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-rw-r--r--src/rpc/misc.cpp252
1 files changed, 190 insertions, 62 deletions
diff --git a/src/rpc/misc.cpp b/src/rpc/misc.cpp
index c84eab7d23..7b8aa572d7 100644
--- a/src/rpc/misc.cpp
+++ b/src/rpc/misc.cpp
@@ -7,25 +7,29 @@
#include "clientversion.h"
#include "init.h"
#include "validation.h"
+#include "httpserver.h"
#include "net.h"
#include "netbase.h"
+#include "rpc/blockchain.h"
#include "rpc/server.h"
#include "timedata.h"
#include "util.h"
#include "utilstrencodings.h"
#ifdef ENABLE_WALLET
+#include "wallet/rpcwallet.h"
#include "wallet/wallet.h"
#include "wallet/walletdb.h"
#endif
#include <stdint.h>
+#ifdef HAVE_MALLOC_INFO
+#include <malloc.h>
+#endif
#include <boost/assign/list_of.hpp>
#include <univalue.h>
-using namespace std;
-
/**
* @note Do not add or change anything in the information returned by this
* method. `getinfo` exists for backwards-compatibility only. It combines
@@ -42,7 +46,7 @@ using namespace std;
UniValue getinfo(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 0)
- throw runtime_error(
+ throw std::runtime_error(
"getinfo\n"
"\nDEPRECATED. Returns an object containing various state info.\n"
"\nResult:\n"
@@ -61,7 +65,7 @@ UniValue getinfo(const JSONRPCRequest& request)
" \"keypoolsize\": xxxx, (numeric) how many new keys are pre-generated\n"
" \"unlocked_until\": ttt, (numeric) the timestamp in seconds since epoch (midnight Jan 1 1970 GMT) that the wallet is unlocked for transfers, or 0 if the wallet is locked\n"
" \"paytxfee\": x.xxxx, (numeric) the transaction fee set in " + CURRENCY_UNIT + "/kB\n"
- " \"relayfee\": x.xxxx, (numeric) minimum relay fee for non-free transactions in " + CURRENCY_UNIT + "/kB\n"
+ " \"relayfee\": x.xxxx, (numeric) minimum relay fee for transactions in " + CURRENCY_UNIT + "/kB\n"
" \"errors\": \"...\" (string) any error messages\n"
"}\n"
"\nExamples:\n"
@@ -70,7 +74,9 @@ UniValue getinfo(const JSONRPCRequest& request)
);
#ifdef ENABLE_WALLET
- LOCK2(cs_main, pwalletMain ? &pwalletMain->cs_wallet : NULL);
+ CWallet * const pwallet = GetWalletForJSONRPCRequest(request);
+
+ LOCK2(cs_main, pwallet ? &pwallet->cs_wallet : NULL);
#else
LOCK(cs_main);
#endif
@@ -82,25 +88,26 @@ UniValue getinfo(const JSONRPCRequest& request)
obj.push_back(Pair("version", CLIENT_VERSION));
obj.push_back(Pair("protocolversion", PROTOCOL_VERSION));
#ifdef ENABLE_WALLET
- if (pwalletMain) {
- obj.push_back(Pair("walletversion", pwalletMain->GetVersion()));
- obj.push_back(Pair("balance", ValueFromAmount(pwalletMain->GetBalance())));
+ if (pwallet) {
+ obj.push_back(Pair("walletversion", pwallet->GetVersion()));
+ obj.push_back(Pair("balance", ValueFromAmount(pwallet->GetBalance())));
}
#endif
obj.push_back(Pair("blocks", (int)chainActive.Height()));
obj.push_back(Pair("timeoffset", GetTimeOffset()));
if(g_connman)
obj.push_back(Pair("connections", (int)g_connman->GetNodeCount(CConnman::CONNECTIONS_ALL)));
- obj.push_back(Pair("proxy", (proxy.IsValid() ? proxy.proxy.ToStringIPPort() : string())));
+ obj.push_back(Pair("proxy", (proxy.IsValid() ? proxy.proxy.ToStringIPPort() : std::string())));
obj.push_back(Pair("difficulty", (double)GetDifficulty()));
obj.push_back(Pair("testnet", Params().NetworkIDString() == CBaseChainParams::TESTNET));
#ifdef ENABLE_WALLET
- if (pwalletMain) {
- obj.push_back(Pair("keypoololdest", pwalletMain->GetOldestKeyPoolTime()));
- obj.push_back(Pair("keypoolsize", (int)pwalletMain->GetKeyPoolSize()));
