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Switch away from exceptions in refactored tx code

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After refactoring general-purpose PSBT and transaction code out of RPC code,
for use in the GUI, it's no longer appropriate to throw exceptions. Instead we
now return bools for success, and take an output parameter for an error object.
We still use JSONRPCError() for the error objects, since only RPC callers
actually care about the error codes.
This commit is contained in:
Glenn Willen
2019-02-09 20:51:33 -08:00
parent c6c3d42a7d
commit bd0dbe8763
10 changed files with 159 additions and 24 deletions
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14
src/wallet/psbtwallet.cpp
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@@ -2,14 +2,13 @@
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <rpc/protocol.h>
#include <wallet/psbtwallet.h>
bool FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& psbtx, int sighash_type, bool sign, bool bip32derivs)
bool FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& psbtx, TransactionError& error, bool& complete, int sighash_type, bool sign, bool bip32derivs)
{
LOCK(pwallet->cs_wallet);
// Get all of the previous transactions
bool complete = true;
complete = true;
for (unsigned int i = 0; i < psbtx.tx->vin.size(); ++i) {
const CTxIn& txin = psbtx.tx->vin[i];
PSBTInput& input = psbtx.inputs.at(i);
@@ -20,7 +19,8 @@ bool FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& psbtx, int sig
// Verify input looks sane. This will check that we have at most one uxto, witness or non-witness.
if (!input.IsSane()) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "PSBT input is not sane.");
error = TransactionError::INVALID_PSBT;
return false;
}
// If we have no utxo, grab it from the wallet.
@@ -37,7 +37,8 @@ bool FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& psbtx, int sig
// Get the Sighash type
if (sign && input.sighash_type > 0 && input.sighash_type != sighash_type) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Specified Sighash and sighash in PSBT do not match.");
error = TransactionError::SIGHASH_MISMATCH;
return false;
}
complete &= SignPSBTInput(HidingSigningProvider(pwallet, !sign, !bip32derivs), psbtx, i, sighash_type);
@@ -56,5 +57,6 @@ bool FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& psbtx, int sig
ProduceSignature(HidingSigningProvider(pwallet, true, !bip32derivs), creator, out.scriptPubKey, sigdata);
psbt_out.FromSignatureData(sigdata);
}
return complete;
return true;
}