src/bitcoinrpc.cpp

   1 // Copyright (c) 2010 Satoshi Nakamoto
   2 // Copyright (c) 2009-2012 The Bitcoin developers
   3 // Distributed under the MIT/X11 software license, see the accompanying
   4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5
   6 #include "init.h"
   7 #include "util.h"
   8 #include "sync.h"
   9 #include "ui_interface.h"
  10 #include "base58.h"
  11 #include "bitcoinrpc.h"
  12 #include "db.h"
  13
  14 #undef printf
  15 #include <boost/asio.hpp>
  16 #include <boost/asio/ip/v6_only.hpp>
  17 #include <boost/bind.hpp>
  18 #include <boost/filesystem.hpp>
  19 #include <boost/foreach.hpp>
  20 #include <boost/iostreams/concepts.hpp>
  21 #include <boost/iostreams/stream.hpp>
  22 #include <boost/algorithm/string.hpp>
  23 #include <boost/lexical_cast.hpp>
  24 #include <boost/asio/ssl.hpp>
  25 #include <boost/filesystem/fstream.hpp>
  26 #include <boost/shared_ptr.hpp>
  27 #include <list>
  28
  29 #define printf OutputDebugStringF
  30
  31 using namespace std;
  32 using namespace boost;
  33 using namespace boost::asio;
  34 using namespace json_spirit;
  35
  36 void ThreadRPCServer2(void* parg);
  37
  38 static std::string strRPCUserColonPass;
  39
  40 const Object emptyobj;
  41
  42 void ThreadRPCServer3(void* parg);
  43
  44 static inline unsigned short GetDefaultRPCPort()
  45 {
  46     return GetBoolArg("-testnet", false) ? 18344 : 8344;
  47 }
  48
  49 Object JSONRPCError(int code, const string& message)
  50 {
  51     Object error;
  52     error.push_back(Pair("code", code));
  53     error.push_back(Pair("message", message));
  54     return error;
  55 }
  56
  57 void RPCTypeCheck(const Array& params,
  58                   const list<Value_type>& typesExpected,
  59                   bool fAllowNull)
  60 {
  61     unsigned int i = 0;
  62     BOOST_FOREACH(Value_type t, typesExpected)
  63     {
  64         if (params.size() <= i)
  65             break;
  66
  67         const Value& v = params[i];
  68         if (!((v.type() == t) || (fAllowNull && (v.type() == null_type))))
  69         {
  70             string err = strprintf("Expected type %s, got %s",
  71                                    Value_type_name[t], Value_type_name[v.type()]);
  72             throw JSONRPCError(RPC_TYPE_ERROR, err);
  73         }
  74         i++;
  75     }
  76 }
  77
  78 void RPCTypeCheck(const Object& o,
  79                   const map<string, Value_type>& typesExpected,
  80                   bool fAllowNull)
  81 {
  82     BOOST_FOREACH(const PAIRTYPE(string, Value_type)& t, typesExpected)
  83     {
  84         const Value& v = find_value(o, t.first);
  85         if (!fAllowNull && v.type() == null_type)
  86             throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Missing %s", t.first.c_str()));
  87
  88         if (!((v.type() == t.second) || (fAllowNull && (v.type() == null_type))))
  89         {
  90             string err = strprintf("Expected type %s for %s, got %s",
  91                                    Value_type_name[t.second], t.first.c_str(), Value_type_name[v.type()]);
  92             throw JSONRPCError(RPC_TYPE_ERROR, err);
  93         }
  94     }
  95 }
  96
  97 int64 AmountFromValue(const Value& value)
  98 {
  99     double dAmount = value.get_real();
 100     if (dAmount <= 0.0 || dAmount > MAX_MONEY)
 101         throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount");
 102     int64 nAmount = roundint64(dAmount * COIN);
 103     if (!MoneyRange(nAmount))
 104         throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount");
 105     return nAmount;
 106 }
 107
 108 Value ValueFromAmount(int64 amount)
 109 {
 110     return (double)amount / (double)COIN;
 111 }
 112
 113 std::string HexBits(unsigned int nBits)
 114 {
 115     union {
 116         int32_t nBits;
 117         char cBits[4];
 118     } uBits;
 119     uBits.nBits = htonl((int32_t)nBits);
 120     return HexStr(BEGIN(uBits.cBits), END(uBits.cBits));
 121 }
 122
 123
 124
 125 ///
 126 /// Note: This interface may still be subject to change.
 127 ///
 128
 129 string CRPCTable::help(string strCommand) const
 130 {
 131     string strRet;
 132     set<rpcfn_type> setDone;
 133     for (map<string, const CRPCCommand*>::const_iterator mi = mapCommands.begin(); mi != mapCommands.end(); ++mi)
 134     {
 135         const CRPCCommand *pcmd = mi->second;
 136         string strMethod = mi->first;
 137         // We already filter duplicates, but these deprecated screw up the sort order
 138         if (strMethod.find("label") != string::npos)
 139             continue;
 140         if (strCommand != "" && strMethod != strCommand)
 141             continue;
 142         try
 143         {
 144             Array params;
 145             rpcfn_type pfn = pcmd->actor;
 146             if (setDone.insert(pfn).second)
 147                 (*pfn)(params, true);
 148         }
 149         catch (std::exception& e)
 150         {
 151             // Help text is returned in an exception
 152             string strHelp = string(e.what());
 153             if (strCommand == "")
 154                 if (strHelp.find('\n') != string::npos)
 155                     strHelp = strHelp.substr(0, strHelp.find('\n'));
 156             strRet += strHelp + "\n";
 157         }
 158     }
 159     if (strRet == "")
 160         strRet = strprintf("help: unknown command: %s\n", strCommand.c_str());
 161     strRet = strRet.substr(0,strRet.size()-1);
 162     return strRet;
 163 }
 164
 165 Value help(const Array& params, bool fHelp)
 166 {
 167     if (fHelp || params.size() > 1)
 168         throw runtime_error(
 169             "help [command]\n"
 170             "List commands, or get help for a command.");
 171
 172     string strCommand;
 173     if (params.size() > 0)
 174         strCommand = params[0].get_str();
 175
 176     return tableRPC.help(strCommand);
 177 }
 178
 179
 180 Value stop(const Array& params, bool fHelp)
 181 {
 182     if (fHelp || params.size() > 1)
 183         throw runtime_error(
 184             "stop <detach>\n"
 185             "<detach> is true or false to detach the database or not for this stop only\n"
 186             "Stop NovaCoin server (and possibly override the detachdb config value).");