+ if (pwallet) {
+ obj.push_back(Pair("keypoololdest", pwallet->GetOldestKeyPoolTime()));
+ obj.push_back(Pair("keypoolsize", (int)pwallet->GetKeyPoolSize()));
+ }
+ if (pwallet && pwallet->IsCrypted()) {
+ obj.push_back(Pair("unlocked_until", pwallet->nRelockTime));
}
- if (pwalletMain && pwalletMain->IsCrypted())
- obj.push_back(Pair("unlocked_until", nWalletUnlockTime));
obj.push_back(Pair("paytxfee", ValueFromAmount(payTxFee.GetFeePerK())));
#endif
obj.push_back(Pair("relayfee", ValueFromAmount(::minRelayTxFee.GetFeePerK())));
@@ -112,13 +119,17 @@ UniValue getinfo(const JSONRPCRequest& request)
class DescribeAddressVisitor : public boost::static_visitor<UniValue>
{
public:
+ CWallet * const pwallet;
+
+ DescribeAddressVisitor(CWallet *_pwallet) : pwallet(_pwallet) {}
+
UniValue operator()(const CNoDestination &dest) const { return UniValue(UniValue::VOBJ); }
UniValue operator()(const CKeyID &keyID) const {
UniValue obj(UniValue::VOBJ);
CPubKey vchPubKey;
obj.push_back(Pair("isscript", false));
- if (pwalletMain && pwalletMain->GetPubKey(keyID, vchPubKey)) {
+ if (pwallet && pwallet->GetPubKey(keyID, vchPubKey)) {
obj.push_back(Pair("pubkey", HexStr(vchPubKey)));
obj.push_back(Pair("iscompressed", vchPubKey.IsCompressed()));
}
@@ -129,7 +140,7 @@ public:
UniValue obj(UniValue::VOBJ);
CScript subscript;
obj.push_back(Pair("isscript", true));
- if (pwalletMain && pwalletMain->GetCScript(scriptID, subscript)) {
+ if (pwallet && pwallet->GetCScript(scriptID, subscript)) {
std::vector<CTxDestination> addresses;
txnouttype whichType;
int nRequired;
@@ -151,7 +162,7 @@ public:
UniValue validateaddress(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 1)
- throw runtime_error(
+ throw std::runtime_error(
"validateaddress \"address\"\n"
"\nReturn information about the given bitcoin address.\n"
"\nArguments:\n"
@@ -177,7 +188,9 @@ UniValue validateaddress(const JSONRPCRequest& request)
);
#ifdef ENABLE_WALLET
- LOCK2(cs_main, pwalletMain ? &pwalletMain->cs_wallet : NULL);
+ CWallet * const pwallet = GetWalletForJSONRPCRequest(request);
+
+ LOCK2(cs_main, pwallet ? &pwallet->cs_wallet : NULL);
#else
LOCK(cs_main);
#endif
@@ -190,23 +203,24 @@ UniValue validateaddress(const JSONRPCRequest& request)
if (isValid)
{
CTxDestination dest = address.Get();
- string currentAddress = address.ToString();
+ std::string currentAddress = address.ToString();
ret.push_back(Pair("address", currentAddress));
CScript scriptPubKey = GetScriptForDestination(dest);
ret.push_back(Pair("scriptPubKey", HexStr(scriptPubKey.begin(), scriptPubKey.end())));
#ifdef ENABLE_WALLET
- isminetype mine = pwalletMain ? IsMine(*pwalletMain, dest) : ISMINE_NO;
+ isminetype mine = pwallet ? IsMine(*pwallet, dest) : ISMINE_NO;
ret.push_back(Pair("ismine", (mine & ISMINE_SPENDABLE) ? true : false));
ret.push_back(Pair("iswatchonly", (mine & ISMINE_WATCH_ONLY) ? true: false));
- UniValue detail = boost::apply_visitor(DescribeAddressVisitor(), dest);
+ UniValue detail = boost::apply_visitor(DescribeAddressVisitor(pwallet), dest);
ret.pushKVs(detail);
- if (pwalletMain && pwalletMain->mapAddressBook.count(dest))
- ret.push_back(Pair("account", pwalletMain->mapAddressBook[dest].name));
+ if (pwallet && pwallet->mapAddressBook.count(dest)) {
+ ret.push_back(Pair("account", pwallet->mapAddressBook[dest].name));
+ }
CKeyID keyID;
- if (pwalletMain) {
- const auto& meta = pwalletMain->mapKeyMetadata;
+ if (pwallet) {
