app link handling under restricted mobile data

1. new actions to allow default carrier app dynamically enable/disable
app-link filtering
2. new intent to notify registered carrier apps of other default
networks
3. signal-to-actions config to sepcify carrier actions on default
network change
default network available -> disable intent filter for app-link
defaut network lost -> enable intent filter for app-link
4. new carrier actions to allow carrier apps to register/unregister
other network status dynmacially

Bug: 62487488
Test: Manual
Change-Id: Ie9fa9f3f4ca38f9f26a90a3dbf95f7f20a8ad773

3 files changed, 89 insertions, 6 deletions

diff --git a/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CaptivePortalLoginActivity.java b/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CaptivePortalLoginActivity.java
index ae8fc80f03c7..20aaaa96198d 100644
--- a/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CaptivePortalLoginActivity.java
+++ b/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CaptivePortalLoginActivity.java
@@ -20,6 +20,9 @@ import android.app.Activity;
 import android.app.LoadedApk;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.ActivityInfo;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
 import android.net.ConnectivityManager;
 import android.net.ConnectivityManager.NetworkCallback;
@@ -34,6 +37,7 @@ import android.os.Bundle;
 import android.telephony.CarrierConfigManager;
 import android.telephony.Rlog;
 import android.telephony.SubscriptionManager;
+import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.Log;
 import android.util.TypedValue;
@@ -68,7 +72,7 @@ public class CaptivePortalLoginActivity extends Activity {
     private static final boolean DBG = true;
 
     private static final int SOCKET_TIMEOUT_MS = 10 * 1000;
-    public static final int NETWORK_REQUEST_TIMEOUT_MS = 5 * 1000;
+    private static final int NETWORK_REQUEST_TIMEOUT_MS = 5 * 1000;
 
     private URL mUrl;
     private Network mNetwork;
@@ -182,16 +186,19 @@ public class CaptivePortalLoginActivity extends Activity {
             CarrierActionUtils.applyCarrierAction(
                     CarrierActionUtils.CARRIER_ACTION_CANCEL_ALL_NOTIFICATIONS, getIntent(),
                     getApplicationContext());
-
+            CarrierActionUtils.applyCarrierAction(
+                    CarrierActionUtils.CARRIER_ACTION_DISABLE_DEFAULT_URL_HANDLER, getIntent(),
+                    getApplicationContext());
+            CarrierActionUtils.applyCarrierAction(
+                    CarrierActionUtils.CARRIER_ACTION_DEREGISTER_DEFAULT_NETWORK_AVAIL, getIntent(),
+                    getApplicationContext());
         }
         finishAndRemoveTask();
     }
 
     private URL getUrlForCaptivePortal() {
         String url = getIntent().getStringExtra(TelephonyIntents.EXTRA_REDIRECTION_URL_KEY);
-        if (url.isEmpty()) {
-            url = mCm.getCaptivePortalServerUrl();
-        }
+        if (TextUtils.isEmpty(url)) url = mCm.getCaptivePortalServerUrl();
         final CarrierConfigManager configManager = getApplicationContext()
                 .getSystemService(CarrierConfigManager.class);
         final int subId = getIntent().getIntExtra(PhoneConstants.SUBSCRIPTION_KEY,
@@ -429,6 +436,27 @@ public class CaptivePortalLoginActivity extends Activity {
         }
     }
 
+    /**
+     * This alias presents the target activity, CaptivePortalLoginActivity, as a independent
+     * entity with its own intent filter to handle URL links. This alias will be enabled/disabled
+     * dynamically to handle url links based on the network conditions.
+     */
+    public static String getAlias(Context context) {
+        try {
+            PackageInfo p = context.getPackageManager().getPackageInfo(context.getPackageName(),
+                    PackageManager.GET_ACTIVITIES | PackageManager.MATCH_DISABLED_COMPONENTS);
+            for (ActivityInfo activityInfo : p.activities) {
+                String targetActivity = activityInfo.targetActivity;
+                if (CaptivePortalLoginActivity.class.getName().equals(targetActivity)) {
+                    return activityInfo.name;
+                }
+            }
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
     private static void logd(String s) {
         Rlog.d(TAG, s);
     }
diff --git a/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CarrierActionUtils.java b/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CarrierActionUtils.java
index 021330650975..a2bf964ec05f 100644
--- a/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CarrierActionUtils.java
+++ b/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CarrierActionUtils.java
@@ -19,8 +19,10 @@ import android.app.Notification;
 import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.content.res.Resources;
 import android.os.Bundle;
 import android.telephony.SubscriptionManager;
@@ -49,6 +51,10 @@ public class CarrierActionUtils {
     public static final int CARRIER_ACTION_SHOW_PORTAL_NOTIFICATION          = 4;
     public static final int CARRIER_ACTION_SHOW_NO_DATA_SERVICE_NOTIFICATION = 5;
     public static final int CARRIER_ACTION_CANCEL_ALL_NOTIFICATIONS          = 6;
+    public static final int CARRIER_ACTION_ENABLE_DEFAULT_URL_HANDLER        = 7;
+    public static final int CARRIER_ACTION_DISABLE_DEFAULT_URL_HANDLER       = 8;
+    public static final int CARRIER_ACTION_REGISTER_DEFAULT_NETWORK_AVAIL    = 9;
+    public static final int CARRIER_ACTION_DEREGISTER_DEFAULT_NETWORK_AVAIL  = 10;
 
