3
0
Mirror von https://github.com/GeyserMC/Geyser.git synchronisiert 2024-12-25 15:50:14 +01:00

Added RawSkins, Toppings and renamed the Floodgate plugin name

Dieser Commit ist enthalten in:
Tim203 2020-09-19 14:21:54 +02:00
Ursprung bb20b14e4c
Commit 7fbc401dfa
Es konnte kein GPG-Schlüssel zu dieser Signatur gefunden werden
GPG-Schlüssel-ID: 064EE9F5BF7C3EE8
16 geänderte Dateien mit 261 neuen und 104 gelöschten Zeilen

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@ -44,7 +44,7 @@ public class GeyserBungeeConfiguration extends GeyserJacksonConfiguration {
private Path floodgateKey;
public void loadFloodgate(GeyserBungeePlugin plugin, Configuration configuration) {
Plugin floodgate = plugin.getProxy().getPluginManager().getPlugin("floodgate-bungee");
Plugin floodgate = plugin.getProxy().getPluginManager().getPlugin("floodgate");
floodgateKey = FloodgateKeyLoader.getKey(plugin.getGeyserLogger(), this, Paths.get(plugin.getDataFolder().toString(), configuration.getString("floodgate-key-file"), "public-key.pem"), floodgate, floodgate != null ? floodgate.getDataFolder().toPath() : null);
}

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@ -94,7 +94,7 @@ public class GeyserBungeePlugin extends Plugin implements GeyserBootstrap {
this.geyserLogger = new GeyserBungeeLogger(getLogger(), geyserConfig.isDebugMode());
GeyserConfiguration.checkGeyserConfiguration(geyserConfig, geyserLogger);
if (geyserConfig.getRemote().getAuthType().equals("floodgate") && getProxy().getPluginManager().getPlugin("floodgate-bungee") == null) {
if (geyserConfig.getRemote().getAuthType().equals("floodgate") && getProxy().getPluginManager().getPlugin("floodgate") == null) {
geyserLogger.severe(LanguageUtils.getLocaleStringLog("geyser.bootstrap.floodgate.not_installed") + " " + LanguageUtils.getLocaleStringLog("geyser.bootstrap.floodgate.disabling"));
return;
}

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@ -48,7 +48,7 @@ public class GeyserSpigotConfiguration extends GeyserJacksonConfiguration {
private Path floodgateKey;
public void loadFloodgate(GeyserSpigotPlugin plugin) {
Plugin floodgate = Bukkit.getPluginManager().getPlugin("floodgate-spigot");
Plugin floodgate = Bukkit.getPluginManager().getPlugin("floodgate");
floodgateKey = FloodgateKeyLoader.getKey(plugin.getGeyserLogger(), this, Paths.get(plugin.getDataFolder().toString(), plugin.getConfig().getString("floodgate-key-file", "public-key.pem")), floodgate, floodgate != null ? floodgate.getDataFolder().toPath() : null);
}

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@ -93,7 +93,7 @@ public class GeyserSpigotPlugin extends JavaPlugin implements GeyserBootstrap {
this.geyserLogger = new GeyserSpigotLogger(getLogger(), geyserConfig.isDebugMode());
GeyserConfiguration.checkGeyserConfiguration(geyserConfig, geyserLogger);
if (geyserConfig.getRemote().getAuthType().equals("floodgate") && Bukkit.getPluginManager().getPlugin("floodgate-spigot") == null) {
if (geyserConfig.getRemote().getAuthType().equals("floodgate") && Bukkit.getPluginManager().getPlugin("floodgate") == null) {
geyserLogger.severe(LanguageUtils.getLocaleStringLog("geyser.bootstrap.floodgate.not_installed") + " " + LanguageUtils.getLocaleStringLog("geyser.bootstrap.floodgate.disabling"));
this.getPluginLoader().disablePlugin(this);
return;

