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     { "getblockcount",          &getblockcount,          true,   false },
 207     { "getconnectioncount",     &getconnectioncount,     true,   false },
 208     { "getpeerinfo",            &getpeerinfo,            true,   false },
 209     { "getdifficulty",          &getdifficulty,          true,   false },
 210     { "getgenerate",            &getgenerate,            true,   false },
 211     { "setgenerate",            &setgenerate,            true,   false },
 212     { "gethashespersec",        &gethashespersec,        true,   false },
 213     { "getinfo",                &getinfo,                true,   false },
 214     { "getmininginfo",          &getmininginfo,          true,   false },
 215     { "getnewaddress",          &getnewaddress,          true,   false },
 216     { "getaccountaddress",      &getaccountaddress,      true,   false },
 217     { "setaccount",             &setaccount,             true,   false },
 218     { "getaccount",             &getaccount,             false,  false },
 219     { "getaddressesbyaccount",  &getaddressesbyaccount,  true,   false },
 220     { "sendtoaddress",          &sendtoaddress,          false,  false },
 221     { "getreceivedbyaddress",   &getreceivedbyaddress,   false,  false },
 222     { "getreceivedbyaccount",   &getreceivedbyaccount,   false,  false },
 223     { "listreceivedbyaddress",  &listreceivedbyaddress,  false,  false },
 224     { "listreceivedbyaccount",  &listreceivedbyaccount,  false,  false },
 225     { "backupwallet",           &backupwallet,           true,   false },
 226     { "keypoolrefill",          &keypoolrefill,          true,   false },
 227     { "walletpassphrase",       &walletpassphrase,       true,   false },
 228     { "walletpassphrasechange", &walletpassphrasechange, false,  false },
 229     { "walletlock",             &walletlock,             true,   false },
 230     { "encryptwallet",          &encryptwallet,          false,  false },
 231     { "validateaddress",        &validateaddress,        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     { "listaccounts",           &listaccounts,           false,  false },
 248     { "settxfee",               &settxfee,               false,  false },
 249     { "getblocktemplate",       &getblocktemplate,       true,   false },
 250     { "submitblock",            &submitblock,            false,  false },
 251     { "listsinceblock",         &listsinceblock,         false,  false },
 252     { "dumpprivkey",            &dumpprivkey,            false,  false },
 253     { "importprivkey",          &importprivkey,          false,  false },
 254     { "listunspent",            &listunspent,            false,  false },
 255     { "getrawtransaction",      &getrawtransaction,      false,  false },
 256     { "createrawtransaction",   &createrawtransaction,   false,  false },
 257     { "decoderawtransaction",   &decoderawtransaction,   false,  false },
 258     { "signrawtransaction",     &signrawtransaction,     false,  false },
 259     { "sendrawtransaction",     &sendrawtransaction,     false,  false },
 260     { "getcheckpoint",          &getcheckpoint,          true,   false },
 261     { "reservebalance",         &reservebalance,         false,  true},
 262     { "checkwallet",            &checkwallet,            false,  true},
 263     { "repairwallet",           &repairwallet,           false,  true},
 264     { "resendtx",               &resendtx,               false,  true},
 265     { "makekeypair",            &makekeypair,            false,  true},
 266     { "sendalert",              &sendalert,              false,  false},
 267 };
 268
 269 CRPCTable::CRPCTable()
 270 {
 271     unsigned int vcidx;
 272     for (vcidx = 0; vcidx < (sizeof(vRPCCommands) / sizeof(vRPCCommands[0])); vcidx++)
 273     {
 274         const CRPCCommand *pcmd;
 275
 276         pcmd = &vRPCCommands[vcidx];
 277         mapCommands[pcmd->name] = pcmd;
 278     }
 279 }
 280
 281 const CRPCCommand *CRPCTable::operator[](string name) const
 282 {
 283     map<string, const CRPCCommand*>::const_iterator it = mapCommands.find(name);
 284     if (it == mapCommands.end())
 285         return NULL;
 286     return (*it).second;
 287 }
 288
 289 //
 290 // HTTP protocol
 291 //
 292 // This ain't Apache.  We're just using HTTP header for the length field
 293 // and to be compatible with other JSON-RPC implementations.
