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twister-core/rpc.cpp

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// Copyright (c) 2010 Satoshi Nakamoto
// Distributed under the MIT/X11 software license, see the accompanying
// file license.txt or http://www.opensource.org/licenses/mit-license.php.
#include "headers.h"
#undef printf
#include <boost/asio.hpp>
#include "json/json_spirit_reader_template.h"
#include "json/json_spirit_writer_template.h"
#include "json/json_spirit_utils.h"
#define printf OutputDebugStringF
// MinGW 3.4.5 gets "fatal error: had to relocate PCH" if the json headers are
// precompiled in headers.h. The problem might be when the pch file goes over
// a certain size around 145MB. If we need access to json_spirit outside this
// file, we could use the compiled json_spirit option.
using boost::asio::ip::tcp;
using namespace json_spirit;
void ThreadRPCServer2(void* parg);
typedef Value(*rpcfn_type)(const Array& params, bool fHelp);
extern map<string, rpcfn_type> mapCallTable;
void PrintConsole(const char* format, ...)
{
char buffer[50000];
int limit = sizeof(buffer);
va_list arg_ptr;
va_start(arg_ptr, format);
int ret = _vsnprintf(buffer, limit, format, arg_ptr);
va_end(arg_ptr);
if (ret < 0 || ret >= limit)
{
ret = limit - 1;
buffer[limit-1] = 0;
}
#if defined(__WXMSW__) && defined(GUI)
MyMessageBox(buffer, "Bitcoin", wxOK | wxICON_EXCLAMATION);
#else
fprintf(stdout, "%s", buffer);
#endif
}
///
/// Note: This interface may still be subject to change.
///
Value help(const Array& params, bool fHelp)
{
if (fHelp || params.size() > 1)
throw runtime_error(
"help [command]\n"
"List commands, or get help for a command.");
string strCommand;
if (params.size() > 0)
strCommand = params[0].get_str();
string strRet;
set<rpcfn_type> setDone;
for (map<string, rpcfn_type>::iterator mi = mapCallTable.begin(); mi != mapCallTable.end(); ++mi)
{
string strMethod = (*mi).first;
// We already filter duplicates, but these deprecated screw up the sort order
if (strMethod == "getamountreceived" ||
strMethod == "getallreceived")
continue;
if (strCommand != "" && strMethod != strCommand)
continue;
try
{
Array params;
rpcfn_type pfn = (*mi).second;
if (setDone.insert(pfn).second)
(*pfn)(params, true);
}
catch (std::exception& e)
{
// Help text is returned in an exception
string strHelp = string(e.what());
if (strCommand == "")
if (strHelp.find('\n') != -1)
strHelp = strHelp.substr(0, strHelp.find('\n'));
strRet += strHelp + "\n";
}
}
if (strRet == "")
strRet = strprintf("help: unknown command: %s\n", strCommand.c_str());
strRet = strRet.substr(0,strRet.size()-1);
return strRet;
}
Value stop(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"stop\n"
"Stop bitcoin server.");
// Shutdown will take long enough that the response should get back
CreateThread(Shutdown, NULL);
return "bitcoin server stopping";
}
Value getblockcount(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"getblockcount\n"
"Returns the number of blocks in the longest block chain.");
return nBestHeight + 1;
}
Value getblocknumber(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"getblocknumber\n"
"Returns the block number of the latest block in the longest block chain.");
return nBestHeight;
}
Value getconnectioncount(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"getconnectioncount\n"
"Returns the number of connections to other nodes.");
return (int)vNodes.size();
}
double GetDifficulty()
{
// Floating point number that is a multiple of the minimum difficulty,
// minimum difficulty = 1.0.
