75 lines
2.6 KiB
Java
75 lines
2.6 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.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import org.bouncycastle.bcpg.ArmoredOutputStream;
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import org.bouncycastle.openpgp.PGPSignature;
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import org.bouncycastle.openpgp.PGPSignatureList;
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import org.bouncycastle.util.io.Streams;
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import org.pgpainless.exception.WrongConsumingMethodException;
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import org.pgpainless.decryption_verification.cleartext_signatures.ClearsignedMessageUtil;
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import org.pgpainless.util.ArmoredOutputStreamFactory;
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import sop.ReadyWithResult;
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import sop.Signatures;
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import sop.exception.SOPGPException;
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import sop.operation.DetachInbandSignatureAndMessage;
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public class DetachInbandSignatureAndMessageImpl implements DetachInbandSignatureAndMessage {
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private boolean armor = true;
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@Override
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public DetachInbandSignatureAndMessage noArmor() {
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this.armor = false;
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return this;
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}
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@Override
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public ReadyWithResult<Signatures> message(InputStream messageInputStream) {
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return new ReadyWithResult<Signatures>() {
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private final ByteArrayOutputStream sigOut = new ByteArrayOutputStream();
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@Override
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public Signatures writeTo(OutputStream messageOutputStream)
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throws SOPGPException.NoSignature, IOException {
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PGPSignatureList signatures;
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try {
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signatures = ClearsignedMessageUtil.detachSignaturesFromInbandClearsignedMessage(messageInputStream, messageOutputStream);
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} catch (WrongConsumingMethodException e) {
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throw new IOException(e);
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}
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if (armor) {
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ArmoredOutputStream armorOut = ArmoredOutputStreamFactory.get(sigOut);
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for (PGPSignature signature : signatures) {
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signature.encode(armorOut);
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}
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armorOut.close();
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} else {
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for (PGPSignature signature : signatures) {
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signature.encode(sigOut);
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}
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}
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return new Signatures() {
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@Override
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public void writeTo(OutputStream signatureOutputStream) throws IOException {
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Streams.pipeAll(new ByteArrayInputStream(sigOut.toByteArray()), signatureOutputStream);
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}
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};
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}
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};
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}
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}
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