 294 //
 295
 296 string HTTPPost(const string& strMsg, const map<string,string>& mapRequestHeaders)
 297 {
 298     ostringstream s;
 299     s << "POST / HTTP/1.1\r\n"
 300       << "User-Agent: novacoin-json-rpc/" << FormatFullVersion() << "\r\n"
 301       << "Host: 127.0.0.1\r\n"
 302       << "Content-Type: application/json\r\n"
 303       << "Content-Length: " << strMsg.size() << "\r\n"
 304       << "Connection: close\r\n"
 305       << "Accept: application/json\r\n";
 306     BOOST_FOREACH(const PAIRTYPE(string, string)& item, mapRequestHeaders)
 307         s << item.first << ": " << item.second << "\r\n";
 308     s << "\r\n" << strMsg;
 309
 310     return s.str();
 311 }
 312
 313 string rfc1123Time()
 314 {
 315     char buffer[64];
 316     time_t now;
 317     time(&now);
 318     struct tm* now_gmt = gmtime(&now);
 319     string locale(setlocale(LC_TIME, NULL));
 320     setlocale(LC_TIME, "C"); // we want POSIX (aka "C") weekday/month strings
 321     strftime(buffer, sizeof(buffer), "%a, %d %b %Y %H:%M:%S +0000", now_gmt);
 322     setlocale(LC_TIME, locale.c_str());
 323     return string(buffer);
 324 }
 325
 326 static string HTTPReply(int nStatus, const string& strMsg, bool keepalive)
 327 {
 328     if (nStatus == HTTP_UNAUTHORIZED)
 329         return strprintf("HTTP/1.0 401 Authorization Required\r\n"
 330             "Date: %s\r\n"
 331             "Server: novacoin-json-rpc/%s\r\n"
 332             "WWW-Authenticate: Basic realm=\"jsonrpc\"\r\n"
 333             "Content-Type: text/html\r\n"
 334             "Content-Length: 296\r\n"
 335             "\r\n"
 336             "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"\r\n"
 337             "\"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd\">\r\n"
 338             "<HTML>\r\n"
 339             "<HEAD>\r\n"
 340             "<TITLE>Error</TITLE>\r\n"
 341             "<META HTTP-EQUIV='Content-Type' CONTENT='text/html; charset=ISO-8859-1'>\r\n"
 342             "</HEAD>\r\n"
 343             "<BODY><H1>401 Unauthorized.</H1></BODY>\r\n"
 344             "</HTML>\r\n", rfc1123Time().c_str(), FormatFullVersion().c_str());
 345     const char *cStatus;
 346          if (nStatus == HTTP_OK) cStatus = "OK";
 347     else if (nStatus == HTTP_BAD_REQUEST) cStatus = "Bad Request";
 348     else if (nStatus == HTTP_FORBIDDEN) cStatus = "Forbidden";
 349     else if (nStatus == HTTP_NOT_FOUND) cStatus = "Not Found";
 350     else if (nStatus == HTTP_INTERNAL_SERVER_ERROR) cStatus = "Internal Server Error";
 351     else cStatus = "";
 352     return strprintf(
 353             "HTTP/1.1 %d %s\r\n"
 354             "Date: %s\r\n"
 355             "Connection: %s\r\n"
 356             "Content-Length: %"PRIszu"\r\n"
 357             "Content-Type: application/json\r\n"
 358             "Server: novacoin-json-rpc/%s\r\n"
 359             "\r\n"
 360             "%s",
 361         nStatus,
 362         cStatus,
 363         rfc1123Time().c_str(),
 364         keepalive ? "keep-alive" : "close",
 365         strMsg.size(),
 366         FormatFullVersion().c_str(),
 367         strMsg.c_str());
 368 }
 369
 370 int ReadHTTPStatus(std::basic_istream<char>& stream, int &proto)
 371 {
 372     string str;
 373     getline(stream, str);
 374     vector<string> vWords;
 375     boost::split(vWords, str, boost::is_any_of(" "));
 376     if (vWords.size() < 2)
 377         return HTTP_INTERNAL_SERVER_ERROR;
 378     proto = 0;
 379     const char *ver = strstr(str.c_str(), "HTTP/1.");
 380     if (ver != NULL)
 381         proto = atoi(ver+7);
 382     return atoi(vWords[1].c_str());
 383 }
 384
 385 int ReadHTTPHeader(std::basic_istream<char>& stream, map<string, string>& mapHeadersRet)
 386 {
 387     int nLen = 0;
 388     loop
 389     {
 390         string str;
 391         std::getline(stream, str);
 392         if (str.empty() || str == "\r")
 393             break;
 394         string::size_type nColon = str.find(":");
 395         if (nColon != string::npos)
 396         {
 397             string strHeader = str.substr(0, nColon);
 398             boost::trim(strHeader);
 399             boost::to_lower(strHeader);
 400             string strValue = str.substr(nColon+1);
 401             boost::trim(strValue);
 402             mapHeadersRet[strHeader] = strValue;
 403             if (strHeader == "content-length")
 404                 nLen = atoi(strValue.c_str());
 405         }
 406     }
 407     return nLen;
 408 }
 409
 410 int ReadHTTP(std::basic_istream<char>& stream, map<string, string>& mapHeadersRet, string& strMessageRet)
 411 {
 412     mapHeadersRet.clear();
 413     strMessageRet = "";
 414
 415     // Read status
 416     int nProto = 0;
 417     int nStatus = ReadHTTPStatus(stream, nProto);
 418
 419     // Read header
 420     int nLen = ReadHTTPHeader(stream, mapHeadersRet);
 421     if (nLen < 0 || nLen > (int)MAX_SIZE)
 422         return HTTP_INTERNAL_SERVER_ERROR;
 423
 424     // Read message
 425     if (nLen > 0)
 426     {
 427         vector<char> vch(nLen);
 428         stream.read(&vch[0], nLen);
 429         strMessageRet = string(vch.begin(), vch.end());
 430     }
 431
 432     string sConHdr = mapHeadersRet["connection"];
 433
 434     if ((sConHdr != "close") && (sConHdr != "keep-alive"))
 435     {
 436         if (nProto >= 1)
 437             mapHeadersRet["connection"] = "keep-alive";
 438         else
 439             mapHeadersRet["connection"] = "close";
 440     }
 441
 442     return nStatus;
 443 }
 444
 445 bool HTTPAuthorized(map<string, string>& mapHeaders)
 446 {
 447     string strAuth = mapHeaders["authorization"];
 448     if (strAuth.substr(0,6) != "Basic ")
 449         return false;
 450     string strUserPass64 = strAuth.substr(6); boost::trim(strUserPass64);
 451     string strUserPass = DecodeBase64(strUserPass64);
 452     return strUserPass == strRPCUserColonPass;
 453 }
 454
 455 //
 456 // JSON-RPC protocol.  Bitcoin speaks version 1.0 for maximum compatibility,
 457 // but uses JSON-RPC 1.1/2.0 standards for parts of the 1.0 standard that were
 458 // unspecified (HTTP errors and contents of 'error').
