1 /* 2 * Copyright (C) 2008 Esmertec AG. 3 * Copyright (C) 2008 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.android.mms.drm; 19 20 import android.drm.DrmManagerClient; 21 import android.drm.DrmStore; 22 import android.net.Uri; 23 import android.util.Log; 24 25 import com.android.mms.MmsApp; 26 27 public class DrmUtils { 28 private static final String TAG = "DrmUtils"; 29 30 /** The MIME type of special DRM files */ 31 private static final String EXTENSION_ANDROID_FWDL = ".fl"; 32 33 private DrmUtils() { 34 } 35 36 public static String getConvertExtension(String mimetype) { 37 return EXTENSION_ANDROID_FWDL; 38 } 39 40 public static boolean isDrmType(String mimeType) { 41 boolean result = false; 42 DrmManagerClient drmManagerClient = MmsApp.getApplication().getDrmManagerClient(); 43 if (drmManagerClient != null) { 44 try { 45 if (drmManagerClient.canHandle("", mimeType)) { 46 result = true; 47 } 48 } catch (IllegalArgumentException ex) { 49 Log.w(TAG, "canHandle called with wrong parameters"); 50 } catch (IllegalStateException ex) { 51 Log.w(TAG, "DrmManagerClient didn't initialize properly"); 52 } 53 } 54 return result; 55 } 56 57 /** 58 * Check if content may be forwarded according to DRM 59 * 60 * @param uri Uri to content 61 * @return true if the content may be forwarded 62 */ 63 public static boolean haveRightsForAction(Uri uri, int action) { 64 DrmManagerClient drmManagerClient = MmsApp.getApplication().getDrmManagerClient(); 65 66 try { 67 // first check if the URI is registered as DRM in DRM-framework 68 if (drmManagerClient.canHandle(uri.toString(), null)) { 69 int check = drmManagerClient.checkRightsStatus(uri.toString(), action); 70 return (check == DrmStore.RightsStatus.RIGHTS_VALID); 71 } 72 } catch (Exception e) { 73 // Ignore exception and assume it is OK to forward file. 74 } finally { 75 } 76 return true; 77 } 78 } 79
