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/**
* Copyright (C) 2021 Saturneric <[email protected]>
*
* This file is part of GpgFrontend.
*
* GpgFrontend 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.
*
* GpgFrontend 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 GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from
* the gpg4usb project, which is under GPL-3.0-or-later.
*
* All the source code of GpgFrontend was modified and released by
* Saturneric <[email protected]> starting on May 12, 2021.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#include "GpgVerifyResultAnalyse.h"
#include <boost/format.hpp>
#include "GpgFrontend.h"
#include "core/GpgConstants.h"
#include "core/function/gpg/GpgKeyGetter.h"
#include "core/utils/CommonUtils.h"
GpgFrontend::GpgVerifyResultAnalyse::GpgVerifyResultAnalyse(
GpgError error, GpgVerifyResult result)
: error_(error), result_(std::move(result)) {}
void GpgFrontend::GpgVerifyResultAnalyse::do_analyse() {
SPDLOG_DEBUG("started");
stream_ << "[#] " << _("Verify Operation") << " ";
if (gpgme_err_code(error_) == GPG_ERR_NO_ERROR)
stream_ << "[" << _("Success") << "]" << std::endl;
else {
stream_ << "[" << _("Failed") << "] " << gpgme_strerror(error_)
<< std::endl;
set_status(-1);
}
if (result_ != nullptr && result_->signatures != nullptr) {
stream_ << "------------>" << std::endl;
auto sign = result_->signatures;
stream_ << "[>] " << _("Signed On") << "(" << _("UTC") << ")"
<< " "
<< boost::posix_time::to_iso_extended_string(
boost::posix_time::from_time_t(sign->timestamp))
<< std::endl;
stream_ << std::endl << "[>] " << _("Signatures List") << ":" << std::endl;
bool canContinue = true;
int count = 1;
while (sign && canContinue) {
stream_ << boost::format(_("Signature [%1%]:")) % count++ << std::endl;
switch (gpg_err_code(sign->status)) {
case GPG_ERR_BAD_SIGNATURE:
stream_ << _("A Bad Signature.") << std::endl;
print_signer(stream_, sign);
stream_ << _("This Signature is invalid.") << std::endl;
canContinue = false;
set_status(-1);
break;
case GPG_ERR_NO_ERROR:
stream_ << _("A") << " ";
if (sign->summary & GPGME_SIGSUM_GREEN) {
stream_ << _("Good") << " ";
}
if (sign->summary & GPGME_SIGSUM_RED) {
stream_ << _("Bad") << " ";
}
if (sign->summary & GPGME_SIGSUM_SIG_EXPIRED) {
stream_ << _("Expired") << " ";
}
if (sign->summary & GPGME_SIGSUM_KEY_MISSING) {
stream_ << _("Missing Key's") << " ";
}
if (sign->summary & GPGME_SIGSUM_KEY_REVOKED) {
stream_ << _("Revoked Key's") << " ";
}
if (sign->summary & GPGME_SIGSUM_KEY_EXPIRED) {
stream_ << _("Expired Key's") << " ";
}
if (sign->summary & GPGME_SIGSUM_CRL_MISSING) {
stream_ << _("Missing CRL's") << " ";
}
if (sign->summary & GPGME_SIGSUM_VALID) {
stream_ << _("Signature Fully Valid.") << std::endl;
} else {
stream_ << _("Signature Not Fully Valid.") << std::endl;
stream_ << _("(May used a subkey to sign)") << std::endl;
}
if (!(sign->status & GPGME_SIGSUM_KEY_MISSING)) {
if (!print_signer(stream_, sign)) set_status(0);
} else {
stream_ << _("Key is NOT present with ID 0x") << sign->fpr
<< std::endl;
}
set_status(1);
break;
case GPG_ERR_NO_PUBKEY:
stream_ << _("A signature could NOT be verified due to a Missing Key")
<< std::endl;
set_status(-2);
break;
case GPG_ERR_CERT_REVOKED:
stream_ << _("A signature is valid but the key used to verify the "
"signature has been revoked")
<< std::endl;
if (!print_signer(stream_, sign)) {
set_status(0);
}
set_status(-1);
break;
case GPG_ERR_SIG_EXPIRED:
stream_ << _("A signature is valid but expired") << std::endl;
if (!print_signer(stream_, sign)) {
set_status(0);
}
set_status(-1);
break;
case GPG_ERR_KEY_EXPIRED:
stream_ << _("A signature is valid but the key used to "
"verify the signature has expired.")
<< std::endl;
if (!print_signer(stream_, sign)) {
set_status(0);
}
break;
case GPG_ERR_GENERAL:
stream_ << _("There was some other error which prevented "
"the signature verification.")
<< std::endl;
status_ = -1;
canContinue = false;
break;
default:
auto fpr = std::string(sign->fpr);
stream_ << _("Error for key with fingerprint") << " "
<< GpgFrontend::BeautifyFingerprint(fpr);
set_status(-1);
}
stream_ << std::endl;
sign = sign->next;
}
stream_ << "<------------" << std::endl;
} else {
stream_
<< "[>] "
<< _("Could not find information that can be used for verification.")
<< std::endl;
set_status(0);
return;
}
}
bool GpgFrontend::GpgVerifyResultAnalyse::print_signer(
std::stringstream &stream, gpgme_signature_t sign) {
bool keyFound = true;
auto key = GpgFrontend::GpgKeyGetter::GetInstance().GetKey(sign->fpr);
if (!key.IsGood()) {
stream << " " << _("Signed By") << ": "
<< "<" << _("Unknown") << ">" << std::endl;
set_status(0);
keyFound = false;
} else {
stream << " " << _("Signed By") << ": "
<< key.GetUIDs()->front().GetUID() << std::endl;
}
if (sign->pubkey_algo)
stream << " " << _("Public Key Algo") << ": "
<< gpgme_pubkey_algo_name(sign->pubkey_algo) << std::endl;
if (sign->hash_algo)
stream << " " << _("Hash Algo") << ": "
<< gpgme_hash_algo_name(sign->hash_algo) << std::endl;
if (sign->timestamp)
stream << " " << _("Date") << "(" << _("UTC") << ")"
<< ": "
<< boost::posix_time::to_iso_extended_string(
boost::posix_time::from_time_t(sign->timestamp))
<< std::endl;
stream << std::endl;
return keyFound;
}
gpgme_signature_t GpgFrontend::GpgVerifyResultAnalyse::GetSignatures() const {
if (result_)
return result_->signatures;
else
return nullptr;
}
GpgFrontend::GpgVerifyResult
GpgFrontend::GpgVerifyResultAnalyse::TakeChargeOfResult() {
return std::move(result_);
}
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