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made world export/import use the EPK v2 format (faster)

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LAX1DUDE 2022-08-05 00:33:14 -07:00
parent 6fee025a62
commit 405a212c8b
11 changed files with 31740 additions and 31197 deletions
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31478
javascript/classes.js
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javascript/classes.js.map
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javascript/classes_server.js
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151
sp-server/src/main/java/net/lax1dude/eaglercraft/sp/EPK2Compiler.java Normal file
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@ -0,0 +1,151 @@
package net.lax1dude.eaglercraft.sp;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.jcraft.jzlib.CRC32;
public class EPK2Compiler {
private final ByteArrayOutputStream os;
private final CRC32 checkSum = new CRC32();
private int lengthIntegerOffset = 0;
private int totalFileCount = 0;
public EPK2Compiler(String name, String owner, String type) {
os = new ByteArrayOutputStream(0x200000);
try {
os.write(new byte[]{(byte)69,(byte)65,(byte)71,(byte)80,(byte)75,(byte)71,(byte)36,(byte)36}); // EAGPKG$$
os.write(new byte[]{(byte)6,(byte)118,(byte)101,(byte)114,(byte)50,(byte)46,(byte)48}); // 6 + ver2.0
Date d = new Date();
byte[] filename = (name + ".epk").getBytes(StandardCharsets.UTF_8);
os.write(filename.length);
os.write(filename);
byte[] comment = ("\n\n # Eagler EPK v2.0 (c) " + (new SimpleDateFormat("yyyy")).format(d) + " " +
owner + "\n # export: on " + (new SimpleDateFormat("MM/dd/yyyy")).format(d) + " at " +
(new SimpleDateFormat("hh:mm:ss aa")).format(d) + "\n\n # world name: " + name + "\n\n")
.getBytes(StandardCharsets.UTF_8);
os.write((comment.length >> 8) & 255);
os.write(comment.length & 255);
os.write(comment);
writeLong(d.getTime(), os);
lengthIntegerOffset = os.size();
os.write(new byte[]{(byte)255,(byte)255,(byte)255,(byte)255}); // this will be replaced with the file count
os.write('0'); // compression type: none
os.write(new byte[]{(byte)72,(byte)69,(byte)65,(byte)68}); // HEAD
os.write(new byte[]{(byte)9,(byte)102,(byte)105,(byte)108,(byte)101,(byte)45,(byte)116,(byte)121,
(byte)112,(byte)101}); // 9 + file-type
byte[] typeBytes = type.getBytes(StandardCharsets.UTF_8);
writeInt(typeBytes.length, os);
os.write(typeBytes); // write type
os.write('>');
++totalFileCount;
os.write(new byte[]{(byte)72,(byte)69,(byte)65,(byte)68}); // HEAD
os.write(new byte[]{(byte)10,(byte)119,(byte)111,(byte)114,(byte)108,(byte)100,(byte)45,(byte)110,
(byte)97,(byte)109,(byte)101}); // 10 + world-name
byte[] nameBytes = name.getBytes(StandardCharsets.UTF_8);
writeInt(nameBytes.length, os);
os.write(nameBytes); // write name
os.write('>');
++totalFileCount;
os.write(new byte[]{(byte)72,(byte)69,(byte)65,(byte)68}); // HEAD
os.write(new byte[]{(byte)11,(byte)119,(byte)111,(byte)114,(byte)108,(byte)100,(byte)45,(byte)111,
(byte)119,(byte)110,(byte)101,(byte)114}); // 11 + world-owner
byte[] ownerBytes = owner.getBytes(StandardCharsets.UTF_8);
writeInt(ownerBytes.length, os);
os.write(ownerBytes); // write owner
os.write('>');
++totalFileCount;
}catch(IOException ex) {
throw new RuntimeException("This happened somehow", ex);
}
}
public void append(String name, byte[] dat) {
try {
checkSum.reset();
checkSum.update(dat, 0, dat.length);
long sum = checkSum.getValue();
