CommonSamTransactionManagerAdapter.h

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/**************************************************************************************************
 * Copyright (c) 2022 Calypso Networks Association https://calypsonet.org/                        *
 *                                                                                                *
 * See the NOTICE file(s) distributed with this work for additional information regarding         *
 * copyright ownership.                                                                           *
 *                                                                                                *
 * This program and the accompanying materials are made available under the terms of the Eclipse  *
 * Public License 2.0 which is available at http://www.eclipse.org/legal/epl-2.0                  *
 *                                                                                                *
 * SPDX-License-Identifier: EPL-2.0                                                               *
 **************************************************************************************************/
 
#pragma once
 
/* Calypsonet Terminal Calypso */
#include "InconsistentDataException.h"
#include "InvalidCardSignatureException.h"
#include "InvalidSignatureException.h"
#include "ReaderIOException.h"
#include "SamIOException.h"
#include "SamRevokedException.h"
#include "UnexpectedCommandStatusException.h"
 
/* Calypsonet Terminal Card */
#include "ProxyReaderApi.h"
 
/* Keyple Card Calypso */
#include "AbstractSamCommand.h"
#include "BasicSignatureComputationDataAdapter.h"
#include "CalypsoSamAdapter.h"
#include "CalypsoSamSecurityDataException.h"
#include "CalypsoSamCommandException.h"
#include "CardBrokenCommunicationException.h"
#include "CardRequestAdapter.h"
#include "CmdSamDataCipher.h"
#include "CmdSamPsoComputeSignature.h"
#include "CmdSamPsoVerifySignature.h"
#include "CmdSamSelectDiversifier.h"
#include "CommonSecuritySettingAdapter.h"
#include "CommonSignatureComputationData.h"
#include "CommonSignatureVerificationData.h"
#include "CommonTransactionManagerAdapter.h"
#include "ReaderBrokenCommunicationException.h"
#include "SamSecuritySetting.h"
#include "SamSecuritySettingAdapter.h"
#include "SamTransactionManager.h"
#include "TraceableSignatureComputationDataAdapter.h"
#include "TraceableSignatureVerificationDataAdapter.h"
#include "UnexpectedStatusWordException.h"
 
/* Keyple Core Util */
#include "Arrays.h"
#include "ByteArrayUtil.h"
#include "HexUtil.h"
#include "KeypleAssert.h"
#include "KeypleStd.h"
#include "LoggerFactory.h"
#include "StringUtils.h"
 
namespace keyple {
namespace card {
namespace calypso {
 
using namespace calypsonet::terminal::card;
using namespace keyple::core::util::cpp;
 
template <typename T>
class CommonSamTransactionManagerAdapter
: public CommonTransactionManagerAdapter<SamTransactionManager,
                                         SamSecuritySetting,
                                         SamSecuritySettingAdapter>,
  public SamTransactionManager {
public:
    CommonSamTransactionManagerAdapter(
        const std::shared_ptr<ProxyReaderApi> samReader,
        const std::shared_ptr<CalypsoSamAdapter> sam,
        const std::shared_ptr<SamSecuritySettingAdapter> securitySetting)
    : CommonTransactionManagerAdapter(
      sam,
      std::reinterpret_pointer_cast<CommonSecuritySettingAdapter<SamSecuritySettingAdapter>>(
          securitySetting),
      std::vector<std::vector<uint8_t>>()),
      mSamReader(samReader),
      mSam(sam),
      mSecuritySetting(
          std::reinterpret_pointer_cast<CommonSecuritySettingAdapter<SamSecuritySettingAdapter>>(
              securitySetting)),
      mDefaultKeyDiversifier(sam->getSerialNumber()) {}
 
    CommonSamTransactionManagerAdapter(
        const std::shared_ptr<SmartCard> targetSmartCard,
        const std::shared_ptr<CommonSecuritySettingAdapter<T>> securitySetting,
        const std::vector<uint8_t>& defaultKeyDiversifier,
        const std::vector<std::vector<uint8_t>>& transactionAuditData)
    : CommonTransactionManagerAdapter(
      targetSmartCard,
      std::reinterpret_pointer_cast<CommonSecuritySettingAdapter<SamSecuritySettingAdapter>>(
          securitySetting),
      transactionAuditData),
      mSamReader(securitySetting->getControlSamReader()),
      mSam(securitySetting->getControlSam()),
      mSecuritySetting(securitySetting),
      mDefaultKeyDiversifier(defaultKeyDiversifier) {}
 
    const std::vector<std::vector<uint8_t>>& getTransactionAuditData() const final
    {
        return CommonTransactionManagerAdapter::getTransactionAuditData();
    }
 
    const std::shared_ptr<CardReader> getSamReader() const final
    {
        return std::dynamic_pointer_cast<CardReader>(mSamReader);
    }
 
    const std::shared_ptr<CalypsoSam> getCalypsoSam() const final
    {
        return mSam;
    }
 
