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/*
gpgaddexistingsubkeyeditinteractor.cpp - Edit Interactor to add an existing subkey to an OpenPGP key
Copyright (c) 2022 g10 Code GmbH
Software engineering by Ingo Klöcker <[email protected]>
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 "gpgaddexistingsubkeyeditinteractor.h"
#include "error.h"
#include <gpgme.h>
// avoid conflict (msvc)
#ifdef ERROR
# undef ERROR
#endif
using namespace GpgME;
class GpgAddExistingSubkeyEditInteractor::Private
{
enum {
START = EditInteractor::StartState,
COMMAND,
ADD_EXISTING_KEY,
KEYGRIP,
FLAGS,
VALID,
KEY_CREATED,
QUIT,
SAVE,
ERROR = EditInteractor::ErrorState
};
GpgAddExistingSubkeyEditInteractor *const q = nullptr;
public:
Private(GpgAddExistingSubkeyEditInteractor *q, const std::string &keygrip)
: q{q}
, keygrip{keygrip}
{
}
const char *action(Error &err) const;
unsigned int nextState(unsigned int statusCode, const char *args, Error &err) const;
std::string keygrip;
std::string expiry;
};
const char *GpgAddExistingSubkeyEditInteractor::Private::action(Error &err) const
{
switch (q->state()) {
case COMMAND:
return "addkey";
case ADD_EXISTING_KEY:
return "keygrip";
case KEYGRIP:
return keygrip.c_str();
case FLAGS:
return "Q"; // do not toggle any usage flags
case VALID:
return expiry.empty() ? "0" : expiry.c_str();
case QUIT:
return "quit";
case SAVE:
return "Y";
case START:
case KEY_CREATED:
case ERROR:
return nullptr;
default:
err = Error::fromCode(GPG_ERR_GENERAL);
return nullptr;
}
}
unsigned int GpgAddExistingSubkeyEditInteractor::Private::nextState(unsigned int status, const char *args, Error &err) const
{
using std::strcmp;
static const Error GENERAL_ERROR = Error::fromCode(GPG_ERR_GENERAL);
static const Error NO_KEY_ERROR = Error::fromCode(GPG_ERR_NO_KEY);
static const Error INV_TIME_ERROR = Error::fromCode(GPG_ERR_INV_TIME);
if (q->needsNoResponse(status)) {
return q->state();
}
switch (q->state()) {
case START:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keyedit.prompt") == 0) {
return COMMAND;
}
err = GENERAL_ERROR;
return ERROR;
case COMMAND:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.algo") == 0) {
return ADD_EXISTING_KEY;
}
err = GENERAL_ERROR;
return ERROR;
case ADD_EXISTING_KEY:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.keygrip") == 0) {
return KEYGRIP;
}
err = GENERAL_ERROR;
return ERROR;
case KEYGRIP:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.flags") == 0) {
return FLAGS;
} else if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.keygrip")) {
err = NO_KEY_ERROR;
return ERROR;
}
err = GENERAL_ERROR;
return ERROR;
case FLAGS:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.valid") == 0) {
return VALID;
}
err = GENERAL_ERROR;
return ERROR;
case VALID:
if (status == GPGME_STATUS_KEY_CREATED) {
return KEY_CREATED;
}
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keyedit.prompt") == 0) {
return QUIT;
} else if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keygen.valid")) {
err = INV_TIME_ERROR;
return ERROR;
}
err = GENERAL_ERROR;
return ERROR;
case KEY_CREATED:
return QUIT;
case QUIT:
if (status == GPGME_STATUS_GET_BOOL &&
strcmp(args, "keyedit.save.okay") == 0) {
return SAVE;
}
err = GENERAL_ERROR;
return ERROR;
case ERROR:
if (status == GPGME_STATUS_GET_LINE &&
strcmp(args, "keyedit.prompt") == 0) {
return QUIT;
}
err = q->lastError();
return ERROR;
default:
err = GENERAL_ERROR;
return ERROR;
}
}
GpgAddExistingSubkeyEditInteractor::GpgAddExistingSubkeyEditInteractor(const std::string &keygrip)
: EditInteractor{}
, d{new Private{this, keygrip}}
{
}
GpgAddExistingSubkeyEditInteractor::~GpgAddExistingSubkeyEditInteractor() = default;
void GpgAddExistingSubkeyEditInteractor::setExpiry(const std::string &timeString)
{
d->expiry = timeString;
}
const char *GpgAddExistingSubkeyEditInteractor::action(Error &err) const
{
return d->action(err);
}
unsigned int GpgAddExistingSubkeyEditInteractor::nextState(unsigned int status, const char *args, Error &err) const
{
return d->nextState(status, args, err);
}
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