os.write(new byte[]{(byte)70,(byte)73,(byte)76,(byte)69}); // FILE
byte[] nameBytes = name.getBytes(StandardCharsets.UTF_8);
os.write(nameBytes.length);
os.write(nameBytes);
writeInt(dat.length + 5, os);
writeInt((int)sum, os);
os.write(dat);
os.write(':');
os.write('>');
++totalFileCount;
}catch(IOException ex) {
throw new RuntimeException("This happened somehow", ex);
}
}
public byte[] complete() {
try {
os.write(new byte[]{(byte)69,(byte)78,(byte)68,(byte)36}); // END$
os.write(new byte[]{(byte)58,(byte)58,(byte)58,(byte)89,(byte)69,(byte)69,(byte)58,(byte)62}); // :::YEE:>
byte[] ret = os.toByteArray();
ret[lengthIntegerOffset] = (byte)((totalFileCount >> 24) & 0xFF);
ret[lengthIntegerOffset + 1] = (byte)((totalFileCount >> 16) & 0xFF);
ret[lengthIntegerOffset + 2] = (byte)((totalFileCount >> 8) & 0xFF);
ret[lengthIntegerOffset + 3] = (byte)(totalFileCount & 0xFF);
return ret;
}catch(IOException ex) {
throw new RuntimeException("This happened somehow", ex);
}
}
public static void writeInt(int i, OutputStream os) throws IOException {
os.write((i >> 24) & 0xFF);
os.write((i >> 16) & 0xFF);
os.write((i >> 8) & 0xFF);
os.write(i & 0xFF);
}
public static void writeLong(long i, OutputStream os) throws IOException {
os.write((int)((i >> 56) & 0xFF));
os.write((int)((i >> 48) & 0xFF));
os.write((int)((i >> 40) & 0xFF));
os.write((int)((i >> 32) & 0xFF));
os.write((int)((i >> 24) & 0xFF));
os.write((int)((i >> 16) & 0xFF));
os.write((int)((i >> 8) & 0xFF));
os.write((int)(i & 0xFF));
}
}

57
sp-server/src/main/java/net/lax1dude/eaglercraft/sp/EPKCompiler.java
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@ -1,57 +0,0 @@
package net.lax1dude.eaglercraft.sp;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.nio.charset.Charset;
import com.jcraft.jzlib.Deflater;
import com.jcraft.jzlib.DeflaterOutputStream;
public class EPKCompiler {
private final ByteArrayOutputStream osb = new ByteArrayOutputStream();
private DataOutputStream os;
private Deflater d;
private final SHA1Digest dig = new SHA1Digest();
public EPKCompiler(String name) {
try {
os = new DataOutputStream(osb);
os.write("EAGPKG!!".getBytes(Charset.forName("UTF-8")));
os.writeUTF("\n\n # eaglercraft package file - " + name + "\n # eagler eagler eagler eagler eagler eagler eagler\n\n");
d = new Deflater(9);
os = new DataOutputStream(new DeflaterOutputStream(osb, d));
}catch(Throwable t) {
throw new RuntimeException("this happened somehow", t);
}
}
public void append(String name, byte[] dat) {
try {
os.writeUTF("<file>");
os.writeUTF(name);
byte[] v = dat;
dig.update(v, 0, v.length);
byte[] final_ = new byte[20];
dig.doFinal(final_, 0);
os.write(final_);
os.writeInt(v.length);
os.write(v);
os.writeUTF("</file>");
}catch(Throwable t) {
throw new RuntimeException("this happened somehow", t);
}
}
public byte[] complete() {
try {
os.writeUTF(" end");
os.flush();
os.close();
return osb.toByteArray();
}catch(Throwable t) {
throw new RuntimeException("this happened somehow", t);
}
}
}

174
sp-server/src/main/java/net/lax1dude/eaglercraft/sp/EPKDecompiler.java
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@ -3,38 +3,194 @@ package net.lax1dude.eaglercraft.sp;
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;
import java.nio.charset.Charset;
import java.io.InputStream;
import java.util.Arrays;
import com.jcraft.jzlib.CRC32;
import com.jcraft.jzlib.GZIPInputStream;
import com.jcraft.jzlib.InflaterInputStream;
