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/*
This file is part of cpp-ethereum.
cpp-ethereum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
cpp-ethereum is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file main.cpp
* @author Gav Wood <i@gavwood.com>
* @date 2014
* Ethereum client.
*/
#include <thread>
#include <chrono>
#include <fstream>
#include <iostream>
#include <boost/algorithm/string.hpp>
#include <boost/algorithm/string/trim_all.hpp>
#include <libethsupport/FileSystem.h>
#include <libethcore/Instruction.h>
#include <libethereum/Defaults.h>
#include <libethereum/Client.h>
#include <libethereum/PeerNetwork.h>
#include <libethereum/BlockChain.h>
#include <libethereum/State.h>
#include <libethcore/CommonEth.h>
#if ETH_READLINE
#include <readline/readline.h>
#include <readline/history.h>
#endif
#if ETH_JSONRPC
#include "EthStubServer.h"
#endif
#include "BuildInfo.h"
using namespace std;
using namespace eth;
using namespace boost::algorithm;
using eth::Instruction;
using eth::c_instructionInfo;
bool isTrue(std::string const& _m)
{
return _m == "on" || _m == "yes" || _m == "true" || _m == "1";
}
bool isFalse(std::string const& _m)
{
return _m == "off" || _m == "no" || _m == "false" || _m == "0";
}
void interactiveHelp()
{
cout
<< "Commands:" << endl
<< " netstart <port> Starts the network subsystem on a specific port." << endl
<< " netstop Stops the network subsystem." << endl
<< " jsonstart <port> Starts the JSON-RPC server." << endl
<< " jsonstop Stops the JSON-RPC server." << endl
<< " connect <addr> <port> Connects to a specific peer." << endl
<< " verbosity (<level>) Gets or sets verbosity level." << endl
<< " minestart Starts mining." << endl
<< " minestop Stops mining." << endl
<< " address Gives the current address." << endl
<< " secret Gives the current secret" << endl
<< " block Gives the current block height." << endl
<< " balance Gives the current balance." << endl
<< " transact Execute a given transaction." << endl
<< " send Execute a given transaction with current secret." << endl
<< " contract Create a new contract with current secret." << endl
<< " peers List the peers that are connected" << endl
<< " listAccounts List the accounts on the network." << endl
<< " listContracts List the contracts on the network." << endl
<< " setSecret <secret> Set the secret to the hex secret key." <<endl
<< " setAddress <addr> Set the coinbase (mining payout) address." <<endl
<< " exportConfig <path> Export the config (.RLP) to the path provided." <<endl
<< " importConfig <path> Import the config (.RLP) from the path provided." <<endl
<< " inspect <contract> Dumps a contract to <APPDATA>/<contract>.evm." << endl
<< " exit Exits the application." << endl;
}
void help()
{
cout
<< "Usage eth [OPTIONS] <remote-host>" << endl
<< "Options:" << endl
<< " -a,--address <addr> Set the coinbase (mining payout) address to addr (default: auto)." << endl
<< " -c,--client-name <name> Add a name to your client's version string (default: blank)." << endl
<< " -d,--db-path <path> Load database from path (default: ~/.ethereum " << endl
<< " <APPDATA>/Etherum or Library/Application Support/Ethereum)." << endl
<< " -h,--help Show this help message and exit." << endl
<< " -i,--interactive Enter interactive mode (default: non-interactive)." << endl
#if ETH_JSONRPC
<< " -j,--json-rpc Enable JSON-RPC server (default: off)." << endl