if (pindexBest == NULL)
return 1.0;
int nShift = 256 - 32 - 31; // to fit in a uint
double dMinimum = (CBigNum().SetCompact(bnProofOfWorkLimit.GetCompact()) >> nShift).getuint();
double dCurrently = (CBigNum().SetCompact(pindexBest->nBits) >> nShift).getuint();
return dMinimum / dCurrently;
}
Value getdifficulty(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"getdifficulty\n"
"Returns the proof-of-work difficulty as a multiple of the minimum difficulty.");
return GetDifficulty();
}
Value getbalance(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"getbalance\n"
"Returns the server's available balance.");
return ((double)GetBalance() / (double)COIN);
}
Value getgenerate(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"getgenerate\n"
"Returns true or false.");
return (bool)fGenerateBitcoins;
}
Value setgenerate(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 1 || params.size() > 2)
throw runtime_error(
"setgenerate <generate> [genproclimit]\n"
"<generate> is true or false to turn generation on or off.\n"
"Generation is limited to [genproclimit] processors, -1 is unlimited.");
bool fGenerate = true;
if (params.size() > 0)
fGenerate = params[0].get_bool();
if (params.size() > 1)
{
int nGenProcLimit = params[1].get_int();
fLimitProcessors = (nGenProcLimit != -1);
CWalletDB().WriteSetting("fLimitProcessors", fLimitProcessors);
if (nGenProcLimit != -1)
CWalletDB().WriteSetting("nLimitProcessors", nLimitProcessors = nGenProcLimit);
}
GenerateBitcoins(fGenerate);
return Value::null;
}
Value gethashespersec(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"gethashespersec\n"
"Returns a recent hashes per second performance measurement while generating.");
if (GetTimeMillis() - nHPSTimerStart > 8000)
return (boost::int64_t)0;
return (boost::int64_t)dHashesPerSec;
}
Value getinfo(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"getinfo\n"
"Returns an object containing various state info.");
Object obj;
obj.push_back(Pair("version", (int)VERSION));
obj.push_back(Pair("balance", (double)GetBalance() / (double)COIN));
obj.push_back(Pair("blocks", (int)nBestHeight + 1));
obj.push_back(Pair("connections", (int)vNodes.size()));
obj.push_back(Pair("proxy", (fUseProxy ? addrProxy.ToStringIPPort() : string())));
obj.push_back(Pair("generate", (bool)fGenerateBitcoins));
obj.push_back(Pair("genproclimit", (int)(fLimitProcessors ? nLimitProcessors : -1)));
obj.push_back(Pair("difficulty", (double)GetDifficulty()));
obj.push_back(Pair("hashespersec", gethashespersec(params, false)));
return obj;
}
Value getnewaddress(const Array& params, bool fHelp)
{
if (fHelp || params.size() > 1)
throw runtime_error(
"getnewaddress [label]\n"
"Returns a new bitcoin address for receiving payments. "
"If [label] is specified (recommended), it is added to the address book "
"so payments received with the address will be labeled.");
// Parse the label first so we don't generate a key if there's an error
string strLabel;
if (params.size() > 0)
strLabel = params[0].get_str();
// Generate a new key that is added to wallet
string strAddress = PubKeyToAddress(GenerateNewKey());
SetAddressBookName(strAddress, strLabel);
return strAddress;
}
Value setlabel(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 1 || params.size() > 2)
throw runtime_error(
"setlabel <bitcoinaddress> <label>\n"
"Sets the label associated with the given address.");
string strAddress = params[0].get_str();
string strLabel;
if (params.size() > 1)
strLabel = params[1].get_str();
SetAddressBookName(strAddress, strLabel);
return Value::null;
}
Value getlabel(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 1)
throw runtime_error(
"getlabel <bitcoinaddress>\n"
"Returns the label associated with the given address.");
string strAddress = params[0].get_str();
string strLabel;
CRITICAL_BLOCK(cs_mapAddressBook)
