mirror of
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150 lines
5.1 KiB
Java
150 lines
5.1 KiB
Java
/**
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*
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* Copyright 2018 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.jivesoftware.smackx.ox.store.filebased;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.Date;
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import java.util.Map;
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import org.jivesoftware.smack.util.CloseableUtil;
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import org.jivesoftware.smack.util.FileUtils;
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import org.jivesoftware.smack.util.Objects;
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import org.jivesoftware.smackx.ox.store.abstr.AbstractOpenPgpKeyStore;
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import org.jivesoftware.smackx.ox.store.definition.OpenPgpKeyStore;
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import org.bouncycastle.openpgp.PGPException;
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import org.bouncycastle.openpgp.PGPPublicKeyRingCollection;
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import org.bouncycastle.openpgp.PGPSecretKeyRingCollection;
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import org.jxmpp.jid.BareJid;
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import org.pgpainless.PGPainless;
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import org.pgpainless.key.OpenPgpV4Fingerprint;
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/**
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* This class is an implementation of the {@link OpenPgpKeyStore}, which stores keys in a file structure.
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* The keys are stored in the following directory structure:
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*
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* <pre>
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* {@code
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* <basePath>/
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* <userjid@server.tld>/
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* pubring.pkr // public keys of the user/contact
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* secring.pkr // secret keys of the user
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* fetchDates.list // date of the last time we fetched the users keys
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* }
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* </pre>
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*/
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public class FileBasedOpenPgpKeyStore extends AbstractOpenPgpKeyStore {
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private static final String PUB_RING = "pubring.pkr";
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private static final String SEC_RING = "secring.skr";
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private static final String FETCH_DATES = "fetchDates.list";
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private final File basePath;
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public FileBasedOpenPgpKeyStore(File basePath) {
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this.basePath = Objects.requireNonNull(basePath);
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}
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@Override
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public void writePublicKeysOf(BareJid owner, PGPPublicKeyRingCollection publicKeys) throws IOException {
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File file = getPublicKeyRingPath(owner);
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if (publicKeys == null) {
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FileUtils.maybeDeleteFileOrThrow(file);
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return;
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}
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OutputStream outputStream = null;
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try {
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outputStream = FileUtils.prepareFileOutputStream(file);
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publicKeys.encode(outputStream);
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} finally {
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CloseableUtil.maybeClose(outputStream, LOGGER);
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}
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}
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@Override
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public void writeSecretKeysOf(BareJid owner, PGPSecretKeyRingCollection secretKeys) throws IOException {
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File file = getSecretKeyRingPath(owner);
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if (secretKeys == null) {
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FileUtils.maybeDeleteFileOrThrow(file);
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return;
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}
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OutputStream outputStream = null;
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try {
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outputStream = FileUtils.prepareFileOutputStream(file);
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secretKeys.encode(outputStream);
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} finally {
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CloseableUtil.maybeClose(outputStream, LOGGER);
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}
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}
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@Override
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public PGPPublicKeyRingCollection readPublicKeysOf(BareJid owner)
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throws IOException, PGPException {
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File file = getPublicKeyRingPath(owner);
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if (!file.exists()) {
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return null;
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}
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FileInputStream inputStream = FileUtils.prepareFileInputStream(file);
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PGPPublicKeyRingCollection collection = PGPainless.readKeyRing().publicKeyRingCollection(inputStream);
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inputStream.close();
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return collection;
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}
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@Override
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public PGPSecretKeyRingCollection readSecretKeysOf(BareJid owner) throws IOException, PGPException {
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File file = getSecretKeyRingPath(owner);
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if (!file.exists()) {
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return null;
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}
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FileInputStream inputStream = FileUtils.prepareFileInputStream(file);
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PGPSecretKeyRingCollection collection = PGPainless.readKeyRing().secretKeyRingCollection(inputStream);
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inputStream.close();
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return collection;
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}
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@Override
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protected Map<OpenPgpV4Fingerprint, Date> readKeyFetchDates(BareJid owner) throws IOException {
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return FileBasedOpenPgpMetadataStore.readFingerprintsAndDates(getFetchDatesPath(owner));
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}
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@Override
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protected void writeKeyFetchDates(BareJid owner, Map<OpenPgpV4Fingerprint, Date> dates) throws IOException {
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FileBasedOpenPgpMetadataStore.writeFingerprintsAndDates(dates, getFetchDatesPath(owner));
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}
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private File getPublicKeyRingPath(BareJid jid) {
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return new File(FileBasedOpenPgpStore.getContactsPath(basePath, jid), PUB_RING);
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}
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private File getSecretKeyRingPath(BareJid jid) {
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return new File(FileBasedOpenPgpStore.getContactsPath(basePath, jid), SEC_RING);
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}
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private File getFetchDatesPath(BareJid jid) {
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return new File(FileBasedOpenPgpStore.getContactsPath(basePath, jid), FETCH_DATES);
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}
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}
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