Implement xmpp-api v1

src/main/AndroidManifest.xml

@@ -227,6 +227,21 @@
             </intent-filter>
         </receiver>
 
+        <!-- Xmpp Remote API, this service has explicitly no permission requirements
+        because we are using our own package based allow/disallow system
+
+                android:process=":remote_api"
+        -->
+        <service
+                android:name=".remote.XmppPluginService"
+                android:enabled="true"
+                android:exported="true"
+                tools:ignore="ExportedService">
+            <intent-filter>
+                <action android:name="org.openintents.xmpp.IXmppService" />
+            </intent-filter>
+        </service>
+
     </application>
 
 </manifest>

src/main/java/eu/siacs/conversations/parser/MessageParser.java

@@ -578,7 +578,7 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
 			}
 
 			// todo: hook here but prepend? put this off for later
-			SMSReceiver.newMessage(message);
+			mXmppConnectionService.newMessage(message);
 			if (query != null && query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
 				conversation.prepend(message);
 			} else {

src/main/java/eu/siacs/conversations/remote/XmppPluginService.java

@@ -0,0 +1,364 @@
+package eu.siacs.conversations.remote;
+
+import android.app.Service;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.IBinder;
+import android.os.RemoteCallbackList;
+import android.os.RemoteException;
+import android.util.Log;
+import eu.siacs.conversations.Config;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.services.XmppConnectionService;
+import eu.siacs.conversations.xml.Element;
+import eu.siacs.conversations.xml.XmlReader;
+import eu.siacs.conversations.xmpp.OnIqPacketReceived;
+import eu.siacs.conversations.xmpp.XmppConnection;
+import eu.siacs.conversations.xmpp.stanzas.*;
+import org.openintents.xmpp.IXmppPluginCallback;
+import org.openintents.xmpp.XmppError;
+import org.openintents.xmpp.util.XmppPluginCallbackApi;
+
+import java.io.*;
+import java.util.*;
+
+import static org.openintents.xmpp.util.XmppPluginCallbackApi.*;
+import static org.openintents.xmpp.util.XmppServiceApi.*;
+import static org.openintents.xmpp.util.XmppUtils.*;
+
+public class XmppPluginService extends Service {
+
+    private static final int[] SUPPORTED_VERSIONS = new int[]{1};
+
+    private XmppConnectionService xmppConnectionService = null;
+    private boolean xmppConnectionServiceBound = false;
+
+    private RemoteCallbackList<XmppPluginCallbackApi> pluginCallbacks = new RemoteCallbackList<>();
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+
+        if (!xmppConnectionServiceBound) {
+            connectToBackend();
+        }
+    }
+
+    protected ServiceConnection mConnection = new ServiceConnection() {
+
+        @Override
+        public void onServiceConnected(ComponentName className, IBinder service) {
+            final XmppConnectionService.XmppConnectionBinder binder = (XmppConnectionService.XmppConnectionBinder) service;
+            xmppConnectionService = binder.getService();
+            xmppConnectionService.setXmppPluginService(XmppPluginService.this);
+        }
+
+        @Override
+        public void onServiceDisconnected(ComponentName arg0) {
+            xmppConnectionService = null;
+            xmppConnectionServiceBound = false;
+        }
+    };
+
+    public void connectToBackend() {
+        final Intent intent = new Intent(this, XmppConnectionService.class);
+        intent.setAction("ui");
+        startService(intent);
+        bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
+    }
+
+
+    private final org.openintents.xmpp.AbstractXmppService mBinder = new org.openintents.xmpp.AbstractXmppService() {
+
+        @Override
+        public Intent execute(final Intent data, final InputStream input, final OutputStream output) {
+            try {
+                return executeInternal(data, input, output);
+            } catch (Exception e) {
+                Log.e(Config.LOGTAG, "error in execute", e);
+                return getExceptionError(e);
+            }
+        }
+
+        @Override
+        public Intent callback(final Intent data, final IXmppPluginCallback iXmppPluginCallback) {
+            try {
+                return callbackInternal(data, iXmppPluginCallback);
+            } catch (Exception e) {
+                Log.e(Config.LOGTAG, "error in callback", e);
+                return getExceptionError(e);
+            }
+        }
+    };
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return mBinder;
+    }
+
+    protected Intent executeInternal(final Intent data, final InputStream inputStream, final OutputStream outputStream) throws Exception {
+
+        // We need to be able to load our own parcelables
+        data.setExtrasClassLoader(getClassLoader());
+
+        final Intent errorResult = checkRequirements(data);
+        if (errorResult != null) {
+            return errorResult;
+        }
+
+        final String action = data.getAction();
+        switch (action) {
+            case ACTION_CHECK_PERMISSION: {
+                return null;// todo: checkPermissionImpl(data);
+            }
+            case ACTION_GET_ACCOUNT_JID: {
+                return getAccountJid(data);
+            }
+            case ACTION_SEND_RAW_XML: {
+                return sendRawXml(data, null);
+            }
+            default: {
+                return getError(XmppError.GENERIC_ERROR, "invalid action!");
+            }
+        }
+    }
+
+    protected Intent callbackInternal(final Intent data, final IXmppPluginCallback iXmppPluginCallback) throws Exception {
