diff options
Diffstat (limited to 'conversations/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java')
| -rw-r--r-- | conversations/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java | 1130 |
1 files changed, 1130 insertions, 0 deletions
diff --git a/conversations/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java b/conversations/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java new file mode 100644 index 00000000..903dc59d --- /dev/null +++ b/conversations/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java @@ -0,0 +1,1130 @@ +package eu.siacs.conversations.xmpp; + +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.math.BigInteger; +import java.net.Socket; +import java.net.UnknownHostException; +import java.security.KeyManagementException; +import java.security.NoSuchAlgorithmException; +import java.security.SecureRandom; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.HashMap; +import java.util.Hashtable; +import java.util.LinkedList; +import java.util.List; +import java.util.Map.Entry; + +import javax.net.ssl.HostnameVerifier; +import javax.net.ssl.SSLContext; +import javax.net.ssl.SSLSocket; +import javax.net.ssl.SSLSocketFactory; + +import javax.net.ssl.X509TrustManager; + +import org.apache.http.conn.ssl.StrictHostnameVerifier; +import org.xmlpull.v1.XmlPullParserException; + +import de.duenndns.ssl.MemorizingTrustManager; + +import android.content.Context; +import android.content.SharedPreferences; +import android.os.Bundle; +import android.os.PowerManager; +import android.os.PowerManager.WakeLock; +import android.os.SystemClock; +import android.preference.PreferenceManager; +import android.util.Log; +import android.util.SparseArray; +import eu.siacs.conversations.Config; +import eu.siacs.conversations.entities.Account; +import eu.siacs.conversations.services.XmppConnectionService; +import eu.siacs.conversations.utils.CryptoHelper; +import eu.siacs.conversations.utils.DNSHelper; +import eu.siacs.conversations.utils.zlib.ZLibOutputStream; +import eu.siacs.conversations.utils.zlib.ZLibInputStream; +import eu.siacs.conversations.xml.Element; +import eu.siacs.conversations.xml.Tag; +import eu.siacs.conversations.xml.TagWriter; +import eu.siacs.conversations.xml.XmlReader; +import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived; +import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket; +import eu.siacs.conversations.xmpp.stanzas.AbstractStanza; +import eu.siacs.conversations.xmpp.stanzas.IqPacket; +import eu.siacs.conversations.xmpp.stanzas.MessagePacket; +import eu.siacs.conversations.xmpp.stanzas.PresencePacket; +import eu.siacs.conversations.xmpp.stanzas.csi.ActivePacket; +import eu.siacs.conversations.xmpp.stanzas.csi.InactivePacket; +import eu.siacs.conversations.xmpp.stanzas.streammgmt.AckPacket; +import eu.siacs.conversations.xmpp.stanzas.streammgmt.EnablePacket; +import eu.siacs.conversations.xmpp.stanzas.streammgmt.RequestPacket; +import eu.siacs.conversations.xmpp.stanzas.streammgmt.ResumePacket; + +public class XmppConnection implements Runnable { + + protected Account account; + + private WakeLock wakeLock; + + private SecureRandom mRandom; + + private Socket socket; + private XmlReader tagReader; + private TagWriter tagWriter; + + private Features features = new Features(this); + + private boolean shouldBind = true; + private boolean shouldAuthenticate = true; + private Element streamFeatures; + private HashMap<String, List<String>> disco = new HashMap<String, List<String>>(); + + private String streamId = null; + private int smVersion = 3; + private SparseArray<String> messageReceipts = new SparseArray<String>(); + + private boolean usingCompression = false; + private boolean usingEncryption = false; + + private int stanzasReceived = 0; + private int stanzasSent = 0; + + private long lastPaketReceived = 0; + private long lastPingSent = 0; + private long lastConnect = 0; + private long lastSessionStarted = 0; + + private int attempt = 0; + + private static final int PACKET_IQ = 0; + private static final int PACKET_MESSAGE = 1; + private static final int PACKET_PRESENCE = 2; + + private Hashtable<String, PacketReceived> packetCallbacks = new Hashtable<String, PacketReceived>(); + private OnPresencePacketReceived presenceListener = null; + private OnJinglePacketReceived jingleListener = null; + private OnIqPacketReceived unregisteredIqListener = null; + private OnMessagePacketReceived messageListener = null; + private OnStatusChanged statusListener = null; + private OnBindListener bindListener = null; + private OnMessageAcknowledged acknowledgedListener = null; + private MemorizingTrustManager mMemorizingTrustManager; + private final Context applicationContext; + + public XmppConnection(Account account, XmppConnectionService service) { + this.mRandom = service.getRNG(); + this.mMemorizingTrustManager = service.getMemorizingTrustManager(); + this.account = account; + this.wakeLock = service.getPowerManager().newWakeLock( + PowerManager.PARTIAL_WAKE_LOCK, account.getJid()); + tagWriter = new TagWriter(); + applicationContext = service.getApplicationContext(); + } + + protected void changeStatus(int nextStatus) { + if (account.getStatus() != nextStatus) { + if ((nextStatus == Account.STATUS_OFFLINE) + && (account.getStatus() != Account.STATUS_CONNECTING) + && (account.getStatus() != Account.STATUS_ONLINE) + && (account.getStatus() != Account.STATUS_DISABLED)) { + return; + } + if (nextStatus == Account.STATUS_ONLINE) { + this.attempt = 0; + } + account.setStatus(nextStatus); + if (statusListener != null) { + statusListener.onStatusChanged(account); + } + } + } + + protected void connect() { + Log.d(Config.LOGTAG, account.getJid() + ": connecting"); + usingCompression = false; + usingEncryption = false; + lastConnect = SystemClock.elapsedRealtime(); + lastPingSent = SystemClock.elapsedRealtime(); + this.attempt++; + try { + shouldAuthenticate = shouldBind = !account + .isOptionSet(Account.OPTION_REGISTER); + tagReader = new XmlReader(wakeLock); + tagWriter = new TagWriter(); + packetCallbacks.clear(); + this.changeStatus(Account.STATUS_CONNECTING); + Bundle namePort = DNSHelper.getSRVRecord(account.getServer()); + if ("timeout".equals(namePort.getString("error"))) { + Log.d(Config.LOGTAG, account.getJid() + ": dns timeout"); + this.changeStatus(Account.STATUS_OFFLINE); + return; + } + String srvRecordServer = namePort.getString("name"); + String srvIpServer = namePort.getString("ipv4"); + int srvRecordPort = namePort.getInt("port"); + if (srvRecordServer != null) { + if (srvIpServer != null) { + Log.d(Config.LOGTAG, account.getJid() + + ": using values from dns " + srvRecordServer + + "[" + srvIpServer + "]:" + srvRecordPort); + socket = new Socket(srvIpServer, srvRecordPort); + } else { + boolean socketError = true; + int srvIndex = 0; + while (socketError + && namePort.containsKey("name" + srvIndex)) { + try { + srvRecordServer = namePort.getString("name" + + srvIndex); + srvRecordPort = namePort.getInt("port" + srvIndex); + Log.d(Config.LOGTAG, account.getJid() + + ": using values from dns " + + srvRecordServer + ":" + srvRecordPort); + socket = new Socket(srvRecordServer, srvRecordPort); + socketError = false; + } catch (UnknownHostException e) { + srvIndex++; + if (!namePort.containsKey("name" + srvIndex)) { + throw e; + } + } catch (IOException e) { + srvIndex++; + if (!namePort.containsKey("name" + srvIndex)) { + throw e; + } + } + } + } + } else if (namePort.containsKey("error") + && "nosrv".equals(namePort.getString("error", null))) { + socket = new Socket(account.getServer(), 5222); + } else { + Log.d(Config.LOGTAG, account.getJid() + + ": timeout in DNS resolution"); + changeStatus(Account.STATUS_OFFLINE); + return; + } + OutputStream out = socket.getOutputStream(); + tagWriter.setOutputStream(out); + InputStream in = socket.getInputStream(); + tagReader.setInputStream(in); + tagWriter.beginDocument(); + sendStartStream(); + Tag nextTag; + while ((nextTag = tagReader.readTag()) != null) { + if (nextTag.isStart("stream")) { + processStream(nextTag); + break; + } else { + Log.d(Config.LOGTAG, + "found unexpected tag: " + nextTag.getName()); + return; + } + } + if (socket.isConnected()) { + socket.close(); + } + } catch (UnknownHostException e) { + this.changeStatus(Account.STATUS_SERVER_NOT_FOUND); + if (wakeLock.isHeld()) { + try { + wakeLock.release(); + } catch (RuntimeException re) { + } + } + return; + } catch (IOException e) { + this.changeStatus(Account.STATUS_OFFLINE); + if (wakeLock.isHeld()) { + try { + wakeLock.release(); + } catch (RuntimeException re) { + } + } + return; + } catch (NoSuchAlgorithmException e) { + this.changeStatus(Account.STATUS_OFFLINE); + Log.d(Config.LOGTAG, "compression exception " + e.getMessage()); + if (wakeLock.isHeld()) { + try { + wakeLock.release(); + } catch (RuntimeException re) { + } + } + return; + } catch (XmlPullParserException e) { + this.changeStatus(Account.STATUS_OFFLINE); + Log.d(Config.LOGTAG, "xml exception " + e.getMessage()); + if (wakeLock.isHeld()) { + try { + wakeLock.release(); + } catch (RuntimeException re) { + } + } + return; + } + + } + + @Override + public void run() { + connect(); + } + + private void processStream(Tag currentTag) throws XmlPullParserException, + IOException, NoSuchAlgorithmException { + Tag nextTag = tagReader.readTag(); + while ((nextTag != null) && (!nextTag.isEnd("stream"))) { + if (nextTag.isStart("error")) { + processStreamError(nextTag); + } else if (nextTag.isStart("features")) { + processStreamFeatures(nextTag); + } else if (nextTag.isStart("proceed")) { + switchOverToTls(nextTag); + } else if (nextTag.isStart("compressed")) { + switchOverToZLib(nextTag); + } else if (nextTag.isStart("success")) { + Log.d(Config.LOGTAG, account.getJid() + ": logged in"); + tagReader.readTag(); + tagReader.reset(); + sendStartStream(); + processStream(tagReader.readTag()); + break; + } else if (nextTag.isStart("failure")) { + tagReader.readElement(nextTag); + changeStatus(Account.STATUS_UNAUTHORIZED); + } else if (nextTag.isStart("challenge")) { + String challange = tagReader.readElement(nextTag).getContent(); + Element response = new Element("response"); + response.setAttribute("xmlns", + "urn:ietf:params:xml:ns:xmpp-sasl"); + response.setContent(CryptoHelper.saslDigestMd5(account, + challange, mRandom)); + tagWriter.writeElement(response); + } else if (nextTag.isStart("enabled")) { + Element enabled = tagReader.readElement(nextTag); + if ("true".equals(enabled.getAttribute("resume"))) { + this.streamId = enabled.getAttribute("id"); + Log.d(Config.LOGTAG, account.getJid() + + ": stream managment(" + smVersion + + ") enabled (resumable)"); + } else { + Log.d(Config.LOGTAG, account.getJid() + + ": stream managment(" + smVersion + ") enabled"); + } + this.lastSessionStarted = SystemClock.elapsedRealtime(); + this.stanzasReceived = 0; + RequestPacket r = new RequestPacket(smVersion); + tagWriter.writeStanzaAsync(r); + } else if (nextTag.isStart("resumed")) { + lastPaketReceived = SystemClock.elapsedRealtime(); + Element resumed = tagReader.readElement(nextTag); + String h = resumed.getAttribute("h"); + try { + int serverCount = Integer.parseInt(h); + if (serverCount != stanzasSent) { + Log.d(Config.LOGTAG, account.getJid() + + ": session resumed with lost packages"); + stanzasSent = serverCount; + } else { + Log.d(Config.LOGTAG, account.getJid() + + ": session resumed"); + } + if (acknowledgedListener != null) { + for (int i = 0; i < messageReceipts.size(); ++i) { + if (serverCount >= messageReceipts.keyAt(i)) { + acknowledgedListener.onMessageAcknowledged( + account, messageReceipts.valueAt(i)); + } + } + } + messageReceipts.clear(); + } catch (NumberFormatException e) { + + } + sendInitialPing(); + + } else if (nextTag.isStart("r")) { + tagReader.readElement(nextTag); + AckPacket ack = new AckPacket(this.stanzasReceived, smVersion); + tagWriter.writeStanzaAsync(ack); + } else if (nextTag.isStart("a")) { + Element ack = tagReader.readElement(nextTag); + lastPaketReceived = SystemClock.elapsedRealtime(); + int serverSequence = Integer.parseInt(ack.getAttribute("h")); + String msgId = this.messageReceipts.get(serverSequence); + if (msgId != null) { + if (this.acknowledgedListener != null) { + this.acknowledgedListener.onMessageAcknowledged( + account, msgId); + } + this.messageReceipts.remove(serverSequence); + } + } else if (nextTag.isStart("failed")) { + tagReader.readElement(nextTag); + Log.d(Config.LOGTAG, account.getJid() + ": resumption failed"); + streamId = null; + if (account.getStatus() != Account.STATUS_ONLINE) { + sendBindRequest(); + } + } else if (nextTag.isStart("iq")) { + processIq(nextTag); + } else if (nextTag.isStart("message")) { + processMessage(nextTag); + } else if (nextTag.isStart("presence")) { + processPresence(nextTag); + } + nextTag = tagReader.readTag(); + } + if (account.getStatus() == Account.STATUS_ONLINE) { + account.setStatus(Account.STATUS_OFFLINE); + if (statusListener != null) { + statusListener.onStatusChanged(account); + } + } + } + + private void sendInitialPing() { + Log.d(Config.LOGTAG, account.getJid() + ": sending intial ping"); + IqPacket iq = new