84 lines
3.1 KiB
Java
84 lines
3.1 KiB
Java
/*
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* Copyright 2021 Paul Schaub.
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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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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 ByteArrayOutputStream sigOut = new ByteArrayOutputStream();
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@Override
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public Signatures writeTo(OutputStream messageOutputStream) throws SOPGPException.NoSignature, IOException {
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PGPSignatureList signatures = null;
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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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