| /* |
| * Copyright (C) 2016 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.internal.telephony.dataconnection; |
| |
| |
| import android.content.ContentResolver; |
| import android.os.Handler; |
| import android.os.RegistrantList; |
| import android.os.SystemProperties; |
| import android.provider.Settings; |
| import android.telephony.Rlog; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| import android.util.LocalLog; |
| import android.util.Pair; |
| |
| import com.android.internal.telephony.Phone; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| |
| /** |
| * The class to hold different data enabled/disabled settings. Also it allows clients to register |
| * for overall data enabled setting changed event. |
| * @hide |
| */ |
| public class DataEnabledSettings { |
| |
| private static final String LOG_TAG = "DataEnabledSettings"; |
| |
| public static final int REASON_REGISTERED = 0; |
| |
| public static final int REASON_INTERNAL_DATA_ENABLED = 1; |
| |
| public static final int REASON_USER_DATA_ENABLED = 2; |
| |
| public static final int REASON_POLICY_DATA_ENABLED = 3; |
| |
| public static final int REASON_DATA_ENABLED_BY_CARRIER = 4; |
| |
| public static final int REASON_PROVISIONED_CHANGED = 5; |
| |
| public static final int REASON_PROVISIONING_DATA_ENABLED_CHANGED = 6; |
| |
| /** |
| * responds to the setInternalDataEnabled call - used internally to turn off data. |
| * For example during emergency calls |
| */ |
| private boolean mInternalDataEnabled = true; |
| |
| /** |
| * Flag indicating data allowed by network policy manager or not. |
| */ |
| private boolean mPolicyDataEnabled = true; |
| |
| /** |
| * Indicate if metered APNs are enabled by the carrier. set false to block all the metered APNs |
| * from continuously sending requests, which causes undesired network load. |
| */ |
| private boolean mCarrierDataEnabled = true; |
| |
| private boolean mIsDataEnabled = false; |
| |
| private Phone mPhone = null; |
| private ContentResolver mResolver = null; |
| |
| private final RegistrantList mDataEnabledChangedRegistrants = new RegistrantList(); |
| |
| private final LocalLog mSettingChangeLocalLog = new LocalLog(50); |
| |
| @Override |
| public String toString() { |
| return "[mInternalDataEnabled=" + mInternalDataEnabled |
| + ", isUserDataEnabled=" + isUserDataEnabled() |
| + ", isProvisioningDataEnabled=" + isProvisioningDataEnabled() |
| + ", mPolicyDataEnabled=" + mPolicyDataEnabled |
| + ", mCarrierDataEnabled=" + mCarrierDataEnabled + "]"; |
| } |
| |
| public DataEnabledSettings(Phone phone) { |
| mPhone = phone; |
| mResolver = mPhone.getContext().getContentResolver(); |
| updateDataEnabled(); |
| } |
| |
| public synchronized void setInternalDataEnabled(boolean enabled) { |
| localLog("InternalDataEnabled", enabled); |
| mInternalDataEnabled = enabled; |
| |
| updateDataEnabledAndNotify(REASON_INTERNAL_DATA_ENABLED); |
| } |
| public synchronized boolean isInternalDataEnabled() { |
| return mInternalDataEnabled; |
| } |
| |
| public synchronized void setUserDataEnabled(boolean enabled) { |
| localLog("UserDataEnabled", enabled); |
| Settings.Global.putInt(mResolver, getMobileDataSettingName(), enabled ? 1 : 0); |
| |
| updateDataEnabledAndNotify(REASON_USER_DATA_ENABLED); |
| } |
| |
| public synchronized boolean isUserDataEnabled() { |
| boolean defaultVal = "true".equalsIgnoreCase(SystemProperties.get( |
| "ro.com.android.mobiledata", "true")); |
| |
| return (Settings.Global.getInt(mResolver, getMobileDataSettingName(), |
| defaultVal ? 1 : 0) != 0); |
| } |
| |
| private String getMobileDataSettingName() { |
| // For single SIM phones, this is a per phone property. Or if it's invalid subId, we |
| // read default setting. |
