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// Copyright 2023 Code Intelligence GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.example;
import com.code_intelligence.jazzer.api.FuzzedDataProvider;
import java.io.Reader;
import java.io.StringReader;
import java.io.Writer;
import java.util.List;
import javax.script.Bindings;
import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
public class ScriptEngineInjection {
private final static ScriptEngine engine = new DummyScriptEngine();
private final static ScriptContext context = new DummyScriptContext();
private static void insecureScriptEval(String input) throws Exception {
engine.eval(new StringReader(input), context);
}
public static void fuzzerTestOneInput(FuzzedDataProvider data) throws Exception {
try {
insecureScriptEval(data.consumeRemainingAsAsciiString());
} catch (Exception ignored) {
}
}
private static class DummyScriptEngine implements ScriptEngine {
@Override
public Bindings createBindings() {
return null;
}
@Override
public Object eval(String script) {
return null;
}
@Override
public Object eval(Reader reader) {
return null;
}
@Override
public Object eval(String script, ScriptContext context) {
return null;
}
@Override
public Object eval(Reader reader, ScriptContext context) {
return null;
}
@Override
public Object eval(String script, Bindings n) {
return null;
}
@Override
public Object eval(Reader reader, Bindings n) {
return null;
}
@Override
public Object get(String key) {
return null;
}
@Override
public Bindings getBindings(int scope) {
return null;
}
@Override
public ScriptContext getContext() {
return null;
}
@Override
public ScriptEngineFactory getFactory() {
return null;
}
@Override
public void put(String key, Object value) {}
@Override
public void setBindings(Bindings bindings, int scope) {}
@Override
public void setContext(ScriptContext context) {}
public DummyScriptEngine() {}
}
private static class DummyScriptContext implements ScriptContext {
@Override
public void setBindings(Bindings bindings, int scope) {}
@Override
public Bindings getBindings(int scope) {
return null;
}
@Override
public void setAttribute(String name, Object value, int scope) {}
@Override
public Object getAttribute(String name, int scope) {
return null;
}
@Override
public Object removeAttribute(String name, int scope) {
return null;
}
@Override
public Object getAttribute(String name) {
return null;
}
@Override
public int getAttributesScope(String name) {
return 0;
}
@Override
public Writer getWriter() {
return null;
}
@Override
public Writer getErrorWriter() {
return null;
}
@Override
public void setWriter(Writer writer) {}
@Override
public void setErrorWriter(Writer writer) {}
@Override
public Reader getReader() {
return null;
}
@Override
public void setReader(Reader reader) {}
@Override
public List<Integer> getScopes() {
return null;
}
}
}
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