IqPacket(IqPacket.TYPE_GET); + iq.setFrom(account.getFullJid()); + iq.addChild("ping", "urn:xmpp:ping"); + this.sendIqPacket(iq, new OnIqPacketReceived() { + + @Override + public void onIqPacketReceived(Account account, IqPacket packet) { + Log.d(Config.LOGTAG, account.getJid() + + ": online with resource " + account.getResource()); + changeStatus(Account.STATUS_ONLINE); + } + }); + } + + private Element processPacket(Tag currentTag, int packetType) + throws XmlPullParserException, IOException { + Element element; + switch (packetType) { + case PACKET_IQ: + element = new IqPacket(); + break; + case PACKET_MESSAGE: + element = new MessagePacket(); + break; + case PACKET_PRESENCE: + element = new PresencePacket(); + break; + default: + return null; + } + element.setAttributes(currentTag.getAttributes()); + Tag nextTag = tagReader.readTag(); + if (nextTag == null) { + throw new IOException("interrupted mid tag"); + } + while (!nextTag.isEnd(element.getName())) { + if (!nextTag.isNo()) { + Element child = tagReader.readElement(nextTag); + String type = currentTag.getAttribute("type"); + if (packetType == PACKET_IQ + && "jingle".equals(child.getName()) + && ("set".equalsIgnoreCase(type) || "get" + .equalsIgnoreCase(type))) { + element = new JinglePacket(); + element.setAttributes(currentTag.getAttributes()); + } + element.addChild(child); + } + nextTag = tagReader.readTag(); + if (nextTag == null) { + throw new IOException("interrupted mid tag"); + } + } + ++stanzasReceived; + lastPaketReceived = SystemClock.elapsedRealtime(); + return element; + } + + private void processIq(Tag currentTag) throws XmlPullParserException, + IOException { + IqPacket packet = (IqPacket) processPacket(currentTag, PACKET_IQ); + + if (packet.getId() == null) { + return; // an iq packet without id is definitely invalid + } + + if (packet instanceof JinglePacket) { + if (this.jingleListener != null) { + this.jingleListener.onJinglePacketReceived(account, + (JinglePacket) packet); + } + } else { + if (packetCallbacks.containsKey(packet.getId())) { + if (packetCallbacks.get(packet.getId()) instanceof OnIqPacketReceived) { + ((OnIqPacketReceived) packetCallbacks.get(packet.getId())) + .onIqPacketReceived(account, packet); + } + + packetCallbacks.remove(packet.getId()); + } else if ((packet.getType() == IqPacket.TYPE_GET || packet + .getType() == IqPacket.TYPE_SET) + && this.unregisteredIqListener != null) { + this.unregisteredIqListener.onIqPacketReceived(account, packet); + } + } + } + + private void processMessage(Tag currentTag) throws XmlPullParserException, + IOException { + MessagePacket packet = (MessagePacket) processPacket(currentTag, + PACKET_MESSAGE); + String id = packet.getAttribute("id"); + if ((id != null) && (packetCallbacks.containsKey(id))) { + if (packetCallbacks.get(id) instanceof OnMessagePacketReceived) { + ((OnMessagePacketReceived) packetCallbacks.get(id)) + .onMessagePacketReceived(account, packet); + } + packetCallbacks.remove(id); + } else if (this.messageListener != null) { + this.messageListener.onMessagePacketReceived(account, packet); + } + } + + private void processPresence(Tag currentTag) throws XmlPullParserException, + IOException { + PresencePacket packet = (PresencePacket) processPacket(currentTag, + PACKET_PRESENCE); + String id = packet.getAttribute("id"); + if ((id != null) && (packetCallbacks.containsKey(id))) { + if (packetCallbacks.get(id) instanceof OnPresencePacketReceived) { + ((OnPresencePacketReceived) packetCallbacks.get(id)) + .onPresencePacketReceived(account, packet); + } + packetCallbacks.remove(id); + } else if (this.presenceListener != null) { + this.presenceListener.onPresencePacketReceived(account, packet); + } + } + + private void sendCompressionZlib() throws IOException { + Element compress = new Element("compress"); + compress.setAttribute("xmlns", "http://jabber.org/protocol/compress"); + compress.addChild("method").setContent("zlib"); + tagWriter.writeElement(compress); + } + + private void switchOverToZLib(Tag currentTag) + throws XmlPullParserException, IOException, + NoSuchAlgorithmException { + tagReader.readTag(); // read tag close + tagWriter.setOutputStream(new ZLibOutputStream(tagWriter + .getOutputStream())); + tagReader + .setInputStream(new ZLibInputStream(tagReader.getInputStream())); + + sendStartStream(); + Log.d(Config.LOGTAG, account.getJid() + ": compression enabled"); + usingCompression = true; + processStream(tagReader.readTag()); + } + + private void sendStartTLS() throws IOException { + Tag startTLS = Tag.empty("starttls"); + startTLS.