 187     // Shutdown will take long enough that the response should get back
 188     if (params.size() > 0)
 189         bitdb.SetDetach(params[0].get_bool());
 190     StartShutdown();
 191     return "NovaCoin server stopping";
 192 }
 193
 194
 195
 196 //
 197 // Call Table
 198 //
 199
 200
 201 static const CRPCCommand vRPCCommands[] =
 202 { //  name                      function                 safemd  unlocked
 203   //  ------------------------  -----------------------  ------  --------
 204     { "help",                   &help,                   true,   true },
 205     { "stop",                   &stop,                   true,   true },
 206     { "getbestblockhash",       &getbestblockhash,       true,   false },
 207     { "getblockcount",          &getblockcount,          true,   false },
 208     { "getconnectioncount",     &getconnectioncount,     true,   false },
 209     { "getpeerinfo",            &getpeerinfo,            true,   false },
 210     { "getdifficulty",          &getdifficulty,          true,   false },
 211     { "getinfo",                &getinfo,                true,   false },
 212     { "getmininginfo",          &getmininginfo,          true,   false },
 213     { "getnewaddress",          &getnewaddress,          true,   false },
 214     { "getnewpubkey",           &getnewpubkey,           true,   false },
 215     { "getaccountaddress",      &getaccountaddress,      true,   false },
 216     { "setaccount",             &setaccount,             true,   false },
 217     { "getaccount",             &getaccount,             false,  false },
 218     { "getaddressesbyaccount",  &getaddressesbyaccount,  true,   false },
 219     { "sendtoaddress",          &sendtoaddress,          false,  false },
 220     { "getreceivedbyaddress",   &getreceivedbyaddress,   false,  false },
 221     { "getreceivedbyaccount",   &getreceivedbyaccount,   false,  false },
 222     { "listreceivedbyaddress",  &listreceivedbyaddress,  false,  false },
 223     { "listreceivedbyaccount",  &listreceivedbyaccount,  false,  false },
 224     { "backupwallet",           &backupwallet,           true,   false },
 225     { "keypoolrefill",          &keypoolrefill,          true,   false },
 226     { "walletpassphrase",       &walletpassphrase,       true,   false },
 227     { "walletpassphrasechange", &walletpassphrasechange, false,  false },
 228     { "walletlock",             &walletlock,             true,   false },
 229     { "encryptwallet",          &encryptwallet,          false,  false },
 230     { "validateaddress",        &validateaddress,        true,   false },
 231     { "validatepubkey",         &validatepubkey,         true,   false },
 232     { "getbalance",             &getbalance,             false,  false },
 233     { "move",                   &movecmd,                false,  false },
 234     { "sendfrom",               &sendfrom,               false,  false },
 235     { "sendmany",               &sendmany,               false,  false },
 236     { "addmultisigaddress",     &addmultisigaddress,     false,  false },
 237     { "getrawmempool",          &getrawmempool,          true,   false },
 238     { "getblock",               &getblock,               false,  false },
 239     { "getblockbynumber",       &getblockbynumber,       false,  false },
 240     { "getblockhash",           &getblockhash,           false,  false },
 241     { "gettransaction",         &gettransaction,         false,  false },
 242     { "listtransactions",       &listtransactions,       false,  false },
 243     { "listaddressgroupings",   &listaddressgroupings,   false,  false },
 244     { "signmessage",            &signmessage,            false,  false },
 245     { "verifymessage",          &verifymessage,          false,  false },
 246     { "getwork",                &getwork,                true,   false },
 247     { "getworkex",              &getworkex,              true,   false },
 248     { "listaccounts",           &listaccounts,           false,  false },
 249     { "settxfee",               &settxfee,               false,  false },
 250     { "getblocktemplate",       &getblocktemplate,       true,   false },
 251     { "submitblock",            &submitblock,            false,  false },
 252     { "listsinceblock",         &listsinceblock,         false,  false },
 253     { "dumpprivkey",            &dumpprivkey,            false,  false },
 254     { "importprivkey",          &importprivkey,          false,  false },
 255     { "listunspent",            &listunspent,            false,  false },
 256     { "getrawtransaction",      &getrawtransaction,      false,  false },
 257     { "createrawtransaction",   &createrawtransaction,   false,  false },
 258     { "decoderawtransaction",   &decoderawtransaction,   false,  false },
 259     { "signrawtransaction",     &signrawtransaction,     false,  false },
 260     { "sendrawtransaction",     &sendrawtransaction,     false,  false },
 261     { "getcheckpoint",          &getcheckpoint,          true,   false },
 262     { "reservebalance",         &reservebalance,         false,  true},
 263     { "checkwallet",            &checkwallet,            false,  true},
 264     { "repairwallet",           &repairwallet,           false,  true},
 265     { "resendtx",               &resendtx,               false,  true},
 266     { "makekeypair",            &makekeypair,            false,  true},
 267     { "sendalert",              &sendalert,              false,  false},
 268 };
 269
 270 CRPCTable::CRPCTable()
 271 {
 272     unsigned int vcidx;
 273     for (vcidx = 0; vcidx < (sizeof(vRPCCommands) / sizeof(vRPCCommands[0])); vcidx++)
 274     {
 275         const CRPCCommand *pcmd;
 276
 277         pcmd = &vRPCCommands[vcidx];
 278         mapCommands[pcmd->name] = pcmd;
 279     }
 280 }
 281
 282 const CRPCCommand *CRPCTable::operator[](string name) const
 283 {
 284     map<string, const CRPCCommand*>::const_iterator it = mapCommands.find(name);
 285     if (it == mapCommands.end())
 286         return NULL;
 287     return (*it).second;
 288 }
 289
 290 //
 291 // HTTP protocol
 292 //
 293 // This ain't Apache.  We're just using HTTP header for the length field
 294 // and to be compatible with other JSON-RPC implementations.