 459 //
 460 // 1.0 spec: http://json-rpc.org/wiki/specification
 461 // 1.2 spec: http://groups.google.com/group/json-rpc/web/json-rpc-over-http
 462 // http://www.codeproject.com/KB/recipes/JSON_Spirit.aspx
 463 //
 464
 465 string JSONRPCRequest(const string& strMethod, const Array& params, const Value& id)
 466 {
 467     Object request;
 468     request.push_back(Pair("method", strMethod));
 469     request.push_back(Pair("params", params));
 470     request.push_back(Pair("id", id));
 471     return write_string(Value(request), false) + "\n";
 472 }
 473
 474 Object JSONRPCReplyObj(const Value& result, const Value& error, const Value& id)
 475 {
 476     Object reply;
 477     if (error.type() != null_type)
 478         reply.push_back(Pair("result", Value::null));
 479     else
 480         reply.push_back(Pair("result", result));
 481     reply.push_back(Pair("error", error));
 482     reply.push_back(Pair("id", id));
 483     return reply;
 484 }
 485
 486 string JSONRPCReply(const Value& result, const Value& error, const Value& id)
 487 {
 488     Object reply = JSONRPCReplyObj(result, error, id);
 489     return write_string(Value(reply), false) + "\n";
 490 }
 491
 492 void ErrorReply(std::ostream& stream, const Object& objError, const Value& id)
 493 {
 494     // Send error reply from json-rpc error object
 495     int nStatus = HTTP_INTERNAL_SERVER_ERROR;
 496     int code = find_value(objError, "code").get_int();
 497     if (code == RPC_INVALID_REQUEST) nStatus = HTTP_BAD_REQUEST;
 498     else if (code == RPC_METHOD_NOT_FOUND) nStatus = HTTP_NOT_FOUND;
 499     string strReply = JSONRPCReply(Value::null, objError, id);
 500     stream << HTTPReply(nStatus, strReply, false) << std::flush;
 501 }
 502
 503 bool ClientAllowed(const boost::asio::ip::address& address)
 504 {
 505     // Make sure that IPv4-compatible and IPv4-mapped IPv6 addresses are treated as IPv4 addresses
 506     if (address.is_v6()
 507      && (address.to_v6().is_v4_compatible()
 508       || address.to_v6().is_v4_mapped()))
 509         return ClientAllowed(address.to_v6().to_v4());
 510
 511     if (address == asio::ip::address_v4::loopback()
 512      || address == asio::ip::address_v6::loopback()
 513      || (address.is_v4()
 514          // Check whether IPv4 addresses match 127.0.0.0/8 (loopback subnet)
 515       && (address.to_v4().to_ulong() & 0xff000000) == 0x7f000000))
 516         return true;
 517
 518     const string strAddress = address.to_string();
 519     const vector<string>& vAllow = mapMultiArgs["-rpcallowip"];
 520     BOOST_FOREACH(string strAllow, vAllow)
 521         if (WildcardMatch(strAddress, strAllow))
 522             return true;
 523     return false;
 524 }
 525
 526 //
 527 // IOStream device that speaks SSL but can also speak non-SSL
 528 //
 529 template <typename Protocol>
 530 class SSLIOStreamDevice : public iostreams::device<iostreams::bidirectional> {
 531 public:
 532     SSLIOStreamDevice(asio::ssl::stream<typename Protocol::socket> &streamIn, bool fUseSSLIn) : stream(streamIn)
 533     {
 534         fUseSSL = fUseSSLIn;
 535         fNeedHandshake = fUseSSLIn;
 536     }
 537
 538     void handshake(ssl::stream_base::handshake_type role)
 539     {
 540         if (!fNeedHandshake) return;
 541         fNeedHandshake = false;
 542         stream.handshake(role);
 543     }
 544     std::streamsize read(char* s, std::streamsize n)
 545     {
 546         handshake(ssl::stream_base::server); // HTTPS servers read first
 547         if (fUseSSL) return stream.read_some(asio::buffer(s, n));
 548         return stream.next_layer().read_some(asio::buffer(s, n));
 549     }
 550     std::streamsize write(const char* s, std::streamsize n)
 551     {
 552         handshake(ssl::stream_base::client); // HTTPS clients write first
 553         if (fUseSSL) return asio::write(stream, asio::buffer(s, n));
 554         return asio::write(stream.next_layer(), asio::buffer(s, n));
 555     }
 556     bool connect(const std::string& server, const std::string& port)
 557     {
 558         ip::tcp::resolver resolver(stream.get_io_service());
 559         ip::tcp::resolver::query query(server.c_str(), port.c_str());
 560         ip::tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);
 561         ip::tcp::resolver::iterator end;
 562         boost::system::error_code error = asio::error::host_not_found;
 563         while (error && endpoint_iterator != end)
 564         {
 565             stream.lowest_layer().close();
 566             stream.lowest_layer().connect(*endpoint_iterator++, error);
 567         }
 568         if (error)
 569             return false;
 570         return true;
 571     }
 572
 573 private:
 574     bool fNeedHandshake;
 575     bool fUseSSL;
 576     asio::ssl::stream<typename Protocol::socket>& stream;
 577 };
 578
 579 class AcceptedConnection
 580 {
 581 public:
 582     virtual ~AcceptedConnection() {}
 583
 584     virtual std::iostream& stream() = 0;
 585     virtual std::string peer_address_to_string() const = 0;
 586     virtual void close() = 0;
 587 };
 588
 589 template <typename Protocol>
 590 class AcceptedConnectionImpl : public AcceptedConnection
 591 {
 592 public:
 593     AcceptedConnectionImpl(
 594             asio::io_service& io_service,
 595             ssl::context &context,
 596             bool fUseSSL) :
 597         sslStream(io_service, context),
 598         _d(sslStream, fUseSSL),
 599         _stream(_d)
 600     {
 601     }
 602
 603     virtual std::iostream& stream()
 604     {