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@ -26,7 +26,7 @@
package org.geysermc.floodgate.crypto;
import org.geysermc.floodgate.util.InvalidHeaderException;
import lombok.RequiredArgsConstructor;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
@ -35,12 +35,14 @@ import java.nio.ByteBuffer;
import java.security.Key;
import java.security.SecureRandom;
@RequiredArgsConstructor
public final class AesCipher implements FloodgateCipher {
private static final int IV_LENGTH = 12;
public static final int IV_LENGTH = 12;
private static final int TAG_BIT_LENGTH = 128;
private static final String CIPHER_NAME = "AES/GCM/NoPadding";
private final SecureRandom secureRandom = new SecureRandom();
private final Topping topping;
private SecretKey secretKey;
public void init(Key key) {
@ -62,32 +64,57 @@ public final class AesCipher implements FloodgateCipher {
cipher.init(Cipher.ENCRYPT_MODE, secretKey, spec);
byte[] cipherText = cipher.doFinal(data);
return ByteBuffer.allocate(iv.length + cipherText.length + HEADER_LENGTH)
.put(IDENTIFIER).put(VERSION) // header
if (topping != null) {
iv = topping.encode(iv);
cipherText = topping.encode(cipherText);
}
return ByteBuffer.allocate(iv.length + cipherText.length + HEADER_LENGTH + 1)
.put(IDENTIFIER) // header
.put(iv)
.put((byte) 0x21)
.put(cipherText)
.array();
}
public byte[] decrypt(byte[] cipherTextWithIv) throws Exception {
HeaderResult pair = checkHeader(cipherTextWithIv);
if (pair.getVersion() != VERSION) {
throw new InvalidHeaderException(
"Expected version " + VERSION + ", got " + pair.getVersion()
);
}
checkHeader(cipherTextWithIv);
Cipher cipher = Cipher.getInstance(CIPHER_NAME);
int bufferLength = cipherTextWithIv.length - HEADER_LENGTH;
ByteBuffer buffer = ByteBuffer.wrap(cipherTextWithIv, HEADER_LENGTH, bufferLength);
byte[] iv = new byte[IV_LENGTH];
int ivLength = IV_LENGTH;
if (topping != null) {
int mark = buffer.position();
// we need the first index, the second is for the optional RawSkin
boolean found = false;
while (buffer.hasRemaining() && !found) {
if (buffer.get() == 0x21) {
found = true;
}
}
ivLength = buffer.position() - mark - 1; // don't include the splitter itself
buffer.position(mark); // reset to the pre-while index
}
byte[] iv = new byte[ivLength];
buffer.get(iv);
buffer.position(buffer.position() + 1); // skip splitter
byte[] cipherText = new byte[buffer.remaining()];
buffer.get(cipherText);
if (topping != null) {
iv = topping.decode(iv);
cipherText = topping.decode(cipherText);
}
GCMParameterSpec spec = new GCMParameterSpec(TAG_BIT_LENGTH, iv);
cipher.init(Cipher.DECRYPT_MODE, secretKey, spec);
return cipher.doFinal(cipherText);

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@ -0,0 +1,40 @@
/*
* Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.floodgate.crypto;
import java.util.Base64;
public final class Base64Topping implements Topping {
@Override
public byte[] encode(byte[] data) {
return Base64.getEncoder().encode(data);
}
@Override
public byte[] decode(byte[] data) {
return Base64.getDecoder().decode(data);
}
}

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@ -28,7 +28,7 @@ package org.geysermc.floodgate.crypto;
import lombok.AllArgsConstructor;
import lombok.Data;
import org.geysermc.floodgate.util.InvalidHeaderException;
import org.geysermc.floodgate.util.InvalidFormatException;
import java.nio.charset.StandardCharsets;
import java.security.Key;
@ -38,9 +38,7 @@ import java.security.Key;
*/
public interface FloodgateCipher {
byte[] IDENTIFIER = "Floodgate".getBytes(StandardCharsets.UTF_8);
byte VERSION = 2;
int HEADER_LENGTH = IDENTIFIER.length + 1; // one byte for version
int HEADER_LENGTH = IDENTIFIER.length;
/**
* Initializes the instance by giving it the key it needs to encrypt or decrypt data
@ -110,19 +108,20 @@ public interface FloodgateCipher {
}
/**
* Checks if the header is valid and return a IntPair containing the header version
* and the index to start reading the actual encrypted data from.
* Checks if the header is valid.
* This method will throw an InvalidFormatException when the header is invalid.
*
* @param data the data to check
* @return IntPair. x = version number, y = the index to start reading from.
* @throws InvalidHeaderException when the header is invalid
* @throws InvalidFormatException when the header is invalid
*/
default HeaderResult checkHeader(byte[] data) throws InvalidHeaderException {
default void checkHeader(byte[] data) throws InvalidFormatException {
final int identifierLength = IDENTIFIER.length;
if (data.length <= HEADER_LENGTH) {
throw new InvalidHeaderException("Data length is smaller then header." +
"Needed " + HEADER_LENGTH + ", got " + data.length);
throw new InvalidFormatException("Data length is smaller then header." +
"Needed " + HEADER_LENGTH + ", got " + data.length,
true
);
}
for (int i = 0; i < identifierLength; i++) {
@ -132,15 +131,15 @@ public interface FloodgateCipher {
receivedIdentifier.append(b);
}
throw new InvalidHeaderException(String.format(
"Expected identifier %s, got %s",
new String(IDENTIFIER, StandardCharsets.UTF_8),
receivedIdentifier.toString()
));
throw new InvalidFormatException(
String.format("Expected identifier %s, got %s",
new String(IDENTIFIER, StandardCharsets.UTF_8),
receivedIdentifier.toString()
),
true
);
}
}
return new HeaderResult(data[identifierLength], HEADER_LENGTH);
}
static boolean hasHeader(String data) {

