001/** 002 * 003 * Copyright © 2014-2019 Florian Schmaus 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.jivesoftware.smack.util.stringencoder.android; 018 019import java.nio.charset.StandardCharsets; 020 021import org.jivesoftware.smack.util.stringencoder.StringEncoder; 022 023import android.util.Base64; 024 025public final class AndroidBase64UrlSafeEncoder implements StringEncoder<String> { 026 027 private static AndroidBase64UrlSafeEncoder instance = new AndroidBase64UrlSafeEncoder(); 028 029 private static final int BASE64_ENCODER_FLAGS = Base64.URL_SAFE | Base64.NO_WRAP; 030 031 private AndroidBase64UrlSafeEncoder() { 032 // Use getInstance() 033 } 034 035 public static AndroidBase64UrlSafeEncoder getInstance() { 036 return instance; 037 } 038 039 @Override 040 public String encode(String string) { 041 return Base64.encodeToString(string.getBytes(StandardCharsets.UTF_8), BASE64_ENCODER_FLAGS); 042 } 043 044 @Override 045 public String decode(String string) { 046 byte[] bytes = Base64.decode(string, BASE64_ENCODER_FLAGS); 047 return new String(bytes, StandardCharsets.UTF_8); 048 } 049 050}