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Expose transaction data via BaseSignatureChecker

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This commit is contained in:
sanket1729 2021-08-25 08:43:33 +00:00
parent 007912eea4
commit 61b5152d44
2 changed files with 87 additions and 0 deletions
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44
src/script/interpreter.cpp
View file

@ -5,6 +5,7 @@
#include <script/interpreter.h>
#include <consensus/consensus.h>
#include <crypto/ripemd160.h>
#include <crypto/sha1.h>
#include <crypto/sha256.h>
@ -2398,6 +2399,49 @@ bool GenericTransactionSignatureChecker<T>::CheckSequence(const CScriptNum& nSeq
return true;
}
template <class T>
uint32_t GenericTransactionSignatureChecker<T>::GetLockTime() const
{
return txTo->nLockTime;
}
template <class T>
int32_t GenericTransactionSignatureChecker<T>::GetTxVersion() const
{
return txTo->nVersion;
}
template <class T>
const std::vector<CTxIn>* GenericTransactionSignatureChecker<T>::GetTxvIn() const
{
return &(txTo->vin);
}
template <class T>
const std::vector<CTxOut>* GenericTransactionSignatureChecker<T>::GetTxvOut() const
{
return &(txTo->vout);
}
template <class T>
uint64_t GenericTransactionSignatureChecker<T>::GetTxWeight() const
{
// line copied from GetTransactionWeight() in src/consensus/validation.h
return ::GetSerializeSize(*txTo, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS) * (WITNESS_SCALE_FACTOR - 1) + ::GetSerializeSize(*txTo, PROTOCOL_VERSION);
}
template <class T>
const PrecomputedTransactionData* GenericTransactionSignatureChecker<T>::GetPrecomputedTransactionData() const
{
return txdata;
}
template <class T>
uint32_t GenericTransactionSignatureChecker<T>::GetnIn() const
{
return nIn;
}
// explicit instantiation
template class GenericTransactionSignatureChecker<CTransaction>;
template class GenericTransactionSignatureChecker<CMutableTransaction>;

43
src/script/interpreter.h
View file

@ -269,6 +269,41 @@ public:
return false;
}
virtual const std::vector<CTxIn>* GetTxvIn() const
{
return nullptr;
}
virtual const std::vector<CTxOut>* GetTxvOut() const
{
return nullptr;
}
virtual uint32_t GetLockTime() const
{
return 0;
}
virtual int32_t GetTxVersion() const
{
return 0;
}
virtual uint64_t GetTxWeight() const
{
return 0;
}
virtual const PrecomputedTransactionData* GetPrecomputedTransactionData() const
{
return nullptr;
}
virtual uint32_t GetnIn() const
{
return std::numeric_limits<uint32_t>::max();
}
virtual ~BaseSignatureChecker() {}
};
@ -292,6 +327,14 @@ public:
bool CheckSchnorrSignature(Span<const unsigned char> sig, Span<const unsigned char> pubkey, SigVersion sigversion, const ScriptExecutionData& execdata, ScriptError* serror = nullptr) const override;
bool CheckLockTime(const CScriptNum& nLockTime) const override;
bool CheckSequence(const CScriptNum& nSequence) const override;
const std::vector<CTxIn>* GetTxvIn() const override;
const std::vector<CTxOut>* GetTxvOut() const override;
uint32_t GetLockTime() const override;
int32_t GetTxVersion() const override;
uint64_t GetTxWeight() const override;
const PrecomputedTransactionData* GetPrecomputedTransactionData() const override;
uint32_t GetnIn() const override;
};
using TransactionSignatureChecker = GenericTransactionSignatureChecker<CTransaction>;