 605         return _stream;
 606     }
 607
 608     virtual std::string peer_address_to_string() const
 609     {
 610         return peer.address().to_string();
 611     }
 612
 613     virtual void close()
 614     {
 615         _stream.close();
 616     }
 617
 618     typename Protocol::endpoint peer;
 619     asio::ssl::stream<typename Protocol::socket> sslStream;
 620
 621 private:
 622     SSLIOStreamDevice<Protocol> _d;
 623     iostreams::stream< SSLIOStreamDevice<Protocol> > _stream;
 624 };
 625
 626 void ThreadRPCServer(void* parg)
 627 {
 628     // Make this thread recognisable as the RPC listener
 629     RenameThread("bitcoin-rpclist");
 630
 631     try
 632     {
 633         vnThreadsRunning[THREAD_RPCLISTENER]++;
 634         ThreadRPCServer2(parg);
 635         vnThreadsRunning[THREAD_RPCLISTENER]--;
 636     }
 637     catch (std::exception& e) {
 638         vnThreadsRunning[THREAD_RPCLISTENER]--;
 639         PrintException(&e, "ThreadRPCServer()");
 640     } catch (...) {
 641         vnThreadsRunning[THREAD_RPCLISTENER]--;
 642         PrintException(NULL, "ThreadRPCServer()");
 643     }
 644     printf("ThreadRPCServer exited\n");
 645 }
 646
 647 // Forward declaration required for RPCListen
 648 template <typename Protocol, typename SocketAcceptorService>
 649 static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
 650                              ssl::context& context,
 651                              bool fUseSSL,
 652                              AcceptedConnection* conn,
 653                              const boost::system::error_code& error);
 654
 655 /**
 656  * Sets up I/O resources to accept and handle a new connection.
 657  */
 658 template <typename Protocol, typename SocketAcceptorService>
 659 static void RPCListen(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
 660                    ssl::context& context,
 661                    const bool fUseSSL)
 662 {
 663     // Accept connection
 664     AcceptedConnectionImpl<Protocol>* conn = new AcceptedConnectionImpl<Protocol>(acceptor->get_io_service(), context, fUseSSL);
 665
 666     acceptor->async_accept(
 667             conn->sslStream.lowest_layer(),
 668             conn->peer,
 669             boost::bind(&RPCAcceptHandler<Protocol, SocketAcceptorService>,
 670                 acceptor,
 671                 boost::ref(context),
 672                 fUseSSL,
 673                 conn,
 674                 boost::asio::placeholders::error));
 675 }
 676
 677 /**
 678  * Accept and handle incoming connection.
 679  */
 680 template <typename Protocol, typename SocketAcceptorService>
 681 static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol, SocketAcceptorService> > acceptor,
 682                              ssl::context& context,
 683                              const bool fUseSSL,
 684                              AcceptedConnection* conn,
 685                              const boost::system::error_code& error)
 686 {
 687     vnThreadsRunning[THREAD_RPCLISTENER]++;
 688
 689     // Immediately start accepting new connections, except when we're cancelled or our socket is closed.
 690     if (error != asio::error::operation_aborted
 691      && acceptor->is_open())
 692         RPCListen(acceptor, context, fUseSSL);
 693
 694     AcceptedConnectionImpl<ip::tcp>* tcp_conn = dynamic_cast< AcceptedConnectionImpl<ip::tcp>* >(conn);
 695
 696     // TODO: Actually handle errors
 697     if (error)
 698     {
 699         delete conn;
 700     }
 701
 702     // Restrict callers by IP.  It is important to
 703     // do this before starting client thread, to filter out
 704     // certain DoS and misbehaving clients.
 705     else if (tcp_conn
 706           && !ClientAllowed(tcp_conn->peer.address()))
 707     {
 708         // Only send a 403 if we're not using SSL to prevent a DoS during the SSL handshake.
 709         if (!fUseSSL)
 710             conn->stream() << HTTPReply(HTTP_FORBIDDEN, "", false) << std::flush;
 711         delete conn;
 712     }
 713
 714     // start HTTP client thread
 715     else if (!NewThread(ThreadRPCServer3, conn)) {
 716         printf("Failed to create RPC server client thread\n");
 717         delete conn;
 718     }
 719
 720     vnThreadsRunning[THREAD_RPCLISTENER]--;
 721 }
 722
 723 void ThreadRPCServer2(void* parg)
 724 {
 725     printf("ThreadRPCServer started\n");
 726
 727     strRPCUserColonPass = mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"];
 728     if (mapArgs["-rpcpassword"] == "")
 729     {
 730         unsigned char rand_pwd[32];
 731         RAND_bytes(rand_pwd, 32);
 732         string strWhatAmI = "To use bitcoind";
 733         if (mapArgs.count("-server"))
 734             strWhatAmI = strprintf(_("To use the %s option"), "\"-server\"");
 735         else if (mapArgs.count("-daemon"))
 736             strWhatAmI = strprintf(_("To use the %s option"), "\"-daemon\"");
 737         uiInterface.ThreadSafeMessageBox(strprintf(
 738             _("%s, you must set a rpcpassword in the configuration file:\n %s\n"
 739               "It is recommended you use the following random password:\n"
 740               "rpcuser=bitcoinrpc\n"
 741               "rpcpassword=%s\n"
 742               "(you do not need to remember this password)\n"
 743               "If the file does not exist, create it with owner-readable-only file permissions.\n"),
 744                 strWhatAmI.c_str(),
 745                 GetConfigFile().string().c_str(),
 746                 EncodeBase58(&rand_pwd[0],&rand_pwd[0]+32).c_str()),