 295 //
 296
 297 string HTTPPost(const string& strMsg, const map<string,string>& mapRequestHeaders)
 298 {
 299     ostringstream s;
 300     s << "POST / HTTP/1.1\r\n"
 301       << "User-Agent: novacoin-json-rpc/" << FormatFullVersion() << "\r\n"
 302       << "Host: 127.0.0.1\r\n"
 303       << "Content-Type: application/json\r\n"
 304       << "Content-Length: " << strMsg.size() << "\r\n"
 305       << "Connection: close\r\n"
 306       << "Accept: application/json\r\n";
 307     BOOST_FOREACH(const PAIRTYPE(string, string)& item, mapRequestHeaders)
 308         s << item.first << ": " << item.second << "\r\n";
 309     s << "\r\n" << strMsg;
 310
 311     return s.str();
 312 }
 313
 314 string rfc1123Time()
 315 {
 316     char buffer[64];
 317     time_t now;
 318     time(&now);
 319     struct tm* now_gmt = gmtime(&now);
 320     string locale(setlocale(LC_TIME, NULL));
 321     setlocale(LC_TIME, "C"); // we want POSIX (aka "C") weekday/month strings
 322     strftime(buffer, sizeof(buffer), "%a, %d %b %Y %H:%M:%S +0000", now_gmt);
 323     setlocale(LC_TIME, locale.c_str());
 324     return string(buffer);
 325 }
 326
 327 static string HTTPReply(int nStatus, const string& strMsg, bool keepalive)
 328 {
 329     if (nStatus == HTTP_UNAUTHORIZED)
 330         return strprintf("HTTP/1.0 401 Authorization Required\r\n"
 331             "Date: %s\r\n"
 332             "Server: novacoin-json-rpc/%s\r\n"
 333             "WWW-Authenticate: Basic realm=\"jsonrpc\"\r\n"
 334             "Content-Type: text/html\r\n"
 335             "Content-Length: 296\r\n"
 336             "\r\n"
 337             "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"\r\n"
 338             "\"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd\">\r\n"
 339             "<HTML>\r\n"
 340             "<HEAD>\r\n"
 341             "<TITLE>Error</TITLE>\r\n"
 342             "<META HTTP-EQUIV='Content-Type' CONTENT='text/html; charset=ISO-8859-1'>\r\n"
 343             "</HEAD>\r\n"
 344             "<BODY><H1>401 Unauthorized.</H1></BODY>\r\n"
 345             "</HTML>\r\n", rfc1123Time().c_str(), FormatFullVersion().c_str());
 346     const char *cStatus;
 347          if (nStatus == HTTP_OK) cStatus = "OK";
 348     else if (nStatus == HTTP_BAD_REQUEST) cStatus = "Bad Request";
 349     else if (nStatus == HTTP_FORBIDDEN) cStatus = "Forbidden";
 350     else if (nStatus == HTTP_NOT_FOUND) cStatus = "Not Found";
 351     else if (nStatus == HTTP_INTERNAL_SERVER_ERROR) cStatus = "Internal Server Error";
 352     else cStatus = "";
 353     return strprintf(
 354             "HTTP/1.1 %d %s\r\n"
 355             "Date: %s\r\n"
 356             "Connection: %s\r\n"
 357             "Content-Length: %"PRIszu"\r\n"
 358             "Content-Type: application/json\r\n"
 359             "Server: novacoin-json-rpc/%s\r\n"
 360             "\r\n"
 361             "%s",
 362         nStatus,
 363         cStatus,
 364         rfc1123Time().c_str(),
 365         keepalive ? "keep-alive" : "close",
 366         strMsg.size(),
 367         FormatFullVersion().c_str(),
 368         strMsg.c_str());
 369 }
 370
 371 int ReadHTTPStatus(std::basic_istream<char>& stream, int &proto)
 372 {
 373     string str;
 374     getline(stream, str);
 375     vector<string> vWords;
 376     boost::split(vWords, str, boost::is_any_of(" "));
 377     if (vWords.size() < 2)
 378         return HTTP_INTERNAL_SERVER_ERROR;
 379     proto = 0;
 380     const char *ver = strstr(str.c_str(), "HTTP/1.");
 381     if (ver != NULL)
 382         proto = atoi(ver+7);
 383     return atoi(vWords[1].c_str());
 384 }
 385
 386 int ReadHTTPHeader(std::basic_istream<char>& stream, map<string, string>& mapHeadersRet)
 387 {
 388     int nLen = 0;
 389     loop
 390     {
 391         string str;
 392         std::getline(stream, str);
 393         if (str.empty() || str == "\r")
 394             break;
 395         string::size_type nColon = str.find(":");
 396         if (nColon != string::npos)
 397         {
 398             string strHeader = str.substr(0, nColon);
 399             boost::trim(strHeader);
 400             boost::to_lower(strHeader);
 401             string strValue = str.substr(nColon+1);
 402             boost::trim(strValue);
 403             mapHeadersRet[strHeader] = strValue;
 404             if (strHeader == "content-length")
 405                 nLen = atoi(strValue.c_str());
 406         }
 407     }
 408     return nLen;
 409 }
 410
 411 int ReadHTTP(std::basic_istream<char>& stream, map<string, string>& mapHeadersRet, string& strMessageRet)
 412 {
 413     mapHeadersRet.clear();
 414     strMessageRet = "";
 415
 416     // Read status
 417     int nProto = 0;
 418     int nStatus = ReadHTTPStatus(stream, nProto);
 419
 420     // Read header
 421     int nLen = ReadHTTPHeader(stream, mapHeadersRet);
 422     if (nLen < 0 || nLen > (int)MAX_SIZE)
 423         return HTTP_INTERNAL_SERVER_ERROR;
 424
 425     // Read message
 426     if (nLen > 0)
 427     {
 428         vector<char> vch(nLen);
 429         stream.read(&vch[0], nLen);
 430         strMessageRet = string(vch.begin(), vch.end());
 431     }
 432
 433     string sConHdr = mapHeadersRet["connection"];
 434
 435     if ((sConHdr != "close") && (sConHdr != "keep-alive"))
 436     {
 437         if (nProto >= 1)
 438             mapHeadersRet["connection"] = "keep-alive";
 439         else
 440             mapHeadersRet["connection"] = "close";
 441     }
 442
 443     return nStatus;
 444 }
 445
 446 bool HTTPAuthorized(map<string, string>& mapHeaders)
 447 {
 448     string strAuth = mapHeaders["authorization"];
 449     if (strAuth.substr(0,6) != "Basic ")
 450         return false;
 451     string strUserPass64 = strAuth.substr(6); boost::trim(strUserPass64);
 452     string strUserPass = DecodeBase64(strUserPass64);
 453     return strUserPass == strRPCUserColonPass;
 454 }
 455
 456 //
 457 // JSON-RPC protocol.  Bitcoin speaks version 1.0 for maximum compatibility,
 458 // but uses JSON-RPC 1.1/2.0 standards for parts of the 1.0 standard that were
 459 // unspecified (HTTP errors and contents of 'error').