<< " --json-rpc-port Specify JSON-RPC server port (implies '-j', default: 8080)." << endl
#endif
<< " -l,--listen <port> Listen on the given port for incoming connected (default: 30303)." << endl
<< " -m,--mining <on/off/number> Enable mining, optionally for a specified number of blocks (Default: off)" << endl
<< " -n,--upnp <on/off> Use upnp for NAT (default: on)." << endl
<< " -o,--mode <full/peer> Start a full node or a peer node (Default: full)." << endl
<< " -p,--port <port> Connect to remote port (default: 30303)." << endl
<< " -r,--remote <host> Connect to remote host (default: none)." << endl
<< " -s,--secret <secretkeyhex> Set the secret key for use with send command (default: auto)." << endl
<< " -u,--public-ip <ip> Force public ip to given (default; auto)." << endl
<< " -v,--verbosity <0 - 9> Set the log verbosity from 0 to 9 (Default: 8)." << endl
<< " -x,--peers <number> Attempt to connect to given number of peers (Default: 5)." << endl
<< " -V,--version Show the version and exit." << endl;
exit(0);
}
string credits(bool _interactive = false)
{
std::ostringstream cout;
cout
<< "Ethereum (++) " << eth::EthVersion << endl
<< " Code by Gav Wood, (c) 2013, 2014." << endl
<< " Based on a design by Vitalik Buterin." << endl << endl;
if (_interactive)
{
string vs = toString(eth::EthVersion);
vs = vs.substr(vs.find_first_of('.') + 1)[0];
int pocnumber = stoi(vs);
string m_servers;
if (pocnumber == 4)
m_servers = "54.72.31.55";
else
m_servers = "54.72.69.180";
cout << "Type 'netstart 30303' to start networking" << endl;
cout << "Type 'connect " << m_servers << " 30303' to connect" << endl;
cout << "Type 'exit' to quit" << endl << endl;
}
return cout.str();
}
void version()
{
cout << "eth version " << eth::EthVersion << endl;
cout << "Build: " << ETH_QUOTED(ETH_BUILD_PLATFORM) << "/" << ETH_QUOTED(ETH_BUILD_TYPE) << endl;
exit(0);
}
Address c_config = Address("ccdeac59d35627b7de09332e819d5159e7bb7250");
string pretty(h160 _a, eth::State _st)
{
string ns;
h256 n;
if (h160 nameReg = (u160)_st.storage(c_config, 0))
n = _st.storage(nameReg, (u160)(_a));
if (n)
{
std::string s((char const*)n.data(), 32);
if (s.find_first_of('\0') != string::npos)
s.resize(s.find_first_of('\0'));
ns = " " + s;
}
return ns;
}
bytes parse_data(string _args);
int main(int argc, char** argv)
{
unsigned short listenPort = 30303;
string remoteHost;
unsigned short remotePort = 30303;
string dbPath;
eth::uint mining = ~(eth::uint)0;
NodeMode mode = NodeMode::Full;
unsigned peers = 5;
bool interactive = false;
#if ETH_JSONRPC
int jsonrpc = 8080;
#endif
string publicIP;
bool upnp = true;
string clientName;
// Init defaults
Defaults::get();
// Our address.
KeyPair us = KeyPair::create();
Address coinbase = us.address();
string configFile = getDataDir() + "/config.rlp";
bytes b = contents(configFile);
if (b.size())
{
RLP config(b);
us = KeyPair(config[0].toHash<Secret>());
coinbase = config[1].toHash<Address>();
}
else
{
RLPStream config(2);
config << us.secret() << coinbase;
writeFile(configFile, config.out());
}
for (int i = 1; i < argc; ++i)
{
string arg = argv[i];
if ((arg == "-l" || arg == "--listen" || arg == "--listen-port") && i + 1 < argc)
listenPort = (short)atoi(argv[++i]);
else if ((arg == "-u" || arg == "--public-ip" || arg == "--public") && i + 1 < argc)
publicIP = argv[++i];
else if ((arg == "-r" || arg == "--remote") && i + 1 < argc)
remoteHost = argv[++i];
