dash/src/ui.h
Matt Corallo 4e87d341f7 Add wallet privkey encryption.
This commit adds support for ckeys, or enCrypted private keys, to the wallet.
All keys are stored in memory in their encrypted form and thus the passphrase
is required from the user to spend coins, or to create new addresses.

Keys are encrypted with AES-256-CBC using OpenSSL's EVP library. The key is
calculated via EVP_BytesToKey using SHA512 with (by default) 25000 rounds and
a random salt.

By default, the user's wallet remains unencrypted until they call the RPC
command encryptwallet <passphrase> or, from the GUI menu, Options->
Encrypt Wallet.

When the user is attempting to call RPC functions which require the password
to unlock the wallet, an error will be returned unless they call
walletpassphrase <passphrase> <time to keep key in memory> first.

A keypoolrefill command has been added which tops up the users keypool
(requiring the passphrase via walletpassphrase first).
keypoolsize has been added to the output of getinfo to show the user the
number of keys left before they need to specify their passphrase (and call
keypoolrefill).

Note that walletpassphrase will automatically fill keypool in a separate
thread which it spawns when the passphrase is set. This could cause some
delays in other threads waiting for locks on the wallet passphrase, including
one which could cause the passphrase to be stored longer than expected,
however it will not allow the passphrase to be used longer than expected as
ThreadCleanWalletPassphrase will attempt to get a lock on the key as soon
as the specified lock time has arrived.

When the keypool runs out (and wallet is locked) GetOrReuseKeyFromPool
returns vchDefaultKey, meaning miners may start to generate many blocks to
vchDefaultKey instead of a new key each time.

A walletpassphrasechange <oldpassphrase> <newpassphrase> has been added to
allow the user to change their password via RPC.

Whenever keying material (unencrypted private keys, the user's passphrase,
the wallet's AES key) is stored unencrypted in memory, any reasonable attempt
is made to mlock/VirtualLock that memory before storing the keying material.
This is not true in several (commented) cases where mlock/VirtualLocking the
memory is not possible.

Although encryption of private keys in memory can be very useful on desktop
systems (as some small amount of protection against stupid viruses), on an
RPC server, the password is entered fairly insecurely. Thus, the only main
advantage encryption has for RPC servers is for RPC servers that do not spend
coins, except in rare cases, eg. a webserver of a merchant which only receives
payment except for cases of manual intervention.

Thanks to jgarzik for the original patch and sipa, gmaxwell and many others
for all their input.

Conflicts:

	src/wallet.cpp
2011-07-13 02:11:25 +02:00

353 lines
9.9 KiB
C++

// Copyright (c) 2009-2010 Satoshi Nakamoto
// Distributed under the MIT/X11 software license, see the accompanying
// file license.txt or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_UI_H
#define BITCOIN_UI_H
#include <boost/function.hpp>
#include "wallet.h"
DECLARE_EVENT_TYPE(wxEVT_UITHREADCALL, -1)
extern wxLocale g_locale;
void HandleCtrlA(wxKeyEvent& event);
void UIThreadCall(boost::function0<void>);
int ThreadSafeMessageBox(const std::string& message, const std::string& caption="Message", int style=wxOK, wxWindow* parent=NULL, int x=-1, int y=-1);
bool ThreadSafeAskFee(int64 nFeeRequired, const std::string& strCaption, wxWindow* parent);
void CalledSetStatusBar(const std::string& strText, int nField);
void MainFrameRepaint();
void CreateMainWindow();
void SetStartOnSystemStartup(bool fAutoStart);
inline int MyMessageBox(const wxString& message, const wxString& caption="Message", int style=wxOK, wxWindow* parent=NULL, int x=-1, int y=-1)
{
#ifdef GUI
if (!fDaemon)
return wxMessageBox(message, caption, style, parent, x, y);
#endif
printf("wxMessageBox %s: %s\n", std::string(caption).c_str(), std::string(message).c_str());
fprintf(stderr, "%s: %s\n", std::string(caption).c_str(), std::string(message).c_str());
return wxOK;
}
#define wxMessageBox MyMessageBox
class CMainFrame : public CMainFrameBase
{
protected:
// Event handlers
void OnNotebookPageChanged(wxNotebookEvent& event);
void OnClose(wxCloseEvent& event);
void OnIconize(wxIconizeEvent& event);
void OnMouseEvents(wxMouseEvent& event);
void OnKeyDown(wxKeyEvent& event) { HandleCtrlA(event); }
void OnIdle(wxIdleEvent& event);
void OnPaint(wxPaintEvent& event);
void OnPaintListCtrl(wxPaintEvent& event);
void OnMenuFileExit(wxCommandEvent& event);
void OnUpdateUIOptionsGenerate(wxUpdateUIEvent& event);
void OnMenuOptionsChangeYourAddress(wxCommandEvent& event);
void OnMenuOptionsEncryptWallet(wxCommandEvent& event);
void OnMenuOptionsChangeWalletPassphrase(wxCommandEvent& event);
void OnMenuOptionsOptions(wxCommandEvent& event);
void OnMenuHelpAbout(wxCommandEvent& event);
void OnButtonSend(wxCommandEvent& event);
void OnButtonAddressBook(wxCommandEvent& event);
void OnSetFocusAddress(wxFocusEvent& event);
void OnMouseEventsAddress(wxMouseEvent& event);
void OnButtonNew(wxCommandEvent& event);
void OnButtonCopy(wxCommandEvent& event);
void OnListColBeginDrag(wxListEvent& event);
void OnListItemActivated(wxListEvent& event);
void OnListItemActivatedProductsSent(wxListEvent& event);
void OnListItemActivatedOrdersSent(wxListEvent& event);
void OnListItemActivatedOrdersReceived(wxListEvent& event);
public:
/** Constructor */
CMainFrame(wxWindow* parent);
~CMainFrame();
// Custom
enum
{
ALL = 0,
SENTRECEIVED = 1,
SENT = 2,
RECEIVED = 3,
};
int nPage;
wxListCtrl* m_listCtrl;
bool fShowGenerated;
bool fShowSent;
bool fShowReceived;
bool fRefreshListCtrl;
bool fRefreshListCtrlRunning;
bool fOnSetFocusAddress;
unsigned int nListViewUpdated;
bool fRefresh;
void OnUIThreadCall(wxCommandEvent& event);
int GetSortIndex(const std::string& strSort);
void InsertLine(bool fNew, int nIndex, uint256 hashKey, std::string strSort, const wxColour& colour, const wxString& str1, const wxString& str2, const wxString& str3, const wxString& str4, const wxString& str5);
bool DeleteLine(uint256 hashKey);
bool InsertTransaction(const CWalletTx& wtx, bool fNew, int nIndex=-1);
void RefreshListCtrl();
void RefreshStatusColumn();
};
class CTxDetailsDialog : public CTxDetailsDialogBase
{
protected:
// Event handlers
void OnButtonOK(wxCommandEvent& event);
public:
/** Constructor */
CTxDetailsDialog(wxWindow* parent, CWalletTx wtx);
// State
CWalletTx wtx;
};
class COptionsDialog : public COptionsDialogBase
{
protected:
// Event handlers
void OnListBox(wxCommandEvent& event);
void OnKillFocusTransactionFee(wxFocusEvent& event);
void OnCheckBoxUseProxy(wxCommandEvent& event);
void OnKillFocusProxy(wxFocusEvent& event);
void OnButtonOK(wxCommandEvent& event);
void OnButtonCancel(wxCommandEvent& event);
void OnButtonApply(wxCommandEvent& event);
public:
/** Constructor */
COptionsDialog(wxWindow* parent);
// Custom
bool fTmpStartOnSystemStartup;
bool fTmpMinimizeOnClose;
void SelectPage(int nPage);
CAddress GetProxyAddr();
};
class CAboutDialog : public CAboutDialogBase
{
protected:
// Event handlers
void OnButtonOK(wxCommandEvent& event);
public:
/** Constructor */
CAboutDialog(wxWindow* parent);
};