 460 //
 461 // 1.0 spec: http://json-rpc.org/wiki/specification
 462 // 1.2 spec: http://groups.google.com/group/json-rpc/web/json-rpc-over-http
 463 // http://www.codeproject.com/KB/recipes/JSON_Spirit.aspx
 464 //
 465
 466 string JSONRPCRequest(const string& strMethod, const Array& params, const Value& id)
 467 {
 468     Object request;
 469     request.push_back(Pair("method", strMethod));
 470     request.push_back(Pair("params", params));
 471     request.push_back(Pair("id", id));
 472     return write_string(Value(request), false) + "\n";
 473 }
 474
 475 Object JSONRPCReplyObj(const Value& result, const Value& error, const Value& id)
 476 {
 477     Object reply;
 478     if (error.type() != null_type)
 479         reply.push_back(Pair("result", Value::null));
 480     else
 481         reply.push_back(Pair("result", result));
 482     reply.push_back(Pair("error", error));
 483     reply.push_back(Pair("id", id));
 484     return reply;
 485 }
 486
 487 string JSONRPCReply(const Value& result, const Value& error, const Value& id)
 488 {
 489     Object reply = JSONRPCReplyObj(result, error, id);
 490     return write_string(Value(reply), false) + "\n";
 491 }
 492
 493 void ErrorReply(std::ostream& stream, const Object& objError, const Value& id)
 494 {
 495     // Send error reply from json-rpc error object
 496     int nStatus = HTTP_INTERNAL_SERVER_ERROR;
 497     int code = find_value(objError, "code").get_int();
 498     if (code == RPC_INVALID_REQUEST) nStatus = HTTP_BAD_REQUEST;
 499     else if (code == RPC_METHOD_NOT_FOUND) nStatus = HTTP_NOT_FOUND;
 500     string strReply = JSONRPCReply(Value::null, objError, id);
 501     stream << HTTPReply(nStatus, strReply, false) << std::flush;
 502 }
 503
 504 bool ClientAllowed(const boost::asio::ip::address& address)
 505 {
 506     // Make sure that IPv4-compatible and IPv4-mapped IPv6 addresses are treated as IPv4 addresses
 507     if (address.is_v6()
 508      && (address.to_v6().is_v4_compatible()
 509       || address.to_v6().is_v4_mapped()))
 510         return ClientAllowed(address.to_v6().to_v4());
 511
 512     if (address == asio::ip::address_v4::loopback()
 513      || address == asio::ip::address_v6::loopback()
 514      || (address.is_v4()
 515          // Check whether IPv4 addresses match 127.0.0.0/8 (loopback subnet)
 516       && (address.to_v4().to_ulong() & 0xff000000) == 0x7f000000))
 517         return true;
 518
 519     const string strAddress = address.to_string();
 520     const vector<string>& vAllow = mapMultiArgs["-rpcallowip"];
 521     BOOST_FOREACH(string strAllow, vAllow)
 522         if (WildcardMatch(strAddress, strAllow))
 523             return true;
 524     return false;
 525 }
 526
 527 //
 528 // IOStream device that speaks SSL but can also speak non-SSL
 529 //
 530 template <typename Protocol>
 531 class SSLIOStreamDevice : public iostreams::device<iostreams::bidirectional> {
 532 public:
 533     SSLIOStreamDevice(asio::ssl::stream<typename Protocol::socket> &streamIn, bool fUseSSLIn) : stream(streamIn)
 534     {
 535         fUseSSL = fUseSSLIn;
 536         fNeedHandshake = fUseSSLIn;
 537     }
 538
 539     void handshake(ssl::stream_base::handshake_type role)
 540     {
 541         if (!fNeedHandshake) return;
 542         fNeedHandshake = false;
 543         stream.handshake(role);
 544     }
 545     std::streamsize read(char* s, std::streamsize n)
 546     {
 547         handshake(ssl::stream_base::server); // HTTPS servers read first
 548         if (fUseSSL) return stream.read_some(asio::buffer(s, n));
 549         return stream.next_layer().read_some(asio::buffer(s, n));
 550     }
 551     std::streamsize write(const char* s, std::streamsize n)
 552     {
 553         handshake(ssl::stream_base::client); // HTTPS clients write first
 554         if (fUseSSL) return asio::write(stream, asio::buffer(s, n));
 555         return asio::write(stream.next_layer(), asio::buffer(s, n));
 556     }
 557     bool connect(const std::string& server, const std::string& port)
 558     {
 559         ip::tcp::resolver resolver(stream.get_io_service());
 560         ip::tcp::resolver::query query(server.c_str(), port.c_str());
 561         ip::tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);
 562         ip::tcp::resolver::iterator end;
 563         boost::system::error_code error = asio::error::host_not_found;
 564         while (error && endpoint_iterator != end)
 565         {
 566             stream.lowest_layer().close();
 567             stream.lowest_layer().connect(*endpoint_iterator++, error);
 568         }
 569         if (error)
 570             return false;
 571         return true;
 572     }
 573
 574 private:
 575     bool fNeedHandshake;
 576     bool fUseSSL;
 577     asio::ssl::stream<typename Protocol::socket>& stream;
 578 };
 579
 580 class AcceptedConnection
 581 {
 582 public:
 583     virtual ~AcceptedConnection() {}
 584
 585     virtual std::iostream& stream() = 0;
 586     virtual std::string peer_address_to_string() const = 0;
 587     virtual void close() = 0;
 588 };
 589
 590 template <typename Protocol>
 591 class AcceptedConnectionImpl : public AcceptedConnection
 592 {
 593 public:
 594     AcceptedConnectionImpl(
 595             asio::io_service& io_service,
 596             ssl::context &context,
 597             bool fUseSSL) :
 598         sslStream(io_service, context),
 599         _d(sslStream, fUseSSL),
 600         _stream(_d)
 601     {
 602     }
 603
 604     virtual std::iostream& stream()
 605     {
 606         return _stream;
 607     }
 608
 609     virtual std::string peer_address_to_string() const
 610     {
 611         return peer.address().to_string();
 612     }
 613
 614     virtual void close()
 615     {
 616         _stream.close();
 617     }
 618
 619     typename Protocol::endpoint peer;
 620     asio::ssl::stream<typename Protocol::socket> sslStream;
 621
 622 private:
 623     SSLIOStreamDevice<Protocol> _d;
 624     iostreams::stream< SSLIOStreamDevice<Protocol> > _stream;
 625 };
 626
 627 void ThreadRPCServer(void* parg)
 628 {
 629     // Make this thread recognisable as the RPC listener
 630     RenameThread("bitcoin-rpclist");
 631
 632     try
 633     {
 634         vnThreadsRunning[THREAD_RPCLISTENER]++;
 635         ThreadRPCServer2(parg);
 636         vnThreadsRunning[THREAD_RPCLISTENER]--;
 637     }
 638     catch (std::exception& e) {
 639         vnThreadsRunning[THREAD_RPCLISTENER]--;
 640         PrintException(&e, "ThreadRPCServer()");
 641     } catch (...) {
 642         vnThreadsRunning[THREAD_RPCLISTENER]--;
 643         PrintException(NULL, "ThreadRPCServer()");
 644     }
 645     printf("ThreadRPCServer exited\n");
 646 }
 647
 648 // Forward declaration required for RPCListen
 649 template <typename Protocol, typename SocketAcceptorService>
 650 static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
 651                              ssl::context& context,
 652                              bool fUseSSL,
 653                              AcceptedConnection* conn,
 654                              const boost::system::error_code& error);
 655
 656 /**
 657  * Sets up I/O resources to accept and handle a new connection.
