examples/src/main/java/com/example/BatikTranscoderFuzzer.java

// 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.*;
import org.apache.batik.transcoder.TranscoderException;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;
import org.apache.batik.transcoder.image.JPEGTranscoder;

public class BatikTranscoderFuzzer {
  public static void fuzzerTestOneInput(FuzzedDataProvider data) throws IOException {
    String host = data.consumeRemainingAsString();

    byte[] svg =
        ("<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" >\n"
            + "<image width=\"50\" height=\"50\" xlink:href=\"https://" + host + "/\"></image>\n"
            + "</svg>")
            .getBytes();

    // Convert SVG to JPEG
    try {
      JPEGTranscoder transcoder = new JPEGTranscoder();
      TranscoderInput input = new TranscoderInput(new ByteArrayInputStream(svg));
      TranscoderOutput output = new TranscoderOutput(new ByteArrayOutputStream());
      transcoder.transcode(input, output);
    } catch (TranscoderException | IllegalArgumentException e) {
      // Ignored
    }
  }
}