pgpainless/pgpainless-core/src/main/java/org/pgpainless/decryption_verification/DecryptionBuilder.java

43 lines
1.3 KiB
Java

// SPDX-FileCopyrightText: 2018 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.decryption_verification;
import java.io.IOException;
import java.io.InputStream;
import javax.annotation.Nonnull;
import org.bouncycastle.openpgp.PGPException;
/**
* Builder class that takes an {@link InputStream} of ciphertext (or plaintext signed data)
* and combines it with a configured {@link ConsumerOptions} object to form a {@link DecryptionStream} which
* can be used to decrypt an OpenPGP message or verify signatures.
*/
public class DecryptionBuilder implements DecryptionBuilderInterface {
@Override
public DecryptWith onInputStream(@Nonnull InputStream inputStream) {
return new DecryptWithImpl(inputStream);
}
static class DecryptWithImpl implements DecryptWith {
private final InputStream inputStream;
DecryptWithImpl(InputStream inputStream) {
this.inputStream = inputStream;
}
@Override
public DecryptionStream withOptions(ConsumerOptions consumerOptions) throws PGPException, IOException {
if (consumerOptions == null) {
throw new IllegalArgumentException("Consumer options cannot be null.");
}
return OpenPgpMessageInputStream.create(inputStream, consumerOptions);
}
}
}