Java tutorial
/* BEEM is a videoconference application on the Android Platform. Copyright (C) 2009 by Frederic-Charles Barthelery, Jean-Manuel Da Silva, Nikita Kozlov, Philippe Lago, Jean Baptiste Vergely, Vincent Veronis. This file is part of BEEM. BEEM is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. BEEM 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 General Public License for more details. You should have received a copy of the GNU General Public License along with BEEM. If not, see <http://www.gnu.org/licenses/>. Please send bug reports with examples or suggestions to contact@beem-project.com or http://dev.beem-project.com/ Epitech, hereby disclaims all copyright interest in the program "Beem" written by Frederic-Charles Barthelery, Jean-Manuel Da Silva, Nikita Kozlov, Philippe Lago, Jean Baptiste Vergely, Vincent Veronis. Nicolas Sadirac, November 26, 2009 President of Epitech. Flavien Astraud, November 26, 2009 Head of the EIP Laboratory. */ package com.beem.project.beem.service; import java.util.Iterator; import java.util.List; import android.app.Notification; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.os.RemoteCallbackList; import android.os.RemoteException; import android.support.v4.app.NotificationCompat; import android.util.Log; import com.beem.project.beem.BeemApplication; import com.beem.project.beem.BeemService; import com.beem.project.beem.R; import com.beem.project.beem.service.aidl.IBeemConnectionListener; import com.beem.project.beem.service.aidl.IChatManager; import com.beem.project.beem.service.aidl.IRoster; import com.beem.project.beem.service.aidl.IXmppConnection; import com.beem.project.beem.smack.avatar.AvatarCache; import com.beem.project.beem.smack.avatar.AvatarListener; import com.beem.project.beem.smack.avatar.AvatarMetadataExtension; import com.beem.project.beem.smack.pep.PepSubManager; import com.beem.project.beem.smack.ping.PingExtension; import com.beem.project.beem.ui.ChangeStatus; import com.beem.project.beem.ui.Subscription; import com.beem.project.beem.utils.BeemBroadcastReceiver; import com.beem.project.beem.utils.Status; import org.jivesoftware.smack.ConnectionConfiguration; import org.jivesoftware.smack.ConnectionListener; import org.jivesoftware.smack.PacketListener; import org.jivesoftware.smack.PrivacyListManager; import org.jivesoftware.smack.Roster; import org.jivesoftware.smack.XMPPConnection; import org.jivesoftware.smack.XMPPException; import org.jivesoftware.smack.filter.PacketFilter; import org.jivesoftware.smack.filter.PacketTypeFilter; import org.jivesoftware.smack.packet.IQ; import org.jivesoftware.smack.packet.Packet; import org.jivesoftware.smack.packet.Presence; import org.jivesoftware.smack.util.StringUtils; import org.jivesoftware.smackx.ChatStateManager; import org.jivesoftware.smackx.ServiceDiscoveryManager; import org.jivesoftware.smackx.entitycaps.EntityCapsManager; import org.jivesoftware.smackx.packet.DiscoverInfo; /** * This class implements an adapter for XMPPConnection. * @author darisk */ public class XmppConnectionAdapter extends IXmppConnection.Stub { /** * Beem connection closed Intent name. */ private static final int SMACK_PRIORITY_MIN = -128; private static final int SMACK_PRIORITY_MAX = 128; private static final String TAG = "XMPPConnectionAdapter"; private final XMPPConnection mAdaptee; private IChatManager mChatManager; private final String mLogin; private final String mPassword; private String mResource; private String mErrorMsg; private RosterAdapter mRoster; private int mPreviousPriority; private int mPreviousMode; private String mPreviousStatus; private PrivacyListManagerAdapter mPrivacyListManager; private ChatStateManager mChatStateManager; private final BeemService mService; private BeemApplication mApplication; private BeemAvatarManager mAvatarManager; private PepSubManager mPepManager; private SharedPreferences mPref; private final RemoteCallbackList<IBeemConnectionListener> mRemoteConnListeners = new RemoteCallbackList<IBeemConnectionListener>(); private final SubscribePacketListener mSubscribePacketListener = new SubscribePacketListener(); private