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_t 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_t 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_t 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 // Utilities: convert hex-encoded Values
 126 // (throws error if not hex).
 127 //
 128 uint256 ParseHashV(const Value& v, string strName)
 129 {
 130     string strHex;
 131     if (v.type() == str_type)
 132         strHex = v.get_str();
 133     if (!IsHex(strHex)) // Note: IsHex("") is false
 134         throw JSONRPCError(RPC_INVALID_PARAMETER, strName+" must be hexadecimal string (not '"+strHex+"')");
 135     uint256 result;
 136     result.SetHex(strHex);
 137     return result;
 138 }
 139
 140 uint256 ParseHashO(const Object& o, string strKey)
 141 {
 142     return ParseHashV(find_value(o, strKey), strKey);
 143 }
 144
 145 vector<unsigned char> ParseHexV(const Value& v, string strName)
 146 {
 147     string strHex;
 148     if (v.type() == str_type)
 149         strHex = v.get_str();
 150     if (!IsHex(strHex))
 151         throw JSONRPCError(RPC_INVALID_PARAMETER, strName+" must be hexadecimal string (not '"+strHex+"')");
 152     return ParseHex(strHex);
 153 }
 154
 155 vector<unsigned char> ParseHexO(const Object& o, string strKey)
 156 {
 157     return ParseHexV(find_value(o, strKey), strKey);
 158 }
 159
 160
 161 ///
 162 /// Note: This interface may still be subject to change.
 163 ///
 164
 165 string CRPCTable::help(string strCommand) const
 166 {
 167     string strRet;
 168     set<rpcfn_type> setDone;
 169     for (map<string, const CRPCCommand*>::const_iterator mi = mapCommands.begin(); mi != mapCommands.end(); ++mi)
 170     {
 171         const CRPCCommand *pcmd = mi->second;
 172         string strMethod = mi->first;
 173         // We already filter duplicates, but these deprecated screw up the sort order
 174         if (strMethod.find("label") != string::npos)
 175             continue;
 176         if (strCommand != "" && strMethod != strCommand)
 177             continue;
 178         try
 179         {
 180             Array params;
 181             rpcfn_type pfn = pcmd->actor;
 182             if (setDone.insert(pfn).second)
 183                 (*pfn)(params, true);
 184         }
 185         catch (std::exception& e)
 186         {
 187             // Help text is returned in an exception
 188             string strHelp = string(e.what());
 189             if (strCommand == "")
 190                 if (strHelp.find('\n') != string::npos)
 191                     strHelp = strHelp.substr(0, strHelp.find('\n'));
 192             strRet += strHelp + "\n";
 193         }
 194     }
 195     if (strRet == "")
 196         strRet = strprintf("help: unknown command: %s\n", strCommand.c_str());
 197     strRet = strRet.substr(0,strRet.size()-1);
 198     return strRet;
 199 }
 200
 201 Value help(const Array& params, bool fHelp)
 202 {
 203     if (fHelp || params.size() > 1)
 204         throw runtime_error(
 205             "help [command]\n"
 206             "List commands, or get help for a command.");
 207
 208     string strCommand;
 209     if (params.size() > 0)
 210         strCommand = params[0].get_str();
 211
 212     return tableRPC.help(strCommand);
 213 }
 214
 215
 216 Value stop(const Array& params, bool fHelp)
 217 {
 218     if (fHelp || params.size() > 1)
 219         throw runtime_error(
 220             "stop <detach>\n"
 221             "<detach> is true or false to detach the database or not for this stop only\n"
 222             "Stop NovaCoin server (and possibly override the detachdb config value).");
 223     // Shutdown will take long enough that the response should get back
 224     if (params.size() > 0)
 225         bitdb.SetDetach(params[0].get_bool());
 226     StartShutdown();
 227     return "NovaCoin server stopping";
 228 }
 229
 230
 231
 232 //
 233 // Call Table
 234 //
 235
 236
 237 static const CRPCCommand vRPCCommands[] =
 238 { //  name                      function                 safemd  unlocked
 239   //  ------------------------  -----------------------  ------  --------
 240     { "help",                   &help,                   true,   true },
 241     { "stop",                   &stop,                   true,   true },
 242     { "getbestblockhash",       &getbestblockhash,       true,   false },
 243     { "getblockcount",          &getblockcount,          true,   false },
 244     { "getconnectioncount",     &getconnectioncount,     true,   false },
 245     { "getaddrmaninfo",         &getaddrmaninfo,         true,   false },
 246     { "getpeerinfo",            &getpeerinfo,            true,   false },
 247     { "addnode",                &addnode,                true,   true  },
 248     { "getaddednodeinfo",       &getaddednodeinfo,       true,   true  },
 249     { "getdifficulty",          &getdifficulty,          true,   false },
 250     { "getinfo",                &getinfo,                true,   false },
 251     { "getsubsidy",             &getsubsidy,             true,   false },
 252     { "getmininginfo",          &getmininginfo,          true,   false },
 253     { "scaninput",              &scaninput,              true,   true },
 254     { "getnewaddress",          &getnewaddress,          true,   false },
 255     { "getnettotals",           &getnettotals,           true,   true  },
 256     { "getaccountaddress",      &getaccountaddress,      true,   false },
 257     { "setaccount",             &setaccount,             true,   false },
 258     { "getaccount",             &getaccount,             false,  false },
 259     { "getaddressesbyaccount",  &getaddressesbyaccount,  true,   false },
 260     { "sendtoaddress",          &sendtoaddress,          false,  false },
 261     { "mergecoins",             &mergecoins,             false,  false },
 262     { "getreceivedbyaddress",   &getreceivedbyaddress,   false,  false },
 263     { "getreceivedbyaccount",   &getreceivedbyaccount,   false,  false },
 264     { "listreceivedbyaddress",  &listreceivedbyaddress,  false,  false },
 265     { "listreceivedbyaccount",  &listreceivedbyaccount,  false,  false },
 266     { "backupwallet",           &backupwallet,           true,   false },
 267     { "keypoolrefill",          &keypoolrefill,          true,   false },
 268     { "keypoolreset",           &keypoolreset,           true,   false },
 269     { "walletpassphrase",       &walletpassphrase,       true,   false },
