1 /* 2 * Copyright (C) 2014 Square, Inc. 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 package com.squareup.okhttp; 17 18 import javax.net.ssl.SSLSocket; 19 20 /** 21 * Versions of TLS that can be offered when negotiating a secure socket. See 22 * {@link SSLSocket#setEnabledProtocols}. 23 */ 24 public enum TlsVersion { 25 TLS_1_2("TLSv1.2"), // 2008. 26 TLS_1_1("TLSv1.1"), // 2006. 27 TLS_1_0("TLSv1"), // 1999. 28 SSL_3_0("SSLv3"), // 1996. 29 ; 30 31 final String javaName; 32 33 TlsVersion(String javaName) { 34 this.javaName = javaName; 35 } 36 37 public static TlsVersion forJavaName(String javaName) { 38 switch (javaName) { 39 case "TLSv1.2": return TLS_1_2; 40 case "TLSv1.1": return TLS_1_1; 41 case "TLSv1": return TLS_1_0; 42 case "SSLv3": return SSL_3_0; 43 } 44 throw new IllegalArgumentException("Unexpected TLS version: " + javaName); 45 } 46 47 public String javaName() { 48 return javaName; 49 } 50 } 51
