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com.therouter.plugin.AddCodeVisitor Maven / Gradle / Ivy
package com.therouter.plugin;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.commons.AdviceAdapter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class AddCodeVisitor extends ClassVisitor {
private List serviceProvideList;
private Map serviceProvideMap;
private List autowiredList;
private List routeList;
private final boolean isIncremental;
public AddCodeVisitor(ClassVisitor cv, Map serviceProvideMap, Set autowiredSet, Set routeSet, boolean incremental) {
super(Opcodes.ASM7, cv);
this.serviceProvideList = new ArrayList<>(serviceProvideMap.keySet());
this.serviceProvideMap = serviceProvideMap;
this.autowiredList = new ArrayList<>(autowiredSet);
this.routeList = new ArrayList<>(routeSet);
this.isIncremental = incremental;
Collections.sort(this.serviceProvideList);
Collections.sort(this.autowiredList);
Collections.sort(this.routeList);
}
@Override
public MethodVisitor visitMethod(int access, String methodName, String desc, String signature, String[] exceptions) {
MethodVisitor mv = cv.visitMethod(access, methodName, desc, signature, exceptions);
mv = new AdviceAdapter(Opcodes.ASM7, mv, access, methodName, desc) {
@Override
protected void onMethodEnter() {
super.onMethodEnter();
//不代理构造函数
if (!"".equals(methodName)) {
if ("trojan".equals(methodName)) {
for (String serviceProviderClassName : serviceProvideList) {
serviceProviderClassName = "a/" + serviceProviderClassName;
Label tryStart = new Label();
Label tryEnd = new Label();
Label labelCatch = new Label();
mv.visitTryCatchBlock(tryStart, tryEnd, labelCatch, "java/lang/Throwable");
mv.visitLabel(tryStart);
mv.visitMethodInsn(INVOKESTATIC, "com/therouter/TheRouter", "getRouterInject", "()Lcom/therouter/inject/RouterInject;", false);
mv.visitTypeInsn(NEW, serviceProviderClassName);
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL, serviceProviderClassName, "", "()V", false);
mv.visitMethodInsn(INVOKEVIRTUAL, "com/therouter/inject/RouterInject", "privateAddInterceptor", "(Lcom/therouter/inject/Interceptor;)V", false);
mv.visitLabel(tryEnd);
Label tryCatchBlockEnd = new Label();
mv.visitJumpInsn(GOTO, tryCatchBlockEnd);
mv.visitLabel(labelCatch);
mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[]{"java/lang/Throwable"});
mv.visitVarInsn(ASTORE, 0);
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Throwable", "printStackTrace", "()V", false);
mv.visitLabel(tryCatchBlockEnd);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
}
if ("addFlowTask".equals(methodName)) {
for (String serviceProviderClassName : serviceProvideList) {
serviceProviderClassName = "a/" + serviceProviderClassName;
String aptVersion = serviceProvideMap.get(serviceProviderClassName.substring(2));
// FlowTask 功能是从1.0.13开始引入的，
// 没有版本号的都是老版本，不能插入字节码，但源码引用的例外，需要插入字节码
if (aptVersion != null && !aptVersion.equals("0.0.0")) {
Label label0 = new Label();
Label label1 = new Label();
Label label2 = new Label();
mv.visitTryCatchBlock(label0, label1, label2, "java/lang/Throwable");
mv.visitLabel(label0);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(INVOKESTATIC, serviceProviderClassName, "addFlowTask", "(Landroid/content/Context;Lcom/therouter/flow/Digraph;)V", false);
mv.visitLabel(label1);
Label tryCatchBlockEnd = new Label();
mv.visitJumpInsn(GOTO, tryCatchBlockEnd);
mv.visitLabel(label2);
mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[]{"java/lang/Throwable"});
mv.visitVarInsn(ASTORE, 2);
mv.visitLabel(tryCatchBlockEnd);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
}
}
if ("autowiredInject".equals(methodName)) {
for (String autowiredClassName : autowiredList) {
Label tryStart = new Label();
Label tryEnd = new Label();
Label labelCatch = new Label();
mv.visitTryCatchBlock(tryStart, tryEnd, labelCatch, "java/lang/Throwable");
Label labelInvoke = new Label();
mv.visitLabel(tryStart);
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESTATIC, autowiredClassName.replace('.', '/'), methodName, "(Ljava/lang/Object;)V", false);
mv.visitLabel(tryEnd);
mv.visitJumpInsn(GOTO, labelInvoke);
mv.visitLabel(labelCatch);
mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[]{"java/lang/ClassCastException"});
mv.visitVarInsn(ASTORE, 1);
mv.visitLabel(labelInvoke);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
}
if ("initDefaultRouteMap".equals(methodName)) {
for (String route : routeList) {
Label tryStart = new Label();
Label tryEnd = new Label();
Label labelCatch = new Label();
Label tryCatchBlockEnd = new Label();
mv.visitTryCatchBlock(tryStart, tryEnd, labelCatch, "java/lang/Throwable");
mv.visitLabel(tryStart);
String className = route.replace(".class", "").replace('.', '/');
mv.visitMethodInsn(INVOKESTATIC, className, "addRoute", "()V", false);
mv.visitLabel(tryEnd);
mv.visitJumpInsn(GOTO, tryCatchBlockEnd);
mv.visitLabel(labelCatch);
mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[]{"java/lang/Throwable"});
mv.visitVarInsn(ASTORE, 0);
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Throwable", "printStackTrace", "()V", false);
mv.visitLabel(tryCatchBlockEnd);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
}
if (!isIncremental) {
mv.visitInsn(RETURN);
}
}
}
};
return mv;
}
}
