246e87fea2
Signed-off-by: Aron Budea <aron.budea@collabora.com> Change-Id: Iec477c223f2dc75e0be8b472c8439ca9311d6aae
152 lines
4 KiB
C++
152 lines
4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
|
|
/*
|
|
* Copyright the Collabora Online contributors.
|
|
*
|
|
* SPDX-License-Identifier: MPL-2.0
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <Poco/DigestStream.h>
|
|
#include <Poco/Base64Decoder.h>
|
|
#include <Poco/DateTimeParser.h>
|
|
#include <Poco/Crypto/RSADigestEngine.h>
|
|
|
|
#include <fstream>
|
|
#include <sstream>
|
|
#include <iostream>
|
|
|
|
#include "Log.hpp"
|
|
#include "Crypto.hpp"
|
|
#if ENABLE_SUPPORT_KEY
|
|
#include "support-public-key.hpp"
|
|
#endif
|
|
|
|
using namespace Poco;
|
|
using namespace Poco::Crypto;
|
|
|
|
std::string getSupportPublicKey()
|
|
{
|
|
#if ENABLE_SUPPORT_KEY
|
|
return SUPPORT_PUBLIC_KEY;
|
|
#else
|
|
return std::string();
|
|
#endif
|
|
}
|
|
|
|
struct SupportKeyImpl
|
|
{
|
|
bool _invalid;
|
|
std::string _key;
|
|
std::string _data;
|
|
std::string _signature;
|
|
DateTime _expiry;
|
|
// Key format: iso-expiry-date:field1:field2:field:...:<signature>
|
|
SupportKeyImpl(const std::string &key)
|
|
: _invalid(true), _key(key)
|
|
{
|
|
LOG_INF("Support key '" << key << "' provided");
|
|
std::size_t firstColon = key.find(':');
|
|
if (firstColon != std::string::npos)
|
|
{
|
|
std::string expiry(key.substr(0, firstColon));
|
|
LOG_INF("Support key with expiry '" << expiry << '\'');
|
|
|
|
try
|
|
{
|
|
int timeZoneDifferential = 0;
|
|
Poco::DateTimeParser::parse(expiry, _expiry, timeZoneDifferential);
|
|
|
|
std::size_t lastColon = key.rfind(':');
|
|
if (lastColon != std::string::npos)
|
|
{
|
|
_signature = key.substr(lastColon + 1,
|
|
key.length() - lastColon);
|
|
_data = key.substr(0, lastColon);
|
|
LOG_INF("Support key signature '" << _signature << "' data '" << _data << '\'');
|
|
|
|
_invalid = false;
|
|
}
|
|
} catch (SyntaxException &e) {
|
|
LOG_ERR("Invalid support key expiry '" << expiry << '\'');
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
SupportKey::SupportKey(const std::string& key)
|
|
: _impl(std::make_unique<SupportKeyImpl>(key))
|
|
{
|
|
}
|
|
|
|
SupportKey::~SupportKey()
|
|
{
|
|
}
|
|
|
|
bool SupportKey::verify()
|
|
{
|
|
if (_impl->_invalid)
|
|
{
|
|
LOG_ERR("Basic key structure is invalid.");
|
|
return false;
|
|
}
|
|
|
|
std::istringstream pubStream(getSupportPublicKey());
|
|
|
|
try {
|
|
RSAKey keyPub(&pubStream);
|
|
RSADigestEngine rsaEngine(keyPub, RSADigestEngine::DigestType::DIGEST_SHA1);
|
|
rsaEngine.update(_impl->_data);
|
|
|
|
std::istringstream sigStream(_impl->_signature);
|
|
Poco::Base64Decoder rawStream(sigStream);
|
|
|
|
std::istreambuf_iterator<char> eos;
|
|
std::vector<unsigned char> rawSignature(std::istreambuf_iterator<char>(rawStream), eos);
|
|
LOG_INF("Signature of length " << rawSignature.size()
|
|
<< " data size: " << _impl->_data.length());
|
|
if (!rsaEngine.verify(rawSignature))
|
|
{
|
|
LOG_ERR("Support key is not correctly signed.");
|
|
return false;
|
|
}
|
|
} catch (...) {
|
|
LOG_ERR("Exception validating support key.");
|
|
return false;
|
|
}
|
|
LOG_INF("Support key correctly signed.");
|
|
return true;
|
|
}
|
|
|
|
int SupportKey::validDaysRemaining()
|
|
{
|
|
if (!verify())
|
|
{
|
|
LOG_ERR("Support key signature is invalid.");
|
|
return 0;
|
|
}
|
|
Timespan remaining = _impl->_expiry - DateTime();
|
|
int days = remaining.days();
|
|
if (days > 0)
|
|
LOG_INF("Support key has " << days << " remaining");
|
|
else
|
|
LOG_ERR("Support key has expired for " << -days << " days");
|
|
|
|
return days;
|
|
}
|
|
|
|
DateTime SupportKey::expiry() const
|
|
{
|
|
return _impl->_expiry;
|
|
}
|
|
|
|
std::string SupportKey::data() const
|
|
{
|
|
return _impl->_data;
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|