{
map<string, string>::iterator mi = mapAddressBook.find(strAddress);
if (mi != mapAddressBook.end() && !(*mi).second.empty())
strLabel = (*mi).second;
}
return strLabel;
}
Value getaddressesbylabel(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 1)
throw runtime_error(
"getaddressesbylabel <label>\n"
"Returns the list of addresses with the given label.");
string strLabel = params[0].get_str();
// Find all addresses that have the given label
Array ret;
CRITICAL_BLOCK(cs_mapAddressBook)
{
foreach(const PAIRTYPE(string, string)& item, mapAddressBook)
{
const string& strAddress = item.first;
const string& strName = item.second;
if (strName == strLabel)
{
// We're only adding valid bitcoin addresses and not ip addresses
CScript scriptPubKey;
if (scriptPubKey.SetBitcoinAddress(strAddress))
ret.push_back(strAddress);
}
}
}
return ret;
}
Value sendtoaddress(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 2 || params.size() > 4)
throw runtime_error(
"sendtoaddress <bitcoinaddress> <amount> [comment] [comment-to]\n"
"<amount> is a real and is rounded to the nearest 0.01");
string strAddress = params[0].get_str();
// Amount
if (params[1].get_real() <= 0.0 || params[1].get_real() > 21000000.0)
throw runtime_error("Invalid amount");
int64 nAmount = roundint64(params[1].get_real() * 100.00) * CENT;
// Wallet comments
CWalletTx wtx;
if (params.size() > 2 && params[2].type() != null_type && !params[2].get_str().empty())
wtx.mapValue["message"] = params[2].get_str();
if (params.size() > 3 && params[3].type() != null_type && !params[3].get_str().empty())
wtx.mapValue["to"] = params[3].get_str();
string strError = SendMoneyToBitcoinAddress(strAddress, nAmount, wtx);
if (strError != "")
throw runtime_error(strError);
return "sent";
}
Value listtransactions(const Array& params, bool fHelp)
{
if (fHelp || params.size() > 2)
throw runtime_error(
"listtransactions [count=10] [includegenerated=false]\n"
"Returns up to [count] most recent transactions.");
int64 nCount = 10;
if (params.size() > 0)
nCount = params[0].get_int64();
bool fGenerated = false;
if (params.size() > 1)
fGenerated = params[1].get_bool();
Array ret;
//// not finished
ret.push_back("not implemented yet");
return ret;
}
Value getreceivedbyaddress(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 1 || params.size() > 2)
throw runtime_error(
"getreceivedbyaddress <bitcoinaddress> [minconf=1]\n"
"Returns the total amount received by <bitcoinaddress> in transactions with at least [minconf] confirmations.");
// Bitcoin address
string strAddress = params[0].get_str();
CScript scriptPubKey;
if (!scriptPubKey.SetBitcoinAddress(strAddress))
throw runtime_error("Invalid bitcoin address");
if (!IsMine(scriptPubKey))
return (double)0.0;
// Minimum confirmations
int nMinDepth = 1;
if (params.size() > 1)
nMinDepth = params[1].get_int();
// Tally
int64 nAmount = 0;
CRITICAL_BLOCK(cs_mapWallet)
{
for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
{
const CWalletTx& wtx = (*it).second;
if (wtx.IsCoinBase() || !wtx.IsFinal())
continue;
foreach(const CTxOut& txout, wtx.vout)
if (txout.scriptPubKey == scriptPubKey)
if (wtx.GetDepthInMainChain() >= nMinDepth)
nAmount += txout.nValue;
}
}
return (double)nAmount / (double)COIN;
}
Value getreceivedbylabel(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 1 || params.size() > 2)
throw runtime_error(
"getreceivedbylabel <label> [minconf=1]\n"
"Returns the total amount received by addresses with <label> in transactions with at least [minconf] confirmations.");
// Get the set of pub keys that have the label
string strLabel = params[0].get_str();
set<CScript> setPubKey;
CRITICAL_BLOCK(cs_mapAddressBook)
{
foreach(const PAIRTYPE(string, string)& item, mapAddressBook)
{
const string& strAddress = item.first;
const string& strName = item.second;