+ const auto& meta = pwallet->mapKeyMetadata;
auto it = address.GetKeyID(keyID) ? meta.find(keyID) : meta.end();
if (it == meta.end()) {
it = meta.find(CScriptID(scriptPubKey));
@@ -224,23 +238,26 @@ UniValue validateaddress(const JSONRPCRequest& request)
return ret;
}
+// Needed even with !ENABLE_WALLET, to pass (ignored) pointers around
+class CWallet;
+
/**
* Used by addmultisigaddress / createmultisig:
*/
-CScript _createmultisig_redeemScript(const UniValue& params)
+CScript _createmultisig_redeemScript(CWallet * const pwallet, const UniValue& params)
{
int nRequired = params[0].get_int();
const UniValue& keys = params[1].get_array();
// Gather public keys
if (nRequired < 1)
- throw runtime_error("a multisignature address must require at least one key to redeem");
+ throw std::runtime_error("a multisignature address must require at least one key to redeem");
if ((int)keys.size() < nRequired)
- throw runtime_error(
+ throw std::runtime_error(
strprintf("not enough keys supplied "
"(got %u keys, but need at least %d to redeem)", keys.size(), nRequired));
if (keys.size() > 16)
- throw runtime_error("Number of addresses involved in the multisignature address creation > 16\nReduce the number");
+ throw std::runtime_error("Number of addresses involved in the multisignature address creation > 16\nReduce the number");
std::vector<CPubKey> pubkeys;
pubkeys.resize(keys.size());
for (unsigned int i = 0; i < keys.size(); i++)
@@ -249,18 +266,18 @@ CScript _createmultisig_redeemScript(const UniValue& params)
#ifdef ENABLE_WALLET
// Case 1: Bitcoin address and we have full public key:
CBitcoinAddress address(ks);
- if (pwalletMain && address.IsValid())
- {
+ if (pwallet && address.IsValid()) {
CKeyID keyID;
if (!address.GetKeyID(keyID))
- throw runtime_error(
+ throw std::runtime_error(
strprintf("%s does not refer to a key",ks));
CPubKey vchPubKey;
- if (!pwalletMain->GetPubKey(keyID, vchPubKey))
- throw runtime_error(
+ if (!pwallet->GetPubKey(keyID, vchPubKey)) {
+ throw std::runtime_error(
strprintf("no full public key for address %s",ks));
+ }
if (!vchPubKey.IsFullyValid())
- throw runtime_error(" Invalid public key: "+ks);
+ throw std::runtime_error(" Invalid public key: "+ks);
pubkeys[i] = vchPubKey;
}
@@ -271,18 +288,18 @@ CScript _createmultisig_redeemScript(const UniValue& params)
{
CPubKey vchPubKey(ParseHex(ks));
if (!vchPubKey.IsFullyValid())
- throw runtime_error(" Invalid public key: "+ks);
+ throw std::runtime_error(" Invalid public key: "+ks);
pubkeys[i] = vchPubKey;
}
else
{
- throw runtime_error(" Invalid public key: "+ks);
+ throw std::runtime_error(" Invalid public key: "+ks);
}
}
CScript result = GetScriptForMultisig(nRequired, pubkeys);
if (result.size() > MAX_SCRIPT_ELEMENT_SIZE)
- throw runtime_error(
+ throw std::runtime_error(
strprintf("redeemScript exceeds size limit: %d > %d", result.size(), MAX_SCRIPT_ELEMENT_SIZE));
return result;
@@ -290,9 +307,15 @@ CScript _createmultisig_redeemScript(const UniValue& params)
UniValue createmultisig(const JSONRPCRequest& request)
{
+#ifdef ENABLE_WALLET
+ CWallet * const pwallet = GetWalletForJSONRPCRequest(request);
+#else
+ CWallet * const pwallet = NULL;
+#endif
+
if (request.fHelp || request.params.size() < 2 || request.params.size() > 2)
{
- string msg = "createmultisig nrequired [\"key\",...]\n"
+ std::string msg = "createmultisig nrequired [\"key\",...]\n"
"\nCreates a multi-signature address with n signature of m keys required.\n"
