// Copyright (c) 2009-2010 Satoshi Nakamoto // Copyright (c) 2009-2013 The Bitcoin 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 #define _(x) std::string(x) /* Keep the _() around in case gettext or such will be used later to translate non-UI */ using namespace std; using namespace boost; using namespace boost::asio; using namespace json_spirit; std::string HelpMessageCli() { string strUsage; strUsage += _("Options:") + "\n"; strUsage += " -? " + _("This help message") + "\n"; strUsage += " -conf= " + strprintf(_("Specify configuration file (default: %s)"), "bitcoin.conf") + "\n"; strUsage += " -datadir= " + _("Specify data directory") + "\n"; strUsage += " -testnet " + _("Use the test network") + "\n"; strUsage += " -regtest " + _("Enter regression test mode, which uses a special chain in which blocks can be " "solved instantly. This is intended for regression testing tools and app development.") + "\n"; strUsage += " -rpcconnect= " + strprintf(_("Send commands to node running on (default: %s)"), "127.0.0.1") + "\n"; strUsage += " -rpcport= " + strprintf(_("Connect to JSON-RPC on (default: %u or testnet: %u)"), 8332, 18332) + "\n"; strUsage += " -rpcwait " + _("Wait for RPC server to start") + "\n"; strUsage += " -rpcuser= " + _("Username for JSON-RPC connections") + "\n"; strUsage += " -rpcpassword= " + _("Password for JSON-RPC connections") + "\n"; strUsage += "\n" + _("SSL options: (see the Bitcoin Wiki for SSL setup instructions)") + "\n"; strUsage += " -rpcssl " + _("Use OpenSSL (https) for JSON-RPC connections") + "\n"; 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(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) if (!SelectBaseParamsFromCommandLine()) { fprintf(stderr, "Error: Invalid combination of -regtest and -testnet.\n"); return false; } return true; } Object CallRPC(const string& strMethod, const Array& params) { if (mapArgs["-rpcuser"] == "" && mapArgs["-rpcpassword"] == "") 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())); // Connect to localhost bool fUseSSL = GetBoolArg("-rpcssl", false); asio::io_service io_service; ssl::context context(io_service, ssl::context::sslv23); context.set_options(ssl::context::no_sslv2 | ssl::context::no_sslv3); asio::ssl::stream sslStream(io_service, context); SSLIOStreamDevice d(sslStream, fUseSSL); 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"); // HTTP basic authentication string strUserPass64 = EncodeBase64(mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"]); map mapRequestHeaders; mapRequestHeaders["Authorization"] = string("Basic ") + strUserPass64; // 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 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"); 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]); Array params = RPCConvertValues(strMethod, strParams); // Execute and handle connection failures with -rpcwait const bool fWait = GetBoolArg("-rpcwait", false); do { try { const Object reply = CallRPC(strMethod, params); // Parse reply const Value& result = find_value(reply, "result"); const Value& error = find_value(reply, "error"); if (error.type() != null_type) { // Error const int code = find_value(error.get_obj(), "code").get_int(); if (fWait && code == RPC_IN_WARMUP) throw CConnectionFailed("server in warmup"); strPrint = "error: " + write_string(error, false); nRet = abs(code); } else { // Result if (result.type() == null_type) strPrint = ""; else if (result.type() == str_type) strPrint = result.get_str(); else strPrint = write_string(result, true); } // Connection succeeded, no need to retry. break; } catch (const CConnectionFailed& e) { if (fWait) MilliSleep(1000); else throw; } } while (fWait); } catch (boost::thread_interrupted) { throw; } catch (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 (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 (std::exception& e) { PrintExceptionContinue(&e, "CommandLineRPC()"); } catch (...) { PrintExceptionContinue(NULL, "CommandLineRPC()"); } return ret; }