/**
* Generates an SSL-enabled socket.
*
* @return the new socket
* @throws GeneralSecurityException on error building the socket
* @throws IOException on error loading the KeyStore
*/
private SSLSocket getSslSocket(RemoteDevice target)
throws GeneralSecurityException, IOException {
// Build a new key store based on the key store manager.
KeyManager[] keyManagers = coreService.getKeyStoreManager().getKeyManagers();
TrustManager[] trustManagers = coreService.getKeyStoreManager().getTrustManagers();
if (keyManagers.length == 0) {
throw new IllegalStateException("No key managers");
}
// Create a new SSLContext, using the new KeyManagers and TrustManagers
// as the sources of keys and trust decisions, respectively.
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(keyManagers, trustManagers, null);
// Finally, build a new SSLSocketFactory from the SSLContext, and
// then generate a new SSLSocket from it.
SSLSocketFactory factory = sslContext.getSocketFactory();
SSLSocket sock = (SSLSocket) factory.createSocket();
sock.setNeedClientAuth(true);
sock.setUseClientMode(true);
sock.setKeepAlive(true);
sock.setTcpNoDelay(true);
InetSocketAddress fullAddr = new InetSocketAddress(target.getAddress(), target.getPort());
sock.connect(fullAddr, SOCKET_CREATION_TIMEOUT_MS);
sock.startHandshake();
return sock;
}
/** Loads an existing configuration, and builds the socket to the target. */
private void loadConfig() {
SharedPreferences pref = getSharedPreferences(SHARED_PREF_NAME, MODE_PRIVATE);
RemoteDevice restoredTarget = loadRemoteDevice(pref, "");
for (int i = 0; i < getResources().getInteger(R.integer.recently_connected_count); ++i) {
RemoteDevice remoteDevice = loadRemoteDevice(pref, "_" + i);
if (remoteDevice != null) {
recentlyConnected.put(remoteDevice.getAddress(), remoteDevice);
}
}
if (restoredTarget != null) {
setTarget(restoredTarget);
}
}
private void addRecentlyConnected(RemoteDevice remoteDevice) {
recentlyConnected.remove(remoteDevice.getAddress());
recentlyConnected.put(remoteDevice.getAddress(), remoteDevice);
storeConfig();
}
private void storeRemoteDevice(
SharedPreferences.Editor prefEdit, String suffix, RemoteDevice remoteDevice) {
prefEdit.putString(DEVICE_NAME_TAG + suffix, remoteDevice.getName());
prefEdit.putString(DEVICE_IP_TAG + suffix, remoteDevice.getAddress().getHostAddress());
prefEdit.putInt(DEVICE_PORT_TAG + suffix, remoteDevice.getPort());
}
