Convert to gradle build system

1 files changed, 714 insertions, 0 deletions

diff --git a/app/src/main/java/org/connectbot/service/TerminalManager.java b/app/src/main/java/org/connectbot/service/TerminalManager.java
new file mode 100644
index 0000000..369d79a
--- /dev/null
+++ b/app/src/main/java/org/connectbot/service/TerminalManager.java
@@ -0,0 +1,714 @@
+/*
+ * ConnectBot: simple, powerful, open-source SSH client for Android
+ * Copyright 2007 Kenny Root, Jeffrey Sharkey
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.connectbot.service;
+
+import java.io.IOException;
+import java.lang.ref.WeakReference;
+import java.security.KeyPair;
+import java.security.PrivateKey;
+import java.security.PublicKey;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Timer;
+import java.util.TimerTask;
+
+import org.connectbot.R;
+import org.connectbot.bean.HostBean;
+import org.connectbot.bean.PubkeyBean;
+import org.connectbot.transport.TransportFactory;
+import org.connectbot.util.HostDatabase;
+import org.connectbot.util.PreferenceConstants;
+import org.connectbot.util.PubkeyDatabase;
+import org.connectbot.util.PubkeyUtils;
+
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.content.res.AssetFileDescriptor;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.media.AudioManager;
+import android.media.MediaPlayer;
+import android.media.MediaPlayer.OnCompletionListener;
+import android.net.Uri;
+import android.os.Binder;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Message;
+import android.os.Vibrator;
+import android.preference.PreferenceManager;
+import android.util.Log;
+
+/**
+ * Manager for SSH connections that runs as a service. This service holds a list
+ * of currently connected SSH bridges that are ready for connection up to a GUI
+ * if needed.
+ *
+ * @author jsharkey
+ */
+public class TerminalManager extends Service implements BridgeDisconnectedListener, OnSharedPreferenceChangeListener {
+	public final static String TAG = "ConnectBot.TerminalManager";
+
+	public List<TerminalBridge> bridges = new LinkedList<TerminalBridge>();
+	public Map<HostBean, WeakReference<TerminalBridge>> mHostBridgeMap =
+		new HashMap<HostBean, WeakReference<TerminalBridge>>();
+	public Map<String, WeakReference<TerminalBridge>> mNicknameBridgeMap =
+		new HashMap<String, WeakReference<TerminalBridge>>();
+
+	public TerminalBridge defaultBridge = null;
+
+	public List<HostBean> disconnected = new LinkedList<HostBean>();
+
+	public Handler disconnectHandler = null;
+
+	public Map<String, KeyHolder> loadedKeypairs = new HashMap<String, KeyHolder>();
+
+	public Resources res;
+
+	public HostDatabase hostdb;
+	public PubkeyDatabase pubkeydb;
+
+	protected SharedPreferences prefs;
+
+	final private IBinder binder = new TerminalBinder();
+
+	private ConnectivityReceiver connectivityManager;
+
+	private MediaPlayer mediaPlayer;
+
+	private Timer pubkeyTimer;
+
+	private Timer idleTimer;
+	private final long IDLE_TIMEOUT = 300000; // 5 minutes
+
+	private Vibrator vibrator;
+	private volatile boolean wantKeyVibration;
+	public static final long VIBRATE_DURATION = 30;
+
+	private boolean wantBellVibration;
+
+	private boolean resizeAllowed = true;
+
+	private boolean savingKeys;
+
+	protected List<WeakReference<TerminalBridge>> mPendingReconnect
+			= new LinkedList<WeakReference<TerminalBridge>>();
+
+	public boolean hardKeyboardHidden;
+
+	@Override
+	public void onCreate() {
+		Log.i(TAG, "Starting service");
+
+		prefs = PreferenceManager.getDefaultSharedPreferences(this);
+		prefs.registerOnSharedPreferenceChangeListener(this);
+
+		res = getResources();
+
+		pubkeyTimer = new Timer("pubkeyTimer", true);
+
+		hostdb = new HostDatabase(this);
+		pubkeydb = new PubkeyDatabase(this);
+
+		// load all marked pubkeys into memory
+		updateSavingKeys();
+		List<PubkeyBean> pubkeys = pubkeydb.getAllStartPubkeys();
+
+		for (PubkeyBean pubkey : pubkeys) {
+			try {
+				PrivateKey privKey = PubkeyUtils.decodePrivate(pubkey.getPrivateKey(), pubkey.getType());
