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93 lines
3.2 KiB
93 lines
3.2 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file OurWebThreeStubServer.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#include "OurWebThreeStubServer.h"
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#include <QMessageBox>
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#include <QAbstractButton>
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#include <libwebthree/WebThree.h>
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#include <libnatspec/NatspecExpressionEvaluator.h>
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#include "MainWin.h"
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using namespace std;
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using namespace dev;
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using namespace dev::eth;
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OurWebThreeStubServer::OurWebThreeStubServer(jsonrpc::AbstractServerConnector& _conn, WebThreeDirect& _web3,
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vector<KeyPair> const& _accounts, Main* main):
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WebThreeStubServer(_conn, _web3, _accounts), m_web3(&_web3), m_main(main)
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{}
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string OurWebThreeStubServer::shh_newIdentity()
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{
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KeyPair kp = dev::KeyPair::create();
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emit onNewId(QString::fromStdString(toJS(kp.sec())));
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return toJS(kp.pub());
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}
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bool OurWebThreeStubServer::showAuthenticationPopup(string const& _title, string const& _text) const
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{
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QMessageBox userInput;
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userInput.setText(QString::fromStdString(_title));
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userInput.setInformativeText(QString::fromStdString(_text + "\n Do you wish to allow this?"));
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userInput.setStandardButtons(QMessageBox::Ok | QMessageBox::Cancel);
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userInput.button(QMessageBox::Ok)->setText("Allow");
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userInput.button(QMessageBox::Cancel)->setText("Reject");
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userInput.setDefaultButton(QMessageBox::Cancel);
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return userInput.exec() == QMessageBox::Ok;
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}
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void OurWebThreeStubServer::showBasicValueTransferNotice(u256 _value) const
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{
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QMessageBox notice;
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notice.setText("Basic Value Transfer Transaction");
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notice.setInformativeText(QString::fromStdString("Value is " + toString(_value)));
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notice.setStandardButtons(QMessageBox::Ok);
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notice.exec();
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}
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bool OurWebThreeStubServer::authenticate(TransactionSkeleton const& _t)
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{
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h256 contractCodeHash = m_web3->ethereum()->postState().codeHash(_t.to);
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if (contractCodeHash == EmptySHA3)
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// contract creation
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return true;
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if (false) //TODO: When is is just a value transfer?
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{
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// recipient has no code - nothing special about this transaction, show basic value transfer info
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showBasicValueTransferNotice(_t.value);
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return true;
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}
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string userNotice = m_main->lookupNatSpecUserNotice(contractCodeHash, _t.data);
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if (userNotice.empty())
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return showAuthenticationPopup("Unverified Pending Transaction",
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"An undocumented transaction is about to be executed.");
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NatspecExpressionEvaluator evaluator;
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userNotice = evaluator.evalExpression(QString::fromStdString(userNotice)).toStdString();
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// otherwise it's a transaction to a contract for which we have the natspec
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return showAuthenticationPopup("Pending Transaction", userNotice);
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}
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