JsonCanonicalizerFuzzer.java

/*
 * Copyright 2023 The Sigstore Authors.
 *
 * 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 fuzzing;

import com.code_intelligence.jazzer.api.FuzzedDataProvider;
import dev.sigstore.json.canonicalizer.JsonCanonicalizer;
import dev.sigstore.json.canonicalizer.NumberToJSON;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

public class JsonCanonicalizerFuzzer {
  public static void fuzzerTestOneInput(FuzzedDataProvider data) {
    try {
      Double value = data.consumeDouble();
      byte[] byteArray = data.consumeRemainingAsBytes();

      NumberToJSON.serializeNumber(value);

      new JsonCanonicalizer(byteArray);
      new JsonCanonicalizer(new String(byteArray, StandardCharsets.UTF_8));
    } catch (IOException e) {
      // Known exception
    }
  }
}