 747             _("Error"), CClientUIInterface::OK | CClientUIInterface::MODAL);
 748         StartShutdown();
 749         return;
 750     }
 751
 752     const bool fUseSSL = GetBoolArg("-rpcssl");
 753
 754     asio::io_service io_service;
 755
 756     ssl::context context(io_service, ssl::context::sslv23);
 757     if (fUseSSL)
 758     {
 759         context.set_options(ssl::context::no_sslv2);
 760
 761         filesystem::path pathCertFile(GetArg("-rpcsslcertificatechainfile", "server.cert"));
 762         if (!pathCertFile.is_complete()) pathCertFile = filesystem::path(GetDataDir()) / pathCertFile;
 763         if (filesystem::exists(pathCertFile)) context.use_certificate_chain_file(pathCertFile.string());
 764         else printf("ThreadRPCServer ERROR: missing server certificate file %s\n", pathCertFile.string().c_str());
 765
 766         filesystem::path pathPKFile(GetArg("-rpcsslprivatekeyfile", "server.pem"));
 767         if (!pathPKFile.is_complete()) pathPKFile = filesystem::path(GetDataDir()) / pathPKFile;
 768         if (filesystem::exists(pathPKFile)) context.use_private_key_file(pathPKFile.string(), ssl::context::pem);
 769         else printf("ThreadRPCServer ERROR: missing server private key file %s\n", pathPKFile.string().c_str());
 770
 771         string strCiphers = GetArg("-rpcsslciphers", "TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!AH:!3DES:@STRENGTH");
 772         SSL_CTX_set_cipher_list(context.impl(), strCiphers.c_str());
 773     }
 774
 775     // Try a dual IPv6/IPv4 socket, falling back to separate IPv4 and IPv6 sockets
 776     const bool loopback = !mapArgs.count("-rpcallowip");
 777     asio::ip::address bindAddress = loopback ? asio::ip::address_v6::loopback() : asio::ip::address_v6::any();
 778     ip::tcp::endpoint endpoint(bindAddress, GetArg("-rpcport", GetDefaultRPCPort()));
 779     boost::system::error_code v6_only_error;
 780     boost::shared_ptr<ip::tcp::acceptor> acceptor(new ip::tcp::acceptor(io_service));
 781
 782     boost::signals2::signal<void ()> StopRequests;
 783
 784     bool fListening = false;
 785     std::string strerr;
 786     try
 787     {
 788         acceptor->open(endpoint.protocol());
 789         acceptor->set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
 790
 791         // Try making the socket dual IPv6/IPv4 (if listening on the "any" address)
 792         acceptor->set_option(boost::asio::ip::v6_only(loopback), v6_only_error);
 793
 794         acceptor->bind(endpoint);
 795         acceptor->listen(socket_base::max_connections);
 796
 797         RPCListen(acceptor, context, fUseSSL);
 798         // Cancel outstanding listen-requests for this acceptor when shutting down
 799         StopRequests.connect(signals2::slot<void ()>(
 800                     static_cast<void (ip::tcp::acceptor::*)()>(&ip::tcp::acceptor::close), acceptor.get())
 801                 .track(acceptor));
 802
 803         fListening = true;
 804     }
 805     catch(boost::system::system_error &e)
 806     {
 807         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());
 808     }
 809
 810     try {
 811         // If dual IPv6/IPv4 failed (or we're opening loopback interfaces only), open IPv4 separately
 812         if (!fListening || loopback || v6_only_error)
 813         {
 814             bindAddress = loopback ? asio::ip::address_v4::loopback() : asio::ip::address_v4::any();
 815             endpoint.address(bindAddress);
 816
 817             acceptor.reset(new ip::tcp::acceptor(io_service));
 818             acceptor->open(endpoint.protocol());
 819             acceptor->set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
 820             acceptor->bind(endpoint);
 821             acceptor->listen(socket_base::max_connections);
 822
 823             RPCListen(acceptor, context, fUseSSL);
 824             // Cancel outstanding listen-requests for this acceptor when shutting down
 825             StopRequests.connect(signals2::slot<void ()>(
 826                         static_cast<void (ip::tcp::acceptor::*)()>(&ip::tcp::acceptor::close), acceptor.get())
 827                     .track(acceptor));
 828
 829             fListening = true;
 830         }
 831     }
 832     catch(boost::system::system_error &e)
 833     {
 834         strerr = strprintf(_("An error occurred while setting up the RPC port %u for listening on IPv4: %s"), endpoint.port(), e.what());
 835     }
 836
 837     if (!fListening) {
 838         uiInterface.ThreadSafeMessageBox(strerr, _("Error"), CClientUIInterface::OK | CClientUIInterface::MODAL);
 839         StartShutdown();
 840         return;
 841     }
 842
 843     vnThreadsRunning[THREAD_RPCLISTENER]--;
 844     while (!fShutdown)
 845         io_service.run_one();
 846     vnThreadsRunning[THREAD_RPCLISTENER]++;
 847     StopRequests();
 848 }
 849
 850 class JSONRequest
 851 {
 852 public:
 853     Value id;
 854     string strMethod;
 855     Array params;
 856
 857     JSONRequest() { id = Value::null; }
 858     void parse(const Value& valRequest);
 859 };
 860
 861 void JSONRequest::parse(const Value& valRequest)
 862 {
 863     // Parse request
 864     if (valRequest.type() != obj_type)
 865         throw JSONRPCError(RPC_INVALID_REQUEST, "Invalid Request object");
 866     const Object& request = valRequest.get_obj();
 867
 868     // Parse id now so errors from here on will have the id
 869     id = find_value(request, "id");
 870
 871     // Parse method
 872     Value valMethod = find_value(request, "method");
