98 lines
3.3 KiB
Java
98 lines
3.3 KiB
Java
// SPDX-FileCopyrightText: 2021 Paul Schaub <vanitasvitae@fsfe.org>
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//
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// SPDX-License-Identifier: Apache-2.0
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package org.pgpainless.sop;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import org.bouncycastle.openpgp.PGPException;
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import org.bouncycastle.openpgp.PGPPublicKeyRingCollection;
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import org.bouncycastle.openpgp.PGPSignature;
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import org.bouncycastle.util.io.Streams;
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import org.pgpainless.PGPainless;
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import org.pgpainless.decryption_verification.ConsumerOptions;
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import org.pgpainless.decryption_verification.DecryptionStream;
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import org.pgpainless.decryption_verification.OpenPgpMetadata;
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import org.pgpainless.key.SubkeyIdentifier;
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import sop.Verification;
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import sop.exception.SOPGPException;
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import sop.operation.Verify;
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public class VerifyImpl implements Verify {
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private final ConsumerOptions options = new ConsumerOptions();
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@Override
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public Verify notBefore(Date timestamp) throws SOPGPException.UnsupportedOption {
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options.verifyNotBefore(timestamp);
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return this;
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}
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@Override
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public Verify notAfter(Date timestamp) throws SOPGPException.UnsupportedOption {
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options.verifyNotAfter(timestamp);
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return this;
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}
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@Override
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public Verify cert(InputStream cert) throws SOPGPException.BadData {
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PGPPublicKeyRingCollection certificates;
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try {
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certificates = PGPainless.readKeyRing().publicKeyRingCollection(cert);
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} catch (IOException | PGPException e) {
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throw new SOPGPException.BadData(e);
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}
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options.addVerificationCerts(certificates);
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return this;
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}
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@Override
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public VerifyImpl signatures(InputStream signatures) throws SOPGPException.BadData {
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try {
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options.addVerificationOfDetachedSignatures(signatures);
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} catch (IOException | PGPException e) {
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throw new SOPGPException.BadData(e);
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}
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return this;
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}
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@Override
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public List<Verification> data(InputStream data) throws IOException, SOPGPException.NoSignature, SOPGPException.BadData {
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DecryptionStream decryptionStream;
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try {
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decryptionStream = PGPainless.decryptAndOrVerify()
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.onInputStream(data)
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.withOptions(options);
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Streams.drain(decryptionStream);
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decryptionStream.close();
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OpenPgpMetadata metadata = decryptionStream.getResult();
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List<Verification> verificationList = new ArrayList<>();
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for (SubkeyIdentifier verifiedSigningKey : metadata.getVerifiedSignatures().keySet()) {
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PGPSignature signature = metadata.getVerifiedSignatures().get(verifiedSigningKey);
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verificationList.add(new Verification(
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signature.getCreationTime(),
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verifiedSigningKey.getSubkeyFingerprint().toString(),
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verifiedSigningKey.getPrimaryKeyFingerprint().toString()));
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}
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if (!options.getCertificates().isEmpty()) {
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if (verificationList.isEmpty()) {
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throw new SOPGPException.NoSignature();
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}
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}
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return verificationList;
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} catch (PGPException e) {
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throw new SOPGPException.BadData(e);
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}
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}
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}
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