+
+        // We need to be able to load our own parcelables
+        data.setExtrasClassLoader(getClassLoader());
+
+        final Intent errorResult = checkRequirements(data);
+        if (errorResult != null) {
+            return errorResult;
+        }
+
+        final String action = data.getAction();
+        switch (action) {
+            case ACTION_REGISTER_PLUGIN_CALLBACK: {
+                return registerPluginCallback(data, iXmppPluginCallback);
+            }
+            case ACTION_UNREGISTER_PLUGIN_CALLBACK: {
+                return unRegisterPluginCallback(data, iXmppPluginCallback);
+            }
+            case ACTION_SEND_RAW_XML: {
+                return sendRawXml(data, iXmppPluginCallback);
+            }
+            default: {
+                return getError(XmppError.GENERIC_ERROR, "invalid action!");
+            }
+        }
+    }
+
+    private Intent registerPluginCallback(final Intent data, final IXmppPluginCallback iXmppPluginCallback) {
+        if(pluginCallbacks.register(new XmppPluginCallbackApi(getApplicationContext(), iXmppPluginCallback,
+                data.getStringExtra(EXTRA_ACCOUNT_JID), data.getStringExtra(EXTRA_JID_LOCAL_PART), data.getStringExtra(EXTRA_JID_DOMAIN))))
+            return getSuccess();
+        return getError(XmppError.GENERIC_ERROR, "callback register failed");
+    }
+
+    private Intent unRegisterPluginCallback(final Intent data, final IXmppPluginCallback iXmppPluginCallback) {
+        if(pluginCallbacks.unregister(new XmppPluginCallbackApi(getApplicationContext(), iXmppPluginCallback, "fake", null, null)))
+            return getSuccess();
+        /*
+        for(Iterator<XmppPluginCallbackApi> i = pluginCallbacks.iterator(); i.hasNext();) {
+            final XmppPluginCallbackApi pluginCallback = i.next();
+            if(pluginCallback.getXmppPluginCallback().getDelegate().equals(iXmppPluginCallback)) {
+                i.remove();
+                return getSuccess();
+            }
+        }*/
+        return getError(XmppError.GENERIC_ERROR, "callback unregister failed");
+    }
+
+    /**
+     * Check requirements:
+     * - params != null
+     * - has supported API version
+     * - is allowed to call the service (access has been granted)
+     *
+     * @return null if everything is okay, or a Bundle with an createErrorPendingIntent/PendingIntent
+     */
+    private Intent checkRequirements(Intent data) {
+        // params Bundle is required!
+        if (data == null) {
+            return getError(XmppError.GENERIC_ERROR, "params Bundle required!");
+        }
+
+        if(data.getAction().equals(ACTION_GET_SUPPORTED_VERSIONS)) {
+            // for this action, we want to skip both version AND permission checks
+            return getSuccess().putExtra(EXTRA_SUPPORTED_VERSIONS, SUPPORTED_VERSIONS);
+        }
+
+        // version code is required and needs to correspond to version code of service!
+        // History of versions in Xmpp-api's CHANGELOG.md
+        final int version = data.getIntExtra(EXTRA_API_VERSION, -1);
+        if (version == -1 || Arrays.binarySearch(SUPPORTED_VERSIONS, version) < 0) {
+            return getError
+                    (XmppError.INCOMPATIBLE_API_VERSIONS, "Incompatible API versions!\n"
+                            + "used API version: " + version + "\n"
+                            + "supported API versions: " + Arrays.toString(SUPPORTED_VERSIONS))
+                    .putExtra(EXTRA_SUPPORTED_VERSIONS, SUPPORTED_VERSIONS);
+        }
+
+        // check if caller is allowed to access Conversations
+        // todo:
+        /*
+        Intent result = mApiPermissionHelper.isAllowedOrReturnIntent(data);
+        if (result != null) {
+            return result;
+        }
+        */
+
+        return null;
+    }
+
+    private Intent getAccountJid(Intent data) {
+        // if data already contains EXTRA_ACCOUNT_JID, it has been executed again
+        // after user interaction. Then, we just need to return the JID again!
+        if (data.hasExtra(EXTRA_ACCOUNT_JID)) {
+            final String accountJid = data.getStringExtra(EXTRA_ACCOUNT_JID);
+            return getSuccess().putExtra(EXTRA_ACCOUNT_JID, accountJid);
+        } else {
+            /*
+            String currentPkg = mApiPermissionHelper.getCurrentCallingPackage();
+            String preferredUserId = data.getStringExtra(EXTRA_USER_ID);
+
+            PendingIntent pi = mApiPendingIntentFactory.createSelectSignKeyIdPendingIntent(data, currentPkg, preferredUserId);
+
+            // return PendingIntent to be executed by client
+            Intent result = new Intent();
+            result.putExtra(RESULT_CODE, RESULT_CODE_USER_INTERACTION_REQUIRED);
+            result.putExtra(RESULT_INTENT, pi);
+            */
+
+            // todo: implement chooser above, until then, first account will do
+            final String accountJid = xmppConnectionService.getAccounts().get(0).getJid().toBareJid().toString();
+            return getSuccess().putExtra(EXTRA_ACCOUNT_JID, accountJid);
+        }
+    }
+
+    private Intent sendRawXml(Intent data, final IXmppPluginCallback iXmppPluginCallback) throws Exception {
+        final Account account = findAccount(data.getStringExtra(EXTRA_ACCOUNT_JID));
+        final XmlReader reader = new XmlReader(new StringReader(data.getStringExtra(EXTRA_RAW_XML)));
+        final Element parsedRawXml = reader.nextWholeElement(); // todo: should do this in loop or????
+        Log.d(Config.LOGTAG, "rawXml: " + parsedRawXml.toString());
+        switch(parsedRawXml.getName()) {
