// 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 #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); /// /// Note: I'm not finished designing this interface, it's still subject to change. /// Value stop(const Array& params) { if (params.size() != 0) throw runtime_error( "stop (no parameters)\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) { if (params.size() != 0) throw runtime_error( "getblockcount (no parameters)\n" "Returns the number of blocks in the longest block chain."); return nBestHeight + 1; } Value getblocknumber(const Array& params) { if (params.size() != 0) throw runtime_error( "getblocknumber (no parameters)\n" "Returns the block number of the latest block in the longest block chain."); return nBestHeight; } Value getdifficulty(const Array& params) { if (params.size() != 0) throw runtime_error( "getdifficulty (no parameters)\n" "Returns the proof-of-work difficulty as a multiple of the minimum difficulty."); if (pindexBest == NULL) throw runtime_error("block chain not loaded"); // Floating point number that is a multiple of the minimum difficulty, // minimum difficulty = 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 getnewaddress(const Array& params) { if (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()); if (params.size() > 0) SetAddressBookName(strAddress, strLabel); return strAddress; } Value sendtoaddress(const Array& params) { if (params.size() < 2 || params.size() > 4) throw runtime_error( "sendtoaddress [comment] [comment-to]\n" " 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) { if (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 getamountpaid(const Array& params) { if (params.size() < 1 || params.size() > 2) throw runtime_error( "getamountpaid [minconf=1]\n" "Returns the total amount paid to 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"); // Minimum confirmations int nMinDepth = 1; if (params.size() > 1) nMinDepth = params[1].get_int(); // Tally int64 nAmount = 0; CRITICAL_BLOCK(cs_mapWallet) { for (map::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; } struct tallyitem { int64 nAmount; int nConf; tallyitem() { nAmount = 0; nConf = INT_MAX; } }; Value getallpayments(const Array& params) { if (params.size() > 1) throw runtime_error( "getallpayments [minconf=1]\n" "[minconf] is the minimum number of confirmations before payments are included.\n" "Returns an array of objects containing:\n" " \"address\" : bitcoin address\n" " \"amount\" : total amount paid to the address\n" " \"conf\" : number of confirmations\n" " \"label\" : the label set for this address when it was created by getnewaddress"); // Minimum confirmations int nMinDepth = 1; if (params.size() > 0) nMinDepth = params[0].get_int(); // Tally map mapTally; CRITICAL_BLOCK(cs_mapWallet) { for (map::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) { foreach(const CTxOut& txout, wtx.vout) { uint160 hash160 = txout.scriptPubKey.GetBitcoinAddressHash160(); if (hash160 == 0 || !mapPubKeys.count(hash160)) continue; tallyitem& item = mapTally[hash160]; item.nAmount += txout.nValue; item.nConf = min(item.nConf, nDepth); } } } } // Reply Array ret; CRITICAL_BLOCK(cs_mapAddressBook) { for (map::iterator it = mapTally.begin(); it != mapTally.end(); ++it) { string strAddress = Hash160ToAddress((*it).first); string strLabel; map::iterator mi = mapAddressBook.find(strAddress); if (mi != mapAddressBook.end()) strLabel = (*mi).second; Object obj; obj.push_back(Pair("address", strAddress)); obj.push_back(Pair("amount", (double)(*it).second.nAmount / (double)COIN)); obj.push_back(Pair("conf", (*it).second.nConf)); obj.push_back(Pair("label", strLabel)); ret.push_back(obj); } } return ret; } // // Call Table // typedef Value(*rpcfn_type)(const Array& params); pair pCallTable[] = { make_pair("stop", &stop), make_pair("getblockcount", &getblockcount), make_pair("getblocknumber", &getblocknumber), make_pair("getdifficulty", &getdifficulty), make_pair("getnewaddress", &getnewaddress), make_pair("sendtoaddress", &sendtoaddress), make_pair("listtransactions", &listtransactions), make_pair("getamountpaid", &getamountpaid), make_pair("getallpayments", &getallpayments), }; map 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) { return strprintf( "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: %d\r\n" "Accept: application/json\r\n" "\r\n" "%s", strMsg.size(), strMsg.c_str()); } string HTTPReply(const string& strMsg, int nStatus=200) { 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 ReadHTTPHeader(tcp::iostream& stream) { int nLen = 0; loop { string str; std::getline(stream, str); if (str.empty() || str == "\r") break; if (str.substr(0,15) == "Content-Length:") nLen = atoi(str.substr(15)); } return nLen; } inline string ReadHTTP(tcp::iostream& stream) { // Read header int nLen = ReadHTTPHeader(stream); if (nLen <= 0) return string(); // Read message vector vch(nLen); stream.read(&vch[0], nLen); return string(vch.begin(), vch.end()); } // // 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"); // 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 string strRequest = ReadHTTP(stream); printf("ThreadRPCServer request=%s", strRequest.c_str()); // 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"); // Execute map::iterator mi = mapCallTable.find(strMethod); if (mi == mapCallTable.end()) throw runtime_error("Method not found."); Value result = (*(*mi).second)(params); // 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) { // Connect to localhost tcp::iostream stream("127.0.0.1", "8332"); if (stream.fail()) throw runtime_error("unable to connect to server"); // Send request string strRequest = JSONRPCRequest(strMethod, params, 1); stream << HTTPPost(strRequest) << std::flush; // Receive reply string strReply = ReadHTTP(stream); 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 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(); } else { value = value.get_value(); } } int CommandLineRPC(int argc, char *argv[]) { try { // Check that method exists if (argc < 2) throw runtime_error("too few parameters"); string strMethod = argv[1]; if (!mapCallTable.count(strMethod)) throw runtime_error(strprintf("unknown command: %s", strMethod.c_str())); // Parameters default to strings Array params; for (int i = 2; i < argc; i++) params.push_back(argv[i]); // Special case other types int n = params.size(); if (strMethod == "sendtoaddress" && n > 1) ConvertTo(params[1]); if (strMethod == "listtransactions" && n > 0) ConvertTo(params[0]); if (strMethod == "listtransactions" && n > 1) ConvertTo(params[1]); if (strMethod == "getamountpaid" && n > 1) ConvertTo(params[1]); if (strMethod == "getallpayments" && n > 0) ConvertTo(params[0]); // 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 (fWindows) // Windows GUI apps can't print to command line, // so for now settle for a message box yuck wxMessageBox(strResult.c_str(), "Bitcoin", wxOK); else fprintf(stdout, "%s\n", strResult.c_str()); } return 0; } catch (std::exception& e) { if (fWindows) wxMessageBox(strprintf("error: %s\n", e.what()).c_str(), "Bitcoin", wxOK); else fprintf(stderr, "error: %s\n", e.what()); } 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