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Merge #10146: Better error handling for submitblock

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30f30c0 Add braces to submitblock per current style. (Gregory Maxwell)
4f15ea1 Check transaction count early in submitblock. (Gregory Maxwell)
ada0caa Make GetWitnessCommitmentIndex callable on blocks without a coinbase txn. (Gregory Maxwell)

Tree-SHA512: 02dcd337ad9cdd8e4fa6a42c009d016026d1229c193676ed6fcc9ce55e924fedec57f516ac1e95c3db0985243ba908307338ce783a70416cb292bed881002bfc
This commit is contained in:
Wladimir J. van der Laan 2017-04-04 08:58:53 +02:00
commit 72bc7e1303
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GPG Key ID: 74810B012346C9A6
2 changed files with 22 additions and 11 deletions
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25
src/rpc/mining.cpp
View File

@ -720,7 +720,7 @@ protected:
UniValue submitblock(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
if (request.fHelp || request.params.size() < 1 || request.params.size() > 2) {
throw std::runtime_error(
"submitblock \"hexdata\" ( \"jsonparametersobject\" )\n"
"\nAttempts to submit new block to network.\n"
@ -738,11 +738,17 @@ UniValue submitblock(const JSONRPCRequest& request)
+ HelpExampleCli("submitblock", "\"mydata\"")
+ HelpExampleRpc("submitblock", "\"mydata\"")
);
}
std::shared_ptr<CBlock> blockptr = std::make_shared<CBlock>();
CBlock& block = *blockptr;
if (!DecodeHexBlk(block, request.params[0].get_str()))
if (!DecodeHexBlk(block, request.params[0].get_str())) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Block decode failed");
}
if (block.vtx.empty() || !block.vtx[0]->IsCoinBase()) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Block does not start with a coinbase");
}
uint256 hash = block.GetHash();
bool fBlockPresent = false;
@ -751,10 +757,12 @@ UniValue submitblock(const JSONRPCRequest& request)
BlockMap::iterator mi = mapBlockIndex.find(hash);
if (mi != mapBlockIndex.end()) {
CBlockIndex *pindex = mi->second;
if (pindex->IsValid(BLOCK_VALID_SCRIPTS))
if (pindex->IsValid(BLOCK_VALID_SCRIPTS)) {
return "duplicate";
if (pindex->nStatus & BLOCK_FAILED_MASK)
}
if (pindex->nStatus & BLOCK_FAILED_MASK) {
return "duplicate-invalid";
}
// Otherwise, we might only have the header - process the block before returning
fBlockPresent = true;
}
@ -772,14 +780,15 @@ UniValue submitblock(const JSONRPCRequest& request)
RegisterValidationInterface(&sc);
bool fAccepted = ProcessNewBlock(Params(), blockptr, true, NULL);
UnregisterValidationInterface(&sc);
if (fBlockPresent)
{
if (fAccepted && !sc.found)
if (fBlockPresent) {
if (fAccepted && !sc.found) {
return "duplicate-inconclusive";
}
return "duplicate";
}
if (!sc.found)
if (!sc.found) {
return "inconclusive";
}
return BIP22ValidationResult(sc.state);
}

8
src/validation.cpp
View File

@ -2901,9 +2901,11 @@ bool IsWitnessEnabled(const CBlockIndex* pindexPrev, const Consensus::Params& pa
static int GetWitnessCommitmentIndex(const CBlock& block)
{
int commitpos = -1;
for (size_t o = 0; o < block.vtx[0]->vout.size(); o++) {
if (block.vtx[0]->vout[o].scriptPubKey.size() >= 38 && block.vtx[0]->vout[o].scriptPubKey[0] == OP_RETURN && block.vtx[0]->vout[o].scriptPubKey[1] == 0x24 && block.vtx[0]->vout[o].scriptPubKey[2] == 0xaa && block.vtx[0]->vout[o].scriptPubKey[3] == 0x21 && block.vtx[0]->vout[o].scriptPubKey[4] == 0xa9 && block.vtx[0]->vout[o].scriptPubKey[5] == 0xed) {
commitpos = o;
if (!block.vtx.empty()) {
for (size_t o = 0; o < block.vtx[0]->vout.size(); o++) {
if (block.vtx[0]->vout[o].scriptPubKey.size() >= 38 && block.vtx[0]->vout[o].scriptPubKey[0] == OP_RETURN && block.vtx[0]->vout[o].scriptPubKey[1] == 0x24 && block.vtx[0]->vout[o].scriptPubKey[2] == 0xaa && block.vtx[0]->vout[o].scriptPubKey[3] == 0x21 && block.vtx[0]->vout[o].scriptPubKey[4] == 0xa9 && block.vtx[0]->vout[o].scriptPubKey[5] == 0xed) {
commitpos = o;
}
}
}
return commitpos;