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@ -0,0 +1,31 @@
/*
* Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.floodgate.crypto;
public interface Topping {
byte[] encode(byte[] data);
byte[] decode(byte[] data);
}

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@ -50,25 +50,23 @@ public final class BedrockData {
private final LinkedPlayer linkedPlayer;
private final int dataLength;
private RawSkin skin;
public BedrockData(String version, String username, String xuid, int deviceOs,
String languageCode, int uiProfile, int inputMode, String ip,
LinkedPlayer linkedPlayer, RawSkin skin) {
LinkedPlayer linkedPlayer) {
this(version, username, xuid, deviceOs, languageCode,
inputMode, uiProfile, ip, linkedPlayer, EXPECTED_LENGTH, skin);
inputMode, uiProfile, ip, linkedPlayer, EXPECTED_LENGTH);
}
public BedrockData(String version, String username, String xuid, int deviceOs,
String languageCode, int uiProfile, int inputMode, String ip, RawSkin skin) {
this(version, username, xuid, deviceOs, languageCode, uiProfile, inputMode, ip, null, skin);
String languageCode, int uiProfile, int inputMode, String ip) {
this(version, username, xuid, deviceOs, languageCode, uiProfile, inputMode, ip, null);
}
public boolean hasPlayerLink() {
return linkedPlayer != null;
}
public static BedrockData fromString(String data, String skin) {
public static BedrockData fromString(String data) {
String[] split = data.split("\0");
if (split.length != EXPECTED_LENGTH) {
return emptyData(split.length);
@ -79,14 +77,10 @@ public final class BedrockData {
return new BedrockData(
split[0], split[1], split[2], Integer.parseInt(split[3]), split[4],
Integer.parseInt(split[5]), Integer.parseInt(split[6]), split[7],
linkedPlayer, split.length, RawSkin.parse(skin)
linkedPlayer, split.length
);
}
public static BedrockData fromRawData(byte[] data, String skin) {
return fromString(new String(data), skin);
}
@Override
public String toString() {
// The format is the same as the order of the fields in this class
@ -96,6 +90,6 @@ public final class BedrockData {
}
private static BedrockData emptyData(int dataLength) {
return new BedrockData(null, null, null, -1, null, -1, -1, null, null, dataLength, null);
return new BedrockData(null, null, null, -1, null, -1, -1, null, null, dataLength);
}
}

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@ -26,16 +26,26 @@
package org.geysermc.floodgate.util;
public class InvalidHeaderException extends Exception {
public InvalidHeaderException() {
import lombok.Getter;
@Getter
public class InvalidFormatException extends Exception {
private boolean header = false;
public InvalidFormatException() {
super();
}
public InvalidHeaderException(String message) {
public InvalidFormatException(String message) {
super(message);
}
public InvalidHeaderException(String message, Throwable cause) {
public InvalidFormatException(String message, boolean header) {
super(message);
this.header = header;
}
public InvalidFormatException(String message, Throwable cause) {
super(message, cause);
}
}

