// Copyright (c) 2010 Satoshi Nakamoto // Copyright (c) 2009-2015 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "rpcserver.h" #include "base58.h" #include "init.h" #include "random.h" #include "sync.h" #include "ui_interface.h" #include "util.h" #include "utilstrencodings.h" #include #include #include #include #include #include #include #include #include #include // for to_upper() using namespace RPCServer; using namespace std; static bool fRPCRunning = false; static bool fRPCInWarmup = true; static std::string rpcWarmupStatus("RPC server started"); static CCriticalSection cs_rpcWarmup; /* Timer-creating functions */ static std::vector timerInterfaces; /* Map of name to timer. * @note Can be changed to std::unique_ptr when C++11 */ static std::map > deadlineTimers; static struct CRPCSignals { boost::signals2::signal Started; boost::signals2::signal Stopped; boost::signals2::signal PreCommand; boost::signals2::signal PostCommand; } g_rpcSignals; void RPCServer::OnStarted(boost::function slot) { g_rpcSignals.Started.connect(slot); } void RPCServer::OnStopped(boost::function slot) { g_rpcSignals.Stopped.connect(slot); } void RPCServer::OnPreCommand(boost::function slot) { g_rpcSignals.PreCommand.connect(boost::bind(slot, _1)); } void RPCServer::OnPostCommand(boost::function slot) { g_rpcSignals.PostCommand.connect(boost::bind(slot, _1)); } void RPCTypeCheck(const UniValue& params, const list& typesExpected, bool fAllowNull) { unsigned int i = 0; BOOST_FOREACH(UniValue::VType t, typesExpected) { if (params.size() <= i) break; const UniValue& v = params[i]; if (!((v.type() == t) || (fAllowNull && (v.isNull())))) { string err = strprintf("Expected type %s, got %s", uvTypeName(t), uvTypeName(v.type())); throw JSONRPCError(RPC_TYPE_ERROR, err); } i++; } } void RPCTypeCheckObj(const UniValue& o, const map& typesExpected, bool fAllowNull) { BOOST_FOREACH(const PAIRTYPE(string, UniValue::VType)& t, typesExpected) { const UniValue& v = find_value(o, t.first); if (!fAllowNull && v.isNull()) throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Missing %s", t.first)); if (!((v.type() == t.second) || (fAllowNull && (v.isNull())))) { string err = strprintf("Expected type %s for %s, got %s", uvTypeName(t.second), t.first, uvTypeName(v.type())); throw JSONRPCError(RPC_TYPE_ERROR, err); } } } CAmount AmountFromValue(const UniValue& value) { if (!value.isNum() && !value.isStr()) throw JSONRPCError(RPC_TYPE_ERROR, "Amount is not a number or string"); CAmount amount; if (!ParseFixedPoint(value.getValStr(), 8, &amount)) throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount"); if (!MoneyRange(amount)) throw JSONRPCError(RPC_TYPE_ERROR, "Amount out of range"); return amount; } UniValue ValueFromAmount(const CAmount& amount) { bool sign = amount < 0; int64_t n_abs = (sign ? -amount : amount); int64_t quotient = n_abs / COIN; int64_t remainder = n_abs % COIN; return UniValue(UniValue::VNUM, strprintf("%s%d.%08d", sign ? "-" : "", quotient, remainder)); } uint256 ParseHashV(const UniValue& v, string strName) { string strHex; if (v.isStr()) strHex = v.get_str(); if (!IsHex(strHex)) // Note: IsHex("") is false throw JSONRPCError(RPC_INVALID_PARAMETER, strName+" must be hexadecimal string (not '"+strHex+"')"); uint256 result; result.SetHex(strHex); return result; } uint256 ParseHashO(const UniValue& o, string strKey) { return ParseHashV(find_value(o, strKey), strKey); } vector ParseHexV(const UniValue& v, string strName) { string strHex; if (v.isStr()) strHex = v.get_str(); if (!IsHex(strHex)) throw JSONRPCError(RPC_INVALID_PARAMETER, strName+" must be hexadecimal string (not '"+strHex+"')"); return ParseHex(strHex); } vector ParseHexO(const UniValue& o, string strKey) { return ParseHexV(find_value(o, strKey), strKey); } /** * Note: This interface may still be subject to change. */ std::string CRPCTable::help(const std::string& strCommand) const { string strRet; string category; set setDone; vector > vCommands; for (map::const_iterator mi = mapCommands.begin(); mi != mapCommands.end(); ++mi) vCommands.push_back(make_pair(mi->second->category + mi->first, mi->second)); sort(vCommands.begin(), vCommands.end()); BOOST_FOREACH(const