else if ((arg == "-p" || arg == "--port") && i + 1 < argc)
remotePort = (short)atoi(argv[++i]);
else if ((arg == "-n" || arg == "--upnp") && i + 1 < argc)
{
string m = argv[++i];
if (isTrue(m))
upnp = true;
else if (isFalse(m))
upnp = false;
else
{
cerr << "Invalid UPnP option: " << m << endl;
return -1;
}
}
else if ((arg == "-c" || arg == "--client-name") && i + 1 < argc)
clientName = argv[++i];
else if ((arg == "-a" || arg == "--address" || arg == "--coinbase-address") && i + 1 < argc)
coinbase = h160(fromHex(argv[++i]));
else if ((arg == "-s" || arg == "--secret") && i + 1 < argc)
us = KeyPair(h256(fromHex(argv[++i])));
else if ((arg == "-d" || arg == "--path" || arg == "--db-path") && i + 1 < argc)
dbPath = argv[++i];
else if ((arg == "-m" || arg == "--mining") && i + 1 < argc)
{
string m = argv[++i];
if (isTrue(m))
mining = ~(eth::uint)0;
else if (isFalse(m))
mining = 0;
else if (int i = stoi(m))
mining = i;
else
{
cerr << "Unknown mining option: " << m << endl;
return -1;
}
}
else if (arg == "-i" || arg == "--interactive")
interactive = true;
#if ETH_JSONRPC
else if ((arg == "-j" || arg == "--json-rpc"))
jsonrpc = jsonrpc ? jsonrpc : 8080;
else if (arg == "--json-rpc-port" && i + 1 < argc)
jsonrpc = atoi(argv[++i]);
#endif
else if ((arg == "-v" || arg == "--verbosity") && i + 1 < argc)
g_logVerbosity = atoi(argv[++i]);
else if ((arg == "-x" || arg == "--peers") && i + 1 < argc)
peers = atoi(argv[++i]);
else if ((arg == "-o" || arg == "--mode") && i + 1 < argc)
{
string m = argv[++i];
if (m == "full")
mode = NodeMode::Full;
else if (m == "peer")
mode = NodeMode::PeerServer;
else
{
cerr << "Unknown mode: " << m << endl;
return -1;
}
}
else if (arg == "-h" || arg == "--help")
help();
else if (arg == "-V" || arg == "--version")
version();
else
remoteHost = argv[i];
}
if (!clientName.empty())
clientName += "/";
Client c("Ethereum(++)/" + clientName + "v" + eth::EthVersion + "/" ETH_QUOTED(ETH_BUILD_TYPE) "/" ETH_QUOTED(ETH_BUILD_PLATFORM), coinbase, dbPath);
cout << credits();
cout << "Address: " << endl << toHex(us.address().asArray()) << endl;
c.startNetwork(listenPort, remoteHost, remotePort, mode, peers, publicIP, upnp);
#if ETH_JSONRPC
auto_ptr<EthStubServer> jsonrpcServer;
if (jsonrpc > -1)
{
jsonrpcServer = auto_ptr<EthStubServer>(new EthStubServer(new jsonrpc::HttpServer(jsonrpc), c));
jsonrpcServer->setKeys({us});
jsonrpcServer->StartListening();
}
#endif
if (interactive)
{
string l;
while (true)
{
#if ETH_READLINE
if (l.size())
add_history(l.c_str());
if (auto c = readline("> "))
{
l = c;
free(c);
}
else
break;
#else
string l;
cout << "> " << flush;
std::getline(cin, l);
#endif
istringstream iss(l);
string cmd;
iss >> cmd;
if (cmd == "netstart")
{
eth::uint port;
iss >> port;
ClientGuard g(&c);
c.startNetwork((short)port);
}
else if (cmd == "connect")
{
string addr;
eth::uint port;
iss >> addr >> port;
ClientGuard g(&c);
c.connect(addr, (short)port);
}
else if (cmd == "netstop")
{
ClientGuard g(&c);
c.stopNetwork();
}
else if (cmd == "minestart")
{
c.startMining();
}
else if (cmd == "minestop")
{
c.stopMining();
}
else if (cmd == "verbosity")
{
if (iss.peek() != -1)
iss >> g_logVerbosity;
cout << "Verbosity: " << g_logVerbosity << endl;
}
#if ETH_JSONRPC
else if (cmd == "jsonport")
{
if (iss.peek() != -1)
iss >> jsonrpc;
cout << "JSONRPC Port: " << jsonrpc << endl;
}
else if (cmd == "jsonstart")
{
if (jsonrpc < 0)
jsonrpc = 8080;
