Add option to reset network settings to factory

bug:16161518
Change-Id: I7c0cc58d5385352c6c9af2b27af23a744b5df977

1 files changed, 200 insertions, 0 deletions

diff --git a/src/com/android/settings/ResetNetworkConfirm.java b/src/com/android/settings/ResetNetworkConfirm.java
new file mode 100644
index 0000000..28fd92d
--- /dev/null
+++ b/src/com/android/settings/ResetNetworkConfirm.java
@@ -0,0 +1,200 @@
+/*
+ * 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;
+
+import android.app.Fragment;
+import android.content.Context;
+import android.net.IConnectivityManager;
+import android.net.NetworkPolicy;
+import android.net.NetworkPolicyManager;
+import android.net.NetworkTemplate;
+import android.net.wifi.WifiConfiguration;
+import android.net.wifi.WifiManager;
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.telephony.SubscriptionInfo;
+import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyManager;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.Spinner;
+import android.widget.Toast;
+
+import com.android.internal.net.VpnConfig;
+import com.android.internal.telephony.Phone;
+import com.android.internal.telephony.PhoneConstants;
+import com.android.internal.telephony.PhoneFactory;
+import com.android.settings.net.NetworkPolicyEditor;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Confirm and execute a reset of the network settings to a clean "just out of the box"
+ * state.  Multiple confirmations are required: first, a general "are you sure
+ * you want to do this?" prompt, followed by a keyguard pattern trace if the user
+ * has defined one, followed by a final strongly-worded "THIS WILL RESET EVERYTHING"
+ * prompt.  If at any time the phone is allowed to go to sleep, is
+ * locked, et cetera, then the confirmation sequence is abandoned.
+ *
+ * This is the confirmation screen.
+ */
+public class ResetNetworkConfirm extends Fragment {
+
+    private View mContentView;
+    private int mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
+
+    /**
+     * The user has gone through the multiple confirmation, so now we go ahead
+     * and reset the network settings to its factory-default state.
+     */
+    private Button.OnClickListener mFinalClickListener = new Button.OnClickListener() {
+
+        @Override
+        public void onClick(View v) {
+            if (Utils.isMonkeyRunning()) {
+                return;
+            }
+            // TODO maybe show a progress dialog if this ends up taking a while
+
+            IConnectivityManager connectivityService = IConnectivityManager.Stub.asInterface(
+                    ServiceManager.getService(Context.CONNECTIVITY_SERVICE));
+            WifiManager wifiManager = (WifiManager)
+                    getActivity().getSystemService(Context.WIFI_SERVICE);
+            TelephonyManager telephonyManager = (TelephonyManager)
+                    getActivity().getSystemService(Context.TELEPHONY_SERVICE);
+            NetworkPolicyManager policyManager = NetworkPolicyManager.from(getActivity());
+            NetworkPolicyEditor policyEditor = new NetworkPolicyEditor(policyManager);
+            policyEditor.read();
+
+            // Turn airplane mode off
+            try {
+                connectivityService.setAirplaneMode(false);
+            } catch (RemoteException e) {
+                // Well, we tried
+            }
+
+            // Turn wifi on
+            wifiManager.setWifiEnabled(true);
+
+            // Delete all Wifi SSIDs
+            List<WifiConfiguration> networks = wifiManager.getConfiguredNetworks();
+            if (networks != null) {
+                for (WifiConfiguration config : networks) {
+                    wifiManager.removeNetwork(config.networkId);
+                }
+            }
+
+            // Turn mobile hotspot off
+            wifiManager.setWifiApEnabled(null, false);
+
+            // Un-tether
+            try {
+                for (String tether : connectivityService.getTetheredIfaces()) {
+                    connectivityService.untether(tether);
+                }
+            } catch (RemoteException e) {
+                // Well, we tried
+            }
+
+            // Turn VPN off
+            try {
+                VpnConfig vpnConfig = connectivityService.getVpnConfig();
+                if (vpnConfig != null) {
+                    if (vpnConfig.legacy) {
+                        connectivityService.prepareVpn(VpnConfig.LEGACY_VPN, VpnConfig.LEGACY_VPN);
+                    } else {
+                        // Prevent this app from initiating VPN connections in the future without
+                        // user intervention.
+                        connectivityService.setVpnPackageAuthorization(false);
+                        connectivityService.prepareVpn(vpnConfig.user, VpnConfig.LEGACY_VPN);
+                    }
+                }
+            } catch (RemoteException e) {
+                // Well, we tried
+            }
+
+            if (SubscriptionManager.isUsableSubIdValue(mSubId)) {
+                int phoneId = SubscriptionManager.getPhoneId(mSubId);
+                Phone phone = PhoneFactory.getPhone(phoneId);
+
+                // Turn mobile data on
+                phone.setDataEnabled(true);
+
+                // Set mobile network selection mode to automatic
+                phone.setNetworkSelectionModeAutomatic(null);
+
+                // Set preferred mobile network type to manufacturer's recommended
+                // int networkType = ; // TODO get manufacturer's default
+                // phone.setPreferredNetworkType(networkType, null);
+
+                // Turn roaming to manufacturer's default
+                // boolean enabled = ; // TODO get manufacturer's default
+                // phone.setDataRoamingEnabled(enabled);
+
+                String subscriberId = telephonyManager.getSubscriberId(mSubId);
+                NetworkTemplate template = NetworkTemplate.buildTemplateMobileAll(subscriberId);
+                // Turn mobile data limit off
+                policyEditor.setPolicyLimitBytes(template, NetworkPolicy.LIMIT_DISABLED);
+            }
+
+            // Turn restrict background data off
+            policyManager.setRestrictBackground(false);
+
+            // Remove app's "restrict background data" flag
+            for (int uid : policyManager.getUidsWithPolicy(
+                    NetworkPolicyManager.POLICY_REJECT_METERED_BACKGROUND)) {
+                policyManager.setUidPolicy(uid, NetworkPolicyManager.POLICY_NONE);
+            }
+
+            Toast.makeText(getActivity(), R.string.reset_network_complete_toast, Toast.LENGTH_SHORT)
+                    .show();
+        }
+    };
+
+    /**
+     * Configure the UI for the final confirmation interaction
+     */
+    private void establishFinalConfirmationState() {
+        mContentView.findViewById(R.id.execute_reset_network)
+                .setOnClickListener(mFinalClickListener);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        mContentView = inflater.inflate(R.layout.reset_network_confirm, null);
+        establishFinalConfirmationState();
+        return mContentView;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        Bundle args = getArguments();
+        if (args != null) {
+            mSubId = args.getInt(PhoneConstants.SUBSCRIPTION_KEY,
+                    SubscriptionManager.INVALID_SUBSCRIPTION_ID);
+        }
+    }
+}