public class EPKDecompiler {
public static class FileEntry {
public final String type;
public final String name;
public final byte[] data;
protected FileEntry(String name, byte[] data) {
protected FileEntry(String type, String name, byte[] data) {
this.type = type;
this.name = name;
this.data = data;
}
}
private final ByteArrayInputStream in2;
private ByteArrayInputStream in2;
private DataInputStream in;
private SHA1Digest dg = new SHA1Digest();
private InputStream zis;
private SHA1Digest dg;
private CRC32 crc32;
private int numFiles;
private boolean isFinished = false;
private boolean isOldFormat = false;
public EPKDecompiler(byte[] data) throws IOException {
in2 = new ByteArrayInputStream(data);
in = new DataInputStream(in2);
byte[] header = new byte[8];
in.read(header);
if(!"EAGPKG!!".equals(new String(header, Charset.forName("UTF-8")))) throw new IOException("invalid epk file");
in2.read(header);
if(Arrays.equals(header, new byte[]{(byte)69,(byte)65,(byte)71,(byte)80,(byte)75,(byte)71,(byte)36,(byte)36})) {
byte[] endCode = new byte[] { (byte)':', (byte)':', (byte)':', (byte)'Y',
(byte)'E', (byte)'E', (byte)':', (byte)'>' };
for(int i = 0; i < 8; ++i) {
if(data[data.length - 8 + i] != endCode[i]) {
throw new IOException("EPK file is missing EOF code (:::YEE:>)");
}
}
in2 = new ByteArrayInputStream(data, 8, data.length - 16);
initNew();
}else if(Arrays.equals(header, new byte[]{(byte)69,(byte)65,(byte)71,(byte)80,(byte)75,(byte)71,(byte)33,(byte)33})) {
initOld();
}
}
public boolean isOld() {
return isOldFormat;
}
public FileEntry readFile() throws IOException {
if(!isOldFormat) {
return readFileNew();
}else {
return readFileOld();
}
}
private void initNew() throws IOException {
InputStream is = in2;
String vers = readASCII(is);
if(!vers.startsWith("ver2.")) {
throw new IOException("Unknown or invalid EPK version: " + vers);
}
is.skip(is.read()); // skip filename
is.skip(loadShort(is)); // skip comment
is.skip(8); // skip millis date
numFiles = loadInt(is);
char compressionType = (char)is.read();
switch(compressionType) {
case 'G':
zis = new GZIPInputStream(is);
break;
case 'Z':
zis = new InflaterInputStream(is);
break;
case '0':
zis = is;
break;
default:
throw new IOException("Invalid or unsupported EPK compression: " + compressionType);
}
crc32 = new CRC32();
}
private FileEntry readFileNew() throws IOException {
if(isFinished) {
return null;
}
byte[] typeBytes = new byte[4];
zis.read(typeBytes);
String type = readASCII(typeBytes);
if(numFiles == 0) {
if(!"END$".equals(type)) {
throw new IOException("EPK file is missing END code (END$)");
}
isFinished = true;
return null;
}else {
if("END$".equals(type)) {
throw new IOException("Unexpected END when there are still " + numFiles + " files remaining");
}else {
String name = readASCII(zis);
int len = loadInt(zis);
byte[] data;
if("FILE".equals(type)) {
if(len < 5) {
throw new IOException("File '" + name + "' is incomplete (no crc)");
}
int loadedCrc = loadInt(zis);
data = new byte[len - 5];
zis.read(data);
crc32.reset();
crc32.update(data, 0, data.length);
if((int)crc32.getValue() != loadedCrc) {
throw new IOException("File '" + name + "' has an invalid checksum");
}
if(zis.read() != ':') {
throw new IOException("File '" + name + "' is incomplete");
}
}else {
data = new byte[len];
zis.read(data);
}
if(zis.read() != '>') {
throw new IOException("Object '" + name + "' is incomplete");
}
--numFiles;
return new FileEntry(type, name, data);