+            case "message": {
+                final MessagePacket packet = create(parsedRawXml, new MessagePacket());
+                packet.setFrom(account.getJid());
+                Log.d(Config.LOGTAG, "msgXml: " + packet.toString());
+                xmppConnectionService.sendMessagePacket(account, packet);
+                return getSuccess();
+            }
+            case "iq": {
+                final IqPacket packet = create(parsedRawXml, new IqPacket());
+                packet.setFrom(account.getJid());
+
+                OnIqPacketReceived callback = null;
+                if(iXmppPluginCallback != null) {
+                    // plugin wants notified of response
+                    callback = new OnIqPacketReceived() {
+                        @Override
+                        public void onIqPacketReceived(final Account account, final IqPacket packet) {
+                            final Intent result = new Intent();
+                            result.setAction(ACTION_IQ_RESPONSE);
+                            final String accountJid = account.getJid().toBareJid().toString();
+                            result.putExtra(EXTRA_ACCOUNT_JID, accountJid);
+                            result.putExtra(EXTRA_RAW_XML, packet.toString());
+                            try {
+                                iXmppPluginCallback.execute(result, null, -1);
+                            } catch (RemoteException e) {
+                                Log.e(Config.LOGTAG, "error returning iq to callback", e);
+                            }
+                        }
+                    };
+                }
+
+                xmppConnectionService.sendIqPacket(account, packet, callback);
+                return getSuccess();
+            }
+            case "presence": {
+                final PresencePacket packet = create(parsedRawXml, new PresencePacket());
+                packet.setFrom(account.getJid());
+                xmppConnectionService.sendPresencePacket(account, packet);
+                return getSuccess();
+            }
+            default: {
+                // must be some type of nonza
+                XmppConnection connection = account.getXmppConnection();
+                if (connection != null) {
+                    connection.sendPacket(create(parsedRawXml, new GenericStanza(parsedRawXml.getName())));
+                }
+                return getSuccess();
+            }
+        }
+    }
+
+    private Account findAccount(final String accountJid) {
+        if(accountJid != null)
+            for(Account account : xmppConnectionService.getAccounts())
+                if(accountJid.equals(account.getJid().toBareJid().toString()))
+                    return account;
+        return null;
+    }
+
+    private static <T extends Element> T create(final Element element, final T packet) {
+        packet.setAttributes(element.getAttributes());
+        packet.setContent(element.getContent());
+        packet.setChildren(element.getChildren());
+        return packet;
+    }
+
+    private final IXmppCallback newMessageReturn = new IXmppCallback() {
+        @Override
+        public void onReturn(final Intent result) {
+            if(result.getIntExtra(RESULT_CODE, RESULT_CODE_ERROR) == RESULT_CODE_ERROR) {
+                // We need to be able to load our own parcelables
+                result.setExtrasClassLoader(getClassLoader());
+                Log.e(Config.LOGTAG, "error calling callback: " + result.getParcelableExtra(RESULT_ERROR));
+                // todo: should remove from pluginCallbacks on error or?
+            }
+        }
+    };
+
+    public void newMessage(final Message message) {
+        final int N = pluginCallbacks.beginBroadcast();
+        try {
+            if (N == 0)
+                return;
+            final String accountJid = message.getConversation().getAccount().getJid().toBareJid().toString();
+            final String localPart = message.getConversation().getJid().getLocalpart();
+            final String domain = message.getConversation().getJid().getDomainpart();
+            Intent result = null; // lazy load this
+            //for(final XmppPluginCallbackApi api : pluginCallbacks) {
+            for (int i = 0; i < N; ++i) {
+                final XmppPluginCallbackApi api = pluginCallbacks.getBroadcastItem(i);
+                if (api.matches(accountJid, localPart, domain)) {
+                    if (result == null) {
+                        result = new Intent();
+                        result.setAction(ACTION_NEW_MESSAGE);
+                        result.putExtra(EXTRA_ACCOUNT_JID, accountJid);
+                        result.putExtra(EXTRA_MESSAGE_STATUS, message.getStatus());
+                        final String partnerJid = message.getConversation().getJid().toBareJid().toString();
+                        // need to set from/to based on status
+                        if (message.getStatus() == 0) {
+                            result.putExtra(EXTRA_MESSAGE_TO, accountJid);
+                            result.putExtra(EXTRA_MESSAGE_FROM, partnerJid);
+                        } else {
+                            result.putExtra(EXTRA_MESSAGE_FROM, accountJid);
+                            result.putExtra(EXTRA_MESSAGE_TO, partnerJid);
+                        }
+                        result.putExtra(EXTRA_MESSAGE_BODY, message.getBody());
+                    }
+                    api.executeApiAsync(result, null, null, newMessageReturn);
+                }
+            }
+        } finally {
+            pluginCallbacks.finishBroadcast();
+        }
+    }
+}