 270     { "walletpassphrasechange", &walletpassphrasechange, false,  false },
 271     { "walletlock",             &walletlock,             true,   false },
 272     { "encryptwallet",          &encryptwallet,          false,  false },
 273     { "validateaddress",        &validateaddress,        true,   false },
 274     { "getbalance",             &getbalance,             false,  false },
 275     { "move",                   &movecmd,                false,  false },
 276     { "sendfrom",               &sendfrom,               false,  false },
 277     { "sendmany",               &sendmany,               false,  false },
 278     { "addmultisigaddress",     &addmultisigaddress,     false,  false },
 279     { "addredeemscript",        &addredeemscript,        false,  false },
 280     { "getrawmempool",          &getrawmempool,          true,   false },
 281     { "getblock",               &getblock,               false,  false },
 282     { "getblockbynumber",       &getblockbynumber,       false,  false },
 283     { "getblockhash",           &getblockhash,           false,  false },
 284     { "gettransaction",         &gettransaction,         false,  false },
 285     { "listtransactions",       &listtransactions,       false,  false },
 286     { "listaddressgroupings",   &listaddressgroupings,   false,  false },
 287     { "signmessage",            &signmessage,            false,  false },
 288     { "verifymessage",          &verifymessage,          false,  false },
 289     { "getwork",                &getwork,                true,   false },
 290     { "getworkex",              &getworkex,              true,   false },
 291     { "listaccounts",           &listaccounts,           false,  false },
 292     { "settxfee",               &settxfee,               false,  false },
 293     { "getblocktemplate",       &getblocktemplate,       true,   false },
 294     { "submitblock",            &submitblock,            false,  false },
 295     { "listsinceblock",         &listsinceblock,         false,  false },
 296     { "dumpprivkey",            &dumpprivkey,            false,  false },
 297     { "dumpwallet",             &dumpwallet,             true,   false },
 298     { "importwallet",           &importwallet,           false,  false },
 299     { "importprivkey",          &importprivkey,          false,  false },
 300     { "importaddress",          &importaddress,          false,  true  },
 301     { "removeaddress",          &removeaddress,          false,  true  },
 302     { "listunspent",            &listunspent,            false,  false },
 303     { "getrawtransaction",      &getrawtransaction,      false,  false },
 304     { "createrawtransaction",   &createrawtransaction,   false,  false },
 305     { "decoderawtransaction",   &decoderawtransaction,   false,  false },
 306     { "createmultisig",         &createmultisig,         false,  false },
 307     { "decodescript",           &decodescript,           false,  false },
 308     { "signrawtransaction",     &signrawtransaction,     false,  false },
 309     { "sendrawtransaction",     &sendrawtransaction,     false,  false },
 310     { "getcheckpoint",          &getcheckpoint,          true,   false },
 311     { "reservebalance",         &reservebalance,         false,  true},
 312     { "checkwallet",            &checkwallet,            false,  true},
 313     { "repairwallet",           &repairwallet,           false,  true},
 314     { "resendtx",               &resendtx,               false,  true},
 315     { "makekeypair",            &makekeypair,            false,  true},
 316     { "sendalert",              &sendalert,              false,  false},
 317 };
 318
 319 CRPCTable::CRPCTable()
 320 {
 321     unsigned int vcidx;
 322     for (vcidx = 0; vcidx < (sizeof(vRPCCommands) / sizeof(vRPCCommands[0])); vcidx++)
 323     {
 324         const CRPCCommand *pcmd;
 325
 326         pcmd = &vRPCCommands[vcidx];
 327         mapCommands[pcmd->name] = pcmd;
 328     }
 329 }
 330
 331 const CRPCCommand *CRPCTable::operator[](string name) const
 332 {
 333     map<string, const CRPCCommand*>::const_iterator it = mapCommands.find(name);
 334     if (it == mapCommands.end())
 335         return NULL;
 336     return (*it).second;
 337 }
 338
 339 //
 340 // HTTP protocol
 341 //
 342 // This ain't Apache.  We're just using HTTP header for the length field
 343 // and to be compatible with other JSON-RPC implementations.
 344 //
 345
 346 string HTTPPost(const string& strMsg, const map<string,string>& mapRequestHeaders)
 347 {
 348     ostringstream s;
 349     s << "POST / HTTP/1.1\r\n"
 350       << "User-Agent: novacoin-json-rpc/" << FormatFullVersion() << "\r\n"
 351       << "Host: 127.0.0.1\r\n"
 352       << "Content-Type: application/json\r\n"
 353       << "Content-Length: " << strMsg.size() << "\r\n"
 354       << "Connection: close\r\n"
 355       << "Accept: application/json\r\n";
 356     BOOST_FOREACH(const PAIRTYPE(string, string)& item, mapRequestHeaders)
 357         s << item.first << ": " << item.second << "\r\n";
 358     s << "\r\n" << strMsg;
 359
 360     return s.str();
 361 }
 362
 363 string rfc1123Time()
 364 {
 365     return DateTimeStrFormat("%a, %d %b %Y %H:%M:%S +0000", GetTime());
 366 }
 367
 368 static string HTTPReply(int nStatus, const string& strMsg, bool keepalive)
 369 {
 370     if (nStatus == HTTP_UNAUTHORIZED)
 371         return strprintf("HTTP/1.0 401 Authorization Required\r\n"
 372             "Date: %s\r\n"
 373             "Server: novacoin-json-rpc/%s\r\n"
 374             "WWW-Authenticate: Basic realm=\"jsonrpc\"\r\n"
 375             "Content-Type: text/html\r\n"
 376             "Content-Length: 296\r\n"
 377             "\r\n"
 378             "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"\r\n"
 379             "\"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd\">\r\n"
 380             "<HTML>\r\n"
 381             "<HEAD>\r\n"
 382             "<TITLE>Error</TITLE>\r\n"
 383             "<META HTTP-EQUIV='Content-Type' CONTENT='text/html; charset=ISO-8859-1'>\r\n"
 384             "</HEAD>\r\n"
 385             "<BODY><H1>401 Unauthorized.</H1></BODY>\r\n"
 386             "</HTML>\r\n", rfc1123Time().c_str(), FormatFullVersion().c_str());
 387     const char *cStatus;
 388          if (nStatus == HTTP_OK) cStatus = "OK";
 389     else if (nStatus == HTTP_BAD_REQUEST) cStatus = "Bad Request";
 390     else if (nStatus == HTTP_FORBIDDEN) cStatus = "Forbidden";