}
}
}
private static final int loadShort(InputStream is) throws IOException {
return (is.read() << 8) | is.read();
}
private static final int loadInt(InputStream is) throws IOException {
return (is.read() << 24) | (is.read() << 16) | (is.read() << 8) | is.read();
}
public static final String readASCII(byte[] bytesIn) throws IOException {
char[] charIn = new char[bytesIn.length];
for(int i = 0; i < bytesIn.length; ++i) {
charIn[i] = (char)((int)bytesIn[i] & 0xFF);
}
return new String(charIn);
}
private static final String readASCII(InputStream bytesIn) throws IOException {
int len = bytesIn.read();
char[] charIn = new char[len];
for(int i = 0; i < len; ++i) {
charIn[i] = (char)(bytesIn.read() & 0xFF);
}
return new String(charIn);
}
private void initOld() throws IOException {
isOldFormat = true;
dg = new SHA1Digest();
in = new DataInputStream(in2);
in.readUTF();
in = new DataInputStream(new InflaterInputStream(in2));
}
public FileEntry readFile() throws IOException {
private FileEntry readFileOld() throws IOException {
if(isFinished) {
return null;
}
@ -55,7 +211,7 @@ public class EPKDecompiler {
dg.update(file, 0, len); dg.doFinal(digest2, 0);
if(!Arrays.equals(digest, digest2)) throw new IOException("invalid file hash for "+path);
if(!"</file>".equals(in.readUTF())) throw new IOException("invalid epk file");
return new FileEntry(path, file);
return new FileEntry("FILE", path, file);
}
}

33
sp-server/src/main/java/net/lax1dude/eaglercraft/sp/IntegratedServer.java
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@ -266,12 +266,20 @@ public class IntegratedServer {
break;
case IPCPacket05RequestData.ID: {
IPCPacket05RequestData pkt = (IPCPacket05RequestData)packet;
if(pkt.request == IPCPacket05RequestData.REQUEST_LEVEL_EAG) {
if(pkt.request == IPCPacket05RequestData.REQUEST_LEVEL_EAG) {String realWorldName = pkt.worldName;
String worldOwner = "UNKNOWN";
String splitter = new String(new char[] { (char)253, (char)233, (char)233 });
if(realWorldName.contains(splitter)) {
int i = realWorldName.lastIndexOf(splitter);
worldOwner = realWorldName.substring(i + 3);
realWorldName = realWorldName.substring(0, i);
}
try {
final int[] bytesWritten = new int[1];
final int[] lastUpdate = new int[1];
String pfx = "worlds/" + pkt.worldName + "/";
EPKCompiler c = new EPKCompiler("contains backup of world '" + pkt.worldName + "'");
String pfx = "worlds/" + realWorldName + "/";
EPK2Compiler c = new EPK2Compiler(realWorldName, worldOwner, "epk/world152");
SYS.VFS.iterateFiles(pfx, false, (i) -> {
byte[] b = i.getAllBytes();
c.append(i.path.substring(pfx.length()), b);
@ -283,7 +291,7 @@ public class IntegratedServer {
});
sendIPCPacket(new IPCPacket09RequestResponse(c.complete()));
} catch (Throwable t) {
throwExceptionToClient("Failed to export world '" + pkt.worldName + "' as EPK", t);
throwExceptionToClient("Failed to export world '" + realWorldName + "' as EPK", t);
sendTaskFailed();
}
}else if(pkt.request == IPCPacket05RequestData.REQUEST_LEVEL_MCA) {
@ -401,15 +409,25 @@ public class IntegratedServer {
IPCPacket07ImportWorld pkt = (IPCPacket07ImportWorld)packet;
if(isServerStopped()) {
if(pkt.worldFormat == IPCPacket07ImportWorld.WORLD_FORMAT_EAG) {
try {
String folder = VFSSaveHandler.worldNameToFolderName(pkt.worldName);
try {
VFile dir = new VFile("worlds", folder);
EPKDecompiler dc = new EPKDecompiler(pkt.worldData);
EPKDecompiler.FileEntry f = null;
int lastProgUpdate = 0;
