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/* $Id: DnDDroppedFiles.cpp $ */
/** @file
* DnD - Directory handling.
*/
/*
* Copyright (C) 2014-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP LOG_GROUP_GUEST_DND
#include <VBox/GuestHost/DragAndDrop.h>
#include <iprt/assert.h>
#include <iprt/dir.h>
#include <iprt/err.h>
#include <iprt/file.h>
#include <iprt/path.h>
#include <iprt/string.h>
#include <VBox/log.h>
DnDDroppedFiles::DnDDroppedFiles(void)
: m_fOpen(0)
, m_hDir(NULL) { }
DnDDroppedFiles::DnDDroppedFiles(const char *pszPath, DNDURIDROPPEDFILEFLAGS fFlags /* = DNDURIDROPPEDFILE_FLAGS_NONE */)
: m_fOpen(0)
, m_hDir(NULL)
{
OpenEx(pszPath, fFlags);
}
DnDDroppedFiles::~DnDDroppedFiles(void)
{
/* Only make sure to not leak any handles and stuff, don't delete any
* directories / files here. */
closeInternal();
}
int DnDDroppedFiles::AddFile(const char *pszFile)
{
AssertPtrReturn(pszFile, VERR_INVALID_POINTER);
if (!this->m_lstFiles.contains(pszFile))
this->m_lstFiles.append(pszFile);
return VINF_SUCCESS;
}
int DnDDroppedFiles::AddDir(const char *pszDir)
{
AssertPtrReturn(pszDir, VERR_INVALID_POINTER);
if (!this->m_lstDirs.contains(pszDir))
this->m_lstDirs.append(pszDir);
return VINF_SUCCESS;
}
int DnDDroppedFiles::closeInternal(void)
{
int rc;
if (this->m_hDir != NULL)
{
rc = RTDirClose(this->m_hDir);
if (RT_SUCCESS(rc))
this->m_hDir = NULL;
}
else
rc = VINF_SUCCESS;
LogFlowFuncLeaveRC(rc);
return rc;
}
int DnDDroppedFiles::Close(void)
{
return closeInternal();
}
const char *DnDDroppedFiles::GetDirAbs(void) const
{
return this->m_strPathAbs.c_str();
}
bool DnDDroppedFiles::IsOpen(void) const
{
return (this->m_hDir != NULL);
}
int DnDDroppedFiles::OpenEx(const char *pszPath, DNDURIDROPPEDFILEFLAGS fFlags /* = DNDURIDROPPEDFILE_FLAGS_NONE */)
{
AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
AssertReturn(fFlags == 0, VERR_INVALID_PARAMETER); /* Flags not supported yet. */
int rc;
do
{
char pszDropDir[RTPATH_MAX];
RTStrPrintf(pszDropDir, sizeof(pszDropDir), "%s", pszPath);
/** @todo On Windows we also could use the registry to override
* this path, on Posix a dotfile and/or a guest property
* can be used. */
/* Append our base drop directory. */
rc = RTPathAppend(pszDropDir, sizeof(pszDropDir), "VirtualBox Dropped Files"); /** @todo Make this tag configurable? */
if (RT_FAILURE(rc))
break;
/* Create it when necessary. */
if (!RTDirExists(pszDropDir))
{
rc = RTDirCreateFullPath(pszDropDir, RTFS_UNIX_IRWXU);
if (RT_FAILURE(rc))
break;
}
/* The actually drop directory consist of the current time stamp and a
* unique number when necessary. */
char pszTime[64];
RTTIMESPEC time;
if (!RTTimeSpecToString(RTTimeNow(&time), pszTime, sizeof(pszTime)))
{
rc = VERR_BUFFER_OVERFLOW;
break;
}
rc = DnDPathSanitizeFilename(pszTime, sizeof(pszTime));
if (RT_FAILURE(rc))
break;
rc = RTPathAppend(pszDropDir, sizeof(pszDropDir), pszTime);
if (RT_FAILURE(rc))
break;
/* Create it (only accessible by the current user) */
rc = RTDirCreateUniqueNumbered(pszDropDir, sizeof(pszDropDir), RTFS_UNIX_IRWXU, 3, '-');
if (RT_SUCCESS(rc))
{
RTDIR hDir;
rc = RTDirOpen(&hDir, pszDropDir);
if (RT_SUCCESS(rc))
{
this->m_hDir = hDir;
this->m_strPathAbs = pszDropDir;
this->m_fOpen = fFlags;
}
}
} while (0);
LogFlowFuncLeaveRC(rc);
return rc;
}
int DnDDroppedFiles::OpenTemp(DNDURIDROPPEDFILEFLAGS fFlags /* = DNDURIDROPPEDFILE_FLAGS_NONE */)
{
AssertReturn(fFlags == 0, VERR_INVALID_PARAMETER); /* Flags not supported yet. */
/*
* Get the user's temp directory. Don't use the user's root directory (or
* something inside it) because we don't know for how long/if the data will
* be kept after the guest OS used it.
*/
char szTemp[RTPATH_MAX];
int rc = RTPathTemp(szTemp, sizeof(szTemp));
if (RT_SUCCESS(rc))
rc = OpenEx(szTemp, fFlags);
return rc;
}
int DnDDroppedFiles::Reset(bool fRemoveDropDir)
{
int rc = closeInternal();
if (RT_SUCCESS(rc))
{
if (fRemoveDropDir)
{
rc = Rollback();
}
else
{
this->m_lstDirs.clear();
this->m_lstFiles.clear();
}
}
LogFlowFuncLeaveRC(rc);
return rc;
}
int DnDDroppedFiles::Reopen(void)
{
if (this->m_strPathAbs.isEmpty())
return VERR_NOT_FOUND;
return OpenEx(this->m_strPathAbs.c_str(), this->m_fOpen);
}
int DnDDroppedFiles::Rollback(void)
{
if (this->m_strPathAbs.isEmpty())
return VINF_SUCCESS;
int rc = VINF_SUCCESS;
/* Rollback by removing any stuff created.
* Note: Only remove empty directories, never ever delete
* anything recursive here! Steam (tm) knows best ... :-) */
int rc2;
for (size_t i = 0; i < this->m_lstFiles.size(); i++)
{
rc2 = RTFileDelete(this->m_lstFiles.at(i).c_str());
if (RT_SUCCESS(rc2))
this->m_lstFiles.removeAt(i);
else if (RT_SUCCESS(rc))
rc = rc2;
/* Keep going. */
}
for (size_t i = 0; i < this->m_lstDirs.size(); i++)
{
rc2 = RTDirRemove(this->m_lstDirs.at(i).c_str());
if (RT_SUCCESS(rc2))
this->m_lstDirs.removeAt(i);
else if (RT_SUCCESS(rc))
rc = rc2;
/* Keep going. */
}
if (RT_SUCCESS(rc))
{
Assert(this->m_lstFiles.isEmpty());
Assert(this->m_lstDirs.isEmpty());
rc2 = closeInternal();
if (RT_SUCCESS(rc2))
{
/* Try to remove the empty root dropped files directory as well.
* Might return VERR_DIR_NOT_EMPTY or similar. */
rc2 = RTDirRemove(this->m_strPathAbs.c_str());
}
if (RT_SUCCESS(rc))
rc = rc2;
}
LogFlowFuncLeaveRC(rc);
return rc;
}
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