// Copyright (c) 2009-2010 Satoshi Nakamoto // Copyright (c) 2009-2013 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "chainparamsbase.h" #include "clientversion.h" #include "rpcclient.h" #include "rpcprotocol.h" #include "util.h" #include "utilstrencodings.h" #include #include "univalue/univalue.h" using namespace std; std::string HelpMessageCli() { string strUsage; strUsage += HelpMessageGroup(_("Options:")); strUsage += HelpMessageOpt("-?", _("This help message")); strUsage += HelpMessageOpt("-conf=", strprintf(_("Specify configuration file (default: %s)"), "bitcoin.conf")); strUsage += HelpMessageOpt("-datadir=", _("Specify data directory")); AppendParamsHelpMessages(strUsage); strUsage += HelpMessageOpt("-rpcconnect=", strprintf(_("Send commands to node running on (default: %s)"), "127.0.0.1")); strUsage += HelpMessageOpt("-rpcport=", strprintf(_("Connect to JSON-RPC on (default: %u or testnet: %u)"), 8332, 18332)); strUsage += HelpMessageOpt("-rpcwait", _("Wait for RPC server to start")); strUsage += HelpMessageOpt("-rpcuser=", _("Username for JSON-RPC connections")); strUsage += HelpMessageOpt("-rpcpassword=", _("Password for JSON-RPC connections")); strUsage += HelpMessageGroup(_("SSL options: (see the Bitcoin Wiki for SSL setup instructions)")); strUsage += HelpMessageOpt("-rpcssl", _("Use OpenSSL (https) for JSON-RPC connections")); return strUsage; } ////////////////////////////////////////////////////////////////////////////// // // Start // // // Exception thrown on connection error. This error is used to determine // when to wait if -rpcwait is given. // class CConnectionFailed : public std::runtime_error { public: explicit inline CConnectionFailed(const std::string& msg) : std::runtime_error(msg) {} }; static bool AppInitRPC(int argc, char* argv[]) { // // Parameters // ParseParameters(argc, argv); if (argc<2 || mapArgs.count("-?") || mapArgs.count("-help") || mapArgs.count("-version")) { std::string strUsage = _("Bitcoin Core RPC client version") + " " + FormatFullVersion() + "\n"; if (!mapArgs.count("-version")) { strUsage += "\n" + _("Usage:") + "\n" + " bitcoin-cli [options] [params] " + _("Send command to Bitcoin Core") + "\n" + " bitcoin-cli [options] help " + _("List commands") + "\n" + " bitcoin-cli [options] help " + _("Get help for a command") + "\n"; strUsage += "\n" + HelpMessageCli(); } fprintf(stdout, "%s", strUsage.c_str()); return false; } if (!boost::filesystem::is_directory(GetDataDir(false))) { fprintf(stderr, "Error: Specified data directory \"%s\" does not exist.\n", mapArgs["-datadir"].c_str()); return false; } try { ReadConfigFile(mapArgs, mapMultiArgs); } catch (const std::exception& e) { fprintf(stderr,"Error reading configuration file: %s\n", e.what()); return false; } // Check for -testnet or -regtest parameter (BaseParams() calls are only valid after this clause) try { SelectBaseParams(ChainNameFromCommandLine()); } catch(std::exception &e) { fprintf(stderr, "Error: %s\n", e.what()); return false; } return true; } UniValue CallRPC(const string& strMethod, const UniValue& params) { // Connect to localhost bool fUseSSL = GetBoolArg("-rpcssl", false); boost::asio::io_service io_service; boost::asio::ssl::context context(io_service, boost::asio::ssl::context::sslv23); context.set_options(boost::asio::ssl::context::no_sslv2 | boost::asio::ssl::context::no_sslv3); boost::asio::ssl::stream sslStream(io_service, context); SSLIOStreamDevice d(sslStream, fUseSSL); boost::iostreams::stream< SSLIOStreamDevice > stream(d); const bool fConnected = d.connect(GetArg("-rpcconnect", "127.0.0.1"), GetArg("-rpcport", itostr(BaseParams().RPCPort()))); if (!fConnected) throw CConnectionFailed("couldn't connect to server"); // Find credentials to use std::string strRPCUserColonPass; if (mapArgs["-rpcpassword"] == "") { // Try