oss-fuzz/projects/jsonp-api/CreateJsonFuzzer.java

65 lines
2.5 KiB
Java

// Copyright 2023 Google LLC
//
// 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.
//
import com.code_intelligence.jazzer.api.FuzzedDataProvider;
import com.code_intelligence.jazzer.api.FuzzerSecurityIssueLow;
import ee.jakarta.tck.jsonp.common.JSONP_Util;
import jakarta.json.*;
import jakarta.json.stream.JsonParsingException;
import java.io.PrintStream;
import java.io.OutputStream;
public class CreateJsonFuzzer {
private static final PrintStream noopStream = new PrintStream(new OutputStream() {
@Override
public void write(int b) {}
});
public static void fuzzerInitialize() {
System.setErr(noopStream);
System.setOut(noopStream);
}
public static void fuzzerTestOneInput(FuzzedDataProvider data) {
try {
testJsonCreators(data);
JsonValue.ValueType.valueOf(data.consumeString(100));
} catch (IllegalArgumentException | JsonParsingException e) {}
}
public static void testJsonCreators(FuzzedDataProvider data) {
JsonArray jsonArray = JSONP_Util.createJsonArrayFromString(data.consumeString(200));
JSONP_Util.toStringJsonArray(jsonArray);
JsonObject jsonObject = JSONP_Util.createJsonObjectFromString(data.consumeString(200));
JSONP_Util.toStringJsonObject(jsonObject);
String inStr = data.consumeAsciiString(200);
JsonString jsonString = JSONP_Util.createJsonString(inStr);
String outString = JSONP_Util.toStringJsonString(jsonString);
String intJsonStr = "\"" + inStr + "\"";
if (!intJsonStr.equals(outString)) {
throw new FuzzerSecurityIssueLow("JsonString: " + intJsonStr + " Expected. Got " + outString);
}
int inNumber = data.consumeInt();
JsonNumber jsonNumber = JSONP_Util.createJsonNumber(inNumber);
String outNumber = JSONP_Util.toStringJsonNumber(jsonNumber);
if (!Integer.toString(inNumber).equals(outNumber)) {
throw new FuzzerSecurityIssueLow("JsonNumber: " + inNumber + " Expected. Got " + outNumber);
}
}
}