blob: c8fbe03869f5b09824be040023d43fb7359df294 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// Copyright 2021 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 com.google.gson.Gson;
import com.google.gson.JsonElement;
import com.google.json.JsonSanitizer;
public class ValidJsonFuzzer {
private static Gson gson = new Gson();
public static void fuzzerTestOneInput(FuzzedDataProvider data) {
String input = data.consumeRemainingAsString();
String output;
try {
output = JsonSanitizer.sanitize(input, 10);
} catch (ArrayIndexOutOfBoundsException e) {
// ArrayIndexOutOfBoundsException is expected if nesting depth is
// exceeded.
return;
}
// Check that the output is valid JSON. Invalid JSON may crash other parts
// of the application that trust the output of the sanitizer.
try {
Gson gson = new Gson();
gson.fromJson(output, JsonElement.class);
} catch (Exception e) {
throw new FuzzerSecurityIssueLow("Output is invalid JSON", e);
}
}
}
|
