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Ignore blocks that do not match the filter in getmerkleblocks rpc (#2973)

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Also clarify method description a bit
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UdjinM6 2019-06-13 12:04:07 +03:00 committed by GitHub
parent 4739daddc8
commit bfcfb70d8c
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1 changed files with 13 additions and 4 deletions
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17
src/rpc/blockchain.cpp
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@ -838,7 +838,7 @@ UniValue getmerkleblocks(const JSONRPCRequest& request)
if (request.fHelp || request.params.size() < 1 || request.params.size() > 3)
throw std::runtime_error(
"getmerkleblocks \"filter\" \"hash\" ( count )\n"
"\nReturns an array of items with information about <count> merkleblocks starting from <hash> which match <filter>.\n"
"\nReturns an array of hex-encoded merkleblocks for <count> blocks starting from <hash> which match <filter>.\n"
"\nArguments:\n"
"1. \"filter\" (string, required) The hex encoded bloom filter\n"
"2. \"hash\" (string, required) The block hash\n"
@ -899,16 +899,25 @@ UniValue getmerkleblocks(const JSONRPCRequest& request)
for (; pblockindex; pblockindex = chainActive.Next(pblockindex))
{
if (--nCount < 0) {
break;
}
if (!ReadBlockFromDisk(block, pblockindex, Params().GetConsensus())) {
// this shouldn't happen, we already checked pruning case earlier
throw JSONRPCError(RPC_MISC_ERROR, "Block not found on disk");
}
CMerkleBlock merkleblock(block, filter);
if (merkleblock.vMatchedTxn.empty()) {
// ignore blocks that do not match the filter
continue;
}
CDataStream ssMerkleBlock(SER_NETWORK, PROTOCOL_VERSION);
ssMerkleBlock << CMerkleBlock(block, filter);
ssMerkleBlock << merkleblock;
std::string strHex = HexStr(ssMerkleBlock);
arrMerkleBlocks.push_back(strHex);
if (--nCount <= 0)
break;
}
return arrMerkleBlocks;
}