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-tls"); + tagWriter.writeTag(startTLS); + } + + private SharedPreferences getPreferences() { + return PreferenceManager + .getDefaultSharedPreferences(applicationContext); + } + + private boolean enableLegacySSL() { + return getPreferences().getBoolean("enable_legacy_ssl", false); + } + + private void switchOverToTls(Tag currentTag) throws XmlPullParserException, + IOException { + tagReader.readTag(); + try { + SSLContext sc = SSLContext.getInstance("TLS"); + sc.init(null, + new X509TrustManager[] { this.mMemorizingTrustManager }, + mRandom); + SSLSocketFactory factory = sc.getSocketFactory(); + + HostnameVerifier verifier = this.mMemorizingTrustManager + .wrapHostnameVerifier(new StrictHostnameVerifier()); + SSLSocket sslSocket = (SSLSocket) factory.createSocket(socket, + socket.getInetAddress().getHostAddress(), socket.getPort(), + true); + + // Support all protocols except legacy SSL. + // The min SDK version prevents us having to worry about SSLv2. In + // future, this may be + // true of SSLv3 as well. + final String[] supportProtocols; + if (enableLegacySSL()) { + supportProtocols = sslSocket.getSupportedProtocols(); + } else { + final List<String> supportedProtocols = new LinkedList<String>( + Arrays.asList(sslSocket.getSupportedProtocols())); + supportedProtocols.remove("SSLv3"); + supportProtocols = new String[supportedProtocols.size()]; + supportedProtocols.toArray(supportProtocols); + } + sslSocket.setEnabledProtocols(supportProtocols); + + if (verifier != null + && !verifier.verify(account.getServer(), + sslSocket.getSession())) { + Log.d(Config.LOGTAG, account.getJid() + + ": host mismatch in TLS connection"); + sslSocket.close(); + throw new IOException(); + } + tagReader.setInputStream(sslSocket.getInputStream()); + tagWriter.setOutputStream(sslSocket.getOutputStream()); + sendStartStream(); + Log.d(Config.LOGTAG, account.getJid() + + ": TLS connection established"); + usingEncryption = true; + processStream(tagReader.readTag()); + sslSocket.close(); + } catch (NoSuchAlgorithmException e1) { + e1.printStackTrace(); + } catch (KeyManagementException e) { + e.printStackTrace(); + } + } + + private void sendSaslAuthPlain() throws IOException { + String saslString = CryptoHelper.saslPlain(account.getUsername(), + account.getPassword()); + Element auth = new Element("auth"); + auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl"); + auth.setAttribute("mechanism", "PLAIN"); + auth.setContent(saslString); + tagWriter.writeElement(auth); + } + + private void sendSaslAuthDigestMd5() throws IOException { + Element auth = new Element("auth"); + auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl"); + auth.setAttribute("mechanism", "DIGEST-MD5"); + tagWriter.writeElement(auth); + } + + private void processStreamFeatures(Tag currentTag) + throws XmlPullParserException, IOException { + this.streamFeatures = tagReader.readElement(currentTag); + if (this.streamFeatures.hasChild("starttls") && !usingEncryption) { + sendStartTLS(); + } else if (compressionAvailable()) { + sendCompressionZlib(); + } else if (this.streamFeatures.hasChild("register") + && account.isOptionSet(Account.OPTION_REGISTER) + && usingEncryption) { + sendRegistryRequest(); + } else if (!this.streamFeatures.hasChild("register") + && account.isOptionSet(Account.OPTION_REGISTER)) { + changeStatus(Account.STATUS_REGISTRATION_NOT_SUPPORTED); + disconnect(true); + } else if (this.streamFeatures.hasChild("mechanisms") + && shouldAuthenticate && usingEncryption) { + List<String> mechanisms = extractMechanisms(streamFeatures + .findChild("mechanisms")); + if (mechanisms.contains("PLAIN")) { + sendSaslAuthPlain(); + } else if (mechanisms.contains("DIGEST-MD5")) { + sendSaslAuthDigestMd5(); + } + } else if (this.streamFeatures.hasChild("sm", "urn:xmpp:sm:" + + smVersion) + && streamId != null) { + ResumePacket resume = new ResumePacket(this.streamId, + stanzasReceived, smVersion); + this.tagWriter.writeStanzaAsync(resume); + } else if (this.streamFeatures.hasChild("bind") && shouldBind) { + sendBindRequest(); + } else { + Log.d(Config.LOGTAG, account.getJid() + + ": incompatible server. disconnecting"); + disconnect(true); + } + } + + private