 658  */
 659 template <typename Protocol, typename SocketAcceptorService>
 660 static void RPCListen(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
 661                    ssl::context& context,
 662                    const bool fUseSSL)
 663 {
 664     // Accept connection
 665     AcceptedConnectionImpl<Protocol>* conn = new AcceptedConnectionImpl<Protocol>(acceptor->get_io_service(), context, fUseSSL);
 666
 667     acceptor->async_accept(
 668             conn->sslStream.lowest_layer(),
 669             conn->peer,
 670             boost::bind(&RPCAcceptHandler<Protocol, SocketAcceptorService>,
 671                 acceptor,
 672                 boost::ref(context),
 673                 fUseSSL,
 674                 conn,
 675                 boost::asio::placeholders::error));
 676 }
 677
 678 /**
 679  * Accept and handle incoming connection.
 680  */
 681 template <typename Protocol, typename SocketAcceptorService>
 682 static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
 683                              ssl::context& context,
 684                              const bool fUseSSL,
 685                              AcceptedConnection* conn,
 686                              const boost::system::error_code& error)
 687 {
 688     vnThreadsRunning[THREAD_RPCLISTENER]++;
 689
 690     // Immediately start accepting new connections, except when we're cancelled or our socket is closed.
 691     if (error != asio::error::operation_aborted
 692      && acceptor->is_open())
 693         RPCListen(acceptor, context, fUseSSL);
 694
 695     AcceptedConnectionImpl<ip::tcp>* tcp_conn = dynamic_cast< AcceptedConnectionImpl<ip::tcp>* >(conn);
 696
 697     // TODO: Actually handle errors
 698     if (error)
 699     {
 700         delete conn;
 701     }
 702
 703     // Restrict callers by IP.  It is important to
 704     // do this before starting client thread, to filter out
 705     // certain DoS and misbehaving clients.
 706     else if (tcp_conn
 707           && !ClientAllowed(tcp_conn->peer.address()))
 708     {
 709         // Only send a 403 if we're not using SSL to prevent a DoS during the SSL handshake.
 710         if (!fUseSSL)
 711             conn->stream() << HTTPReply(HTTP_FORBIDDEN, "", false) << std::flush;
 712         delete conn;
 713     }
 714
 715     // start HTTP client thread
 716     else if (!NewThread(ThreadRPCServer3, conn)) {
 717         printf("Failed to create RPC server client thread\n");
 718         delete conn;
 719     }
 720
 721     vnThreadsRunning[THREAD_RPCLISTENER]--;
 722 }
 723
 724 void ThreadRPCServer2(void* parg)
 725 {
 726     printf("ThreadRPCServer started\n");
 727
 728     strRPCUserColonPass = mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"];
 729     if (mapArgs["-rpcpassword"] == "")
 730     {
 731         unsigned char rand_pwd[32];
 732         RAND_bytes(rand_pwd, 32);
 733         string strWhatAmI = "To use novacoind";
 734         if (mapArgs.count("-server"))
 735             strWhatAmI = strprintf(_("To use the %s option"), "\"-server\"");
 736         else if (mapArgs.count("-daemon"))
 737             strWhatAmI = strprintf(_("To use the %s option"), "\"-daemon\"");
 738         uiInterface.ThreadSafeMessageBox(strprintf(
 739             _("%s, you must set a rpcpassword in the configuration file:\n %s\n"
 740               "It is recommended you use the following random password:\n"
 741               "rpcuser=bitcoinrpc\n"
 742               "rpcpassword=%s\n"
 743               "(you do not need to remember this password)\n"
 744               "If the file does not exist, create it with owner-readable-only file permissions.\n"),
 745                 strWhatAmI.c_str(),
 746                 GetConfigFile().string().c_str(),
 747                 EncodeBase58(&rand_pwd[0],&rand_pwd[0]+32).c_str()),
 748             _("Error"), CClientUIInterface::OK | CClientUIInterface::MODAL);
 749         StartShutdown();
 750         return;
 751     }
 752
 753     const bool fUseSSL = GetBoolArg("-rpcssl");
 754
 755     asio::io_service io_service;
 756
 757     ssl::context context(io_service, ssl::context::sslv23);
 758     if (fUseSSL)
 759     {
 760         context.set_options(ssl::context::no_sslv2);
 761
 762         filesystem::path pathCertFile(GetArg("-rpcsslcertificatechainfile", "server.cert"));
 763         if (!pathCertFile.is_complete()) pathCertFile = filesystem::path(GetDataDir()) / pathCertFile;
 764         if (filesystem::exists(pathCertFile)) context.use_certificate_chain_file(pathCertFile.string());
 765         else printf("ThreadRPCServer ERROR: missing server certificate file %s\n", pathCertFile.string().c_str());
 766
 767         filesystem::path pathPKFile(GetArg("-rpcsslprivatekeyfile", "server.pem"));
 768         if (!pathPKFile.is_complete()) pathPKFile = filesystem::path(GetDataDir()) / pathPKFile;
 769         if (filesystem::exists(pathPKFile)) context.use_private_key_file(pathPKFile.string(), ssl::context::pem);
 770         else printf("ThreadRPCServer ERROR: missing server private key file %s\n", pathPKFile.string().c_str());
 771
 772         string strCiphers = GetArg("-rpcsslciphers", "TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!AH:!3DES:@STRENGTH");
 773         SSL_CTX_set_cipher_list(context.impl(), strCiphers.c_str());
 774     }
 775
 776     // Try a dual IPv6/IPv4 socket, falling back to separate IPv4 and IPv6 sockets
 777     const bool loopback = !mapArgs.count("-rpcallowip");
 778     asio::ip::address bindAddress = loopback ? asio::ip::address_v6::loopback() : asio::ip::address_v6::any();
 779     ip::tcp::endpoint endpoint(bindAddress, GetArg("-rpcport", GetDefaultRPCPort()));
 780     boost::system::error_code v6_only_error;
 781     boost::shared_ptr<ip::tcp::acceptor> acceptor(new ip::tcp::acceptor(io_service));
 782
 783     boost::signals2::signal<void ()> StopRequests;
 784
 785     bool fListening = false;
 786     std::string strerr;
 787     try
 788     {
 789         acceptor->open(endpoint.protocol());
 790         acceptor->set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
 791
 792         // Try making the socket dual IPv6/IPv4 (if listening on the "any" address)
 793         acceptor->set_option(boost::asio::ip::v6_only(loopback), v6_only_error);