 391     else if (nStatus == HTTP_NOT_FOUND) cStatus = "Not Found";
 392     else if (nStatus == HTTP_INTERNAL_SERVER_ERROR) cStatus = "Internal Server Error";
 393     else cStatus = "";
 394     return strprintf(
 395             "HTTP/1.1 %d %s\r\n"
 396             "Date: %s\r\n"
 397             "Connection: %s\r\n"
 398             "Content-Length: %" PRIszu "\r\n"
 399             "Content-Type: application/json\r\n"
 400             "Server: novacoin-json-rpc/%s\r\n"
 401             "\r\n"
 402             "%s",
 403         nStatus,
 404         cStatus,
 405         rfc1123Time().c_str(),
 406         keepalive ? "keep-alive" : "close",
 407         strMsg.size(),
 408         FormatFullVersion().c_str(),
 409         strMsg.c_str());
 410 }
 411
 412 int ReadHTTPStatus(std::basic_istream<char>& stream, int &proto)
 413 {
 414     string str;
 415     getline(stream, str);
 416     vector<string> vWords;
 417     boost::split(vWords, str, boost::is_any_of(" "));
 418     if (vWords.size() < 2)
 419         return HTTP_INTERNAL_SERVER_ERROR;
 420     proto = 0;
 421     const char *ver = strstr(str.c_str(), "HTTP/1.");
 422     if (ver != NULL)
 423         proto = atoi(ver+7);
 424     return atoi(vWords[1].c_str());
 425 }
 426
 427 int ReadHTTPHeader(std::basic_istream<char>& stream, map<string, string>& mapHeadersRet)
 428 {
 429     int nLen = 0;
 430     while (true)
 431     {
 432         string str;
 433         std::getline(stream, str);
 434         if (str.empty() || str == "\r")
 435             break;
 436         string::size_type nColon = str.find(":");
 437         if (nColon != string::npos)
 438         {
 439             string strHeader = str.substr(0, nColon);
 440             boost::trim(strHeader);
 441             boost::to_lower(strHeader);
 442             string strValue = str.substr(nColon+1);
 443             boost::trim(strValue);
 444             mapHeadersRet[strHeader] = strValue;
 445             if (strHeader == "content-length")
 446                 nLen = atoi(strValue.c_str());
 447         }
 448     }
 449     return nLen;
 450 }
 451
 452 int ReadHTTP(std::basic_istream<char>& stream, map<string, string>& mapHeadersRet, string& strMessageRet)
 453 {
 454     mapHeadersRet.clear();
 455     strMessageRet = "";
 456
 457     // Read status
 458     int nProto = 0;
 459     int nStatus = ReadHTTPStatus(stream, nProto);
 460
 461     // Read header
 462     int nLen = ReadHTTPHeader(stream, mapHeadersRet);
 463     if (nLen < 0 || nLen > (int)MAX_SIZE)
 464         return HTTP_INTERNAL_SERVER_ERROR;
 465
 466     // Read message
 467     if (nLen > 0)
 468     {
 469         vector<char> vch(nLen);
 470         stream.read(&vch[0], nLen);
 471         strMessageRet = string(vch.begin(), vch.end());
 472     }
 473
 474     string sConHdr = mapHeadersRet["connection"];
 475
 476     if ((sConHdr != "close") && (sConHdr != "keep-alive"))
 477     {
 478         if (nProto >= 1)
 479             mapHeadersRet["connection"] = "keep-alive";
 480         else
 481             mapHeadersRet["connection"] = "close";
 482     }
 483
 484     return nStatus;
 485 }
 486
 487 bool HTTPAuthorized(map<string, string>& mapHeaders)
 488 {
 489     string strAuth = mapHeaders["authorization"];
 490     if (strAuth.substr(0,6) != "Basic ")
 491         return false;
 492     string strUserPass64 = strAuth.substr(6); boost::trim(strUserPass64);
 493     string strUserPass = DecodeBase64(strUserPass64);
 494     return TimingResistantEqual(strUserPass, strRPCUserColonPass);
 495 }
 496
 497 //
 498 // JSON-RPC protocol.  Bitcoin speaks version 1.0 for maximum compatibility,
 499 // but uses JSON-RPC 1.1/2.0 standards for parts of the 1.0 standard that were
 500 // unspecified (HTTP errors and contents of 'error').
 501 //
 502 // 1.0 spec: http://json-rpc.org/wiki/specification
 503 // 1.2 spec: http://groups.google.com/group/json-rpc/web/json-rpc-over-http
 504 // http://www.codeproject.com/KB/recipes/JSON_Spirit.aspx
 505 //
 506
 507 string JSONRPCRequest(const string& strMethod, const Array& params, const Value& id)
 508 {
 509     Object request;
 510     request.push_back(Pair("method", strMethod));
 511     request.push_back(Pair("params", params));
 512     request.push_back(Pair("id", id));
 513     return write_string(Value(request), false) + "\n";
 514 }
 515
 516 Object JSONRPCReplyObj(const Value& result, const Value& error, const Value& id)
 517 {
 518     Object reply;
 519     if (error.type() != null_type)
 520         reply.push_back(Pair("result", Value::null));
 521     else
 522         reply.push_back(Pair("result", result));
 523     reply.push_back(Pair("error", error));
 524     reply.push_back(Pair("id", id));
 525     return reply;
 526 }
 527
 528 string JSONRPCReply(const Value& result, const Value& error, const Value& id)
 529 {
 530     Object reply = JSONRPCReplyObj(result, error, id);
 531     return write_string(Value(reply), false) + "\n";
 532 }
 533
 534 void ErrorReply(std::ostream& stream, const Object& objError, const Value& id)
 535 {
 536     // Send error reply from json-rpc error object
 537     int nStatus = HTTP_INTERNAL_SERVER_ERROR;
 538     int code = find_value(objError, "code").get_int();
 539     if (code == RPC_INVALID_REQUEST) nStatus = HTTP_BAD_REQUEST;
 540     else if (code == RPC_METHOD_NOT_FOUND) nStatus = HTTP_NOT_FOUND;
 541     string strReply = JSONRPCReply(Value::null, objError, id);
 542     stream << HTTPReply(nStatus, strReply, false) << std::flush;
 543 }
 544
 545 bool ClientAllowed(const boost::asio::ip::address& address)
 546 {
 547     // Make sure that IPv4-compatible and IPv4-mapped IPv6 addresses are treated as IPv4 addresses
 548     if (address.is_v6()
 549      && (address.to_v6().is_v4_compatible()
 550       || address.to_v6().is_v4_mapped()))
 551         return ClientAllowed(address.to_v6().to_v4());
 552
 553     if (address == asio::ip::address_v4::loopback()
 554      || address == asio::ip::address_v6::loopback()
 555      || (address.is_v4()
 556          // Check whether IPv4 addresses match 127.0.0.0/8 (loopback subnet)
 557       && (address.to_v4().to_ulong() & 0xff000000) == 0x7f000000))
 558         return true;
 559
 560     const string strAddress = address.to_string();
 561     const vector<string>& vAllow = mapMultiArgs["-rpcallowip"];
 562     BOOST_FOREACH(string strAllow, vAllow)
 563         if (WildcardMatch(strAddress, strAllow))
 564             return true;
