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Create utility RPCs for PSBT

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decodepsbt takes a PSBT and decodes it to JSON

combinepsbt takes multiple PSBTs for the same tx and combines them.

finalizepsbt takes a PSBT and finalizes the inputs. If all inputs
are final, it extracts the network serialized transaction and returns
that instead of a PSBT unless instructed otherwise.

createpsbt is like createrawtransaction but for PSBTs instead of
raw transactions.

convertpsbt takes a network serialized transaction and converts it
into a psbt. The resulting psbt will lose all signature data and
an explicit flag must be set to allow transactions with signature
data to be converted.
This commit is contained in:
Andrew Chow
2018-06-28 19:04:40 -07:00
parent 8b5ef27937
commit c27fe419ef
5 changed files with 606 additions and 0 deletions
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23
src/core_write.cpp
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@@ -70,6 +70,13 @@ const std::map<unsigned char, std::string> mapSigHashTypes = {
{static_cast<unsigned char>(SIGHASH_SINGLE|SIGHASH_ANYONECANPAY), std::string("SINGLE|ANYONECANPAY")},
};
std::string SighashToStr(unsigned char sighash_type)
{
const auto& it = mapSigHashTypes.find(sighash_type);
if (it == mapSigHashTypes.end()) return "";
return it->second;
}
/**
* Create the assembly string representation of a CScript object.
* @param[in] script CScript object to convert into the asm string representation.
@@ -128,6 +135,22 @@ std::string EncodeHexTx(const CTransaction& tx, const int serializeFlags)
return HexStr(ssTx.begin(), ssTx.end());
}
void ScriptToUniv(const CScript& script, UniValue& out, bool include_address)
{
out.pushKV("asm", ScriptToAsmStr(script));
out.pushKV("hex", HexStr(script.begin(), script.end()));
std::vector<std::vector<unsigned char>> solns;
txnouttype type;
Solver(script, type, solns);
out.pushKV("type", GetTxnOutputType(type));
CTxDestination address;
if (include_address && ExtractDestination(script, address)) {
out.pushKV("address", EncodeDestination(address));
}
}
void ScriptPubKeyToUniv(const CScript& scriptPubKey,
UniValue& out, bool fIncludeHex)
{