45 lines
1.5 KiB
Java
45 lines
1.5 KiB
Java
package de.vanitasvitae.crypto.pgpainless;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Set;
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import org.bouncycastle.openpgp.PGPPublicKey;
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import org.bouncycastle.openpgp.PGPPublicKeyRing;
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import org.bouncycastle.openpgp.PGPPublicKeyRingCollection;
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public abstract class KeyFilter {
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public Set<Long> filter(Set<Long> initialIdSet, PGPPublicKeyRingCollection collection) {
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Set<PGPPublicKeyRing> rings = new HashSet<>();
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for (Iterator<PGPPublicKeyRing> i = collection.getKeyRings(); i.hasNext();) {
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rings.add(i.next());
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}
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return filter(initialIdSet, rings, false);
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}
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public Set<Long> filter(Set<Long> initialIdSet, Set<PGPPublicKeyRing> rings, boolean boolToAvoidSameMethodErasure) {
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Set<PGPPublicKey> keys = new HashSet<>();
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for (PGPPublicKeyRing ring : rings) {
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for (Iterator<PGPPublicKey> i = ring.getPublicKeys(); i.hasNext();) {
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keys.add(i.next());
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}
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}
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return filter(initialIdSet, keys);
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}
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public Set<Long> filter(Set<Long> initialIdSet, Set<PGPPublicKey> keys) {
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Set<Long> filteredIds = new HashSet<>();
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for (Long id : initialIdSet) {
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for (PGPPublicKey key : keys) {
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if (key.getKeyID() == id && filter(key)) {
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filteredIds.add(id);
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}
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}
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}
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return filteredIds;
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}
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public abstract boolean filter(PGPPublicKey key);
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}
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