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@ -26,31 +26,62 @@
package org.geysermc.floodgate.util;
import lombok.AllArgsConstructor;
import lombok.ToString;
import java.nio.charset.StandardCharsets;
import java.nio.ByteBuffer;
import java.util.Base64;
@AllArgsConstructor
public class RawSkin {
@ToString
public final class RawSkin {
public int width;
public int height;
public byte[] data;
private RawSkin() {}
public static RawSkin parse(String data) {
if (data == null) return null;
String[] split = data.split(":");
if (split.length != 3) return null;
public static RawSkin decode(byte[] data) throws InvalidFormatException {
if (data == null) {
return null;
}
int maxEncodedLength = 4 * (((64 * 64 * 4 + 8) + 2) / 3);
// if the RawSkin is longer then the max Java Edition skin length
if (data.length > maxEncodedLength) {
throw new InvalidFormatException(
"Encoded data cannot be longer then " + maxEncodedLength + " bytes!"
);
}
// if the encoded data doesn't even contain the width and height (8 bytes, 2 ints)
if (data.length < 4 * ((8 + 2) / 3)) {
throw new InvalidFormatException("Encoded data must be at least 12 bytes long!");
}
data = Base64.getDecoder().decode(data);
ByteBuffer buffer = ByteBuffer.wrap(data);
RawSkin skin = new RawSkin();
skin.width = Integer.parseInt(split[0]);
skin.height = Integer.parseInt(split[1]);
skin.data = split[2].getBytes(StandardCharsets.UTF_8);
skin.width = buffer.getInt();
skin.height = buffer.getInt();
if (buffer.remaining() != (skin.width * skin.height * 4)) {
throw new InvalidFormatException(String.format(
"Expected skin length to be %s, got %s",
(skin.width * skin.height * 4), buffer.remaining()
));
}
skin.data = new byte[buffer.remaining()];
buffer.get(skin.data);
return skin;
}
@Override
public String toString() {
return Integer.toString(width) + ':' + height + ':' + new String(data);
public byte[] encode() {
// 2 x int = 8 bytes
ByteBuffer buffer = ByteBuffer.allocate(8 + data.length);
buffer.putInt(width);
buffer.putInt(height);
buffer.put(data);
return Base64.getEncoder().encode(buffer.array());
}
}

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@ -57,6 +57,7 @@ import org.geysermc.connector.utils.LanguageUtils;
import org.geysermc.connector.utils.LocaleUtils;
import org.geysermc.floodgate.crypto.AesCipher;
import org.geysermc.floodgate.crypto.AesKeyProducer;
import org.geysermc.floodgate.crypto.Base64Topping;
import org.geysermc.floodgate.crypto.FloodgateCipher;
import javax.naming.directory.Attribute;
@ -180,7 +181,7 @@ public class GeyserConnector {
if (authType == AuthType.FLOODGATE) {
try {
Key key = new AesKeyProducer().produceFrom(config.getFloodgateKeyFile());
cipher = new AesCipher();
cipher = new AesCipher(new Base64Topping());
cipher.init(key);
logger.info(LanguageUtils.getLocaleStringLog("geyser.auth.floodgate.loaded_key"));
} catch (Exception exception) {

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@ -77,15 +77,8 @@ import org.geysermc.floodgate.crypto.FloodgateCipher;
import org.geysermc.floodgate.util.BedrockData;
import java.net.InetSocketAddress;
import java.security.NoSuchAlgorithmException;
import java.security.PublicKey;
import java.security.spec.InvalidKeySpecException;
import java.util.*;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;
import java.util.UUID;
import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;
@Getter
@ -359,8 +352,7 @@ public class GeyserSession implements CommandSender {
clientData.getLanguageCode(),
clientData.getUiProfile().ordinal(),
clientData.getCurrentInputMode().ordinal(),
upstream.getSession().getAddress().getAddress().getHostAddress(),
clientData.getImage("Skin")
upstream.getSession().getAddress().getAddress().getHostAddress()
).toString());
} catch (Exception e) {
connector.getLogger().error(LanguageUtils.getLocaleStringLog("geyser.auth.floodgate.encrypt_fail"), e);
@ -368,15 +360,18 @@ public class GeyserSession implements CommandSender {
return;
}
String encrypted = new String(
Base64.getEncoder().encode(encryptedData),
StandardCharsets.UTF_8
);
byte[] rawSkin = clientData.getAndTransformImage("Skin").encode();
byte[] finalData = new byte[encryptedData.length + rawSkin.length + 1];
System.arraycopy(encryptedData, 0, finalData, 0, encryptedData.length);
finalData[encryptedData.length] = 0x21; // splitter
System.arraycopy(rawSkin, 0, finalData, encryptedData.length + 1, rawSkin.length);
String finalDataString = new String(finalData, StandardCharsets.UTF_8);
HandshakePacket handshakePacket = event.getPacket();
event.setPacket(new HandshakePacket(
handshakePacket.getProtocolVersion(),
handshakePacket.getHostname() + '\0' + encrypted,
handshakePacket.getHostname() + '\0' + finalDataString,
handshakePacket.getPort(),
handshakePacket.getIntent()
));
@ -626,7 +621,7 @@ public class GeyserSession implements CommandSender {
/**
* Send a packet immediately to the player.
*
*
* @param packet the bedrock packet from the NukkitX protocol lib
*/
public void sendUpstreamPacketImmediately(BedrockPacket packet) {

