VeraCrypt
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path: root/src/Main/Hotkey.cpp
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/*
 Copyright (c) 2008-2009 TrueCrypt Developers Association. All rights reserved.

 Governed by the TrueCrypt License 3.0 the full text of which is contained in
 the file License.txt included in TrueCrypt binary and source code distribution
 packages.
*/

#include "System.h"
#include "Application.h"
#include "LanguageStrings.h"
#include "GraphicUserInterface.h"
#include "Hotkey.h"
#include "Xml.h"

namespace VeraCrypt
{
	HotkeyList Hotkey::GetAvailableHotkeys ()
	{
		HotkeyList hotkeys;
#ifdef TC_WINDOWS

#define TC_HOTKEY(ID,LANG) hotkeys.push_back (shared_ptr <Hotkey> (new Hotkey (Id::##ID, L###ID, LangString[LANG])))

		TC_HOTKEY (CloseAllSecurityTokenSessions, "IDM_CLOSE_ALL_TOKEN_SESSIONS");
		TC_HOTKEY (DismountAll, "HK_DISMOUNT_ALL");
		TC_HOTKEY (DismountAllWipeCache, "HK_DISMOUNT_ALL_AND_WIPE");
		TC_HOTKEY (ForceDismountAllWipeCache, "HK_FORCE_DISMOUNT_ALL_AND_WIPE");
		TC_HOTKEY (ForceDismountAllWipeCacheExit, "HK_FORCE_DISMOUNT_ALL_AND_WIPE_AND_EXIT");
		TC_HOTKEY (MountAllDevices, "HK_AUTOMOUNT_DEVICES");
		TC_HOTKEY (MountAllFavorites, "HK_MOUNT_FAVORITE_VOLUMES");
		TC_HOTKEY (ShowHideApplication, "HK_SHOW_HIDE_MAIN_WINDOW");
		TC_HOTKEY (WipeCache, "HK_WIPE_CACHE");

#endif
		return hotkeys;
	}

	wxString Hotkey::GetShortcutString () const
	{
		wxString keyStr = Hotkey::GetVirtualKeyCodeString (VirtualKeyCode);
		if (keyStr.empty())
			return L"";

		wxString str;

		if (VirtualKeyModifiers & wxMOD_SHIFT)
			str += LangString["VK_SHIFT"] + L"+";
		
		if (VirtualKeyModifiers & wxMOD_CONTROL)
			str += LangString["VK_CONTROL"] + L"+";
		
		if (VirtualKeyModifiers & wxMOD_ALT)
			str += LangString["VK_ALT"] + L"+";
		
		if (VirtualKeyModifiers & wxMOD_WIN )
			str += LangString["VK_WIN"] + L"+";

		return str + keyStr;
	}

	wxString Hotkey::GetVirtualKeyCodeString (int virtualKeyCode)
	{
#ifdef TC_WINDOWS
		// ASCII characters
		if (virtualKeyCode >= 0x30 && virtualKeyCode <= 0x5a)	
			return StringFormatter (L"{0}", char (virtualKeyCode));

		// OEM-specific
		if (virtualKeyCode >= 0xE9 && virtualKeyCode <= 0xF5)	
			return StringFormatter (L"OEM-{0}", virtualKeyCode);

		// F1-F24
		if (virtualKeyCode >= VK_F1 && virtualKeyCode <= VK_F24)
			return StringFormatter (L"F{0}", virtualKeyCode - VK_F1 + 1);

		// Numpad numbers
		if (virtualKeyCode >= VK_NUMPAD0 && virtualKeyCode <= VK_NUMPAD9)
			return StringFormatter (L"{0} {1}", LangString["VK_NUMPAD"], virtualKeyCode - VK_NUMPAD0);

