001// SPDX-FileCopyrightText: 2021 Paul Schaub <vanitasvitae@fsfe.org>
002//
003// SPDX-License-Identifier: Apache-2.0
004
005package org.pgpainless.exception;
006
007import java.util.Map;
008
009import org.bouncycastle.openpgp.PGPException;
010import org.bouncycastle.openpgp.PGPSignature;
011import org.pgpainless.algorithm.SignatureType;
012
013public class SignatureValidationException extends PGPException {
014
015    public SignatureValidationException(String message) {
016        super(message);
017    }
018
019    public SignatureValidationException(String message, Exception underlying) {
020        super(message, underlying);
021    }
022
023    public SignatureValidationException(String message, Map<PGPSignature, Exception> rejections) {
024        super(message + ": " + exceptionMapToString(rejections));
025    }
026
027    private static String exceptionMapToString(Map<PGPSignature, Exception> rejections) {
028        StringBuilder sb = new StringBuilder();
029        sb.append(rejections.size()).append(" rejected signatures:\n");
030        for (PGPSignature signature : rejections.keySet()) {
031            sb.append(SignatureType.valueOf(signature.getSignatureType())).append(' ')
032                    .append(signature.getCreationTime()).append(": ")
033                    .append(rejections.get(signature).getMessage()).append('\n');
034        }
035        return sb.toString();
036    }
037}