Fix large packets on LAN connections causing End of Stream (RIP).

.gitignore

@@ -7,7 +7,6 @@ eaglercraftbungee/.idea
 eaglercraftbungee/bin
 eaglercraftbungee/rundir
 eaglercraftbungee/test
-eaglercraftbungee/minecrafthtml5bungee.iml
 eaglercraftbungee/src/main/java/META-INF
 eaglercraftbungee/out
 epkcompiler/bin
@@ -26,11 +25,10 @@ sp-server/bin
 stable-download/_repl*
 lwjgl-rundir/_eagstorage*
 *.bak
-sp-relay/sp-relay.iml
 sp-relay/out
 sp-relay/test
 sp-relay/.idea
 sp-relay/src/main/java/META-INF
-zip-generator/zip-generator.iml
 zip-generator/out
 zip-generator/src/main/java/META-INF
+*.iml

eaglercraft-sp.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module version="4">
-  <component name="EclipseModuleManager">
-    <conelement value="org.eclipse.buildship.core.gradleclasspathcontainer" />
-    <src_description expected_position="0">
-      <src_folder value="file://$MODULE_DIR$/src/main/java" expected_position="0" />
-      <src_folder value="file://$MODULE_DIR$/src/teavm/java" expected_position="1" />
-      <src_folder value="file://$MODULE_DIR$/sp-server/src/ipc/java" expected_position="2" />
-    </src_description>
-  </component>
-</module>

settings.gradle

@@ -7,4 +7,4 @@
  * in the user manual at https://docs.gradle.org/6.0/userguide/multi_project_builds.html
  */
 
-rootProject.name = 'eaglercraft-sp'
+rootProject.name = 'eaglercraft'

src/main/java/net/lax1dude/eaglercraft/ConfigConstants.java

@@ -6,7 +6,7 @@ public class ConfigConstants {
 	
 	public static boolean profanity = false;
 
-	public static final String version = "22w34a";
+	public static final String version = "22w34b";
 	public static final String mainMenuString = "eaglercraft " + version;
 	
 	public static final String forkMe = "https://github.com/lax1dude/eaglercraft";

src/main/java/net/lax1dude/eaglercraft/LANClientNetworkManager.java

@@ -244,6 +244,8 @@ public class LANClientNetworkManager implements INetworkManager {
 		// no
 	}
 
+	private byte[] fragmentedPacket = new byte[0];
+
 	@Override
 	public void processReadPackets() {
 		
@@ -260,7 +262,25 @@ public class LANClientNetworkManager implements INetworkManager {
 		if(this.theNetHandler != null) {
 			byte[] data;
 			while((data = EaglerAdapter.clientLANReadPacket()) != null) {
-				ByteArrayInputStream bai = new ByteArrayInputStream(data);
+				byte[] fullData;
+
+				if (data[0] == 0) {
+					fullData = new byte[fragmentedPacket.length + data.length - 1];
+					System.arraycopy(fragmentedPacket, 0, fullData, 0, fragmentedPacket.length);
+					System.arraycopy(data, 1, fullData, fragmentedPacket.length, data.length - 1);
+					fragmentedPacket = new byte[0];
+				} else if (data[0] == 1) {
+					fullData = new byte[fragmentedPacket.length + data.length - 1];
+					System.arraycopy(fragmentedPacket, 0, fullData, 0, fragmentedPacket.length);
+					System.arraycopy(data, 1, fullData, fragmentedPacket.length, data.length - 1);
+					fragmentedPacket = fullData;
+					continue;
+				} else {
+					continue;
+				}
+
+				ByteArrayInputStream bai = new ByteArrayInputStream(fullData);
+
 				int pktId = bai.read();
 				
 				if(pktId == -1) {
@@ -274,7 +294,7 @@ public class LANClientNetworkManager implements INetworkManager {
 					System.err.println("Recieved invalid '" + pktId + "' packet");
 					continue;
 				}
-				
+
 				try {
 					pkt.readPacketData(new DataInputStream(bai));
 					pkt.processPacket(theNetHandler);

src/main/java/net/lax1dude/eaglercraft/LANServerList.java

@@ -23,7 +23,7 @@ public class LANServerList {
 	public void update() {
 		long millis = System.currentTimeMillis();
 		if(millis - lastRefresh > 10000l) {
-			if(++refreshCounter < 25) {
+			if(++refreshCounter < 10) {
 				refresh();
 			}else {
 				lastRefresh = millis;

src/teavm/java/net/lax1dude/eaglercraft/adapter/EaglerAdapterImpl2.java

@@ -3919,10 +3919,26 @@ public class EaglerAdapterImpl2 {
 		}
 	}
 
+	private static final int fragmentSize = 16384;
+
 	public static final void serverLANWritePacket(String peer, byte[] data) {
-		ArrayBuffer arr = ArrayBuffer.create(data.length);
-		Uint8Array.create(arr).set(data);
-		rtcLANServer.sendPacketToRemoteClient(peer, arr);
+		if (data.length > fragmentSize) {
+			for (int i = 0; i < data.length; i += fragmentSize) {
+				byte[] fragData = new byte[((i + fragmentSize > data.length) ? (data.length % fragmentSize) : fragmentSize) + 1];
+				System.arraycopy(data, i, fragData, 1, fragData.length - 1);
+				fragData[0] = (i + fragmentSize < data.length) ? (byte) 1 : (byte) 0;
+				ArrayBuffer arr = ArrayBuffer.create(fragData.length);
+				Uint8Array.create(arr).set(fragData);
+				rtcLANServer.sendPacketToRemoteClient(peer, arr);
+			}
+		} else {
+			byte[] sendData = new byte[data.length + 1];
+			sendData[0] = 0;
+			System.arraycopy(data, 0, sendData, 1, data.length);
+			ArrayBuffer arr = ArrayBuffer.create(sendData.length);
+			Uint8Array.create(arr).set(sendData);
+			rtcLANServer.sendPacketToRemoteClient(peer, arr);
+		}
 	}
 	
 	public static final void serverLANCreatePeer(String peer) {