    SamTransactionManager& prepareComputeSignature(const any data) override
    {
        /* C++: careful, code is a little bit different from Java because of any_cast flow */
        try {
            /* Basic signature */
            auto dataAdapter =
                any_cast<std::shared_ptr<BasicSignatureComputationDataAdapter>>(data);
 
            Assert::getInstance().notNull(dataAdapter, MSG_INPUT_OUTPUT_DATA)
                                 .isInRange(dataAdapter->getData().size(),
                                            1,
                                            208,
                                            "length of data to sign")
                                 .isTrue(dataAdapter->getData().size() % 8 == 0,
                                         "length of data to sign is a multiple of 8")
                                 .isInRange(dataAdapter->getSignatureSize(),
                                            1,
                                            8,
                                            MSG_SIGNATURE_SIZE)
                                 .isTrue(dataAdapter->isKeyDiversifierSet() == false ||
                                         (dataAdapter->getKeyDiversifier().size() >= 1 &&
                                          dataAdapter->getKeyDiversifier().size() <= 8),
                                         MSG_KEY_DIVERSIFIER_SIZE_IS_IN_RANGE_1_8);
 
            prepareSelectDiversifierIfNeeded(dataAdapter->getKeyDiversifier());
            mSamCommands.push_back(std::make_shared<CmdSamDataCipher>(mSam->getProductType(),
                                                                      dataAdapter,
                                                                      nullptr));
            return *this;
 
        } catch (const std::exception& e) {
            (void)e;
        }
 
        try {
            /* Traceable signature */
            auto dataAdapter =
                any_cast<std::shared_ptr<TraceableSignatureComputationDataAdapter>>(data);
 
            Assert::getInstance().notNull(dataAdapter, MSG_INPUT_OUTPUT_DATA)
                                .isInRange(dataAdapter->getData().size(),
                                            1,
                                            dataAdapter->isSamTraceabilityMode() ? 206 : 208,
                                            "length of data to sign")
                                .isInRange(dataAdapter->getSignatureSize(),
                                           1,
                                           8,
                                           MSG_SIGNATURE_SIZE)
                                .isTrue(!dataAdapter->isSamTraceabilityMode() ||
                                        (dataAdapter->getTraceabilityOffset() >= 0 &&
                                         dataAdapter->getTraceabilityOffset() <=
                                            static_cast<int>((dataAdapter->getData().size() * 8) -
                                            (dataAdapter->isPartialSamSerialNumber() ?
                                            7 * 8 : 8 * 8))),
                                        "traceability offset is in range [0.." +
                                        std::to_string(((dataAdapter->getData().size() * 8) -
                                                        (dataAdapter->isPartialSamSerialNumber() ? 7 * 8 : 8 * 8))) +
                                        "]")
                                .isTrue(dataAdapter->isKeyDiversifierSet() == false ||
                                        (dataAdapter->getKeyDiversifier().size() >= 1 &&
                                         dataAdapter->getKeyDiversifier().size() <= 8),
                                        MSG_KEY_DIVERSIFIER_SIZE_IS_IN_RANGE_1_8);
 
                prepareSelectDiversifierIfNeeded(dataAdapter->getKeyDiversifier());
                mSamCommands.push_back(std::make_shared<CmdSamPsoComputeSignature>(
                                        mSam->getProductType(),
                                        dataAdapter));
 
                return *this;
 
        } catch (const std::exception& e) {
            (void)e;
        }
 
        throw IllegalArgumentException("The provided data must be an instance of " \
                                       "'BasicSignatureComputationDataAdapter' or " \
                                       "'TraceableSignatureComputationDataAdapter'");
    }
 
    SamTransactionManager& prepareVerifySignature(const any data) override
    {
        /* C++: careful, code is a little bit different from Java because of any_cast flow */
        try {
            /* Basic signature */
            auto dataAdapter =
                any_cast<std::shared_ptr<BasicSignatureVerificationDataAdapter>>(data);
 
