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more error checks

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This commit is contained in:
blackjok3r
2018-10-25 16:39:17 +08:00
parent 900f9fc8ec
commit 8cec48894b
1 changed files with 23 additions and 2 deletions
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25
src/rpcblockchain.cpp
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@@ -361,17 +361,22 @@ UniValue getdatafromblock(const UniValue& params, bool fHelp)
int lastseqid = 0;
int i = 0;
int did1 = 0;
int skippedtxs = 0;
int failed = 0;
static std::string streamid,firsttxid;
static int firsttxnHeight;
std::string blockdata;
fprintf(stderr, "number of tx in block: %ld\n", block.vtx.size());
// Iif block tx size is > 2 then we can do this
if ( block.vtx.size() > 2 ) {
if ( block.vtx.size() > 2 )
{
BOOST_FOREACH(const CTransaction&tx, block.vtx)
{
// ignore first and last TX and any TX that does not have 3 vouts.
if ( (i == 0) || (i == (block.vtx.size() -1)) || (tx.vout.size() != 3) )
{
fprintf(stderr, "skipped tx number: %d\n",i);
skippedtxs = skippedtxs + 1;
} else {
std::string opretstr = HexStr(tx.vout[2].scriptPubKey.begin(), tx.vout[2].scriptPubKey.end());
// scriptPubKey is longer than 81, should mean its an OP_RETURN.
@@ -389,6 +394,8 @@ UniValue getdatafromblock(const UniValue& params, bool fHelp)
firsttxid = idstr;
} else if (firsttxid.empty()) {
firsttxid.append(idstr);
} else if ( firsttxid != idstr ) {
printf("firsttxid.%s idstr.%s change firsttxid and wipe streamid?\n",firsttxid.c_str(),idstr.c_str());
}
if ( seqid == (lastseqid + 1) || did1 == 0 ) {
@@ -403,6 +410,9 @@ UniValue getdatafromblock(const UniValue& params, bool fHelp)
did1 = 1;
}
lastseqid = seqid;
} else {
skippedtxs = skippedtxs + 1;
fprintf(stderr, "skipped tx number: %d\n",i);
}
// function here to extract seqid from first and last TX
// we an push the data or not depending on input from RPC.
@@ -415,7 +425,14 @@ UniValue getdatafromblock(const UniValue& params, bool fHelp)
if (GetTransaction(firsttxid_256,firsttx,hash,false)) {
std::string firststreamid = HexStr(firsttx.vout[2].scriptPubKey.begin(), firsttx.vout[2].scriptPubKey.end());
streamid.append(firststreamid.substr (8,64));
printf("block hash: %s\n",hash.ToString().c_str());
BlockMap::iterator mi = mapBlockIndex.find(hash);
if (mi != mapBlockIndex.end() && (*mi).second) {
CBlockIndex* pindex = (*mi).second;
if (chainActive.Contains(pindex)) {
firsttxnHeight = pindex->nHeight;
printf("block hash: %s block height: %d\n",hash.ToString().c_str(),firsttxnHeight);
}
}
}
}
std::string decodedstreamid;
@@ -428,6 +445,10 @@ UniValue getdatafromblock(const UniValue& params, bool fHelp)
result.push_back(Pair("data", blockdata));
}
} else {
failed = 1;
}
if ( failed == 1 || skippedtxs == i ) {
result.push_back(Pair("error","there is no data in this block."));
}
return result;