solidity/test/RPCSession.cpp

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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 RPCSession.cpp
* @author Dimtiry Khokhlov <dimitry@ethdev.com>
* @date 2016
*/
#include <string>
#include <stdio.h>
#include <thread>
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#include <libdevcore/CommonData.h>
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#include <json/reader.h>
#include <json/writer.h>
#include "RPCSession.h"
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using namespace std;
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using namespace dev;
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IPCSocket::IPCSocket(string const& _path): m_path(_path)
{
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if (_path.length() >= sizeof(sockaddr_un::sun_path))
BOOST_FAIL("Error opening IPC: socket path is too long!");
struct sockaddr_un saun;
saun.sun_family = AF_UNIX;
strcpy(saun.sun_path, _path.c_str());
if ((m_socket = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
BOOST_FAIL("Error creating IPC socket object");
int len = sizeof(saun.sun_family) + strlen(saun.sun_path);
if (connect(m_socket, reinterpret_cast<struct sockaddr const*>(&saun), len) < 0)
BOOST_FAIL("Error connecting to IPC socket: " << _path);
m_fp = fdopen(m_socket, "r");
}
string IPCSocket::sendRequest(string const& _req)
{
send(m_socket, _req.c_str(), _req.length(), 0);
char c;
string response;
while ((c = fgetc(m_fp)) != EOF)
{
if (c != '\n')
response += c;
else
break;
}
return response;
}
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RPCSession& RPCSession::instance(const string& _path)
{
static RPCSession session(_path);
BOOST_REQUIRE_EQUAL(session.m_ipcSocket.path(), _path);
return session;
}
string RPCSession::eth_getCode(string const& _address, string const& _blockNumber)
{
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return rpcCall("eth_getCode", { quote(_address), quote(_blockNumber) }).asString();
}
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RPCSession::TransactionReceipt RPCSession::eth_getTransactionReceipt(string const& _transactionHash)
{
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TransactionReceipt receipt;
Json::Value const result = rpcCall("eth_getTransactionReceipt", { quote(_transactionHash) });
BOOST_REQUIRE(!result.isNull());
receipt.gasUsed = result["gasUsed"].asString();
receipt.contractAddress = result["contractAddress"].asString();
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for (auto const& log: result["logs"])
{
LogEntry entry;
entry.address = log["address"].asString();
entry.data = log["data"].asString();
for (auto const& topic: log["topics"])
entry.topics.push_back(topic.asString());
receipt.logEntries.push_back(entry);
}
return receipt;
}
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string RPCSession::eth_sendTransaction(TransactionData const& _td)
{
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return rpcCall("eth_sendTransaction", { _td.toJson() }).asString();
}
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string RPCSession::eth_call(TransactionData const& _td, string const& _blockNumber)
{
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return rpcCall("eth_call", { _td.toJson(), quote(_blockNumber) }).asString();
}
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string RPCSession::eth_sendTransaction(string const& _transaction)
{
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return rpcCall("eth_sendTransaction", { _transaction }).asString();
}
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string RPCSession::eth_getBalance(string const& _address, string const& _blockNumber)
{
string address = (_address.length() == 20) ? "0x" + _address : _address;
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return rpcCall("eth_getBalance", { quote(address), quote(_blockNumber) }).asString();
}
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string RPCSession::eth_getStorageRoot(string const& _address, string const& _blockNumber)
{
string address = (_address.length() == 20) ? "0x" + _address : _address;
return rpcCall("eth_getStorageRoot", { quote(address), quote(_blockNumber) }).asString();
}
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void RPCSession::personal_unlockAccount(string const& _address, string const& _password, int _duration)
{
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rpcCall("personal_unlockAccount", { quote(_address), quote(_password), to_string(_duration) });
}
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string RPCSession::personal_newAccount(string const& _password)
{
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return rpcCall("personal_newAccount", { quote(_password) }).asString();
}
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void RPCSession::test_setChainParams(vector<string> const& _accounts)
{
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static std::string const c_configString = R"(
{
"sealEngine": "NoProof",
"params": {
"accountStartNonce": "0x",
"maximumExtraDataSize": "0x1000000",
"blockReward": "0x",