if (strName == strLabel)
{
// We're only counting our own valid bitcoin addresses and not ip addresses
CScript scriptPubKey;
if (scriptPubKey.SetBitcoinAddress(strAddress))
if (IsMine(scriptPubKey))
setPubKey.insert(scriptPubKey);
}
}
}
// Minimum confirmations
int nMinDepth = 1;
if (params.size() > 1)
nMinDepth = params[1].get_int();
// Tally
int64 nAmount = 0;
CRITICAL_BLOCK(cs_mapWallet)
{
for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
{
const CWalletTx& wtx = (*it).second;
if (wtx.IsCoinBase() || !wtx.IsFinal())
continue;
foreach(const CTxOut& txout, wtx.vout)
if (setPubKey.count(txout.scriptPubKey))
if (wtx.GetDepthInMainChain() >= nMinDepth)
nAmount += txout.nValue;
}
}
return (double)nAmount / (double)COIN;
}
struct tallyitem
{
int64 nAmount;
int nConf;
tallyitem()
{
nAmount = 0;
nConf = INT_MAX;
}
};
Value ListReceived(const Array& params, bool fByLabels)
{
// Minimum confirmations
int nMinDepth = 1;
if (params.size() > 0)
nMinDepth = params[0].get_int();
// Whether to include empty accounts
bool fIncludeEmpty = false;
if (params.size() > 1)
fIncludeEmpty = params[1].get_bool();
// Tally
map<uint160, tallyitem> mapTally;
CRITICAL_BLOCK(cs_mapWallet)
{
for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
{
const CWalletTx& wtx = (*it).second;
if (wtx.IsCoinBase() || !wtx.IsFinal())
continue;
int nDepth = wtx.GetDepthInMainChain();
if (nDepth < nMinDepth)
continue;
foreach(const CTxOut& txout, wtx.vout)
{
// Only counting our own bitcoin addresses and not ip addresses
uint160 hash160 = txout.scriptPubKey.GetBitcoinAddressHash160();
if (hash160 == 0 || !mapPubKeys.count(hash160)) // IsMine
continue;
tallyitem& item = mapTally[hash160];
item.nAmount += txout.nValue;
item.nConf = min(item.nConf, nDepth);
}
}
}
// Reply
Array ret;
map<string, tallyitem> mapLabelTally;
CRITICAL_BLOCK(cs_mapAddressBook)
{
foreach(const PAIRTYPE(string, string)& item, mapAddressBook)
{
const string& strAddress = item.first;
const string& strLabel = item.second;
uint160 hash160;
if (!AddressToHash160(strAddress, hash160))
continue;
map<uint160, tallyitem>::iterator it = mapTally.find(hash160);
if (it == mapTally.end() && !fIncludeEmpty)
continue;
int64 nAmount = 0;
int nConf = INT_MAX;
if (it != mapTally.end())
{
nAmount = (*it).second.nAmount;
nConf = (*it).second.nConf;
}
if (fByLabels)
{
tallyitem& item = mapLabelTally[strLabel];
item.nAmount += nAmount;
item.nConf = min(item.nConf, nConf);
}
else
{
Object obj;
obj.push_back(Pair("address", strAddress));
obj.push_back(Pair("label", strLabel));
obj.push_back(Pair("amount", (double)nAmount / (double)COIN));
obj.push_back(Pair("confirmations", (nConf == INT_MAX ? 0 : nConf)));
ret.push_back(obj);
}
}
}
if (fByLabels)
{
for (map<string, tallyitem>::iterator it = mapLabelTally.begin(); it != mapLabelTally.end(); ++it)
{
int64 nAmount = (*it).second.nAmount;
int nConf = (*it).second.nConf;
Object obj;
obj.push_back(Pair("label", (*it).first));
obj.push_back(Pair("amount", (double)nAmount / (double)COIN));
obj.push_back(Pair("confirmations", (nConf == INT_MAX ? 0 : nConf)));
ret.push_back(obj);
}
}
return ret;
}
Value listreceivedbyaddress(const Array& params, bool fHelp)
{
if (fHelp || params.size() > 2)
throw runtime_error(
"listreceivedbyaddress [minconf=1] [includeempty=false]\n"
"[minconf] is the minimum number of confirmations before payments are included.\n"
"[includeempty] whether to include addresses that haven't received any payments.\n"
"Returns an array of objects containing:\n"
" \"address\" : receiving address\n"
" \"label\" : the label of the receiving address\n"
" \"amount\" : total amount received by the address\n"
" \"confirmations\" : number of confirmations of the most recent transaction included");
return ListReceived(params, false);
}
Value listreceivedbylabel(const Array& params, bool fHelp)