+				PublicKey pubKey = PubkeyUtils.decodePublic(pubkey.getPublicKey(), pubkey.getType());
+				KeyPair pair = new KeyPair(pubKey, privKey);
+
+				addKey(pubkey, pair);
+			} catch (Exception e) {
+				Log.d(TAG, String.format("Problem adding key '%s' to in-memory cache", pubkey.getNickname()), e);
+			}
+		}
+
+		vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
+		wantKeyVibration = prefs.getBoolean(PreferenceConstants.BUMPY_ARROWS, true);
+
+		wantBellVibration = prefs.getBoolean(PreferenceConstants.BELL_VIBRATE, true);
+		enableMediaPlayer();
+
+		hardKeyboardHidden = (res.getConfiguration().hardKeyboardHidden ==
+			Configuration.HARDKEYBOARDHIDDEN_YES);
+
+		final boolean lockingWifi = prefs.getBoolean(PreferenceConstants.WIFI_LOCK, true);
+
+		connectivityManager = new ConnectivityReceiver(this, lockingWifi);
+
+	}
+
+	private void updateSavingKeys() {
+		savingKeys = prefs.getBoolean(PreferenceConstants.MEMKEYS, true);
+	}
+
+	@Override
+	public void onDestroy() {
+		Log.i(TAG, "Destroying service");
+
+		disconnectAll(true);
+
+		if(hostdb != null) {
+			hostdb.close();
+			hostdb = null;
+		}
+
+		if(pubkeydb != null) {
+			pubkeydb.close();
+			pubkeydb = null;
+		}
+
+		synchronized (this) {
+			if (idleTimer != null)
+				idleTimer.cancel();
+			if (pubkeyTimer != null)
+				pubkeyTimer.cancel();
+		}
+
+		connectivityManager.cleanup();
+
+		ConnectionNotifier.getInstance().hideRunningNotification(this);
+
+		disableMediaPlayer();
+	}
+
+	/**
+	 * Disconnect all currently connected bridges.
+	 */
+	private void disconnectAll(final boolean immediate) {
+		TerminalBridge[] tmpBridges = null;
+
+		synchronized (bridges) {
+			if (bridges.size() > 0) {
+				tmpBridges = bridges.toArray(new TerminalBridge[bridges.size()]);
+			}
+		}
+
+		if (tmpBridges != null) {
+			// disconnect and dispose of any existing bridges
+			for (int i = 0; i < tmpBridges.length; i++)
+				tmpBridges[i].dispatchDisconnect(immediate);
+		}
+	}
+
+	/**
+	 * Open a new SSH session using the given parameters.
+	 */
+	private TerminalBridge openConnection(HostBean host) throws IllegalArgumentException, IOException {
+		// throw exception if terminal already open
+		if (getConnectedBridge(host) != null) {
+			throw new IllegalArgumentException("Connection already open for that nickname");
+		}
+
+		TerminalBridge bridge = new TerminalBridge(this, host);
+		bridge.setOnDisconnectedListener(this);
+		bridge.startConnection();
+
+		synchronized (bridges) {
+			bridges.add(bridge);
+			WeakReference<TerminalBridge> wr = new WeakReference<TerminalBridge>(bridge);
+			mHostBridgeMap.put(bridge.host, wr);
+			mNicknameBridgeMap.put(bridge.host.getNickname(), wr);
+		}
+
+		synchronized (disconnected) {
+			disconnected.remove(bridge.host);
+		}
+
+		if (bridge.isUsingNetwork()) {
+			connectivityManager.incRef();
+		}
+
+		if (prefs.getBoolean(PreferenceConstants.CONNECTION_PERSIST, true)) {
+			ConnectionNotifier.getInstance().showRunningNotification(this);
+		}
+
+		// also update database with new connected time
+		touchHost(host);
+
+		return bridge;
+	}
+
+	public String getEmulation() {
+		return prefs.getString(PreferenceConstants.EMULATION, "screen");
+	}
+
+	public int getScrollback() {
+		int scrollback = 140;
+		try {
+			scrollback = Integer.parseInt(prefs.getString(PreferenceConstants.SCROLLBACK, "140"));
+		} catch(Exception e) {
+		}
+		return scrollback;
+	}
+
+	/**
+	 * Open a new connection by reading parameters from the given URI. Follows
+	 * format specified by an individual transport.
+	 */
+	public TerminalBridge openConnection(Uri uri) throws Exception {
+		HostBean host = TransportFactory.findHost(hostdb, uri);
+
+		if (host == null)
+			host = TransportFactory.getTransport(uri.getScheme()).createHost(uri);
+
+		return openConnection(host);
+	}
+
+	/**
+	 * Update the last-connected value for the given nickname by passing through
+	 * to {@link HostDatabase}.
