pgpainless/pgpainless-sop/src/main/java/org/pgpainless/sop/InlineVerifyImpl.java

100 lines
3.7 KiB
Java

// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.sop;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.bouncycastle.openpgp.PGPException;
import org.bouncycastle.openpgp.PGPPublicKeyRingCollection;
import org.bouncycastle.util.io.Streams;
import org.pgpainless.PGPainless;
import org.pgpainless.decryption_verification.ConsumerOptions;
import org.pgpainless.decryption_verification.DecryptionStream;
import org.pgpainless.decryption_verification.OpenPgpMetadata;
import org.pgpainless.decryption_verification.SignatureVerification;
import sop.ReadyWithResult;
import sop.Verification;
import sop.exception.SOPGPException;
import sop.operation.InlineVerify;
public class InlineVerifyImpl implements InlineVerify {
private final ConsumerOptions options = ConsumerOptions.get();
@Override
public InlineVerify notBefore(Date timestamp) throws SOPGPException.UnsupportedOption {
options.verifyNotBefore(timestamp);
return this;
}
@Override
public InlineVerify notAfter(Date timestamp) throws SOPGPException.UnsupportedOption {
options.verifyNotAfter(timestamp);
return this;
}
@Override
public InlineVerify cert(InputStream cert) throws SOPGPException.BadData {
PGPPublicKeyRingCollection certificates;
try {
certificates = PGPainless.readKeyRing().publicKeyRingCollection(cert);
} catch (IOException | PGPException e) {
throw new SOPGPException.BadData(e);
}
options.addVerificationCerts(certificates);
return this;
}
@Override
public ReadyWithResult<List<Verification>> data(InputStream data) throws IOException, SOPGPException.NoSignature, SOPGPException.BadData {
return new ReadyWithResult<List<Verification>>() {
@Override
public List<Verification> writeTo(OutputStream outputStream) throws IOException, SOPGPException.NoSignature {
DecryptionStream decryptionStream;
try {
decryptionStream = PGPainless.decryptAndOrVerify()
.onInputStream(data)
.withOptions(options);
Streams.pipeAll(decryptionStream, outputStream);
decryptionStream.close();
OpenPgpMetadata metadata = decryptionStream.getResult();
List<Verification> verificationList = new ArrayList<>();
List<SignatureVerification> verifications = metadata.isCleartextSigned() ?
metadata.getVerifiedDetachedSignatures() :
metadata.getVerifiedInbandSignatures();
for (SignatureVerification signatureVerification : verifications) {
verificationList.add(map(signatureVerification));
}
if (!options.getCertificates().isEmpty()) {
if (verificationList.isEmpty()) {
throw new SOPGPException.NoSignature();
}
}
return verificationList;
} catch (PGPException e) {
throw new SOPGPException.BadData(e);
}
}
};
}
private Verification map(SignatureVerification sigVerification) {
return new Verification(sigVerification.getSignature().getCreationTime(),
sigVerification.getSigningKey().getSubkeyFingerprint().toString(),
sigVerification.getSigningKey().getPrimaryKeyFingerprint().toString());
}
}