{
if (fHelp || params.size() > 2)
throw runtime_error(
"listreceivedbylabel [minconf=1] [includeempty=false]\n"
"[minconf] is the minimum number of confirmations before payments are included.\n"
"[includeempty] whether to include labels that haven't received any payments.\n"
"Returns an array of objects containing:\n"
" \"label\" : the label of the receiving addresses\n"
" \"amount\" : total amount received by addresses with this label\n"
" \"confirmations\" : number of confirmations of the most recent transaction included");
return ListReceived(params, true);
}
//
// Call Table
//
pair<string, rpcfn_type> pCallTable[] =
{
make_pair("help", &help),
make_pair("stop", &stop),
make_pair("getblockcount", &getblockcount),
make_pair("getblocknumber", &getblocknumber),
make_pair("getconnectioncount", &getconnectioncount),
make_pair("getdifficulty", &getdifficulty),
make_pair("getbalance", &getbalance),
make_pair("getgenerate", &getgenerate),
make_pair("setgenerate", &setgenerate),
make_pair("gethashespersec", &gethashespersec),
make_pair("getinfo", &getinfo),
make_pair("getnewaddress", &getnewaddress),
make_pair("setlabel", &setlabel),
make_pair("getlabel", &getlabel),
make_pair("getaddressesbylabel", &getaddressesbylabel),
make_pair("sendtoaddress", &sendtoaddress),
make_pair("getamountreceived", &getreceivedbyaddress), // deprecated, renamed to getreceivedbyaddress
make_pair("getallreceived", &listreceivedbyaddress), // deprecated, renamed to listreceivedbyaddress
make_pair("getreceivedbyaddress", &getreceivedbyaddress),
make_pair("getreceivedbylabel", &getreceivedbylabel),
make_pair("listreceivedbyaddress", &listreceivedbyaddress),
make_pair("listreceivedbylabel", &listreceivedbylabel),
};
map<string, rpcfn_type> mapCallTable(pCallTable, pCallTable + sizeof(pCallTable)/sizeof(pCallTable[0]));
//
// HTTP protocol
//
// This ain't Apache. We're just using HTTP header for the length field
// and to be compatible with other JSON-RPC implementations.
//
string HTTPPost(const string& strMsg, const map<string,string>& mapRequestHeaders)
{
ostringstream s;
s << "POST / HTTP/1.1\r\n"
<< "User-Agent: json-rpc/1.0\r\n"
<< "Host: 127.0.0.1\r\n"
<< "Content-Type: application/json\r\n"
<< "Content-Length: " << strMsg.size() << "\r\n"
<< "Accept: application/json\r\n";
for (map<string,string>::const_iterator it = mapRequestHeaders.begin(); it != mapRequestHeaders.end(); ++it)
s << it->first << ": " << it->second << "\r\n";
s << "\r\n" << strMsg;
return s.str();
}
string HTTPReply(const string& strMsg, int nStatus=200)
{
if (nStatus == 401)
return "HTTP/1.0 401 Authorization Required\r\n"
"Server: HTTPd/1.0\r\n"
"Date: Sat, 08 Jul 2006 12:04:08 GMT\r\n"
"WWW-Authenticate: Basic realm=\"jsonrpc\"\r\n"
"Content-Type: text/html\r\n"
"Content-Length: 311\r\n"
"\r\n"
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"\r\n"
"\"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd\">\r\n"
"<HTML>\r\n"
"<HEAD>\r\n"
"<TITLE>Error</TITLE>\r\n"
"<META HTTP-EQUIV='Content-Type' CONTENT='text/html; charset=ISO-8859-1'>\r\n"
"</HEAD>\r\n"
"<BODY><H1>401 Unauthorized.</H1></BODY>\r\n"
"</HTML>\r\n";
string strStatus;
if (nStatus == 200) strStatus = "OK";
if (nStatus == 500) strStatus = "Internal Server Error";
return strprintf(
"HTTP/1.1 %d %s\r\n"
"Connection: close\r\n"
"Content-Length: %d\r\n"
"Content-Type: application/json\r\n"
"Date: Sat, 08 Jul 2006 12:04:08 GMT\r\n"
"Server: json-rpc/1.0\r\n"
"\r\n"
"%s",
nStatus,
strStatus.c_str(),
strMsg.size(),
strMsg.c_str());
}
int ReadHTTPStatus(tcp::iostream& stream)
{
string str;
getline(stream, str);
vector<string> vWords;
boost::split(vWords, str, boost::is_any_of(" "));
int nStatus = atoi(vWords[1].c_str());
return nStatus;
}
int ReadHTTPHeader(tcp::iostream& stream, map<string, string>& mapHeadersRet)
{
int nLen = 0;
