"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/{name:MApplication}/isRunning", ERXRoute.Method.Get, MApplicationController.class, "isRunning"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/isStopped", ERXRoute.Method.Get, MApplicationController.class, "isStopped"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/{name:MApplication}/isStopped", ERXRoute.Method.Get, MApplicationController.class, "isStopped"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/start", ERXRoute.Method.Get, MApplicationController.class, "start"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/{name:MApplication}/start", ERXRoute.Method.Get, MApplicationController.class, "start"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/stop", ERXRoute.Method.Get, MApplicationController.class, "stop"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/{name:MApplication}/stop", ERXRoute.Method.Get, MApplicationController.class, "stop"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/forceQuit", ERXRoute.Method.Get, MApplicationController.class, "forceQuit"));
restHandler.insertRoute(new ERXRoute("MApplication","/mApplications/{name:MApplication}/forceQuit", ERXRoute.Method.Get, MApplicationController.class, "forceQuit"));
restHandler.addDefaultRoutes("MHost", false, MHostController.class);
restHandler.addDefaultRoutes("MSiteConfig", false, MSiteConfigController.class);
restHandler.insertRoute(new ERXRoute("MSiteConfig","/mSiteConfig", ERXRoute.Method.Put, MSiteConfigController.class, "update"));
ERXRouteRequestHandler.register(restHandler);
boolean isSSHServerEnabled = ERXProperties.booleanForKeyWithDefault("er.wotaskd.sshd.enabled", false);
if (isSSHServerEnabled) {
SshServer sshd = SshServer.setUpDefaultServer();
sshd.setPort(ERXProperties.intForKeyWithDefault("er.wotaskd.sshd.port", 6022));
sshd.setPasswordAuthenticator(new SshPasswordAuthenticator());
sshd.setKeyPairProvider(new SimpleGeneratorHostKeyProvider("hostkey.ser"));
sshd.setCommandFactory(new ScpCommandFactory());
sshd.setSubsystemFactories(Arrays.<NamedFactory<Command>>asList(new SftpSubsystem.Factory()));
sshd.setShellFactory(new ProcessShellFactory(new String[] { "/bin/bash", "-i", "-l" }));
try {
sshd.start();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public class SshPasswordAuthenticator implements PasswordAuthenticator {
public boolean authenticate(String username, String password, ServerSession serversession) {
return (siteConfig().compareStringWithPassword(password)) ? true: false;
}
}
/**
* ============================================================================================
* Methods Added for Enabling JMX in Wotaskd
* ============================================================================================
* This methods registers the MBean object in the MBeanServer
* @param objMBean - The MBean object to register
* @param strDomainName - Domain name required for creating the ObjectName of the MBean
* @param strMBeanName - Name of the MBean
*/
@Override
public void registerMBean(Object objMBean, String strDomainName, String strMBeanName) throws IllegalArgumentException{
if (objMBean == null)
throw new IllegalArgumentException("Error: Could not register null to PlatformMbeanServer.");
if (strMBeanName == null)
throw new IllegalArgumentException("Error: MBean name could not be null.");
ObjectName objName = null;
strDomainName = (strDomainName == null) ? getJMXDomain() : strDomainName;
//Create the Object Name for the MBean
try {
objName = new ObjectName(strDomainName + ": name=" + strMBeanName);
} catch (MalformedObjectNameException e) {
e.printStackTrace();
} catch (NullPointerException e) {
e.printStackTrace();
}
// Register the MBean
try {
getMBeanServer().registerMBean(objMBean, objName);
} catch (IllegalAccessException e) {
NSLog.err.appendln("ERROR: security access problem registering bean: "+objMBean+" with ObjectName: "+objName+" "+e.toString());
} catch (InstanceAlreadyExistsException e) {
NSLog.err.appendln("ERROR: MBean already exists bean: "+objMBean+" with ObjectName: "+objName+" "+e.toString());
} catch (MBeanRegistrationException e) {
NSLog.err.appendln("ERROR: error registering bean: "+objMBean+" with ObjectName: "+objName+" "+e.toString());
} catch (NotCompliantMBeanException e) {
NSLog.err.appendln("ERROR: error registering bean: "+objMBean+" with ObjectName: "+objName+" "+e.toString());
}
}
/**
* ============================================================================================
* Methods Added for Enabling JMX in Wotaskd
* ============================================================================================
* This methods creates the JMX Domain Name by appending the hostname, application
* name and the port. This is called from method registerMBean() whenever domain
* name is passed as null.