 873     if (valMethod.type() == null_type)
 874         throw JSONRPCError(RPC_INVALID_REQUEST, "Missing method");
 875     if (valMethod.type() != str_type)
 876         throw JSONRPCError(RPC_INVALID_REQUEST, "Method must be a string");
 877     strMethod = valMethod.get_str();
 878     if (strMethod != "getwork" && strMethod != "getblocktemplate")
 879         printf("ThreadRPCServer method=%s\n", strMethod.c_str());
 880
 881     // Parse params
 882     Value valParams = find_value(request, "params");
 883     if (valParams.type() == array_type)
 884         params = valParams.get_array();
 885     else if (valParams.type() == null_type)
 886         params = Array();
 887     else
 888         throw JSONRPCError(RPC_INVALID_REQUEST, "Params must be an array");
 889 }
 890
 891 static Object JSONRPCExecOne(const Value& req)
 892 {
 893     Object rpc_result;
 894
 895     JSONRequest jreq;
 896     try {
 897         jreq.parse(req);
 898
 899         Value result = tableRPC.execute(jreq.strMethod, jreq.params);
 900         rpc_result = JSONRPCReplyObj(result, Value::null, jreq.id);
 901     }
 902     catch (Object& objError)
 903     {
 904         rpc_result = JSONRPCReplyObj(Value::null, objError, jreq.id);
 905     }
 906     catch (std::exception& e)
 907     {
 908         rpc_result = JSONRPCReplyObj(Value::null,
 909                                      JSONRPCError(RPC_PARSE_ERROR, e.what()), jreq.id);
 910     }
 911
 912     return rpc_result;
 913 }
 914
 915 static string JSONRPCExecBatch(const Array& vReq)
 916 {
 917     Array ret;
 918     for (unsigned int reqIdx = 0; reqIdx < vReq.size(); reqIdx++)
 919         ret.push_back(JSONRPCExecOne(vReq[reqIdx]));
 920
 921     return write_string(Value(ret), false) + "\n";
 922 }
 923
 924 static CCriticalSection cs_THREAD_RPCHANDLER;
 925
 926 void ThreadRPCServer3(void* parg)
 927 {
 928     // Make this thread recognisable as the RPC handler
 929     RenameThread("bitcoin-rpchand");
 930
 931     {
 932         LOCK(cs_THREAD_RPCHANDLER);
 933         vnThreadsRunning[THREAD_RPCHANDLER]++;
 934     }
 935     AcceptedConnection *conn = (AcceptedConnection *) parg;
 936
 937     bool fRun = true;
 938     loop {
 939         if (fShutdown || !fRun)
 940         {
 941             conn->close();
 942             delete conn;
 943             {
 944                 LOCK(cs_THREAD_RPCHANDLER);
 945                 --vnThreadsRunning[THREAD_RPCHANDLER];
 946             }
 947             return;
 948         }
 949         map<string, string> mapHeaders;
 950         string strRequest;
 951
 952         ReadHTTP(conn->stream(), mapHeaders, strRequest);
 953
 954         // Check authorization
 955         if (mapHeaders.count("authorization") == 0)
 956         {
 957             conn->stream() << HTTPReply(HTTP_UNAUTHORIZED, "", false) << std::flush;
 958             break;
 959         }
 960         if (!HTTPAuthorized(mapHeaders))
 961         {
 962             printf("ThreadRPCServer incorrect password attempt from %s\n", conn->peer_address_to_string().c_str());
 963             /* Deter brute-forcing short passwords.
 964                If this results in a DOS the user really
 965                shouldn't have their RPC port exposed.*/
 966             if (mapArgs["-rpcpassword"].size() < 20)
 967                 Sleep(250);
 968
 969             conn->stream() << HTTPReply(HTTP_UNAUTHORIZED, "", false) << std::flush;
 970             break;
 971         }
 972         if (mapHeaders["connection"] == "close")
 973             fRun = false;
 974
 975         JSONRequest jreq;
 976         try
 977         {
 978             // Parse request
 979             Value valRequest;
 980             if (!read_string(strRequest, valRequest))
 981                 throw JSONRPCError(RPC_PARSE_ERROR, "Parse error");
 982
 983             string strReply;
 984
 985             // singleton request
 986             if (valRequest.type() == obj_type) {
 987                 jreq.parse(valRequest);
 988
 989                 Value result = tableRPC.execute(jreq.strMethod, jreq.params);
 990
 991                 // Send reply
 992                 strReply = JSONRPCReply(result, Value::null, jreq.id);
 993
 994             // array of requests
 995             } else if (valRequest.type() == array_type)
 996                 strReply = JSONRPCExecBatch(valRequest.get_array());
 997             else
 998                 throw JSONRPCError(RPC_PARSE_ERROR, "Top-level object parse error");
 999
1000             conn->stream() << HTTPReply(HTTP_OK, strReply, fRun) << std::flush;
1001         }
1002         catch (Object& objError)
1003         {
1004             ErrorReply(conn->stream(), objError, jreq.id);
1005             break;
1006         }
1007         catch (std::exception& e)
1008         {
1009             ErrorReply(conn->stream(), JSONRPCError(RPC_PARSE_ERROR, e.what()), jreq.id);
1010             break;
1011         }
1012     }
1013
1014     delete conn;
1015     {
1016         LOCK(cs_THREAD_RPCHANDLER);
1017         vnThreadsRunning[THREAD_RPCHANDLER]--;
1018     }
1019 }
1020
1021 json_spirit::Value CRPCTable::execute(const std::string &strMethod, const json_spirit::Array &params) const
1022 {
1023     // Find method
1024     const CRPCCommand *pcmd = tableRPC[strMethod];
1025     if (!pcmd)
1026         throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found");
1027
1028     // Observe safe mode
1029     string strWarning = GetWarnings("rpc");
1030     if (strWarning != "" && !GetBoolArg("-disablesafemode") &&
