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// 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 <boost/filesystem/operations.hpp>
using namespace std;
using namespace json_spirit;
std::string HelpMessageCli()
{
string strUsage;
strUsage += HelpMessageGroup(_("Options:"));
strUsage += HelpMessageOpt("-?", _("This help message"));
strUsage += HelpMessageOpt("-conf=<file>", strprintf(_("Specify configuration file (default: %s)"), "bitcoin.conf"));
strUsage += HelpMessageOpt("-datadir=<dir>", _("Specify data directory"));
strUsage += HelpMessageOpt("-testnet", _("Use the test network"));
strUsage += HelpMessageOpt("-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."));
strUsage += HelpMessageOpt("-rpcconnect=<ip>", strprintf(_("Send commands to node running on <ip> (default: %s)"), "127.0.0.1"));
strUsage += HelpMessageOpt("-rpcport=<port>", strprintf(_("Connect to JSON-RPC on <port> (default: %u or testnet: %u)"), 8332, 18332));
strUsage += HelpMessageOpt("-rpcwait", _("Wait for RPC server to start"));
strUsage += HelpMessageOpt("-rpcuser=<user>", _("Username for JSON-RPC connections"));
strUsage += HelpMessageOpt("-rpcpassword=<pw>", _("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] <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);
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<boost::asio::ip::tcp::socket> sslStream(io_service, context);
SSLIOStreamDevice<boost::asio::ip::tcp> d(sslStream, fUseSSL);
boost::iostreams::stream< SSLIOStreamDevice<boost::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(UniValue::VSTR);
if (!valReply.read(strReply))
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 {
// Execute
Object reply = CallRPC(strMethod, params);
// Parse reply
const Value& result = find_value(reply, "result");
const Value& error = find_value(reply, "error");
if (!error.isNull()) {
// Error
strPrint = "error: " + error.write();
int code = error["code"].get_int();
nRet = abs(code);
} 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;
}
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