 565     return false;
 566 }
 567
 568 //
 569 // IOStream device that speaks SSL but can also speak non-SSL
 570 //
 571 template <typename Protocol>
 572 class SSLIOStreamDevice : public iostreams::device<iostreams::bidirectional> {
 573 public:
 574     SSLIOStreamDevice(asio::ssl::stream<typename Protocol::socket> &streamIn, bool fUseSSLIn) : stream(streamIn)
 575     {
 576         fUseSSL = fUseSSLIn;
 577         fNeedHandshake = fUseSSLIn;
 578     }
 579
 580     void handshake(ssl::stream_base::handshake_type role)
 581     {
 582         if (!fNeedHandshake) return;
 583         fNeedHandshake = false;
 584         stream.handshake(role);
 585     }
 586     std::streamsize read(char* s, std::streamsize n)
 587     {
 588         handshake(ssl::stream_base::server); // HTTPS servers read first
 589         if (fUseSSL) return stream.read_some(asio::buffer(s, n));
 590         return stream.next_layer().read_some(asio::buffer(s, n));
 591     }
 592     std::streamsize write(const char* s, std::streamsize n)
 593     {
 594         handshake(ssl::stream_base::client); // HTTPS clients write first
 595         if (fUseSSL) return asio::write(stream, asio::buffer(s, n));
 596         return asio::write(stream.next_layer(), asio::buffer(s, n));
 597     }
 598     bool connect(const std::string& server, const std::string& port)
 599     {
 600         ip::tcp::resolver resolver(stream.get_io_service());
 601         ip::tcp::resolver::query query(server.c_str(), port.c_str());
 602         ip::tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);
 603         ip::tcp::resolver::iterator end;
 604         boost::system::error_code error = asio::error::host_not_found;
 605         while (error && endpoint_iterator != end)
 606         {
 607             stream.lowest_layer().close();
 608             stream.lowest_layer().connect(*endpoint_iterator++, error);
 609         }
 610         if (error)
 611             return false;
 612         return true;
 613     }
 614
 615 private:
 616     bool fNeedHandshake;
 617     bool fUseSSL;
 618     asio::ssl::stream<typename Protocol::socket>& stream;
 619 };
 620
 621 class AcceptedConnection
 622 {
 623 public:
 624     virtual ~AcceptedConnection() {}
 625
 626     virtual std::iostream& stream() = 0;
 627     virtual std::string peer_address_to_string() const = 0;
 628     virtual void close() = 0;
 629 };
 630
 631 template <typename Protocol>
 632 class AcceptedConnectionImpl : public AcceptedConnection
 633 {
 634 public:
 635     AcceptedConnectionImpl(
 636             asio::io_service& io_service,
 637             ssl::context &context,
 638             bool fUseSSL) :
 639         sslStream(io_service, context),
 640         _d(sslStream, fUseSSL),
 641         _stream(_d)
 642     {
 643     }
 644
 645     virtual std::iostream& stream()
 646     {
 647         return _stream;
 648     }
 649
 650     virtual std::string peer_address_to_string() const
 651     {
 652         return peer.address().to_string();
 653     }
 654
 655     virtual void close()
 656     {
 657         _stream.close();
 658     }
 659
 660     typename Protocol::endpoint peer;
 661     asio::ssl::stream<typename Protocol::socket> sslStream;
 662
 663 private:
 664     SSLIOStreamDevice<Protocol> _d;
 665     iostreams::stream< SSLIOStreamDevice<Protocol> > _stream;
 666 };
 667
 668 void ThreadRPCServer(void* parg)
 669 {
 670     // Make this thread recognisable as the RPC listener
 671     RenameThread("novacoin-rpclist");
 672
 673     try
 674     {
 675         vnThreadsRunning[THREAD_RPCLISTENER]++;
 676         ThreadRPCServer2(parg);
 677         vnThreadsRunning[THREAD_RPCLISTENER]--;
 678     }
 679     catch (std::exception& e) {
 680         vnThreadsRunning[THREAD_RPCLISTENER]--;
 681         PrintException(&e, "ThreadRPCServer()");
 682     } catch (...) {
 683         vnThreadsRunning[THREAD_RPCLISTENER]--;
 684         PrintException(NULL, "ThreadRPCServer()");
 685     }
 686     printf("ThreadRPCServer exited\n");
 687 }
 688
 689 // Forward declaration required for RPCListen
 690 template <typename Protocol, typename SocketAcceptorService>
 691 static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
 692                              ssl::context& context,
 693                              bool fUseSSL,
 694                              AcceptedConnection* conn,
 695                              const boost::system::error_code& error);
 696
 697 /**
 698  * Sets up I/O resources to accept and handle a new connection.
 699  */
 700 template <typename Protocol, typename SocketAcceptorService>
 701 static void RPCListen(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
 702                    ssl::context& context,
 703                    const bool fUseSSL)
 704 {
 705     // Accept connection
 706     AcceptedConnectionImpl<Protocol>* conn = new AcceptedConnectionImpl<Protocol>(acceptor->get_io_service(), context, fUseSSL);
 707
 708     acceptor->async_accept(
 709             conn->sslStream.lowest_layer(),
 710             conn->peer,
 711             boost::bind(&RPCAcceptHandler<Protocol, SocketAcceptorService>,
 712                 acceptor,
 713                 boost::ref(context),
 714                 fUseSSL,
 715                 conn,
 716                 boost::asio::placeholders::error));
 717 }
 718
 719 /**
 720  * Accept and handle incoming connection.
 721  */
 722 template <typename Protocol, typename SocketAcceptorService>
 723 static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
 724                              ssl::context& context,
 725                              const bool fUseSSL,
 726                              AcceptedConnection* conn,
 727                              const boost::system::error_code& error)
 728 {
 729     vnThreadsRunning[THREAD_RPCLISTENER]++;
 730
 731     // Immediately start accepting new connections, except when we're cancelled or our socket is closed.
 732     if (error != asio::error::operation_aborted
 733      && acceptor->is_open())
 734         RPCListen(acceptor, context, fUseSSL);
 735
 736     AcceptedConnectionImpl<ip::tcp>* tcp_conn = dynamic_cast< AcceptedConnectionImpl<ip::tcp>* >(conn);
 737
 738     // TODO: Actually handle errors
 739     if (error)
 740     {
 741         delete conn;
 742     }
 743
 744     // Restrict callers by IP.  It is important to
 745     // do this before starting client thread, to filter out
 746     // certain DoS and misbehaving clients.