final PingListener mPingListener = new PingListener(); private final ConnexionListenerAdapter mConListener = new ConnexionListenerAdapter(); private UserInfo mUserInfo; private final UserInfoManager mUserInfoManager = new UserInfoManager(); /** * Constructor. * @param config Configuration to use in order to connect * @param login login to use on connect * @param password password to use on connect * @param service the background service associated with the connection. */ public XmppConnectionAdapter(final ConnectionConfiguration config, final String login, final String password, final BeemService service) { this(new XMPPConnection(config), login, password, service); } /** * Constructor. * @param serviceName name of the service to connect to * @param login login to use on connect * @param password password to use on connect * @param service the background service associated with the connection. */ public XmppConnectionAdapter(final String serviceName, final String login, final String password, final BeemService service) { this(new XMPPConnection(serviceName), login, password, service); } /** * Constructor. * @param con The connection to adapt * @param login The login to use * @param password The password to use * @param service the background service associated with the connection. */ public XmppConnectionAdapter(final XMPPConnection con, final String login, final String password, final BeemService service) { mAdaptee = con; PrivacyListManager.getInstanceFor(mAdaptee); mLogin = login; mPassword = password; mService = service; Context ctx = mService.getApplicationContext(); if (ctx instanceof BeemApplication) { mApplication = (BeemApplication) ctx; } mPref = mService.getServicePreference(); try { mPreviousPriority = Integer.parseInt(mPref.getString(BeemApplication.CONNECTION_PRIORITY_KEY, "0")); } catch (NumberFormatException ex) { mPreviousPriority = 0; } mResource = mPref.getString(BeemApplication.CONNECTION_RESOURCE_KEY, "Beem"); } /** * {@inheritDoc} */ @Override public void addConnectionListener(IBeemConnectionListener listen) throws RemoteException { if (listen != null) mRemoteConnListeners.register(listen); } @Override public boolean connect() throws RemoteException { if (mAdaptee.isConnected()) return true; else { try { mAdaptee.connect(); mAdaptee.addConnectionListener(mConListener); return true; } catch (XMPPException e) { Log.e(TAG, "Error while connecting", e); try { //TODO NIKITA DOES SOME SHIT !!! Fix this monstruosity String str = mService.getResources().getString(mService.getResources().getIdentifier( e.getXMPPError().getCondition().replace("-", "_"), "string", "com.beem.project.beem")); mErrorMsg = str; } catch (NullPointerException e2) { if (!"".equals(e.getMessage())) mErrorMsg = e.getMessage(); else mErrorMsg = e.toString(); } } return false; } } @Override public boolean login() throws RemoteException { if (mAdaptee.isAuthenticated()) return true; if (!mAdaptee.isConnected()) return false; try { this.initFeatures(); // pour declarer les features xmpp qu'on // supporte PacketFilter filter = new PacketFilter() { @Override public boolean accept(Packet packet) { if (packet instanceof Presence) { Presence pres = (Presence) packet; if (pres.getType() == Presence.Type.subscribe) return true; } return false; } }; mAdaptee.addPacketListener(mSubscribePacketListener, filter); filter = new PacketTypeFilter(PingExtension.class); mAdaptee.addPacketListener(mPingListener, filter); mAdaptee.login(mLogin, mPassword, mResource); mUserInfo = new UserInfo(mAdaptee.getUser()); discoverServerFeatures(); mChatManager = new BeemChatManager(mAdaptee.getChatManager(), mService, mAdaptee.getRoster()); //nikita: I commented this line because of the logs provided in http://www.beem-project.com/issues/321 //Also, since the privacylistmanager isn't finished and used, it will be safer to not initialize it //mPrivacyListManager = new PrivacyListManagerAdapter(PrivacyListManager.getInstanceFor(mAdaptee)); mService.initJingle(mAdaptee); mApplication.setConnected(true); int mode = mPref.getInt(BeemApplication.STATUS_KEY, 0); String status = mPref.getString(BeemApplication.STATUS_TEXT_KEY, ""); changeStatus(mode, status); return true; } catch (XMPPException e) { Log.e(TAG, "Error while connecting", e); mErrorMsg = mService.getString(R.string.error_login_authentication); return false; } } /** * {@inheritDoc} */ @Override public final void connectAsync() throws RemoteException { if (mAdaptee.isConnected() || mAdaptee.isAuthenticated()) return; Thread t = new Thread(new Runnable() { @Override public void run() { try { connectSync(); } catch (RemoteException e) { Log.e(TAG, "Error while connecting asynchronously", e); } } }); t.start(); } /** * {@inheritDoc} */ @Override public boolean connectSync() throws RemoteException { if (connect()) return login(); return false; } /** * {@inheritDoc} */ @Override public void changeStatusAndPriority(int status, String msg, int priority) { Presence pres = new Presence(Presence.Type.available); String m; if (msg != null) m = msg; else m = mPreviousStatus; pres.setStatus(m); mPreviousStatus = m; Presence.Mode mode = Status.getPresenceModeFromStatus(status); if (mode != null) { pres.setMode(mode); mPreviousMode = status; } else { pres.setMode(Status.getPresenceModeFromStatus(mPreviousMode)); } int p = priority; if (priority < SMACK_PRIORITY_MIN) p = SMACK_PRIORITY_MIN; if (priority > SMACK_PRIORITY_MAX) p = SMACK_PRIORITY_MAX; mPreviousPriority = p; pres.setPriority(p); mAdaptee.sendPacket(pres); updateNotification(Status.getStatusFromPresence(pres), m); } /** * {@inheritDoc} */ @Override public void changeStatus(int status, String msg) { changeStatusAndPriority(status, msg, mPreviousPriority); } /** * Get the AvatarManager of this connection. * @return the AvatarManager or null if there is not */ public BeemAvatarManager getAvatarManager() { return mAvatarManager; } /** * get the previous status. * @return previous status. */ public String getPreviousStatus() { return mPreviousStatus; } /** * get the previous mode. * @return previous mode. */ public int getPreviousMode() { return mPreviousMode; } /** * Update the notification for the Beem status. * @param status the status to display. * @param text the text to display. */ private void updateNotification(int status, String text) { Notification mStatusNotification; mStatusNotification = new Notification(Status.getIconBarFromStatus(status), text, System.currentTimeMillis()); mStatusNotification.defaults = Notification.DEFAULT_LIGHTS; mStatusNotification.flags = Notification.FLAG_NO_CLEAR | Notification.FLAG_ONGOING_EVENT; mStatusNotification.setLatestEventInfo(mService, "Beem Status", text, PendingIntent.getActivity(mService, 0, new Intent(mService, ChangeStatus.class), 0)); // bypass the preferences for notification mService.getNotificationManager().notify(BeemService.NOTIFICATION_STATUS_ID, mStatusNotification); } /** * {@inheritDoc} */ @Override public boolean disconnect() { if (mAdaptee != null && mAdaptee.isConnected()) mAdaptee.disconnect(); return true; } /** * Get the Smack XmppConnection. * @return Smack XmppConnection */ public XMPPConnection getAdaptee() { return mAdaptee; } /** * {@inheritDoc} */ @Override public IChatManager getChatManager() throws RemoteException { return mChatManager; } /** * {@inheritDoc} */ @Override public IRoster getRoster() throws RemoteException { if (mRoster != null) return mRoster; Roster adap = mAdaptee.getRoster(); if (adap == null) return null; mRoster = new RosterAdapter(adap, mService, mAvatarManager); return mRoster; } /** * Get the user informations. * @return the user infos or null if not logged */ public UserInfo getUserInfo() { return mUserInfo; } /** * Returns true if currently authenticated by successfully calling the login method. * @return true when successfully authenticated */ public boolean isAuthentificated() { return mAdaptee.isAuthenticated(); } /** * {@inheritDoc} */ @Override public void removeConnectionListener(IBeemConnectionListener listen) throws RemoteException { if (listen != null) mRemoteConnListeners.unregister(listen); } /** * PrivacyListManagerAdapter mutator. * @param privacyListManager the privacy list manager */ public void setPrivacyListManager(PrivacyListManagerAdapter