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mock up DisputePayout

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This commit is contained in:
Scott Sadler
2018-03-30 17:20:02 -03:00
parent 2c8d8268dd
commit 9ef101bc21
5 changed files with 179 additions and 32 deletions
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44
src/cc/importpayout.cpp
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@@ -2,30 +2,10 @@
#include "streams.h"
#include "chain.h"
#include "main.h"
#include "cc/eval.h"
#include "cryptoconditions/include/cryptoconditions.h"
bool GetPushData(const CScript &sig, std::vector<unsigned char> &data)
{
opcodetype opcode;
auto pc = sig.begin();
if (sig.GetOp(pc, opcode, data)) return opcode > OP_0 && opcode <= OP_PUSHDATA4;
return false;
}
bool GetOpReturnData(const CScript &sig, std::vector<unsigned char> &data)
{
auto pc = sig.begin();
opcodetype opcode;
if (sig.GetOp2(pc, opcode, NULL))
if (opcode == OP_RETURN)
if (sig.GetOp(pc, opcode, data))
return opcode > OP_0 && opcode <= OP_PUSHDATA4;
return false;
}
class MomProof
{
public:
@@ -128,10 +108,10 @@ uint256 ExecMerkle(uint256 hash, const std::vector<uint256>& vMerkleBranch, int
*
* in 0: Spends Stake TX and contains ImportPayout CC
* out 0: OP_RETURN MomProof
* out 1: OP_RETURN serialized exportTx from other chain
* out 1: OP_RETURN serialized disputeTx from other chain
* out 2-: arbitrary payouts
*
* exportTx: Spends sessionTx.0 (opener on asset chain)
* disputeTx: Spends sessionTx.0 (opener on asset chain)
*
* in 0: spends sessionTx.0
* in 1-: anything
@@ -149,30 +129,30 @@ bool CheckImportPayout(const CC *cond, const CTransaction *payoutTx, int nIn)
uint256 payoutsHash = SerializeHash(payouts);
std::vector<unsigned char> vPayoutsHash(payoutsHash.begin(), payoutsHash.end());
// load exportTx from vout[1]
CTransaction exportTx;
// load disputeTx from vout[1]
CTransaction disputeTx;
{
std::vector<unsigned char> exportData;
if (!GetOpReturnData(payoutTx->vout[1].scriptPubKey, exportData)) return 0;
CDataStream(exportData, SER_DISK, PROTOCOL_VERSION) >> exportTx;
CDataStream(exportData, SER_DISK, PROTOCOL_VERSION) >> disputeTx;
// TODO: end of stream? exception?
}
// Check exportTx.0 is vPayoutsHash
// Check disputeTx.0 is vPayoutsHash
std::vector<unsigned char> exportPayoutsHash;
if (!GetOpReturnData(exportTx.vout[0].scriptPubKey, exportPayoutsHash)) return 0;
if (!GetOpReturnData(disputeTx.vout[0].scriptPubKey, exportPayoutsHash)) return 0;
if (exportPayoutsHash != vPayoutsHash) return 0;
// Check exportTx spends sessionTx.0
// Check disputeTx spends sessionTx.0
// condition ImportPayout params is session ID from other chain
{
if (cond->paramsBinLength != 32) return 0;
COutPoint prevout = exportTx.vin[0].prevout;
COutPoint prevout = disputeTx.vin[0].prevout;
if (memcmp(prevout.hash.begin(), cond->paramsBin, 32) != 0 ||
prevout.n != 0) return 0;
}
// Check exportTx solves momproof from vout[0]
// Check disputeTx solves momproof from vout[0]
{
std::vector<unsigned char> vchMomProof;
if (!GetOpReturnData(payoutTx->vout[0].scriptPubKey, vchMomProof)) return 0;
@@ -183,7 +163,7 @@ bool CheckImportPayout(const CC *cond, const CTransaction *payoutTx, int nIn)
uint256 mom;
if (!GetMoM(momProof.notaryHash, mom)) return 0;
uint256 proofResult = ExecMerkle(exportTx.GetHash(), momProof.branch, momProof.nPos);
uint256 proofResult = ExecMerkle(disputeTx.GetHash(), momProof.branch, momProof.nPos);
if (proofResult != mom) return 0;
}