make it actually connect servers now :D

crazy right??!?!?!???!

.gitignore

@@ -2,3 +2,4 @@
 web
 target/*
 !target/ayungee-1.0-SNAPSHOT-jar-with-dependencies.jar
+test

README.md

@@ -2,6 +2,10 @@
 
 lightweight bungeecord alternative for eaglercraft servers running protocolsupport
 
-Thanks to LAX1DUDE for very small snippets of EaglerBungee used in this project (specifically for the server icon)
+Thanks to LAX1DUDE and md-5 for very small snippets of EaglerBungee used in this project (specifically for the server icon, skins, & entity remapping)
 
-**TODO: skins & capes**
+**TODO: ability for plugins to change a player's server & built-in auth system**
+
+
+
+**if you have questions about the license, please, reach out to me. i just put the license i put on most of my projects on this, but if you have a problem with it, let me know.

src/main/java/me/ayunami2000/ayungee/Client.java

@@ -16,10 +16,17 @@ public class Client {
 
     public String username;
 
+    public int server = 0;
+
+    public byte[] handshake = null;
+
+    public int clientEntityId;
+    public int serverEntityId;
+
     public void setSocket(Socket sock) throws IOException {
         socket = sock;
         socketOut = sock.getOutputStream();
-        socketIn = socket.getInputStream();
+        socketIn = sock.getInputStream();
     }
 
     public Client(String uname) {

src/main/java/me/ayunami2000/ayungee/EntityMap.java

@@ -0,0 +1,81 @@
+package me.ayunami2000.ayungee;
+
+// https://github.com/LAX1DUDE/eaglercraft/blob/a8d5c856de28ba2a263abc055d7b26d50dc2bf7e/eaglercraftbungee/src/main/java/net/md_5/bungee/EntityMap.java
+
+public class EntityMap {
+    public static final int[][] entityIds;
+
+    public static void rewrite(final byte[] packet, final int oldId, final int newId) {
+        final int packetId = packet[0] & 0xFF;
+        if (packetId == 29) {
+            for (int pos = 2; pos < (short) ((packet[1] << 8) + packet[2] & 0xff); pos += 4) {
+                final int readId = readInt(packet, pos);
+                if (readId == oldId) {
+                    setInt(packet, pos, newId);
+                } else if (readId == newId) {
+                    setInt(packet, pos, oldId);
+                }
+            }
+        } else {
+            final int[] idArray = EntityMap.entityIds[packetId];
+            if (idArray != null) {
+                for (final int pos2 : idArray) {
+                    final int readId2 = readInt(packet, pos2);
+                    if (readId2 == oldId) {
+                        setInt(packet, pos2, newId);
+                    } else if (readId2 == newId) {
+                        setInt(packet, pos2, oldId);
+                    }
+                }
+            }
+        }
+        if (packetId == 23) {
+            final int type = packet[5] & 0xFF;
+            if (type == 60 || type == 90) {
+                final int index20 = readInt(packet, 20);
+                if (packet.length > 24 && index20 == oldId) {
+                    setInt(packet, 20, newId);
+                }
+            }
+        }
+    }
+
+    public static void setInt(final byte[] buf, final int pos, final int i) {
+        buf[pos] = (byte) (i >> 24);
+        buf[pos + 1] = (byte) (i >> 16);
+        buf[pos + 2] = (byte) (i >> 8);
+        buf[pos + 3] = (byte) i;
+    }
+
+    public static int readInt(final byte[] buf, final int pos) {
+        return (buf[pos] & 0xFF) << 24 | (buf[pos + 1] & 0xFF) << 16 | (buf[pos + 2] & 0xFF) << 8 | (buf[pos + 3] & 0xFF);
+    }
+
+    static {
+        (entityIds = new int[256][])[5] = new int[] { 1 };
+        EntityMap.entityIds[7] = new int[] { 1, 5 };
+        EntityMap.entityIds[17] = new int[] { 1 };
+        EntityMap.entityIds[18] = new int[] { 1 };
+        EntityMap.entityIds[19] = new int[] { 1 };
+        EntityMap.entityIds[20] = new int[] { 1 };
+        EntityMap.entityIds[22] = new int[] { 1, 5 };
+        EntityMap.entityIds[23] = new int[] { 1 };
+        EntityMap.entityIds[24] = new int[] { 1 };
+        EntityMap.entityIds[25] = new int[] { 1 };
+        EntityMap.entityIds[26] = new int[] { 1 };
+        EntityMap.entityIds[28] = new int[] { 1 };
+        EntityMap.entityIds[30] = new int[] { 1 };
+        EntityMap.entityIds[31] = new int[] { 1 };
+        EntityMap.entityIds[32] = new int[] { 1 };
+        EntityMap.entityIds[33] = new int[] { 1 };
+        EntityMap.entityIds[34] = new int[] { 1 };
+        EntityMap.entityIds[35] = new int[] { 1 };
+        EntityMap.entityIds[38] = new int[] { 1 };
+        EntityMap.entityIds[39] = new int[] { 1, 5 };
+        EntityMap.entityIds[40] = new int[] { 1 };
+        EntityMap.entityIds[41] = new int[] { 1 };
+        EntityMap.entityIds[42] = new int[] { 1 };
+        EntityMap.entityIds[55] = new int[] { 1 };
+        EntityMap.entityIds[71] = new int[] { 1 };
+    }
+}

