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This commit is contained in:
KingRainbow44
2023-04-18 17:17:55 -04:00
parent 75f163f704
commit ee298235c2
44 changed files with 598 additions and 424 deletions
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29
src/main/java/emu/grasscutter/utils/Crypto.java
View File

@@ -1,8 +1,8 @@
package emu.grasscutter.utils;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.server.http.objects.QueryCurRegionRspJson;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.nio.file.Path;
import java.security.KeyFactory;
import java.security.PrivateKey;
@@ -12,11 +12,9 @@ import java.security.Signature;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import java.util.Arrays;
import java.util.Map;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Pattern;
import emu.grasscutter.Grasscutter;
import javax.crypto.Cipher;
public final class Crypto {
@@ -42,8 +40,10 @@ public final class Crypto {
ENCRYPT_SEED_BUFFER = FileUtils.readResource("/keys/secretKeyBuffer.bin");
try {
CUR_SIGNING_KEY = KeyFactory.getInstance("RSA")
.generatePrivate(new PKCS8EncodedKeySpec(FileUtils.readResource("/keys/SigningKey.der")));
CUR_SIGNING_KEY =
KeyFactory.getInstance("RSA")
.generatePrivate(
new PKCS8EncodedKeySpec(FileUtils.readResource("/keys/SigningKey.der")));
Pattern pattern = Pattern.compile("([0-9]*)_Pub\\.der");
for (Path path : FileUtils.getPathsFromResource("/keys/game_keys")) {
@@ -52,8 +52,9 @@ public final class Crypto {
var m = pattern.matcher(path.getFileName().toString());
if (m.matches()) {
var key = KeyFactory.getInstance("RSA")
.generatePublic(new X509EncodedKeySpec(FileUtils.read(path)));
var key =
KeyFactory.getInstance("RSA")
.generatePublic(new X509EncodedKeySpec(FileUtils.read(path)));
EncryptionKeys.put(Integer.valueOf(m.group(1)), key);
}
@@ -80,7 +81,8 @@ public final class Crypto {
return bytes;
}
public static QueryCurRegionRspJson encryptAndSignRegionData(byte[] regionInfo, String key_id) throws Exception {
public static QueryCurRegionRspJson encryptAndSignRegionData(byte[] regionInfo, String key_id)
throws Exception {
if (key_id == null) {
throw new Exception("Key ID was not set");
}
@@ -88,17 +90,18 @@ public final class Crypto {
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.ENCRYPT_MODE, EncryptionKeys.get(Integer.valueOf(key_id)));
//Encrypt regionInfo in chunks
// Encrypt regionInfo in chunks
ByteArrayOutputStream encryptedRegionInfoStream = new ByteArrayOutputStream();
//Thank you so much GH Copilot
// Thank you so much GH Copilot
int chunkSize = 256 - 11;
int regionInfoLength = regionInfo.length;
int numChunks = (int) Math.ceil(regionInfoLength / (double) chunkSize);
for (int i = 0; i < numChunks; i++) {
byte[] chunk = Arrays.copyOfRange(regionInfo, i * chunkSize,
Math.min((i + 1) * chunkSize, regionInfoLength));
byte[] chunk =
Arrays.copyOfRange(
regionInfo, i * chunkSize, Math.min((i + 1) * chunkSize, regionInfoLength));
byte[] encryptedChunk = cipher.doFinal(chunk);
encryptedRegionInfoStream.write(encryptedChunk);
}

9
src/main/java/emu/grasscutter/utils/Language.java
View File

@@ -1,8 +1,8 @@
package emu.grasscutter.utils;
import static emu.grasscutter.config.Configuration.FALLBACK_LANGUAGE;
import static emu.grasscutter.utils.FileUtils.getResourcePath;
import static emu.grasscutter.utils.FileUtils.getCachePath;
import static emu.grasscutter.utils.FileUtils.getResourcePath;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
@@ -19,7 +19,6 @@ import it.unimi.dsi.fastutil.objects.Object2IntMap;
import it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.nio.file.FileAlreadyExistsException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
@@ -290,8 +289,10 @@ public final class Language {
private static void saveTextMapsCache(Int2ObjectMap<TextStrings> input) throws IOException {
Files.createDirectories(TEXTMAP_CACHE_PATH.getParent());
try (var file = new ObjectOutputStream(new BufferedOutputStream(
Files.newOutputStream(TEXTMAP_CACHE_PATH, StandardOpenOption.CREATE), 0x100000))) {
try (var file =
new ObjectOutputStream(
new BufferedOutputStream(
Files.newOutputStream(TEXTMAP_CACHE_PATH, StandardOpenOption.CREATE), 0x100000))) {
file.writeInt(TEXTMAP_CACHE_VERSION);
file.writeObject(input);
}