fix Codacy warnings

gcontini

2020-12-05 907a46213e5ca3e741744f67ad71966b70b89e38

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/*
 * LicenseVerifier.cpp
 *
 *  Created on: Nov 17, 2019
 *      Author: GC
 */
#include <cmath>
#include <algorithm>
#include <licensecc_properties.h>
 
#include "license_verifier.hpp"
#include "../base/string_utils.h"
#include "../os/signature_verifier.hpp"
#include "../hw_identifier/hw_identifier_facade.hpp"
 
namespace license {
using namespace std;
 
LicenseVerifier::LicenseVerifier(EventRegistry& er) : m_event_registry(er) {}
 
LicenseVerifier::~LicenseVerifier() {}
 
FUNCTION_RETURN LicenseVerifier::verify_signature(const FullLicenseInfo& licInfo) {
    const string licInfoData(licInfo.printForSign());
 
    FUNCTION_RETURN ret = license::os::verify_signature(licInfoData, licInfo.license_signature);
 
    if (ret == FUNC_RET_OK) {
        m_event_registry.addEvent(SIGNATURE_VERIFIED, licInfo.source);
    } else {
        m_event_registry.addEvent(LICENSE_CORRUPTED, licInfo.source);
    }
    return ret;
}
 
// TODO: split in different classes
FUNCTION_RETURN LicenseVerifier::verify_limits(const FullLicenseInfo& lic_info) {
    bool is_valid = LCC_VERIFY_MAGIC;
    if (!is_valid) {
        m_event_registry.addEvent(LICENSE_CORRUPTED, lic_info.source.c_str());
    }
    const time_t now = time(nullptr);
    auto expiry = lic_info.m_limits.find(PARAM_EXPIRY_DATE);
    if (is_valid && expiry != lic_info.m_limits.end()) {
        if (seconds_from_epoch(expiry->second) < now) {
            m_event_registry.addEvent(PRODUCT_EXPIRED, lic_info.source.c_str(), ("Expired " + expiry->second).c_str());
            is_valid = false;
        }
    }
    const auto start_date = lic_info.m_limits.find(PARAM_BEGIN_DATE);
    if (is_valid && start_date != lic_info.m_limits.end()) {
        if (seconds_from_epoch(start_date->second) > now) {
            m_event_registry.addEvent(PRODUCT_EXPIRED, lic_info.source.c_str(),
                                      ("Valid from " + start_date->second).c_str());
            is_valid = false;
        }
    }
    const auto client_sig = lic_info.m_limits.find(PARAM_CLIENT_SIGNATURE);
    if (is_valid && client_sig != lic_info.m_limits.end()) {
        const LCC_EVENT_TYPE event = hw_identifier::HwIdentifierFacade::validate_pc_signature(client_sig->second);
        m_event_registry.addEvent(event, lic_info.source);
        is_valid = is_valid && (event == LICENSE_OK);
    }
    return is_valid ? FUNC_RET_OK : FUNC_RET_ERROR;
}
 
LicenseInfo LicenseVerifier::toLicenseInfo(const FullLicenseInfo& fullLicInfo) const {
    LicenseInfo info;
    info.license_type = LCC_LOCAL;
 
    const auto expiry = fullLicInfo.m_limits.find(PARAM_EXPIRY_DATE);
    if (expiry != fullLicInfo.m_limits.end()) {
        mstrlcpy(info.expiry_date, expiry->second.c_str(), sizeof(info.expiry_date));
        info.has_expiry = true;
        const double secs = difftime(seconds_from_epoch(expiry->second), time(nullptr));
        info.days_left = max((int)round(secs / (60 * 60 * 24)), 0);
    } else {
        info.has_expiry = false;
        info.days_left = 9999;
        info.expiry_date[0] = '\0';
    }
 
    const auto start_date = fullLicInfo.m_limits.find(PARAM_BEGIN_DATE);
    if (start_date != fullLicInfo.m_limits.end()) {
    }
 
    const auto client_sig = fullLicInfo.m_limits.find(PARAM_CLIENT_SIGNATURE);
    info.linked_to_pc = (client_sig != fullLicInfo.m_limits.end());
 
    const auto proprietary_data = fullLicInfo.m_limits.find(PARAM_EXTRA_DATA);
    if (proprietary_data != fullLicInfo.m_limits.end()) {
        mstrlcpy(info.proprietary_data, proprietary_data->second.c_str(), sizeof(info.proprietary_data));
    }
    return info;
}
 
} /* namespace license */