1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.googlecode.android_scripting.facade.telephony; 18 19 import android.content.ContentProvider; 20 import android.content.ContentValues; 21 import android.database.Cursor; 22 import android.net.Uri; 23 import android.os.ParcelFileDescriptor; 24 import android.text.TextUtils; 25 26 import java.io.File; 27 import java.io.FileNotFoundException; 28 29 /** 30 * A very simple content provider that can serve mms files from our cache directory so that 31 * SmsManager#sendMultimdeiaMessage and SmsManager#downloadMultimediaMessage can read/write 32 * the content of the MMS messages to send/download. 33 */ 34 public class MmsFileProvider extends ContentProvider { 35 @Override onCreate()36 public boolean onCreate() { 37 return true; 38 } 39 40 @Override query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder)41 public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, 42 String sortOrder) { 43 // Don't support queries. 44 return null; 45 } 46 47 @Override insert(Uri uri, ContentValues values)48 public Uri insert(Uri uri, ContentValues values) { 49 // Don't support inserts. 50 return null; 51 } 52 53 @Override delete(Uri uri, String selection, String[] selectionArgs)54 public int delete(Uri uri, String selection, String[] selectionArgs) { 55 // Don't support deletes. 56 return 0; 57 } 58 59 @Override update(Uri uri, ContentValues values, String selection, String[] selectionArgs)60 public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { 61 // Don't support updates. 62 return 0; 63 } 64 65 @Override getType(Uri uri)66 public String getType(Uri uri) { 67 // For this sample, assume all files have no type. 68 return null; 69 } 70 71 @Override openFile(Uri uri, String fileMode)72 public ParcelFileDescriptor openFile(Uri uri, String fileMode) throws FileNotFoundException { 73 File file = new File(getContext().getCacheDir(), uri.getPath()); 74 int mode = (TextUtils.equals(fileMode, "r") ? ParcelFileDescriptor.MODE_READ_ONLY : 75 ParcelFileDescriptor.MODE_WRITE_ONLY 76 | ParcelFileDescriptor.MODE_TRUNCATE 77 | ParcelFileDescriptor.MODE_CREATE); 78 return ParcelFileDescriptor.open(file, mode); 79 } 80 } 81