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Kotlin conversion: DecryptionBuilder

This commit is contained in:
Paul Schaub 2023-08-30 13:59:34 +02:00
parent 4a19e6ca20
commit 9988ba9940
Signed by: vanitasvitae
GPG Key ID: 62BEE9264BF17311
4 changed files with 60 additions and 78 deletions
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42
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/DecryptionBuilder.java
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// 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);
}
}
}

36
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/DecryptionBuilderInterface.java
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// 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;
public interface DecryptionBuilderInterface {
/**
* Create a {@link DecryptionStream} on an {@link InputStream} which contains the encrypted and/or signed data.
*
* @param inputStream encrypted and/or signed data.
* @return api handle
*/
DecryptWith onInputStream(@Nonnull InputStream inputStream);
interface DecryptWith {
/**
* Add options for decryption / signature verification, such as keys, passphrases etc.
*
* @param consumerOptions consumer options
* @return decryption stream
* @throws PGPException in case of an OpenPGP related error
* @throws IOException in case of an IO error
*/
DecryptionStream withOptions(ConsumerOptions consumerOptions) throws PGPException, IOException;
}
}

26
pgpainless-core/src/main/kotlin/org/pgpainless/decryption_verification/DecryptionBuilder.kt Normal file
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// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.decryption_verification
import java.io.InputStream
/**
* Builder class that takes an [InputStream] of ciphertext (or plaintext signed data)
* and combines it with a configured [ConsumerOptions] object to form a [DecryptionStream] which
* can be used to decrypt an OpenPGP message or verify signatures.
*/
class DecryptionBuilder: DecryptionBuilderInterface {
override fun onInputStream(inputStream: InputStream): DecryptionBuilderInterface.DecryptWith {
return DecryptWithImpl(inputStream)
}
class DecryptWithImpl(val inputStream: InputStream): DecryptionBuilderInterface.DecryptWith {
override fun withOptions(consumerOptions: ConsumerOptions): DecryptionStream {
return OpenPgpMessageInputStream.create(inputStream, consumerOptions)
}
}
}

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pgpainless-core/src/main/kotlin/org/pgpainless/decryption_verification/DecryptionBuilderInterface.kt Normal file
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// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.decryption_verification
import org.bouncycastle.openpgp.PGPException
import java.io.IOException
import java.io.InputStream
interface DecryptionBuilderInterface {
/**
* Create a [DecryptionStream] on an [InputStream] which contains the encrypted and/or signed data.
*
* @param inputStream encrypted and/or signed data.
* @return api handle
*/
fun onInputStream(inputStream: InputStream): DecryptWith
interface DecryptWith {
/**
* Add options for decryption / signature verification, such as keys, passphrases etc.
*
* @param consumerOptions consumer options
* @return decryption stream
* @throws PGPException in case of an OpenPGP related error
* @throws IOException in case of an IO error
*/
@Throws(PGPException::class, IOException::class)
fun withOptions(consumerOptions: ConsumerOptions): DecryptionStream
}
}