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path: root/src/playstore/java/de/pixart/messenger/services/PushManagementService.java
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package de.pixart.messenger.services;

import android.provider.Settings;
import android.util.Log;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GoogleApiAvailability;
import com.google.android.gms.gcm.GoogleCloudMessaging;
import com.google.android.gms.iid.InstanceID;

import de.pixart.messenger.Config;
import de.pixart.messenger.R;
import de.pixart.messenger.entities.Account;
import de.pixart.messenger.xml.Element;
import de.pixart.messenger.xmpp.OnIqPacketReceived;
import de.pixart.messenger.xmpp.XmppConnection;
import de.pixart.messenger.xmpp.forms.Data;
import de.pixart.messenger.xmpp.jid.InvalidJidException;
import de.pixart.messenger.xmpp.jid.Jid;
import de.pixart.messenger.xmpp.stanzas.IqPacket;

public class PushManagementService {

    private static final String APP_SERVER = "push.siacs.eu";

    protected final XmppConnectionService mXmppConnectionService;

    public PushManagementService(XmppConnectionService service) {
        this.mXmppConnectionService = service;
    }

    public void registerPushTokenOnServer(final Account account) {
        Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": has push support");
        retrieveGcmInstanceToken(new OnGcmInstanceTokenRetrieved() {
            @Override
            public void onGcmInstanceTokenRetrieved(String token) {
                try {
                    final String deviceId = Settings.Secure.getString(mXmppConnectionService.getContentResolver(), Settings.Secure.ANDROID_ID);
                    IqPacket packet = mXmppConnectionService.getIqGenerator().pushTokenToAppServer(Jid.fromString(APP_SERVER), token, deviceId);
                    mXmppConnectionService.sendIqPacket(account, packet, new OnIqPacketReceived() {
                        @Override
                        public void onIqPacketReceived(Account account, IqPacket packet) {
                            Element command = packet.findChild("command", "http://jabber.org/protocol/commands");
                            if (packet.getType() == IqPacket.TYPE.RESULT && command != null) {
                                Element x = command.findChild("x", "jabber:x:data");
                                if (x != null) {
                                    Data data = Data.parse(x);
                                    try {
                                        String node = data.getValue("node");
                                        String secret = data.getValue("secret");
                                        Jid jid = Jid.fromString(data.getValue("jid"));
                                        if (node != null && secret != null) {
                                            enablePushOnServer(account, jid, node, secret);
                                        }
                                    } catch (InvalidJidException e) {
                                        e.printStackTrace();
                                    }
                                }
                            } else {
                                Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": invalid response from app server");
                            }
                        }
                    });
                } catch (InvalidJidException ignored) {

                }
            }
        });
    }

    private void enablePushOnServer(final Account account, final Jid jid, final String node, final String secret) {
        IqPacket enable = mXmppConnectionService.getIqGenerator().enablePush(jid, node, secret);
        mXmppConnectionService.sendIqPacket(account, enable, new OnIqPacketReceived() {
            @Override
            public void onIqPacketReceived(Account account, IqPacket packet) {
                if (packet.getType() == IqPacket.TYPE.RESULT) {
                    Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": successfully enabled push on server");
                } else if (packet.getType() == IqPacket.TYPE.ERROR) {
                    Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": enabling push on server failed");
                }
            }
        });
    }

    private void retrieveGcmInstanceToken(final OnGcmInstanceTokenRetrieved instanceTokenRetrieved) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                InstanceID instanceID = InstanceID.getInstance(mXmppConnectionService);
                try {
                    String token = instanceID.getToken(mXmppConnectionService.getString(R.string.gcm_defaultSenderId), GoogleCloudMessaging.INSTANCE_ID_SCOPE, null);
                    instanceTokenRetrieved.onGcmInstanceTokenRetrieved(token);
                } catch (Exception e) {
                    Log.d(Config.LOGTAG, "unable to get push token");
                }
            }
        }).start();

    }


    public boolean available(Account account) {
        final XmppConnection connection = account.getXmppConnection();
        return connection != null && connection.getFeatures().push() && playServicesAvailable();
    }

    private boolean playServicesAvailable() {
        return GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(mXmppConnectionService) == ConnectionResult.SUCCESS;
    }

    public boolean isStub() {
        return false;
    }

    interface OnGcmInstanceTokenRetrieved {
        void onGcmInstanceTokenRetrieved(String token);
    }
}