jsonrpcServer = auto_ptr<EthStubServer>(new EthStubServer(new jsonrpc::HttpServer(jsonrpc), c));
jsonrpcServer->setKeys({us});
jsonrpcServer->StartListening();
}
else if (cmd == "jsonstop")
{
if (jsonrpcServer.get())
jsonrpcServer->StopListening();
jsonrpcServer.reset();
}
#endif
else if (cmd == "address")
{
cout << "Current address:" << endl;
const char* addchr = toHex(us.address().asArray()).c_str();
cout << addchr << endl;
}
else if (cmd == "secret")
{
cout << "Secret Key: " << toHex(us.secret().asArray()) << endl;
}
else if (cmd == "block")
{
ClientGuard g(&c);
cout << "Current block: " << c.blockChain().details().number;
}
else if (cmd == "peers")
{
ClientGuard g(&c);
for (auto it: c.peers())
cout << it.host << ":" << it.port << ", " << it.clientVersion << ", "
<< std::chrono::duration_cast<std::chrono::milliseconds>(it.lastPing).count() << "ms"
<< endl;
}
else if (cmd == "balance")
{
ClientGuard g(&c);
cout << "Current balance: " << formatBalance(c.postState().balance(us.address())) << " = " << c.postState().balance(us.address()) << " wei" << endl;
}
else if (cmd == "transact")
{
ClientGuard g(&c);
auto const& bc = c.blockChain();
auto h = bc.currentHash();
auto blockData = bc.block(h);
BlockInfo info(blockData);
if(iss.peek()!=-1){
string hexAddr;
u256 amount;
u256 gasPrice;
u256 gas;
string sechex;
string sdata;
iss >> hexAddr >> amount >> gasPrice >> gas >> sechex >> sdata;
cnote << "Data:";
cnote << sdata;
bytes data = parse_data(sdata);
cnote << "Bytes:";
string sbd = asString(data);
bytes bbd = asBytes(sbd);
stringstream ssbd;
ssbd << bbd;
cnote << ssbd.str();
int ssize = sechex.length();
int size = hexAddr.length();
u256 minGas = (u256)c.state().callGas(data.size(), 0);
if (size < 40)
{
if (size > 0)
cwarn << "Invalid address length: " << size;
}
else if (amount < 0)
cwarn << "Invalid amount: " << amount;
else if (gasPrice < info.minGasPrice)
cwarn << "Minimum gas price is " << info.minGasPrice;
else if (gas < minGas)
cwarn << "Minimum gas amount is " << minGas;
else if (ssize < 40)
{
if (ssize > 0)
cwarn << "Invalid secret length:" << ssize;
}
else
{
Secret secret = h256(fromHex(sechex));
Address dest = h160(fromHex(hexAddr));
c.transact(secret, amount, dest, data, gas, gasPrice);
}
} else {
cwarn << "Require parameters: transact ADDRESS AMOUNT GASPRICE GAS SECRET DATA";
}
}
else if (cmd == "listContracts")
{
ClientGuard g(&c);
auto const& st = c.state();
auto acs = st.addresses();
string ss;
for (auto const& i: acs)
{
auto r = i.first;
if (st.addressHasCode(r))
{
ss = toString(r) + " : " + toString(formatBalance(i.second)) + " [" + toString((unsigned)st.transactionsFrom(i.first)) + "]";
cout << ss << endl;
}
}
}
else if (cmd == "listAccounts")
{
ClientGuard g(&c);
auto const& st = c.state();
auto acs = st.addresses();
string ss;
for (auto const& i: acs)
{
auto r = i.first;
if (!st.addressHasCode(r))
{
ss = toString(r) + pretty(r, st) + " : " + toString(formatBalance(i.second)) + " [" + toString((unsigned)st.transactionsFrom(i.first)) + "]";
cout << ss << endl;
}
}
}
else if (cmd == "send")
{
ClientGuard g(&c);
if(iss.peek() != -1){
string hexAddr;
u256 amount;
int size = hexAddr.length();
iss >> hexAddr >> amount;
if (size < 40)
{
if (size > 0)
cwarn << "Invalid address length: " << size;
}
else if (amount < 0) {
cwarn << "Invalid amount: " << amount;
} else {
auto const& bc = c.blockChain();
auto h = bc.currentHash();
auto blockData = bc.block(h);
