mirror of
https://github.com/Pinball3D/Rabbit-R1.git
synced 2024-12-27 01:22:33 -06:00
250 lines
8.9 KiB
Java
250 lines
8.9 KiB
Java
package com.google.android.exoplayer2.util;
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import com.google.android.exoplayer2.upstream.Loader;
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import com.google.common.base.Ascii;
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import java.io.IOException;
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import java.net.DatagramPacket;
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import java.net.DatagramSocket;
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import java.net.InetAddress;
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import java.util.Arrays;
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import java.util.ConcurrentModificationException;
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/* loaded from: classes2.dex */
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public final class SntpClient {
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public static final String DEFAULT_NTP_HOST = "time.android.com";
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private static final int NTP_LEAP_NOSYNC = 3;
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private static final int NTP_MODE_BROADCAST = 5;
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private static final int NTP_MODE_CLIENT = 3;
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private static final int NTP_MODE_SERVER = 4;
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private static final int NTP_PACKET_SIZE = 48;
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private static final int NTP_PORT = 123;
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private static final int NTP_STRATUM_DEATH = 0;
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private static final int NTP_STRATUM_MAX = 15;
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private static final int NTP_VERSION = 3;
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private static final long OFFSET_1900_TO_1970 = 2208988800L;
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private static final int ORIGINATE_TIME_OFFSET = 24;
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private static final int RECEIVE_TIME_OFFSET = 32;
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private static final int TIMEOUT_MS = 10000;
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private static final int TRANSMIT_TIME_OFFSET = 40;
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private static long elapsedRealtimeOffsetMs = 0;
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private static boolean isInitialized = false;
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private static String ntpHost = "time.android.com";
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private static final Object loaderLock = new Object();
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private static final Object valueLock = new Object();
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/* loaded from: classes2.dex */
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public interface InitializationCallback {
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void onInitializationFailed(IOException iOException);
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void onInitialized();
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}
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static /* synthetic */ long access$400() throws IOException {
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return loadNtpTimeOffsetMs();
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}
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private SntpClient() {
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}
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public static String getNtpHost() {
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String str;
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synchronized (valueLock) {
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str = ntpHost;
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}
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return str;
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}
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public static void setNtpHost(String str) {
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synchronized (valueLock) {
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if (!ntpHost.equals(str)) {
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ntpHost = str;
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isInitialized = false;
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}
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}
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}
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public static boolean isInitialized() {
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boolean z;
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synchronized (valueLock) {
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z = isInitialized;
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}
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return z;
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}
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public static long getElapsedRealtimeOffsetMs() {
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long j;
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synchronized (valueLock) {
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j = isInitialized ? elapsedRealtimeOffsetMs : -9223372036854775807L;
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}
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return j;
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}
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public static void initialize(Loader loader, InitializationCallback initializationCallback) {
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if (isInitialized()) {
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if (initializationCallback != null) {
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initializationCallback.onInitialized();
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}
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} else {
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if (loader == null) {
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loader = new Loader("SntpClient");
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}
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loader.startLoading(new NtpTimeLoadable(), new NtpTimeCallback(initializationCallback), 1);
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}
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}
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private static long loadNtpTimeOffsetMs() throws IOException {
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InetAddress byName = InetAddress.getByName(getNtpHost());
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DatagramSocket datagramSocket = new DatagramSocket();
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try {
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datagramSocket.setSoTimeout(10000);
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byte[] bArr = new byte[48];
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DatagramPacket datagramPacket = new DatagramPacket(bArr, 48, byName, NTP_PORT);
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bArr[0] = Ascii.ESC;
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long currentTimeMillis = System.currentTimeMillis();
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long elapsedRealtime = android.os.SystemClock.elapsedRealtime();
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writeTimestamp(bArr, 40, currentTimeMillis);
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datagramSocket.send(datagramPacket);
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datagramSocket.receive(new DatagramPacket(bArr, 48));
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long elapsedRealtime2 = android.os.SystemClock.elapsedRealtime();
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long j = currentTimeMillis + (elapsedRealtime2 - elapsedRealtime);
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byte b = bArr[0];
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int i = bArr[1] & 255;
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long readTimestamp = readTimestamp(bArr, 24);
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long readTimestamp2 = readTimestamp(bArr, 32);
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long readTimestamp3 = readTimestamp(bArr, 40);
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checkValidServerReply((byte) ((b >> 6) & 3), (byte) (b & 7), i, readTimestamp3);
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long j2 = (j + (((readTimestamp2 - readTimestamp) + (readTimestamp3 - j)) / 2)) - elapsedRealtime2;
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datagramSocket.close();
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return j2;
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} catch (Throwable th) {
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try {
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datagramSocket.close();
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} catch (Throwable th2) {
