Files
jetbra/jetbra-agent/src/main/java/win/novice/li/AgentMain.java
2024-01-20 21:05:18 +08:00

56 lines
2.4 KiB
Java

package win.novice.li;
import net.bytebuddy.agent.builder.AgentBuilder;
import net.bytebuddy.asm.Advice;
import net.bytebuddy.matcher.ElementMatchers;
import java.lang.instrument.Instrumentation;
import java.util.Set;
public class AgentMain {
public static void premain(String agentArgs, Instrumentation inst) throws Exception {
printLogo();
AgentBuilder agentBuilder = newAgentBuilder();
agentBuilder
.type(ElementMatchers.named("java.security.cert.PKIXBuilderParameters"))
.transform((builder, typeDescription, classLoader, module, protectionDomain) -> builder
.visit(Advice.to(PKIXBuilderParametersAdvice.class)
.on(ElementMatchers.isConstructor().and(ElementMatchers.takesArgument(0, Set.class)))))
.asTerminalTransformation()
.type(ElementMatchers.named("sun.net.www.http.HttpClient"))
.transform((builder, typeDescription, classLoader, module, protectionDomain) -> builder
.visit(Advice.to(HttpClientAdvice.class)
.on(ElementMatchers.named("openServer").and(ElementMatchers.takesArgument(0, String.class)))))
.asTerminalTransformation()
.type(ElementMatchers.named("java.lang.System"))
.transform((builder, typeDescription, classLoader, module, protectionDomain) -> builder
.visit(Advice.to(SystemAdvice.class)
.on(ElementMatchers.named("getProperty"))))
.asTerminalTransformation()
.installOn(inst);
agentBuilder.installOn(inst);
}
static AgentBuilder newAgentBuilder() {
return new AgentBuilder.Default()
.with(AgentBuilder.RedefinitionStrategy.RETRANSFORMATION)
.with(AgentBuilder.InitializationStrategy.NoOp.INSTANCE)
.with(AgentBuilder.TypeStrategy.Default.REDEFINE)
.ignore(ElementMatchers.nameStartsWith("net.bytebuddy."));
}
static void printLogo() {
System.out.println(" _ _ _ \n" +
" | | ___| |_| |__ _ __ __ _ \n" +
" _ | |/ _ \\ __| '_ \\| '__/ _` |\n" +
"| |_| | __/ |_| |_) | | | (_| |\n" +
" \\___/ \\___|\\__|_.__/|_| \\__,_|");
}
}