Add and enforce ALLOW_METERED column.

Include flag with each download to indicate if its allowed to proceed
over metered networks.  Downloads are left in WAITING_FOR_NETWORK
state, similar to how ALLOWED_NETWORK_TYPES is handled.

Also keep blocked downloads in WAITING_FOR_NETWORK state instead
of marking them as failed.

Bug: 3001465, 5734560
Change-Id: I80bb9aa9bd25ddf6f7a2472db344b6ba6878bd74

src/com/android/providers/downloads/DownloadInfo.java

@@ -92,6 +92,7 @@ public class DownloadInfo {
             info.mIsPublicApi = getInt(Downloads.Impl.COLUMN_IS_PUBLIC_API) != 0;
             info.mAllowedNetworkTypes = getInt(Downloads.Impl.COLUMN_ALLOWED_NETWORK_TYPES);
             info.mAllowRoaming = getInt(Downloads.Impl.COLUMN_ALLOW_ROAMING) != 0;
+            info.mAllowMetered = getInt(Downloads.Impl.COLUMN_ALLOW_METERED) != 0;
             info.mTitle = getString(Downloads.Impl.COLUMN_TITLE);
             info.mDescription = getString(Downloads.Impl.COLUMN_DESCRIPTION);
             info.mBypassRecommendedSizeLimit =
@@ -221,6 +222,7 @@ public class DownloadInfo {
     public boolean mIsPublicApi;
     public int mAllowedNetworkTypes;
     public boolean mAllowRoaming;
+    public boolean mAllowMetered;
     public String mTitle;
     public String mDescription;
     public int mBypassRecommendedSizeLimit;
@@ -352,6 +354,9 @@ public class DownloadInfo {
         if (!isRoamingAllowed() && mSystemFacade.isNetworkRoaming()) {
             return NETWORK_CANNOT_USE_ROAMING;
         }
+        if (!mAllowMetered && mSystemFacade.isActiveNetworkMetered()) {
+            return NETWORK_TYPE_DISALLOWED_BY_REQUESTOR;
+        }
         return checkIsNetworkTypeAllowed(info.getType());
     }
 
@@ -518,6 +523,7 @@ public class DownloadInfo {
 
         pw.printPair("mAllowedNetworkTypes", mAllowedNetworkTypes);
         pw.printPair("mAllowRoaming", mAllowRoaming);
+        pw.printPair("mAllowMetered", mAllowMetered);
         pw.println();
 
         pw.decreaseIndent();

src/com/android/providers/downloads/DownloadProvider.java

@@ -63,7 +63,7 @@ public final class DownloadProvider extends ContentProvider {
     /** Database filename */
     private static final String DB_NAME = "downloads.db";
     /** Current database version */
-    private static final int DB_VERSION = 107;
+    private static final int DB_VERSION = 108;
     /** Name of table in the database */
     private static final String DB_TABLE = "downloads";
 
@@ -308,6 +308,11 @@ public final class DownloadProvider extends ContentProvider {
                     addColumn(db, DB_TABLE, Downloads.Impl.COLUMN_ERROR_MSG, "TEXT");
                     break;
 
+                case 108:
+                    addColumn(db, DB_TABLE, Downloads.Impl.COLUMN_ALLOW_METERED,
+                            "INTEGER NOT NULL DEFAULT 1");
+                    break;
+
                 default:
                     throw new IllegalStateException("Don't know how to upgrade to " + version);
             }
@@ -632,6 +637,7 @@ public final class DownloadProvider extends ContentProvider {
         if (isPublicApi) {
             copyInteger(Downloads.Impl.COLUMN_ALLOWED_NETWORK_TYPES, values, filteredValues);
             copyBoolean(Downloads.Impl.COLUMN_ALLOW_ROAMING, values, filteredValues);
+            copyBoolean(Downloads.Impl.COLUMN_ALLOW_METERED, values, filteredValues);
         }
 
         if (Constants.LOGVV) {
@@ -767,6 +773,7 @@ public final class DownloadProvider extends ContentProvider {
         values.remove(Downloads.Impl.COLUMN_NOTIFICATION_PACKAGE); // checked later in insert()
         values.remove(Downloads.Impl.COLUMN_ALLOWED_NETWORK_TYPES);
         values.remove(Downloads.Impl.COLUMN_ALLOW_ROAMING);
+        values.remove(Downloads.Impl.COLUMN_ALLOW_METERED);
         values.remove(Downloads.Impl.COLUMN_IS_VISIBLE_IN_DOWNLOADS_UI);
         values.remove(Downloads.Impl.COLUMN_MEDIA_SCANNED);
         Iterator<Map.Entry<String, Object>> iterator = values.valueSet().iterator();

src/com/android/providers/downloads/DownloadThread.java

@@ -270,8 +270,6 @@ public class DownloadThread extends Thread {
             } else if (networkUsable == DownloadInfo.NETWORK_RECOMMENDED_UNUSABLE_DUE_TO_SIZE) {
                 status = Downloads.Impl.STATUS_QUEUED_FOR_WIFI;
                 mInfo.notifyPauseDueToSize(false);
-            } else if (networkUsable == DownloadInfo.NETWORK_BLOCKED) {
-                status = Downloads.Impl.STATUS_BLOCKED;
             }
             throw new StopRequestException(status,
                     mInfo.getLogMessageForNetworkError(networkUsable));
@@ -806,8 +804,6 @@ public class DownloadThread extends Thread {
                 case DownloadInfo.NETWORK_UNUSABLE_DUE_TO_SIZE:
                 case DownloadInfo.NETWORK_RECOMMENDED_UNUSABLE_DUE_TO_SIZE:
                     return Downloads.Impl.STATUS_QUEUED_FOR_WIFI;
-                case DownloadInfo.NETWORK_BLOCKED:
-                    return Downloads.Impl.STATUS_BLOCKED;
                 default:
                     return Downloads.Impl.STATUS_WAITING_FOR_NETWORK;
             }

src/com/android/providers/downloads/RealSystemFacade.java

@@ -42,6 +42,12 @@ class RealSystemFacade implements SystemFacade {
         return activeInfo;
     }
 
+    @Override
+    public boolean isActiveNetworkMetered() {
+        final ConnectivityManager conn = ConnectivityManager.from(mContext);
+        return conn.isActiveNetworkMetered();
+    }
+
     public boolean isNetworkRoaming() {
         ConnectivityManager connectivity =
             (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);

src/com/android/providers/downloads/SystemFacade.java

@@ -19,6 +19,8 @@ interface SystemFacade {
      */
     public NetworkInfo getActiveNetworkInfo(int uid);
 
+    public boolean isActiveNetworkMetered();
+
     /**
      * @see android.telephony.TelephonyManager#isNetworkRoaming
      */

tests/src/com/android/providers/downloads/FakeSystemFacade.java

@@ -18,6 +18,7 @@ public class FakeSystemFacade implements SystemFacade {
     long mTimeMillis = 0;
     Integer mActiveNetworkType = ConnectivityManager.TYPE_WIFI;
     boolean mIsRoaming = false;
+    boolean mIsMetered = false;
     Long mMaxBytesOverMobile = null;
     Long mRecommendedMaxBytesOverMobile = null;
     List<Intent> mBroadcastsSent = new ArrayList<Intent>();
@@ -45,6 +46,11 @@ public class FakeSystemFacade implements SystemFacade {
         }
     }
 
+    @Override
+    public boolean isActiveNetworkMetered() {
+        return mIsMetered;
+    }
+
     public boolean isNetworkRoaming() {
         return mIsRoaming;
     }