package io.netty.handler.codec.http.websocketx;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.handler.codec.base64.Base64;
import io.netty.handler.codec.dns.DnsRecord;
import io.netty.util.CharsetUtil;
import io.netty.util.concurrent.FastThreadLocal;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/* JADX INFO: loaded from: classes.dex */
public final class WebSocketUtil {
    private static final FastThreadLocal<MessageDigest> MD5 = new FastThreadLocal<MessageDigest>() { // from class: io.netty.handler.codec.http.websocketx.WebSocketUtil.1
        @Override // io.netty.util.concurrent.FastThreadLocal
        public MessageDigest initialValue() {
            try {
                return MessageDigest.getInstance("MD5");
            } catch (NoSuchAlgorithmException unused) {
                throw new InternalError("MD5 not supported on this platform - Outdated?");
            }
        }
    };
    private static final FastThreadLocal<MessageDigest> SHA1 = new FastThreadLocal<MessageDigest>() { // from class: io.netty.handler.codec.http.websocketx.WebSocketUtil.2
        @Override // io.netty.util.concurrent.FastThreadLocal
        public MessageDigest initialValue() {
            try {
                return MessageDigest.getInstance("SHA1");
            } catch (NoSuchAlgorithmException unused) {
                throw new InternalError("SHA-1 not supported on this platform - Outdated?");
            }
        }
    };

    private WebSocketUtil() {
    }

    public static String base64(byte[] bArr) {
        ByteBuf byteBufEncode = Base64.encode(Unpooled.wrappedBuffer(bArr));
        String string = byteBufEncode.toString(CharsetUtil.UTF_8);
        byteBufEncode.release();
        return string;
    }

    private static byte[] digest(FastThreadLocal<MessageDigest> fastThreadLocal, byte[] bArr) {
        MessageDigest messageDigest = fastThreadLocal.get();
        messageDigest.reset();
        return messageDigest.digest(bArr);
    }

    public static byte[] md5(byte[] bArr) {
        return digest(MD5, bArr);
    }

    public static byte[] randomBytes(int i2) {
        byte[] bArr = new byte[i2];
        for (int i3 = 0; i3 < i2; i3++) {
            bArr[i3] = (byte) randomNumber(0, DnsRecord.CLASS_ANY);
        }
        return bArr;
    }

    public static int randomNumber(int i2, int i3) {
        return (int) ((Math.random() * ((double) i3)) + ((double) i2));
    }

    public static byte[] sha1(byte[] bArr) {
        return digest(SHA1, bArr);
    }
}