BlockInfo info(blockData);
u256 minGas = (u256)c.state().callGas(0, 0);
Address dest = h160(fromHex(hexAddr));
c.transact(us.secret(), amount, dest, bytes(), minGas, info.minGasPrice);
}
} else {
cwarn << "Require parameters: send ADDRESS AMOUNT";
}
}
else if (cmd == "contract")
{
ClientGuard g(&c);
auto const& bc = c.blockChain();
auto h = bc.currentHash();
auto blockData = bc.block(h);
BlockInfo info(blockData);
if(iss.peek() != -1) {
u256 endowment;
u256 gas;
u256 gasPrice;
string sinit;
iss >> endowment >> gasPrice >> gas >> sinit;
trim_all(sinit);
int size = sinit.length();
bytes init;
cnote << "Init:";
cnote << sinit;
cnote << "Code size: " << size;
if (size < 1)
cwarn << "No code submitted";
else
{
cnote << "Assembled:";
stringstream ssc;
init = fromHex(sinit);
ssc.str(string());
ssc << disassemble(init);
cnote << "Init:";
cnote << ssc.str();
}
u256 minGas = (u256)c.state().createGas(init.size(), 0);
if (endowment < 0)
cwarn << "Invalid endowment";
else if (gasPrice < info.minGasPrice)
cwarn << "Minimum gas price is " << info.minGasPrice;
else if (gas < minGas)
cwarn << "Minimum gas amount is " << minGas;
else
{
c.transact(us.secret(), endowment, init, gas, gasPrice);
}
} else {
cwarn << "Require parameters: contract ENDOWMENT GASPRICE GAS CODEHEX";
}
}
else if (cmd == "inspect")
{
string rechex;
iss >> rechex;
if (rechex.length() != 40)
cwarn << "Invalid address length";
else
{
ClientGuard g(&c);
auto h = h160(fromHex(rechex));
stringstream s;
auto mem = c.state().storage(h);
for (auto const& i: mem)
s << "@" << showbase << hex << i.first << " " << showbase << hex << i.second << endl;
s << endl << disassemble(c.state().code(h));
string outFile = getDataDir() + "/" + rechex + ".evm";
ofstream ofs;
ofs.open(outFile, ofstream::binary);
ofs.write(s.str().c_str(), s.str().length());
ofs.close();
}
}
else if (cmd == "setSecret")
{
string hexSec;
iss >> hexSec;
us = KeyPair(h256(fromHex(hexSec)));
}
else if (cmd == "help")
interactiveHelp();
else if (cmd == "exit")
break;
else
cout << "Unrecognised command. Type 'help' for help in interactive mode." << endl;
}
#if ETH_JSONRPC
if (jsonrpcServer.get())
jsonrpcServer->StopListening();
#endif
}
else
{
eth::uint n = c.blockChain().details().number;
if (mining)
c.startMining();
while (true)
{
if (c.blockChain().details().number - n == mining)
c.stopMining();
this_thread::sleep_for(chrono::milliseconds(100));
}
}
return 0;
}
bytes parse_data(string _args)
{
bytes m_data;
stringstream args(_args);
string arg;
int cc = 0;
while (args >> arg)
{
int al = arg.length();
if (boost::starts_with(arg, "0x"))
{
bytes bs = fromHex(arg);
m_data += bs;
}
else if (arg[0] == '@')
{
arg = arg.substr(1, arg.length());
if (boost::starts_with(arg, "0x"))
{
cnote << "hex: " << arg;
bytes bs = fromHex(arg);
int size = bs.size();
if (size < 32)
for (auto i = 0; i < 32 - size; ++i)
m_data.push_back(0);
m_data += bs;
}
else if (boost::starts_with(arg, "\"") && boost::ends_with(arg, "\""))
{
arg = arg.substr(1, arg.length() - 2);
cnote << "string: " << arg;
if (al < 32)
for (int i = 0; i < 32 - al; ++i)
m_data.push_back(0);
for (int i = 0; i < al; ++i)
m_data.push_back(arg[i]);
}
else
{
cnote << "value: " << arg;
bytes bs = toBigEndian(u256(arg));
int size = bs.size();
if (size < 32)
for (auto i = 0; i < 32 - size; ++i)
m_data.push_back(0);
m_data += bs;
}
}
else
for (int i = 0; i < al; ++i)
m_data.push_back(arg[i]);
cc++;
}
return m_data;
}