src/main/java/me/ayunami2000/ayungee/Main.java

@@ -7,9 +7,7 @@ import org.yaml.snakeyaml.Yaml;
 
 import javax.imageio.ImageIO;
 import java.io.*;
-import java.net.HttpURLConnection;
+import java.net.*;
-import java.net.URL;
-import java.net.URLConnection;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.nio.file.StandardCopyOption;
@@ -19,8 +17,7 @@ import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 
 public class Main {
-    public static String hostname = "localhost";
+    public static List<ServerItem> servers = new ArrayList<>();
-    public static int port = 25569;
     public static int webPort = 25565;
 
     public static String motdJson = "";
@@ -28,8 +25,6 @@ public class Main {
 
     public static boolean forwarded = false;
 
-    public static boolean eaglerPackets = false;
-
     public static WebSocketServer webSocketServer = null;
 
     public static Map<WebSocket, Client> clients = new HashMap<>();
@@ -107,12 +102,19 @@ public class Main {
             }).start();
         }
 
+        servers.add(new ServerItem("localhost", 25569));
+
+        List<String> stringServers = (List<String>) config.getOrDefault("servers", new ArrayList<>());
+
+        if (!stringServers.isEmpty()) {
+            servers.clear();
+            for (String serverEntry : stringServers) {
+                servers.add(new ServerItem(serverEntry));
+            }
+        }
 
-        hostname = (String) config.getOrDefault("hostname", "localhost");
-        port = (int) config.getOrDefault("port", 25569);
         webPort = (int) config.getOrDefault("web_port", 25565);
         forwarded = (boolean) config.getOrDefault("forwarded", false);
-        eaglerPackets = (boolean) config.getOrDefault("eag_packets", false);
 
         List<String> defaultMotd = new ArrayList<>();
 
@@ -168,7 +170,7 @@ public class Main {
             switch (pieces[0]) {
                 case "help":
                 case "?":
-                    System.out.println("help ; unban <ip> ; banip <ip> ; ban <username> ; stop");
+                    System.out.println("help ; unban <ip> ; banip <ip> ; ban <username> ; send <username> <serverid> ; stop");
                     break;
                 case "unban":
                 case "pardon":
@@ -229,6 +231,24 @@ public class Main {
                         System.out.println("IP " + pieces[1] + " is already banned!");
                     }
                     break;
+                case "send":
+                case "server":
+                    if (pieces.length == 1 || pieces.length == 2) {
+                        System.out.println("Usage: " + pieces[0] + " <username> <serverindex>");
+                        break;
+                    }
+                    Client targetUser = clients.values().stream().filter(client -> client.username.equals(pieces[1])).findFirst().orElse(clients.values().stream().filter(client -> client.username.equalsIgnoreCase(pieces[1])).findFirst().orElse(null));
+                    if (targetUser == null) {
+                        System.out.println("Unable to find any user with that username!");
+                        break;
+                    }
+                    try {
+                        int destServer = Integer.parseInt(pieces[2]);
+                        targetUser.server = Math.max(0, Math.min(servers.size() - 1, destServer));
+                    } catch (NumberFormatException e) {
+                        System.out.println("That is not a valid number!");
+                    }
+                    break;
                 case "stop":
                 case "end":
                 case "exit":

