Merge pull request #15 from eaglerforge/main

A lot of new stuff + u38 compat

examplemods/AsyncSink.js

@@ -0,0 +1,132 @@
+(function AsyncSinkFn() {
+    //AsyncSink is a plugin to debug and override asynchronous methods in EaglercraftX
+    function runtimeComponent() {
+        const booleanResult = (b) => ModAPI.hooks.methods.nlevit_BooleanResult__new(b * 1);
+        const wrap = ModAPI.hooks.methods.otji_JSWrapper_wrap;
+        const unwrap = ModAPI.hooks.methods.otji_JSWrapper_unwrap;
+        function getAsyncHandlerName(name) {
+            var suffix = `$AsyncHandlers_${name}$_asyncCall_$`;
+            return ModAPI.hooks._rippedMethodKeys.find(x => x.endsWith(suffix));
+        }
+        var fs_debugging = false;
+        const encoder = new TextEncoder('utf-8');
+        var filesystemPlatform = ModAPI.hooks.methods.nlevit_IndexedDBFilesystem$AsyncHandlers_readWholeFile ? true : false;
+        if (!filesystemPlatform) {
+            console.error("AsyncSink requires EaglercraftX u37 or greater to work! Attempting to run anyway...");
+        }
+        const AsyncSink = {};
+        const originalSuspend = ModAPI.hooks.TeaVMThread.prototype.suspend;
+        AsyncSink.startDebugging = function hookIntoSuspend() {
+            ModAPI.hooks.TeaVMThread.prototype.suspend = function suspend(...args) {
+                console.log("[AsyncSink] Context suspended! Callback: ", args[0]);
+                return originalSuspend.apply(this, args);
+            }
+        }
+        AsyncSink.stopDebugging = function unhookFromSuspend() {
+            ModAPI.hooks.TeaVMThread.prototype.suspend = originalSuspend;
+        }
+
+        AsyncSink.startDebuggingFS = function hookIntoSuspend() {
+            fs_debugging = true;
+        }
+        AsyncSink.stopDebuggingFS = function unhookFromSuspend() {
+            fs_debugging = false;
+        }
+
+        // @type Map<string, ArrayBuffer>
+        AsyncSink.FS = new Map();
+        AsyncSink.FSOverride = new Set();
+        AsyncSink.MIDDLEWARE = [];
+        AsyncSink.setFile = function setFile(path, data) {
+            if (typeof data === "string") {
+                data = encoder.encode(data).buffer;
+            }
+            AsyncSink.FSOverride.add(path);
+            AsyncSink.FS.set(path, data);
+            return true;
+        }
+
+        AsyncSink.deleteFile = function deleteFile(path) {
+            AsyncSink.FSOverride.delete(path);
+            AsyncSink.FS.delete(path);
+            return true;
+        }
+
+        AsyncSink.getFile = function getFile(path) {
+            return AsyncSink.FS.get(path) || new ArrayBuffer(0);
+        }
+
+        AsyncSink.fileExists = function fileExists(path) {
+            return AsyncSink.FS.has(path);
+        }
+
+        var readWholeFileName = getAsyncHandlerName("readWholeFile");
+        var writeWholeFileName = getAsyncHandlerName("writeWholeFile");
+        var deleteFileName = getAsyncHandlerName("deleteFile");
+        var fileExistsName = getAsyncHandlerName("fileExists");
+
+        const originalReadWholeFile = ModAPI.hooks.methods[readWholeFileName];
+        ModAPI.hooks.methods[readWholeFileName] = function (...args) {
+            if (fs_debugging) {
+                console.log("[AsynkSinkFS] File read request sent: " + ModAPI.util.ustr(args[1]));
+            }
+            if (AsyncSink.FSOverride.has(ModAPI.util.ustr(args[1]))) {
+                if (fs_debugging) {
+                    console.log("[AsynkSinkFS] Replied with copy from fake filesystem.");
+                }
+                return wrap(AsyncSink.getFile(ModAPI.util.ustr(args[1])));
+            }
+            
+            return originalReadWholeFile.apply(this, args);
+        };
+
+        const originalWriteWholeFile = ModAPI.hooks.methods[writeWholeFileName];
+        ModAPI.hooks.methods[writeWholeFileName] = function (...args) {
+            if (fs_debugging) {
+                console.log("[AsynkSinkFS] File write request sent: " + ModAPI.util.ustr(args[1]), args[2]);
+            }
+            if (AsyncSink.FSOverride.has(ModAPI.util.ustr(args[1]))) {
+                if (fs_debugging) {
+                    console.log("[AsynkSinkFS] Writing to fake filesystem.");
+                }
+                AsyncSink.setFile(ModAPI.util.ustr(args[1]), args[2]);
+                return booleanResult(true);
+            }
+            return originalWriteWholeFile.apply(this, args);
+        };
+
+        const originalDeleteFile = ModAPI.hooks.methods[deleteFileName];
+        ModAPI.hooks.methods[deleteFileName] = function (...args) {
+            if (fs_debugging) {
+                console.log("[AsynkSinkFS] File delete request sent: " + ModAPI.util.ustr(args[1]));
+            }
+            if (AsyncSink.FSOverride.has(ModAPI.util.ustr(args[1]))) {
+                if (fs_debugging) {
+                    console.log("[AsynkSinkFS] Deleting entry from fake filesystem.");
+                }
+                AsyncSink.deleteFile(ModAPI.util.ustr(args[1]));
+                return booleanResult(true);
+            }
+            return originalDeleteFile.apply(this, args);
+        };
+
+        const originalFileExists = ModAPI.hooks.methods[fileExistsName];
+        ModAPI.hooks.methods[fileExistsName] = function (...args) {
+            if (fs_debugging) {
+                console.log("[AsynkSinkFS] File exists request sent: " + ModAPI.util.ustr(args[1]));
+            }
+            if (AsyncSink.FSOverride.has(ModAPI.util.ustr(args[1]))) {
+                if (fs_debugging) {
+                    console.log("[AsynkSinkFS] Replying with information from fake filesystem.");
+                }
+                var result = AsyncSink.fileExists(ModAPI.util.ustr(args[1]));
+                return booleanResult(result);
+            }
+            return originalFileExists.apply(this, args);
+        };
+        globalThis.AsyncSink = AsyncSink;
+        ModAPI.events.callEvent("lib:asyncsink", {});
+    }
+    runtimeComponent();
+    ModAPI.dedicatedServer.appendCode(runtimeComponent);
+})();

