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/*
* Copyright (C) 2017 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.carrierdefaultapp;
import android.app.job.JobInfo;
import android.app.job.JobParameters;
import android.app.job.JobScheduler;
import android.app.job.JobService;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.Network;
import android.net.NetworkCapabilities;
import android.provider.Settings;
import android.telephony.TelephonyManager;
import android.util.Log;
/**
* Service to run {@link android.app.job.JobScheduler} job.
* Service to monitor when there is a change to conent URI
* {@link android.provider.Settings.Global#DEVICE_PROVISIONED DEVICE_PROVISIONED}
*/
public class ProvisionObserver extends JobService {
private static final String TAG = ProvisionObserver.class.getSimpleName();
public static final int PROVISION_OBSERVER_REEVALUATION_JOB_ID = 1;
// minimum & maximum update delay TBD
private static final int CONTENT_UPDATE_DELAY_MS = 100;
private static final int CONTENT_MAX_DELAY_MS = 200;
@Override
public boolean onStartJob(JobParameters jobParameters) {
switch (jobParameters.getJobId()) {
case PROVISION_OBSERVER_REEVALUATION_JOB_ID:
if (isProvisioned(this)) {
Log.d(TAG, "device provisioned, force network re-evaluation");
final ConnectivityManager connMgr = getSystemService(ConnectivityManager.class);
Network[] info = connMgr.getAllNetworks();
for (Network nw : info) {
final NetworkCapabilities nc = connMgr.getNetworkCapabilities(nw);
if (nc.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)
&& nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) {
// force connectivity re-evaluation to assume skipped carrier actions.
// one of the following calls will match the last evaluation.
connMgr.reportNetworkConnectivity(nw, true);
connMgr.reportNetworkConnectivity(nw, false);
break;
}
}
}
default:
break;
}
return false;
}
@Override
public boolean onStopJob(JobParameters jobParameters) {
return false;
}
// Returns true if the device is not provisioned yet (in setup wizard), false otherwise
private static boolean isProvisioned(Context context) {
return Settings.Global.getInt(context.getContentResolver(),
Settings.Global.DEVICE_PROVISIONED, 0) == 1;
}
/**
* Static utility function to schedule a job to execute upon the change of content URI
* {@link android.provider.Settings.Global#DEVICE_PROVISIONED DEVICE_PROVISIONED}.
* @param context The context used to retrieve the {@link ComponentName} and system services
* @return true carrier actions are deferred due to phone provisioning process, false otherwise
*/
public static boolean isDeferredForProvision(Context context, Intent intent) {
if (isProvisioned(context)) {
return false;
}
int jobId;
switch(intent.getAction()) {
case TelephonyManager.ACTION_CARRIER_SIGNAL_REDIRECTED:
jobId = PROVISION_OBSERVER_REEVALUATION_JOB_ID;
break;
default:
return false;
}
final JobScheduler jobScheduler = (JobScheduler) context.getSystemService(
Context.JOB_SCHEDULER_SERVICE);
final JobInfo job = new JobInfo.Builder(jobId,
new ComponentName(context, ProvisionObserver.class))
.addTriggerContentUri(new JobInfo.TriggerContentUri(
Settings.Global.getUriFor(Settings.Global.DEVICE_PROVISIONED), 0))
.setTriggerContentUpdateDelay(CONTENT_UPDATE_DELAY_MS)
.setTriggerContentMaxDelay(CONTENT_MAX_DELAY_MS)
.build();
jobScheduler.schedule(job);
return true;
}
}
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