privacyListManager) { this.mPrivacyListManager = privacyListManager; } /** * PrivacyListManagerAdapter accessor. * @return the mPrivacyList */ public PrivacyListManagerAdapter getPrivacyListManager() { return mPrivacyListManager; } /** * {@inheritDoc} */ @Override public String getErrorMessage() { return mErrorMsg; } /** * Initialize the features provided by beem. */ private void initFeatures() { ServiceDiscoveryManager.setIdentityName("Beem"); ServiceDiscoveryManager.setIdentityType("phone"); ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(mAdaptee); if (sdm == null) sdm = new ServiceDiscoveryManager(mAdaptee); sdm.addFeature("http://jabber.org/protocol/disco#info"); //nikita: must be uncommented when the feature will be enabled //sdm.addFeature("jabber:iq:privacy"); sdm.addFeature("http://jabber.org/protocol/caps"); sdm.addFeature("urn:xmpp:avatar:metadata"); sdm.addFeature("urn:xmpp:avatar:metadata+notify"); sdm.addFeature("urn:xmpp:avatar:data"); sdm.addFeature("http://jabber.org/protocol/nick"); sdm.addFeature("http://jabber.org/protocol/nick+notify"); sdm.addFeature(PingExtension.NAMESPACE); mChatStateManager = ChatStateManager.getInstance(mAdaptee); EntityCapsManager em = sdm.getEntityCapsManager(); em.setNode("http://www.beem-project.com"); } /** * Discover the features provided by the server. */ private void discoverServerFeatures() { try { // jid et server ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(mAdaptee); DiscoverInfo info = sdm.discoverInfo(mAdaptee.getServiceName()); Iterator<DiscoverInfo.Identity> it = info.getIdentities(); while (it.hasNext()) { DiscoverInfo.Identity identity = it.next(); if ("pubsub".equals(identity.getCategory()) && "pep".equals(identity.getType())) { initPEP(); } } } catch (XMPPException e) { Log.w(TAG, "Unable to discover server features", e); } } /** * Initialize PEP. */ private void initPEP() { // Enable pep sending Log.d(TAG, "Pep enabled"); // API 8 // mService.getExternalCacheDir() mPepManager = new PepSubManager(mAdaptee, StringUtils.parseBareAddress(mAdaptee.getUser())); AvatarCache avatarCache = new BeemAvatarCache(mService); mAvatarManager = new BeemAvatarManager(mService, mAdaptee, mPepManager, avatarCache, true); mAvatarManager.addAvatarListener(mUserInfoManager); mApplication.setPepEnabled(true); } /** * Reset the application state. */ private void resetApplication() { mApplication.setConnected(false); mApplication.setPepEnabled(false); } /** * Listener for XMPP connection events. It will calls the remote listeners for connection events. */ private class ConnexionListenerAdapter implements ConnectionListener { /** * Defaut constructor. */ public ConnexionListenerAdapter() { } /** * {@inheritDoc} */ @Override public void connectionClosed() { Log.d(TAG, "closing connection"); mRoster = null; Intent intent = new Intent(BeemBroadcastReceiver.BEEM_CONNECTION_CLOSED); intent.putExtra("message", mService.getString(R.string.BeemBroadcastReceiverDisconnect)); intent.putExtra("normally", true); mService.sendBroadcast(intent); mService.stopSelf(); resetApplication(); } /** * {@inheritDoc} */ @Override public void connectionClosedOnError(Exception exception) { Log.d(TAG, "connectionClosedOnError"); mRoster = null; Intent intent = new Intent(BeemBroadcastReceiver.BEEM_CONNECTION_CLOSED); intent.putExtra("message", exception.getMessage()); mService.sendBroadcast(intent); mService.stopSelf(); resetApplication(); } /** * Connection failed callback. * @param errorMsg smack failure message */ public void connectionFailed(String errorMsg) { Log.d(TAG, "Connection Failed"); final int n = mRemoteConnListeners.beginBroadcast(); for (int i = 0; i < n; i++) { IBeemConnectionListener listener = mRemoteConnListeners.getBroadcastItem(i); try { if (listener != null) listener.connectionFailed(errorMsg); } catch (RemoteException e) { // The RemoteCallbackList will take care of removing the // dead listeners. Log.w(TAG, "Error while triggering remote connection listeners", e); } } mRemoteConnListeners.finishBroadcast(); mService.stopSelf(); resetApplication(); } /** * {@inheritDoc} */ @Override