loop
{
string str;
std::getline(stream, str);
if (str.empty() || str == "\r")
break;
string::size_type nColon = str.find(":");
if (nColon != string::npos)
{
string strHeader = str.substr(0, nColon);
boost::trim(strHeader);
string strValue = str.substr(nColon+1);
boost::trim(strValue);
mapHeadersRet[strHeader] = strValue;
if (strHeader == "Content-Length")
nLen = atoi(strValue.c_str());
}
}
return nLen;
}
int ReadHTTP(tcp::iostream& stream, map<string, string>& mapHeadersRet, string& strMessageRet)
{
mapHeadersRet.clear();
strMessageRet = "";
// Read status
int nStatus = ReadHTTPStatus(stream);
// Read header
int nLen = ReadHTTPHeader(stream, mapHeadersRet);
if (nLen <= 0)
return 500;
// Read message
vector<char> vch(nLen);
stream.read(&vch[0], nLen);
strMessageRet = string(vch.begin(), vch.end());
return nStatus;
}
string EncodeBase64(string s)
{
BIO *b64, *bmem;
BUF_MEM *bptr;
b64 = BIO_new(BIO_f_base64());
BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
bmem = BIO_new(BIO_s_mem());
b64 = BIO_push(b64, bmem);
BIO_write(b64, s.c_str(), s.size());
BIO_flush(b64);
BIO_get_mem_ptr(b64, &bptr);
string result(bptr->data, bptr->length);
BIO_free_all(b64);
return result;
}
string DecodeBase64(string s)
{
BIO *b64, *bmem;
char* buffer = static_cast<char*>(calloc(s.size(), sizeof(char)));
b64 = BIO_new(BIO_f_base64());
BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
bmem = BIO_new_mem_buf(const_cast<char*>(s.c_str()), s.size());
bmem = BIO_push(b64, bmem);
BIO_read(bmem, buffer, s.size());
BIO_free_all(bmem);
string result(buffer);
free(buffer);
return result;
}
bool HTTPAuthorized(map<string, string>& mapHeaders)
{
string strAuth = mapHeaders["Authorization"];
if (strAuth.substr(0,6) != "Basic ")
return false;
string strUserPass64 = strAuth.substr(6); boost::trim(strUserPass64);
string strUserPass = DecodeBase64(strUserPass64);
string::size_type nColon = strUserPass.find(":");
if (nColon == string::npos)
return false;
string strUser = strUserPass.substr(0, nColon);
string strPassword = strUserPass.substr(nColon+1);
return (strUser == mapArgs["-rpcuser"] && strPassword == mapArgs["-rpcpassword"]);
}
//
// JSON-RPC protocol
//
// http://json-rpc.org/wiki/specification
// http://www.codeproject.com/KB/recipes/JSON_Spirit.aspx
//
string JSONRPCRequest(const string& strMethod, const Array& params, const Value& id)
{
Object request;
request.push_back(Pair("method", strMethod));
request.push_back(Pair("params", params));
request.push_back(Pair("id", id));
return write_string(Value(request), false) + "\n";
}
string JSONRPCReply(const Value& result, const Value& error, const Value& id)
{
Object reply;
if (error.type() != null_type)
reply.push_back(Pair("result", Value::null));
else
reply.push_back(Pair("result", result));
reply.push_back(Pair("error", error));
reply.push_back(Pair("id", id));
return write_string(Value(reply), false) + "\n";
}
void ThreadRPCServer(void* parg)
{
IMPLEMENT_RANDOMIZE_STACK(ThreadRPCServer(parg));
try
{
vnThreadsRunning[4]++;
ThreadRPCServer2(parg);
vnThreadsRunning[4]--;
}
catch (std::exception& e) {
vnThreadsRunning[4]--;
PrintException(&e, "ThreadRPCServer()");
} catch (...) {
vnThreadsRunning[4]--;
PrintException(NULL, "ThreadRPCServer()");
}
printf("ThreadRPCServer exiting\n");
}
void ThreadRPCServer2(void* parg)
{
printf("ThreadRPCServer started\n");
if (mapArgs["-rpcuser"] == "" && mapArgs["-rpcpassword"] == "")
{
string strWhatAmI = "To use bitcoind";
if (mapArgs.count("-server"))
strWhatAmI = strprintf(_("To use the %s option"), "\"-server\"");
else if (mapArgs.count("-daemon"))
strWhatAmI = strprintf(_("To use the %s option"), "\"-daemon\"");
PrintConsole(
_("Warning: %s, you must set rpcpassword=<password>\nin the configuration file: %s\n"
"If the file does not exist, create it with owner-readable-only file permissions.\n"),