 794
 795         acceptor->bind(endpoint);
 796         acceptor->listen(socket_base::max_connections);
 797
 798         RPCListen(acceptor, context, fUseSSL);
 799         // Cancel outstanding listen-requests for this acceptor when shutting down
 800         StopRequests.connect(signals2::slot<void ()>(
 801                     static_cast<void (ip::tcp::acceptor::*)()>(&ip::tcp::acceptor::close), acceptor.get())
 802                 .track(acceptor));
 803
 804         fListening = true;
 805     }
 806     catch(boost::system::system_error &e)
 807     {
 808         strerr = strprintf(_("An error occurred while setting up the RPC port %u for listening on IPv6, falling back to IPv4: %s"), endpoint.port(), e.what());
 809     }
 810
 811     try {
 812         // If dual IPv6/IPv4 failed (or we're opening loopback interfaces only), open IPv4 separately
 813         if (!fListening || loopback || v6_only_error)
 814         {
 815             bindAddress = loopback ? asio::ip::address_v4::loopback() : asio::ip::address_v4::any();
 816             endpoint.address(bindAddress);
 817
 818             acceptor.reset(new ip::tcp::acceptor(io_service));
 819             acceptor->open(endpoint.protocol());
 820             acceptor->set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
 821             acceptor->bind(endpoint);
 822             acceptor->listen(socket_base::max_connections);
 823
 824             RPCListen(acceptor, context, fUseSSL);
 825             // Cancel outstanding listen-requests for this acceptor when shutting down
 826             StopRequests.connect(signals2::slot<void ()>(
 827                         static_cast<void (ip::tcp::acceptor::*)()>(&ip::tcp::acceptor::close), acceptor.get())
 828                     .track(acceptor));
 829
 830             fListening = true;
 831         }
 832     }
 833     catch(boost::system::system_error &e)
 834     {
 835         strerr = strprintf(_("An error occurred while setting up the RPC port %u for listening on IPv4: %s"), endpoint.port(), e.what());
 836     }
 837
 838     if (!fListening) {
 839         uiInterface.ThreadSafeMessageBox(strerr, _("Error"), CClientUIInterface::OK | CClientUIInterface::MODAL);
 840         StartShutdown();
 841         return;
 842     }
 843
 844     vnThreadsRunning[THREAD_RPCLISTENER]--;
 845     while (!fShutdown)
 846         io_service.run_one();
 847     vnThreadsRunning[THREAD_RPCLISTENER]++;
 848     StopRequests();
 849 }
 850
 851 class JSONRequest
 852 {
 853 public:
 854     Value id;
 855     string strMethod;
 856     Array params;
 857
 858     JSONRequest() { id = Value::null; }
 859     void parse(const Value& valRequest);
 860 };
 861
 862 void JSONRequest::parse(const Value& valRequest)
 863 {
 864     // Parse request
 865     if (valRequest.type() != obj_type)
 866         throw JSONRPCError(RPC_INVALID_REQUEST, "Invalid Request object");
 867     const Object& request = valRequest.get_obj();
 868
 869     // Parse id now so errors from here on will have the id
 870     id = find_value(request, "id");
 871
 872     // Parse method
 873     Value valMethod = find_value(request, "method");
 874     if (valMethod.type() == null_type)
 875         throw JSONRPCError(RPC_INVALID_REQUEST, "Missing method");
 876     if (valMethod.type() != str_type)
 877         throw JSONRPCError(RPC_INVALID_REQUEST, "Method must be a string");
 878     strMethod = valMethod.get_str();
 879     if (strMethod != "getwork" && strMethod != "getblocktemplate")
 880         printf("ThreadRPCServer method=%s\n", strMethod.c_str());
 881
 882     // Parse params
 883     Value valParams = find_value(request, "params");
 884     if (valParams.type() == array_type)
 885         params = valParams.get_array();
 886     else if (valParams.type() == null_type)
 887         params = Array();
 888     else
 889         throw JSONRPCError(RPC_INVALID_REQUEST, "Params must be an array");
 890 }
 891
 892 static Object JSONRPCExecOne(const Value& req)
 893 {
 894     Object rpc_result;
 895
 896     JSONRequest jreq;
 897     try {
 898         jreq.parse(req);
 899
 900         Value result = tableRPC.execute(jreq.strMethod, jreq.params);
 901         rpc_result = JSONRPCReplyObj(result, Value::null, jreq.id);
 902     }
 903     catch (Object& objError)
 904     {
 905         rpc_result = JSONRPCReplyObj(Value::null, objError, jreq.id);
 906     }
 907     catch (std::exception& e)
 908     {
 909         rpc_result = JSONRPCReplyObj(Value::null,
 910                                      JSONRPCError(RPC_PARSE_ERROR, e.what()), jreq.id);
 911     }
 912
 913     return rpc_result;
 914 }
 915
 916 static string JSONRPCExecBatch(const Array& vReq)
 917 {
 918     Array ret;
 919     for (unsigned int reqIdx = 0; reqIdx < vReq.size(); reqIdx++)
 920         ret.push_back(JSONRPCExecOne(vReq[reqIdx]));
 921
 922     return write_string(Value(ret), false) + "\n";
 923 }
 924
 925 static CCriticalSection cs_THREAD_RPCHANDLER;
 926
 927 void ThreadRPCServer3(void* parg)
 928 {
 929     // Make this thread recognisable as the RPC handler
 930     RenameThread("bitcoin-rpchand");
 931
 932     {
 933         LOCK(cs_THREAD_RPCHANDLER);
 934         vnThreadsRunning[THREAD_RPCHANDLER]++;
 935     }
 936     AcceptedConnection *conn = (AcceptedConnection *) parg;
 937
 938     bool fRun = true;
 939     loop {
 940         if (fShutdown || !fRun)
 941         {
 942             conn->close();
 943             delete conn;
 944             {
 945                 LOCK(cs_THREAD_RPCHANDLER);
 946                 --vnThreadsRunning[THREAD_RPCHANDLER];
 947             }
 948             return;
 949         }
 950         map<string, string> mapHeaders;
 951         string strRequest;
 952
 953         ReadHTTP(conn->stream(), mapHeaders, strRequest);
 954
 955         // Check authorization
 956         if (mapHeaders.count("authorization") == 0)
 957         {
 958             conn->stream() << HTTPReply(HTTP_UNAUTHORIZED, "", false) << std::flush;
 959             break;
 960         }
 961         if (!HTTPAuthorized(mapHeaders))
 962         {
 963             printf("ThreadRPCServer incorrect password attempt from %s\n", conn->peer_address_to_string().c_str());
 964             /* Deter brute-forcing short passwords.
