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gpggencardkeyinteractor.cpp
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/*
gpggencardkeyinteractor.cpp - Edit Interactor to generate a key on a card
Copyright (C) 2017 by Bundesamt für Sicherheit in der Informationstechnik
Software engineering by Intevation GmbH
This file is part of GPGME++.
GPGME++ is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
GPGME++ 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with GPGME++; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gpggencardkeyinteractor.h"
#include "error.h"
#include <gpgme.h>
using namespace GpgME;
class GpgGenCardKeyInteractor::Private
{
public:
Private() : keysize("2048")
{
}
std::string name, email, backupFileName, expiry, serial, keysize;
bool backup = false;
Algo algo = RSA;
std::string curve;
};
GpgGenCardKeyInteractor::~GpgGenCardKeyInteractor() = default;
GpgGenCardKeyInteractor::GpgGenCardKeyInteractor(const std::string &serial):
d(new Private)
{
d->serial = serial;
}
void GpgGenCardKeyInteractor::setNameUtf8(const std::string &name)
{
d->name = name;
}
void GpgGenCardKeyInteractor::setEmailUtf8(const std::string &email)
{
d->email = email;
}
void GpgGenCardKeyInteractor::setDoBackup(bool value)
{
d->backup = value;
}
void GpgGenCardKeyInteractor::setKeySize(int value)
{
d->keysize = std::to_string(value);
}
void GpgGenCardKeyInteractor::setExpiry(const std::string &timeStr)
{
d->expiry = timeStr;
}
std::string GpgGenCardKeyInteractor::backupFileName() const
{
return d->backupFileName;
}
void GpgGenCardKeyInteractor::setAlgo(Algo algo)
{
d->algo = algo;
}
void GpgGenCardKeyInteractor::setCurve(Curve curve)
{
if (curve == DefaultCurve) {
d->curve.clear();
} else if (curve >= 1 && curve <= LastCurve) {
d->curve = std::to_string(static_cast<int>(curve));
}
}
namespace GpgGenCardKeyInteractor_Private
{
enum {
START = EditInteractor::StartState,
DO_ADMIN,
EXPIRE,
GOT_SERIAL,
COMMAND,
NAME,
EMAIL,
COMMENT,
BACKUP,
REPLACE,
SIZE,
SIZE2,
SIZE3,
BACKUP_KEY_CREATED,
KEY_CREATED,
QUIT,
SAVE,
KEY_ATTR,
KEY_ALGO1,
KEY_ALGO2,
KEY_ALGO3,
KEY_CURVE1,
KEY_CURVE2,
KEY_CURVE3,
ERROR = EditInteractor::ErrorState
};
}
const char *GpgGenCardKeyInteractor::action(Error &err) const
{
using namespace GpgGenCardKeyInteractor_Private;
switch (state()) {
case DO_ADMIN:
return "admin";
case COMMAND:
return "generate";
case KEY_ATTR:
return "key-attr";
case KEY_ALGO1:
case KEY_ALGO2:
case KEY_ALGO3:
return d->algo == RSA ? "1" : "2";
case KEY_CURVE1:
case KEY_CURVE2:
case KEY_CURVE3:
return d->curve.empty() ? "1" : d->curve.c_str(); // default is Curve25519
case NAME:
return d->name.c_str();
case EMAIL:
return d->email.c_str();
case EXPIRE:
return d->expiry.c_str();
case BACKUP:
return d->backup ? "Y" : "N";
case REPLACE:
return "Y";
case SIZE:
case SIZE2:
case SIZE3:
return d->keysize.c_str();
case COMMENT:
return "";
case SAVE:
return "Y";
case QUIT:
return "quit";
case KEY_CREATED:
case START:
case GOT_SERIAL:
case BACKUP_KEY_CREATED:
case ERROR:
return nullptr;
default:
err = Error::fromCode(GPG_ERR_GENERAL);
return nullptr;
}
}
unsigned int GpgGenCardKeyInteractor::nextState(unsigned int status, const char *args, Error &err) const
{
static const Error GENERAL_ERROR = Error::fromCode(GPG_ERR_GENERAL);
static const Error INV_NAME_ERROR = Error::fromCode(GPG_ERR_INV_NAME);
static const Error INV_EMAIL_ERROR = Error::fromCode(GPG_ERR_INV_USER_ID);
static const Error INV_COMMENT_ERROR = Error::fromCode(GPG_ERR_INV_USER_ID);
if (needsNoResponse(status)) {
return state();
}
using namespace GpgGenCardKeyInteractor_Private;
switch (state()) {
case START:
if (status == GPGME_STATUS_CARDCTRL &&
!d->serial.empty()) {
const std::string sArgs = args;
if (sArgs.find(d->serial) == std::string::npos) {
// Wrong smartcard
err = Error::fromCode(GPG_ERR_WRONG_CARD);
return ERROR;
} else {
printf("EditInteractor: Confirmed S/N: %s %s\n",
d->serial.c_str(), sArgs.c_str());
}
return GOT_SERIAL;
} else if (d->serial.empty()) {
return GOT_SERIAL;
}
err = GENERAL_ERROR;
return ERROR;
case GOT_SERIAL:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.prompt") == 0) {
return DO_ADMIN;
}
err = GENERAL_ERROR;
return ERROR;
case DO_ADMIN:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.prompt") == 0) {
return KEY_ATTR;
}
err = GENERAL_ERROR;
return ERROR;
// Handling for key-attr subcommand
case KEY_ATTR:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.prompt") == 0) {
// Happens if key attr is not yet supported.