* @return _mbsDomain - String containing the Domain name to be used while registering the MBean
*/
@Override
public String getJMXDomain() {
if (_mbsDomain == null) {
_mbsDomain = host() + "." + name() + "." + port();
}
return _mbsDomain;
}
/**
* ============================================================================================
* Methods Added for Enabling JMX in Wotaskd
* ============================================================================================
* This methods sets up this application for remote monitoring. This method creates a new
* connector server and associates it with the MBean Server. The server is started by calling
* the start() method. The connector server listens for the client connection requests and
* creates a connection for each one.
*/
public void setupRemoteMonitoring() {
if (_jmxPort != null) {
// Create an RMI connector and start it
try {
// Get the port difference to use when creating our new jmx listener
int intWotaskdJmxPort = Integer.parseInt(_jmxPort);
// Set up the Password and Access file
HashMap<String, String> envPwd = new HashMap<>();
envPwd.put("jmx.remote.x.password.file", _jmxPasswordFile);
envPwd.put("jmx.remote.x.access.file", _jmxAccessFile);
// setup our listener
java.rmi.registry.LocateRegistry.createRegistry(intWotaskdJmxPort);
JMXServiceURL jsUrl = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://"+host()+":"+intWotaskdJmxPort+"/jmxrmi");
NSLog.debug.appendln("Setting up monitoring on url : " + jsUrl);
// Create an RMI Connector Server
JMXConnectorServer jmxCS = JMXConnectorServerFactory.newJMXConnectorServer(jsUrl, envPwd, getMBeanServer());
jmxCS.start();
} catch (Exception anException) {
NSLog.err.appendln("Error starting remote monitoring: " + anException);
}
}
}
/**
* ============================================================================================
* Methods Added for Enabling JMX in Wotaskd
* ============================================================================================
* This methods returns the platform MBean Server from the Factory
* @return _mbeanServer - The platform MBeanServer
*/
@Override
public MBeanServer getMBeanServer() throws IllegalAccessException {
if (_mbeanServer == null) {
_mbeanServer = ManagementFactory.getPlatformMBeanServer();
if (_mbeanServer == null)
throw new IllegalAccessException("Error: PlatformMBeanServer could not be accessed via ManagementFactory.");
}
return _mbeanServer;
}
/**
* Added by X-Provision Team
* This method reads the SiteConfig.xml file whenever it is invoked by the SiteConfigMBean
*/
public void readSiteConfigXML() {
NSLog.debug.appendln("Inside readSiteConfigXML method of Application.java: Calling unarchiveSiteConfig");
_siteConfig = MSiteConfig.unarchiveSiteConfig(true);
NSLog.debug.appendln("Inside readSiteConfigXML method of Application.java: Calling archiveSiteConfig");
_siteConfig.archiveSiteConfig();
}
// sleep will check if there have been changes to the siteConfig.
// if so, it will write the new siteConfig to disk as SiteConfig.xml
// if requested, it will also write the new adaptorConfig to disk as WOConfig.xml
@Override
public void sleep() {
_lock.startReading();
try {
if ( (_siteConfig != null) && (_siteConfig.hasChanges()) ) {
// archiving the siteConfig
_siteConfig.archiveSiteConfig();
if (_shouldWriteAdaptorConfig) {
_siteConfig.archiveAdaptorConfig();
}
_siteConfig.resetChanges();
}
} finally {
_lock.endReading();
}
}
// creates and starts the ListenerThread inner class
public void createRequestListenerThread() {
if (NSLog.debugLoggingAllowedForLevelAndGroups(NSLog.DebugLevelInformational, NSLog.DebugGroupDeployment))
NSLog.debug.appendln("Detaching request listen thread");
listenThread = new Application.ListenThread();
listenThread.start();
}
// cleans up after the Application (specifically the ListenThread)
@Override
public void finalize() throws Throwable {
listenThread.closeRequestSocket();
listenThread.stop();
super.finalize();
}
// Overridden createRequest because WO ObjC apps send 'GET /... HTTP/1.0 ' (note extra space) which doesn't parse very well.