		switch (virtualKeyCode)
		{
		case VK_MULTIPLY:	return LangString["VK_NUMPAD"] + L" *";
		case VK_ADD:		return LangString["VK_NUMPAD"] + L" +";
		case VK_SEPARATOR:	return LangString["VK_NUMPAD"] + L" Separator";
		case VK_SUBTRACT:	return LangString["VK_NUMPAD"] + L" -";
		case VK_DECIMAL:	return LangString["VK_NUMPAD"] + L" .";
		case VK_DIVIDE:		return LangString["VK_NUMPAD"] + L" /";
		case VK_OEM_1:		return L"OEM 1 (';')";
		case VK_OEM_PLUS:	return L"+";
		case VK_OEM_COMMA:	return L",";
		case VK_OEM_MINUS:	return L"-";
		case VK_OEM_PERIOD:	return L".";
		case VK_OEM_2:		return L"OEM 2 ('/')";
		case VK_OEM_3:		return L"OEM 3 (`)";
		case VK_OEM_4:		return L"OEM 4 ('[')";
		case VK_OEM_5:		return L"OEM 5 ('\\')";
		case VK_OEM_6:		return L"OEM 6 (']')";
		case VK_OEM_7:		return L"OEM 7 (')";
		case VK_OEM_8:		return L"OEM 8";
		case VK_OEM_AX:		return L"OEM AX";
		case VK_OEM_102:	return L"OEM 102";
		case VK_ICO_HELP:	return L"ICO_HELP";
		case VK_ICO_00:		return L"ICO_00";
		case VK_ICO_CLEAR:	return L"ICO_CLEAR";
		case VK_ATTN:		return L"Attn";
		case VK_CRSEL:		return L"CrSel";
		case VK_EXSEL:		return L"ExSel";
		case VK_EREOF:		return L"Erase EOF";
		case VK_PA1:		return L"PA1";
		case VK_OEM_CLEAR:	return L"OEM Clear";

		case 0:
		case 1:
		case 0xFF:
			break;

		default:
			{
				string langStrId = StringConverter::ToSingle (wstring (wxString::Format (L"VKEY_%02X", virtualKeyCode)));
				if (LangString.Exists (langStrId))
					return LangString[langStrId];
			}
		}
#endif // TC_WINDOWS
		return L"";
	}

	HotkeyList Hotkey::LoadList ()
	{
		HotkeyList hotkeys = GetAvailableHotkeys();

		FilePath path = Application::GetConfigFilePath (GetFileName());
		if (path.IsFile())
		{
			foreach (XmlNode node, XmlParser (path).GetNodes (L"hotkey"))
			{
				wstring keyName (node.Attributes[L"name"]);

				foreach (shared_ptr <Hotkey> hotkey, hotkeys)
				{
					if (hotkey->Name == keyName)
					{
						hotkey->VirtualKeyCode = StringConverter::ToUInt32 (wstring (node.Attributes[L"vkeycode"]));
						hotkey->VirtualKeyModifiers = 0;
						
						if (node.Attributes[L"modshift"] == L"1")
							hotkey->VirtualKeyModifiers |= wxMOD_SHIFT;

						if (node.Attributes[L"modcontrol"] == L"1")
							hotkey->VirtualKeyModifiers |= wxMOD_CONTROL;

						if (node.Attributes[L"modalt"] == L"1")
							hotkey->VirtualKeyModifiers |= wxMOD_ALT;

						if (node.Attributes[L"modwin"] == L"1")
							hotkey->VirtualKeyModifiers |= wxMOD_WIN;

						break;
					}
				}
			}
		}

		return hotkeys;
	}

	void Hotkey::RegisterList (wxWindow *handler, const HotkeyList &hotkeys)
	{
#ifdef TC_WINDOWS
		bool res = true;
		foreach (shared_ptr <Hotkey> hotkey, hotkeys)
		{
			if (hotkey->VirtualKeyCode != 0)
			{
				if (!handler->RegisterHotKey (hotkey->Id, hotkey->VirtualKeyModifiers, hotkey->VirtualKeyCode))
					res = false;
			}
		}

		if (!res)
			Gui->ShowWarning ("HOTKEY_REGISTRATION_ERROR");
#endif
	}

	void Hotkey::SaveList (const HotkeyList &hotkeys)
	{
		FilePath hotkeysCfgPath = Application::GetConfigFilePath (GetFileName(), true);

		bool noHotkey = true;
		XmlNode hotkeysXml (L"hotkeys");
		foreach_ref (const Hotkey &hotkey, hotkeys)
		{
			if (hotkey.VirtualKeyCode == 0)
				continue;

			noHotkey = false;
			XmlNode node (L"hotkey");
			node.Attributes[L"name"] = wstring (hotkey.Name);

			node.Attributes[L"vkeycode"] = StringConverter::FromNumber (hotkey.VirtualKeyCode);

			if (hotkey.VirtualKeyModifiers & wxMOD_SHIFT)
				node.Attributes[L"modshift"] = L"1";

			if (hotkey.VirtualKeyModifiers & wxMOD_CONTROL)
				node.Attributes[L"modcontrol"] = L"1";

