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FingerprintStrategy.java
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FingerprintStrategy.java
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/*
*
* © 2022 Synopsys, Inc. All rights reserved worldwide.
*
* 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.secdec.codedx.security;
import com.secdec.codedx.util.HashUtil;
import java.security.cert.Certificate;
import java.security.cert.CertificateEncodingException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.logging.Logger;
public class FingerprintStrategy implements InvalidCertificateStrategy {
private String fingerprint;
private final static Logger logger = Logger.getLogger(FingerprintStrategy.class.getName());
public FingerprintStrategy(String fingerprint) {
this.fingerprint = fingerprint;
if (fingerprint == null) {
this.fingerprint = "";
}
}
public CertificateAcceptance checkAcceptance(Certificate genericCert, CertificateException certError) {
if (genericCert instanceof X509Certificate) {
X509Certificate cert = (X509Certificate) genericCert;
try {
String certFingerprint = HashUtil.toHexString(HashUtil.getSHA1(cert.getEncoded()));
logger.info("Certificate fingerprint: " + certFingerprint.toUpperCase());
logger.info("User-entered fingerprint: " + fingerprint.toUpperCase());
if (certFingerprint.toUpperCase().equals(fingerprint.toUpperCase())) {
return CertificateAcceptance.ACCEPT_PERMANENTLY;
}
} catch (CertificateEncodingException exception) {
logger.warning("Problem reading certificate: " + exception);
exception.printStackTrace();
}
} else {
logger.warning("Certificate presented was not X509: " + genericCert);
}
return CertificateAcceptance.REJECT;
}
}