mirror of https://github.com/google/oss-fuzz.git
70 lines
2.6 KiB
Java
70 lines
2.6 KiB
Java
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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////////////////////////////////////////////////////////////////////////////////
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import com.code_intelligence.jazzer.api.FuzzedDataProvider;
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import com.code_intelligence.jazzer.api.FuzzerSecurityIssueHigh;
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import java.lang.StringBuilder;
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import java.nio.ByteBuffer;
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import java.nio.charset.Charset;
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import java.io.IOException;
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import java.util.Arrays;
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import java.io.UnsupportedEncodingException;
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import org.apache.tomcat.util.buf.UEncoder;
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import org.apache.tomcat.util.buf.UEncoder.SafeCharsSet;
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import org.apache.tomcat.util.buf.UDecoder;
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import org.apache.tomcat.util.buf.CharChunk;
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import org.apache.catalina.util.URLEncoder;
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import java.nio.charset.StandardCharsets;
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import java.math.BigInteger;
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// import javax.xml.bind.DatatypeConverter;
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public class EnDecodeFuzzer {
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static String [] encodings = {
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"US-ASCII",
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"ISO-8859-1",
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"UTF-8",
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"UTF-16BE",
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"UTF-16LE",
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// "UTF-16"
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};
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public static void fuzzerTestOneInput(FuzzedDataProvider data) {
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int num = data.consumeInt(0, encodings.length - 1);
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String originalData = data.consumeRemainingAsAsciiString();
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URLEncoder ue = new URLEncoder();
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String enc = encodings[num];
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String encodedData = ue.encode(originalData, Charset.forName(enc));
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String decodedData = UDecoder.URLDecode(encodedData, Charset.forName(enc));
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// try {
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// System.out.println("Encoding: " + enc);
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// System.out.println("Original: " + toHexadecimal(originalData, enc));
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// System.out.println("Decoded: " + toHexadecimal(decodedData, enc));
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// } catch (Exception e) {
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// throw new FuzzerSecurityIssueHigh("print error");
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// }
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assert decodedData.equals(originalData) : new FuzzerSecurityIssueHigh("Encoding decoding inconsistent");
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}
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// public static String toHexadecimal(String text, String enc) throws UnsupportedEncodingException
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// {
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// byte[] myBytes = text.getBytes(enc);
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// return DatatypeConverter.printHexBinary(myBytes);
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// }
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}
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