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/**
* 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.
*
* Foobar 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 Foobar. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from gpg4usb-team.
* Their source code version also complies with GNU General Public License.
*
* The source code version of this software was modified and released
* by Saturneric<[email protected]> starting on May 12, 2021.
*
*/
#include "server/ComUtils.h"
/**
* check server reply if it can parse into a json object
* @param reply reply data in byte array
* @return if successful
*/
bool GpgFrontend::ComUtils::checkServerReply(const QByteArray &reply) {
if (reply.isEmpty()) {
QMessageBox::critical(
this, _("Error"),
_("Nothing Reply. Please check the Internet connection."));
return false;
}
qDebug() << "Reply" << reply;
/**
* Server Reply Format(Except Timeout)
* {
* "status": 200,
* "msg": "OK",
* "timestamp": 1628652783895
* "data" : {
* ...
* }
* }
*/
// check if reply is a json object
if (replyDoc.Parse(reply).HasParseError() || !replyDoc.IsObject()) {
QMessageBox::critical(this, _("Error"), _("Unknown Error"));
return false;
}
// check status(int) and message(string)
if (replyDoc.HasMember("status") && replyDoc.HasMember("msg") &&
replyDoc.HasMember("timestamp") && replyDoc.HasMember("data") &&
replyDoc["status"].IsNumber() && replyDoc["msg"].IsString() &&
replyDoc["timestamp"].IsNumber() && replyDoc["data"].IsObject()) {
int status = replyDoc["status"].GetInt();
QDateTime time;
time.setMSecsSinceEpoch(replyDoc["timestamp"].GetInt64());
auto message = replyDoc["msg"].GetString();
dataVal = replyDoc["data"].GetObject();
qDebug() << "Reply Date & Time" << time;
// check reply timestamp
if (time < QDateTime::currentDateTime().addSecs(-10)) {
QMessageBox::critical(this, _("Network Error"), _("Outdated Reply"));
return false;
}
// check status code if successful (200-299)
// check data object
if (status / 100 == 2) {
is_good = true;
return true;
} else {
if (dataVal.HasMember("exceptionMessage") &&
dataVal["exceptionMessage"].IsString())
QMessageBox::critical(this, message,
dataVal["exceptionMessage"].GetString());
else
QMessageBox::critical(this, message, _("Unknown Reason"));
}
} else
QMessageBox::critical(this, _("Network Error"), _("Unknown Reply Format"));
return false;
}
/**
* get value in data
* @param key key of value
* @return value in string format
*/
QString GpgFrontend::ComUtils::getDataValueStr(const QString &key) const {
if (is_good) {
auto k_byte_array = key.toUtf8();
if (dataVal.HasMember(k_byte_array.data())) {
return dataVal[k_byte_array.data()].GetString();
} else
return {};
} else
return {};
}
/**
* Get eventually url by service type
* @param type service which server provides
* @return url
*/
QString GpgFrontend::ComUtils::getUrl(ComUtils::ServiceType type) const {
auto host =
settings
.value("general/currentGpgfrontendServer", "service.gpgfrontend.pub")
.toString();
auto protocol = QString();
// Localhost Debug Server
if (host == "localhost")
protocol = "http://";
else
protocol = "https://";
auto url = protocol + host + ":9049/";
switch (type) {
case GetServiceToken:
url += "/user";
break;
case ShortenCryptText:
url += "/text/new";
break;
case GetFullCryptText:
url += "/text/get";
break;
case UploadPubkey:
url += "/key/upload";
break;
case GetPubkey:
url += "/key/get";
break;
}
qDebug() << "ComUtils getUrl" << url;
return url;
}
bool GpgFrontend::ComUtils::checkDataValueStr(const QString &key) const {
auto key_byte_array_data = key.toUtf8().constData();
if (is_good) {
return dataVal.HasMember(key_byte_array_data) &&
dataVal[key_byte_array_data].IsString();
} else
return false;
}
bool GpgFrontend::ComUtils::checkServiceTokenFormat(const QString &uuid) const {
return re_uuid.match(uuid).hasMatch();
}
QByteArray GpgFrontend::ComUtils::getSignStringBase64(
GpgFrontend::GpgContext *ctx, const QString &str, const GpgKey &key) {
std::vector<GpgKey> keys{key};
QByteArray outSignText;
auto signData = str.toUtf8();
// The use of multi-threading brings an improvement in UI smoothness
gpgme_error_t error;
auto thread = QThread::create([&]() {
error = ctx->sign(keys, signData, &outSignText, GPGME_SIG_MODE_NORMAL,
nullptr, false);
});
thread->start();
while (thread->isRunning()) QApplication::processEvents();
thread->deleteLater();
return outSignText.toBase64();
}
const rapidjson::Value &GpgFrontend::ComUtils::getDataValue(
const QString &key) const {
if (is_good) {
auto k_byte_array = key.toUtf8();
if (dataVal.HasMember(k_byte_array.data())) {
return dataVal[k_byte_array.data()];
}
}
throw std::runtime_error("Inner Error");
}
bool GpgFrontend::ComUtils::checkDataValue(const QString &key) const {
auto key_byte_array_data = key.toUtf8().constData();
if (is_good) {
return dataVal.HasMember(key_byte_array_data);
} else
return false;
}
void GpgFrontend::ComUtils::clear() {
this->dataVal.Clear();
this->replyDoc.Clear();
is_good = false;
}
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