PAIRTYPE(string, const CRPCCommand*)& command, vCommands) { const CRPCCommand *pcmd = command.second; string strMethod = pcmd->name; // We already filter duplicates, but these deprecated screw up the sort order if (strMethod.find("label") != string::npos) continue; if ((strCommand != "" || pcmd->category == "hidden") && strMethod != strCommand) continue; try { UniValue params; rpcfn_type pfn = pcmd->actor; if (setDone.insert(pfn).second) (*pfn)(params, true); } catch (const std::exception& e) { // Help text is returned in an exception string strHelp = string(e.what()); if (strCommand == "") { if (strHelp.find('\n') != string::npos) strHelp = strHelp.substr(0, strHelp.find('\n')); if (category != pcmd->category) { if (!category.empty()) strRet += "\n"; category = pcmd->category; string firstLetter = category.substr(0,1); boost::to_upper(firstLetter); strRet += "== " + firstLetter + category.substr(1) + " ==\n"; } } strRet += strHelp + "\n"; } } if (strRet == "") strRet = strprintf("help: unknown command: %s\n", strCommand); strRet = strRet.substr(0,strRet.size()-1); return strRet; } UniValue help(const UniValue& params, bool fHelp) { if (fHelp || params.size() > 1) throw runtime_error( "help ( \"command\" )\n" "\nList all commands, or get help for a specified command.\n" "\nArguments:\n" "1. \"command\" (string, optional) The command to get help on\n" "\nResult:\n" "\"text\" (string) The help text\n" ); string strCommand; if (params.size() > 0) strCommand = params[0].get_str(); return tableRPC.help(strCommand); } UniValue stop(const UniValue& params, bool fHelp) { // Accept the deprecated and ignored 'detach' boolean argument if (fHelp || params.size() > 1) throw runtime_error( "stop\n" "\nStop Bitcoin server."); // Event loop will exit after current HTTP requests have been handled, so // this reply will get back to the client. StartShutdown(); return "Bitcoin server stopping"; } /** * Call Table */ static const CRPCCommand vRPCCommands[] = { // category name actor (function) okSafeMode // --------------------- ------------------------ ----------------------- ---------- /* Overall control/query calls */ { "control", "getinfo", &getinfo, true }, /* uses wallet if enabled */ { "control", "help", &help, true }, { "control", "stop", &stop, true }, /* P2P networking */ { "network", "getnetworkinfo", &getnetworkinfo, true }, { "network", "addnode", &addnode, true }, { "network", "disconnectnode", &disconnectnode, true }, { "network", "getaddednodeinfo", &getaddednodeinfo, true }, { "network", "getconnectioncount", &getconnectioncount, true }, { "network", "getnettotals", &getnettotals, true }, { "network", "getpeerinfo", &getpeerinfo, true }, { "network", "ping", &ping, true }, { "network", "setban", &setban, true }, { "network", "listbanned", &listbanned, true }, { "network", "clearbanned", &clearbanned, true }, /* Block chain and UTXO */ { "blockchain", "getblockchaininfo", &getblockchaininfo, true }, { "blockchain", "getbestblockhash", &getbestblockhash, true }, { "blockchain", "getblockcount", &getblockcount, true }, { "blockchain", "getblock", &getblock, true }, { "blockchain", "getblockhash", &getblockhash, true }, { "blockchain", "getblockheader", &getblockheader, true }, { "blockchain", "getchaintips", &getchaintips, true }, { "blockchain", "getdifficulty", &getdifficulty, true }, { "blockchain", "getmempoolinfo", &getmempoolinfo, true }, { "blockchain", "getrawmempool", &getrawmempool, true }, { "blockchain", "gettxout", &gettxout, true }, { "blockchain", "gettxoutproof", &gettxoutproof, true }, { "blockchain", "verifytxoutproof", &verifytxoutproof, true }, { "blockchain", "gettxoutsetinfo", &gettxoutsetinfo, true }, { "blockchain", "verifychain", &verifychain, true }, /* Mining */ { "mining", "getblocktemplate", &getblocktemplate, true }, { "mining", "getmininginfo", &getmininginfo, true }, { "mining", "getnetworkhashps", &getnetworkhashps, true }, { "mining", "prioritisetransaction", &prioritisetransaction, true }, { "mining", "submitblock", &submitblock, true }, /* Coin generation */ { "generating", "getgenerate", &getgenerate, true }, { "generating", "setgenerate", &setgenerate, true }, { "generating", "generate", &generate, true }, /* Raw transactions */ { "rawtransactions", "createrawtransaction", &createrawtransaction, true }, { "rawtransactions", "decoderawtransaction", &decoderawtransaction, true }, { "rawtransactions", "decodescript", &decodescript, true }, { "rawtransactions", "getrawtransaction", &getrawtransaction, true }, { "rawtransactions", "sendrawtransaction", &sendrawtransaction, false }, { "rawtransactions", "signrawtransaction", &signrawtransaction, false }, /* uses wallet if enabled */ #ifdef ENABLE_WALLET { "rawtransactions", "fundrawtransaction", &fundrawtransaction, false }, #endif /* Utility functions */ { "util", "createmultisig", &createmultisig, true }, { "util", "validateaddress", &validateaddress, true }, /* uses wallet if enabled */ { "util", "verifymessage", &verifymessage, true }, { "util", "estimatefee", &estimatefee, true }, { "util", "estimatepriority", &estimatepriority, true }, { "util", "estimatesmartfee", &estimatesmartfee, true }, { "util", "estimatesmartpriority", &estimatesmartpriority, true }, /* Not shown in help */ { "hidden", "invalidateblock", &invalidateblock, true }, { "hidden", "reconsiderblock", &reconsiderblock, true }, { "hidden", "setmocktime", &setmocktime, true }, #ifdef ENABLE_WALLET { "hidden", "resendwallettransactions", &resendwallettransactions, true}, #endif #ifdef ENABLE_WALLET /* Wallet */ { "wallet", "addmultisigaddress", &addmultisigaddress, true }, { "wallet", "backupwallet", &backupwallet, true }, { "wallet", "dumpprivkey", &dumpprivkey, true }, { "wallet", "dumpwallet", &dumpwallet, true }, { "wallet", "encryptwallet", &encryptwallet, true }, { "wallet", "getaccountaddress", &getaccountaddress, true }, { "wallet", "getaccount", &getaccount, true }, { "wallet", "getaddressesbyaccount", &getaddressesbyaccount, true }, { "wallet", "getbalance", &getbalance, false }, { "wallet", "getnewaddress", &getnewaddress, true }, { "wallet", "getrawchangeaddress", &getrawchangeaddress, true }, { "wallet", "getreceivedbyaccount", &getreceivedbyaccount, false }, { "wallet", "getreceivedbyaddress", &getreceivedbyaddress, false }, { "wallet", "gettransaction", &gettransaction, false }, { "wallet", "getunconfirmedbalance", &getunconfirmedbalance, false }, { "wallet", "getwalletinfo", &getwalletinfo, false }, { "wallet", "importprivkey", &importprivkey, true }, { "wallet", "importwallet", &importwallet, true }, { "wallet", "importaddress", &importaddress, true }, { "wallet", "importpubkey", &importpubkey, true }, { "wallet", "keypoolrefill", &keypoolrefill, true }, { "wallet", "listaccounts", &listaccounts, false }, { "wallet", "listaddressgroupings", &listaddressgroupings, false }, { "wallet", "listlockunspent", &listlockunspent, false }, { "wallet", "listreceivedbyaccount", &listreceivedbyaccount, false }, { "wallet", "listreceivedbyaddress", &listreceivedbyaddress, false }, { "wallet", "listsinceblock", &listsinceblock, false }, { "wallet", "listtransactions", &listtransactions, false }, { "wallet", "listunspent", &listunspent, false }, { "wallet", "lockunspent", &lockunspent, true }, { "wallet", "move", &movecmd, false }, { "wallet", "sendfrom", &sendfrom, false }, { "wallet", "sendmany", &sendmany, false }, { "wallet", "sendtoaddress", &sendtoaddress, false }, { "wallet", "setaccount", &setaccount, true }, { "wallet", "settxfee", &settxfee, true }, { "wallet", "signmessage", &signmessage, true }, { "wallet", "walletlock", &walletlock, true }, { "wallet", "walletpassphrasechange", &walletpassphrasechange, true }, { "wallet", "walletpassphrase", &walletpassphrase, true }, #endif // ENABLE_WALLET }; CRPCTable::CRPCTable() { unsigned int vcidx; for (vcidx = 0; vcidx < (sizeof(vRPCCommands) / sizeof(vRPCCommands[0])); vcidx++) { const CRPCCommand *pcmd; pcmd = &vRPCCommands[vcidx]; mapCommands[pcmd->name] = pcmd; } } const CRPCCommand *CRPCTable::operator[](const std::string &name) const { map::const_iterator it = mapCommands.find(name); if (it == mapCommands.end()) return NULL; return (*it).second; } bool StartRPC() { LogPrint("rpc", "Starting RPC\n"); fRPCRunning = true; g_rpcSignals.Started(); return true; } void InterruptRPC() { LogPrint("rpc", "Interrupting RPC\n"); // Interrupt e.g. running longpolls fRPCRunning = false; } void StopRPC() { LogPrint("rpc", "Stopping RPC\n"); deadlineTimers.clear(); g_rpcSignals.Stopped(); } bool IsRPCRunning() { return fRPCRunning; } void SetRPCWarmupStatus(const std::string& newStatus) { LOCK(cs_rpcWarmup); rpcWarmupStatus = newStatus; } void SetRPCWarmupFinished() { LOCK(cs_rpcWarmup); assert(fRPCInWarmup); fRPCInWarmup = false; } bool RPCIsInWarmup(std::string *outStatus) { LOCK(cs_rpcWarmup); if (outStatus) *outStatus = rpcWarmupStatus; return fRPCInWarmup; } void JSONRequest::parse(const UniValue& valRequest) { // Parse request if (!valRequest.isObject()) throw JSONRPCError(RPC_INVALID_REQUEST, "Invalid Request object"); const UniValue& request = valRequest.get_obj(); // Parse id now so errors from here on will have the id id = find_value(request, "id"); // Parse method UniValue valMethod = find_value(request, "method"); if (valMethod.isNull()) throw JSONRPCError(RPC_INVALID_REQUEST, "Missing method"); if (!valMethod.isStr()) throw JSONRPCError(RPC_INVALID_REQUEST, "Method must be a string"); strMethod = valMethod.get_str(); if (strMethod != "getblocktemplate") LogPrint("rpc", "ThreadRPCServer method=%s\n", SanitizeString(strMethod)); // Parse params UniValue valParams = find_value(request, "params"); if (valParams.isArray()) params = valParams.get_array(); else if (valParams.isNull()) params = UniValue(UniValue::VARR); else throw JSONRPCError(RPC_INVALID_REQUEST, "Params must be an array"); } static UniValue JSONRPCExecOne(const UniValue& req) { UniValue rpc_result(UniValue::VOBJ); JSONRequest jreq; try { jreq.parse(req); UniValue result = tableRPC.execute(jreq.strMethod, jreq.params); rpc_result = JSONRPCReplyObj(result, NullUniValue, jreq.id); } catch (const UniValue& objError) { rpc_result = JSONRPCReplyObj(NullUniValue, objError, jreq.id); } catch (const std::exception& e) { rpc_result = JSONRPCReplyObj(NullUniValue, JSONRPCError(RPC_PARSE_ERROR, e.what()), jreq.id); } return rpc_result; } std::string JSONRPCExecBatch(const UniValue& vReq) { UniValue ret(UniValue::VARR); for (unsigned int reqIdx = 0; reqIdx < vReq.size(); reqIdx++) ret.push_back(JSONRPCExecOne(vReq[reqIdx])); return ret.write() + "\n"; } UniValue CRPCTable::execute(const std::string &strMethod, const UniValue ¶ms) const { // Return immediately if in warmup { LOCK(cs_rpcWarmup); if (fRPCInWarmup) throw JSONRPCError(RPC_IN_WARMUP, rpcWarmupStatus); } // Find method const CRPCCommand *pcmd = tableRPC[strMethod]; if (!pcmd) throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found"); g_rpcSignals.PreCommand(*pcmd); try { // Execute return pcmd->actor(params, false); } catch (const std::exception& e) { throw JSONRPCError(RPC_MISC_ERROR, e.what()); } g_rpcSignals.PostCommand(*pcmd); } std::string HelpExampleCli(const std::string& methodname, const std::string& args) { return "> bitcoin-cli " + methodname + " " + args + "\n"; } std::string HelpExampleRpc(const std::string& methodname, const std::string& args) { return "> curl --user myusername --data-binary '{\"jsonrpc\": \"1.0\", \"id\":\"curltest\", " "\"method\": \"" + methodname + "\", \"params\": [" + args + "] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/\n"; } void RPCRegisterTimerInterface(RPCTimerInterface *iface) { timerInterfaces.push_back(iface); } void RPCUnregisterTimerInterface(RPCTimerInterface *iface) { std::vector::iterator i = std::find(timerInterfaces.begin(), timerInterfaces.end(), iface); assert(i != timerInterfaces.end()); timerInterfaces.erase(i); } void RPCRunLater(const std::string& name, boost::function func, int64_t nSeconds) { if (timerInterfaces.empty()) throw JSONRPCError(RPC_INTERNAL_ERROR, "No timer handler registered for RPC"); deadlineTimers.erase(name); RPCTimerInterface* timerInterface = timerInterfaces.back(); LogPrint("rpc", "queue run of timer %s in %i seconds (using %s)\n", name, nSeconds, timerInterface->Name()); deadlineTimers.insert(std::make_pair(name, boost::shared_ptr(timerInterface->NewTimer(func, nSeconds*1000)))); } const CRPCTable tableRPC;