 747     else if (tcp_conn
 748           && !ClientAllowed(tcp_conn->peer.address()))
 749     {
 750         // Only send a 403 if we're not using SSL to prevent a DoS during the SSL handshake.
 751         if (!fUseSSL)
 752             conn->stream() << HTTPReply(HTTP_FORBIDDEN, "", false) << std::flush;
 753         delete conn;
 754     }
 755
 756     // start HTTP client thread
 757     else if (!NewThread(ThreadRPCServer3, conn)) {
 758         printf("Failed to create RPC server client thread\n");
 759         delete conn;
 760     }
 761
 762     vnThreadsRunning[THREAD_RPCLISTENER]--;
 763 }
 764
 765 void ThreadRPCServer2(void* parg)
 766 {
 767     printf("ThreadRPCServer started\n");
 768
 769     strRPCUserColonPass = mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"];
 770     if (mapArgs["-rpcpassword"] == "")
 771     {
 772         unsigned char rand_pwd[32];
 773         RAND_bytes(rand_pwd, 32);
 774         string strWhatAmI = "To use novacoind";
 775         if (mapArgs.count("-server"))
 776             strWhatAmI = strprintf(_("To use the %s option"), "\"-server\"");
 777         else if (mapArgs.count("-daemon"))
 778             strWhatAmI = strprintf(_("To use the %s option"), "\"-daemon\"");
 779         uiInterface.ThreadSafeMessageBox(strprintf(
 780             _("%s, you must set a rpcpassword in the configuration file:\n %s\n"
 781               "It is recommended you use the following random password:\n"
 782               "rpcuser=novacoinrpc\n"
 783               "rpcpassword=%s\n"
 784               "(you do not need to remember this password)\n"
 785               "If the file does not exist, create it with owner-readable-only file permissions.\n"),
 786                 strWhatAmI.c_str(),
 787                 GetConfigFile().string().c_str(),
 788                 EncodeBase58(&rand_pwd[0],&rand_pwd[0]+32).c_str()),
 789             _("Error"), CClientUIInterface::OK | CClientUIInterface::MODAL);
 790         StartShutdown();
 791         return;
 792     }
 793
 794     const bool fUseSSL = GetBoolArg("-rpcssl");
 795
 796     asio::io_service io_service;
 797
 798     ssl::context context(io_service, ssl::context::sslv23);
 799     if (fUseSSL)
 800     {
 801         context.set_options(ssl::context::no_sslv2);
 802
 803         filesystem::path pathCertFile(GetArg("-rpcsslcertificatechainfile", "server.cert"));
 804         if (!pathCertFile.is_complete()) pathCertFile = filesystem::path(GetDataDir()) / pathCertFile;
 805         if (filesystem::exists(pathCertFile)) context.use_certificate_chain_file(pathCertFile.string());
 806         else printf("ThreadRPCServer ERROR: missing server certificate file %s\n", pathCertFile.string().c_str());
 807
 808         filesystem::path pathPKFile(GetArg("-rpcsslprivatekeyfile", "server.pem"));
 809         if (!pathPKFile.is_complete()) pathPKFile = filesystem::path(GetDataDir()) / pathPKFile;
 810         if (filesystem::exists(pathPKFile)) context.use_private_key_file(pathPKFile.string(), ssl::context::pem);
 811         else printf("ThreadRPCServer ERROR: missing server private key file %s\n", pathPKFile.string().c_str());
 812
 813         string strCiphers = GetArg("-rpcsslciphers", "TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!AH:!3DES:@STRENGTH");
 814         SSL_CTX_set_cipher_list(context.impl(), strCiphers.c_str());
 815     }
 816
 817     // Try a dual IPv6/IPv4 socket, falling back to separate IPv4 and IPv6 sockets
 818     const bool loopback = !mapArgs.count("-rpcallowip");
 819     asio::ip::address bindAddress = loopback ? asio::ip::address_v6::loopback() : asio::ip::address_v6::any();
 820     ip::tcp::endpoint endpoint(bindAddress, GetArg("-rpcport", GetDefaultRPCPort()));
 821     boost::system::error_code v6_only_error;
 822     boost::shared_ptr<ip::tcp::acceptor> acceptor(new ip::tcp::acceptor(io_service));
 823
 824     boost::signals2::signal<void ()> StopRequests;
 825
 826     bool fListening = false;
 827     std::string strerr;
 828     try
 829     {
 830         acceptor->open(endpoint.protocol());
 831         acceptor->set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
 832
 833         // Try making the socket dual IPv6/IPv4 (if listening on the "any" address)
 834         acceptor->set_option(boost::asio::ip::v6_only(loopback), v6_only_error);
 835
 836         acceptor->bind(endpoint);
 837         acceptor->listen(socket_base::max_connections);
 838
 839         RPCListen(acceptor, context, fUseSSL);
 840         // Cancel outstanding listen-requests for this acceptor when shutting down
 841         StopRequests.connect(signals2::slot<void ()>(
 842                     static_cast<void (ip::tcp::acceptor::*)()>(&ip::tcp::acceptor::close), acceptor.get())
 843                 .track(acceptor));
 844
 845         fListening = true;
 846     }
 847     catch(boost::system::system_error &e)
 848     {
 849         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());
 850     }
 851
 852     try {
 853         // If dual IPv6/IPv4 failed (or we're opening loopback interfaces only), open IPv4 separately
 854         if (!fListening || loopback || v6_only_error)
 855         {
 856             bindAddress = loopback ? asio::ip::address_v4::loopback() : asio::ip::address_v4::any();
 857             endpoint.address(bindAddress);
 858
 859             acceptor.reset(new ip::tcp::acceptor(io_service));
 860             acceptor->open(endpoint.protocol());
 861             acceptor->set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
 862             acceptor->bind(endpoint);
 863             acceptor->listen(socket_base::max_connections);
 864
 865             RPCListen(acceptor, context, fUseSSL);
 866             // Cancel outstanding listen-requests for this acceptor when shutting down
 867             StopRequests.connect(signals2::slot<void ()>(
 868                         static_cast<void (ip::tcp::acceptor::*)()>(&ip::tcp::acceptor::close), acceptor.get())
 869                     .track(acceptor));
 870
 871             fListening = true;
 872         }
 873     }
 874     catch(boost::system::system_error &e)
 875     {
 876         strerr = strprintf(_("An error occurred while setting up the RPC port %u for listening on IPv4: %s"), endpoint.port(), e.what());
 877     }
 878
 879     if (!fListening) {
