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package com.juick.xmpp.s2s;
import com.juick.xmpp.Stanza;
import com.juick.xmpp.StanzaChild;
import com.juick.xmpp.extensions.JuickMessage;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.xmlpull.v1.XmlPullParserException;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import java.io.IOException;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.*;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author ugnich
*/
public class XMPPComponent implements ServletContextListener {
private static final Logger LOGGER = Logger.getLogger(XMPPComponent.class.getName());
public final ExecutorService executorService = Executors.newCachedThreadPool();
public String HOSTNAME = null;
public String STATSFILE = null;
public String keystore;
public String keystorePassword;
public List<String> brokenSSLhosts;
public ConnectionRouter connRouter;
final List<ConnectionIn> inConnections = Collections.synchronizedList(new ArrayList<>());
final List<ConnectionOut> outConnections = Collections.synchronizedList(new ArrayList<>());
final List<CacheEntry> outCache = Collections.synchronizedList(new ArrayList<>());
JdbcTemplate sql;
final public HashMap<String, StanzaChild> childParsers = new HashMap<>();
public void addConnectionIn(ConnectionIn c) {
synchronized (inConnections) {
inConnections.add(c);
}
}
public void addConnectionOut(ConnectionOut c) {
synchronized (outConnections) {
outConnections.add(c);
}
}
public void removeConnectionIn(ConnectionIn c) {
synchronized (inConnections) {
inConnections.remove(c);
}
}
public void removeConnectionOut(ConnectionOut c) {
synchronized (outConnections) {
outConnections.remove(c);
}
}
public String getFromCache(String hostname) {
CacheEntry ret = null;
synchronized (outCache) {
for (Iterator<CacheEntry> i = outCache.iterator(); i.hasNext();) {
CacheEntry c = i.next();
if (c.hostname != null && c.hostname.equals(hostname)) {
ret = c;
i.remove();
break;
}
}
}
return (ret != null) ? ret.xml : null;
}
public ConnectionOut getConnectionOut(String hostname, boolean needReady) {
synchronized (outConnections) {
for (ConnectionOut c : outConnections) {
if (c.to != null && c.to.equals(hostname) && (!needReady || c.streamReady)) {
return c;
}
}
}
return null;
}
public ConnectionIn getConnectionIn(String streamID) {
synchronized (inConnections) {
for (ConnectionIn c : inConnections) {
if (c.streamID != null && c.streamID.equals(streamID)) {
return c;
}
}
}
return null;
}
public void sendOut(Stanza s) {
sendOut(s.to.Host, s.toString());
}
public void sendOut(String hostname, String xml) {
boolean haveAnyConn = false;
ConnectionOut connOut = null;
synchronized (outConnections) {
for (ConnectionOut c : outConnections) {
if (c.to != null && c.to.equals(hostname)) {
if (c.streamReady) {
connOut = c;
break;
} else {
haveAnyConn = true;
break;
}
}
}
}
if (connOut != null) {
try {
connOut.sendStanza(xml);
} catch (IOException e) {
LOGGER.warning("STREAM TO " + connOut.to + " " + connOut.streamID + " ERROR: " + e.toString());
}
return;
}
boolean haveCache = false;
synchronized (outCache) {
for (CacheEntry c : outCache) {
if (c.hostname != null && c.hostname.equals(hostname)) {
c.xml += xml;
c.tsUpdated = System.currentTimeMillis();
haveCache = true;
break;
}
}
if (!haveCache) {
outCache.add(new CacheEntry(hostname, xml));
}
}
if (!haveAnyConn) {
ConnectionOut connectionOut = null;
try {
connectionOut = new ConnectionOut(this, hostname);
executorService.submit(connectionOut);
} catch (CertificateException | UnrecoverableKeyException | NoSuchAlgorithmException | XmlPullParserException | KeyStoreException | KeyManagementException | IOException e) {
LOGGER.log(Level.SEVERE, "s2s out error", e);
}
}
}
@Override
public void contextInitialized(ServletContextEvent sce) {
LOGGER.info("component initialized");
executorService.submit(() -> {
Properties conf = new Properties();
try {
conf.load(sce.getServletContext().getResourceAsStream("/WEB-INF/juick.conf"));
HOSTNAME = conf.getProperty("hostname");
String componentName = conf.getProperty("componentname");
STATSFILE = conf.getProperty("statsfile");
keystore = conf.getProperty("keystore");
keystorePassword = conf.getProperty("keystore_password");
brokenSSLhosts = Arrays.asList(conf.getProperty("broken_ssl_hosts", "").split(","));
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(conf.getProperty("datasource_driver", "com.mysql.jdbc.Driver"));
dataSource.setUrl(conf.getProperty("datasource_url"));
DriverManagerDataSource dataSourceSearch = new DriverManagerDataSource();
dataSourceSearch.setDriverClassName(conf.getProperty("datasource_driver", "com.mysql.jdbc.Driver"));
sql = new JdbcTemplate(dataSource);
childParsers.put(JuickMessage.XMLNS, new JuickMessage());
executorService.submit(() -> connRouter = new ConnectionRouter(this, componentName, conf.getProperty("xmpp_password")));
executorService.submit(new ConnectionListener(this));
executorService.submit(new CleaningUp(this));
} catch (Exception e) {
LOGGER.log(Level.SEVERE, "XMPPComponent error", e);
}
});
}
@Override
public void contextDestroyed(ServletContextEvent sce) {
synchronized (outConnections) {
for (Iterator<ConnectionOut> i = outConnections.iterator(); i.hasNext();) {
ConnectionOut c = i.next();
c.closeConnection();
i.remove();
}
}
synchronized (inConnections) {
for (Iterator<ConnectionIn> i = inConnections.iterator(); i.hasNext();) {
ConnectionIn c = i.next();
c.closeConnection();
i.remove();
}
}
try {
connRouter.closeConnection();
} catch (IOException e) {
LOGGER.log(Level.WARNING, "router warning", e);
}
// Now deregister JDBC drivers in this context's ClassLoader:
// Get the webapp's ClassLoader
ClassLoader cl = Thread.currentThread().getContextClassLoader();
// Loop through all drivers
Enumeration<Driver> drivers = DriverManager.getDrivers();
while (drivers.hasMoreElements()) {
Driver driver = drivers.nextElement();
if (driver.getClass().getClassLoader() == cl) {
// This driver was registered by the webapp's ClassLoader, so deregister it:
try {
LOGGER.info(String.format("Deregistering JDBC driver %s", driver.toString()));
DriverManager.deregisterDriver(driver);
} catch (SQLException ex) {
LOGGER.log(Level.SEVERE, String.format("Error deregistering JDBC driver %s", driver), ex);
}
} else {
// driver was not registered by the webapp's ClassLoader and may be in use elsewhere
LOGGER.log(Level.SEVERE, String.format("Not deregistering JDBC driver %s as it does not belong to this webapp's ClassLoader", driver));
}
}
executorService.shutdown();
LOGGER.info("component destroyed");
}
}
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