examplemods/advanced_vclip.js

@@ -0,0 +1,79 @@
+ModAPI.meta.title("Advanced VClip Exploit");
+ModAPI.meta.description("Use .vclip <offset> to vertically phase through blocks with custom packet handling.");
+ModAPI.meta.credits("By radmanplays");
+
+// Custom syntax error function
+function syntaxError() {
+    ModAPI.displayToChat("[AdvancedVClip] Syntax error: Usage is .vclip <offset>");
+}
+
+ModAPI.require("player");
+ModAPI.addEventListener("sendchatmessage", (ev) => {
+    var msg = ev.message.toLowerCase();
+    if (msg.startsWith(".vclip")) {
+        ev.preventDefault();
+
+        var args = msg.split(" ");
+        if (args.length != 2) {
+            syntaxError();
+            return;
+        }
+
+        var offset = parseFloat(args[1]);
+        if (isNaN(offset)) {
+            syntaxError();
+            return;
+        }
+
+        var packetsRequired = Math.ceil(Math.abs(offset / 10));
+        if (packetsRequired > 20) {
+            packetsRequired = 1; // Limit to avoid server kicking for too many packets
+        }
+
+        var player = ModAPI.player;
+        var ridingEntity = player.ridingEntity;
+
+        if (ridingEntity != null) {
+            // Player is riding an entity
+            for (var packetNumber = 0; packetNumber < (packetsRequired - 1); packetNumber++) {
+                // Simulate entity movement
+                ridingEntity.posY += offset / packetsRequired; // Move a fraction of the total offset
+                player.sendQueue.addToSendQueue({
+                    "action": "RIDING_JUMP", // Simulate a riding jump action
+                    "entityId": ridingEntity.getEntityId(),
+                });
+            }
+
+            // Final move
+            ridingEntity.posY += offset / packetsRequired;
+            player.sendQueue.addToSendQueue({
+                "action": "RIDING_JUMP",
+                "entityId": ridingEntity.getEntityId(),
+            });
+
+        } else {
+            // Player is not riding any entity
+            for (var packetNumber = 0; packetNumber < (packetsRequired - 1); packetNumber++) {
+                player.getNetHandler().addToSendQueue({
+                    "x": player.posX,
+                    "y": player.posY,
+                    "z": player.posZ,
+                    "onGround": true
+                });
+            }
+
+            // Final move
+            player.getNetHandler().addToSendQueue({
+                "x": player.posX,
+                "y": player.posY + offset,
+                "z": player.posZ,
+                "onGround": true
+            });
+
+            // Set the player’s final position
+            player.setPosition(player.posX, player.posY + offset, player.posZ);
+        }
+
+        ModAPI.displayToChat("[AdvancedVClip] VClipped " + offset + " blocks.");
+    }
+});

examplemods/npcspawner.js

@@ -4,11 +4,18 @@
             if (!ModAPI.reflect.getClassById("net.minecraft.entity.player.EntityPlayerMP").instanceOf(event.sender.getRef())) { return; }
 
             if (event.command.toLowerCase().startsWith("/spawnnpc")) {
+                if (!globalThis.AsyncSink) {
+                    return alert("NPC Spawner relies on the AsyncSink library.");
+                }
                 const world = event.sender.getServerForPlayer();
                 const senderPos = event.sender.getPosition();
 
