1 /*
2 * Copyright 2014 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. 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, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.handler.ssl;
17
18 import java.util.ArrayList;
19 import java.util.List;
20 import java.util.Set;
21
22 /**
23 * This class will not do any filtering of ciphers suites.
24 */
25 public final class IdentityCipherSuiteFilter implements CipherSuiteFilter {
26 public static final IdentityCipherSuiteFilter INSTANCE = new IdentityCipherSuiteFilter();
27
28 private IdentityCipherSuiteFilter() { }
29
30 @Override
31 public String[] filterCipherSuites(Iterable<String> ciphers, List<String> defaultCiphers,
32 Set<String> supportedCiphers) {
33 if (ciphers == null) {
34 return defaultCiphers.toArray(new String[defaultCiphers.size()]);
35 } else {
36 List<String> newCiphers = new ArrayList<String>(supportedCiphers.size());
37 for (String c : ciphers) {
38 if (c == null) {
39 break;
40 }
41 newCiphers.add(c);
42 }
43 return newCiphers.toArray(new String[newCiphers.size()]);
44 }
45 }
46
47 }