/**
* Utility routine to construct a "name info" object to return. This is used
* for name_show and also name_list.
* @param name The name.
* @param value The name's value.
* @param outp The last update's outpoint.
* @param addr The name's address script.
* @param height The name's last update height.
* @return A JSON object to return.
*/
UniValue
getNameInfo (const valtype& name, const valtype& value, const COutPoint& outp,
const CScript& addr, int height)
{
UniValue obj(UniValue::VOBJ);
obj.push_back (Pair ("name", ValtypeToString (name)));
obj.push_back (Pair ("value", ValtypeToString (value)));
obj.push_back (Pair ("txid", outp.hash.GetHex ()));
obj.push_back (Pair ("vout", static_cast<int> (outp.n)));
/* Try to extract the address. May fail if we can't parse the script
as a "standard" script. */
CTxDestination dest;
CBitcoinAddress addrParsed;
std::string addrStr;
if (ExtractDestination (addr, dest) && addrParsed.Set (dest))
addrStr = addrParsed.ToString ();
else
addrStr = "<nonstandard>";
obj.push_back (Pair ("address", addrStr));
/* Calculate expiration data. */
const int curHeight = chainActive.Height ();
const Consensus::Params& params = Params ().GetConsensus ();
const int expireDepth = params.rules->NameExpirationDepth (curHeight);
const int expireHeight = height + expireDepth;
const int expiresIn = expireHeight - curHeight;
const bool expired = (expiresIn <= 0);
obj.push_back (Pair ("height", height));
obj.push_back (Pair ("expires_in", expiresIn));
obj.push_back (Pair ("expired", expired));
return obj;
}
void refreshName(const std::vector<unsigned char> &inName)
{
LOCK(cs_main);
NameTableEntry nameObj(ValtypeToString(inName),
std::string(""),
NameTableEntry::NAME_NON_EXISTING);
CNameData data;
{
LOCK (cs_main);
if (!pcoinsTip->GetName (inName, data))
{
LogPrintf ("name not found: '%s'\n", ValtypeToString (inName).c_str());
return;
}
nameObj = NameTableEntry(ValtypeToString(inName),
ValtypeToString(data.getValue ()),
data.getHeight ());
}
// Find name in model
QList<NameTableEntry>::iterator lower = qLowerBound(
cachedNameTable.begin(), cachedNameTable.end(), nameObj.name, NameTableEntryLessThan());
QList<NameTableEntry>::iterator upper = qUpperBound(
cachedNameTable.begin(), cachedNameTable.end(), nameObj.name, NameTableEntryLessThan());
bool inModel = (lower != upper);
if (inModel)
{
// In model - update or delete
if (nameObj.nHeight != NameTableEntry::NAME_NON_EXISTING)
{
LogPrintf ("refreshName result : %s - refreshed in the table\n", qPrintable(nameObj.name));
updateEntry(nameObj.name, nameObj.value, nameObj.nHeight, CT_UPDATED);
}
else
{
LogPrintf("refreshName result : %s - deleted from the table\n", qPrintable(nameObj.name));
updateEntry(nameObj.name, nameObj.value, nameObj.nHeight, CT_DELETED);
}
}
else
{
// Not in model - add or do nothing
if (nameObj.nHeight != NameTableEntry::NAME_NON_EXISTING)
{
LogPrintf("refreshName result : %s - added to the table\n", qPrintable(nameObj.name));
updateEntry(nameObj.name, nameObj.value, nameObj.nHeight, CT_NEW);
}
else
{
LogPrintf("refreshName result : %s - ignored (not in the table)\n", qPrintable(nameObj.name));
}
}
}
void
CNameMemPool::removeUnexpireConflicts (const std::set<valtype>& unexpired,
std::list<CTransaction>& removed)
{
AssertLockHeld (pool.cs);
BOOST_FOREACH (const valtype& name, unexpired)
{
LogPrint ("names", "unexpired: %s, mempool: %u\n",
ValtypeToString (name).c_str (), mapNameRegs.count (name));
const NameTxMap::const_iterator mit = mapNameRegs.find (name);
if (mit != mapNameRegs.end ())
{
const CTxMemPool::txiter mit2 = pool.mapTx.find (mit->second);
assert (mit2 != pool.mapTx.end ());
pool.removeRecursive (mit2->GetTx (), removed);
}
}
UniValue
name_pending (const UniValue& params, bool fHelp)
{
if (fHelp || params.size () > 1)
throw std::runtime_error (
"name_pending (\"name\")\n"
"\nList unconfirmed name operations in the mempool.\n"
"\nIf a name is given, only check for operations on this name.\n"
"\nArguments:\n"
"1. \"name\" (string, optional) only look for this name\n"
"\nResult:\n"
"[\n"
" {\n"
" \"op\": xxxx (string) the operation being performed\n"
" \"name\": xxxx (string) the name operated on\n"
" \"value\": xxxx (string) the name's new value\n"
" \"txid\": xxxx (string) the txid corresponding to the operation\n"
" \"ismine\": xxxx (boolean) whether the name is owned by the wallet\n"
" },\n"
" ...\n"
"]\n"
+ HelpExampleCli ("name_pending", "")
+ HelpExampleCli ("name_pending", "\"d/domob\"")
+ HelpExampleRpc ("name_pending", "")
);
#ifdef ENABLE_WALLET
LOCK2 (pwalletMain ? &pwalletMain->cs_wallet : NULL, mempool.cs);
#else
LOCK (mempool.cs);
