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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2013 The Bitcoin developers
// Distributed under the MIT/X11 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 <boost/filesystem/operations.hpp>
#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=<file> " + strprintf(_("Specify configuration file (default: %s)"), "bitcoin.conf") + "\n";
strUsage += " -datadir=<dir> " + _("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=<ip> " + strprintf(_("Send commands to node running on <ip> (default: %s)"), "127.0.0.1") + "\n";
strUsage += " -rpcport=<port> " + strprintf(_("Connect to JSON-RPC on <port> (default: %u or testnet: %u)"), 8332, 18332) + "\n";
strUsage += " -rpcwait " + _("Wait for RPC server to start") + "\n";
strUsage += " -rpcuser=<user> " + _("Username for JSON-RPC connections") + "\n";
strUsage += " -rpcpassword=<pw> " + _("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] <command> [params] " + _("Send command to Bitcoin Core") + "\n" +
" bitcoin-cli [options] help " + _("List commands") + "\n" +
" bitcoin-cli [options] help <command> " + _("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)
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=<password> 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<asio::ip::tcp::socket> sslStream(io_service, context);
SSLIOStreamDevice<asio::ip::tcp> d(sslStream, fUseSSL);
iostreams::stream< SSLIOStreamDevice<asio::ip::tcp> > 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<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 HTTP reply status
int nProto = 0;
int nStatus = ReadHTTPStatus(stream, nProto);
// Receive HTTP reply message headers and body
map<string, string> mapHeaders;
string strReply;
ReadHTTPMessage(stream, mapHeaders, strReply, nProto, std::numeric_limits<size_t>::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<std::string> 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&) {
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;
}