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https://github.com/PaperMC/Paper.git
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198 lines
9.5 KiB
Diff
198 lines
9.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Zach Brown <zach@zachbr.io>
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Date: Wed, 3 Oct 2018 20:09:18 -0400
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Subject: [PATCH] Hook into CB plugin rewrites
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Allows us to do fun stuff like rewrite the OBC util fastutil location to
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our own relocation. Also lets us rewrite NMS calls for when we're
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debugging in an IDE pre-relocate.
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diff --git a/src/main/java/org/bukkit/craftbukkit/util/Commodore.java b/src/main/java/org/bukkit/craftbukkit/util/Commodore.java
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index 6a661bbae8bc35a4c3b4bb7e86dd77a7575fdd97..31714ce05b1023b82e96b36ba52254b4e3e948f2 100644
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--- a/src/main/java/org/bukkit/craftbukkit/util/Commodore.java
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+++ b/src/main/java/org/bukkit/craftbukkit/util/Commodore.java
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@@ -7,6 +7,7 @@ import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Enumeration;
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+import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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@@ -15,6 +16,7 @@ import java.util.jar.JarEntry;
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import java.util.jar.JarFile;
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import java.util.jar.JarOutputStream;
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import java.util.zip.ZipEntry;
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+import javax.annotation.Nonnull;
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import joptsimple.OptionParser;
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import joptsimple.OptionSet;
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import joptsimple.OptionSpec;
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@@ -23,7 +25,9 @@ import org.bukkit.plugin.AuthorNagException;
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import org.objectweb.asm.ClassReader;
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import org.objectweb.asm.ClassVisitor;
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import org.objectweb.asm.ClassWriter;
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+import org.objectweb.asm.FieldVisitor;
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import org.objectweb.asm.Handle;
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+import org.objectweb.asm.Label;
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import org.objectweb.asm.MethodVisitor;
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import org.objectweb.asm.Opcodes;
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import org.objectweb.asm.Type;
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@@ -51,6 +55,40 @@ public class Commodore {
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"org/spigotmc/event/entity/EntityDismountEvent", "org/bukkit/event/entity/EntityDismountEvent"
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);
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+ // Paper start - Plugin rewrites
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+ private static final Map<String, String> SEARCH_AND_REMOVE = initReplacementsMap();
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+ private static Map<String, String> initReplacementsMap() {
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+ Map<String, String> getAndRemove = new HashMap<>();
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+ // Be wary of maven shade's relocations
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+
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+ final java.util.jar.Manifest manifest = io.papermc.paper.util.JarManifests.manifest(Commodore.class);
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+ if (Boolean.getBoolean( "debug.rewriteForIde") && manifest != null)
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+ {
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+ // unversion incoming calls for pre-relocate debug work
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+ final String NMS_REVISION_PACKAGE = "v" + manifest.getMainAttributes().getValue("CraftBukkit-Package-Version") + "/";
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+
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+ getAndRemove.put("org/bukkit/".concat("craftbukkit/" + NMS_REVISION_PACKAGE), NMS_REVISION_PACKAGE);
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+ }
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+
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+ return getAndRemove;
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+ }
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+
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+ @Nonnull
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+ private static String getOriginalOrRewrite(@Nonnull String original)
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+ {
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+ String rewrite = null;
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+ for ( Map.Entry<String, String> entry : SEARCH_AND_REMOVE.entrySet() )
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+ {
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+ if ( original.contains( entry.getKey() ) )
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+ {
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+ rewrite = original.replace( entry.getValue(), "" );
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+ }
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+ }
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+
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+ return rewrite != null ? rewrite : original;
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+ }
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+ // Paper end - Plugin rewrites
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+
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public static void main(String[] args) {
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OptionParser parser = new OptionParser();
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OptionSpec<File> inputFlag = parser.acceptsAll(Arrays.asList("i", "input")).withRequiredArg().ofType(File.class).required();
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@@ -118,12 +156,67 @@ public class Commodore {
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ClassWriter cw = new ClassWriter(cr, 0);
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cr.accept(new ClassRemapper(new ClassVisitor(Opcodes.ASM9, cw) {
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+
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+ // Paper start - Rewrite plugins
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+ @Override
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+ public FieldVisitor visitField(int access, String name, String desc, String signature, Object value)
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+ {
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+ desc = getOriginalOrRewrite(desc);
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+ if ( signature != null ) {
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+ signature = getOriginalOrRewrite(signature);
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+ }
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+
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+ return super.visitField( access, name, desc, signature, value) ;
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+ }
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+ // Paper end
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+
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@Override
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public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