     public static void applyCarrierAction(int actionIdx, Intent intent, Context context) {
         switch (actionIdx) {
@@ -73,6 +79,18 @@ public class CarrierActionUtils {
             case CARRIER_ACTION_CANCEL_ALL_NOTIFICATIONS:
                 onCancelAllNotifications(context);
                 break;
+            case CARRIER_ACTION_ENABLE_DEFAULT_URL_HANDLER:
+                onEnableDefaultURLHandler(context);
+                break;
+            case CARRIER_ACTION_DISABLE_DEFAULT_URL_HANDLER:
+                onDisableDefaultURLHandler(context);
+                break;
+            case CARRIER_ACTION_REGISTER_DEFAULT_NETWORK_AVAIL:
+                onRegisterDefaultNetworkAvail(intent, context);
+                break;
+            case CARRIER_ACTION_DEREGISTER_DEFAULT_NETWORK_AVAIL:
+                onDeregisterDefaultNetworkAvail(intent, context);
+                break;
             default:
                 loge("unsupported carrier action index: " + actionIdx);
         }
@@ -94,6 +112,38 @@ public class CarrierActionUtils {
         telephonyMgr.carrierActionSetMeteredApnsEnabled(subId, ENABLE);
     }
 
+    private static void onEnableDefaultURLHandler(Context context) {
+        logd("onEnableDefaultURLHandler");
+        final PackageManager pm = context.getPackageManager();
+        pm.setComponentEnabledSetting(
+                new ComponentName(context, CaptivePortalLoginActivity.getAlias(context)),
+                PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);
+    }
+
+    private static void onDisableDefaultURLHandler(Context context) {
+        logd("onDisableDefaultURLHandler");
+        final PackageManager pm = context.getPackageManager();
+        pm.setComponentEnabledSetting(
+                new ComponentName(context, CaptivePortalLoginActivity.getAlias(context)),
+                PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
+    }
+
+    private static void onRegisterDefaultNetworkAvail(Intent intent, Context context) {
+        int subId = intent.getIntExtra(PhoneConstants.SUBSCRIPTION_KEY,
+                SubscriptionManager.getDefaultVoiceSubscriptionId());
+        logd("onRegisterDefaultNetworkAvail subId: " + subId);
+        final TelephonyManager telephonyMgr = context.getSystemService(TelephonyManager.class);
+        telephonyMgr.carrierActionReportDefaultNetworkStatus(subId, true);
+    }
+
+    private static void onDeregisterDefaultNetworkAvail(Intent intent, Context context) {
+        int subId = intent.getIntExtra(PhoneConstants.SUBSCRIPTION_KEY,
+                SubscriptionManager.getDefaultVoiceSubscriptionId());
+        logd("onDeregisterDefaultNetworkAvail subId: " + subId);
+        final TelephonyManager telephonyMgr = context.getSystemService(TelephonyManager.class);
+        telephonyMgr.carrierActionReportDefaultNetworkStatus(subId, false);
+    }
+
     private static void onDisableRadio(Intent intent, Context context) {
         int subId = intent.getIntExtra(PhoneConstants.SUBSCRIPTION_KEY,
                 SubscriptionManager.getDefaultVoiceSubscriptionId());
diff --git a/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CustomConfigLoader.java b/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CustomConfigLoader.java
index d5d0b7926c83..02c61d778086 100644
--- a/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CustomConfigLoader.java
+++ b/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CustomConfigLoader.java
@@ -22,7 +22,6 @@ import android.telephony.CarrierConfigManager;
 import android.telephony.Rlog;
 import android.text.TextUtils;
 import android.util.Log;
-import android.util.Pair;
 
 import com.android.internal.telephony.TelephonyIntents;
 import com.android.internal.util.ArrayUtils;
@@ -95,6 +94,12 @@ public class CustomConfigLoader {
                     configs = b.getStringArray(CarrierConfigManager
                             .KEY_CARRIER_DEFAULT_ACTIONS_ON_RESET);
                     break;
+                case TelephonyIntents.ACTION_CARRIER_SIGNAL_DEFAULT_NETWORK_AVAILABLE:
+                    configs = b.getStringArray(CarrierConfigManager
+                            .KEY_CARRIER_DEFAULT_ACTIONS_ON_DEFAULT_NETWORK_AVAILABLE);
+                    arg1 = String.valueOf(intent.getBooleanExtra(TelephonyIntents
+                            .EXTRA_DEFAULT_NETWORK_AVAILABLE_KEY, false));
+                    break;
                 default:
                     Rlog.e(TAG, "load carrier config failure with un-configured key: " +
                             intent.getAction());