"It returns a json object with the address and redeemScript.\n"
@@ -316,11 +339,11 @@ UniValue createmultisig(const JSONRPCRequest& request)
"\nAs a json rpc call\n"
+ HelpExampleRpc("createmultisig", "2, \"[\\\"16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5\\\",\\\"171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV\\\"]\"")
;
- throw runtime_error(msg);
+ throw std::runtime_error(msg);
}
// Construct using pay-to-script-hash:
- CScript inner = _createmultisig_redeemScript(request.params);
+ CScript inner = _createmultisig_redeemScript(pwallet, request.params);
CScriptID innerID(inner);
CBitcoinAddress address(innerID);
@@ -334,7 +357,7 @@ UniValue createmultisig(const JSONRPCRequest& request)
UniValue verifymessage(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 3)
- throw runtime_error(
+ throw std::runtime_error(
"verifymessage \"address\" \"signature\" \"message\"\n"
"\nVerify a signed message\n"
"\nArguments:\n"
@@ -356,9 +379,9 @@ UniValue verifymessage(const JSONRPCRequest& request)
LOCK(cs_main);
- string strAddress = request.params[0].get_str();
- string strSign = request.params[1].get_str();
- string strMessage = request.params[2].get_str();
+ std::string strAddress = request.params[0].get_str();
+ std::string strSign = request.params[1].get_str();
+ std::string strMessage = request.params[2].get_str();
CBitcoinAddress addr(strAddress);
if (!addr.IsValid())
@@ -369,7 +392,7 @@ UniValue verifymessage(const JSONRPCRequest& request)
throw JSONRPCError(RPC_TYPE_ERROR, "Address does not refer to key");
bool fInvalid = false;
- vector<unsigned char> vchSig = DecodeBase64(strSign.c_str(), &fInvalid);
+ std::vector<unsigned char> vchSig = DecodeBase64(strSign.c_str(), &fInvalid);
if (fInvalid)
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Malformed base64 encoding");
@@ -388,7 +411,7 @@ UniValue verifymessage(const JSONRPCRequest& request)
UniValue signmessagewithprivkey(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 2)
- throw runtime_error(
+ throw std::runtime_error(
"signmessagewithprivkey \"privkey\" \"message\"\n"
"\nSign a message with the private key of an address\n"
"\nArguments:\n"
@@ -405,8 +428,8 @@ UniValue signmessagewithprivkey(const JSONRPCRequest& request)
+ HelpExampleRpc("signmessagewithprivkey", "\"privkey\", \"my message\"")
);
- string strPrivkey = request.params[0].get_str();
- string strMessage = request.params[1].get_str();
+ std::string strPrivkey = request.params[0].get_str();
+ std::string strMessage = request.params[1].get_str();
CBitcoinSecret vchSecret;
bool fGood = vchSecret.SetString(strPrivkey);
@@ -420,7 +443,7 @@ UniValue signmessagewithprivkey(const JSONRPCRequest& request)
ss << strMessageMagic;
ss << strMessage;
- vector<unsigned char> vchSig;
+ std::vector<unsigned char> vchSig;
if (!key.SignCompact(ss.GetHash(), vchSig))
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Sign failed");
@@ -430,7 +453,7 @@ UniValue signmessagewithprivkey(const JSONRPCRequest& request)
UniValue setmocktime(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 1)
- throw runtime_error(
+ throw std::runtime_error(
"setmocktime timestamp\n"
"\nSet the local time to given timestamp (-regtest only)\n"
"\nArguments:\n"
@@ -439,7 +462,7 @@ UniValue setmocktime(const JSONRPCRequest& request)
);
if (!Params().MineBlocksOnDemand())
- throw runtime_error("setmocktime for regression testing (-regtest mode) only");
+ throw std::runtime_error("setmocktime for regression testing (-regtest mode) only");