 880         uiInterface.ThreadSafeMessageBox(strerr, _("Error"), CClientUIInterface::OK | CClientUIInterface::MODAL);
 881         StartShutdown();
 882         return;
 883     }
 884
 885     vnThreadsRunning[THREAD_RPCLISTENER]--;
 886     while (!fShutdown)
 887         io_service.run_one();
 888     vnThreadsRunning[THREAD_RPCLISTENER]++;
 889     StopRequests();
 890 }
 891
 892 class JSONRequest
 893 {
 894 public:
 895     Value id;
 896     string strMethod;
 897     Array params;
 898
 899     JSONRequest() { id = Value::null; }
 900     void parse(const Value& valRequest);
 901 };
 902
 903 void JSONRequest::parse(const Value& valRequest)
 904 {
 905     // Parse request
 906     if (valRequest.type() != obj_type)
 907         throw JSONRPCError(RPC_INVALID_REQUEST, "Invalid Request object");
 908     const Object& request = valRequest.get_obj();
 909
 910     // Parse id now so errors from here on will have the id
 911     id = find_value(request, "id");
 912
 913     // Parse method
 914     Value valMethod = find_value(request, "method");
 915     if (valMethod.type() == null_type)
 916         throw JSONRPCError(RPC_INVALID_REQUEST, "Missing method");
 917     if (valMethod.type() != str_type)
 918         throw JSONRPCError(RPC_INVALID_REQUEST, "Method must be a string");
 919     strMethod = valMethod.get_str();
 920     if (strMethod != "getwork" && strMethod != "getblocktemplate")
 921         printf("ThreadRPCServer method=%s\n", strMethod.c_str());
 922
 923     // Parse params
 924     Value valParams = find_value(request, "params");
 925     if (valParams.type() == array_type)
 926         params = valParams.get_array();
 927     else if (valParams.type() == null_type)
 928         params = Array();
 929     else
 930         throw JSONRPCError(RPC_INVALID_REQUEST, "Params must be an array");
 931 }
 932
 933 static Object JSONRPCExecOne(const Value& req)
 934 {
 935     Object rpc_result;
 936
 937     JSONRequest jreq;
 938     try {
 939         jreq.parse(req);
 940
 941         Value result = tableRPC.execute(jreq.strMethod, jreq.params);
 942         rpc_result = JSONRPCReplyObj(result, Value::null, jreq.id);
 943     }
 944     catch (Object& objError)
 945     {
 946         rpc_result = JSONRPCReplyObj(Value::null, objError, jreq.id);
 947     }
 948     catch (std::exception& e)
 949     {
 950         rpc_result = JSONRPCReplyObj(Value::null,
 951                                      JSONRPCError(RPC_PARSE_ERROR, e.what()), jreq.id);
 952     }
 953
 954     return rpc_result;
 955 }
 956
 957 static string JSONRPCExecBatch(const Array& vReq)
 958 {
 959     Array ret;
 960     for (unsigned int reqIdx = 0; reqIdx < vReq.size(); reqIdx++)
 961         ret.push_back(JSONRPCExecOne(vReq[reqIdx]));
 962
 963     return write_string(Value(ret), false) + "\n";
 964 }
 965
 966 static CCriticalSection cs_THREAD_RPCHANDLER;
 967
 968 void ThreadRPCServer3(void* parg)
 969 {
 970     // Make this thread recognisable as the RPC handler
 971     RenameThread("novacoin-rpchand");
 972
 973     {
 974         LOCK(cs_THREAD_RPCHANDLER);
 975         vnThreadsRunning[THREAD_RPCHANDLER]++;
 976     }
 977     AcceptedConnection *conn = (AcceptedConnection *) parg;
 978
 979     bool fRun = true;
 980     while (true)
 981     {
 982         if (fShutdown || !fRun)
 983         {
 984             conn->close();
 985             delete conn;
 986             {
 987                 LOCK(cs_THREAD_RPCHANDLER);
 988                 --vnThreadsRunning[THREAD_RPCHANDLER];
 989             }
 990             return;
 991         }
 992         map<string, string> mapHeaders;
 993         string strRequest;
 994
 995         ReadHTTP(conn->stream(), mapHeaders, strRequest);
 996
 997         // Check authorization
 998         if (mapHeaders.count("authorization") == 0)
 999         {
1000             conn->stream() << HTTPReply(HTTP_UNAUTHORIZED, "", false) << std::flush;
1001             break;
1002         }
1003         if (!HTTPAuthorized(mapHeaders))
1004         {
1005             printf("ThreadRPCServer incorrect password attempt from %s\n", conn->peer_address_to_string().c_str());
1006             /* Deter brute-forcing short passwords.
1007                If this results in a DOS the user really
1008                shouldn't have their RPC port exposed.*/
1009             if (mapArgs["-rpcpassword"].size() < 20)
1010                 Sleep(250);
1011
1012             conn->stream() << HTTPReply(HTTP_UNAUTHORIZED, "", false) << std::flush;
1013             break;
1014         }
1015         if (mapHeaders["connection"] == "close")
1016             fRun = false;
1017
1018         JSONRequest jreq;
1019         try
1020         {
1021             // Parse request
1022             Value valRequest;
1023             if (!read_string(strRequest, valRequest))
1024                 throw JSONRPCError(RPC_PARSE_ERROR, "Parse error");
1025
1026             string strReply;
1027
1028             // singleton request
1029             if (valRequest.type() == obj_type) {
1030                 jreq.parse(valRequest);
1031
1032                 Value result = tableRPC.execute(jreq.strMethod, jreq.params);
1033
1034                 // Send reply
1035                 strReply = JSONRPCReply(result, Value::null, jreq.id);
1036
1037             // array of requests
1038             } else if (valRequest.type() == array_type)
1039                 strReply = JSONRPCExecBatch(valRequest.get_array());
1040             else
1041                 throw JSONRPCError(RPC_PARSE_ERROR, "Top-level object parse error");
1042
1043             conn->stream() << HTTPReply(HTTP_OK, strReply, fRun) << std::flush;
1044         }
1045         catch (Object& objError)
1046         {
1047             ErrorReply(conn->stream(), objError, jreq.id);
1048             break;
1049         }
1050         catch (std::exception& e)
1051         {
1052             ErrorReply(conn->stream(), JSONRPCError(RPC_PARSE_ERROR, e.what()), jreq.id);
1053             break;
1054         }
1055     }
1056
1057     delete conn;
1058     {
1059         LOCK(cs_THREAD_RPCHANDLER);
1060         vnThreadsRunning[THREAD_RPCHANDLER]--;
1061     }
1062 }
1063
1064 json_spirit::Value CRPCTable::execute(const std::string &strMethod, const json_spirit::Array &params) const
1065 {
1066     // Find method
1067     const CRPCCommand *pcmd = tableRPC[strMethod];
