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Delete more CCs #381

duke
Duke 4 months ago
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2 changed files with 0 additions and 196 deletions
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  1. 102
      src/cc/disputepayout.cpp
  2. 94
      src/cc/importpayout.cpp

102
src/cc/disputepayout.cpp
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@ -1,102 +0,0 @@
// Copyright (c) 2016-2023 The Hush developers
// Distributed under the GPLv3 software license, see the accompanying
// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
/******************************************************************************
* Copyright © 2014-2019 The SuperNET Developers. *
* *
* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
* the top-level directory of this distribution for the individual copyright *
* holder information and the developer policies on copyright and licensing. *
* *
* Unless otherwise agreed in a custom licensing agreement, no part of the *
* SuperNET software, including this file may be copied, modified, propagated *
* or distributed except according to the terms contained in the LICENSE file *
* *
* Removal or modification of this copyright notice is prohibited. *
* *
******************************************************************************/
#include <cryptoconditions.h>
#include "hash.h"
#include "chain.h"
#include "version.h"
#include "script/cc.h"
#include "cc/eval.h"
#include "cc/betprotocol.h"
#include "primitives/transaction.h"
/*
* Crypto-Condition EVAL method that resolves a dispute of a session
*
* IN: vm - AppVM virtual machine to verify states
* IN: params - condition params
* IN: disputeTx - transaction attempting to resolve dispute
* IN: nIn - index of input of dispute tx
*
* disputeTx: attempt to resolve a dispute
*
* in 0: Spends Session TX first output, reveals DisputeHeader
* out 0: OP_RETURN hash of payouts
*/
bool Eval::DisputePayout(AppVM &vm, std::vector<uint8_t> params, const CTransaction &disputeTx, unsigned int nIn)
{
if (disputeTx.vout.size() == 0) return Invalid("no-vouts");
// get payouts hash
uint256 payoutHash;
if (!GetOpReturnHash(disputeTx.vout[0].scriptPubKey, payoutHash))
return Invalid("invalid-payout-hash");
// load params
uint16_t waitBlocks;
std::vector<uint8_t> vmParams;
if (!E_UNMARSHAL(params, ss >> VARINT(waitBlocks); ss >> vmParams))
return Invalid("malformed-params");
// ensure that enough time has passed
{
CTransaction sessionTx;
CBlockIndex sessionBlock;
// if unconformed its too soon
if (!GetTxConfirmed(disputeTx.vin[0].prevout.hash, sessionTx, sessionBlock))
return Error("couldnt-get-parent");
if (GetCurrentHeight() < sessionBlock.GetHeight() + waitBlocks)
return Invalid("dispute-too-soon"); // Not yet
}
// get spends
std::vector<CTransaction> spends;
if (!GetSpendsConfirmed(disputeTx.vin[0].prevout.hash, spends))
return Error("couldnt-get-spends");
// verify result from VM
int maxLength = -1;
uint256 bestPayout;
for (int i=1; i<spends.size(); i++)
{
std::vector<unsigned char> vmState;
if (spends[i].vout.size() == 0) continue;
if (!GetOpReturnData(spends[i].vout[0].scriptPubKey, vmState)) continue;
auto out = vm.evaluate(vmParams, vmState);
uint256 resultHash = SerializeHash(out.second);
if (out.first > maxLength) {
maxLength = out.first;
bestPayout = resultHash;
}
// The below means that if for any reason there is a draw, the first dispute wins
else if (out.first == maxLength) {
if (bestPayout != payoutHash) {
fprintf(stderr, "WARNING: VM has multiple solutions of same length\n");
bestPayout = resultHash;
}
}
}
if (maxLength == -1) return Invalid("no-evidence");
return bestPayout == payoutHash ? Valid() : Invalid("wrong-payout");
}

94
src/cc/importpayout.cpp
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@ -1,94 +0,0 @@
// Copyright (c) 2016-2023 The Hush developers
// Distributed under the GPLv3 software license, see the accompanying
// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
/******************************************************************************
* Copyright © 2014-2019 The SuperNET Developers. *
* *
* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
* the top-level directory of this distribution for the individual copyright *
* holder information and the developer policies on copyright and licensing. *
* *
* Unless otherwise agreed in a custom licensing agreement, no part of the *
* SuperNET software, including this file may be copied, modified, propagated *
* or distributed except according to the terms contained in the LICENSE file *
* *
* Removal or modification of this copyright notice is prohibited. *
* *
******************************************************************************/
#include <cryptoconditions.h>
#include "main.h"
#include "chain.h"
#include "streams.h"
#include "cc/eval.h"
#include "cc/betprotocol.h"
#include "primitives/transaction.h"
/*
* Crypto-Condition EVAL method that verifies a payout against a transaction
* notarized on another chain.
*
* IN: params - condition params
* IN: importTx - Payout transaction on value chain (HUSH)
* IN: nIn - index of input of stake
*
* importTx: Spends stakeTx with payouts from asset chain
*
* in 0: Spends Stake TX and contains ImportPayout CC
* out 0: OP_RETURN MomProof, disputeTx
* out 1-: arbitrary payouts
*
* disputeTx: Spends sessionTx.0 (opener on asset chain)
*
* in 0: spends sessionTx.0
* in 1-: anything
* out 0: OP_RETURN hash of payouts
* out 1-: anything
*/
bool Eval::ImportPayout(const std::vector<uint8_t> params, const CTransaction &importTx, unsigned int nIn)
{
if (importTx.vout.size() == 0) return Invalid("no-vouts");
// load data from vout[0]
MoMProof proof;
CTransaction disputeTx;
{
std::vector<unsigned char> vopret;
GetOpReturnData(importTx.vout[0].scriptPubKey, vopret);
if (!E_UNMARSHAL(vopret, ss >> proof; ss >> disputeTx))
return Invalid("invalid-payload");
}
// Check disputeTx.0 shows correct payouts
{
uint256 givenPayoutsHash;
GetOpReturnHash(disputeTx.vout[0].scriptPubKey, givenPayoutsHash);
std::vector<CTxOut> payouts(importTx.vout.begin() + 1, importTx.vout.end());
if (givenPayoutsHash != SerializeHash(payouts))
return Invalid("wrong-payouts");
}
// Check disputeTx spends sessionTx.0
// condition ImportPayout params is session ID from other chain
{
uint256 sessionHash;
if (!E_UNMARSHAL(params, ss >> sessionHash))
return Invalid("malformed-params");
if (disputeTx.vin[0].prevout != COutPoint(sessionHash, 0))
return Invalid("wrong-session");
}
// Check disputeTx solves momproof from vout[0]
{
NotarizationData data;
if (!GetNotarizationData(proof.notarizationHash, data))
return Invalid("coudnt-load-mom");
if (data.MoM != proof.Exec(disputeTx.GetHash()))
return Invalid("mom-check-fail");
}
return Valid();
}
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