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128 lines
3.6 KiB
128 lines
3.6 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 AccountHolder.h
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* @authors:
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* Christian R <c@ethdev.com>
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* Lefteris Karapetsas <lefteris@ethdev.com>
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* @date 2015
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*/
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#pragma once
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#include <functional>
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#include <algorithm>
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#include <vector>
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#include <map>
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#include <libdevcrypto/Common.h>
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#include <libethcore/CommonJS.h>
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#include <libethereum/Transaction.h>
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namespace dev
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{
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namespace eth
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{
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class KeyManager;
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class Interface;
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/**
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* Manages real accounts (where we know the secret key) and proxy accounts (where transactions
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* to be sent from these accounts are forwarded to a proxy on the other side).
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*/
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class AccountHolder
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{
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public:
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explicit AccountHolder(std::function<Interface*()> const& _client): m_client(_client) {}
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virtual AddressHash realAccounts() const = 0;
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// use m_web3's submitTransaction
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// or use AccountHolder::queueTransaction(_t) to accept
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virtual h256 authenticate(dev::eth::TransactionSkeleton const& _t) = 0;
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Addresses allAccounts() const;
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bool isRealAccount(Address const& _account) const { return realAccounts().count(_account) > 0; }
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bool isProxyAccount(Address const& _account) const { return m_proxyAccounts.count(_account) > 0; }
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Address const& defaultTransactAccount() const;
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int addProxyAccount(Address const& _account);
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bool removeProxyAccount(unsigned _id);
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void queueTransaction(eth::TransactionSkeleton const& _transaction);
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std::vector<eth::TransactionSkeleton> const& queuedTransactions(int _id) const;
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void clearQueue(int _id);
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protected:
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std::function<Interface*()> m_client;
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private:
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using TransactionQueue = std::vector<eth::TransactionSkeleton>;
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std::unordered_map<Address, int> m_proxyAccounts;
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std::unordered_map<int, std::pair<Address, TransactionQueue>> m_transactionQueues;
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};
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class SimpleAccountHolder: public AccountHolder
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{
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public:
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SimpleAccountHolder(std::function<Interface*()> const& _client, std::function<std::string(Address)> const& _getPassword, KeyManager& _keyman):
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AccountHolder(_client),
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m_getPassword(_getPassword),
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m_keyManager(_keyman)
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{}
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AddressHash realAccounts() const override;
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h256 authenticate(dev::eth::TransactionSkeleton const& _t) override;
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private:
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std::function<std::string(Address)> m_getPassword;
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KeyManager& m_keyManager;
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};
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class FixedAccountHolder: public AccountHolder
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{
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public:
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FixedAccountHolder(std::function<Interface*()> const& _client, std::vector<dev::KeyPair> const& _accounts):
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AccountHolder(_client)
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{
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setAccounts(_accounts);
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}
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void setAccounts(std::vector<dev::KeyPair> const& _accounts)
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{
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for (auto const& i: _accounts)
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m_accounts[i.address()] = i.secret();
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}
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dev::AddressHash realAccounts() const override
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{
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dev::AddressHash ret;
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for (auto const& i: m_accounts)
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ret.insert(i.first);
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return ret;
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}
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// use m_web3's submitTransaction
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// or use AccountHolder::queueTransaction(_t) to accept
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h256 authenticate(dev::eth::TransactionSkeleton const& _t) override;
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private:
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std::unordered_map<dev::Address, dev::Secret> m_accounts;
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};
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}
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}
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