return COMMAND;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.algo") == 0) {
return KEY_ALGO1;
}
err = GENERAL_ERROR;
return ERROR;
case KEY_ALGO1:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.size") == 0) {
return SIZE;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.curve") == 0) {
return KEY_CURVE1;
}
err = GENERAL_ERROR;
return ERROR;
case KEY_ALGO2:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.size") == 0) {
return SIZE2;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.curve") == 0) {
return KEY_CURVE2;
}
err = GENERAL_ERROR;
return ERROR;
case KEY_ALGO3:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.size") == 0) {
return SIZE3;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.curve") == 0) {
return KEY_CURVE3;
}
err = GENERAL_ERROR;
return ERROR;
case KEY_CURVE1:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.algo") == 0) {
return KEY_ALGO2;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.prompt") == 0) {
return COMMAND;
}
err = GENERAL_ERROR;
return ERROR;
case KEY_CURVE2:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.algo") == 0) {
return KEY_ALGO3;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.prompt") == 0) {
return COMMAND;
}
err = GENERAL_ERROR;
return ERROR;
case KEY_CURVE3:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.algo") == 0) {
return KEY_ALGO3;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.prompt") == 0) {
return COMMAND;
}
err = GENERAL_ERROR;
return ERROR;
// End key-attr handling
case COMMAND:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.backup_enc") == 0) {
return BACKUP;
}
err = GENERAL_ERROR;
return ERROR;
case BACKUP:
if (status == GPGME_STATUS_GET_BOOL &&
strcmp(args, "cardedit.genkeys.replace_keys") == 0) {
return REPLACE;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.size") == 0) {
return SIZE;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.valid") == 0) {
return EXPIRE;
}
err = GENERAL_ERROR;
return ERROR;
case REPLACE:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.size") == 0) {
return SIZE;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.valid") == 0) {
return EXPIRE;
}
err = GENERAL_ERROR;
return ERROR;
case SIZE:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.size") == 0) {
return SIZE2;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.valid") == 0) {
return EXPIRE;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.algo") == 0) {
return KEY_ALGO2;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.prompt") == 0) {
return COMMAND;
}
err = GENERAL_ERROR;
return ERROR;
case SIZE2:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.size") == 0) {
return SIZE3;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.valid") == 0) {
return EXPIRE;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.genkeys.algo") == 0) {
return KEY_ALGO3;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.prompt") == 0) {
return COMMAND;
}
err = GENERAL_ERROR;
return ERROR;
case SIZE3:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.valid") == 0) {
return EXPIRE;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.prompt") == 0) {
return COMMAND;
}
err = GENERAL_ERROR;
return ERROR;
case EXPIRE:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.name") == 0) {
return NAME;
}
err = GENERAL_ERROR;
return ERROR;
case NAME:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.email") == 0) {
return EMAIL;
}
err = GENERAL_ERROR;
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.name") == 0) {
err = INV_NAME_ERROR;
}
return ERROR;
case EMAIL:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.comment") == 0) {
return COMMENT;
}
err = GENERAL_ERROR;
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.email") == 0) {
err = INV_EMAIL_ERROR;
}
return ERROR;
case COMMENT:
if (status == GPGME_STATUS_BACKUP_KEY_CREATED) {
std::string sArgs = args;
const auto pos = sArgs.rfind(" ");
if (pos != std::string::npos) {
d->backupFileName = sArgs.substr(pos + 1);
return BACKUP_KEY_CREATED;
}
}
if (status == GPGME_STATUS_KEY_CREATED) {
return KEY_CREATED;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keyedit.prompt") == 0) {
return QUIT;
}
err = GENERAL_ERROR;
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.comment") == 0) {
err = INV_COMMENT_ERROR;
}
return ERROR;
case BACKUP_KEY_CREATED:
if (status == GPGME_STATUS_KEY_CREATED) {
return KEY_CREATED;
}
err = GENERAL_ERROR;
return ERROR;
case KEY_CREATED:
return QUIT;
case QUIT:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "cardedit.prompt") == 0) {
return QUIT;
}
err = GENERAL_ERROR;
return ERROR;
case ERROR:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keyedit.prompt") == 0) {
return QUIT;
}
err = lastError();
return ERROR;
default:
err = GENERAL_ERROR;
return ERROR;
}
}

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Mime Type
text/x-c++
Expires
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Storage Engine
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Storage Format
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