Files
easy7zip/CPP/7zip/UI/FileManager/FSDrives.cpp
Igor Pavlov 829409452d 9.04 beta
2016-05-28 00:15:59 +01:00

421 lines
10 KiB
C++
Executable File

// FSDrives.cpp
#include "StdAfx.h"
#include "../../../../C/Alloc.h"
#include "Common/ComTry.h"
#include "Common/StringConvert.h"
#include "Windows/Defs.h"
#include "Windows/FileDir.h"
#include "Windows/FileIO.h"
#include "Windows/FileSystem.h"
#include "Windows/PropVariant.h"
#include "../../PropID.h"
#include "FSDrives.h"
#include "FSFolder.h"
#include "LangUtils.h"
#include "SysIconUtils.h"
#include "resource.h"
using namespace NWindows;
using namespace NFile;
using namespace NFind;
static const wchar_t *kVolPrefix = L"\\\\.\\";
UString CDriveInfo::GetDeviceFileIoName() const
{
return kVolPrefix + Name;
}
struct CPhysTempBuffer
{
void *buffer;
CPhysTempBuffer(): buffer(0) {}
~CPhysTempBuffer() { MidFree(buffer); }
};
static HRESULT CopyFileSpec(LPCWSTR fromPath, LPCWSTR toPath, bool writeToDisk, UInt64 fileSize,
UInt32 bufferSize, UInt64 progressStart, IProgress *progress)
{
NFile::NIO::CInFile inFile;
if (!inFile.Open(fromPath))
return GetLastError();
if (fileSize == (UInt64)(Int64)-1)
{
if (!inFile.GetLength(fileSize))
::GetLastError();
}
NFile::NIO::COutFile outFile;
if (writeToDisk)
{
if (!outFile.Open(toPath, FILE_SHARE_WRITE, OPEN_EXISTING, 0))
return GetLastError();
}
else
if (!outFile.Create(toPath, true))
return GetLastError();
CPhysTempBuffer tempBuffer;
tempBuffer.buffer = MidAlloc(bufferSize);
if (tempBuffer.buffer == 0)
return E_OUTOFMEMORY;
for (UInt64 pos = 0; pos < fileSize;)
{
UInt64 progressCur = progressStart + pos;
RINOK(progress->SetCompleted(&progressCur));
UInt64 rem = fileSize - pos;
UInt32 curSize = (UInt32)MyMin(rem, (UInt64)bufferSize);
UInt32 processedSize;
if (!inFile.Read(tempBuffer.buffer, curSize, processedSize))
return GetLastError();
if (processedSize == 0)
break;
curSize = processedSize;
if (writeToDisk)
{
const UInt32 kMask = 0x1FF;
curSize = (curSize + kMask) & ~kMask;
if (curSize > bufferSize)
return E_FAIL;
}
if (!outFile.Write(tempBuffer.buffer, curSize, processedSize))
return GetLastError();
if (curSize != processedSize)
return E_FAIL;
pos += curSize;
}
return S_OK;
}
static const STATPROPSTG kProps[] =
{
{ NULL, kpidName, VT_BSTR},
{ NULL, kpidTotalSize, VT_UI8},
{ NULL, kpidFreeSpace, VT_UI8},
{ NULL, kpidType, VT_BSTR},
{ NULL, kpidVolumeName, VT_BSTR},
{ NULL, kpidFileSystem, VT_BSTR},
{ NULL, kpidClusterSize, VT_UI8}
};
static const char *kDriveTypes[] =
{
"Unknown",
"No Root Dir",
"Removable",
"Fixed",
"Remote",
"CD-ROM",
"RAM disk"
};
STDMETHODIMP CFSDrives::LoadItems()
{
_drives.Clear();
UStringVector driveStrings;
MyGetLogicalDriveStrings(driveStrings);
for (int i = 0; i < driveStrings.Size(); i++)
{
CDriveInfo di;
const UString &driveName = driveStrings[i];
di.FullSystemName = driveName;
di.Name = di.FullSystemName.Left(di.FullSystemName.Length() - 1);
di.ClusterSize = 0;
di.DriveSize = 0;
di.FreeSpace = 0;
di.DriveType = NFile::NSystem::MyGetDriveType(driveName);
bool needRead = true;
if (di.DriveType == DRIVE_CDROM || di.DriveType == DRIVE_REMOVABLE)
{
/*
DWORD dwSerialNumber;`
if (!::GetVolumeInformation(di.FullSystemName,
NULL, 0, &dwSerialNumber, NULL, NULL, NULL, 0))
*/
di.KnownSizes = false;
{
needRead = false;