"allowFutureBlocks": "1"
},
"genesis": {
"author": "0000000000000010000000000000000000000000",
"timestamp": "0x00",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"extraData": "0x",
"gasLimit": "0x1000000000000"
},
"accounts": {
"0000000000000000000000000000000000000001": { "wei": "1", "precompiled": { "name": "ecrecover", "linear": { "base": 3000, "word": 0 } } },
"0000000000000000000000000000000000000002": { "wei": "1", "precompiled": { "name": "sha256", "linear": { "base": 60, "word": 12 } } },
"0000000000000000000000000000000000000003": { "wei": "1", "precompiled": { "name": "ripemd160", "linear": { "base": 600, "word": 120 } } },
"0000000000000000000000000000000000000004": { "wei": "1", "precompiled": { "name": "identity", "linear": { "base": 15, "word": 3 } } }
}
}
)";
Json::Value config;
BOOST_REQUIRE(Json::Reader().parse(c_configString, config));
for (auto const& account: _accounts)
config["accounts"][account]["wei"] = "0x100000000000000000000000000000000000000000";
test_setChainParams(Json::FastWriter().write(config));
}
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void RPCSession::test_setChainParams(string const& _config)
{
rpcCall("test_setChainParams", { _config });
}
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void RPCSession::test_rewindToBlock(size_t _blockNr)
{
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rpcCall("test_rewindToBlock", { to_string(_blockNr) });
}
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void RPCSession::test_mineBlocks(int _number)
{
u256 startBlock = fromBigEndian<u256>(fromHex(rpcCall("eth_blockNumber").asString()));
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rpcCall("test_mineBlocks", { to_string(_number) }, true);
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//@TODO do not use polling - but that would probably need a change to the test client
for (size_t polls = 0; polls < 100; ++polls)
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{
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if (fromBigEndian<u256>(fromHex(rpcCall("eth_blockNumber").asString())) >= startBlock + _number)
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return;
std::this_thread::sleep_for(chrono::milliseconds(10)); //it does not work faster then 10 ms
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}
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BOOST_FAIL("Error in test_mineBlocks: block mining timeout!");
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}
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void RPCSession::test_modifyTimestamp(size_t _timestamp)
{
rpcCall("test_modifyTimestamp", { to_string(_timestamp) });
}
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Json::Value RPCSession::rpcCall(string const& _methodName, vector<string> const& _args, bool _canFail)
{
string request = "{\"jsonrpc\":\"2.0\",\"method\":\"" + _methodName + "\",\"params\":[";
for (size_t i = 0; i < _args.size(); ++i)
{
request += _args[i];
if (i + 1 != _args.size())
request += ", ";
}
request += "],\"id\":" + to_string(m_rpcSequence) + "}";
++m_rpcSequence;
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//cout << "Request: " << request << endl;
string reply = m_ipcSocket.sendRequest(request);
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//cout << "Reply: " << reply << endl;
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Json::Value result;
Json::Reader().parse(reply, result, false);
if (result.isMember("error"))
{
if (_canFail)
return Json::Value();
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BOOST_FAIL("Error on JSON-RPC call: " + result["error"]["message"].asString());
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}
return result["result"];
}
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string const& RPCSession::accountCreateIfNotExists(size_t _id)
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{
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if (_id >= m_accounts.size())
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{
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m_accounts.push_back(personal_newAccount(""));
personal_unlockAccount(m_accounts.back(), "", 100000);
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}
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return m_accounts[_id];
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}
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RPCSession::RPCSession(const string& _path):
m_ipcSocket(_path)
{
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string account = personal_newAccount("");
personal_unlockAccount(account, "", 100000);
m_accounts.push_back(account);
test_setChainParams(m_accounts);
}
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string RPCSession::TransactionData::toJson() const
{
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Json::Value json;
json["from"] = (from.length() == 20) ? "0x" + from : from;
json["to"] = (to.length() == 20 || to == "") ? "0x" + to : to;
json["gas"] = gas;
json["gasprice"] = gasPrice;
json["value"] = value;
json["data"] = data;
return Json::FastWriter().write(json);
}