| int subId = mPhone.getSubId(); |
| if (TelephonyManager.getDefault().getSimCount() == 1 |
| || !SubscriptionManager.isValidSubscriptionId(subId)) { |
| return Settings.Global.MOBILE_DATA; |
| } else { |
| return Settings.Global.MOBILE_DATA + mPhone.getSubId(); |
| } |
| } |
| |
| public synchronized void setPolicyDataEnabled(boolean enabled) { |
| localLog("PolicyDataEnabled", enabled); |
| mPolicyDataEnabled = enabled; |
| |
| updateDataEnabledAndNotify(REASON_POLICY_DATA_ENABLED); |
| } |
| |
| public synchronized boolean isPolicyDataEnabled() { |
| return mPolicyDataEnabled; |
| } |
| |
| public synchronized void setCarrierDataEnabled(boolean enabled) { |
| localLog("CarrierDataEnabled", enabled); |
| mCarrierDataEnabled = enabled; |
| |
| updateDataEnabledAndNotify(REASON_DATA_ENABLED_BY_CARRIER); |
| } |
| |
| public synchronized boolean isCarrierDataEnabled() { |
| return mCarrierDataEnabled; |
| } |
| |
| public synchronized void updateProvisionedChanged() { |
| updateDataEnabledAndNotify(REASON_PROVISIONED_CHANGED); |
| } |
| |
| public synchronized void updateProvisioningDataEnabled() { |
| updateDataEnabledAndNotify(REASON_PROVISIONING_DATA_ENABLED_CHANGED); |
| } |
| |
| public synchronized boolean isDataEnabled() { |
| return mIsDataEnabled; |
| } |
| |
| private synchronized void updateDataEnabledAndNotify(int reason) { |
| boolean prevDataEnabled = mIsDataEnabled; |
| |
| updateDataEnabled(); |
| |
| if (prevDataEnabled != mIsDataEnabled) { |
| notifyDataEnabledChanged(!prevDataEnabled, reason); |
| } |
| } |
| |
| private synchronized void updateDataEnabled() { |
| if (isProvisioning()) { |
| mIsDataEnabled = isProvisioningDataEnabled(); |
| } else { |
| mIsDataEnabled = mInternalDataEnabled && isUserDataEnabled() |
| && mPolicyDataEnabled && mCarrierDataEnabled; |
| } |
| } |
| |
| public boolean isProvisioning() { |
| return Settings.Global.getInt(mResolver, Settings.Global.DEVICE_PROVISIONED, 0) == 0; |
| } |
| /** |
| * In provisioning, we might want to have enable mobile data during provisioning. It depends |
| * on value of Settings.Global.DEVICE_PROVISIONING_MOBILE_DATA_ENABLED which is set by |
| * setupwizard. It only matters if it's in provisioning stage. |
| * @return whether we are enabling userData during provisioning stage. |
| */ |
| public boolean isProvisioningDataEnabled() { |
| final String prov_property = SystemProperties.get("ro.com.android.prov_mobiledata", |
| "false"); |
| boolean retVal = "true".equalsIgnoreCase(prov_property); |
| |
| final int prov_mobile_data = Settings.Global.getInt(mResolver, |
| Settings.Global.DEVICE_PROVISIONING_MOBILE_DATA_ENABLED, |
| retVal ? 1 : 0); |
| retVal = prov_mobile_data != 0; |
| log("getDataEnabled during provisioning retVal=" + retVal + " - (" + prov_property |
| + ", " + prov_mobile_data + ")"); |
| |
| return retVal; |
| } |
| |
| private void notifyDataEnabledChanged(boolean enabled, int reason) { |
| mDataEnabledChangedRegistrants.notifyResult(new Pair<>(enabled, reason)); |
| } |
| |
| public void registerForDataEnabledChanged(Handler h, int what, Object obj) { |
| mDataEnabledChangedRegistrants.addUnique(h, what, obj); |
| notifyDataEnabledChanged(isDataEnabled(), REASON_REGISTERED); |
| } |
| |
| public void unregisterForDataEnabledChanged(Handler h) { |
| mDataEnabledChangedRegistrants.remove(h); |
| } |
| |
| private void log(String s) { |
| Rlog.d(LOG_TAG, "[" + mPhone.getPhoneId() + "]" + s); |
| } |
| |
| private void localLog(String name, boolean value) { |
| mSettingChangeLocalLog.log(name + " change to " + value); |
| } |
| |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| pw.println(" DataEnabledSettings="); |
| mSettingChangeLocalLog.dump(fd, pw, args); |
| } |
| } |