89 lines
3.1 KiB
Java
89 lines
3.1 KiB
Java
/*
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* Copyright (C) 2017 Schürmann & Breitmoser GbR
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.keyimport;
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import java.net.URI;
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import java.net.URISyntaxException;
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import android.os.Parcelable;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import com.google.auto.value.AutoValue;
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@AutoValue
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public abstract class HkpKeyserverAddress implements Parcelable {
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private static final short PORT_DEFAULT = 11371;
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private static final short PORT_DEFAULT_HKPS = 443;
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public abstract String getUrl();
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@Nullable
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public abstract String getOnion();
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public static HkpKeyserverAddress createWithOnionProxy(@NonNull String url, @Nullable String onion) {
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return new AutoValue_HkpKeyserverAddress(url, onion == null ? null : onion.trim());
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}
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public static HkpKeyserverAddress createFromUri(@NonNull String url) {
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return new AutoValue_HkpKeyserverAddress(url, null);
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}
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public URI getUrlURI() throws URISyntaxException {
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return getURI(getUrl());
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}
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public URI getOnionURI() throws URISyntaxException {
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return getOnion() != null ? getURI(getOnion()) : null;
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}
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/**
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* @param keyserverUrl "<code>hostname</code>" (eg. "<code>pool.sks-keyservers.net</code>"), then it will
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* connect using {@link #PORT_DEFAULT}. However, port may be specified after colon
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* ("<code>hostname:port</code>", eg. "<code>p80.pool.sks-keyservers.net:80</code>").
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*/
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private URI getURI(String keyserverUrl) throws URISyntaxException {
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URI originalURI = new URI(keyserverUrl);
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String scheme = originalURI.getScheme();
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if (scheme == null) {
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throw new URISyntaxException("", "scheme null!");
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}
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if (!"http".equalsIgnoreCase(scheme) && !"https".equalsIgnoreCase(scheme)
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&& !"hkp".equalsIgnoreCase(scheme) && !"hkps".equalsIgnoreCase(scheme)) {
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throw new URISyntaxException(scheme, "unsupported scheme!");
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}
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int port = originalURI.getPort();
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if ("hkps".equalsIgnoreCase(scheme)) {
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scheme = "https";
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port = port == -1 ? PORT_DEFAULT_HKPS : port;
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} else if ("hkp".equalsIgnoreCase(scheme)) {
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scheme = "http";
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port = port == -1 ? PORT_DEFAULT : port;
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}
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return new URI(scheme, originalURI.getUserInfo(), originalURI.getHost(), port,
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originalURI.getPath(), originalURI.getQuery(), originalURI.getFragment());
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}
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}
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