// For now, don't change mocktime if we're in the middle of validation, as
// this could have an effect on mempool time-based eviction, as well as
@@ -467,16 +490,39 @@ static UniValue RPCLockedMemoryInfo()
return obj;
}
+#ifdef HAVE_MALLOC_INFO
+static std::string RPCMallocInfo()
+{
+ char *ptr = nullptr;
+ size_t size = 0;
+ FILE *f = open_memstream(&ptr, &size);
+ if (f) {
+ malloc_info(0, f);
+ fclose(f);
+ if (ptr) {
+ std::string rv(ptr, size);
+ free(ptr);
+ return rv;
+ }
+ }
+ return "";
+}
+#endif
+
UniValue getmemoryinfo(const JSONRPCRequest& request)
{
/* Please, avoid using the word "pool" here in the RPC interface or help,
* as users will undoubtedly confuse it with the other "memory pool"
*/
- if (request.fHelp || request.params.size() != 0)
- throw runtime_error(
- "getmemoryinfo\n"
+ if (request.fHelp || request.params.size() > 1)
+ throw std::runtime_error(
+ "getmemoryinfo (\"mode\")\n"
"Returns an object containing information about memory usage.\n"
- "\nResult:\n"
+ "Arguments:\n"
+ "1. \"mode\" determines what kind of information is returned. This argument is optional, the default mode is \"stats\".\n"
+ " - \"stats\" returns general statistics about memory usage in the daemon.\n"
+ " - \"mallocinfo\" returns an XML string describing low-level heap state (only available if compiled with glibc 2.10+).\n"
+ "\nResult (mode \"stats\"):\n"
"{\n"
" \"locked\": { (json object) Information about locked memory manager\n"
" \"used\": xxxxx, (numeric) Number of bytes used\n"
@@ -487,19 +533,100 @@ UniValue getmemoryinfo(const JSONRPCRequest& request)
" \"chunks_free\": xxxxx, (numeric) Number unused chunks\n"
" }\n"
"}\n"
+ "\nResult (mode \"mallocinfo\"):\n"
+ "\"<malloc version=\"1\">...\"\n"
"\nExamples:\n"
+ HelpExampleCli("getmemoryinfo", "")
+ HelpExampleRpc("getmemoryinfo", "")
);
- UniValue obj(UniValue::VOBJ);
- obj.push_back(Pair("locked", RPCLockedMemoryInfo()));
- return obj;
+
+ std::string mode = (request.params.size() < 1 || request.params[0].isNull()) ? "stats" : request.params[0].get_str();
+ if (mode == "stats") {
+ UniValue obj(UniValue::VOBJ);
+ obj.push_back(Pair("locked", RPCLockedMemoryInfo()));
+ return obj;
+ } else if (mode == "mallocinfo") {
+#ifdef HAVE_MALLOC_INFO
+ return RPCMallocInfo();
+#else
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "mallocinfo is only available when compiled with glibc 2.10+");
+#endif
+ } else {
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "unknown mode " + mode);
+ }
+}
+
+uint32_t getCategoryMask(UniValue cats) {
+ cats = cats.get_array();
+ uint32_t mask = 0;
+ for (unsigned int i = 0; i < cats.size(); ++i) {
+ uint32_t flag = 0;
+ std::string cat = cats[i].get_str();
+ if (!GetLogCategory(&flag, &cat)) {
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "unknown logging category " + cat);
+ }
+ mask |= flag;
+ }
+ return mask;
+}
+
+UniValue logging(const JSONRPCRequest& request)
+{
+ if (request.fHelp || request.params.size() > 2) {
+ throw std::runtime_error(
+ "logging [include,...] <exclude>\n"
+ "Gets and sets the logging configuration.\n"
+ "When called without an argument, returns the list of categories that are currently being debug logged.\n"
+ "When called with arguments, adds or removes categories from debug logging.\n"
+ "The valid logging categories are: " + ListLogCategories() + "\n"
+ "libevent logging is configured on startup and cannot be modified by this RPC during runtime."