1068     if (!pcmd)
1069         throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found");
1070
1071     // Observe safe mode
1072     string strWarning = GetWarnings("rpc");
1073     if (strWarning != "" && !GetBoolArg("-disablesafemode") &&
1074         !pcmd->okSafeMode)
1075         throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE, string("Safe mode: ") + strWarning);
1076
1077     try
1078     {
1079         // Execute
1080         Value result;
1081         {
1082             if (pcmd->unlocked)
1083                 result = pcmd->actor(params, false);
1084             else {
1085                 LOCK2(cs_main, pwalletMain->cs_wallet);
1086                 result = pcmd->actor(params, false);
1087             }
1088         }
1089         return result;
1090     }
1091     catch (std::exception& e)
1092     {
1093         throw JSONRPCError(RPC_MISC_ERROR, e.what());
1094     }
1095 }
1096
1097
1098 Object CallRPC(const string& strMethod, const Array& params)
1099 {
1100     if (mapArgs["-rpcuser"] == "" && mapArgs["-rpcpassword"] == "")
1101         throw runtime_error(strprintf(
1102             _("You must set rpcpassword=<password> in the configuration file:\n%s\n"
1103               "If the file does not exist, create it with owner-readable-only file permissions."),
1104                 GetConfigFile().string().c_str()));
1105
1106     // Connect to localhost
1107     bool fUseSSL = GetBoolArg("-rpcssl");
1108     asio::io_service io_service;
1109     ssl::context context(io_service, ssl::context::sslv23);
1110     context.set_options(ssl::context::no_sslv2);
1111     asio::ssl::stream<asio::ip::tcp::socket> sslStream(io_service, context);
1112     SSLIOStreamDevice<asio::ip::tcp> d(sslStream, fUseSSL);
1113     iostreams::stream< SSLIOStreamDevice<asio::ip::tcp> > stream(d);
1114     if (!d.connect(GetArg("-rpcconnect", "127.0.0.1"), GetArg("-rpcport", itostr(GetDefaultRPCPort()))))
1115         throw runtime_error("couldn't connect to server");
1116
1117     // HTTP basic authentication
1118     string strUserPass64 = EncodeBase64(mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"]);
1119     map<string, string> mapRequestHeaders;
1120     mapRequestHeaders["Authorization"] = string("Basic ") + strUserPass64;
1121
1122     // Send request
1123     string strRequest = JSONRPCRequest(strMethod, params, 1);
1124     string strPost = HTTPPost(strRequest, mapRequestHeaders);
1125     stream << strPost << std::flush;
1126
1127     // Receive reply
1128     map<string, string> mapHeaders;
1129     string strReply;
1130     int nStatus = ReadHTTP(stream, mapHeaders, strReply);
1131     if (nStatus == HTTP_UNAUTHORIZED)
1132         throw runtime_error("incorrect rpcuser or rpcpassword (authorization failed)");
1133     else if (nStatus >= 400 && nStatus != HTTP_BAD_REQUEST && nStatus != HTTP_NOT_FOUND && nStatus != HTTP_INTERNAL_SERVER_ERROR)
1134         throw runtime_error(strprintf("server returned HTTP error %d", nStatus));
1135     else if (strReply.empty())
1136         throw runtime_error("no response from server");
1137
1138     // Parse reply
1139     Value valReply;
1140     if (!read_string(strReply, valReply))
1141         throw runtime_error("couldn't parse reply from server");
1142     const Object& reply = valReply.get_obj();
1143     if (reply.empty())
1144         throw runtime_error("expected reply to have result, error and id properties");
1145
1146     return reply;
1147 }
1148
1149
1150
1151
1152 template<typename T>
1153 void ConvertTo(Value& value, bool fAllowNull=false)
1154 {
1155     if (fAllowNull && value.type() == null_type)
1156         return;
1157     if (value.type() == str_type)
1158     {
1159         // reinterpret string as unquoted json value
1160         Value value2;
1161         string strJSON = value.get_str();
1162         if (!read_string(strJSON, value2))
1163             throw runtime_error(string("Error parsing JSON:")+strJSON);
1164         ConvertTo<T>(value2, fAllowNull);
1165         value = value2;
1166     }
1167     else
1168     {
1169         value = value.get_value<T>();
1170     }
1171 }
1172
1173 // Convert strings to command-specific RPC representation
1174 Array RPCConvertValues(const std::string &strMethod, const std::vector<std::string> &strParams)
1175 {
1176     Array params;
1177     BOOST_FOREACH(const std::string &param, strParams)
1178         params.push_back(param);
1179
1180     int n = params.size();
1181
1182     //
1183     // Special case non-string parameter types
1184     //
1185     if (strMethod == "stop"                   && n > 0) ConvertTo<bool>(params[0]);
1186     if (strMethod == "getaddednodeinfo"       && n > 0) ConvertTo<bool>(params[0]);
1187     if (strMethod == "sendtoaddress"          && n > 1) ConvertTo<double>(params[1]);
1188     if (strMethod == "mergecoins"            && n > 0) ConvertTo<double>(params[0]);
1189     if (strMethod == "mergecoins"            && n > 1) ConvertTo<double>(params[1]);
1190     if (strMethod == "mergecoins"            && n > 2) ConvertTo<double>(params[2]);
1191     if (strMethod == "settxfee"               && n > 0) ConvertTo<double>(params[0]);
1192     if (strMethod == "getreceivedbyaddress"   && n > 1) ConvertTo<boost::int64_t>(params[1]);
1193     if (strMethod == "getreceivedbyaccount"   && n > 1) ConvertTo<boost::int64_t>(params[1]);
1194     if (strMethod == "listreceivedbyaddress"  && n > 0) ConvertTo<boost::int64_t>(params[0]);
1195     if (strMethod == "listreceivedbyaddress"  && n > 1) ConvertTo<bool>(params[1]);
1196     if (strMethod == "listreceivedbyaccount"  && n > 0) ConvertTo<boost::int64_t>(params[0]);
1197     if (strMethod == "listreceivedbyaccount"  && n > 1) ConvertTo<bool>(params[1]);
1198     if (strMethod == "getbalance"             && n > 1) ConvertTo<boost::int64_t>(params[1]);
1199     if (strMethod == "getblock"               && n > 1) ConvertTo<bool>(params[1]);
1200     if (strMethod == "getblockbynumber"       && n > 0) ConvertTo<boost::int64_t>(params[0]);
1201     if (strMethod == "getblockbynumber"       && n > 1) ConvertTo<bool>(params[1]);
1202     if (strMethod == "getblockhash"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
1203     if (strMethod == "move"                   && n > 2) ConvertTo<double>(params[2]);
1204     if (strMethod == "move"                   && n > 3) ConvertTo<boost::int64_t>(params[3]);