public WORequest createRequest(String aMethod, String aURL, String anHTTPVersion, NSDictionary someHeaders, NSData aContent, NSDictionary someInfo) {
if ( (anHTTPVersion == null) && (aURL != null) && (aURL.endsWith(" HTTP/1.0")) ) {
anHTTPVersion = MObject._HTTP1;
aURL = aURL.substring(0, (aURL.length() - MObject._HTTP1.length() - 1) );
}
return super.createRequest(aMethod, aURL, anHTTPVersion, someHeaders, aContent, someInfo);
}
// overridden dispatch of requests, for faster lifebeat checking
// if it's a lifebeat, we return a null response, and that should close the socket immediately
@Override
public WOResponse dispatchRequest(WORequest aRequest) {
WORequestHandler aHandler = handlerForRequest(aRequest);
if ( (aHandler != null) && (aHandler == _lifebeatRequestHandler) ) {
_TheLastApplicationAccessTime = System.currentTimeMillis();
return aHandler.handleRequest(aRequest);
}
return super.dispatchRequest(aRequest);
}
// Inner class used to listen to Multicast Queries and UDP queries
class ListenThread extends Thread {
MulticastSocket socket;
InetAddress address;
private void createRequestSocket() {
// Create a new MulticastSocket, even if we're not listening for Multicast
// MulticastSocket acts just like a DatagramSocket
try {
socket = new MulticastSocket(intPort());
if (!WOApplication.application()._unsetHost) {
socket.setInterface(WOApplication.application().hostAddress());
}
} catch (IOException exception) {
NSLog.err.appendln("Unable to create multicast listener socket: " + exception);
NSLog.err.appendln("Port " + intPort() + " may be in use by another application.");
NSLog.err.appendln("Exiting...");
System.exit(1);
}
if (_shouldRespondToMulticast) {
try {
address = InetAddress.getByName(multicastAddress());
} catch (UnknownHostException exception) {
NSLog.err.appendln("Error resolving address: " + multicastAddress() + " - " + exception);
NSLog.err.appendln("Exiting...");
System.exit(1);
}
if (!address.isMulticastAddress()) {
NSLog.err.appendln(address + " is not a valid multicast address");
NSLog.err.appendln("Exiting...");
System.exit(1);
}
try {
socket.joinGroup(address);
} catch (IOException exception) {
NSLog.err.appendln("Error joining multicast group: " + exception);
NSLog.err.appendln("Exiting...");
System.exit(1);
}
}
}
public void closeRequestSocket() {
try {
socket.leaveGroup(address);
if (NSLog.debugLoggingAllowedForLevelAndGroups(NSLog.DebugLevelInformational, NSLog.DebugGroupDeployment))
NSLog.debug.appendln("Leaving multicast group");
} catch (IOException exception) {
if (NSLog.debugLoggingAllowedForLevelAndGroups(NSLog.DebugLevelCritical, NSLog.DebugGroupDeployment))
NSLog.debug.appendln("Error leaving multicast group " + exception);
return;
}
if (NSLog.debugLoggingAllowedForLevelAndGroups(NSLog.DebugLevelInformational, NSLog.DebugGroupDeployment))
NSLog.debug.appendln("Closing request listen socket");
socket.close();
}
public void sendReplyWithLengthTo(byte[] aReplyBytes, int aReplyBytesLength, DatagramPacket incomingPacket) {
DatagramPacket outgoingPacket = new DatagramPacket(aReplyBytes, aReplyBytesLength, incomingPacket.getAddress(), incomingPacket.getPort());
try {
socket.send(outgoingPacket);
} catch(IOException localException) {
NSLog.err.appendln("Error sending reply: " + localException + " (ignored)");
}
}
private boolean byteArrayStartsWith(byte[] anArray, byte[] anotherArray, int aLength) {
for (int i = 0 ; i < aLength ; i++) {
if (anArray[i] != anotherArray[i]) {
return false;
}
}
return true;
}
// This is the main thread - we just look for a UDP packet that matches a known signature.