            Assert::getInstance().notNull(dataAdapter, MSG_INPUT_OUTPUT_DATA)
                                 .isInRange(dataAdapter->getData().size(),
                                            1,
                                            208,
                                            "length of signed data to verify")
                                 .isTrue(dataAdapter->getData().size() % 8 == 0,
                                         "length of data to verify is a multiple of 8")
                                 .isInRange(dataAdapter->getSignature().size(),
                                            1,
                                            8,
                                            MSG_SIGNATURE_SIZE)
                                 .isTrue(dataAdapter->isKeyDiversifierSet() == false ||
                                         (dataAdapter->getKeyDiversifier().size() >= 1 &&
                                          dataAdapter->getKeyDiversifier().size() <= 8),
                                         MSG_KEY_DIVERSIFIER_SIZE_IS_IN_RANGE_1_8);
 
            prepareSelectDiversifierIfNeeded(dataAdapter->getKeyDiversifier());
            mSamCommands.push_back(std::make_shared<CmdSamDataCipher>(mSam->getProductType(),
                                                                    nullptr,
                                                                    dataAdapter));
 
            return *this;
 
        } catch (const std::exception& e) {
            (void)e;
        }
 
        try {
            /* Traceable signature */
            auto dataAdapter =
                any_cast<std::shared_ptr<TraceableSignatureVerificationDataAdapter>>(data);
 
            Assert::getInstance().notNull(dataAdapter, MSG_INPUT_OUTPUT_DATA)
                                 .isInRange(dataAdapter->getData().size(),
                                            1,
                                            dataAdapter->isSamTraceabilityMode() ? 206 : 208,
                                            "length of signed data to verify")
                                 .isInRange(dataAdapter->getSignature().size(),
                                            1,
                                            8,
                                            MSG_SIGNATURE_SIZE)
                                 .isTrue(!dataAdapter->isSamTraceabilityMode() ||
                                         (dataAdapter->getTraceabilityOffset() >= 0 &&
                                          dataAdapter->getTraceabilityOffset() <=
                                             static_cast<int>((dataAdapter->getData().size() * 8) -
                                                              (dataAdapter->isPartialSamSerialNumber() ?
                                                              7 * 8 : 8 * 8))),
                                         "traceability offset is in range [0.." +
                                         std::to_string((dataAdapter->getData().size() * 8) -
                                                         (dataAdapter->isPartialSamSerialNumber() ? 7 * 8 : 8 * 8)) +
                                         "]")
                                 .isTrue(dataAdapter->isKeyDiversifierSet() == false ||
                                         (dataAdapter->getKeyDiversifier().size() >= 1 &&
                                          dataAdapter->getKeyDiversifier().size() <= 8),
                                         MSG_KEY_DIVERSIFIER_SIZE_IS_IN_RANGE_1_8);
 
            /* Check SAM revocation status if requested. */
            if (dataAdapter->isSamRevocationStatusVerificationRequested()) {
                Assert::getInstance().notNull(mSecuritySetting, "security settings")
                                     .notNull(mSecuritySetting->getSamRevocationServiceSpi(),
                                             "SAM revocation service");
 
                /* Extract the SAM serial number and the counter value from the data. */
                const std::vector<uint8_t> samSerialNumber =
                    ByteArrayUtil::extractBytes(dataAdapter->getData(),
                                                dataAdapter->getTraceabilityOffset(),
                                                dataAdapter->isPartialSamSerialNumber() ? 3 : 4);
 
                const int samCounterValue =
                    ByteArrayUtil::extractInt(
                        ByteArrayUtil::extractBytes(dataAdapter->getData(),
                                                    dataAdapter->getTraceabilityOffset() +
                                                    (dataAdapter->isPartialSamSerialNumber() ?
                                                        3 * 8 : 4 * 8),
                                                    3),
                        0,
                        3,
                        false);
 
                /* Is SAM revoked ? */
                if (mSecuritySetting->getSamRevocationServiceSpi()
                                    ->isSamRevoked(samSerialNumber, samCounterValue)) {
                    throw SamRevokedException(
                            StringUtils::format("SAM with serial number '%s' and counter value '%d' " \
                                                "is revoked.",
                                                HexUtil::toHex(samSerialNumber).c_str(),
                                                samCounterValue));
                }
            }
 
            prepareSelectDiversifierIfNeeded(dataAdapter->getKeyDiversifier());
            mSamCommands.push_back(
                std::make_shared<CmdSamPsoVerifySignature>(mSam->getProductType(), dataAdapter));
 
                return *this;
 
        } catch (const std::bad_cast& e) {
            /* C++: Fall through... */
            (void)e;
 
        } catch (const Exception& e) {
            /* C++: rethrow since we are in a try/catch block */
            (void)e;
            throw;
        }
 
        throw IllegalArgumentException("The provided data must be an instance of " \
                                       "'CommonSignatureVerificationDataAdapter'");
    }
 