}
}
if (needRead)
{
UString volumeName, fileSystemName;
DWORD volumeSerialNumber, maximumComponentLength, fileSystemFlags;
NFile::NSystem::MyGetVolumeInformation(driveName,
volumeName,
&volumeSerialNumber, &maximumComponentLength, &fileSystemFlags,
fileSystemName);
di.VolumeName = volumeName;
di.FileSystemName = fileSystemName;
NFile::NSystem::MyGetDiskFreeSpace(driveName,
di.ClusterSize, di.DriveSize, di.FreeSpace);
di.KnownSizes = true;
}
_drives.Add(di);
}
return S_OK;
}
STDMETHODIMP CFSDrives::GetNumberOfItems(UInt32 *numItems)
{
*numItems = _drives.Size();
return S_OK;
}
STDMETHODIMP CFSDrives::GetProperty(UInt32 itemIndex, PROPID propID, PROPVARIANT *value)
{
if (itemIndex >= (UInt32)_drives.Size())
return E_INVALIDARG;
NCOM::CPropVariant prop;
const CDriveInfo &di = _drives[itemIndex];
switch(propID)
{
case kpidIsDir: prop = !_volumeMode; break;
case kpidName: prop = di.Name; break;
case kpidTotalSize: if (di.KnownSizes) prop = di.DriveSize; break;
case kpidFreeSpace: if (di.KnownSizes) prop = di.FreeSpace; break;
case kpidClusterSize: if (di.KnownSizes) prop = di.ClusterSize; break;
case kpidType:
if (di.DriveType < sizeof(kDriveTypes) / sizeof(kDriveTypes[0]))
prop = kDriveTypes[di.DriveType];
break;
case kpidVolumeName: prop = di.VolumeName; break;
case kpidFileSystem: prop = di.FileSystemName; break;
}
prop.Detach(value);
return S_OK;
}
HRESULT CFSDrives::BindToFolderSpec(const wchar_t *name, IFolderFolder **resultFolder)
{
*resultFolder = 0;
if (_volumeMode)
return S_OK;
NFsFolder::CFSFolder *fsFolderSpec = new NFsFolder::CFSFolder;
CMyComPtr<IFolderFolder> subFolder = fsFolderSpec;
RINOK(fsFolderSpec->Init(name, 0));
*resultFolder = subFolder.Detach();
return S_OK;
}
STDMETHODIMP CFSDrives::BindToFolder(UInt32 index, IFolderFolder **resultFolder)
{
*resultFolder = 0;
if (index >= (UInt32)_drives.Size())
return E_INVALIDARG;
const CDriveInfo &di = _drives[index];
/*
if (_volumeMode)
{
*resultFolder = 0;
CPhysDriveFolder *folderSpec = new CPhysDriveFolder;
CMyComPtr<IFolderFolder> subFolder = folderSpec;
RINOK(folderSpec->Init(di.Name));
*resultFolder = subFolder.Detach();
return S_OK;
}
*/
return BindToFolderSpec(di.FullSystemName, resultFolder);
}
STDMETHODIMP CFSDrives::BindToFolder(const wchar_t *name, IFolderFolder **resultFolder)
{
return BindToFolderSpec(name, resultFolder);
}
STDMETHODIMP CFSDrives::BindToParentFolder(IFolderFolder **resultFolder)
{
*resultFolder = 0;
return S_OK;
}
IMP_IFolderFolder_Props(CFSDrives)
STDMETHODIMP CFSDrives::GetFolderProperty(PROPID propID, PROPVARIANT *value)
{
COM_TRY_BEGIN
NWindows::NCOM::CPropVariant prop;
switch(propID)
{
case kpidType: prop = L"FSDrives"; break;
case kpidPath:
if (_volumeMode)
prop = kVolPrefix;
else
prop = LangString(IDS_COMPUTER, 0x03020300) + UString(WCHAR_PATH_SEPARATOR);
break;
}
prop.Detach(value);
return S_OK;
COM_TRY_END
}
STDMETHODIMP CFSDrives::GetSystemIconIndex(UInt32 index, Int32 *iconIndex)
{
*iconIndex = 0;
const CDriveInfo &di = _drives[index];
int iconIndexTemp;
if (GetRealIconIndex(di.FullSystemName, 0, iconIndexTemp) != 0)
{
*iconIndex = iconIndexTemp;
return S_OK;
}
return GetLastError();
}
UString CFSDrives::GetExt(int index) const
{
const CDriveInfo &di = _drives[index];
const wchar_t *ext = NULL;
if (di.DriveType == DRIVE_CDROM)