class CSendDialog : public CSendDialogBase
{
protected:
// Event handlers
void OnKeyDown(wxKeyEvent& event) { HandleCtrlA(event); }
void OnKillFocusAmount(wxFocusEvent& event);
void OnButtonAddressBook(wxCommandEvent& event);
void OnButtonPaste(wxCommandEvent& event);
void OnButtonSend(wxCommandEvent& event);
void OnButtonCancel(wxCommandEvent& event);
public:
/** Constructor */
CSendDialog(wxWindow* parent, const wxString& strAddress="");
// Custom
bool fEnabledPrev;
std::string strFromSave;
std::string strMessageSave;
};
class CSendingDialog : public CSendingDialogBase
{
public:
// Event handlers
void OnClose(wxCloseEvent& event);
void OnButtonOK(wxCommandEvent& event);
void OnButtonCancel(wxCommandEvent& event);
void OnPaint(wxPaintEvent& event);
public:
/** Constructor */
CSendingDialog(wxWindow* parent, const CAddress& addrIn, int64 nPriceIn, const CWalletTx& wtxIn);
~CSendingDialog();
// State
CAddress addr;
int64 nPrice;
CWalletTx wtx;
wxDateTime start;
char pszStatus[10000];
bool fCanCancel;
bool fAbort;
bool fSuccess;
bool fUIDone;
bool fWorkDone;
void Close();
void Repaint();
bool Status();
bool Status(const std::string& str);
bool Error(const std::string& str);
void StartTransfer();
void OnReply2(CDataStream& vRecv);
void OnReply3(CDataStream& vRecv);
};
void SendingDialogStartTransfer(void* parg);
void SendingDialogOnReply2(void* parg, CDataStream& vRecv);
void SendingDialogOnReply3(void* parg, CDataStream& vRecv);
class CAddressBookDialog : public CAddressBookDialogBase
{
protected:
// Event handlers
void OnNotebookPageChanged(wxNotebookEvent& event);
void OnListEndLabelEdit(wxListEvent& event);
void OnListItemSelected(wxListEvent& event);
void OnListItemActivated(wxListEvent& event);
void OnButtonDelete(wxCommandEvent& event);
void OnButtonCopy(wxCommandEvent& event);
void OnButtonEdit(wxCommandEvent& event);
void OnButtonNew(wxCommandEvent& event);
void OnButtonOK(wxCommandEvent& event);
void OnButtonCancel(wxCommandEvent& event);
void OnClose(wxCloseEvent& event);
public:
/** Constructor */
CAddressBookDialog(wxWindow* parent, const wxString& strInitSelected, int nPageIn, bool fDuringSendIn);
// Custom
enum
{
SENDING = 0,
RECEIVING = 1,
};
int nPage;
wxListCtrl* m_listCtrl;
bool fDuringSend;
wxString GetAddress();
wxString GetSelectedAddress();
wxString GetSelectedSendingAddress();
wxString GetSelectedReceivingAddress();
bool CheckIfMine(const std::string& strAddress, const std::string& strTitle);
};
class CGetTextFromUserDialog : public CGetTextFromUserDialogBase
{
protected:
// Event handlers
void OnButtonOK(wxCommandEvent& event) { EndModal(true); }
void OnButtonCancel(wxCommandEvent& event) { EndModal(false); }
void OnClose(wxCloseEvent& event) { EndModal(false); }
void OnKeyDown(wxKeyEvent& event)
{
if (event.GetKeyCode() == '\r' || event.GetKeyCode() == WXK_NUMPAD_ENTER)
EndModal(true);
else
HandleCtrlA(event);
}
public:
/** Constructor */
CGetTextFromUserDialog(wxWindow* parent,
const std::string& strCaption,
const std::string& strMessage1,
const std::string& strValue1="",
const std::string& strMessage2="",
const std::string& strValue2="") : CGetTextFromUserDialogBase(parent, wxID_ANY, strCaption)
{
int x = GetSize().GetWidth();
int y = GetSize().GetHeight();
m_staticTextMessage1->SetLabel(strMessage1);
m_textCtrl1->SetValue(strValue1);
y += wxString(strMessage1).Freq('\n') * 14;
if (!strMessage2.empty())
{
m_staticTextMessage2->Show(true);
m_staticTextMessage2->SetLabel(strMessage2);
m_textCtrl2->Show(true);
m_textCtrl2->SetValue(strValue2);
y += 46 + wxString(strMessage2).Freq('\n') * 14;
}
#ifndef __WXMSW__
x = x * 114 / 100;
y = y * 114 / 100;
#endif
SetSize(x, y);
}
// Custom
std::string GetValue() { return (std::string)m_textCtrl1->GetValue(); }
std::string GetValue1() { return (std::string)m_textCtrl1->GetValue(); }
std::string GetValue2() { return (std::string)m_textCtrl2->GetValue(); }
};
class CMyTaskBarIcon : public wxTaskBarIcon
{
protected:
// Event handlers
void OnLeftButtonDClick(wxTaskBarIconEvent& event);
void OnMenuRestore(wxCommandEvent& event);
void OnMenuSend(wxCommandEvent& event);
void OnMenuOptions(wxCommandEvent& event);
void OnUpdateUIGenerate(wxUpdateUIEvent& event);
void OnMenuGenerate(wxCommandEvent& event);
void OnMenuExit(wxCommandEvent& event);
public:
CMyTaskBarIcon() : wxTaskBarIcon()
{
Show(true);
}
void Show(bool fShow=true);
void Hide();
void Restore();
void UpdateTooltip();
virtual wxMenu* CreatePopupMenu();
DECLARE_EVENT_TABLE()
};
#endif