			if (hotkey.VirtualKeyModifiers & wxMOD_ALT)
				node.Attributes[L"modalt"] = L"1";

			if (hotkey.VirtualKeyModifiers & wxMOD_WIN )
				node.Attributes[L"modwin"] = L"1";

			hotkeysXml.InnerNodes.push_back (node);
		}

		if (noHotkey)
		{
			if (hotkeysCfgPath.IsFile())
				hotkeysCfgPath.Delete();
		}
		else
		{
			XmlWriter hotkeysWriter (hotkeysCfgPath);
			hotkeysWriter.WriteNode (hotkeysXml);
			hotkeysWriter.Close();
		}
	}

	void Hotkey::UnregisterList (wxWindow *handler, const HotkeyList &hotkeys)
	{
#ifdef TC_WINDOWS
		foreach (shared_ptr <Hotkey> hotkey, hotkeys)
		{
			if (hotkey->VirtualKeyCode != 0)
				handler->UnregisterHotKey (hotkey->Id);
		}
#endif
	}
}
an class="n">sector, uint16 sectorCount, bool silent) { BiosLbaPacket dapPacket; dapPacket.Buffer = (uint32) buffer; return ReadWriteSectors (write, dapPacket, drive, sector, sectorCount, silent); } BiosResult ReadWriteSectors (bool write, uint16 bufferSegment, uint16 bufferOffset, byte drive, const uint64 &sector, uint16 sectorCount, bool silent) { BiosLbaPacket dapPacket; dapPacket.Buffer = ((uint32) bufferSegment << 16) | bufferOffset; return ReadWriteSectors (write, dapPacket, drive, sector, sectorCount, silent); } BiosResult ReadSectors (uint16 bufferSegment, uint16 bufferOffset, byte drive, const uint64 &sector, uint16 sectorCount, bool silent) { return ReadWriteSectors (false, bufferSegment, bufferOffset, drive, sector, sectorCount, silent); } BiosResult ReadSectors (byte *buffer, byte drive, const uint64 &sector, uint16 sectorCount, bool silent) { BiosResult result; uint16 codeSeg; __asm mov codeSeg, cs result = ReadSectors (BootStarted ? codeSeg : TC_BOOT_LOADER_ALT_SEGMENT, (uint16) buffer, drive, sector, sectorCount, silent); // Alternative segment is used to prevent memory corruption caused by buggy BIOSes if (!BootStarted) CopyMemory (TC_BOOT_LOADER_ALT_SEGMENT, (uint16) buffer, buffer, sectorCount * TC_LB_SIZE); return result; } BiosResult WriteSectors (byte *buffer, byte drive, const uint64 &sector, uint16 sectorCount, bool silent) { return ReadWriteSectors (true, buffer, drive, sector, sectorCount, silent); } BiosResult GetDriveGeometry (byte drive, DriveGeometry &geometry, bool silent) { CheckStack(); byte maxCylinderLow, maxHead, maxSector; BiosResult result; __asm { push es mov dl, drive mov ah, 0x08 int 0x13 mov result, ah mov maxCylinderLow, ch mov maxSector, cl mov maxHead, dh pop es } if (result == BiosResultSuccess) { geometry.Cylinders = (maxCylinderLow | (uint16 (maxSector & 0xc0) << 2)) + 1; geometry.Heads = maxHead + 1; geometry.Sectors = maxSector & ~0xc0; } else if (!silent) { Print ("Drive "); Print (drive ^ 0x80); Print (" not found: "); PrintErrorNoEndl (""); Print (result); PrintEndl(); } return result; } void ChsToLba (const DriveGeometry &geometry, const ChsAddress &chs, uint64 &lba) { lba.HighPart = 0; lba.LowPart = (uint32 (chs.Cylinder) * geometry.Heads + chs.Head) * geometry.Sectors + chs.Sector - 1; } void LbaToChs (const DriveGeometry &geometry, const uint64 &lba, ChsAddress &chs) { chs.Sector = (byte) ((lba.LowPart % geometry.Sectors) + 1); uint32 ch = lba.LowPart / geometry.Sectors; chs.Head = (byte) (ch % geometry.Heads); chs.Cylinder = (uint16) (ch / geometry.Heads); } void PartitionEntryMBRToPartition (const PartitionEntryMBR &partEntry, Partition &partition) { partition.Active = partEntry.BootIndicator == 0x80; partition.EndSector.HighPart = 0; partition.EndSector.LowPart = partEntry.StartLBA + partEntry.SectorCountLBA - 1; partition.SectorCount.HighPart = 0; partition.SectorCount.LowPart = partEntry.SectorCountLBA; partition.StartSector.HighPart = 0; partition.StartSector.LowPart = partEntry.StartLBA; partition.Type = partEntry.Type; } BiosResult ReadWriteMBR (bool write, byte drive, bool silent) { uint64 mbrSector; mbrSector.HighPart = 0; mbrSector.LowPart = 0; if (write) return WriteSectors (SectorBuffer, drive, mbrSector, 1, silent); return ReadSectors (SectorBuffer, drive, mbrSector, 1, silent); // Uses alternative segment } BiosResult GetDrivePartitions (byte drive, Partition *partitionArray, size_t partitionArrayCapacity, size_t &partitionCount, bool activeOnly, Partition *findPartitionFollowingThis, bool silent) { Partition *followingPartition; Partition tmpPartition; if (findPartitionFollowingThis) { assert (partitionArrayCapacity == 1); partitionArrayCapacity = 0xff; followingPartition = partitionArray; partitionArray = &tmpPartition; followingPartition->Drive = TC_INVALID_BIOS_DRIVE; followingPartition->StartSector.LowPart = 0xFFFFffffUL; } AcquireSectorBuffer(); BiosResult result = ReadWriteMBR (false, drive, silent); ReleaseSectorBuffer(); partitionCount = 0; MBR *mbr = (MBR *) SectorBuffer; if (result != BiosResultSuccess || mbr->Signature != 0xaa55) return result; PartitionEntryMBR mbrPartitions[4]; memcpy (mbrPartitions, mbr->Partitions, sizeof (mbrPartitions)); size_t partitionArrayPos = 0, partitionNumber; for (partitionNumber = 0; partitionNumber < array_capacity (mbrPartitions) && partitionArrayPos < partitionArrayCapacity; ++partitionNumber) { const PartitionEntryMBR &partEntry = mbrPartitions[partitionNumber]; if (partEntry.SectorCountLBA > 0) { Partition &partition = partitionArray[partitionArrayPos]; PartitionEntryMBRToPartition (partEntry, partition); if (activeOnly && !partition.Active) continue; partition.Drive = drive; partition.Number = partitionArrayPos; if (partEntry.Type == 0x5 || partEntry.Type == 0xf) // Extended partition { if (IsLbaSupported (drive)) { // Find all extended partitions uint64 firstExtStartLBA = partition.StartSector; uint64 extStartLBA = partition.StartSector; MBR *extMbr = (MBR *) SectorBuffer; while (partitionArrayPos < partitionArrayCapacity && (result = ReadSectors ((byte *) extMbr, drive, extStartLBA, 1, silent)) == BiosResultSuccess && extMbr->Signature == 0xaa55) { if (extMbr->Partitions[0].SectorCountLBA > 0) { Partition &logPart = partitionArray[partitionArrayPos]; PartitionEntryMBRToPartition (extMbr->Partitions[0], logPart); logPart.Drive = drive; logPart.Number = partitionArrayPos; logPart.Primary = false; logPart.StartSector.LowPart += extStartLBA.LowPart; logPart.EndSector.LowPart += extStartLBA.LowPart; if (findPartitionFollowingThis) { if (logPart.StartSector.LowPart > findPartitionFollowingThis->EndSector.LowPart && logPart.StartSector.LowPart < followingPartition->StartSector.LowPart) { *followingPartition = logPart; } } else ++partitionArrayPos; } // Secondary extended if (extMbr->Partitions[1].Type != 0x5 && extMbr->Partitions[1].Type == 0xf || extMbr->Partitions[1].SectorCountLBA == 0) break; extStartLBA.LowPart = extMbr->Partitions[1].StartLBA + firstExtStartLBA.LowPart; } } } else { partition.Primary = true; if (findPartitionFollowingThis) { if (partition.StartSector.LowPart > findPartitionFollowingThis->EndSector.LowPart && partition.StartSector.LowPart < followingPartition->StartSector.LowPart) { *followingPartition = partition; } } else ++partitionArrayPos; } } } partitionCount = partitionArrayPos; return result; } bool GetActivePartition (byte drive) { size_t partCount; if (GetDrivePartitions (drive, &ActivePartition, 1, partCount, true) != BiosResultSuccess || partCount < 1) { ActivePartition.Drive = TC_INVALID_BIOS_DRIVE; PrintError (TC_BOOT_STR_NO_BOOT_PARTITION); return false; } return true; }