                 // Create a fake player GameProfile
                 const GameProfileClass = ModAPI.reflect.getClassById("net.lax1dude.eaglercraft.v1_8.mojang.authlib.GameProfile");
+                var UUID = ModAPI.hooks.methods[ModAPI.util.getMethodFromPackage("net.lax1dude.eaglercraft.v1_8.EaglercraftUUID", "randomUUID")]();
+
+                //Not using UUID to make patching easier for now
+                
                 const fakeProfile = GameProfileClass.constructors[1](null, ModAPI.util.str("Steve"));
 
                 // Get the PlayerInteractionManager class
@@ -16,8 +23,11 @@
                 const playerInteractionManager = PlayerInteractionManagerClass.constructors[0](world.getRef());
 
                 // Get the EntityPlayerMP class to spawn the fake player
+                AsyncSink.startDebuggingFS();
                 const EntityPlayerMPClass = ModAPI.reflect.getClassById("net.minecraft.entity.player.EntityPlayerMP");
-                console.log(ModAPI.server.getConfigurationManager());
+                var worldNameProp = ModAPI.util.getNearestProperty(ModAPI.server.getRef(), "$worldName");
+                var worldName = ModAPI.server.getRef()[worldNameProp];
+                console.log(ModAPI.util.ustr(worldName));
                 const fakePlayer = EntityPlayerMPClass.constructors[0](
                     ModAPI.server.getRef(), world.getRef(), fakeProfile, playerInteractionManager
                 );

injector.js

@@ -55,6 +55,11 @@ function entriesToStaticVariableProxy(entries, prefix) {
     return proxy;
 }
 async function processClasses(string) {
+    if (globalThis.doShronk) {
+        if (!confirm("The minify step is extremely slow, especially on lower-end devices, and can take upwards of 15 minutes.")) {
+            return;
+        }
+    }
     _status("Beginning patch process...");
     await wait(50);
     var patchedFile = string;

postinit.js

@@ -738,7 +738,13 @@ globalThis.modapi_postinit = "(" + (() => {
             sender: new Proxy($sender, TeaVM_to_Recursive_BaseData_ProxyConf),
             command: ModAPI.util.jclStrToJsStr($rawCommand)
         }
+        if (data.command.toLowerCase().startsWith("/efdebug")) {
+            // Utility command to debug the dedicated server.
+            data.preventDefault = true;
+            debugger;
+        } else {
             ModAPI.events.callEvent("processcommand", data);
+        }
         if (data.preventDefault) {
             return 0;
         }
@@ -749,10 +755,16 @@ globalThis.modapi_postinit = "(" + (() => {
         return x;
     }
 
+    const originalBootstrap = ModAPI.hooks.staticMethods[ModAPI.util.getMethodFromPackage("net.minecraft.init.Bootstrap", "register")];
+    ModAPI.hooks.methods[ModAPI.util.getMethodFromPackage("net.minecraft.init.Bootstrap", "register")] = function (...args) {
+        var x = originalBootstrap.apply(this, args);
         ModAPI.items = new Proxy(ModAPI.hooks._classMap[ModAPI.util.getCompiledName("net.minecraft.init.Items")].staticVariables, StaticProps_ProxyConf);
         ModAPI.blocks = new Proxy(ModAPI.hooks._classMap[ModAPI.util.getCompiledName("net.minecraft.init.Blocks")].staticVariables, StaticProps_ProxyConf);
         ModAPI.materials = new Proxy(ModAPI.hooks._classMap[ModAPI.util.getCompiledName("net.minecraft.block.material.Material")].staticVariables, StaticProps_ProxyConf);
         ModAPI.enchantments = new Proxy(ModAPI.hooks._classMap[ModAPI.util.getCompiledName("net.minecraft.enchantment.Enchantment")].staticVariables, StaticProps_ProxyConf);
+        console.log("[ModAPI] Hooked into bootstrap. .blocks, .items, .materials and .enchantments are now accessible.");
+        return x;
+    }
 
     const originalOptionsInit = ModAPI.hooks.methods[ModAPI.util.getMethodFromPackage("net.minecraft.client.gui.GuiOptions", "initGui")];
     ModAPI.hooks.methods[ModAPI.util.getMethodFromPackage("net.minecraft.client.gui.GuiOptions", "initGui")] = function (...args) {