#endif
std::vector<uint256> txHashes;
if (params.size () == 0)
mempool.queryHashes (txHashes);
else
{
const std::string name = params[0].get_str ();
const valtype vchName = ValtypeFromString (name);
const uint256 txid = mempool.getTxForName (vchName);
if (!txid.IsNull ())
txHashes.push_back (txid);
}
UniValue arr(UniValue::VARR);
for (std::vector<uint256>::const_iterator i = txHashes.begin ();
i != txHashes.end (); ++i)
{
std::shared_ptr<const CTransaction> tx = mempool.get (*i);
if (!tx || !tx->IsNamecoin ())
continue;
for (const auto& txOut : tx->vout)
{
const CNameScript op(txOut.scriptPubKey);
if (!op.isNameOp () || !op.isAnyUpdate ())
continue;
const valtype vchName = op.getOpName ();
const valtype vchValue = op.getOpValue ();
const std::string name = ValtypeToString (vchName);
const std::string value = ValtypeToString (vchValue);
std::string strOp;
switch (op.getNameOp ())
{
case OP_NAME_FIRSTUPDATE:
strOp = "name_firstupdate";
break;
case OP_NAME_UPDATE:
strOp = "name_update";
break;
default:
assert (false);
}
UniValue obj(UniValue::VOBJ);
obj.push_back (Pair ("op", strOp));
obj.push_back (Pair ("name", name));
obj.push_back (Pair ("value", value));
obj.push_back (Pair ("txid", tx->GetHash ().GetHex ()));
#ifdef ENABLE_WALLET
isminetype mine = ISMINE_NO;
if (pwalletMain)
mine = IsMine (*pwalletMain, op.getAddress ());
const bool isMine = (mine & ISMINE_SPENDABLE);
obj.push_back (Pair ("ismine", isMine));
#endif
arr.push_back (obj);
}
}
return arr;
}
UniValue
name_filter (const UniValue& params, bool fHelp)
{
if (fHelp || params.size () > 5)
throw std::runtime_error (
"name_filter (\"regexp\" (\"maxage\" (\"from\" (\"nb\" (\"stat\")))))\n"
"\nScan and list names matching a regular expression.\n"
"\nArguments:\n"
"1. \"regexp\" (string, optional) filter names with this regexp\n"
"2. \"maxage\" (numeric, optional, default=36000) only consider names updated in the last \"maxage\" blocks; 0 means all names\n"
"3. \"from\" (numeric, optional, default=0) return from this position onward; index starts at 0\n"
"4. \"nb\" (numeric, optional, default=0) return only \"nb\" entries; 0 means all\n"
"5. \"stat\" (string, optional) if set to the string \"stat\", print statistics instead of returning the names\n"
"\nResult:\n"
"[\n"
+ getNameInfoHelp (" ", ",") +
" ...\n"
"]\n"
"\nExamples:\n"
+ HelpExampleCli ("name_filter", "\"\" 5")
+ HelpExampleCli ("name_filter", "\"^id/\"")
+ HelpExampleCli ("name_filter", "\"^id/\" 36000 0 0 \"stat\"")
+ HelpExampleRpc ("name_scan", "\"^d/\"")
);
if (IsInitialBlockDownload ())
throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD,
"Namecoin is downloading blocks...");
/* ********************** */
/* Interpret parameters. */
bool haveRegexp(false);
boost::xpressive::sregex regexp;
int maxage(36000), from(0), nb(0);
bool stats(false);
if (params.size () >= 1)
{
haveRegexp = true;
regexp = boost::xpressive::sregex::compile (params[0].get_str ());
}
if (params.size () >= 2)
maxage = params[1].get_int ();
if (maxage < 0)
throw JSONRPCError (RPC_INVALID_PARAMETER,
"'maxage' should be non-negative");
if (params.size () >= 3)
from = params[2].get_int ();
if (from < 0)
throw JSONRPCError (RPC_INVALID_PARAMETER, "'from' should be non-negative");
if (params.size () >= 4)
nb = params[3].get_int ();
if (nb < 0)
throw JSONRPCError (RPC_INVALID_PARAMETER, "'nb' should be non-negative");
if (params.size () >= 5)
{
if (params[4].get_str () != "stat")
throw JSONRPCError (RPC_INVALID_PARAMETER,
"fifth argument must be the literal string 'stat'");
stats = true;
}
/* ******************************************* */
/* Iterate over names to build up the result. */
UniValue names(UniValue::VARR);
unsigned count(0);
LOCK (cs_main);
valtype name;
CNameData data;
std::unique_ptr<CNameIterator> iter(pcoinsTip->IterateNames ());
while (iter->next (name, data))
{
const int age = chainActive.Height () - data.getHeight ();
assert (age >= 0);
if (maxage != 0 && age >= maxage)
continue;
if (haveRegexp)
{
const std::string nameStr = ValtypeToString (name);
boost::xpressive::smatch matches;
if (!boost::xpressive::regex_search (nameStr, matches, regexp))
continue;
}
if (from > 0)
{
--from;
continue;
}
assert (from == 0);
if (stats)
++count;
else
names.push_back (getNameInfo (name, data));
if (nb > 0)
{
--nb;
if (nb == 0)
break;
}
}
/* ********************************************************** */
/* Return the correct result (take stats mode into account). */
if (stats)
{
UniValue res(UniValue::VOBJ);
res.push_back (Pair ("blocks", chainActive.Height ()));
res.push_back (Pair ("count", static_cast<int> (count)));
return res;
}
return names;
}
