diff options
Diffstat (limited to 'src/rpc')
| -rw-r--r-- | src/rpc/rawtransaction_util.cpp | 56 | ||||
| -rw-r--r-- | src/rpc/rawtransaction_util.h | 2 |
2 files changed, 16 insertions, 42 deletions
diff --git a/src/rpc/rawtransaction_util.cpp b/src/rpc/rawtransaction_util.cpp index 40334883c5..54baec6c6f 100644 --- a/src/rpc/rawtransaction_util.cpp +++ b/src/rpc/rawtransaction_util.cpp @@ -272,55 +272,27 @@ void SignTransaction(CMutableTransaction& mtx, const SigningProvider* keystore, { int nHashType = ParseSighashString(hashType); - bool fHashSingle = ((nHashType & ~SIGHASH_ANYONECANPAY) == SIGHASH_SINGLE); - // Script verification errors - UniValue vErrors(UniValue::VARR); - - // Use CTransaction for the constant parts of the - // transaction to avoid rehashing. - const CTransaction txConst(mtx); - // Sign what we can: - for (unsigned int i = 0; i < mtx.vin.size(); i++) { - CTxIn& txin = mtx.vin[i]; - auto coin = coins.find(txin.prevout); - if (coin == coins.end() || coin->second.IsSpent()) { - TxInErrorToJSON(txin, vErrors, "Input not found or already spent"); - continue; - } - const CScript& prevPubKey = coin->second.out.scriptPubKey; - const CAmount& amount = coin->second.out.nValue; - - SignatureData sigdata = DataFromTransaction(mtx, i, coin->second.out); - // Only sign SIGHASH_SINGLE if there's a corresponding output: - if (!fHashSingle || (i < mtx.vout.size())) { - ProduceSignature(*keystore, MutableTransactionSignatureCreator(&mtx, i, amount, nHashType), prevPubKey, sigdata); - } - - UpdateInput(txin, sigdata); + std::map<int, std::string> input_errors; - // amount must be specified for valid segwit signature - if (amount == MAX_MONEY && !txin.scriptWitness.IsNull()) { - throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Missing amount for %s", coin->second.out.ToString())); - } + bool complete = SignTransaction(mtx, keystore, coins, nHashType, input_errors); + SignTransactionResultToJSON(mtx, complete, coins, input_errors, result); +} - ScriptError serror = SCRIPT_ERR_OK; - if (!VerifyScript(txin.scriptSig, prevPubKey, &txin.scriptWitness, STANDARD_SCRIPT_VERIFY_FLAGS, TransactionSignatureChecker(&txConst, i, amount), &serror)) { - if (serror == SCRIPT_ERR_INVALID_STACK_OPERATION) { - // Unable to sign input and verification failed (possible attempt to partially sign). - TxInErrorToJSON(txin, vErrors, "Unable to sign input, invalid stack size (possibly missing key)"); - } else if (serror == SCRIPT_ERR_SIG_NULLFAIL) { - // Verification failed (possibly due to insufficient signatures). - TxInErrorToJSON(txin, vErrors, "CHECK(MULTI)SIG failing with non-zero signature (possibly need more signatures)"); - } else { - TxInErrorToJSON(txin, vErrors, ScriptErrorString(serror)); - } +void SignTransactionResultToJSON(CMutableTransaction& mtx, bool complete, const std::map<COutPoint, Coin>& coins, std::map<int, std::string>& input_errors, UniValue& result) +{ + // Make errors UniValue + UniValue vErrors(UniValue::VARR); + for (const auto& err_pair : input_errors) { + if (err_pair.second == "Missing amount") { + // This particular error needs to be an exception for some reason + throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Missing amount for %s", coins.at(mtx.vin.at(err_pair.first).prevout).out.ToString())); } + TxInErrorToJSON(mtx.vin.at(err_pair.first), vErrors, err_pair.second); } - bool fComplete = vErrors.empty(); result.pushKV("hex", EncodeHexTx(CTransaction(mtx))); - result.pushKV("complete", fComplete); + result.pushKV("complete", complete); if (!vErrors.empty()) { if (result.exists("errors")) { vErrors.push_backV(result["errors"].getValues()); diff --git a/src/rpc/rawtransaction_util.h b/src/rpc/rawtransaction_util.h index 4750fd64ed..436db5dc60 100644 --- a/src/rpc/rawtransaction_util.h +++ b/src/rpc/rawtransaction_util.h @@ -6,6 +6,7 @@ #define BITCOIN_RPC_RAWTRANSACTION_UTIL_H #include <map> +#include <string> class FillableSigningProvider; class UniValue; @@ -24,6 +25,7 @@ class SigningProvider; * @param result JSON object where signed transaction results accumulate */ void SignTransaction(CMutableTransaction& mtx, const SigningProvider* keystore, const std::map<COutPoint, Coin>& coins, const UniValue& hashType, UniValue& result); +void SignTransactionResultToJSON(CMutableTransaction& mtx, bool complete, const std::map<COutPoint, Coin>& coins, std::map<int, std::string>& input_errors, UniValue& result); /** * Parse a prevtxs UniValue array and get the map of coins from it |