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/*
* Copyright 2022 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.HookType;
import com.code_intelligence.jazzer.api.Jazzer;
import com.code_intelligence.jazzer.api.MethodHook;
import java.lang.invoke.MethodHandle;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
@SuppressWarnings("InvalidPatternSyntax")
public class DisabledHooksFuzzer {
public static void fuzzerTestOneInput(byte[] data) {
triggerCustomHook();
triggerBuiltinHook();
}
private static void triggerCustomHook() {}
private static void triggerBuiltinHook() {
// Trigger the built-in regex injection detector if it is enabled, but catch the exception
// thrown if it isn't.
try {
Pattern.compile("[");
} catch (PatternSyntaxException ignored) {
}
}
}
class DisabledHook {
@MethodHook(type = HookType.BEFORE, targetClassName = "com.example.DisabledHooksFuzzer",
targetMethod = "triggerCustomHook", targetMethodDescriptor = "()V")
public static void
triggerCustomHookHook(MethodHandle method, Object thisObject, Object[] arguments, int hookId) {
Jazzer.reportFindingFromHook(
new IllegalStateException("hook on triggerCustomHook should have been disabled"));
}
}
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