src/main/java/me/ayunami2000/ayungee/ServerItem.java

@@ -0,0 +1,17 @@
+package me.ayunami2000.ayungee;
+
+public class ServerItem {
+    public String host;
+    public int port = 25565;
+
+    public ServerItem(String h, int p) {
+        host = h;
+        port = p;
+    }
+
+    public ServerItem(String hp) {
+        String[] pieces = hp.split(":");
+        if (pieces.length > 1) port = Integer.parseInt(pieces[1]);
+        host = pieces[0];
+    }
+}

src/main/java/me/ayunami2000/ayungee/Skins.java

@@ -0,0 +1,115 @@
+package me.ayunami2000.ayungee;
+
+import org.java_websocket.WebSocket;
+
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+
+public class Skins {
+    private static final HashMap<String,byte[]> skinCollection = new HashMap();
+    private static final HashMap<String,byte[]> capeCollection = new HashMap();
+    private static final HashMap<String,Long> lastSkinLayerUpdate = new HashMap();
+
+    private static final int[] SKIN_DATA_SIZE = new int[] { 64*32*4, 64*64*4, -9, -9, 1, 64*64*4, -9 }; // 128 pixel skins crash clients
+    private static final int[] CAPE_DATA_SIZE = new int[] { 32*32*4, -9, 1 };
+
+    public static boolean setSkin(String user, WebSocket conn, byte[] initMsg) {
+        if(initMsg.length >= 3) {
+            try {
+                ByteBuffer bb = ByteBuffer.wrap(initMsg);
+                bb.get();
+                int tagLen = bb.getShort();
+                if (!(tagLen >= 0 && tagLen < initMsg.length - 1)) return false;
+                StringBuilder tagBuilder = new StringBuilder();
+                for (int i = 0; i < tagLen; i++) tagBuilder.append(bb.getChar());
+                //int dataLen = bb.getShort();
+                int dataLen = bb.remaining() - 2;
+                String tag = tagBuilder.toString();
+                int offset = 3 + tagLen * 2 + 2;
+                byte[] msg = new byte[dataLen];
+                System.arraycopy(initMsg, offset, msg, 0, dataLen);
+                if("EAG|MySkin".equals(tag)) {
+                    if(!skinCollection.containsKey(user)) {
+                        int t = (int)msg[0] & 0xFF;
+                        if(t >= 0 && t < SKIN_DATA_SIZE.length && msg.length == (SKIN_DATA_SIZE[t] + 1)) {
+                            skinCollection.put(user, msg);
+                        }
+                    }
+                }else if("EAG|MyCape".equals(tag)) {
+                    if(!capeCollection.containsKey(user)) {
+                        int t = (int)msg[0] & 0xFF;
+                        if(t >= 0 && t < CAPE_DATA_SIZE.length && msg.length == (CAPE_DATA_SIZE[t] + 2)) {
+                            capeCollection.put(user, msg);
+                        }
+                    }
+                }else if("EAG|FetchSkin".equals(tag)) {
+                    if(msg.length > 2) {
+                        String fetch = new String(msg, 2, msg.length - 2, StandardCharsets.UTF_8);
+                        byte[] data;
+                        if((data = skinCollection.get(fetch)) != null) {
+                            byte[] conc = new byte[data.length + 2];
+                            conc[0] = msg[0]; conc[1] = msg[1]; //synchronization cookie
+                            System.arraycopy(data, 0, conc, 2, data.length);