1205     if (strMethod == "sendfrom"               && n > 2) ConvertTo<double>(params[2]);
1206     if (strMethod == "sendfrom"               && n > 3) ConvertTo<boost::int64_t>(params[3]);
1207     if (strMethod == "listtransactions"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
1208     if (strMethod == "listtransactions"       && n > 2) ConvertTo<boost::int64_t>(params[2]);
1209     if (strMethod == "listaccounts"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
1210     if (strMethod == "walletpassphrase"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
1211     if (strMethod == "walletpassphrase"       && n > 2) ConvertTo<bool>(params[2]);
1212     if (strMethod == "getblocktemplate"       && n > 0) ConvertTo<Object>(params[0]);
1213     if (strMethod == "listsinceblock"         && n > 1) ConvertTo<boost::int64_t>(params[1]);
1214
1215     if (strMethod == "scaninput"              && n > 1) ConvertTo<int>(params[1]);
1216     if (strMethod == "scaninput"              && n > 2) ConvertTo<double>(params[2]);
1217     if (strMethod == "scaninput"              && n > 3) ConvertTo<int>(params[3]);
1218
1219     if (strMethod == "sendalert"              && n > 2) ConvertTo<boost::int64_t>(params[2]);
1220     if (strMethod == "sendalert"              && n > 3) ConvertTo<boost::int64_t>(params[3]);
1221     if (strMethod == "sendalert"              && n > 4) ConvertTo<boost::int64_t>(params[4]);
1222     if (strMethod == "sendalert"              && n > 5) ConvertTo<boost::int64_t>(params[5]);
1223     if (strMethod == "sendalert"              && n > 6) ConvertTo<boost::int64_t>(params[6]);
1224
1225     if (strMethod == "sendmany"               && n > 1) ConvertTo<Object>(params[1]);
1226     if (strMethod == "sendmany"               && n > 2) ConvertTo<boost::int64_t>(params[2]);
1227     if (strMethod == "reservebalance"         && n > 0) ConvertTo<bool>(params[0]);
1228     if (strMethod == "reservebalance"         && n > 1) ConvertTo<double>(params[1]);
1229     if (strMethod == "addmultisigaddress"     && n > 0) ConvertTo<boost::int64_t>(params[0]);
1230     if (strMethod == "addmultisigaddress"     && n > 1) ConvertTo<Array>(params[1]);
1231     if (strMethod == "listunspent"            && n > 0) ConvertTo<boost::int64_t>(params[0]);
1232     if (strMethod == "listunspent"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
1233     if (strMethod == "listunspent"            && n > 2) ConvertTo<Array>(params[2]);
1234     if (strMethod == "getrawtransaction"      && n > 1) ConvertTo<boost::int64_t>(params[1]);
1235     if (strMethod == "createrawtransaction"   && n > 0) ConvertTo<Array>(params[0]);
1236     if (strMethod == "createrawtransaction"   && n > 1) ConvertTo<Object>(params[1]);
1237     if (strMethod == "createmultisig"         && n > 0) ConvertTo<boost::int64_t>(params[0]);
1238     if (strMethod == "createmultisig"         && n > 1) ConvertTo<Array>(params[1]);
1239     if (strMethod == "signrawtransaction"     && n > 1) ConvertTo<Array>(params[1], true);
1240     if (strMethod == "signrawtransaction"     && n > 2) ConvertTo<Array>(params[2], true);
1241     if (strMethod == "keypoolrefill"          && n > 0) ConvertTo<boost::int64_t>(params[0]);
1242     if (strMethod == "keypoolreset"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
1243     if (strMethod == "importaddress"          && n > 2) ConvertTo<bool>(params[2]);
1244
1245     return params;
1246 }
1247
1248 int CommandLineRPC(int argc, char *argv[])
1249 {
1250     string strPrint;
1251     int nRet = 0;
1252     try
1253     {
1254         // Skip switches
1255         while (argc > 1 && IsSwitchChar(argv[1][0]))
1256         {
1257             argc--;
1258             argv++;
1259         }
1260
1261         // Method
1262         if (argc < 2)
1263             throw runtime_error("too few parameters");
1264         string strMethod = argv[1];
1265
1266         // Parameters default to strings
1267         std::vector<std::string> strParams(&argv[2], &argv[argc]);
1268         Array params = RPCConvertValues(strMethod, strParams);
1269
1270         // Execute
1271         Object reply = CallRPC(strMethod, params);
1272
1273         // Parse reply
1274         const Value& result = find_value(reply, "result");
1275         const Value& error  = find_value(reply, "error");
1276
1277         if (error.type() != null_type)
1278         {
1279             // Error
1280             strPrint = "error: " + write_string(error, false);
1281             int code = find_value(error.get_obj(), "code").get_int();
1282             nRet = abs(code);
1283         }
1284         else
1285         {
1286             // Result
1287             if (result.type() == null_type)
1288                 strPrint = "";
1289             else if (result.type() == str_type)
1290                 strPrint = result.get_str();
1291             else
1292                 strPrint = write_string(result, true);
1293         }
1294     }
1295     catch (std::exception& e)
1296     {
1297         strPrint = string("error: ") + e.what();
1298         nRet = 87;
1299     }
1300     catch (...)
1301     {
1302         PrintException(NULL, "CommandLineRPC()");
1303     }
1304
1305     if (strPrint != "")
1306     {
1307         fprintf((nRet == 0 ? stdout : stderr), "%s\n", strPrint.c_str());
1308     }
1309     return nRet;
1310 }
1311
1312
1313
1314
1315 #ifdef TEST
1316 int main(int argc, char *argv[])
1317 {
1318 #ifdef _MSC_VER
1319     // Turn off Microsoft heap dump noise
1320     _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE);
1321     _CrtSetReportFile(_CRT_WARN, CreateFile("NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0));
1322 #endif
1323     setbuf(stdin, NULL);
1324     setbuf(stdout, NULL);
1325     setbuf(stderr, NULL);
1326
1327     try
1328     {
1329         if (argc >= 2 && string(argv[1]) == "-server")
1330         {
1331             printf("server ready\n");
1332             ThreadRPCServer(NULL);
1333         }
1334         else
1335         {
1336             return CommandLineRPC(argc, argv);
1337         }
1338     }
1339     catch (std::exception& e) {
1340         PrintException(&e, "main()");
1341     } catch (...) {
1342         PrintException(NULL, "main()");
1343     }
1344     return 0;
1345 }
1346 #endif
1347
1348 const CRPCTable tableRPC;