    SamTransactionManager& processCommands() override
    {
        if (mSamCommands.empty()) {
            return *this;
        }
 
        try {
            /* Get the list of C-APDU to transmit */
            const std::vector<std::shared_ptr<ApduRequestSpi>> apduRequests =
                getApduRequests(mSamCommands);
 
            /* Wrap the list of C-APDUs into a card request */
            auto cardRequest = std::make_shared<CardRequestAdapter>(apduRequests, true);
 
            /* Transmit the commands to the SAM */
            const std::shared_ptr<CardResponseApi> cardResponse = transmitCardRequest(cardRequest);
 
            /* Retrieve the list of R-APDUs */
            const std::vector<std::shared_ptr<ApduResponseApi>>& apduResponses =
                cardResponse->getApduResponses();
 
 
            std::cout << "apduResponses size: " << apduResponses.size() << ", "
                      << "apduRequests size: " << apduRequests.size()
                      << std::endl;
 
            /*
            * If there are more responses than requests, then we are unable to fill the card image.
            * In this case we stop processing immediately because it may be a case of fraud, and we
            * throw an exception.
            */
            if (apduResponses.size() > apduRequests.size()) {
                throw InconsistentDataException("The number of SAM commands/responses does not " \
                                                "match: nb commands = " +
                                                std::to_string(apduRequests.size()) +
                                                ", nb responses = " +
                                                std::to_string(apduResponses.size()) +
                                                getTransactionAuditDataAsString());
            }
 
            /*
            * We go through all the responses (and not the requests) because there may be fewer in
            * the case of an error that occurred in strict mode. In this case the last response will
            * raise an exception.
            */
            for (int i = 0; i < static_cast<int>(apduResponses.size()); i++) {
                try {
                    mSamCommands[i]->setApduResponse(apduResponses[i]).checkStatus();
 
                } catch (const Exception& ex) {
                    /*
                     * C++: for some reason, it doesn't work if trying to catch directly the
                     * CalypsoSamCommandException exception.
                     */
                    const CalypsoSamCommandException &e =
                        dynamic_cast<const CalypsoSamCommandException&>(ex);
 
                    try {
                        const CalypsoSamCommand& commandRef =
                            std::dynamic_pointer_cast<AbstractSamCommand>(mSamCommands[i])
                                ->getCommandRef();
 
                        if (commandRef == CalypsoSamCommand::DIGEST_AUTHENTICATE) {
                            /* C++: cast made outside the if/else condition, will throw if false */
                            (void)static_cast<const CalypsoSamSecurityDataException&>(e);
                            throw InvalidCardSignatureException(
                                    "Invalid card signature.",
                                    std::make_shared<CalypsoSamCommandException>(e));
 
                        } else if (commandRef == CalypsoSamCommand::PSO_VERIFY_SIGNATURE ||
                                   commandRef == CalypsoSamCommand::DATA_CIPHER) {
                            /* C++: cast made outside the if/else condition, will throw if false */
                            (void)static_cast<const CalypsoSamSecurityDataException&>(e);
                            throw InvalidSignatureException(
                                    "Invalid signature.",
                                    std::make_shared<CalypsoSamSecurityDataException>(
                                        e.getMessage(),
                                        dynamic_cast<const CalypsoSamCommand&>(e.getCommand()),
                                        e.getStatusWord()));
 
                        } else if (commandRef == CalypsoSamCommand::SV_CHECK) {
                            /* C++: cast made outside the if/else condition, will throw if false */
                            (void)static_cast<const CalypsoSamSecurityDataException&>(e);
                            throw InvalidCardSignatureException(
                                    "Invalid SV card signature.",
                                    std::make_shared<CalypsoSamSecurityDataException>(
                                        e.getMessage(),
                                        dynamic_cast<const CalypsoSamCommand&>(e.getCommand()),
                                        e.getStatusWord()));
                        }
 
                    } catch (const std::bad_cast& e) {
                        /* C++: Fall through... */
                        (void)e;
 
                    } catch (const Exception& e) {
                        /* C++: need to rethrow as we are in a try/catch block */
                        (void)e;
                        throw;
                    }
 
                    throw UnexpectedCommandStatusException(
                              MSG_SAM_COMMAND_ERROR +
                              "while processing responses to SAM commands: " +
                              e.getCommand().getName() +
                              getTransactionAuditDataAsString(),
                              std::make_shared<CalypsoSamCommandException>(e));
                }
            }
 