+                            if((data = capeCollection.get(fetch)) != null) {
+                                byte[] conc2 = new byte[conc.length + data.length];
+                                System.arraycopy(conc, 0, conc2, 0, conc.length);
+                                System.arraycopy(data, 0, conc2, conc.length, data.length);
+                                conc = conc2;
+                            }
+                            byte[] packetPrefix = new byte[] { (byte) 250, 0, 12, 0, 69, 0, 65, 0, 71, 0, 124, 0, 85, 0, 115, 0, 101, 0, 114, 0, 83, 0, 107, 0, 105, 0, 110, (byte) ((conc.length >>> 8) & 0xFF), (byte) (conc.length & 0xFF) };
+                            byte[] fullPacket = new byte[packetPrefix.length + conc.length];
+                            System.arraycopy(packetPrefix, 0, fullPacket, 0, packetPrefix.length);
+                            System.arraycopy(conc, 0, fullPacket, packetPrefix.length, conc.length);
+                            conn.send(fullPacket);
+                        }
+                    }
+                }else if("EAG|SkinLayers".equals(tag)) {
+                    long millis = System.currentTimeMillis();
+                    Long lsu = lastSkinLayerUpdate.get(user);
+                    if(lsu != null && millis - lsu.longValue() < 700l) { // DoS protection
+                        return false;
+                    }
+                    lastSkinLayerUpdate.put(user, millis);
+                    byte[] data;
+                    if((data = capeCollection.get(user)) != null) {
+                        data[1] = msg[0];
+                    }else {
+                        data = new byte[] { (byte)2, msg[0], (byte)0 };
+                        capeCollection.put(user, data);
+                    }
+                    ByteArrayOutputStream bao = new ByteArrayOutputStream();
+                    DataOutputStream dd = new DataOutputStream(bao);
+                    dd.write(msg[0]);
+                    dd.writeUTF(user);
+                    byte[] bpacket = bao.toByteArray();
+                    byte[] packetPrefix = new byte[] { (byte) 250, 0, 14, 0, 69, 0, 65, 0, 71, 0, 124, 0, 83, 0, 107, 0, 105, 0, 110, 0, 76, 0, 97, 0, 121, 0, 101, 0, 114, 0, 115, (byte) ((bpacket.length >>> 8) & 0xFF), (byte) (bpacket.length & 0xFF) };
+                    int off = bpacket.length == 0 ? 2 : 0;
+                    byte[] fullPacket = new byte[(packetPrefix.length - off) + bpacket.length];
+                    System.arraycopy(packetPrefix, 0, fullPacket, 0, packetPrefix.length - off);
+                    if (bpacket.length != 0) System.arraycopy(bpacket, 0, fullPacket, packetPrefix.length, bpacket.length);
+                    for (WebSocket pl : Main.clients.keySet()) {
+                        if (pl.equals(conn)) continue;
+                        if (pl.isOpen()) pl.send(fullPacket);
+                    }
+                } else {
+                    return false;
+                }
+            }catch(Throwable t) {
+                // hacker
+            }
+        } else {
+            return false;
+        }
+
+        return true;
+    }
+
+    public static void removeSkin(String username) {
+        skinCollection.remove(username);
+        capeCollection.remove(username);
+        lastSkinLayerUpdate.remove(username);
+    }
+}