 965                If this results in a DOS the user really
 966                shouldn't have their RPC port exposed.*/
 967             if (mapArgs["-rpcpassword"].size() < 20)
 968                 Sleep(250);
 969
 970             conn->stream() << HTTPReply(HTTP_UNAUTHORIZED, "", false) << std::flush;
 971             break;
 972         }
 973         if (mapHeaders["connection"] == "close")
 974             fRun = false;
 975
 976         JSONRequest jreq;
 977         try
 978         {
 979             // Parse request
 980             Value valRequest;
 981             if (!read_string(strRequest, valRequest))
 982                 throw JSONRPCError(RPC_PARSE_ERROR, "Parse error");
 983
 984             string strReply;
 985
 986             // singleton request
 987             if (valRequest.type() == obj_type) {
 988                 jreq.parse(valRequest);
 989
 990                 Value result = tableRPC.execute(jreq.strMethod, jreq.params);
 991
 992                 // Send reply
 993                 strReply = JSONRPCReply(result, Value::null, jreq.id);
 994
 995             // array of requests
 996             } else if (valRequest.type() == array_type)
 997                 strReply = JSONRPCExecBatch(valRequest.get_array());
 998             else
 999                 throw JSONRPCError(RPC_PARSE_ERROR, "Top-level object parse error");
1000
1001             conn->stream() << HTTPReply(HTTP_OK, strReply, fRun) << std::flush;
1002         }
1003         catch (Object& objError)
1004         {
1005             ErrorReply(conn->stream(), objError, jreq.id);
1006             break;
1007         }
1008         catch (std::exception& e)
1009         {
1010             ErrorReply(conn->stream(), JSONRPCError(RPC_PARSE_ERROR, e.what()), jreq.id);
1011             break;
1012         }
1013     }
1014
1015     delete conn;
1016     {
1017         LOCK(cs_THREAD_RPCHANDLER);
1018         vnThreadsRunning[THREAD_RPCHANDLER]--;
1019     }
1020 }
1021
1022 json_spirit::Value CRPCTable::execute(const std::string &strMethod, const json_spirit::Array &params) const
1023 {
1024     // Find method
1025     const CRPCCommand *pcmd = tableRPC[strMethod];
1026     if (!pcmd)
1027         throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found");
1028
1029     // Observe safe mode
1030     string strWarning = GetWarnings("rpc");
1031     if (strWarning != "" && !GetBoolArg("-disablesafemode") &&
1032         !pcmd->okSafeMode)
1033         throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE, string("Safe mode: ") + strWarning);
1034
1035     try
1036     {
1037         // Execute
1038         Value result;
1039         {
1040             if (pcmd->unlocked)
1041                 result = pcmd->actor(params, false);
1042             else {
1043                 LOCK2(cs_main, pwalletMain->cs_wallet);
1044                 result = pcmd->actor(params, false);
1045             }
1046         }
1047         return result;
1048     }
1049     catch (std::exception& e)
1050     {
1051         throw JSONRPCError(RPC_MISC_ERROR, e.what());
1052     }
1053 }
1054
1055
1056 Object CallRPC(const string& strMethod, const Array& params)
1057 {
1058     if (mapArgs["-rpcuser"] == "" && mapArgs["-rpcpassword"] == "")
1059         throw runtime_error(strprintf(
1060             _("You must set rpcpassword=<password> in the configuration file:\n%s\n"
1061               "If the file does not exist, create it with owner-readable-only file permissions."),
1062                 GetConfigFile().string().c_str()));
1063
1064     // Connect to localhost
1065     bool fUseSSL = GetBoolArg("-rpcssl");
1066     asio::io_service io_service;
1067     ssl::context context(io_service, ssl::context::sslv23);
1068     context.set_options(ssl::context::no_sslv2);
1069     asio::ssl::stream<asio::ip::tcp::socket> sslStream(io_service, context);
1070     SSLIOStreamDevice<asio::ip::tcp> d(sslStream, fUseSSL);
1071     iostreams::stream< SSLIOStreamDevice<asio::ip::tcp> > stream(d);
1072     if (!d.connect(GetArg("-rpcconnect", "127.0.0.1"), GetArg("-rpcport", itostr(GetDefaultRPCPort()))))
1073         throw runtime_error("couldn't connect to server");
1074
1075     // HTTP basic authentication
1076     string strUserPass64 = EncodeBase64(mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"]);
1077     map<string, string> mapRequestHeaders;
1078     mapRequestHeaders["Authorization"] = string("Basic ") + strUserPass64;
1079
1080     // Send request
1081     string strRequest = JSONRPCRequest(strMethod, params, 1);
1082     string strPost = HTTPPost(strRequest, mapRequestHeaders);
1083     stream << strPost << std::flush;
1084
1085     // Receive reply
1086     map<string, string> mapHeaders;
1087     string strReply;
1088     int nStatus = ReadHTTP(stream, mapHeaders, strReply);
1089     if (nStatus == HTTP_UNAUTHORIZED)
1090         throw runtime_error("incorrect rpcuser or rpcpassword (authorization failed)");
1091     else if (nStatus >= 400 && nStatus != HTTP_BAD_REQUEST && nStatus != HTTP_NOT_FOUND && nStatus != HTTP_INTERNAL_SERVER_ERROR)
1092         throw runtime_error(strprintf("server returned HTTP error %d", nStatus));
1093     else if (strReply.empty())
1094         throw runtime_error("no response from server");
1095
1096     // Parse reply
1097     Value valReply;
1098     if (!read_string(strReply, valReply))
1099         throw runtime_error("couldn't parse reply from server");
1100     const Object& reply = valReply.get_obj();
1101     if (reply.empty())
1102         throw runtime_error("expected reply to have result, error and id properties");
1103
1104     return reply;
1105 }
1106
1107
1108
1109
1110 template<typename T>
1111 void ConvertTo(Value& value, bool fAllowNull=false)
1112 {
1113     if (fAllowNull && value.type() == null_type)
1114         return;
1115     if (value.type() == str_type)
1116     {
1117         // reinterpret string as unquoted json value
1118         Value value2;
1119         string strJSON = value.get_str();
1120         if (!read_string(strJSON, value2))
1121             throw runtime_error(string("Error parsing JSON:")+strJSON);
1122         ConvertTo<T>(value2, fAllowNull);
1123         value = value2;
1124     }
1125     else
1126     {
1127         value = value.get_value<T>();
1128     }
1129 }
1130
1131 // Convert strings to command-specific RPC representation
1132 Array RPCConvertValues(const std::string &strMethod, const std::vector<std::string> &strParams)
1133 {
1134     Array params;
1135     BOOST_FOREACH(const std::string &param, strParams)
1136         params.push_back(param);
1137
1138     int n = params.size();
1139
1140     //
