diff options
Diffstat (limited to 'src/main/java/com/juick/server/XMPPServer.java')
| -rw-r--r-- | src/main/java/com/juick/server/XMPPServer.java | 429 |
1 files changed, 0 insertions, 429 deletions
diff --git a/src/main/java/com/juick/server/XMPPServer.java b/src/main/java/com/juick/server/XMPPServer.java deleted file mode 100644 index 86ab6a78..00000000 --- a/src/main/java/com/juick/server/XMPPServer.java +++ /dev/null @@ -1,429 +0,0 @@ -/* - * Copyright (C) 2008-2017, Juick - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as - * published by the Free Software Foundation, either version 3 of the - * License, or (at your option) any later version. - * - * This program 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 Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -package com.juick.server; - -import com.juick.server.xmpp.router.StreamError; -import com.juick.server.xmpp.s2s.*; -import com.juick.service.UserService; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; -import org.springframework.beans.factory.annotation.Value; -import org.springframework.scheduling.annotation.Scheduled; -import org.xmlpull.v1.XmlPullParserException; -import rocks.xmpp.addr.Jid; -import rocks.xmpp.core.stanza.model.Stanza; - -import javax.annotation.PostConstruct; -import javax.annotation.PreDestroy; -import javax.inject.Inject; -import javax.net.ssl.*; -import javax.xml.bind.JAXBException; -import javax.xml.bind.Unmarshaller; -import java.io.IOException; -import java.io.StringReader; -import java.net.ServerSocket; -import java.net.Socket; -import java.net.SocketException; -import java.security.InvalidAlgorithmParameterException; -import java.security.KeyStore; -import java.security.KeyStoreException; -import java.security.SecureRandom; -import java.security.cert.*; -import java.time.Duration; -import java.time.Instant; -import java.util.*; -import java.util.concurrent.ConcurrentHashMap; -import java.util.concurrent.CopyOnWriteArrayList; -import java.util.concurrent.ExecutorService; -import java.util.concurrent.atomic.AtomicBoolean; - -/** - * @author ugnich - */ -public class XMPPServer implements ConnectionListener { - private static final Logger logger = LoggerFactory.getLogger("com.juick.server.xmpp"); - - private static final int TIMEOUT_MINUTES = 15; - - @Inject - public ExecutorService service; - @Value("${hostname:localhost}") - private Jid jid; - @Value("${s2s_port:5269}") - private int s2sPort; - @Value("${broken_ssl_hosts:}") - public String[] brokenSSLhosts; - @Value("${banned_hosts:}") - public String[] bannedHosts; - - private final List<ConnectionIn> inConnections = new CopyOnWriteArrayList<>(); - private final Map<ConnectionOut, Optional<Socket>> outConnections = new ConcurrentHashMap<>(); - private final List<CacheEntry> outCache = new CopyOnWriteArrayList<>(); - private final List<StanzaListener> stanzaListeners = new CopyOnWriteArrayList<>(); - private final AtomicBoolean closeFlag = new AtomicBoolean(false); - - SSLContext sc; - CertificateFactory cf; - CertPathValidator cpv; - PKIXParameters params; - private TrustManager[] trustAllCerts = new TrustManager[]{ - new X509TrustManager() { - public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType) { - } - - public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType) { - } - - public java.security.cert.X509Certificate[] getAcceptedIssuers() { - return new X509Certificate[0]; - } - } - }; - private boolean tlsConfigured = false; - - - private ServerSocket listener; - - @Inject - private BasicXmppSession session; - @Inject - private UserService userService; - @Inject - private KeystoreManager keystoreManager; - - @PostConstruct - public void init() throws KeyStoreException { - closeFlag.set(false); - try { - sc = SSLContext.getInstance("TLSv1.2"); - sc.init(keystoreManager.getKeymanagerFactory().getKeyManagers(), trustAllCerts, new SecureRandom()); - TrustManagerFactory trustManagerFactory = - TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm()); - Set<TrustAnchor> ca = new HashSet<>(); - trustManagerFactory.init((KeyStore)null); - Arrays.stream(trustManagerFactory.getTrustManagers()).forEach(t -> Arrays.stream(((X509TrustManager)t).getAcceptedIssuers()).forEach(cert -> ca.add(new TrustAnchor(cert, null)))); - params = new PKIXParameters(ca); - params.setRevocationEnabled(false); - cpv = CertPathValidator.getInstance("PKIX"); - cf = CertificateFactory.getInstance( "X.509" ); - tlsConfigured = true; - } catch (Exception e) { - logger.warn("tls unavailable"); - } - service.submit(() -> { - try { - listener = new ServerSocket(s2sPort); - logger.info("s2s listener ready"); - while (!listener.isClosed()) { - if (Thread.currentThread().isInterrupted()) break; - Socket socket = listener.accept(); - ConnectionIn client = new ConnectionIn(this, socket); - addConnectionIn(client); - service.submit(client); - } - } catch (SocketException e) { - // shutdown - } catch (IOException | XmlPullParserException e) { - logger.warn("xmpp exception", e); - } - }); - } - - public void addConnectionIn(ConnectionIn c) { - c.setListener(this); - inConnections.add(c); - } - - public void addConnectionOut(ConnectionOut c, Optional<Socket> socket) { - c.setListener(this); - outConnections.put(c, socket); - } - - public void removeConnectionIn(ConnectionIn c) { - inConnections.remove(c); - } - - public void removeConnectionOut(ConnectionOut c) { - outConnections.remove(c); - } - - public String getFromCache(Jid to) { - final String[] cache = new String[1]; - outCache.stream().filter(c -> c.hostname != null && c.hostname.equals(to)).findFirst().ifPresent(c -> { - cache[0] = c.xml; - outCache.remove(c); - }); - return cache[0]; - } - - public Optional<ConnectionOut> getConnectionOut(Jid hostname, boolean needReady) { - return outConnections.keySet().stream().filter(c -> c.to != null && - c.to.equals(hostname) && (!needReady || c.streamReady)).findFirst(); - } - - public Optional<ConnectionIn> getConnectionIn(String streamID) { - return inConnections.stream().filter(c -> c.streamID != null && c.streamID.equals(streamID)).findFirst(); - } - - public void sendOut(Jid hostname, String xml) { - boolean haveAnyConn = false; - - ConnectionOut connOut = null; - for (ConnectionOut c : outConnections.keySet()) { - if (c.to != null && c.to.equals(hostname)) { - if (c.streamReady) { - connOut = c; - break; - } else { - haveAnyConn = true; - break; - } - } - } - if (connOut != null) { - connOut.send(xml); - return; - } - - boolean haveCache = false; - for (CacheEntry c : outCache) { - if (c.hostname != null && c.hostname.equals(hostname)) { - c.xml += xml; - c.updated = Instant.now(); - haveCache = true; - break; - } - } - if (!haveCache) { - outCache.add(new CacheEntry(hostname, xml)); - } - - if (!haveAnyConn && !closeFlag.get()) { - try { - createDialbackConnection(hostname.toEscapedString(), null, null); - } catch (Exception e) { - logger.warn("dialback error", e); - } - } - } - - void createDialbackConnection(String to, String checkSID, String dbKey) throws Exception { - ConnectionOut connectionOut = new ConnectionOut(getJid(), Jid.of(to), null, null, checkSID, dbKey); - addConnectionOut(connectionOut, Optional.empty()); - service.submit(() -> { - try { - Socket socket = new Socket(); - socket.connect(DNSQueries.getServerAddress(to)); - connectionOut.setInputStream(socket.getInputStream()); - connectionOut.setOutputStream(socket.getOutputStream()); - addConnectionOut(connectionOut, Optional.of(socket)); - connectionOut.connect(); - } catch (IOException e) { - logger.info("dialback to " + to + " exception", e); - } - }); - } - - public void startDialback(Jid from, String streamId, String dbKey) throws Exception { - Optional<ConnectionOut> c = getConnectionOut(from, false); - if (c.isPresent()) { - c.get().sendDialbackVerify(streamId, dbKey); - } else { - createDialbackConnection(from.toEscapedString(), streamId, dbKey); - } - } - - public void addStanzaListener(StanzaListener listener) { - stanzaListeners.add(listener); - } - - public void onStanzaReceived(String xmlValue) { - logger.info("S2S: {}", xmlValue); - Stanza stanza = parse(xmlValue); - stanzaListeners.forEach(l -> l.stanzaReceived(stanza)); - } - - public BasicXmppSession getSession() { - return session; - } - - public List<ConnectionIn> getInConnections() { - return inConnections; - } - - public Map<ConnectionOut, Optional<Socket>> getOutConnections() { - return outConnections; - } - - @Override - public boolean isTlsAvailable() { - return tlsConfigured; - } - - @Override - public void starttls(ConnectionIn connection) { - logger.debug("stream {} securing", connection.streamID); - connection.sendStanza("<proceed xmlns=\"" + Connection.NS_TLS + "\" />"); - try { - connection.setSocket(sc.getSocketFactory().createSocket(connection.getSocket(), connection.getSocket().getInetAddress().getHostAddress(), - connection.getSocket().getPort(), false)); - SSLSocket sslSocket = (SSLSocket) connection.getSocket(); - sslSocket.addHandshakeCompletedListener(handshakeCompletedEvent -> { - try { - CertPath certPath = cf.generateCertPath(Arrays.asList(handshakeCompletedEvent.getPeerCertificates())); - cpv.validate(certPath, params); - connection.setTrusted(true); - logger.info("connection from {} is trusted", connection.from); - } catch (SSLPeerUnverifiedException | CertificateException | CertPathValidatorException | InvalidAlgorithmParameterException e) { - logger.info("connection from {} is NOT trusted, falling back to