org.asynchttpclient.shaded.ws.WebSocketUtils Maven / Gradle / Ivy
/*
* Copyright (c) 2014 AsyncHttpClient Project. All rights reserved.
*
* This program is licensed to you under the Apache License Version 2.0,
* and you may not use this file except in compliance with the Apache License Version 2.0.
* You may obtain a copy of the Apache License Version 2.0 at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the Apache License Version 2.0 is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the Apache License Version 2.0 for the specific language governing permissions and limitations there under.
*/
package org.asynchttpclient.shaded.ws;
import org.asynchttpclient.shaded.io.netty.util.internal.ThreadLocalRandom;
import java.util.Base64;
import static java.nio.charset.StandardCharsets.US_ASCII;
import static org.asynchttpclient.shaded.util.MessageDigestUtils.pooledSha1MessageDigest;
public final class WebSocketUtils {
private static final String MAGIC_GUID = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
public static String getWebSocketKey() {
byte[] nonce = new byte[16];
ThreadLocalRandom random = ThreadLocalRandom.current();
for (int i = 0; i < nonce.length; i++) {
nonce[i] = (byte) random.nextInt(256);
}
return Base64.getEncoder().encodeToString(nonce);
}
public static String getAcceptKey(String key) {
return Base64.getEncoder().encodeToString(pooledSha1MessageDigest().digest(
(key + MAGIC_GUID).getBytes(US_ASCII)));
}
}