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/*
* Copyright (C) 2015 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.wifi;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.ConnectivityManager.NetworkCallback;
import android.net.Network;
import android.net.NetworkInfo;
import android.net.NetworkCapabilities;
import android.net.NetworkRequest;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.CheckBox;
import android.widget.TextView;
import com.android.internal.app.AlertActivity;
import com.android.internal.app.AlertController;
import com.android.settings.R;
import static android.net.NetworkCapabilities.NET_CAPABILITY_VALIDATED;
public final class WifiNoInternetDialog extends AlertActivity implements
DialogInterface.OnClickListener {
private static final String TAG = "WifiNoInternetDialog";
private ConnectivityManager mCM;
private Network mNetwork;
private String mNetworkName;
private ConnectivityManager.NetworkCallback mNetworkCallback;
private CheckBox mAlwaysAllow;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final Intent intent = getIntent();
if (intent == null ||
!intent.getAction().equals(ConnectivityManager.ACTION_PROMPT_UNVALIDATED) ||
!"netId".equals(intent.getScheme())) {
Log.e(TAG, "Unexpected intent " + intent + ", exiting");
finish();
return;
}
try {
mNetwork = new Network(Integer.parseInt(intent.getData().getSchemeSpecificPart()));
} catch (NullPointerException|NumberFormatException e) {
mNetwork = null;
}
if (mNetwork == null) {
Log.e(TAG, "Can't determine network from '" + intent.getData() + "' , exiting");
finish();
return;
}
// TODO: add a registerNetworkCallback(Network network, NetworkCallback networkCallback) and
// simplify this.
final NetworkRequest request = new NetworkRequest.Builder().clearCapabilities().build();
mNetworkCallback = new NetworkCallback() {
@Override
public void onLost(Network network) {
// Close the dialog if the network disconnects.
if (mNetwork.equals(network)) {
Log.d(TAG, "Network " + mNetwork + " disconnected");
finish();
}
}
@Override
public void onCapabilitiesChanged(Network network, NetworkCapabilities nc) {
// Close the dialog if the network validates.
if (mNetwork.equals(network) && nc.hasCapability(NET_CAPABILITY_VALIDATED)) {
Log.d(TAG, "Network " + mNetwork + " validated");
finish();
}
}
};
mCM = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
mCM.registerNetworkCallback(request, mNetworkCallback);
final NetworkInfo ni = mCM.getNetworkInfo(mNetwork);
if (ni == null || !ni.isConnectedOrConnecting()) {
Log.d(TAG, "Network " + mNetwork + " is not connected: " + ni);
finish();
return;
}
mNetworkName = ni.getExtraInfo();
if (mNetworkName != null) {
mNetworkName = mNetworkName.replaceAll("^\"|\"$", ""); // Remove double quotes
}
createDialog();
}
private void createDialog() {
mAlert.setIcon(R.drawable.ic_settings_wireless);
final AlertController.AlertParams ap = mAlertParams;
ap.mTitle = mNetworkName;
ap.mMessage = getString(R.string.no_internet_access_text);
ap.mPositiveButtonText = getString(R.string.yes);
ap.mNegativeButtonText = getString(R.string.no);
ap.mPositiveButtonListener = this;
ap.mNegativeButtonListener = this;
final LayoutInflater inflater = LayoutInflater.from(ap.mContext);
final View checkbox = inflater.inflate(
com.android.internal.R.layout.always_use_checkbox, null);
ap.mView = checkbox;
mAlwaysAllow = (CheckBox) checkbox.findViewById(com.android.internal.R.id.alwaysUse);
mAlwaysAllow.setText(getString(R.string.no_internet_access_remember));
setupAlert();
}
@Override
protected void onDestroy() {
if (mNetworkCallback != null) {
mCM.unregisterNetworkCallback(mNetworkCallback);
mNetworkCallback = null;
}
super.onDestroy();
}
public void onClick(DialogInterface dialog, int which) {
final boolean accept = (which == BUTTON_POSITIVE);
final String action = (accept ? "Connect" : "Ignore");
final boolean always = mAlwaysAllow.isChecked();
switch (which) {
case BUTTON_POSITIVE:
case BUTTON_NEGATIVE:
mCM.setAcceptUnvalidated(mNetwork, accept, always);
Log.d(TAG, action + " network=" + mNetwork + (always ? " and remember" : ""));
break;
default:
break;
}
}
}
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