src/main/java/me/ayunami2000/ayungee/WebSocketProxy.java

@@ -63,6 +63,7 @@ public class WebSocketProxy extends WebSocketServer {
         Client selfClient = Main.clients.remove(conn);
         if (selfClient != null) {
             System.out.println("Player " + selfClient.username + " (" + Main.getIp(conn) + ") left!");
+            Skins.removeSkin(selfClient.username);
             if (selfClient.socket.isClosed()) {
                 try {
                     selfClient.socket.close();
@@ -88,7 +89,7 @@ public class WebSocketProxy extends WebSocketServer {
     }
 
     @Override
-    public void onMessage(WebSocket conn, ByteBuffer message) {
+    public void onMessage(WebSocket conn, ByteBuffer message) { // todo: make use of the fact that it's already a bytebuffer dumbass
         if (Main.bans.contains(Main.getIp(conn))) {
             conn.close();
             return;
@@ -97,60 +98,132 @@ public class WebSocketProxy extends WebSocketServer {
         byte[] msg = message.array();
         if (!Main.clients.containsKey(conn)) {
             if (msg.length > 3 && msg[1] == (byte) 69) {
-                if (msg[3] < 3 || msg[3] > 16) {
+                // todo: it uses shorts dumbass, get with the system
+                short unameLen = (short) ((msg[2] << 8) + msg[3] & 0xff);
+                if (unameLen < 3 || unameLen > 16) {
                     conn.close();
                     return;
                 }
-                byte[] uname = new byte[msg[3]];
                 if (msg.length < 5 + msg[3] * 2) {
                     conn.close();
                     return;
                 }
+                byte[] uname = new byte[unameLen];
                 for (int i = 0; i < uname.length; i++) uname[i] = msg[5 + i * 2];
                 String username = new String(uname);
-                Main.clients.put(conn, new Client(username));
+                Client selfClient = new Client(username);
+                Main.clients.put(conn, selfClient);
                 new Thread(() -> {
                     try {
-                        Socket selfSocket = new Socket(Main.hostname, Main.port);
+                        boolean firstTime = true;
-                        Client selfClient = Main.clients.get(conn);
+                        while (conn.isOpen()) {
-                        selfClient.setSocket(selfSocket);
+                            int currServer = selfClient.server;
-                        while (selfClient.msgCache.size() > 0) selfClient.socketOut.write(selfClient.msgCache.remove(0));
+                            ServerItem chosenServer = Main.servers.get(currServer);
-                        while (conn.isOpen() && !selfSocket.isInputShutdown()) {
+                            Socket selfSocket = new Socket(chosenServer.host, chosenServer.port);
-                            byte[] data = new byte[maxBuffSize];
+                            selfClient.setSocket(selfSocket);
-                            int read = selfClient.socketIn.read(data, 0, maxBuffSize);
+                            if (!firstTime) sendToServer(selfClient.handshake, selfClient);
-                            if (read == maxBuffSize) {
+                            while (selfClient.msgCache.size() > 0) sendToServer(selfClient.msgCache.remove(0), selfClient);
+                            while (conn.isOpen() && !selfSocket.isInputShutdown() && selfClient.server == currServer) {
+                                byte[] dataa = new byte[maxBuffSize];
+                                int read = selfClient.socketIn.read(dataa, 0, maxBuffSize);
+                                byte[] data;
+                                if (read == maxBuffSize) {
+                                    data = dataa;
+                                } else if (read > 0) {
+                                    data = new byte[read];
+                                    System.arraycopy(dataa, 0, data, 0, read);
+                                } else {
+                                    continue;
+                                }
+                                if (firstTime && data[0] == 1) selfClient.clientEntityId = selfClient.serverEntityId = EntityMap.readInt(data, 1);
+                                if (!firstTime && data[0] == 1) {
+                                    selfClient.serverEntityId = EntityMap.readInt(data, 1);
+                                    // assume server is giving valid data; we don't have to validate it because it isn't a potentially malicious client
+                                    byte[] worldByte = new byte[data[6] * 2 + 2];
+                                    System.arraycopy(data, 5, worldByte, 0, worldByte.length);
+                                    byte gamemode = data[worldByte.length + 5];
+                                    byte dimension = data[worldByte.length + 6];
+                                    byte difficulty = data[worldByte.length + 7];
+                                    Arrays.fill(data, (byte) 0);
+                                    data[0] = 9;
+                                    EntityMap.setInt(data, 1, dimension);
+                                    data[5] = difficulty;
+                                    data[6] = gamemode;
+                                    data[7] = (byte)(256 & 0xff);
+                                    data[8] = (byte)((256 >> 8) & 0xff);
+                                    System.arraycopy(worldByte, 0, data, 9, worldByte.length);
+                                    read = 9 + worldByte.length;
