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squawk/shared/clientinfo.cpp

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// Squawk messenger.
// Copyright (C) 2019 Yury Gubich <blue@macaw.me>
//
// This program 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.
//
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#include "clientinfo.h"
const std::map<QString, QCryptographicHash::Algorithm> Shared::ClientInfo::hashes = {
//md2 is missing
{"md5", QCryptographicHash::Md5},
{"sha-1", QCryptographicHash::Sha1},
{"sha-224", QCryptographicHash::Sha224},
{"sha-256", QCryptographicHash::Sha256},
{"sha-384", QCryptographicHash::Sha384},
{"sha-512", QCryptographicHash::Sha512},
//shake128 is missing
//shake256 is missing
};
Shared::ClientInfo::ClientInfo():
identities(),
extensions(),
id(),
specificPresence() {}
Shared::ClientInfo::ClientInfo(const QString& p_node, const QString& p_ver, const QString& p_hash) :
identities(),
extensions(),
id(p_node, p_ver, p_hash),
specificPresence() {}
Shared::ClientInfo::ClientInfo(const Shared::ClientId& p_id) :
identities(),
extensions(),
id(p_id),
specificPresence() {}
QString Shared::ClientInfo::getId() const {
return id.getId();
}
QDataStream & Shared::ClientInfo::operator >> (QDataStream& stream) const {
stream << id;
stream << (quint8)identities.size();
for (const Shared::Identity& identity : identities) {
stream << identity;
}
stream << (quint8)extensions.size();
for (const QString& ext : extensions) {
stream << ext;
}
return stream;
}
QDataStream & Shared::ClientInfo::operator << (QDataStream& stream) {
stream >> id;
quint8 size;
stream >> size;
for (quint8 i = 0; i < size; ++i) {
Shared::Identity identity;
stream >> identity;
identities.insert(identity);
}
stream >> size;
for (quint8 i = 0; i < size; ++i) {
QString ext;
stream >> ext;
extensions.insert(ext);
}
return stream;
}
bool Shared::ClientInfo::valid() const {
std::map<QString, QCryptographicHash::Algorithm>::const_iterator itr = hashes.find(id.hash);
if (itr == hashes.end()) {
return false;
}
QCryptographicHash calc(itr->second);
QString validationString = "";
for (const Identity& identity : identities) {
calc.addData((identity.category + "/" + identity.type + "/" + identity.language + "/" + identity.name + "<").toUtf8());
}
for (const QString& ext : extensions) {
calc.addData((ext + "<").toUtf8());
}
QString result = calc.result().toBase64();
return result == id.verification;
}
QDataStream& operator << (QDataStream& stream, const Shared::ClientInfo& info) {
info >> stream;
return stream;
}
QDataStream& operator >> (QDataStream& stream, Shared::ClientInfo& info) {
info << stream;
return stream;
}