strWhatAmI.c_str(),
GetConfigFile().c_str());
CreateThread(Shutdown, NULL);
return;
}
// Bind to loopback 127.0.0.1 so the socket can only be accessed locally
boost::asio::io_service io_service;
tcp::endpoint endpoint(boost::asio::ip::address_v4::loopback(), 8332);
tcp::acceptor acceptor(io_service, endpoint);
loop
{
// Accept connection
tcp::iostream stream;
tcp::endpoint peer;
vnThreadsRunning[4]--;
acceptor.accept(*stream.rdbuf(), peer);
vnThreadsRunning[4]++;
if (fShutdown)
return;
// Shouldn't be possible for anyone else to connect, but just in case
if (peer.address().to_string() != "127.0.0.1")
continue;
// Receive request
map<string, string> mapHeaders;
string strRequest;
ReadHTTP(stream, mapHeaders, strRequest);
// Check authorization
if (mapHeaders.count("Authorization") == 0)
{
stream << HTTPReply("", 401) << std::flush;
continue;
}
if (!HTTPAuthorized(mapHeaders))
{
// Deter brute-forcing short passwords
if (mapArgs["-rpcpassword"].size() < 15)
Sleep(50);
stream << HTTPReply("", 401) << std::flush;
printf("ThreadRPCServer incorrect password attempt\n");
continue;
}
// Handle multiple invocations per request
string::iterator begin = strRequest.begin();
while (skipspaces(begin), begin != strRequest.end())
{
string::iterator prev = begin;
Value id;
try
{
// Parse request
Value valRequest;
if (!read_range(begin, strRequest.end(), valRequest))
throw runtime_error("Parse error.");
const Object& request = valRequest.get_obj();
if (find_value(request, "method").type() != str_type ||
find_value(request, "params").type() != array_type)
throw runtime_error("Invalid request.");
string strMethod = find_value(request, "method").get_str();
const Array& params = find_value(request, "params").get_array();
id = find_value(request, "id");
printf("ThreadRPCServer method=%s\n", strMethod.c_str());
// Observe lockdown
if (IsLockdown() && strMethod != "help" && strMethod != "stop" && strMethod != "getgenerate" && strMethod != "setgenerate")
throw runtime_error("WARNING: Displayed transactions may not be correct! You may need to upgrade.");
// Execute
map<string, rpcfn_type>::iterator mi = mapCallTable.find(strMethod);
if (mi == mapCallTable.end())
throw runtime_error("Method not found.");
Value result = (*(*mi).second)(params, false);
// Send reply
string strReply = JSONRPCReply(result, Value::null, id);
stream << HTTPReply(strReply, 200) << std::flush;
}
catch (std::exception& e)
{
// Send error reply
string strReply = JSONRPCReply(Value::null, e.what(), id);
stream << HTTPReply(strReply, 500) << std::flush;
}
if (begin == prev)
break;
}
}
}
Value CallRPC(const string& strMethod, const Array& params)
{
if (mapArgs["-rpcuser"] == "" && mapArgs["-rpcpassword"] == "")
throw runtime_error(strprintf(
_("You must set rpcpassword=<password> in the configuration file:\n%s\n"
"If the file does not exist, create it with owner-readable-only file permissions."),
GetConfigFile().c_str()));
// Connect to localhost
tcp::iostream stream("127.0.0.1", "8332");
if (stream.fail())
throw runtime_error("couldn't connect to server");
// HTTP basic authentication
string strUserPass64 = EncodeBase64(mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"]);
map<string, string> mapRequestHeaders;
mapRequestHeaders["Authorization"] = string("Basic ") + strUserPass64;
// Send request
string strRequest = JSONRPCRequest(strMethod, params, 1);
string strPost = HTTPPost(strRequest, mapRequestHeaders);
stream << strPost << std::flush;
// Receive reply
map<string, string> mapHeaders;
string strReply;
int nStatus = ReadHTTP(stream, mapHeaders, strReply);
if (nStatus == 401)
throw runtime_error("incorrect rpcuser or rpcpassword (authorization failed)");
else if (nStatus >= 400 && nStatus != 500)
throw runtime_error(strprintf("server returned HTTP error %d", nStatus));
else if (strReply.empty())