src/main/java/eu/siacs/conversations/services/SMSReceiver.java

@@ -68,6 +68,8 @@ public class SMSReceiver extends BroadcastReceiver {
                 forwardedMsg.setFrom(fromJid);
                 forwardedMsg.setBody(message);
 
+                Log.d(Config.LOGTAG, "smsXml: " + packet.toString());
+
                 xmppConnectionService.sendMessagePacket(getAccount(), packet);
 
                 //---send a broadcast intent to update the SMS received in the activity---

src/main/java/eu/siacs/conversations/services/XmppConnectionService.java

@@ -5,10 +5,7 @@ import android.annotation.TargetApi;
 import android.app.AlarmManager;
 import android.app.PendingIntent;
 import android.app.Service;
-import android.content.Context;
+import android.content.*;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.content.SharedPreferences;
 import android.database.ContentObserver;
 import android.graphics.Bitmap;
 import android.media.AudioManager;
@@ -34,6 +31,7 @@ import android.util.Log;
 import android.util.LruCache;
 import android.util.Pair;
 
+import eu.siacs.conversations.remote.XmppPluginService;
 import net.java.otr4j.OtrException;
 import net.java.otr4j.session.Session;
 import net.java.otr4j.session.SessionID;
@@ -139,6 +137,7 @@ import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 import me.leolin.shortcutbadger.ShortcutBadger;
+import org.openintents.xmpp.IXmppPluginCallback;
 
 public class XmppConnectionService extends Service {
 
@@ -166,6 +165,7 @@ public class XmppConnectionService extends Service {
 	private final HashSet<Jid> mLowPingTimeoutMode = new HashSet<>();
 
 	private long mLastActivity = 0;
+	private XmppPluginService xmppPluginService;
 
 	public XmppConnectionService() {
 		SMSReceiver.xmppConnectionService = this;
@@ -1283,7 +1283,7 @@ public class XmppConnectionService extends Service {
 		} else {
 			if (addToConversation) {
 				conversation.add(message);
-				SMSReceiver.newMessage(message);
+				this.newMessage(message);
 			}
 			if (saveInDb) {
 				databaseBackend.createMessage(message);
@@ -3932,6 +3932,20 @@ public class XmppConnectionService extends Service {
 		return mShortcutService;
 	}
 