1031         !pcmd->okSafeMode)
1032         throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE, string("Safe mode: ") + strWarning);
1033
1034     try
1035     {
1036         // Execute
1037         Value result;
1038         {
1039             if (pcmd->unlocked)
1040                 result = pcmd->actor(params, false);
1041             else {
1042                 LOCK2(cs_main, pwalletMain->cs_wallet);
1043                 result = pcmd->actor(params, false);
1044             }
1045         }
1046         return result;
1047     }
1048     catch (std::exception& e)
1049     {
1050         throw JSONRPCError(RPC_MISC_ERROR, e.what());
1051     }
1052 }
1053
1054
1055 Object CallRPC(const string& strMethod, const Array& params)
1056 {
1057     if (mapArgs["-rpcuser"] == "" && mapArgs["-rpcpassword"] == "")
1058         throw runtime_error(strprintf(
1059             _("You must set rpcpassword=<password> in the configuration file:\n%s\n"
1060               "If the file does not exist, create it with owner-readable-only file permissions."),
1061                 GetConfigFile().string().c_str()));
1062
1063     // Connect to localhost
1064     bool fUseSSL = GetBoolArg("-rpcssl");
1065     asio::io_service io_service;
1066     ssl::context context(io_service, ssl::context::sslv23);
1067     context.set_options(ssl::context::no_sslv2);
1068     asio::ssl::stream<asio::ip::tcp::socket> sslStream(io_service, context);
1069     SSLIOStreamDevice<asio::ip::tcp> d(sslStream, fUseSSL);
1070     iostreams::stream< SSLIOStreamDevice<asio::ip::tcp> > stream(d);
1071     if (!d.connect(GetArg("-rpcconnect", "127.0.0.1"), GetArg("-rpcport", itostr(GetDefaultRPCPort()))))
1072         throw runtime_error("couldn't connect to server");
1073
1074     // HTTP basic authentication
1075     string strUserPass64 = EncodeBase64(mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"]);
1076     map<string, string> mapRequestHeaders;
1077     mapRequestHeaders["Authorization"] = string("Basic ") + strUserPass64;
1078
1079     // Send request
1080     string strRequest = JSONRPCRequest(strMethod, params, 1);
1081     string strPost = HTTPPost(strRequest, mapRequestHeaders);
1082     stream << strPost << std::flush;
1083
1084     // Receive reply
1085     map<string, string> mapHeaders;
1086     string strReply;
1087     int nStatus = ReadHTTP(stream, mapHeaders, strReply);
1088     if (nStatus == HTTP_UNAUTHORIZED)
1089         throw runtime_error("incorrect rpcuser or rpcpassword (authorization failed)");
1090     else if (nStatus >= 400 && nStatus != HTTP_BAD_REQUEST && nStatus != HTTP_NOT_FOUND && nStatus != HTTP_INTERNAL_SERVER_ERROR)
1091         throw runtime_error(strprintf("server returned HTTP error %d", nStatus));
1092     else if (strReply.empty())
1093         throw runtime_error("no response from server");
1094
1095     // Parse reply
1096     Value valReply;
1097     if (!read_string(strReply, valReply))
1098         throw runtime_error("couldn't parse reply from server");
1099     const Object& reply = valReply.get_obj();
1100     if (reply.empty())
1101         throw runtime_error("expected reply to have result, error and id properties");
1102
1103     return reply;
1104 }
1105
1106
1107
1108
1109 template<typename T>
1110 void ConvertTo(Value& value, bool fAllowNull=false)
1111 {
1112     if (fAllowNull && value.type() == null_type)
1113         return;
1114     if (value.type() == str_type)
1115     {
1116         // reinterpret string as unquoted json value
1117         Value value2;
1118         string strJSON = value.get_str();
1119         if (!read_string(strJSON, value2))
1120             throw runtime_error(string("Error parsing JSON:")+strJSON);
1121         ConvertTo<T>(value2, fAllowNull);
1122         value = value2;
1123     }
1124     else
1125     {
1126         value = value.get_value<T>();
1127     }
1128 }
1129
1130 // Convert strings to command-specific RPC representation
1131 Array RPCConvertValues(const std::string &strMethod, const std::vector<std::string> &strParams)
1132 {
1133     Array params;
1134     BOOST_FOREACH(const std::string &param, strParams)
1135         params.push_back(param);
1136
1137     int n = params.size();
1138
1139     //
1140     // Special case non-string parameter types
1141     //
1142     if (strMethod == "stop"                   && n > 0) ConvertTo<bool>(params[0]);
1143     if (strMethod == "setgenerate"            && n > 0) ConvertTo<bool>(params[0]);
1144     if (strMethod == "setgenerate"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
1145     if (strMethod == "sendtoaddress"          && n > 1) ConvertTo<double>(params[1]);
1146     if (strMethod == "settxfee"               && n > 0) ConvertTo<double>(params[0]);
1147     if (strMethod == "getreceivedbyaddress"   && n > 1) ConvertTo<boost::int64_t>(params[1]);
1148     if (strMethod == "getreceivedbyaccount"   && n > 1) ConvertTo<boost::int64_t>(params[1]);
1149     if (strMethod == "listreceivedbyaddress"  && n > 0) ConvertTo<boost::int64_t>(params[0]);
1150     if (strMethod == "listreceivedbyaddress"  && n > 1) ConvertTo<bool>(params[1]);
1151     if (strMethod == "listreceivedbyaccount"  && n > 0) ConvertTo<boost::int64_t>(params[0]);
1152     if (strMethod == "listreceivedbyaccount"  && n > 1) ConvertTo<bool>(params[1]);
1153     if (strMethod == "getbalance"             && n > 1) ConvertTo<boost::int64_t>(params[1]);
1154     if (strMethod == "getblock"               && n > 1) ConvertTo<bool>(params[1]);