            /*
            * Finally, if no error has occurred and there are fewer responses than requests, then we
            * throw an exception.
            */
            if (apduResponses.size() < apduRequests.size()) {
                throw InconsistentDataException(
                          "The number of SAM commands/responses does not match:" \
                          " nb commands = " + std::to_string(apduRequests.size()) +
                          ", nb responses = " + std::to_string(apduResponses.size()) +
                          getTransactionAuditDataAsString());
            }
 
        } catch (const Exception& e) {
            /* C++: need to rethrow as we are in a try/catch block */
            (void)e;
 
            /* Reset the list of commands (finally) */
            mSamCommands.clear();
 
            throw;
        }
 
        /* Reset the list of commands (finally) */
        mSamCommands.clear();
 
        return *this;
    }
 
protected:
    virtual std::vector<std::shared_ptr<AbstractApduCommand>>& getSamCommands()
    {
        return mSamCommands;
    }
 
    void prepareSelectDiversifierIfNeeded(const std::vector<uint8_t>& specificKeyDiversifier)
    {
        if (!specificKeyDiversifier.empty()) {
            if (!Arrays::equals(specificKeyDiversifier, mCurrentKeyDiversifier)) {
                mCurrentKeyDiversifier = specificKeyDiversifier;
                prepareSelectDiversifier();
            }
        } else {
            prepareSelectDiversifierIfNeeded();
        }
    }
 
    void prepareSelectDiversifierIfNeeded()
    {
        if (!Arrays::equals(mCurrentKeyDiversifier, mDefaultKeyDiversifier)) {
            mCurrentKeyDiversifier = mDefaultKeyDiversifier;
            prepareSelectDiversifier();
        }
    }
 
private:
    const std::unique_ptr<Logger> mLogger =
        LoggerFactory::getLogger(typeid(CommonSamTransactionManagerAdapter));
 
    const std::string MSG_INPUT_OUTPUT_DATA = "input/output data";
    const std::string MSG_SIGNATURE_SIZE = "signature size";
    const std::string MSG_KEY_DIVERSIFIER_SIZE_IS_IN_RANGE_1_8 =
        "key diversifier size is in range [1..8]";
 
    /* Final fields */
    const std::shared_ptr<ProxyReaderApi> mSamReader;
    const std::shared_ptr<CalypsoSamAdapter> mSam;
    const std::shared_ptr<CommonSecuritySettingAdapter<T>> mSecuritySetting;
 
    /*
     * C++: use AbstractApduCommand instead of AbstractSamCommand for vector vs. polymorphism
     * constaints.
     */
    std::vector<std::shared_ptr<AbstractApduCommand>> mSamCommands;
    const std::vector<uint8_t> mDefaultKeyDiversifier;
 
    /* Dynamic fields */
    std::vector<uint8_t> mCurrentKeyDiversifier;
 
    virtual std::shared_ptr<CardResponseApi> transmitCardRequest(
        const std::shared_ptr<CardRequestSpi> cardRequest)
    {
        std::shared_ptr<CardResponseApi> cardResponse = nullptr;
 
        try {
            cardResponse = mSamReader->transmitCardRequest(cardRequest, ChannelControl::KEEP_OPEN);
 
        } catch (const ReaderBrokenCommunicationException& e) {
            saveTransactionAuditData(cardRequest, e.getCardResponse());
            throw ReaderIOException(MSG_SAM_READER_COMMUNICATION_ERROR +
                                    MSG_WHILE_TRANSMITTING_COMMANDS +
                                    getTransactionAuditDataAsString(),
                                    std::make_shared<ReaderBrokenCommunicationException>(e));
 
        } catch (const CardBrokenCommunicationException& e) {
            saveTransactionAuditData(cardRequest, e.getCardResponse());
            throw SamIOException(MSG_SAM_COMMUNICATION_ERROR +
                                MSG_WHILE_TRANSMITTING_COMMANDS +
                                getTransactionAuditDataAsString(),
                                std::make_shared<CardBrokenCommunicationException>(e));
 
        } catch (const UnexpectedStatusWordException& e) {
            mLogger->debug("A SAM command has failed: %\n", e.getMessage());
            cardResponse = e.getCardResponse();
        }
 
        saveTransactionAuditData(cardRequest, cardResponse);
 
        return cardResponse;
    }
 
    virtual void prepareSelectDiversifier()
    {
        mSamCommands.push_back(std::make_shared<CmdSamSelectDiversifier>(mSam->getProductType(),
                                                                         mCurrentKeyDiversifier));
    }
};
 
}
}
}