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Merge #19836: rpc: Properly deserialize txs with witness before signing

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33330778230961cfbf2a24de36b5877e395cc596 rpc: Adjust witness-tx deserialize error message (MarcoFalke)
cccc7525697e7b8d99b545e34f0f504c78ffdb94 rpc: Properly deserialize txs with witness before signing (MarcoFalke)

Pull request description:

  Signing a transaction can only happen when the transaction has inputs. A transaction with inputs can always be deserialized as witness-transaction. If `try_no_witness` decoding is attempted, this will lead to rare intermittent failures.

  Fixes #18803

ACKs for top commit:
  achow101:
    ACK 33330778230961cfbf2a24de36b5877e395cc596
  ajtowns:
    ACK 33330778230961cfbf2a24de36b5877e395cc596

Tree-SHA512: 73f8a5cdfe03fb0e68908d2fa09752c346406f455694a020ec0dd1267ef8f0a583b8e84063ea74aac127106dd193b72623ca6d81469a94b3f5b3c766ebf2c42b
This commit is contained in:
fanquake 2020-10-16 11:31:12 +08:00 committed by PastaPastaPasta
parent 1bd4d8de71
commit afb8f35b51
4 changed files with 11 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/rpc/mining.cpp
View File

@ -352,7 +352,7 @@ static UniValue generateblock(const JSONRPCRequest& request)
txs.push_back(MakeTransactionRef(std::move(mtx)));
} else {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, strprintf("Transaction decode failed for %s", str));
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, strprintf("Transaction decode failed for %s. Make sure the tx has at least one input.", str));
}
}

12
src/rpc/rawtransaction.cpp
View File

@ -636,7 +636,7 @@ static UniValue combinerawtransaction(const JSONRPCRequest& request)
for (unsigned int idx = 0; idx < txs.size(); idx++) {
if (!DecodeHexTx(txVariants[idx], txs[idx].get_str())) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, strprintf("TX decode failed for tx %d", idx));
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, strprintf("TX decode failed for tx %d. Make sure the tx has at least one input.", idx));
}
}
@ -757,7 +757,7 @@ static UniValue signrawtransactionwithkey(const JSONRPCRequest& request)
CMutableTransaction mtx;
if (!DecodeHexTx(mtx, request.params[0].get_str())) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed. Make sure the tx has at least one input.");
}
FillableSigningProvider keystore;
@ -823,10 +823,10 @@ UniValue sendrawtransaction(const JSONRPCRequest& request)
UniValue::VBOOL
});
// parse hex string from parameter
CMutableTransaction mtx;
if (!DecodeHexTx(mtx, request.params[0].get_str()))
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
if (!DecodeHexTx(mtx, request.params[0].get_str())) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed. Make sure the tx has at least one input.");
}
CTransactionRef tx(MakeTransactionRef(std::move(mtx)));
const CFeeRate max_raw_tx_fee_rate = request.params[1].isNull() ?
@ -898,7 +898,7 @@ static UniValue testmempoolaccept(const JSONRPCRequest& request)
CMutableTransaction mtx;
if (!DecodeHexTx(mtx, request.params[0].get_array()[0].get_str())) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed. Make sure the tx has at least one input.");
}
CTransactionRef tx(MakeTransactionRef(std::move(mtx)));
const uint256& tx_hash = tx->GetHash();

5
src/wallet/rpcdump.cpp
View File

@ -298,8 +298,9 @@ UniValue importprunedfunds(const JSONRPCRequest& request)
CWallet* const pwallet = wallet.get();
CMutableTransaction tx;
if (!DecodeHexTx(tx, request.params[0].get_str()))
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
if (!DecodeHexTx(tx, request.params[0].get_str())) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed. Make sure the tx has at least one input.");
}
uint256 hashTx = tx.GetHash();
CWalletTx wtx(pwallet, MakeTransactionRef(std::move(tx)));

2
src/wallet/rpcwallet.cpp
View File

@ -3464,7 +3464,7 @@ UniValue signrawtransactionwithwallet(const JSONRPCRequest& request)
CMutableTransaction mtx;
if (!DecodeHexTx(mtx, request.params[0].get_str())) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed. Make sure the tx has at least one input.");
}
// Sign the transaction