fall back to cookie-based authentication if no password is provided if (!GetAuthCookie(&strRPCUserColonPass)) { throw runtime_error(strprintf( _("You must set rpcpassword= in the configuration file:\n%s\n" "If the file does not exist, create it with owner-readable-only file permissions."), GetConfigFile().string().c_str())); } } else { strRPCUserColonPass = mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"]; } // HTTP basic authentication map mapRequestHeaders; mapRequestHeaders["Authorization"] = string("Basic ") + EncodeBase64(strRPCUserColonPass); // Send request string strRequest = JSONRPCRequest(strMethod, params, 1); string strPost = HTTPPost(strRequest, mapRequestHeaders); stream << strPost << std::flush; // Receive HTTP reply status int nProto = 0; int nStatus = ReadHTTPStatus(stream, nProto); // Receive HTTP reply message headers and body map mapHeaders; string strReply; ReadHTTPMessage(stream, mapHeaders, strReply, nProto, std::numeric_limits::max()); if (nStatus == HTTP_UNAUTHORIZED) throw runtime_error("incorrect rpcuser or rpcpassword (authorization failed)"); else if (nStatus >= 400 && nStatus != HTTP_BAD_REQUEST && nStatus != HTTP_NOT_FOUND && nStatus != HTTP_INTERNAL_SERVER_ERROR) throw runtime_error(strprintf("server returned HTTP error %d", nStatus)); else if (strReply.empty()) throw runtime_error("no response from server"); // Parse reply UniValue valReply(UniValue::VSTR); if (!valReply.read(strReply)) throw runtime_error("couldn't parse reply from server"); const UniValue& reply = valReply.get_obj(); if (reply.empty()) throw runtime_error("expected reply to have result, error and id properties"); return reply; } int CommandLineRPC(int argc, char *argv[]) { string strPrint; int nRet = 0; 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 std::vector strParams(&argv[2], &argv[argc]); UniValue params = RPCConvertValues(strMethod, strParams); // Execute and handle connection failures with -rpcwait const bool fWait = GetBoolArg("-rpcwait", false); do { try { const UniValue reply = CallRPC(strMethod, params); // Parse reply const UniValue& result = find_value(reply, "result"); const UniValue& error = find_value(reply, "error"); if (!error.isNull()) { // Error int code = error["code"].get_int(); if (fWait && code == RPC_IN_WARMUP) throw CConnectionFailed("server in warmup"); strPrint = "error: " + error.write(); nRet = abs(code); if (error.isObject()) { UniValue errCode = find_value(error, "code"); UniValue errMsg = find_value(error, "message"); strPrint = errCode.isNull() ? "" : "error code: "+errCode.getValStr()+"\n"; if (errMsg.isStr()) strPrint += "error message:\n"+errMsg.get_str(); } } else { // Result if (result.isNull()) strPrint = ""; else if (result.isStr()) strPrint = result.get_str(); else strPrint = result.write(2); } // Connection succeeded, no need to retry. break; } catch (const CConnectionFailed&) { if (fWait) MilliSleep(1000); else throw; } } while (fWait); } catch (const boost::thread_interrupted&) { throw; } catch (const std::exception& e) { strPrint = string("error: ") + e.what(); nRet = EXIT_FAILURE; } catch (...) { PrintExceptionContinue(NULL, "CommandLineRPC()"); throw; } if (strPrint != "") { fprintf((nRet == 0 ? stdout : stderr), "%s\n", strPrint.c_str()); } return nRet; } int main(int argc, char* argv[]) { SetupEnvironment(); try { if(!AppInitRPC(argc, argv)) return EXIT_FAILURE; } catch (const std::exception& e) { PrintExceptionContinue(&e, "AppInitRPC()"); return EXIT_FAILURE; } catch (...) { PrintExceptionContinue(NULL, "AppInitRPC()"); return EXIT_FAILURE; } int ret = EXIT_FAILURE; try { ret = CommandLineRPC(argc, argv); } catch (const std::exception& e) { PrintExceptionContinue(&e, "CommandLineRPC()"); } catch (...) { PrintExceptionContinue(NULL, "CommandLineRPC()"); } return ret; }