int prog = 0;
boolean hasReadType = dc.isOld();
while((f = dc.readFile()) != null) {
byte[] b = f.data;
if(!hasReadType) {
if(f.type.equals("HEAD") && f.name.equals("file-type") && EPKDecompiler.readASCII(f.data).equals("epk/world152")) {
hasReadType = true;
continue;
}else {
throw new IOException("file does not contain a singleplayer 1.5.2 world!");
}
}
if(f.type.equals("FILE")) {
if(f.name.equals("level.dat")) {
NBTTagCompound worldDatNBT = CompressedStreamTools.decompress(b);
worldDatNBT.getCompoundTag("Data").setString("LevelName", pkt.worldName);
@ -424,6 +442,7 @@ public class IntegratedServer {
updateStatusString("selectWorld.progress.importing." + pkt.worldFormat, prog);
}
}
}
String[] worldsTxt = SYS.VFS.getFile("worlds.txt").getAllLines();
if(worldsTxt == null || worldsTxt.length <= 0) {
worldsTxt = new String[] { folder };
@ -436,12 +455,13 @@ public class IntegratedServer {
SYS.VFS.getFile("worlds.txt").setAllChars(String.join("\n", worldsTxt));
sendIPCPacket(new IPCPacketFFProcessKeepAlive(IPCPacket07ImportWorld.ID));
}catch(Throwable t) {
SYS.VFS.deleteFiles("worlds/" + folder + "/");
throwExceptionToClient("Failed to import world '" + pkt.worldName + "' as EPK", t);
sendTaskFailed();
}
}else if(pkt.worldFormat == IPCPacket07ImportWorld.WORLD_FORMAT_MCA) {
try {
String folder = VFSSaveHandler.worldNameToFolderName(pkt.worldName);
try {
VFile dir = new VFile("worlds", folder);
ZipInputStream folderNames = new ZipInputStream(new ByteArrayInputStream(pkt.worldData));
ZipEntry folderNameFile = null;
@ -504,6 +524,7 @@ public class IntegratedServer {
SYS.VFS.getFile("worlds.txt").setAllChars(String.join("\n", worldsTxt));
sendIPCPacket(new IPCPacketFFProcessKeepAlive(IPCPacket07ImportWorld.ID));
}catch(Throwable t) {
SYS.VFS.deleteFiles("worlds/" + folder + "/");
throwExceptionToClient("Failed to import world '" + pkt.worldName + "' as MCA", t);
sendTaskFailed();
}

2
src/main/java/net/lax1dude/eaglercraft/AssetRepository.java
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@ -108,7 +108,7 @@ public class AssetRepository {
blockType = loadInt(zis);
if(blockType == blockEnd) {
throw new IOException("Unexpected EOF when there are still " + (numFiles - i) + " files remaining");
throw new IOException("Unexpected END when there are still " + (numFiles - i) + " files remaining");
}
String name = readASCII(zis);

3
src/main/java/net/lax1dude/eaglercraft/IntegratedServer.java
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@ -231,6 +231,9 @@ public class IntegratedServer {
public static void exportWorld(String name, int format) {
ensureReady();
statusState = IntegratedState.WORLD_EXPORTING;
if(format == IPCPacket05RequestData.REQUEST_LEVEL_EAG) {
name = name + (new String(new char[] { (char)253, (char)233, (char)233 })) + EaglerProfile.username;
}
sendIPCPacket(new IPCPacket05RequestData(name, (byte)format));
}

2
src/main/java/net/minecraft/client/Minecraft.java
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@ -1478,7 +1478,7 @@ public class Minecraft implements Runnable {
}
if(messageOnLoginCounter == 150 && isSingleplayerOrLAN()) {
displayEaglercraftText(EnumChatFormatting.AQUA + "Especially in new worlds, if no chunks show give the game up to 120 seconds before \"giving up\" on a new world");
displayEaglercraftText(EnumChatFormatting.AQUA + "Especially in new worlds, if no chunks show give the game up to 5 straight minutes before \"giving up\" on a new world");
}
}