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/* $Id: */
/** @file
* VirtualBox Guest Control - Guest file handling.
*/
/*
* Copyright (C) 2011 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.
*/
#include "GuestImpl.h"
#include "GuestCtrlImplPrivate.h"
#include "Global.h"
#include "ConsoleImpl.h"
#include "ProgressImpl.h"
#include "VMMDev.h"
#include "AutoCaller.h"
#include "Logging.h"
#include <VBox/VMMDev.h>
#ifdef VBOX_WITH_GUEST_CONTROL
# include <VBox/com/array.h>
# include <VBox/com/ErrorInfo.h>
#endif
STDMETHODIMP Guest::FileExists(IN_BSTR aFile, IN_BSTR aUsername, IN_BSTR aPassword, BOOL *aExists)
{
#ifndef VBOX_WITH_GUEST_CONTROL
ReturnComNotImplemented();
#else /* VBOX_WITH_GUEST_CONTROL */
using namespace guestControl;
CheckComArgStrNotEmptyOrNull(aFile);
/* Do not allow anonymous executions (with system rights). */
if (RT_UNLIKELY((aUsername) == NULL || *(aUsername) == '\0'))
return setError(E_INVALIDARG, tr("No user name specified"));
/* If filename ends with a slash or backslash we assume it's a directory and
* call the appropriate function instead the regular one just for files. */
Utf8Str Utf8File(aFile);
if ( Utf8File.endsWith("/")
|| Utf8File.endsWith("\\"))
{
return directoryExistsInternal(aFile, aUsername, aPassword, aExists);
}
return fileExistsInternal(aFile,
aUsername, aPassword, aExists);
#endif
}
#ifdef VBOX_WITH_GUEST_CONTROL
HRESULT Guest::fileExistsInternal(IN_BSTR aFile, IN_BSTR aUsername, IN_BSTR aPassword, BOOL *aExists)
{
using namespace guestControl;
CheckComArgStrNotEmptyOrNull(aFile);
AutoCaller autoCaller(this);
if (FAILED(autoCaller.rc())) return autoCaller.rc();
int rc;
HRESULT hr = fileQueryInfoInternal(aFile,
aUsername, aPassword,
NULL /* No RTFSOBJINFO needed */,
RTFSOBJATTRADD_NOTHING, &rc);
if (SUCCEEDED(hr))
{
switch (rc)
{
case VINF_SUCCESS:
*aExists = TRUE;
break;
case VERR_FILE_NOT_FOUND:
*aExists = FALSE;
break;
case VERR_NOT_FOUND:
hr = setError(VBOX_E_IPRT_ERROR,
Guest::tr("Unable to query file existence"));
break;
default:
AssertReleaseMsgFailed(("fileExistsInternal: Unknown return value (%Rrc)\n", rc));
break;
}
}
return hr;
}
HRESULT Guest::fileQueryInfoInternal(IN_BSTR aFile,
IN_BSTR aUsername, IN_BSTR aPassword,
PRTFSOBJINFO aObjInfo, RTFSOBJATTRADD enmAddAttribs,
int *pRC)
{
using namespace guestControl;
/* aUsername is optional. */
/* aPassword is optional. */
/* aObjInfo is optional. */
HRESULT hr;
try
{
Utf8Str Utf8File(aFile);
Utf8Str Utf8Username(aUsername);
Utf8Str Utf8Password(aPassword);
com::SafeArray<IN_BSTR> args;
com::SafeArray<IN_BSTR> env;
/*
* Prepare tool command line.
*/
/* We need to get output which is machine-readable in form
* of "key=value\0..key=value\0\0". */
args.push_back(Bstr("--machinereadable").raw());
/* Only the actual file name to chekc is needed for now. */
args.push_back(Bstr(Utf8File).raw());
/*
* Execute guest process.
*/
ULONG uPID;
hr = executeAndWaitForTool(Bstr(VBOXSERVICE_TOOL_STAT).raw(), Bstr("Querying file information").raw(),
ComSafeArrayAsInParam(args),
ComSafeArrayAsInParam(env),
aUsername, aPassword,
NULL /* Progress */, &uPID);
if (SUCCEEDED(hr))
{
GuestCtrlStreamObjects streamObjs;
hr = executeStreamParse(uPID, streamObjs);
if (SUCCEEDED(hr))
{
int rc = VINF_SUCCESS;
const char *pszFsType = streamObjs[0].GetString("ftype");
if (!pszFsType) /* Attribute missing? */
rc = VERR_NOT_FOUND;
if ( RT_SUCCESS(rc)
&& strcmp(pszFsType, "-")) /* Regular file? */
{
rc = VERR_FILE_NOT_FOUND;
/* This is not critical for Main, so don't set hr --
* we will take care of rc then. */
}
if ( RT_SUCCESS(rc)
&& aObjInfo) /* Do we want object details? */
{
hr = executeStreamQueryFsObjInfo(aFile, streamObjs[0],
aObjInfo, enmAddAttribs);
}
if (pRC)
*pRC = rc;
}
}
}
catch (std::bad_alloc &)
{
hr = E_OUTOFMEMORY;
}
return hr;
}
#endif /* VBOX_WITH_GUEST_CONTROL */
STDMETHODIMP Guest::FileQuerySize(IN_BSTR aFile, IN_BSTR aUsername, IN_BSTR aPassword, LONG64 *aSize)
{
#ifndef VBOX_WITH_GUEST_CONTROL
ReturnComNotImplemented();
#else /* VBOX_WITH_GUEST_CONTROL */
using namespace guestControl;
CheckComArgStrNotEmptyOrNull(aFile);
/* Do not allow anonymous executions (with system rights). */
if (RT_UNLIKELY((aUsername) == NULL || *(aUsername) == '\0'))
return setError(E_INVALIDARG, tr("No user name specified"));
AutoCaller autoCaller(this);
if (FAILED(autoCaller.rc())) return autoCaller.rc();
return fileQuerySizeInternal(aFile,
aUsername, aPassword, aSize);
#endif
}
#ifdef VBOX_WITH_GUEST_CONTROL
HRESULT Guest::fileQuerySizeInternal(IN_BSTR aFile, IN_BSTR aUsername, IN_BSTR aPassword, LONG64 *aSize)
{
using namespace guestControl;
CheckComArgStrNotEmptyOrNull(aFile);
int rc;
RTFSOBJINFO objInfo;
HRESULT hr = fileQueryInfoInternal(aFile,
aUsername, aPassword,
&objInfo, RTFSOBJATTRADD_NOTHING, &rc);
if (SUCCEEDED(hr))
{
switch (rc)
{
case VINF_SUCCESS:
*aSize = objInfo.cbObject;
break;
case VERR_FILE_NOT_FOUND:
rc = setError(VBOX_E_IPRT_ERROR,
Guest::tr("File not found"));
break;
case VERR_NOT_FOUND:
rc = setError(VBOX_E_IPRT_ERROR,
Guest::tr("Unable to query file size"));
break;
default:
AssertReleaseMsgFailed(("fileExistsInternal: Unknown return value (%Rrc)\n", rc));
break;
}
}
return rc;
}
#endif /* VBOX_WITH_GUEST_CONTROL */
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