1155     if (strMethod == "getblockbynumber"       && n > 0) ConvertTo<boost::int64_t>(params[0]);
1156     if (strMethod == "getblockbynumber"       && n > 1) ConvertTo<bool>(params[1]);
1157     if (strMethod == "getblockhash"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
1158     if (strMethod == "move"                   && n > 2) ConvertTo<double>(params[2]);
1159     if (strMethod == "move"                   && n > 3) ConvertTo<boost::int64_t>(params[3]);
1160     if (strMethod == "sendfrom"               && n > 2) ConvertTo<double>(params[2]);
1161     if (strMethod == "sendfrom"               && n > 3) ConvertTo<boost::int64_t>(params[3]);
1162     if (strMethod == "listtransactions"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
1163     if (strMethod == "listtransactions"       && n > 2) ConvertTo<boost::int64_t>(params[2]);
1164     if (strMethod == "listaccounts"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
1165     if (strMethod == "walletpassphrase"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
1166     if (strMethod == "walletpassphrase"       && n > 2) ConvertTo<bool>(params[2]);
1167     if (strMethod == "getblocktemplate"       && n > 0) ConvertTo<Object>(params[0]);
1168     if (strMethod == "listsinceblock"         && n > 1) ConvertTo<boost::int64_t>(params[1]);
1169     if (strMethod == "sendmany"               && n > 1) ConvertTo<Object>(params[1]);
1170     if (strMethod == "sendmany"               && n > 2) ConvertTo<boost::int64_t>(params[2]);
1171     if (strMethod == "reservebalance"          && n > 0) ConvertTo<bool>(params[0]);
1172     if (strMethod == "reservebalance"          && n > 1) ConvertTo<double>(params[1]);
1173     if (strMethod == "addmultisigaddress"     && n > 0) ConvertTo<boost::int64_t>(params[0]);
1174     if (strMethod == "addmultisigaddress"     && n > 1) ConvertTo<Array>(params[1]);
1175     if (strMethod == "listunspent"            && n > 0) ConvertTo<boost::int64_t>(params[0]);
1176     if (strMethod == "listunspent"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
1177     if (strMethod == "listunspent"            && n > 2) ConvertTo<Array>(params[2]);
1178     if (strMethod == "getrawtransaction"      && n > 1) ConvertTo<boost::int64_t>(params[1]);
1179     if (strMethod == "createrawtransaction"   && n > 0) ConvertTo<Array>(params[0]);
1180     if (strMethod == "createrawtransaction"   && n > 1) ConvertTo<Object>(params[1]);
1181     if (strMethod == "signrawtransaction"     && n > 1) ConvertTo<Array>(params[1], true);
1182     if (strMethod == "signrawtransaction"     && n > 2) ConvertTo<Array>(params[2], true);
1183
1184     return params;
1185 }
1186
1187 int CommandLineRPC(int argc, char *argv[])
1188 {
1189     string strPrint;
1190     int nRet = 0;
1191     try
1192     {
1193         // Skip switches
1194         while (argc > 1 && IsSwitchChar(argv[1][0]))
1195         {
1196             argc--;
1197             argv++;
1198         }
1199
1200         // Method
1201         if (argc < 2)
1202             throw runtime_error("too few parameters");
1203         string strMethod = argv[1];
1204
1205         // Parameters default to strings
1206         std::vector<std::string> strParams(&argv[2], &argv[argc]);
1207         Array params = RPCConvertValues(strMethod, strParams);
1208
1209         // Execute
1210         Object reply = CallRPC(strMethod, params);
1211
1212         // Parse reply
1213         const Value& result = find_value(reply, "result");
1214         const Value& error  = find_value(reply, "error");
1215
1216         if (error.type() != null_type)
1217         {
1218             // Error
1219             strPrint = "error: " + write_string(error, false);
1220             int code = find_value(error.get_obj(), "code").get_int();
1221             nRet = abs(code);
1222         }
1223         else
1224         {
1225             // Result
1226             if (result.type() == null_type)
1227                 strPrint = "";
1228             else if (result.type() == str_type)
1229                 strPrint = result.get_str();
1230             else
1231                 strPrint = write_string(result, true);
1232         }
1233     }
1234     catch (std::exception& e)
1235     {
1236         strPrint = string("error: ") + e.what();
1237         nRet = 87;
1238     }
1239     catch (...)
1240     {
1241         PrintException(NULL, "CommandLineRPC()");
1242     }
1243
1244     if (strPrint != "")
1245     {
1246         fprintf((nRet == 0 ? stdout : stderr), "%s\n", strPrint.c_str());
1247     }
1248     return nRet;
1249 }
1250
1251
1252
1253
1254 #ifdef TEST
1255 int main(int argc, char *argv[])
1256 {
1257 #ifdef _MSC_VER
1258     // Turn off Microsoft heap dump noise
1259     _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE);
1260     _CrtSetReportFile(_CRT_WARN, CreateFile("NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0));
1261 #endif
1262     setbuf(stdin, NULL);
1263     setbuf(stdout, NULL);
1264     setbuf(stderr, NULL);
1265
1266     try
1267     {
1268         if (argc >= 2 && string(argv[1]) == "-server")
1269         {
1270             printf("server ready\n");
1271             ThreadRPCServer(NULL);
1272         }
1273         else
1274         {
1275             return CommandLineRPC(argc, argv);
1276         }
1277     }
1278     catch (std::exception& e) {
1279         PrintException(&e, "main()");
1280     } catch (...) {
1281         PrintException(NULL, "main()");
1282     }
1283     return 0;
1284 }
1285 #endif
1286
1287 const CRPCTable tableRPC;