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Merge #11087: Diagnose unsuitable outputs in lockunspent().

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28f8b66 Diagnose unsuitable outputs in lockunspent(). (Eelis)

Pull request description:

  Fixes #2667.

  This is a simplified version of pull request #3574, which was abandoned by its author.

  I added some tests as well.

Tree-SHA512: e63e00dec8b1b232079380183805cb0b0b18c78ea6bea769837949aab984689d7f68b2ccfe66b1873517b040b9e616ce0eb058575c3d4382aa8c26eebcf1f14e
This commit is contained in:
Wladimir J. van der Laan
2017-11-16 12:23:55 +01:00
parent 084f52f38d 28f8b66577
commit 99bc0b428b
2 changed files with 60 additions and 15 deletions
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63
src/wallet/rpcwallet.cpp
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@@ -2531,12 +2531,15 @@ UniValue lockunspent(const JSONRPCRequest& request)
RPCTypeCheckArgument(request.params[1], UniValue::VARR);
UniValue outputs = request.params[1].get_array();
for (unsigned int idx = 0; idx < outputs.size(); idx++) {
const UniValue& output = outputs[idx];
if (!output.isObject())
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected object");
const UniValue& o = output.get_obj();
const UniValue& output_params = request.params[1];
// Create and validate the COutPoints first.
std::vector<COutPoint> outputs;
outputs.reserve(output_params.size());
for (unsigned int idx = 0; idx < output_params.size(); idx++) {
const UniValue& o = output_params[idx].get_obj();
RPCTypeCheckObj(o,
{
@@ -2544,20 +2547,50 @@ UniValue lockunspent(const JSONRPCRequest& request)
{"vout", UniValueType(UniValue::VNUM)},
});
std::string txid = find_value(o, "txid").get_str();
if (!IsHex(txid))
const std::string& txid = find_value(o, "txid").get_str();
if (!IsHex(txid)) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected hex txid");
}
int nOutput = find_value(o, "vout").get_int();
if (nOutput < 0)
const int nOutput = find_value(o, "vout").get_int();
if (nOutput < 0) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, vout must be positive");
}
COutPoint outpt(uint256S(txid), nOutput);
const COutPoint outpt(uint256S(txid), nOutput);
if (fUnlock)
pwallet->UnlockCoin(outpt);
else
pwallet->LockCoin(outpt);
const auto it = pwallet->mapWallet.find(outpt.hash);
if (it == pwallet->mapWallet.end()) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, unknown transaction");
}
const CWalletTx& trans = it->second;
if (outpt.n >= trans.tx->vout.size()) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, vout index out of bounds");
}
if (pwallet->IsSpent(outpt.hash, outpt.n)) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected unspent output");
}
const bool is_locked = pwallet->IsLockedCoin(outpt.hash, outpt.n);
if (fUnlock && !is_locked) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected locked output");
}
if (!fUnlock && is_locked) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, output already locked");
}
outputs.push_back(outpt);
}
// Atomically set (un)locked status for the outputs.
for (const COutPoint& outpt : outputs) {
if (fUnlock) pwallet->UnlockCoin(outpt);
else pwallet->LockCoin(outpt);
}
return true;