throw runtime_error("no response from server");
// Parse reply
Value valReply;
if (!read_string(strReply, valReply))
throw runtime_error("couldn't parse reply from server");
const Object& reply = valReply.get_obj();
if (reply.empty())
throw runtime_error("expected reply to have result, error and id properties");
const Value& result = find_value(reply, "result");
const Value& error = find_value(reply, "error");
const Value& id = find_value(reply, "id");
if (error.type() == str_type)
throw runtime_error(error.get_str());
else if (error.type() != null_type)
throw runtime_error(write_string(error, false));
return result;
}
template<typename T>
void ConvertTo(Value& value)
{
if (value.type() == str_type)
{
// reinterpret string as unquoted json value
Value value2;
if (!read_string(value.get_str(), value2))
throw runtime_error("type mismatch");
value = value2.get_value<T>();
}
else
{
value = value.get_value<T>();
}
}
int CommandLineRPC(int argc, char *argv[])
{
try
{
// Skip switches
while (argc > 1 && IsSwitchChar(argv[1][0]))
{
argc--;
argv++;
}
// Method
if (argc < 2)
throw runtime_error("too few parameters");
string strMethod = argv[1];
// Parameters default to strings
Array params;
for (int i = 2; i < argc; i++)
params.push_back(argv[i]);
int n = params.size();
//
// Special case non-string parameter types
//
if (strMethod == "setgenerate" && n > 0) ConvertTo<bool>(params[0]);
if (strMethod == "setgenerate" && n > 1) ConvertTo<boost::int64_t>(params[1]);
if (strMethod == "sendtoaddress" && n > 1) ConvertTo<double>(params[1]);
if (strMethod == "listtransactions" && n > 0) ConvertTo<boost::int64_t>(params[0]);
if (strMethod == "listtransactions" && n > 1) ConvertTo<bool>(params[1]);
if (strMethod == "getamountreceived" && n > 1) ConvertTo<boost::int64_t>(params[1]); // deprecated
if (strMethod == "getreceivedbyaddress" && n > 1) ConvertTo<boost::int64_t>(params[1]);
if (strMethod == "getreceivedbylabel" && n > 1) ConvertTo<boost::int64_t>(params[1]);
if (strMethod == "getallreceived" && n > 0) ConvertTo<boost::int64_t>(params[0]); // deprecated
if (strMethod == "getallreceived" && n > 1) ConvertTo<bool>(params[1]);
if (strMethod == "listreceivedbyaddress" && n > 0) ConvertTo<boost::int64_t>(params[0]);
if (strMethod == "listreceivedbyaddress" && n > 1) ConvertTo<bool>(params[1]);
if (strMethod == "listreceivedbylabel" && n > 0) ConvertTo<boost::int64_t>(params[0]);
if (strMethod == "listreceivedbylabel" && n > 1) ConvertTo<bool>(params[1]);
// Execute
Value result = CallRPC(strMethod, params);
// Print result
string strResult = (result.type() == str_type ? result.get_str() : write_string(result, true));
if (result.type() != null_type)
{
#if defined(__WXMSW__) && defined(GUI)
// Windows GUI apps can't print to command line,
// so settle for a message box yuck
MyMessageBox(strResult.c_str(), "Bitcoin", wxOK);
#else
fprintf(stdout, "%s\n", strResult.c_str());
#endif
}
return 0;
}
catch (std::exception& e) {
#if defined(__WXMSW__) && defined(GUI)
MyMessageBox(strprintf("error: %s\n", e.what()).c_str(), "Bitcoin", wxOK);
#else
fprintf(stderr, "error: %s\n", e.what());
#endif
} catch (...) {
PrintException(NULL, "CommandLineRPC()");
}
return 1;
}
#ifdef TEST
int main(int argc, char *argv[])
{
#ifdef _MSC_VER
// Turn off microsoft heap dump noise
_CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE);
_CrtSetReportFile(_CRT_WARN, CreateFile("NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0));
#endif
setbuf(stdin, NULL);
setbuf(stdout, NULL);
setbuf(stderr, NULL);
try
{
if (argc >= 2 && string(argv[1]) == "-server")
{
printf("server ready\n");
ThreadRPCServer(NULL);
}
else
{
return CommandLineRPC(argc, argv);
}
}
catch (std::exception& e) {
PrintException(&e, "main()");
} catch (...) {
PrintException(NULL, "main()");
}
return 0;
}
#endif