1141     // Special case non-string parameter types
1142     //
1143     if (strMethod == "stop"                   && n > 0) ConvertTo<bool>(params[0]);
1144     if (strMethod == "sendtoaddress"          && n > 1) ConvertTo<double>(params[1]);
1145     if (strMethod == "settxfee"               && n > 0) ConvertTo<double>(params[0]);
1146     if (strMethod == "getreceivedbyaddress"   && n > 1) ConvertTo<boost::int64_t>(params[1]);
1147     if (strMethod == "getreceivedbyaccount"   && n > 1) ConvertTo<boost::int64_t>(params[1]);
1148     if (strMethod == "listreceivedbyaddress"  && n > 0) ConvertTo<boost::int64_t>(params[0]);
1149     if (strMethod == "listreceivedbyaddress"  && n > 1) ConvertTo<bool>(params[1]);
1150     if (strMethod == "listreceivedbyaccount"  && n > 0) ConvertTo<boost::int64_t>(params[0]);
1151     if (strMethod == "listreceivedbyaccount"  && n > 1) ConvertTo<bool>(params[1]);
1152     if (strMethod == "getbalance"             && n > 1) ConvertTo<boost::int64_t>(params[1]);
1153     if (strMethod == "getblock"               && n > 1) ConvertTo<bool>(params[1]);
1154     if (strMethod == "getblockbynumber"       && n > 0) ConvertTo<boost::int64_t>(params[0]);
1155     if (strMethod == "getblockbynumber"       && n > 1) ConvertTo<bool>(params[1]);
1156     if (strMethod == "getblockhash"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
1157     if (strMethod == "move"                   && n > 2) ConvertTo<double>(params[2]);
1158     if (strMethod == "move"                   && n > 3) ConvertTo<boost::int64_t>(params[3]);
1159     if (strMethod == "sendfrom"               && n > 2) ConvertTo<double>(params[2]);
1160     if (strMethod == "sendfrom"               && n > 3) ConvertTo<boost::int64_t>(params[3]);
1161     if (strMethod == "listtransactions"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
1162     if (strMethod == "listtransactions"       && n > 2) ConvertTo<boost::int64_t>(params[2]);
1163     if (strMethod == "listaccounts"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
1164     if (strMethod == "walletpassphrase"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
1165     if (strMethod == "walletpassphrase"       && n > 2) ConvertTo<bool>(params[2]);
1166     if (strMethod == "getblocktemplate"       && n > 0) ConvertTo<Object>(params[0]);
1167     if (strMethod == "listsinceblock"         && n > 1) ConvertTo<boost::int64_t>(params[1]);
1168     if (strMethod == "sendmany"               && n > 1) ConvertTo<Object>(params[1]);
1169     if (strMethod == "sendmany"               && n > 2) ConvertTo<boost::int64_t>(params[2]);
1170     if (strMethod == "reservebalance"         && n > 0) ConvertTo<bool>(params[0]);
1171     if (strMethod == "reservebalance"         && n > 1) ConvertTo<double>(params[1]);
1172     if (strMethod == "addmultisigaddress"     && n > 0) ConvertTo<boost::int64_t>(params[0]);
1173     if (strMethod == "addmultisigaddress"     && n > 1) ConvertTo<Array>(params[1]);
1174     if (strMethod == "listunspent"            && n > 0) ConvertTo<boost::int64_t>(params[0]);
1175     if (strMethod == "listunspent"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
1176     if (strMethod == "listunspent"            && n > 2) ConvertTo<Array>(params[2]);
1177     if (strMethod == "getrawtransaction"      && n > 1) ConvertTo<boost::int64_t>(params[1]);
1178     if (strMethod == "createrawtransaction"   && n > 0) ConvertTo<Array>(params[0]);
1179     if (strMethod == "createrawtransaction"   && n > 1) ConvertTo<Object>(params[1]);
1180     if (strMethod == "signrawtransaction"     && n > 1) ConvertTo<Array>(params[1], true);
1181     if (strMethod == "signrawtransaction"     && n > 2) ConvertTo<Array>(params[2], true);
1182
1183     return params;
1184 }
1185
1186 int CommandLineRPC(int argc, char *argv[])
1187 {
1188     string strPrint;
1189     int nRet = 0;
1190     try
1191     {
1192         // Skip switches
1193         while (argc > 1 && IsSwitchChar(argv[1][0]))
1194         {
1195             argc--;
1196             argv++;
1197         }
1198
1199         // Method
1200         if (argc < 2)
1201             throw runtime_error("too few parameters");
1202         string strMethod = argv[1];
1203
1204         // Parameters default to strings
1205         std::vector<std::string> strParams(&argv[2], &argv[argc]);
1206         Array params = RPCConvertValues(strMethod, strParams);
1207
1208         // Execute
1209         Object reply = CallRPC(strMethod, params);
1210
1211         // Parse reply
1212         const Value& result = find_value(reply, "result");
1213         const Value& error  = find_value(reply, "error");
1214
1215         if (error.type() != null_type)
1216         {
1217             // Error
1218             strPrint = "error: " + write_string(error, false);
1219             int code = find_value(error.get_obj(), "code").get_int();
1220             nRet = abs(code);
1221         }
1222         else
1223         {
1224             // Result
1225             if (result.type() == null_type)
1226                 strPrint = "";
1227             else if (result.type() == str_type)
1228                 strPrint = result.get_str();
1229             else
1230                 strPrint = write_string(result, true);
1231         }
1232     }
1233     catch (std::exception& e)
1234     {
1235         strPrint = string("error: ") + e.what();
1236         nRet = 87;
1237     }
1238     catch (...)
1239     {
1240         PrintException(NULL, "CommandLineRPC()");
1241     }
1242
1243     if (strPrint != "")
1244     {
1245         fprintf((nRet == 0 ? stdout : stderr), "%s\n", strPrint.c_str());
1246     }
1247     return nRet;
1248 }
1249
1250
1251
1252
1253 #ifdef TEST
1254 int main(int argc, char *argv[])
1255 {
1256 #ifdef _MSC_VER
1257     // Turn off Microsoft heap dump noise
1258     _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE);
1259     _CrtSetReportFile(_CRT_WARN, CreateFile("NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0));
1260 #endif
1261     setbuf(stdin, NULL);
1262     setbuf(stdout, NULL);
1263     setbuf(stderr, NULL);
1264
1265     try
1266     {
1267         if (argc >= 2 && string(argv[1]) == "-server")
1268         {
1269             printf("server ready\n");
1270             ThreadRPCServer(NULL);
1271         }
1272         else
1273         {
1274             return CommandLineRPC(argc, argv);
1275         }
1276     }
1277     catch (std::exception& e) {
1278         PrintException(&e, "main()");
1279     } catch (...) {
1280         PrintException(NULL, "main()");
1281     }
1282     return 0;
1283 }
1284 #endif
1285
1286 const CRPCTable tableRPC;