113 lines
4.6 KiB
Java
113 lines
4.6 KiB
Java
/*
|
|
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package org.sufficientlysecure.keychain.util;
|
|
|
|
import android.content.Context;
|
|
|
|
import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
|
|
import org.sufficientlysecure.keychain.keyimport.Keyserver;
|
|
import org.sufficientlysecure.keychain.keyimport.ParcelableHkpKeyserver;
|
|
import org.sufficientlysecure.keychain.keyimport.ParcelableKeyRing;
|
|
import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
|
|
import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
|
|
import org.sufficientlysecure.keychain.ui.base.CryptoOperationHelper;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.HashSet;
|
|
import java.util.List;
|
|
import java.util.Locale;
|
|
import java.util.Set;
|
|
|
|
public class EmailKeyHelper {
|
|
// TODO: Make this not require a proxy in it's constructor, redesign when it is to be used
|
|
// to import keys, simply use CryptoOperationHelper with this callback
|
|
public abstract class ImportContactKeysCallback
|
|
implements CryptoOperationHelper.Callback<ImportKeyringParcel, ImportKeyResult> {
|
|
|
|
private ArrayList<ParcelableKeyRing> mKeyList;
|
|
private ParcelableHkpKeyserver mKeyserver;
|
|
|
|
public ImportContactKeysCallback(Context context, ParcelableHkpKeyserver keyserver,
|
|
ParcelableProxy proxy) {
|
|
this(context, new ContactHelper(context).getContactMails(), keyserver, proxy);
|
|
}
|
|
|
|
public ImportContactKeysCallback(Context context, List<String> mails,
|
|
ParcelableHkpKeyserver keyserver, ParcelableProxy proxy) {
|
|
Set<ImportKeysListEntry> entries = new HashSet<>();
|
|
for (String mail : mails) {
|
|
entries.addAll(getEmailKeys(context, mail, proxy));
|
|
}
|
|
|
|
// Put them in a list and import
|
|
ArrayList<ParcelableKeyRing> keys = new ArrayList<>(entries.size());
|
|
for (ImportKeysListEntry entry : entries) {
|
|
keys.add(new ParcelableKeyRing(entry.getFingerprintHex(), entry.getKeyIdHex(), null,
|
|
null));
|
|
}
|
|
mKeyList = keys;
|
|
mKeyserver = keyserver;
|
|
}
|
|
|
|
@Override
|
|
public ImportKeyringParcel createOperationInput() {
|
|
return new ImportKeyringParcel(mKeyList, mKeyserver);
|
|
}
|
|
}
|
|
|
|
public static Set<ImportKeysListEntry> getEmailKeys(Context context, String mail,
|
|
ParcelableProxy proxy) {
|
|
Set<ImportKeysListEntry> keys = new HashSet<>();
|
|
|
|
// Try _hkp._tcp SRV record first
|
|
String[] mailparts = mail.split("@");
|
|
if (mailparts.length == 2) {
|
|
ParcelableHkpKeyserver hkp = ParcelableHkpKeyserver.resolve(mailparts[1]);
|
|
if (hkp != null) {
|
|
keys.addAll(getEmailKeys(mail, hkp, proxy));
|
|
}
|
|
}
|
|
|
|
if (keys.isEmpty()) {
|
|
// Most users don't have the SRV record, so ask a default server as well
|
|
ParcelableHkpKeyserver server = Preferences.getPreferences(context).getPreferredKeyserver();
|
|
if (server != null) {
|
|
keys.addAll(getEmailKeys(mail, server, proxy));
|
|
}
|
|
}
|
|
return keys;
|
|
}
|
|
|
|
public static List<ImportKeysListEntry> getEmailKeys(String mail, Keyserver keyServer,
|
|
ParcelableProxy proxy) {
|
|
Set<ImportKeysListEntry> keys = new HashSet<>();
|
|
try {
|
|
for (ImportKeysListEntry key : keyServer.search(mail, proxy)) {
|
|
if (key.isRevokedOrExpiredOrInsecure()) continue;
|
|
for (String userId : key.getUserIds()) {
|
|
if (userId.toLowerCase().contains(mail.toLowerCase(Locale.ENGLISH))) {
|
|
keys.add(key);
|
|
}
|
|
}
|
|
}
|
|
} catch (Keyserver.CloudSearchFailureException ignored) {
|
|
}
|
|
return new ArrayList<>(keys);
|
|
}
|
|
}
|