+	 */
+	private void touchHost(HostBean host) {
+		hostdb.touchHost(host);
+	}
+
+	/**
+	 * Find a connected {@link TerminalBridge} with the given HostBean.
+	 *
+	 * @param host the HostBean to search for
+	 * @return TerminalBridge that uses the HostBean
+	 */
+	public TerminalBridge getConnectedBridge(HostBean host) {
+		WeakReference<TerminalBridge> wr = mHostBridgeMap.get(host);
+		if (wr != null) {
+			return wr.get();
+		} else {
+			return null;
+		}
+	}
+
+	/**
+	 * Find a connected {@link TerminalBridge} using its nickname.
+	 *
+	 * @param nickname
+	 * @return TerminalBridge that matches nickname
+	 */
+	public TerminalBridge getConnectedBridge(final String nickname) {
+		if (nickname == null) {
+			return null;
+		}
+		WeakReference<TerminalBridge> wr = mNicknameBridgeMap.get(nickname);
+		if (wr != null) {
+			return wr.get();
+		} else {
+			return null;
+		}
+	}
+
+	/**
+	 * Called by child bridge when somehow it's been disconnected.
+	 */
+	public void onDisconnected(TerminalBridge bridge) {
+		boolean shouldHideRunningNotification = false;
+
+		synchronized (bridges) {
+			// remove this bridge from our list
+			bridges.remove(bridge);
+
+			mHostBridgeMap.remove(bridge.host);
+			mNicknameBridgeMap.remove(bridge.host.getNickname());
+
+			if (bridge.isUsingNetwork()) {
+				connectivityManager.decRef();
+			}
+
+			if (bridges.size() == 0 &&
+					mPendingReconnect.size() == 0) {
+				shouldHideRunningNotification = true;
+			}
+		}
+
+		synchronized (disconnected) {
+			disconnected.add(bridge.host);
+		}
+
+		if (shouldHideRunningNotification) {
+			ConnectionNotifier.getInstance().hideRunningNotification(this);
+		}
+
+		// pass notification back up to gui
+		if (disconnectHandler != null)
+			Message.obtain(disconnectHandler, -1, bridge).sendToTarget();
+	}
+
+	public boolean isKeyLoaded(String nickname) {
+		return loadedKeypairs.containsKey(nickname);
+	}
+
+	public void addKey(PubkeyBean pubkey, KeyPair pair) {
+		addKey(pubkey, pair, false);
+	}
+
+	public void addKey(PubkeyBean pubkey, KeyPair pair, boolean force) {
+		if (!savingKeys && !force)
+			return;
+
+		removeKey(pubkey.getNickname());
+
+		byte[] sshPubKey = PubkeyUtils.extractOpenSSHPublic(pair);
+
+		KeyHolder keyHolder = new KeyHolder();
+		keyHolder.bean = pubkey;
+		keyHolder.pair = pair;
+		keyHolder.openSSHPubkey = sshPubKey;
+
+		loadedKeypairs.put(pubkey.getNickname(), keyHolder);
+
+		if (pubkey.getLifetime() > 0) {
+			final String nickname = pubkey.getNickname();
+			pubkeyTimer.schedule(new TimerTask() {
+				@Override
+				public void run() {
+					Log.d(TAG, "Unloading from memory key: " + nickname);
+					removeKey(nickname);
+				}
+			}, pubkey.getLifetime() * 1000);
+		}
+
+		Log.d(TAG, String.format("Added key '%s' to in-memory cache", pubkey.getNickname()));
+	}
+
+	public boolean removeKey(String nickname) {
+		Log.d(TAG, String.format("Removed key '%s' to in-memory cache", nickname));
+		return loadedKeypairs.remove(nickname) != null;
+	}
+
+	public boolean removeKey(byte[] publicKey) {
+		String nickname = null;
+		for (Entry<String,KeyHolder> entry : loadedKeypairs.entrySet()) {
+			if (Arrays.equals(entry.getValue().openSSHPubkey, publicKey)) {
+				nickname = entry.getKey();
+				break;
+			}
+		}
+
+		if (nickname != null) {
+			Log.d(TAG, String.format("Removed key '%s' to in-memory cache", nickname));
+			return removeKey(nickname);
+		} else
+			return false;
+	}
+
+	public KeyPair getKey(String nickname) {
+		if (loadedKeypairs.containsKey(nickname)) {
+			KeyHolder keyHolder = loadedKeypairs.get(nickname);
+			return keyHolder.pair;
+		} else
+			return null;
+	}
+
+	public KeyPair getKey(byte[] publicKey) {
+		for (KeyHolder keyHolder : loadedKeypairs.values()) {
+			if (Arrays.equals(keyHolder.openSSHPubkey, publicKey))