public void listenForRequests() {
try {
String myName = WOApplication.application().host().toLowerCase() + ":" + intPort();
byte[] multicastRequest;
byte[] multicastReply;
byte[] versionRequest;
byte[] versionReply;
try {
multicastRequest = ("GET CONFIG-URL").getBytes(CharEncoding.UTF_8);
multicastReply = ("http://" + myName + '\0').getBytes(CharEncoding.UTF_8);
versionRequest = ("womp://queryVersion").getBytes(CharEncoding.UTF_8);
versionReply = ("womp://replyVersion/" + myName + ":webObjects5.0" + '\0').getBytes(CharEncoding.UTF_8);
} catch (UnsupportedEncodingException uee) {
multicastRequest = ("GET CONFIG-URL").getBytes();
multicastReply = ("http://" + myName + '\0').getBytes();
versionRequest = ("womp://queryVersion").getBytes();
versionReply = ("womp://replyVersion/" + myName + ":webObjects5.0" + '\0').getBytes();
}
int multicastRequestLength = multicastRequest.length;
int multicast_reply_len = multicastReply.length;
int versionRequestLength = versionRequest.length;
int version_reply_len = versionReply.length;
byte[] mbuffer = new byte[1000];
DatagramPacket incomingPacket = new DatagramPacket(mbuffer, mbuffer.length);
while (socket != null) {
try {
incomingPacket.setLength(mbuffer.length);
socket.receive(incomingPacket);
if (byteArrayStartsWith(incomingPacket.getData(), multicastRequest, multicastRequestLength)) {
// this responds with the DirectAction URL for getting our adaptor Config XML
sendReplyWithLengthTo(multicastReply, multicast_reply_len, incomingPacket);
} else if (byteArrayStartsWith(incomingPacket.getData(), versionRequest, versionRequestLength)) {
// This is if someone asks us what version we are
sendReplyWithLengthTo(versionReply, version_reply_len, incomingPacket);
} else {
// This is if we get an unrecognized packet.
String key = incomingPacket.getAddress() + ":" + incomingPacket.getPort();
siteConfig().globalErrorDictionary.takeValueForKey( (myName + ": Unrecognized UDP packet: " + new String(incomingPacket.getData()) + " from " + key + ". This may be an Application that conforms to an older protocol.") , key);
if (NSLog.debugLoggingAllowedForLevelAndGroups(NSLog.DebugLevelCritical, NSLog.DebugGroupDeployment))
NSLog.debug.appendln(myName + ": Unrecognized UDP packet: " + new String(incomingPacket.getData()) + " from " + key + ". This may be an Application that conforms to an older protocol.");
}
} catch(IOException localException) {
NSLog.err.appendln("Error receiving packet: " + localException + " (ignored)");
}
}
// Hari-kiri - but should never happen, of course.
NSLog.err.appendln("wotaskd listen thread exiting because of bad socket");
} catch (Throwable t) {
NSLog.err.appendln("Listen thread exiting with exception: " + t);
if (NSLog.debugLoggingAllowedForLevelAndGroups(NSLog.DebugLevelCritical, NSLog.DebugGroupDeployment))
NSLog.debug.appendln(t);
}
System.exit(1);
}
@Override
public void run() {
createRequestSocket();
NSLog.debug.appendln("Created UDP socket; listening for requests...");
listenForRequests();
}
}
}