+ "Arguments:\n"
+ "1. \"include\" (array of strings) add debug logging for these categories.\n"
+ "2. \"exclude\" (array of strings) remove debug logging for these categories.\n"
+ "\nResult: <categories> (string): a list of the logging categories that are active.\n"
+ "\nExamples:\n"
+ + HelpExampleCli("logging", "\"[\\\"all\\\"]\" \"[\\\"http\\\"]\"")
+ + HelpExampleRpc("logging", "[\"all\"], \"[libevent]\"")
+ );
+ }
+
+ uint32_t originalLogCategories = logCategories;
+ if (request.params.size() > 0 && request.params[0].isArray()) {
+ logCategories |= getCategoryMask(request.params[0]);
+ }
+
+ if (request.params.size() > 1 && request.params[1].isArray()) {
+ logCategories &= ~getCategoryMask(request.params[1]);
+ }
+
+ // Update libevent logging if BCLog::LIBEVENT has changed.
+ // If the library version doesn't allow it, UpdateHTTPServerLogging() returns false,
+ // in which case we should clear the BCLog::LIBEVENT flag.
+ // Throw an error if the user has explicitly asked to change only the libevent
+ // flag and it failed.
+ uint32_t changedLogCategories = originalLogCategories ^ logCategories;
+ if (changedLogCategories & BCLog::LIBEVENT) {
+ if (!UpdateHTTPServerLogging(logCategories & BCLog::LIBEVENT)) {
+ logCategories &= ~BCLog::LIBEVENT;
+ if (changedLogCategories == BCLog::LIBEVENT) {
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "libevent logging cannot be updated when using libevent before v2.1.1.");
+ }
+ }
+ }
+
+ UniValue result(UniValue::VOBJ);
+ std::vector<CLogCategoryActive> vLogCatActive = ListActiveLogCategories();
+ for (const auto& logCatActive : vLogCatActive) {
+ result.pushKV(logCatActive.category, logCatActive.active);
+ }
+
+ return result;
}
UniValue echo(const JSONRPCRequest& request)
{
if (request.fHelp)
- throw runtime_error(
+ throw std::runtime_error(
"echo|echojson \"message\" ...\n"
"\nSimply echo back the input arguments. This command is for testing.\n"
"\nThe difference between echo and echojson is that echojson has argument conversion enabled in the client-side table in"
@@ -513,7 +640,7 @@ static const CRPCCommand commands[] =
{ // category name actor (function) okSafeMode
// --------------------- ------------------------ ----------------------- ----------
{ "control", "getinfo", &getinfo, true, {} }, /* uses wallet if enabled */
- { "control", "getmemoryinfo", &getmemoryinfo, true, {} },
+ { "control", "getmemoryinfo", &getmemoryinfo, true, {"mode"} },
{ "util", "validateaddress", &validateaddress, true, {"address"} }, /* uses wallet if enabled */
{ "util", "createmultisig", &createmultisig, true, {"nrequired","keys"} },
{ "util", "verifymessage", &verifymessage, true, {"address","signature","message"} },
@@ -522,7 +649,8 @@ static const CRPCCommand commands[] =
/* Not shown in help */
{ "hidden", "setmocktime", &setmocktime, true, {"timestamp"}},
{ "hidden", "echo", &echo, true, {"arg0","arg1","arg2","arg3","arg4","arg5","arg6","arg7","arg8","arg9"}},
- { "hidden", "echojson", &echo, true, {"arg0","arg1","arg2","arg3","arg4","arg5","arg6","arg7","arg8","arg9"}},
+ { "hidden", "echojson", &echo, true, {"arg0","arg1","arg2","arg3","arg4","arg5","arg6","arg7","arg8","arg9"}},
+ { "hidden", "logging", &logging, true, {"include", "exclude"}},
};
void RegisterMiscRPCCommands(CRPCTable &t)