public void reconnectingIn(int arg0) { Log.d(TAG, "reconnectingIn"); final int n = mRemoteConnListeners.beginBroadcast(); for (int i = 0; i < n; i++) { IBeemConnectionListener listener = mRemoteConnListeners.getBroadcastItem(i); try { if (listener != null) listener.reconnectingIn(arg0); } catch (RemoteException e) { // The RemoteCallbackList will take care of removing the // dead listeners. Log.w(TAG, "Error while triggering remote connection listeners", e); } } mRemoteConnListeners.finishBroadcast(); } /** * {@inheritDoc} */ @Override public void reconnectionFailed(Exception arg0) { Log.d(TAG, "reconnectionFailed"); final int r = mRemoteConnListeners.beginBroadcast(); for (int i = 0; i < r; i++) { IBeemConnectionListener listener = mRemoteConnListeners.getBroadcastItem(i); try { if (listener != null) listener.reconnectionFailed(); } catch (RemoteException e) { // The RemoteCallbackList will take care of removing the // dead listeners. Log.w(TAG, "Error while triggering remote connection listeners", e); } } mRemoteConnListeners.finishBroadcast(); } /** * {@inheritDoc} */ @Override public void reconnectionSuccessful() { Log.d(TAG, "reconnectionSuccessful"); mApplication.setConnected(true); PacketFilter filter = new PacketFilter() { @Override public boolean accept(Packet packet) { if (packet instanceof Presence) { Presence pres = (Presence) packet; if (pres.getType() == Presence.Type.subscribe) return true; } return false; } }; mAdaptee.addPacketListener(mSubscribePacketListener, filter); final int n = mRemoteConnListeners.beginBroadcast(); for (int i = 0; i < n; i++) { IBeemConnectionListener listener = mRemoteConnListeners.getBroadcastItem(i); try { if (listener != null) listener.reconnectionSuccessful(); } catch (RemoteException e) { // The RemoteCallbackList will take care of removing the // dead listeners. Log.w(TAG, "Error while triggering remote connection listeners", e); } } mRemoteConnListeners.finishBroadcast(); } } /** * This PacketListener will set a notification when you got a subscribtion request. * @author Da Risk <da_risk@elyzion.net> */ private class SubscribePacketListener implements PacketListener { /** * Constructor. */ public SubscribePacketListener() { } @Override public void processPacket(Packet packet) { String from = packet.getFrom(); NotificationCompat.Builder notif = new NotificationCompat.Builder(mService); String title = mService.getString(R.string.AcceptContactRequest, from); String text = mService.getString(R.string.AcceptContactRequestFrom, from); notif.setTicker(title).setContentTitle(title); notif.setContentText(text); notif.setSmallIcon(R.drawable.beem_status_icon_gray); notif.setAutoCancel(true).setWhen(System.currentTimeMillis()); Intent intent = new Intent(mService, Subscription.class); intent.setData(Contact.makeXmppUri(from)); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); PendingIntent notifIntent = PendingIntent.getActivity(mService, 0, intent, PendingIntent.FLAG_ONE_SHOT); notif.setContentIntent(notifIntent); int id = packet.hashCode(); mService.sendNotification(id, notif.getNotification()); } } /** * The UserInfoManager listen to XMPP events and update the user information accoldingly. */ private class UserInfoManager implements AvatarListener { /** * Constructor. */ public UserInfoManager() { } @Override public void onAvatarChange(String from, String avatarId, List<AvatarMetadataExtension.Info> avatarInfos) { String jid = StringUtils.parseBareAddress(mUserInfo.getJid()); String mfrom = StringUtils.parseBareAddress(from); if (jid.equalsIgnoreCase(mfrom)) { mUserInfo.setAvatarId(avatarId); } } } /** * Listener for Ping request. It will respond with a Pong. */ private class PingListener implements PacketListener { /** * Constructor. */ public PingListener() { } @Override public void processPacket(Packet packet) { if (!(packet instanceof PingExtension)) return; PingExtension p = (PingExtension) packet; if (p.getType() == IQ.Type.GET) { PingExtension pong = new PingExtension(); pong.setType(IQ.Type.RESULT); pong.setTo(p.getFrom()); pong.setPacketID(p.getPacketID()); mAdaptee.sendPacket(pong); } } } }