dialback", connection.from); - } - }); - sslSocket.setUseClientMode(false); - sslSocket.setNeedClientAuth(true); - sslSocket.startHandshake(); - connection.setSecured(true); - logger.debug("stream from {} secured", connection.streamID); - connection.restartParser(); - } catch (XmlPullParserException | IOException sex) { - logger.warn("stream {} ssl error {}", connection.streamID, sex); - connection.sendStanza("<failure xmlns=\"" + Connection.NS_TLS + "\" />"); - removeConnectionIn(connection); - connection.closeConnection(); - } - } - - @Override - public void proceed(ConnectionOut connection) { - try { - Socket socket = outConnections.get(connection).get(); - socket = sc.getSocketFactory().createSocket(socket, socket.getInetAddress().getHostAddress(), - socket.getPort(), false); - SSLSocket sslSocket = (SSLSocket) socket; - sslSocket.addHandshakeCompletedListener(handshakeCompletedEvent -> { - try { - CertPath certPath = cf.generateCertPath(Arrays.asList(handshakeCompletedEvent.getPeerCertificates())); - cpv.validate(certPath, params); - connection.setTrusted(true); - logger.info("connection to {} is trusted", connection.to); - } catch (SSLPeerUnverifiedException | CertificateException | CertPathValidatorException | InvalidAlgorithmParameterException e) { - logger.info("connection to {} is NOT trusted, falling back to dialback", connection.to); - } - }); - sslSocket.setNeedClientAuth(true); - sslSocket.startHandshake(); - connection.setSecured(true); - logger.debug("stream to {} secured", connection.getStreamID()); - connection.setInputStream(socket.getInputStream()); - connection.setOutputStream(socket.getOutputStream()); - connection.restartStream(); - connection.sendOpenStream(); - } catch (NoSuchElementException | XmlPullParserException | IOException sex) { - logger.error("s2s ssl error: {} {}, error {}", connection.to, connection.getStreamID(), sex); - connection.send("<failure xmlns=\"" + Connection.NS_TLS + "\" />"); - removeConnectionOut(connection); - connection.logoff(); - } - } - - @Override - public void verify(ConnectionOut connection, String from, String type, String sid) { - if (from != null && from.equals(connection.to.toEscapedString()) && sid != null && !sid.isEmpty() && type != null) { - getConnectionIn(sid).ifPresent(c -> c.sendDialbackResult(Jid.of(from), type)); - } - } - - @Override - public void dialbackError(ConnectionOut connection, StreamError error) { - logger.warn("Stream error from {}: {}", connection.getStreamID(), error.getCondition()); - removeConnectionOut(connection); - connection.logoff(); - } - - @Override - public void finished(ConnectionOut connection, boolean dirty) { - logger.warn("stream to {} {} finished, dirty={}", connection.to, connection.getStreamID(), dirty); - removeConnectionOut(connection); - connection.logoff(); - } - - @Override - public void exception(ConnectionOut connection, Exception ex) { - logger.error("s2s out exception: {} {}, exception {}", connection.to, connection.getStreamID(), ex); - removeConnectionOut(connection); - connection.logoff(); - } - - @Override - public void ready(ConnectionOut connection) { - logger.debug("stream to {} {} ready", connection.to, connection.getStreamID()); - String cache = getFromCache(connection.to); - if (cache != null) { - logger.debug("stream to {} {} sending cache", connection.to, connection.getStreamID()); - connection.send(cache); - } - } - - @Override - public boolean securing(ConnectionOut connection) { - return tlsConfigured && !Arrays.asList(brokenSSLhosts).contains(connection.to.toEscapedString()); - } - - public Stanza parse(String xml) { - try { - Unmarshaller unmarshaller = session.createUnmarshaller(); - return (Stanza)unmarshaller.unmarshal(new StringReader(xml)); - } catch (JAXBException e) { - logger.error("JAXB exception", e); - } - return null; - } - - public Jid getJid() { - return jid; - } - @Scheduled(fixedDelay = 10000) - public void cleanUp() { - Instant now = Instant.now(); - outConnections.keySet().stream().filter(c -> Duration.between(c.getUpdated(), now).toMinutes() > TIMEOUT_MINUTES) - .forEach(c -> { - logger.info("closing idle outgoing connection to {}", c.to); - c.logoff(); - outConnections.remove(c); - }); - - inConnections.stream().filter(c -> Duration.between(c.updated, now).toMinutes() > TIMEOUT_MINUTES) - .forEach(c -> { - logger.info("closing idle incoming connection from {}", c.from); - c.closeConnection(); - inConnections.remove(c); - }); - } - @PreDestroy - public void preDestroy() throws IOException { - closeFlag.set(true); - if (listener != null && !listener.isClosed()) { - listener.close(); - } - service.shutdown(); - logger.info("XMPP server destroyed"); - } - - public int getServerPort() { - return s2sPort; - } -} |