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/*
This file is part of GNUnet.
(C) 2012, 2013 Christian Grothoff (and other contributing authors)
GNUnet 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, or (at your
option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
package org.gnunet.voting;
import com.google.common.base.Strings;
import org.gnunet.identity.Identity;
import org.gnunet.identity.IdentityCallback;
import org.gnunet.util.AbsoluteTime;
import org.gnunet.util.Configuration;
import org.gnunet.util.Program;
import org.gnunet.util.crypto.EcdsaPublicKey;
import org.gnunet.util.getopt.Argument;
import org.gnunet.util.getopt.ArgumentAction;
/**
* Tool to create group certificates.
*/
public class CertifyGroupTool extends Program {
@Argument(
shortname = "e",
longname = "ego",
action = ArgumentAction.STORE_STRING,
argumentName = "EGONAME",
description = "name of the identity ego to use for signing")
public String egoName = null;
@Argument(
shortname = "m",
longname = "member",
action = ArgumentAction.STORE_STRING,
argumentName = "KEY",
description = "key to certify membership for")
String memberPubKeyString;
@Argument(
shortname = "g",
longname = "group",
action = ArgumentAction.STORE_STRING,
argumentName = "NAME",
description = "group to certify membership of key for")
String groupName;
@Argument(
shortname = "x",
longname = "expire",
action = ArgumentAction.STORE_STRING,
argumentName = "DATE",
description = "expiration date, in local time")
String expirationDate;
@Override
protected String makeHelpText() {
return "gnunet-ballot-group-certify [OPTIONS]...\n" +
"Create a certificate attesting group membership for a given key.\n" +
"The resulting certificate file written to standard output.";
}
public static void main(String args[]) {
CertifyGroupTool tool = new CertifyGroupTool();
int ret = tool.start(args);
System.exit(ret);
}
private void certify(Identity.Ego ego, EcdsaPublicKey memberPubKey, AbsoluteTime expiration) {
GroupCert groupCert = GroupCert.create(memberPubKey, groupName, ego.getPrivateKey(),
ego.getPublicKey(), expiration);
Configuration cfg = new Configuration();
groupCert.writeGroupCertConfig(cfg);
System.out.println(cfg.serialize());
}
@Override
protected void run() {
if (Strings.isNullOrEmpty(egoName)) {
System.err.println("no ego name given");
setReturnValue(1);
return;
}
if (null == memberPubKeyString) {
System.err.println("no member pubkey given");
setReturnValue(1);
return;
}
if (Strings.isNullOrEmpty(groupName)) {
System.err.println("no group identifier given");
setReturnValue(1);
return;
}
final EcdsaPublicKey memberPubKey = EcdsaPublicKey.fromString(memberPubKeyString);
if (null == memberPubKey) {
System.err.println("not a valid pubkey: '" + memberPubKeyString + "'");
setReturnValue(1);
return;
}
final AbsoluteTime expiration;
if (null == expirationDate) {
expiration = AbsoluteTime.FOREVER;
} else {
expiration = AbsoluteTime.fromString(expirationDate);
if (null == expiration) {
System.err.println("invalid expiration date");
setReturnValue(1);
return;
}
}
Identity.lookup(getConfiguration(), egoName, new IdentityCallback() {
@Override
public void onEgo(Identity.Ego ego) {
certify(ego, memberPubKey, expiration);
}
@Override
public void onError(String errorMessage) {
System.err.println("can't retrieve ego: " + errorMessage);
setReturnValue(2);
}
});
}
}
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