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Code Issues Releases Wiki Activity

Kotlin conversion: IntegrityProtectedInputStream

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This commit is contained in:
Paul Schaub 2023-09-16 13:09:10 +02:00
parent 0271bae9b4
commit 3cbf04cff2
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
2 changed files with 42 additions and 60 deletions
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60
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/IntegrityProtectedInputStream.java
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@ -1,60 +0,0 @@
// SPDX-FileCopyrightText: 2021 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.PGPEncryptedData;
import org.bouncycastle.openpgp.PGPException;
import org.pgpainless.exception.ModificationDetectionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class IntegrityProtectedInputStream extends InputStream {
private static final Logger LOGGER = LoggerFactory.getLogger(IntegrityProtectedInputStream.class);
private final InputStream inputStream;
private final PGPEncryptedData encryptedData;
private final ConsumerOptions options;
private boolean closed = false;
public IntegrityProtectedInputStream(InputStream inputStream, PGPEncryptedData encryptedData, ConsumerOptions options) {
this.inputStream = inputStream;
this.encryptedData = encryptedData;
this.options = options;
}
@Override
public int read() throws IOException {
return inputStream.read();
}
@Override
public int read(@Nonnull byte[] b, int offset, int length) throws IOException {
return inputStream.read(b, offset, length);
}
@Override
public void close() throws IOException {
if (closed) {
return;
}
closed = true;
if (encryptedData.isIntegrityProtected() && !options.isIgnoreMDCErrors()) {
try {
if (!encryptedData.verify()) {
throw new ModificationDetectionException();
}
LOGGER.debug("Integrity Protection check passed");
} catch (PGPException e) {
throw new IOException("Data appears to not be integrity protected.", e);
}
}
}
}

42
pgpainless-core/src/main/kotlin/org/pgpainless/decryption_verification/IntegrityProtectedInputStream.kt Normal file
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@ -0,0 +1,42 @@
// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.decryption_verification
import org.bouncycastle.openpgp.PGPEncryptedData
import org.bouncycastle.openpgp.PGPException
import org.pgpainless.exception.ModificationDetectionException
import org.slf4j.Logger
import org.slf4j.LoggerFactory
import java.io.IOException
import java.io.InputStream
class IntegrityProtectedInputStream(
private val inputStream: InputStream,
private val encryptedData: PGPEncryptedData,
private val options: ConsumerOptions
) : InputStream() {
private var closed: Boolean = false
override fun read() = inputStream.read()
override fun read(b: ByteArray, off: Int, len: Int) = inputStream.read(b, off, len)
override fun close() {
if (closed) return
closed = true
if (encryptedData.isIntegrityProtected && !options.isIgnoreMDCErrors()) {
try {
if (!encryptedData.verify()) throw ModificationDetectionException()
LOGGER.debug("Integrity Protection check passed.")
} catch (e : PGPException) {
throw IOException("Data appears to not be integrity protected.", e)
}
}
}
companion object {
@JvmStatic
val LOGGER: Logger = LoggerFactory.getLogger(IntegrityProtectedInputStream::class.java)
}
}