+	public void setXmppPluginService(final XmppPluginService xmppPluginService) {
+		this.xmppPluginService = xmppPluginService;
+	}
+
+	public void newMessage(final Message message) {
+		SMSReceiver.newMessage(message);
+		if(xmppPluginService != null)
+			try {
+				xmppPluginService.newMessage(message);
+			} catch(Exception e) {
+				Log.e(Config.LOGTAG, "error sending message to xmppPluginService", e);
+			}
+	}
+
 	public interface OnMamPreferencesFetched {
 		void onPreferencesFetched(Element prefs);
 

src/main/java/eu/siacs/conversations/xml/XmlReader.java

@@ -8,9 +8,7 @@ import android.util.Xml;
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 
-import java.io.IOException;
+import java.io.*;
-import java.io.InputStream;
-import java.io.InputStreamReader;
 
 import eu.siacs.conversations.Config;
 
@@ -18,6 +16,7 @@ public class XmlReader {
 	private XmlPullParser parser;
 	private PowerManager.WakeLock wakeLock;
 	private InputStream is;
+	private boolean inputSet = false;
 
 	public XmlReader(WakeLock wakeLock) {
 		this.parser = Xml.newPullParser();
@@ -29,11 +28,24 @@ public class XmlReader {
 		this.wakeLock = wakeLock;
 	}
 
+	public XmlReader(final Reader input) throws IOException {
+		this((WakeLock) null);
+		if(input == null)
+			throw new IOException();
+		this.inputSet = true;
+		try {
+			parser.setInput(input);
+		} catch (XmlPullParserException e) {
+			throw new IOException("error resetting parser");
+		}
+	}
+
 	public void setInputStream(InputStream inputStream) throws IOException {
 		if (inputStream == null) {
 			throw new IOException();
 		}
 		this.is = inputStream;
+		this.inputSet = true;
 		try {
 			parser.setInput(new InputStreamReader(this.is));
 		} catch (XmlPullParserException e) {
@@ -53,7 +65,7 @@ public class XmlReader {
 	}
 
 	public Tag readTag() throws XmlPullParserException, IOException {
-		if (wakeLock.isHeld()) {
+		if (wakeLock != null && wakeLock.isHeld()) {
 			try {
 				wakeLock.release();
 			} catch (RuntimeException re) {
@@ -61,8 +73,10 @@ public class XmlReader {
 			}
 		}
 		try {
-			while (this.is != null && parser.next() != XmlPullParser.END_DOCUMENT) {
+			while (inputSet && parser.next() != XmlPullParser.END_DOCUMENT) {
-				wakeLock.acquire();
+				if(wakeLock != null) {
+					wakeLock.acquire();
+				}
 				if (parser.getEventType() == XmlPullParser.START_TAG) {
 					Tag tag = Tag.start(parser.getName());
 					final String xmlns = parser.getNamespace();
@@ -90,7 +104,7 @@ public class XmlReader {
 		} catch (Throwable throwable) {
 			throw new IOException("xml parser mishandled "+throwable.getClass().getSimpleName()+"("+throwable.getMessage()+")", throwable);
 		} finally {
-			if (wakeLock.isHeld()) {
+			if (wakeLock != null && wakeLock.isHeld()) {
 				try {
 					wakeLock.release();
 				} catch (RuntimeException re) {
@@ -128,4 +142,29 @@ public class XmlReader {
 		}
 		return element;
 	}
+
+	public Element nextWholeElement() throws XmlPullParserException, IOException {
+		final Tag currentTag = this.readTag();
+		if(currentTag == null)
+			return null;
+		final Element element = new Element(currentTag.name);
+		int tagCount = 1;
+		element.setAttributes(currentTag.getAttributes());
+		Tag nextTag = this.readTag();
+		if (nextTag == null) {
+			throw new IOException("interrupted mid tag");
+		}
+		while (!nextTag.isEnd(element.getName()) && --tagCount < 1) {
+			if (nextTag.isStart(element.getName()))
+				++tagCount;
+			if (!nextTag.isNo()) {
+				element.addChild(this.readElement(nextTag));
+			}
+			nextTag = this.readTag();
+			if (nextTag == null) {
+				throw new IOException("interrupted mid tag");
+			}
+		}
+		return element;
+	}
 }

src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java

@@ -1364,7 +1364,7 @@ public class XmppConnection implements Runnable {
 		this.sendPacket(packet);
 	}
 
-	private synchronized void sendPacket(final AbstractStanza packet) {
+	public synchronized void sendPacket(final AbstractStanza packet) {
 		if (stanzasSent == Integer.MAX_VALUE) {
 			resetStreamId();
 			disconnect(true);

src/main/java/eu/siacs/conversations/xmpp/stanzas/GenericStanza.java

@@ -0,0 +1,7 @@
+package eu.siacs.conversations.xmpp.stanzas;
+
+public class GenericStanza extends AbstractStanza {
+    public GenericStanza(final String name) {
+        super(name);
+    }
+}