+				return keyHolder.pair;
+		}
+		return null;
+	}
+
+	public String getKeyNickname(byte[] publicKey) {
+		for (Entry<String,KeyHolder> entry : loadedKeypairs.entrySet()) {
+			if (Arrays.equals(entry.getValue().openSSHPubkey, publicKey))
+				return entry.getKey();
+		}
+		return null;
+	}
+
+	private void stopWithDelay() {
+		// TODO add in a way to check whether keys loaded are encrypted and only
+		// set timer when we have an encrypted key loaded
+
+		if (loadedKeypairs.size() > 0) {
+			synchronized (this) {
+				if (idleTimer == null)
+					idleTimer = new Timer("idleTimer", true);
+
+				idleTimer.schedule(new IdleTask(), IDLE_TIMEOUT);
+			}
+		} else {
+			Log.d(TAG, "Stopping service immediately");
+			stopSelf();
+		}
+	}
+
+	protected void stopNow() {
+		if (bridges.size() == 0) {
+			stopSelf();
+		}
+	}
+
+	private synchronized void stopIdleTimer() {
+		if (idleTimer != null) {
+			idleTimer.cancel();
+			idleTimer = null;
+		}
+	}
+
+	public class TerminalBinder extends Binder {
+		public TerminalManager getService() {
+			return TerminalManager.this;
+		}
+	}
+
+	@Override
+	public IBinder onBind(Intent intent) {
+		Log.i(TAG, "Someone bound to TerminalManager");
+
+		setResizeAllowed(true);
+
+		stopIdleTimer();
+
+		// Make sure we stay running to maintain the bridges
+		startService(new Intent(this, TerminalManager.class));
+
+		return binder;
+	}
+
+	@Override
+	public int onStartCommand(Intent intent, int flags, int startId) {
+		/*
+		 * We want this service to continue running until it is explicitly
+		 * stopped, so return sticky.
+		 */
+		return START_STICKY;
+	}
+
+	@Override
+	public void onRebind(Intent intent) {
+		super.onRebind(intent);
+
+		setResizeAllowed(true);
+
+		Log.i(TAG, "Someone rebound to TerminalManager");
+
+		stopIdleTimer();
+	}
+
+	@Override
+	public boolean onUnbind(Intent intent) {
+		Log.i(TAG, "Someone unbound from TerminalManager");
+
+		setResizeAllowed(true);
+
+		if (bridges.size() == 0) {
+			stopWithDelay();
+		}
+
+		return true;
+	}
+
+	private class IdleTask extends TimerTask {
+		/* (non-Javadoc)
+		 * @see java.util.TimerTask#run()
+		 */
+		@Override
+		public void run() {
+			Log.d(TAG, String.format("Stopping service after timeout of ~%d seconds", IDLE_TIMEOUT / 1000));
+			TerminalManager.this.stopNow();
+		}
+	}
+
+	public void tryKeyVibrate() {
+		if (wantKeyVibration)
+			vibrate();
+	}
+
+	private void vibrate() {
+		if (vibrator != null)
+			vibrator.vibrate(VIBRATE_DURATION);
+	}
+
+	private void enableMediaPlayer() {
+		mediaPlayer = new MediaPlayer();
+
+		float volume = prefs.getFloat(PreferenceConstants.BELL_VOLUME,
+				PreferenceConstants.DEFAULT_BELL_VOLUME);
+
+		mediaPlayer.setAudioStreamType(AudioManager.STREAM_NOTIFICATION);
+		mediaPlayer.setOnCompletionListener(new BeepListener());
+
+		AssetFileDescriptor file = res.openRawResourceFd(R.raw.bell);
+		try {
+			mediaPlayer.setDataSource(file.getFileDescriptor(), file
+					.getStartOffset(), file.getLength());
+			file.close();
+			mediaPlayer.setVolume(volume, volume);
+			mediaPlayer.prepare();
+		} catch (IOException e) {
+			Log.e(TAG, "Error setting up bell media player", e);
+		}
+	}
+
+	private void disableMediaPlayer() {
+		if (mediaPlayer != null) {
+			mediaPlayer.release();
+			mediaPlayer = null;
+		}
+	}
+
+	public void playBeep() {
+		if (mediaPlayer != null)
+			mediaPlayer.start();
+
+		if (wantBellVibration)
+			vibrate();
+	}
+
+	private static class BeepListener implements OnCompletionListener {
+		public void onCompletion(MediaPlayer mp) {
+			mp.seekTo(0);
+		}
+	}
+
+	/**
+	 * Send system notification to user for a certain host. When user selects
+	 * the notification, it will bring them directly to the ConsoleActivity
+	 * displaying the host.