boolean compressionAvailable() { + if (!this.streamFeatures.hasChild("compression", + "http://jabber.org/features/compress")) + return false; + if (!ZLibOutputStream.SUPPORTED) + return false; + if (!account.isOptionSet(Account.OPTION_USECOMPRESSION)) + return false; + + Element compression = this.streamFeatures.findChild("compression", + "http://jabber.org/features/compress"); + for (Element child : compression.getChildren()) { + if (!"method".equals(child.getName())) + continue; + + if ("zlib".equalsIgnoreCase(child.getContent())) { + return true; + } + } + return false; + } + + private List<String> extractMechanisms(Element stream) { + ArrayList<String> mechanisms = new ArrayList<String>(stream + .getChildren().size()); + for (Element child : stream.getChildren()) { + mechanisms.add(child.getContent()); + } + return mechanisms; + } + + private void sendRegistryRequest() { + IqPacket register = new IqPacket(IqPacket.TYPE_GET); + register.query("jabber:iq:register"); + register.setTo(account.getServer()); + sendIqPacket(register, new OnIqPacketReceived() { + + @Override + public void onIqPacketReceived(Account account, IqPacket packet) { + Element instructions = packet.query().findChild("instructions"); + if (packet.query().hasChild("username") + && (packet.query().hasChild("password"))) { + IqPacket register = new IqPacket(IqPacket.TYPE_SET); + Element username = new Element("username") + .setContent(account.getUsername()); + Element password = new Element("password") + .setContent(account.getPassword()); + register.query("jabber:iq:register").addChild(username); + register.query().addChild(password); + sendIqPacket(register, new OnIqPacketReceived() { + + @Override + public void onIqPacketReceived(Account account, + IqPacket packet) { + if (packet.getType() == IqPacket.TYPE_RESULT) { + account.setOption(Account.OPTION_REGISTER, + false); + changeStatus(Account.STATUS_REGISTRATION_SUCCESSFULL); + } else if (packet.hasChild("error") + && (packet.findChild("error") + .hasChild("conflict"))) { + changeStatus(Account.STATUS_REGISTRATION_CONFLICT); + } else { + changeStatus(Account.STATUS_REGISTRATION_FAILED); + Log.d(Config.LOGTAG, packet.toString()); + } + disconnect(true); + } + }); + } else { + changeStatus(Account.STATUS_REGISTRATION_FAILED); + disconnect(true); + Log.d(Config.LOGTAG, account.getJid() + + ": could not register. instructions are" + + instructions.getContent()); + } + } + }); + } + + private void sendBindRequest() throws IOException { + IqPacket iq = new IqPacket(IqPacket.TYPE_SET); + iq.addChild("bind", "urn:ietf:params:xml:ns:xmpp-bind") + .addChild("resource").setContent(account.getResource()); + this.sendUnboundIqPacket(iq, new OnIqPacketReceived() { + @Override + public void onIqPacketReceived(Account account, IqPacket packet) { + Element bind = packet.findChild("bind"); + if (bind != null) { + Element jid = bind.findChild("jid"); + if (jid != null && jid.getContent() != null) { + account.setResource(jid.getContent().split("/", 2)[1]); + if (streamFeatures.hasChild("sm", "urn:xmpp:sm:3")) { + smVersion = 3; + EnablePacket enable = new EnablePacket(smVersion); + tagWriter.writeStanzaAsync(enable); + stanzasSent = 0; + messageReceipts.clear(); + } else if (streamFeatures.hasChild("sm", + "urn:xmpp:sm:2")) { + smVersion = 2; + EnablePacket enable = new EnablePacket(smVersion); + tagWriter.writeStanzaAsync(enable); + stanzasSent = 0; + messageReceipts.clear(); + } + sendServiceDiscoveryInfo(account.getServer()); + sendServiceDiscoveryItems(account.getServer()); + if (bindListener != null) { + bindListener.onBind(account); + } + sendInitialPing(); + } else { + disconnect(true); + } + } else { + disconnect(true); + } + } + }); + if (this.streamFeatures.hasChild("session")) { + Log.d(Config.LOGTAG, account.getJid() + + ": sending deprecated session"); + IqPacket startSession = new IqPacket(IqPacket.TYPE_SET); + startSession.addChild("session", + "urn:ietf:params:xml:ns:xmpp-session"); + this.sendUnboundIqPacket(startSession, null); + } + } + + private void sendServiceDiscoveryInfo(final String server) { + IqPacket iq = new IqPacket(IqPacket.TYPE_GET); + iq.setTo(server); + iq.query("http://jabber.org/protocol/disco#info"); + this.sendIqPacket(iq, new OnIqPacketReceived() { + + @Override + public void onIqPacketReceived(Account account, IqPacket packet) { + List<Element> elements = packet.query().getChildren(); + List<String> features = new ArrayList<String>(); + for (int i = 0; i < elements.size(); ++i) { + if (elements.get(i).getName().equals("feature")) { + features.add(elements.get(i).getAttribute("var")); + } + } + disco.put(server, features); + + if (account.getServer().equals(server)) { + enableAdvancedStreamFeatures(); + } + } + }); + } + + private void enableAdvancedStreamFeatures() { + if (getFeatures().carbons()) { + sendEnableCarbons(); + } + } + + private void sendServiceDiscoveryItems(final String server) { + IqPacket iq = new IqPacket(IqPacket.TYPE_GET); + iq.setTo(server); + iq.query("http://jabber.org/protocol/disco#items"); + this.sendIqPacket(iq, new OnIqPacketReceived() { + + @Override + public void onIqPacketReceived(Account account, IqPacket packet) { + List<Element> elements = packet.query().getChildren(); + for (int i = 0; i < elements.size(); ++i) { + if (elements.get(i).getName().equals("item")) { + String jid = elements.get(i).getAttribute("jid"); + sendServiceDiscoveryInfo(jid); + } + } + } + }); + } + + private void sendEnableCarbons() { + IqPacket iq = new IqPacket(IqPacket.TYPE_SET); + iq.addChild("enable", "urn:xmpp:carbons:2"); + this.sendIqPacket(iq, new OnIqPacketReceived() { + + @Override + public void onIqPacketReceived(Account account, IqPacket packet) { + if (!packet.hasChild("error")) { + Log.d(Config.LOGTAG, account.getJid() + + ": successfully enabled carbons"); + } else { + Log.d(Config.LOGTAG, account.getJid() + + ": error enableing carbons " + packet.toString()); + } + } + }); + } + + private void processStreamError(Tag currentTag) + throws XmlPullParserException, IOException { + Element streamError = tagReader.readElement(currentTag); + if (streamError != null && streamError.hasChild("conflict")) { + String resource = account.getResource().split("\\.")[0]; + account.setResource(resource + "." + nextRandomId()); + Log.d(Config.LOGTAG, + account.getJid() + ": switching resource due to conflict (" + + account.getResource() + ")"); + } + } + + private void sendStartStream() throws IOException { + Tag stream = Tag.start("stream:stream"); + stream.setAttribute("from", account.getJid()); + stream.setAttribute("to", account.getServer()); + stream.setAttribute("version", "1.0"); + stream.setAttribute("xml:lang", "en"); + stream.setAttribute("xmlns", "jabber:client"); + stream.setAttribute("xmlns:stream", "http://etherx.jabber.org/streams"); + tagWriter.writeTag(stream); + } + + private String nextRandomId() { + return new BigInteger(50, mRandom).toString(32); + } + + public void sendIqPacket(IqPacket packet, OnIqPacketReceived callback) { + if (packet.getId() == null) { + String id = nextRandomId(); + packet.setAttribute("id", id); + } + packet.setFrom(account.getFullJid()); + this.sendPacket(packet, callback); + } + + public void sendUnboundIqPacket(IqPacket packet, OnIqPacketReceived callback) { + if (packet.getId() == null) { + String id = nextRandomId(); + packet.setAttribute("id", id); + } + this.sendPacket(packet, callback); + } + + public void sendMessagePacket(MessagePacket packet) { + this.sendPacket(packet, null); + } + + public void sendPresencePacket(PresencePacket packet) { + this.sendPacket(packet, null); + } + + private synchronized void sendPacket(final AbstractStanza packet, + PacketReceived callback) { + if (packet.getName().equals("iq") || packet.getName().equals("message") + || packet.getName().equals("presence")) { + ++stanzasSent; + } + tagWriter.writeStanzaAsync(packet); + if (packet instanceof MessagePacket && packet.getId() != null + && this.streamId != null) { + Log.d(Config.LOGTAG, "request delivery report for stanza " + + stanzasSent); + this.messageReceipts.put(stanzasSent, packet.getId()); + tagWriter.writeStanzaAsync(new RequestPacket(this.smVersion)); + } + if (callback != null) { + if (packet.getId() == null) { + packet.setId(nextRandomId()); + } + packetCallbacks.put(packet.getId(), callback); + } + } + + public void sendPing() { + if (streamFeatures.hasChild("sm")) { + tagWriter.writeStanzaAsync(new RequestPacket(smVersion)); + } else { + IqPacket iq = new IqPacket(IqPacket.TYPE_GET); + iq.setFrom(account.getFullJid()); + iq.addChild("ping", "urn:xmpp:ping"); + this.sendIqPacket(iq, null); + } + this.lastPingSent = SystemClock.elapsedRealtime(); + } + + public void setOnMessagePacketReceivedListener( + OnMessagePacketReceived