ext = L"iso";
else if (di.FileSystemName.Find(L"NTFS") >= 0)
ext = L"ntfs";
else if (di.FileSystemName.Find(L"FAT") >= 0)
ext = L"fat";
else
ext = L"img";
return (UString)L'.' + ext;
}
HRESULT CFSDrives::GetLength(int index, UInt64 &length) const
{
NFile::NIO::CInFile inFile;
if (!inFile.Open(_drives[index].GetDeviceFileIoName()))
return GetLastError();
if (!inFile.LengthDefined)
return E_FAIL;
length = inFile.Length;
return S_OK;
}
STDMETHODIMP CFSDrives::CopyTo(const UInt32 *indices, UInt32 numItems,
const wchar_t *path, IFolderOperationsExtractCallback *callback)
{
if (numItems == 0)
return S_OK;
if (!_volumeMode)
return E_NOTIMPL;
UInt64 totalSize = 0;
UInt32 i;
for (i = 0; i < numItems; i++)
{
const CDriveInfo &di = _drives[indices[i]];
if (di.KnownSizes)
totalSize += di.DriveSize;
}
RINOK(callback->SetTotal(totalSize));
RINOK(callback->SetNumFiles(numItems));
UString destPath = path;
if (destPath.IsEmpty())
return E_INVALIDARG;
bool directName = (destPath[destPath.Length() - 1] != WCHAR_PATH_SEPARATOR);
if (directName)
{
if (numItems > 1)
return E_INVALIDARG;
}
UInt64 completedSize = 0;
RINOK(callback->SetCompleted(&completedSize));
for (i = 0; i < numItems; i++)
{
int index = indices[i];
const CDriveInfo &di = _drives[index];
UString destPath2 = destPath;
UString name = di.Name;
if (!directName)
{
UString destName = name;
if (!destName.IsEmpty() && destName[destName.Length() - 1] == L':')
{
destName.Delete(destName.Length() - 1);
destName += GetExt(index);
}
destPath2 += destName;
}
UString srcPath = di.GetDeviceFileIoName();
UInt64 fileSize = 0;
if (GetLength(index, fileSize) != S_OK)
{
return E_FAIL;
}
if (!di.KnownSizes)
totalSize += fileSize;
RINOK(callback->SetTotal(totalSize));
Int32 writeAskResult;
CMyComBSTR destPathResult;
RINOK(callback->AskWrite(srcPath, BoolToInt(false), NULL, &fileSize,
destPath2, &destPathResult, &writeAskResult));
if (!IntToBool(writeAskResult))
continue;
RINOK(callback->SetCurrentFilePath(srcPath));
static const UInt32 kBufferSize = (4 << 20);
UInt32 bufferSize = (di.DriveType == DRIVE_REMOVABLE) ? (18 << 10) * 4 : kBufferSize;
RINOK(CopyFileSpec(srcPath, destPathResult, false, fileSize, bufferSize, completedSize, callback));
completedSize += fileSize;
}
return S_OK;
}
STDMETHODIMP CFSDrives::MoveTo(
const UInt32 * /* indices */,
UInt32 /* numItems */,
const wchar_t * /* path */,
IFolderOperationsExtractCallback * /* callback */)
{
return E_NOTIMPL;
}
STDMETHODIMP CFSDrives::CopyFrom(const wchar_t * /* fromFolderPath */,
const wchar_t ** /* itemsPaths */, UInt32 /* numItems */, IProgress * /* progress */)
{
return E_NOTIMPL;
}
STDMETHODIMP CFSDrives::CreateFolder(const wchar_t * /* name */, IProgress * /* progress */)
{
return E_NOTIMPL;
}
STDMETHODIMP CFSDrives::CreateFile(const wchar_t * /* name */, IProgress * /* progress */)
{
return E_NOTIMPL;
}
STDMETHODIMP CFSDrives::Rename(UInt32 /* index */, const wchar_t * /* newName */, IProgress * /* progress */)
{
return E_NOTIMPL;
}
STDMETHODIMP CFSDrives::Delete(const UInt32 * /* indices */, UInt32 /* numItems */, IProgress * /* progress */)
{
return E_NOTIMPL;
}
STDMETHODIMP CFSDrives::SetProperty(UInt32 /* index */, PROPID /* propID */,
const PROPVARIANT * /* value */, IProgress * /* progress */)
{
return E_NOTIMPL;
}