Submit.cpp

//------------------------------------------------------------------------------
/*
    This file is part of rippled: https://github.com/ripple/rippled
    Copyright (c) 2012-2014 Ripple Labs Inc.
 
    Permission to use, copy, modify, and/or distribute this software for any
    purpose  with  or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.
 
    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
 
#include <ripple/app/ledger/LedgerMaster.h>
#include <ripple/app/misc/HashRouter.h>
#include <ripple/app/misc/Transaction.h>
#include <ripple/app/tx/apply.h>
#include <ripple/net/RPCErr.h>
#include <ripple/protocol/ErrorCodes.h>
#include <ripple/resource/Fees.h>
#include <ripple/rpc/Context.h>
#include <ripple/rpc/impl/TransactionSign.h>
#include <ripple/rpc/GRPCHandlers.h>
#include <ripple/rpc/impl/RPCHelpers.h>
#include <ripple/rpc/impl/GRPCHelpers.h>
 
namespace ripple {
 
static NetworkOPs::FailHard getFailHard (RPC::JsonContext const& context)
{
    return NetworkOPs::doFailHard (
        context.params.isMember ("fail_hard")
        && context.params["fail_hard"].asBool ());
}
 
// {
//   tx_json: <object>,
//   secret: <secret>
// }
Json::Value doSubmit (RPC::JsonContext& context)
{
    context.loadType = Resource::feeMediumBurdenRPC;
 
    if (!context.params.isMember (jss::tx_blob))
    {
        auto const failType = getFailHard (context);
 
        if (context.role != Role::ADMIN && !context.app.config().canSign())
            return RPC::make_error (rpcNOT_SUPPORTED,
                "Signing is not supported by this server.");
 
        auto ret = RPC::transactionSubmit (
            context.params, failType, context.role,
            context.ledgerMaster.getValidatedLedgerAge(),
            context.app, RPC::getProcessTxnFn (context.netOps));
 
        ret[jss::deprecated] = "Signing support in the 'submit' command has been "
                               "deprecated and will be removed in a future version "
                               "of the server. Please migrate to a standalone "
                               "signing tool.";
 
        return ret;
    }
 
    Json::Value jvResult;
 
    auto ret = strUnHex (context.params[jss::tx_blob].asString ());
 
    if (!ret || !ret->size ())
        return rpcError (rpcINVALID_PARAMS);
 
    SerialIter sitTrans (makeSlice(*ret));
 
    std::shared_ptr<STTx const> stpTrans;
 
    try
    {
        stpTrans = std::make_shared<STTx const> (std::ref (sitTrans));
    }
    catch (std::exception& e)
    {
        jvResult[jss::error]        = "invalidTransaction";
        jvResult[jss::error_exception] = e.what ();
 
        return jvResult;
    }
 
 
    {
        if (!context.app.checkSigs())
            forceValidity(context.app.getHashRouter(),
                stpTrans->getTransactionID(), Validity::SigGoodOnly);
        auto [validity, reason] = checkValidity(context.app.getHashRouter(),
            *stpTrans, context.ledgerMaster.getCurrentLedger()->rules(),
                context.app.config());
        if (validity != Validity::Valid)
        {
            jvResult[jss::error] = "invalidTransaction";
            jvResult[jss::error_exception] = "fails local checks: " + reason;
 
            return jvResult;
        }
    }
 
    std::string reason;
    auto tpTrans = std::make_shared<Transaction> (
        stpTrans, reason, context.app);
    if (tpTrans->getStatus() != NEW)
    {
        jvResult[jss::error]            = "invalidTransaction";
        jvResult[jss::error_exception] = "fails local checks: " + reason;
 
        return jvResult;
    }
 
    try
    {
        auto const failType = getFailHard (context);
 
        context.netOps.processTransaction (
            tpTrans, isUnlimited (context.role), true, failType);
    }
    catch (std::exception& e)
    {
        jvResult[jss::error]           = "internalSubmit";
        jvResult[jss::error_exception] = e.what ();
 
        return jvResult;
    }
 
 
    try
    {
        jvResult[jss::tx_json] = tpTrans->getJson (JsonOptions::none);
        jvResult[jss::tx_blob] = strHex (
            tpTrans->getSTransaction ()->getSerializer ().peekData ());
 
        if (temUNCERTAIN != tpTrans->getResult ())
        {
            std::string sToken;
            std::string sHuman;
 
            transResultInfo (tpTrans->getResult (), sToken, sHuman);
 