+	 *
+	 * @param host
+	 */
+	public void sendActivityNotification(HostBean host) {
+		if (!prefs.getBoolean(PreferenceConstants.BELL_NOTIFICATION, false))
+			return;
+
+		ConnectionNotifier.getInstance().showActivityNotification(this, host);
+	}
+
+	/* (non-Javadoc)
+	 * @see android.content.SharedPreferences.OnSharedPreferenceChangeListener#onSharedPreferenceChanged(android.content.SharedPreferences, java.lang.String)
+	 */
+	public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
+			String key) {
+		if (PreferenceConstants.BELL.equals(key)) {
+			boolean wantAudible = sharedPreferences.getBoolean(
+					PreferenceConstants.BELL, true);
+			if (wantAudible && mediaPlayer == null)
+				enableMediaPlayer();
+			else if (!wantAudible && mediaPlayer != null)
+				disableMediaPlayer();
+		} else if (PreferenceConstants.BELL_VOLUME.equals(key)) {
+			if (mediaPlayer != null) {
+				float volume = sharedPreferences.getFloat(
+						PreferenceConstants.BELL_VOLUME,
+						PreferenceConstants.DEFAULT_BELL_VOLUME);
+				mediaPlayer.setVolume(volume, volume);
+			}
+		} else if (PreferenceConstants.BELL_VIBRATE.equals(key)) {
+			wantBellVibration = sharedPreferences.getBoolean(
+					PreferenceConstants.BELL_VIBRATE, true);
+		} else if (PreferenceConstants.BUMPY_ARROWS.equals(key)) {
+			wantKeyVibration = sharedPreferences.getBoolean(
+					PreferenceConstants.BUMPY_ARROWS, true);
+		} else if (PreferenceConstants.WIFI_LOCK.equals(key)) {
+			final boolean lockingWifi = prefs.getBoolean(PreferenceConstants.WIFI_LOCK, true);
+			connectivityManager.setWantWifiLock(lockingWifi);
+		} else if (PreferenceConstants.MEMKEYS.equals(key)) {
+			updateSavingKeys();
+		}
+	}
+
+	/**
+	 * Allow {@link TerminalBridge} to resize when the parent has changed.
+	 * @param resizeAllowed
+	 */
+	public void setResizeAllowed(boolean resizeAllowed) {
+		this.resizeAllowed  = resizeAllowed;
+	}
+
+	public boolean isResizeAllowed() {
+		return resizeAllowed;
+	}
+
+	public static class KeyHolder {
+		public PubkeyBean bean;
+		public KeyPair pair;
+		public byte[] openSSHPubkey;
+	}
+
+	/**
+	 * Called when connectivity to the network is lost and it doesn't appear
+	 * we'll be getting a different connection any time soon.
+	 */
+	public void onConnectivityLost() {
+		final Thread t = new Thread() {
+			@Override
+			public void run() {
+				disconnectAll(false);
+			}
+		};
+		t.setName("Disconnector");
+		t.start();
+	}
+
+	/**
+	 * Called when connectivity to the network is restored.
+	 */
+	public void onConnectivityRestored() {
+		final Thread t = new Thread() {
+			@Override
+			public void run() {
+				reconnectPending();
+			}
+		};
+		t.setName("Reconnector");
+		t.start();
+	}
+
+	/**
+	 * Insert request into reconnect queue to be executed either immediately
+	 * or later when connectivity is restored depending on whether we're
+	 * currently connected.
+	 *
+	 * @param bridge the TerminalBridge to reconnect when possible
+	 */
+	public void requestReconnect(TerminalBridge bridge) {
+		synchronized (mPendingReconnect) {
+			mPendingReconnect.add(new WeakReference<TerminalBridge>(bridge));
+			if (!bridge.isUsingNetwork() ||
+					connectivityManager.isConnected()) {
+				reconnectPending();
+			}
+		}
+	}
+
+	/**
+	 * Reconnect all bridges that were pending a reconnect when connectivity
+	 * was lost.
+	 */
+	private void reconnectPending() {
+		synchronized (mPendingReconnect) {
+			for (WeakReference<TerminalBridge> ref : mPendingReconnect) {
+				TerminalBridge bridge = ref.get();
+				if (bridge == null) {
+					continue;
+				}
+				bridge.startConnection();
+			}
+			mPendingReconnect.clear();
+		}
+	}
+}