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return new MethodVisitor(this.api, super.visitMethod(access, name, desc, signature, exceptions)) {
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+ // Paper start - Plugin rewrites
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+ @Override
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+ public void visitTypeInsn(int opcode, String type) {
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+ type = getOriginalOrRewrite(type);
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+
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+ super.visitTypeInsn(opcode, type);
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+ }
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+
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+ @Override
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+ public void visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack) {
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+ for (int i = 0; i < local.length; i++)
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+ {
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+ if (!(local[i] instanceof String)) { continue; }
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+
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+ local[i] = getOriginalOrRewrite((String) local[i]);
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+ }
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+
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+ for (int i = 0; i < stack.length; i++)
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+ {
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+ if (!(stack[i] instanceof String)) { continue; }
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+
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+ stack[i] = getOriginalOrRewrite((String) stack[i]);
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+ }
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+
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+ super.visitFrame(type, nLocal, local, nStack, stack);
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+ }
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+
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+ @Override
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+ public void visitLocalVariable(String name, String descriptor, String signature, Label start, Label end, int index) {
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+ descriptor = getOriginalOrRewrite(descriptor);
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+
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+ super.visitLocalVariable(name, descriptor, signature, start, end, index);
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+ }
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+ // Paper end
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+
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@Override
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public void visitFieldInsn(int opcode, String owner, String name, String desc) {
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+ // Paper start - Rewrite plugins
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+ owner = getOriginalOrRewrite(owner);
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+ if (desc != null) {
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+ desc = getOriginalOrRewrite(desc);
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+ }
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+ // Paper end
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if (owner.equals("org/bukkit/block/Biome")) {
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switch (name) {
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case "NETHER":
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@@ -278,6 +371,10 @@ public class Commodore {
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}
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// Paper start - Rewrite plugins
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+ owner = getOriginalOrRewrite(owner) ;
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+ if (desc != null) {
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+ desc = getOriginalOrRewrite(desc);
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+ }
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if ((owner.equals("org/bukkit/OfflinePlayer") || owner.equals("org/bukkit/entity/Player")) && name.equals("getPlayerProfile") && desc.equals("()Lorg/bukkit/profile/PlayerProfile;")) {
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super.visitMethodInsn(opcode, owner, name, "()Lcom/destroystokyo/paper/profile/PlayerProfile;", itf);
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return;
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@@ -374,6 +471,13 @@ public class Commodore {
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@Override
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public void visitLdcInsn(Object value) {
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+ // Paper start
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+ if (value instanceof Type type) {
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+ if (type.getSort() == Type.OBJECT || type.getSort() == Type.ARRAY) {
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+ value = Type.getType(getOriginalOrRewrite(type.getDescriptor()));
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+ }
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+ }
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+ // Paper end
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if (value instanceof String && ((String) value).equals("com.mysql.jdbc.Driver")) {
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super.visitLdcInsn("com.mysql.cj.jdbc.Driver");
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return;
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@@ -384,6 +488,14 @@ public class Commodore {
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@Override
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public void visitInvokeDynamicInsn(String name, String descriptor, Handle bootstrapMethodHandle, Object... bootstrapMethodArguments) {
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+ // Paper start - Rewrite plugins
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+ name = getOriginalOrRewrite(name);
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+ if (descriptor != null) {
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+ descriptor = getOriginalOrRewrite(descriptor);
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+ }
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+ final String fName = name;
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+ final String fDescriptor = descriptor;
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+ // Paper end - Rewrite plugins
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if (bootstrapMethodHandle.getOwner().equals("java/lang/invoke/LambdaMetafactory")
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&& bootstrapMethodHandle.getName().equals("metafactory") && bootstrapMethodArguments.length == 3) {
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Type samMethodType = (Type) bootstrapMethodArguments[0];
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@@ -400,7 +512,7 @@ public class Commodore {
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methodArgs.add(new Handle(newOpcode, newOwner, newName, newDescription, newItf));
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methodArgs.add(newInstantiated);
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- super.visitInvokeDynamicInsn(name, descriptor, bootstrapMethodHandle, methodArgs.toArray(Object[]::new));
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+ super.visitInvokeDynamicInsn(fName, fDescriptor, bootstrapMethodHandle, methodArgs.toArray(Object[]::new)); // Paper - use final local vars
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}, implMethod.getTag(), implMethod.getOwner(), implMethod.getName(), implMethod.getDesc(), implMethod.isInterface(), samMethodType, instantiatedMethodType);
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return;
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}
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