            jvResult[jss::engine_result]           = sToken;
            jvResult[jss::engine_result_code]      = tpTrans->getResult ();
            jvResult[jss::engine_result_message]   = sHuman;
 
            auto const submitResult = tpTrans->getSubmitResult();
 
            jvResult[jss::accepted] = submitResult.any();
            jvResult[jss::applied] = submitResult.applied;
            jvResult[jss::broadcast] = submitResult.broadcast;
            jvResult[jss::queued] = submitResult.queued;
            jvResult[jss::kept] = submitResult.kept;
 
            if (auto currentLedgerState = tpTrans->getCurrentLedgerState())
            {
                jvResult[jss::account_sequence_next]
                    = safe_cast<Json::Value::UInt>(currentLedgerState->accountSeqNext);
                jvResult[jss::account_sequence_available]
                    = safe_cast<Json::Value::UInt>(currentLedgerState->accountSeqAvail);
                jvResult[jss::open_ledger_cost]
                    = to_string(currentLedgerState->minFeeRequired);
                jvResult[jss::validated_ledger_index]
                    = safe_cast<Json::Value::UInt>(currentLedgerState->validatedLedger);
            }
        }
 
        return jvResult;
    }
    catch (std::exception& e)
    {
        jvResult[jss::error]           = "internalJson";
        jvResult[jss::error_exception] = e.what ();
 
        return jvResult;
    }
}
 
std::pair<org::xrpl::rpc::v1::SubmitTransactionResponse, grpc::Status>
doSubmitGrpc(RPC::GRPCContext<org::xrpl::rpc::v1::SubmitTransactionRequest>& context)
{
    // return values
    org::xrpl::rpc::v1::SubmitTransactionResponse result;
    grpc::Status status = grpc::Status::OK;
 
    // input
    auto request = context.params;
 
    std::string const& tx = request.signed_transaction();
 
    // convert to blob
    Blob blob{tx.begin(), tx.end()};
 
    // serialize
    SerialIter sitTrans(makeSlice(blob));
    std::shared_ptr<STTx const> stpTrans;
    try
    {
        stpTrans = std::make_shared<STTx const>(std::ref(sitTrans));
    }
    catch (std::exception& e)
    {
        grpc::Status errorStatus{
            grpc::StatusCode::INVALID_ARGUMENT,
            "invalid transaction: " + std::string(e.what())};
        return {result, errorStatus};
    }
 
    // check validity
    {
        if (!context.app.checkSigs())
            forceValidity(
                context.app.getHashRouter(),
                stpTrans->getTransactionID(),
                Validity::SigGoodOnly);
        auto [validity, reason] = checkValidity(
            context.app.getHashRouter(),
            *stpTrans,
            context.ledgerMaster.getCurrentLedger()->rules(),
            context.app.config());
        if (validity != Validity::Valid)
        {
            grpc::Status errorStatus{grpc::StatusCode::INVALID_ARGUMENT,
                                     "invalid transaction: " + reason};
            return {result, errorStatus};
        }
    }
 
    std::string reason;
    auto tpTrans = std::make_shared<Transaction>(stpTrans, reason, context.app);
    if (tpTrans->getStatus() != NEW)
    {
        grpc::Status errorStatus{grpc::StatusCode::INVALID_ARGUMENT,
                                 "invalid transaction: " + reason};
        return {result, errorStatus};
    }
 
    try
    {
        auto const failType = NetworkOPs::doFailHard(request.fail_hard());
 
        // submit to network
        context.netOps.processTransaction(
            tpTrans, isUnlimited(context.role), true, failType);
    }
    catch (std::exception& e)
    {
        grpc::Status errorStatus{
            grpc::StatusCode::INVALID_ARGUMENT,
            "invalid transaction : " + std::string(e.what())};
        return {result, errorStatus};
    }
 
    // return preliminary result
    if (temUNCERTAIN != tpTrans->getResult())
    {
        RPC::convert(*result.mutable_engine_result(), tpTrans->getResult());
 
        std::string sToken;
        std::string sHuman;
 
        transResultInfo(tpTrans->getResult(), sToken, sHuman);
 
        result.mutable_engine_result()->set_result(sToken);
        result.set_engine_result_code(TERtoInt(tpTrans->getResult()));
        result.set_engine_result_message(sHuman);
 
        uint256 hash = tpTrans->getID();
        result.set_hash(hash.data(), hash.size());
    }
    return {result, status};
}
 
}  // namespace ripple