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Code Issues Releases Wiki Activity

Make DecryptionStream.getMetadata() first-class, deprecate getResult()

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This commit is contained in:
Paul Schaub 2022-11-16 15:32:15 +01:00
parent e976cc6dd2
commit 3023d532e3
4 changed files with 46 additions and 73 deletions
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39
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/CloseForResultInputStream.java
View file

@ -1,39 +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;
public abstract class CloseForResultInputStream extends InputStream {
protected final OpenPgpMetadata.Builder resultBuilder;
private boolean isClosed = false;
public CloseForResultInputStream(@Nonnull OpenPgpMetadata.Builder resultBuilder) {
this.resultBuilder = resultBuilder;
}
@Override
public void close() throws IOException {
this.isClosed = true;
}
/**
* Return the result of the decryption.
* The result contains metadata about the decryption, such as signatures, used keys and algorithms, as well as information
* about the decrypted file/stream.
*
* Can only be obtained once the stream got successfully closed ({@link #close()}).
* @return metadata
*/
public OpenPgpMetadata getResult() {
if (!isClosed) {
throw new IllegalStateException("Stream MUST be closed before the result can be accessed.");
}
return resultBuilder.build();
}
}

12
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/DecryptionStream.java
View file

@ -4,10 +4,14 @@
package org.pgpainless.decryption_verification;
import javax.annotation.Nonnull;
import java.io.InputStream;
public abstract class DecryptionStream extends CloseForResultInputStream {
public DecryptionStream(@Nonnull OpenPgpMetadata.Builder resultBuilder) {
super(resultBuilder);
public abstract class DecryptionStream extends InputStream {
public abstract MessageMetadata getMetadata();
@Deprecated
public OpenPgpMetadata getResult() {
return getMetadata().toLegacyMetadata();
}
}

35
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/MessageMetadata.java
View file

@ -300,9 +300,16 @@ public class MessageMetadata {
public static class Message extends Layer {
protected boolean cleartextSigned;
public Message() {
super(0);
}
public boolean isCleartextSigned() {
return cleartextSigned;
}
}
public static class LiteralData implements Nested {
@ -453,4 +460,32 @@ public class MessageMetadata {
abstract O getProperty(Layer last);
}
public OpenPgpMetadata toLegacyMetadata() {
OpenPgpMetadata.Builder resultBuilder = OpenPgpMetadata.getBuilder();
resultBuilder.setCompressionAlgorithm(getCompressionAlgorithm());
resultBuilder.setModificationDate(getModificationDate());
resultBuilder.setFileName(getFilename());
resultBuilder.setFileEncoding(getFormat());
resultBuilder.setSessionKey(getSessionKey());
resultBuilder.setDecryptionKey(getDecryptionKey());
for (SignatureVerification accepted : getVerifiedDetachedSignatures()) {
resultBuilder.addVerifiedDetachedSignature(accepted);
}
for (SignatureVerification.Failure rejected : getRejectedDetachedSignatures()) {
resultBuilder.addInvalidDetachedSignature(rejected.getSignatureVerification(), rejected.getValidationException());
}
for (SignatureVerification accepted : getVerifiedInlineSignatures()) {
resultBuilder.addVerifiedInbandSignature(accepted);
}
for (SignatureVerification.Failure rejected : getRejectedInlineSignatures()) {
resultBuilder.addInvalidInbandSignature(rejected.getSignatureVerification(), rejected.getValidationException());
}
if (message.isCleartextSigned()) {
resultBuilder.setCleartextSigned();
}
return resultBuilder.build();
}
}

33
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/OpenPgpMessageInputStream.java
View file

@ -156,6 +156,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
if (openPgpIn.isAsciiArmored()) {
ArmoredInputStream armorIn = ArmoredInputStreamFactory.get(openPgpIn);
if (armorIn.isClearText()) {
((MessageMetadata.Message) metadata).cleartextSigned = true;
return new OpenPgpMessageInputStream(Type.cleartext_signed,
armorIn, options, metadata, policy);
} else {
@ -173,7 +174,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
@Nonnull MessageMetadata.Layer metadata,
@Nonnull Policy policy)
throws PGPException, IOException {
super(OpenPgpMetadata.getBuilder());
super();
this.policy = policy;
this.options = options;
@ -203,7 +204,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
@Nonnull ConsumerOptions options,
@Nonnull MessageMetadata.Layer metadata,
@Nonnull Policy policy) throws PGPException, IOException {
super(OpenPgpMetadata.getBuilder());
super();
this.policy = policy;
this.options = options;
this.metadata = metadata;
@ -226,7 +227,6 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
// Cleartext Signature Framework (probably signed message)
case cleartext_signed:
resultBuilder.setCleartextSigned();
MultiPassStrategy multiPassStrategy = options.getMultiPassStrategy();
PGPSignatureList detachedSignatures = ClearsignedMessageUtil
.detachSignaturesFromInbandClearsignedMessage(
@ -799,33 +799,6 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
return new MessageMetadata((MessageMetadata.Message) metadata);
}
@Override
public OpenPgpMetadata getResult() {
MessageMetadata m = getMetadata();
resultBuilder.setCompressionAlgorithm(m.getCompressionAlgorithm());
resultBuilder.setModificationDate(m.getModificationDate());
resultBuilder.setFileName(m.getFilename());
resultBuilder.setFileEncoding(m.getFormat());
resultBuilder.setSessionKey(m.getSessionKey());
resultBuilder.setDecryptionKey(m.getDecryptionKey());
for (SignatureVerification accepted : m.getVerifiedDetachedSignatures()) {
resultBuilder.addVerifiedDetachedSignature(accepted);
}
for (SignatureVerification.Failure rejected : m.getRejectedDetachedSignatures()) {
resultBuilder.addInvalidDetachedSignature(rejected.getSignatureVerification(), rejected.getValidationException());
}
for (SignatureVerification accepted : m.getVerifiedInlineSignatures()) {
resultBuilder.addVerifiedInbandSignature(accepted);
}
for (SignatureVerification.Failure rejected : m.getRejectedInlineSignatures()) {
resultBuilder.addInvalidInbandSignature(rejected.getSignatureVerification(), rejected.getValidationException());
}
return resultBuilder.build();
}
private static class SortedESKs {
private final List<PGPPBEEncryptedData> skesks = new ArrayList<>();