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50 lines
1.7 KiB
Java
50 lines
1.7 KiB
Java
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/*
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* Copyright 2021 Paul Schaub.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.pgpainless.signature;
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import java.util.Comparator;
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import org.bouncycastle.openpgp.PGPSignature;
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public class SignatureValidityComparator implements Comparator<PGPSignature> {
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private final SignatureCreationDateComparator.Order order;
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private final SignatureCreationDateComparator creationDateComparator;
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public SignatureValidityComparator() {
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this(SignatureCreationDateComparator.DEFAULT_ORDER);
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}
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public SignatureValidityComparator(SignatureCreationDateComparator.Order order) {
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this.order = order;
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this.creationDateComparator = new SignatureCreationDateComparator(order);
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}
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@Override
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public int compare(PGPSignature one, PGPSignature two) {
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int compareByCreationTime = creationDateComparator.compare(one, two);
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boolean oneIsHard = SignatureUtils.isHardRevocation(one);
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boolean twoIsHard = SignatureUtils.isHardRevocation(two);
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// both have same "hardness", so compare creation time
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if (oneIsHard == twoIsHard) {
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return compareByCreationTime;
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}
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// favor the "harder" signature
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return oneIsHard ? -1 : 1;
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}
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}
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