+                                    byte[] trimData = new byte[read];
+                                    System.arraycopy(data, 0, trimData, 0, read);
+                                    data = trimData;
+                                    if (conn.isOpen()) conn.send(new byte[] { 9, 0, 0, 0, 1, 0, 0, 1, 0, 0, 7, 0, 100, 0, 101, 0, 102, 0, 97, 0, 117, 0, 108, 0, 116 });
+                                    if (conn.isOpen()) conn.send(new byte[] { 9, 0, 0, 0, -1, 0, 0, 1, 0, 0, 7, 0, 100, 0, 101, 0, 102, 0, 97, 0, 117, 0, 108, 0, 116 });
+                                }
+                                EntityMap.rewrite(data, selfClient.serverEntityId, selfClient.clientEntityId);
                                 if (conn.isOpen()) conn.send(data);
-                            } else if (read > 0) {
-                                byte[] trueData = new byte[read];
-                                System.arraycopy(data, 0, trueData, 0, read);
-                                if (conn.isOpen()) conn.send(trueData);
                             }
+                            if (conn.isOpen() && selfClient.server == currServer) conn.close();
+                            if (!selfSocket.isClosed()) selfSocket.close();
+                            selfClient.socketOut = null;
+                            firstTime = false;
                         }
-                        if (conn.isOpen()) conn.close();
-                        if (!selfSocket.isClosed()) selfSocket.close();
                     } catch (IOException ex) {
                         conn.close();
                     }
                 }).start();
                 msg[1] = (byte) 61;
+                selfClient.handshake = msg;
                 System.out.println("Player " + username + " (" + Main.getIp(conn) + ") joined!");
             } else {
                 conn.close();
                 return;
             }
         }
-        byte[] packet = message.array();
-        if (!Main.eaglerPackets && packet.length >= 11 && packet[0] == -6 && packet[2] >= 4 && packet[4] == 69 && packet[6] == 65 && packet[8] == 71 && packet[10] == 124) return; // EAG|
         Client currClient = Main.clients.get(conn);
-        if (currClient.socketOut == null) {
+        if (msg.length >= 3 && msg[0] == 3) {
-            currClient.msgCache.add(packet);
+            int msgLen = (short) ((msg[1] << 8) + msg[2] & 0xff);
-        } else if (!currClient.socket.isOutputShutdown()) {
+            if (msgLen != 0) {
+                if (msg.length >= 3 + msgLen * 2) {
+                    byte[] chatBytes = new byte[msgLen];
+                    for (int i = 0; i < chatBytes.length; i++) chatBytes[i] = msg[4 + i * 2];
+                    String chatMsg = new String(chatBytes);
+                    if (chatMsg.toLowerCase().startsWith("/server")) {
+                        String msgArgs = chatMsg.substring(7 + (chatMsg.contains(" ") ? 1 : 0));
+                        if (msgArgs.isEmpty()) {
+                            //usage msg
+                            conn.send(new byte[] { 3, 0, 25, 0, (byte) 167, 0, 57, 0, 85, 0, 115, 0, 97, 0, 103, 0, 101, 0, 58, 0, 32, 0, 47, 0, 115, 0, 101, 0, 114, 0, 118, 0, 101, 0, 114, 0, 32, 0, 60, 0, 110, 0, 117, 0, 109, 0, 98, 0, 101, 0, 114, 0, 62 });
+                        } else {
+                            try {
+                                int destServer = Integer.parseInt(msgArgs);
+                                currClient.server = Math.max(0, Math.min(Main.servers.size() - 1, destServer));
+                            } catch (NumberFormatException e) {
+                                //not a number
+                                conn.send(new byte[] { 3, 0, 29, 0, (byte) 167, 0, 57, 0, 84, 0, 104, 0, 97, 0, 116, 0, 32, 0, 105, 0, 115, 0, 32, 0, 110, 0, 111, 0, 116, 0, 32, 0, 97, 0, 32, 0, 118, 0, 97, 0, 108, 0, 105, 0, 100, 0, 32, 0, 110, 0, 117, 0, 109, 0, 98, 0, 101, 0, 114, 0, 33 });
+                            }
+                        }
+                        return; // don't send to underlying server
+                    }
+                }
+            }
+        }
+        if (msg.length > 0 && msg[0] == (byte) 250) {
+            if (Skins.setSkin(currClient.username, conn, msg)) return;
+        }
+        if (currClient.socketOut == null || currClient.socket.isOutputShutdown()) {
+            currClient.msgCache.add(msg);
+        } else {
             try {
-                currClient.socketOut.write(packet);
+                sendToServer(msg, currClient);
             } catch (IOException ignored) {}
         }
     }
 
+    public void sendToServer(byte[] orig, Client client) throws IOException {
+        byte[] data = orig.clone();
+        EntityMap.rewrite(data, client.clientEntityId, client.serverEntityId);
+        client.socketOut.write(data);
+    }
+
     @Override
     public void onError(WebSocket conn, Exception ex) {
         //

src/main/resources/config.yml

@@ -1,13 +1,10 @@
-# mc server ip
+# mc servers in network. first one is default/hub
-hostname: localhost
+servers:
-# mc server port
+  - localhost:25569
-port: 25569
 # ayungee port
 web_port: 25565
 # if this is behind a reverse proxy, such as caddy or nginx. uses X-Real-IP header.
 forwarded: false
-# forward eagler-specific packets?
-eag_packets: false
 # origin blacklist URL (leave empty to disable syncing)
 origin_blacklist: "https://g.eags.us/eaglercraft/origin_blacklist.txt"
 # whitelisted origins -- if specified, only allows the listed origins to connect