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th.addSuppressed(th2);
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}
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throw th;
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}
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}
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private static long readTimestamp(byte[] bArr, int i) {
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long read32 = read32(bArr, i);
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long read322 = read32(bArr, i + 4);
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if (read32 == 0 && read322 == 0) {
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return 0L;
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}
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return ((read32 - OFFSET_1900_TO_1970) * 1000) + ((read322 * 1000) / 4294967296L);
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}
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private static void writeTimestamp(byte[] bArr, int i, long j) {
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if (j == 0) {
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Arrays.fill(bArr, i, i + 8, (byte) 0);
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return;
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}
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long j2 = j / 1000;
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long j3 = j - (j2 * 1000);
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long j4 = j2 + OFFSET_1900_TO_1970;
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bArr[i] = (byte) (j4 >> 24);
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bArr[i + 1] = (byte) (j4 >> 16);
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bArr[i + 2] = (byte) (j4 >> 8);
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bArr[i + 3] = (byte) j4;
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long j5 = (j3 * 4294967296L) / 1000;
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bArr[i + 4] = (byte) (j5 >> 24);
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bArr[i + 5] = (byte) (j5 >> 16);
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bArr[i + 6] = (byte) (j5 >> 8);
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bArr[i + 7] = (byte) (Math.random() * 255.0d);
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}
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private static long read32(byte[] bArr, int i) {
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int i2 = bArr[i];
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int i3 = bArr[i + 1];
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int i4 = bArr[i + 2];
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int i5 = bArr[i + 3];
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if ((i2 & 128) == 128) {
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i2 = (i2 & 127) + 128;
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}
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if ((i3 & 128) == 128) {
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i3 = (i3 & 127) + 128;
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}
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if ((i4 & 128) == 128) {
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i4 = (i4 & 127) + 128;
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}
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if ((i5 & 128) == 128) {
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i5 = (i5 & 127) + 128;
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}
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return (i2 << 24) + (i3 << 16) + (i4 << 8) + i5;
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}
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private static void checkValidServerReply(byte b, byte b2, int i, long j) throws IOException {
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if (b == 3) {
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throw new IOException("SNTP: Unsynchronized server");
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}
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if (b2 != 4 && b2 != 5) {
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throw new IOException("SNTP: Untrusted mode: " + ((int) b2));
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}
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if (i == 0 || i > 15) {
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throw new IOException("SNTP: Untrusted stratum: " + i);
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}
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if (j == 0) {
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throw new IOException("SNTP: Zero transmitTime");
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}
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}
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/* loaded from: classes2.dex */
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private static final class NtpTimeLoadable implements Loader.Loadable {
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@Override // com.google.android.exoplayer2.upstream.Loader.Loadable
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public void cancelLoad() {
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}
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private NtpTimeLoadable() {
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}
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@Override // com.google.android.exoplayer2.upstream.Loader.Loadable
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public void load() throws IOException {
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synchronized (SntpClient.loaderLock) {
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synchronized (SntpClient.valueLock) {
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if (SntpClient.isInitialized) {
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return;
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}
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long access$400 = SntpClient.access$400();
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synchronized (SntpClient.valueLock) {
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long unused = SntpClient.elapsedRealtimeOffsetMs = access$400;
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boolean unused2 = SntpClient.isInitialized = true;
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}
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}
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}
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}
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}
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/* loaded from: classes2.dex */
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private static final class NtpTimeCallback implements Loader.Callback<Loader.Loadable> {
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private final InitializationCallback callback;
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@Override // com.google.android.exoplayer2.upstream.Loader.Callback
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public void onLoadCanceled(Loader.Loadable loadable, long j, long j2, boolean z) {
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}
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public NtpTimeCallback(InitializationCallback initializationCallback) {
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this.callback = initializationCallback;
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}
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@Override // com.google.android.exoplayer2.upstream.Loader.Callback
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public void onLoadCompleted(Loader.Loadable loadable, long j, long j2) {
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if (this.callback != null) {
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if (!SntpClient.isInitialized()) {
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this.callback.onInitializationFailed(new IOException(new ConcurrentModificationException()));
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} else {
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this.callback.onInitialized();
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}
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}
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}
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@Override // com.google.android.exoplayer2.upstream.Loader.Callback
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public Loader.LoadErrorAction onLoadError(Loader.Loadable loadable, long j, long j2, IOException iOException, int i) {
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InitializationCallback initializationCallback = this.callback;
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if (initializationCallback != null) {
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initializationCallback.onInitializationFailed(iOException);
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}
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return Loader.DONT_RETRY;
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}
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}
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}
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