diff options
Diffstat (limited to 'src/com')
-rw-r--r-- | src/com/android/providers/downloads/DownloadProvider.java | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/com/android/providers/downloads/DownloadProvider.java b/src/com/android/providers/downloads/DownloadProvider.java index d9acc789..ef64e5e9 100644 --- a/src/com/android/providers/downloads/DownloadProvider.java +++ b/src/com/android/providers/downloads/DownloadProvider.java @@ -462,6 +462,19 @@ public final class DownloadProvider extends ContentProvider { if (appInfo != null) { mDefContainerUid = appInfo.uid; } + + // Grant access permissions for all known downloads to the owning apps + final SQLiteDatabase db = mOpenHelper.getReadableDatabase(); + final Cursor cursor = db.query(DB_TABLE, new String[] { + Downloads.Impl._ID, Constants.UID }, null, null, null, null, null); + try { + while (cursor.moveToNext()) { + grantAllDownloadsPermission(cursor.getLong(0), cursor.getInt(1)); + } + } finally { + cursor.close(); + } + // start the DownloadService class. don't wait for the 1st download to be issued. // saves us by getting some initialization code in DownloadService out of the way. Context context = getContext(); @@ -687,6 +700,7 @@ public final class DownloadProvider extends ContentProvider { } insertRequestHeaders(db, rowID, values); + grantAllDownloadsPermission(rowID, Binder.getCallingUid()); notifyContentChanged(uri, match); // Always start service to handle notifications and/or scanning @@ -1193,6 +1207,7 @@ public final class DownloadProvider extends ContentProvider { try { while (cursor.moveToNext()) { final long id = cursor.getLong(0); + revokeAllDownloadsPermission(id); DownloadStorageProvider.onDownloadProviderDelete(getContext(), id); final String path = cursor.getString(1); @@ -1413,4 +1428,20 @@ public final class DownloadProvider extends ContentProvider { to.put(key, defaultValue); } } + + private void grantAllDownloadsPermission(long id, int uid) { + final String[] packageNames = getContext().getPackageManager().getPackagesForUid(uid); + if (packageNames == null || packageNames.length == 0) return; + + // We only need to grant to the first package, since the + // platform internally tracks based on UIDs + final Uri uri = ContentUris.withAppendedId(Downloads.Impl.ALL_DOWNLOADS_CONTENT_URI, id); + getContext().grantUriPermission(packageNames[0], uri, + Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); + } + + private void revokeAllDownloadsPermission(long id) { + final Uri uri = ContentUris.withAppendedId(Downloads.Impl.ALL_DOWNLOADS_CONTENT_URI, id); + getContext().revokeUriPermission(uri, ~0); + } } |