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/*
* Copyright (C) 2009 The Android Open Source Project
*
* 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 com.android.settings.vpn;
import com.android.settings.R;
import android.app.Dialog;
import android.content.ComponentName;
import android.content.Context;
import android.content.ServiceConnection;
import android.net.vpn.IVpnService;
import android.net.vpn.VpnManager;
import android.net.vpn.VpnProfile;
import android.net.vpn.VpnState;
import android.os.IBinder;
import android.os.RemoteException;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.CheckBox;
import android.widget.TextView;
import java.io.IOException;
/**
* A {@link VpnProfileActor} that provides an authentication view for users to
* input username and password before connecting to the VPN server.
*/
public class AuthenticationActor implements VpnProfileActor {
private static final String TAG = AuthenticationActor.class.getName();
private static final int ONE_SECOND = 1000; // ms
private Context mContext;
private VpnProfile mProfile;
private VpnManager mVpnManager;
public AuthenticationActor(Context context, VpnProfile p) {
mContext = context;
mProfile = p;
mVpnManager = new VpnManager(context);
}
//@Override
public VpnProfile getProfile() {
return mProfile;
}
//@Override
public boolean isConnectDialogNeeded() {
return true;
}
//@Override
public String validateInputs(Dialog d) {
TextView usernameView = (TextView) d.findViewById(R.id.username_value);
TextView passwordView = (TextView) d.findViewById(R.id.password_value);
Context c = mContext;
if (TextUtils.isEmpty(usernameView.getText().toString())) {
return c.getString(R.string.vpn_a_username);
} else if (TextUtils.isEmpty(passwordView.getText().toString())) {
return c.getString(R.string.vpn_a_password);
} else {
return null;
}
}
//@Override
public void connect(Dialog d) {
TextView usernameView = (TextView) d.findViewById(R.id.username_value);
TextView passwordView = (TextView) d.findViewById(R.id.password_value);
CheckBox saveUsername = (CheckBox) d.findViewById(R.id.save_username);
try {
setSavedUsername(saveUsername.isChecked()
? usernameView.getText().toString()
: "");
} catch (IOException e) {
Log.e(TAG, "setSavedUsername()", e);
}
connect(usernameView.getText().toString(),
passwordView.getText().toString());
passwordView.setText("");
}
//@Override
public View createConnectView() {
View v = View.inflate(mContext, R.layout.vpn_connect_dialog_view, null);
TextView usernameView = (TextView) v.findViewById(R.id.username_value);
TextView passwordView = (TextView) v.findViewById(R.id.password_value);
CheckBox saveUsername = (CheckBox) v.findViewById(R.id.save_username);
String username = mProfile.getSavedUsername();
if (!TextUtils.isEmpty(username)) {
usernameView.setText(username);
saveUsername.setChecked(true);
passwordView.requestFocus();
}
return v;
}
protected Context getContext() {
return mContext;
}
private void connect(final String username, final String password) {
mVpnManager.startVpnService();
ServiceConnection c = new ServiceConnection() {
public void onServiceConnected(ComponentName className,
IBinder service) {
try {
boolean success = IVpnService.Stub.asInterface(service)
.connect(mProfile, username, password);
if (!success) {
Log.d(TAG, "~~~~~~ connect() failed!");
} else {
Log.d(TAG, "~~~~~~ connect() succeeded!");
}
} catch (Throwable e) {
Log.e(TAG, "connect()", e);
broadcastConnectivity(VpnState.IDLE,
VpnManager.VPN_ERROR_CONNECTION_FAILED);
} finally {
mContext.unbindService(this);
}
}
public void onServiceDisconnected(ComponentName className) {
checkStatus();
}
};
if (!bindService(c)) {
broadcastConnectivity(VpnState.IDLE,
VpnManager.VPN_ERROR_CONNECTION_FAILED);
}
}
//@Override
public void disconnect() {
ServiceConnection c = new ServiceConnection() {
public void onServiceConnected(ComponentName className,
IBinder service) {
try {
IVpnService.Stub.asInterface(service).disconnect();
} catch (RemoteException e) {
Log.e(TAG, "disconnect()", e);
checkStatus();
} finally {
mContext.unbindService(this);
}
}
public void onServiceDisconnected(ComponentName className) {
checkStatus();
}
};
if (!bindService(c)) {
checkStatus();
}
}
//@Override
public void checkStatus() {
ServiceConnection c = new ServiceConnection() {
public synchronized void onServiceConnected(ComponentName className,
IBinder service) {
try {
IVpnService.Stub.asInterface(service).checkStatus(mProfile);
} catch (RemoteException e) {
Log.e(TAG, "checkStatus()", e);
broadcastConnectivity(VpnState.IDLE);
} finally {
notify();
}
}
public void onServiceDisconnected(ComponentName className) {
// do nothing
}
};
if (bindService(c)) {
// wait for a second, let status propagate
wait(c, ONE_SECOND);
mContext.unbindService(c);
}
}
private boolean bindService(ServiceConnection c) {
return mVpnManager.bindVpnService(c);
}
private void broadcastConnectivity(VpnState s) {
mVpnManager.broadcastConnectivity(mProfile.getName(), s);
}
private void broadcastConnectivity(VpnState s, int errorCode) {
mVpnManager.broadcastConnectivity(mProfile.getName(), s, errorCode);
}
private void wait(Object o, int ms) {
synchronized (o) {
try {
o.wait(ms);
} catch (Exception e) {}
}
}
private void setSavedUsername(String name) throws IOException {
if (!name.equals(mProfile.getSavedUsername())) {
mProfile.setSavedUsername(name);
VpnSettings.saveProfileToStorage(mProfile);
}
}
}
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