listener) { + this.messageListener = listener; + } + + public void setOnUnregisteredIqPacketReceivedListener( + OnIqPacketReceived listener) { + this.unregisteredIqListener = listener; + } + + public void setOnPresencePacketReceivedListener( + OnPresencePacketReceived listener) { + this.presenceListener = listener; + } + + public void setOnJinglePacketReceivedListener( + OnJinglePacketReceived listener) { + this.jingleListener = listener; + } + + public void setOnStatusChangedListener(OnStatusChanged listener) { + this.statusListener = listener; + } + + public void setOnBindListener(OnBindListener listener) { + this.bindListener = listener; + } + + public void setOnMessageAcknowledgeListener(OnMessageAcknowledged listener) { + this.acknowledgedListener = listener; + } + + public void disconnect(boolean force) { + Log.d(Config.LOGTAG, account.getJid() + ": disconnecting"); + try { + if (force) { + socket.close(); + return; + } + new Thread(new Runnable() { + + @Override + public void run() { + if (tagWriter.isActive()) { + tagWriter.finish(); + try { + while (!tagWriter.finished()) { + Log.d(Config.LOGTAG, "not yet finished"); + Thread.sleep(100); + } + tagWriter.writeTag(Tag.end("stream:stream")); + socket.close(); + } catch (IOException e) { + Log.d(Config.LOGTAG, + "io exception during disconnect"); + } catch (InterruptedException e) { + Log.d(Config.LOGTAG, "interrupted"); + } + } + } + }).start(); + } catch (IOException e) { + Log.d(Config.LOGTAG, "io exception during disconnect"); + } + } + + public List<String> findDiscoItemsByFeature(String feature) { + List<String> items = new ArrayList<String>(); + for (Entry<String, List<String>> cursor : disco.entrySet()) { + if (cursor.getValue().contains(feature)) { + items.add(cursor.getKey()); + } + } + return items; + } + + public String findDiscoItemByFeature(String feature) { + List<String> items = findDiscoItemsByFeature(feature); + if (items.size() >= 1) { + return items.get(0); + } + return null; + } + + public void r() { + this.tagWriter.writeStanzaAsync(new RequestPacket(smVersion)); + } + + public String getMucServer() { + return findDiscoItemByFeature("http://jabber.org/protocol/muc"); + } + + public int getTimeToNextAttempt() { + int interval = (int) (25 * Math.pow(1.5, attempt)); + int secondsSinceLast = (int) ((SystemClock.elapsedRealtime() - this.lastConnect) / 1000); + return interval - secondsSinceLast; + } + + public int getAttempt() { + return this.attempt; + } + + public Features getFeatures() { + return this.features; + } + + public class Features { + XmppConnection connection; + + public Features(XmppConnection connection) { + this.connection = connection; + } + + private boolean hasDiscoFeature(String server, String feature) { + if (!connection.disco.containsKey(server)) { + return false; + } + return connection.disco.get(server).contains(feature); + } + + public boolean carbons() { + return hasDiscoFeature(account.getServer(), "urn:xmpp:carbons:2"); + } + + public boolean sm() { + return streamId != null; + } + + public boolean csi() { + if (connection.streamFeatures == null) { + return false; + } else { + return connection.streamFeatures.hasChild("csi", + "urn:xmpp:csi:0"); + } + } + + public boolean pubsub() { + return hasDiscoFeature(account.getServer(), + "http://jabber.org/protocol/pubsub#publish"); + } + + public boolean rosterVersioning() { + if (connection.streamFeatures == null) { + return false; + } else { + return connection.streamFeatures.hasChild("ver"); + } + } + + public boolean streamhost() { + return connection + .findDiscoItemByFeature("http://jabber.org/protocol/bytestreams") != null; + } + + public boolean compression() { + return connection.usingCompression; + } + } + + public long getLastSessionEstablished() { + long diff; + if (this.lastSessionStarted == 0) { + diff = SystemClock.elapsedRealtime() - this.lastConnect; + } else { + diff = SystemClock.elapsedRealtime() - this.lastSessionStarted; + } + return System.currentTimeMillis() - diff; + } + + public long getLastConnect() { + return this.lastConnect; + } + + public long getLastPingSent() { + return this.lastPingSent; + } + + public long getLastPacketReceived() { + return this.lastPaketReceived; + } + + public void sendActive() { + this.sendPacket(new ActivePacket(), null); + } + + public void sendInactive() { + this.sendPacket(new InactivePacket(), null); + } +} |