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@ -28,13 +28,15 @@ package org.geysermc.connector.network.session.auth;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.JsonNode;
import lombok.Getter;
import net.minidev.json.JSONObject;
import org.geysermc.connector.utils.SkinProvider;
import org.geysermc.floodgate.util.DeviceOs;
import org.geysermc.floodgate.util.InputMode;
import org.geysermc.floodgate.util.RawSkin;
import org.geysermc.floodgate.util.UiProfile;
import java.awt.image.BufferedImage;
import java.util.Base64;
import java.util.UUID;
@ -42,7 +44,7 @@ import java.util.UUID;
@Getter
public final class BedrockClientData {
@JsonIgnore
private JSONObject jsonData;
private JsonNode jsonData;
@JsonProperty(value = "GameVersion")
private String gameVersion;
@ -112,31 +114,17 @@ public final class BedrockClientData {
@JsonProperty(value = "ThirdPartyNameOnly")
private boolean thirdPartyNameOnly;
public void setJsonData(JSONObject data) {
if (this.jsonData != null && data != null) {
public void setJsonData(JsonNode data) {
if (this.jsonData == null && data != null) {
this.jsonData = data;
}
}
/**
* Taken from https://github.com/NukkitX/Nukkit/blob/master/src/main/java/cn/nukkit/network/protocol/LoginPacket.java<br>
* Internally only used for Skins, but can be used for Capes too
*/
public RawSkin getImage(String name) {
if (jsonData == null || !jsonData.containsKey(name + "Data")) return null;
byte[] image = Base64.getDecoder().decode(jsonData.getAsString(name + "Data"));
if (jsonData.containsKey(name + "ImageWidth") && jsonData.containsKey(name + "ImageHeight")) {
return new RawSkin(
(int) jsonData.getAsNumber(name + "ImageWidth"),
(int) jsonData.get(name + "ImageHeight"),
image
);
}
return getLegacyImage(image);
}
private static RawSkin getLegacyImage(byte[] imageData) {
if (imageData == null) return null;
if (imageData == null) {
return null;
}
// width * height * 4 (rgba)
switch (imageData.length) {
case 8192:
@ -151,4 +139,44 @@ public final class BedrockClientData {
throw new IllegalArgumentException("Unknown legacy skin size");
}
}
/**
* Taken from https://github.com/NukkitX/Nukkit/blob/master/src/main/java/cn/nukkit/network/protocol/LoginPacket.java<br>
* Internally only used for Skins, but can be used for Capes too
*/
public RawSkin getImage(String name) {
System.out.println(jsonData.toString());
if (jsonData == null || !jsonData.has(name + "Data")) {
return null;
}
byte[] image = Base64.getDecoder().decode(jsonData.get(name + "Data").asText());
if (jsonData.has(name + "ImageWidth") && jsonData.has(name + "ImageHeight")) {
return new RawSkin(
jsonData.get(name + "ImageWidth").asInt(),
jsonData.get(name + "ImageHeight").asInt(),
image
);
}
return getLegacyImage(image);
}
public RawSkin getAndTransformImage(String name) {
RawSkin skin = getImage(name);
if (skin != null && (skin.width > 64 || skin.height > 64)) {
BufferedImage scaledImage = SkinProvider.imageDataToBufferedImage(skin.data, skin.width, skin.height);
int max = Math.max(skin.width, skin.height);
while (max > 64) {
max /= 2;
scaledImage = SkinProvider.scale(scaledImage);
}
byte[] skinData = SkinProvider.bufferedImageToImageData(scaledImage);
skin.width = scaledImage.getWidth();
skin.height = scaledImage.getHeight();
skin.data = skinData;
}
return skin;
}
}

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@ -131,8 +131,9 @@ public class LoginEncryptionUtils {
JWSObject clientJwt = JWSObject.parse(clientData);
EncryptionUtils.verifyJwt(clientJwt, identityPublicKey);
BedrockClientData data = JSON_MAPPER.convertValue(JSON_MAPPER.readTree(clientJwt.getPayload().toBytes()), BedrockClientData.class);
data.setJsonData(clientJwt.getPayload().toJSONObject());
JsonNode clientDataJson = JSON_MAPPER.readTree(clientJwt.getPayload().toBytes());
BedrockClientData data = JSON_MAPPER.convertValue(clientDataJson, BedrockClientData.class);
data.setJsonData(clientDataJson);
session.setClientData(data);
if (EncryptionUtils.canUseEncryption()) {

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@ -460,7 +460,7 @@ public class SkinProvider {
return null;
}
private static BufferedImage scale(BufferedImage bufferedImage) {
public static BufferedImage scale(BufferedImage bufferedImage) {
BufferedImage resized = new BufferedImage(bufferedImage.getWidth() / 2, bufferedImage.getHeight() / 2, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = resized.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);