qfileinfo_win.cpp

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

/**********************************************************************
** Copyright (C) 2000-2005 Trolltech AS.  All rights reserved.
**
** This file is part of the Qtopia Environment.
** 
** This program is free software; you can redistribute it and/or modify it
** under the terms of the GNU General Public License as published by the
** Free Software Foundation; either version 2 of the License, or (at your
** option) any later version.
** 
** A copy of the GNU GPL license version 2 is included in this package as 
** LICENSE.GPL.
**
** This program is distributed in the hope that it will be useful, but
** WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
** See the GNU General Public License for more details.
**
** In addition, as a special exception Trolltech gives permission to link
** the code of this program with Qtopia applications copyrighted, developed
** and distributed by Trolltech under the terms of the Qtopia Personal Use
** License Agreement. You must comply with the GNU General Public License
** in all respects for all of the code used other than the applications
** licensed under the Qtopia Personal Use License Agreement. If you modify
** this file, you may extend this exception to your version of the file,
** but you are not obligated to do so. If you do not wish to do so, delete
** this exception statement from your version.
** 
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact [e-mail] if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#include "qplatformdefs.h"

#include "qlibrary.h"
#include "qfileinfo.h"
#include "qfiledefs_p.h"
#include "qdatetime.h"
#include "qdir.h"
//#include "qapplication.h"

#ifdef QT_THREAD_SUPPORT
#  include <private/qmutexpool_p.h>
#endif // QT_THREAD_SUPPORT

#include <windows.h>
#include <direct.h>
#include <objbase.h>
#include <shlobj.h>
#include <initguid.h>
#include <ctype.h>
#include <limits.h>


#include <accctrl.h>
#define SECURITY_WIN32
#include <security.h>


typedef DWORD (WINAPI *PtrGetNamedSecurityInfoW)(LPWSTR, SE_OBJECT_TYPE, SECURITY_INFORMATION, PSID*, PSID*, PACL*, PACL*, PSECURITY_DESCRIPTOR*);
static PtrGetNamedSecurityInfoW ptrGetNamedSecurityInfoW = 0;
typedef DECLSPEC_IMPORT BOOL (WINAPI *PtrLookupAccountSidW)(LPCWSTR, PSID, LPWSTR, LPDWORD, LPWSTR, LPDWORD, PSID_NAME_USE);
static PtrLookupAccountSidW ptrLookupAccountSidW = 0;
typedef DECLSPEC_IMPORT BOOL (WINAPI *PtrAllocateAndInitializeSid)(PSID_IDENTIFIER_AUTHORITY, BYTE, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, PSID*);
static PtrAllocateAndInitializeSid ptrAllocateAndInitializeSid = 0;
typedef VOID (WINAPI *PtrBuildTrusteeWithSidW)(PTRUSTEE_W, PSID);
static PtrBuildTrusteeWithSidW ptrBuildTrusteeWithSidW = 0;
typedef VOID (WINAPI *PtrBuildTrusteeWithNameW)(PTRUSTEE_W, unsigned short*);
static PtrBuildTrusteeWithNameW ptrBuildTrusteeWithNameW = 0;
typedef DWORD (WINAPI *PtrGetEffectiveRightsFromAclW)(PACL, PTRUSTEE_W, OUT PACCESS_MASK);
static PtrGetEffectiveRightsFromAclW ptrGetEffectiveRightsFromAclW = 0;
typedef DECLSPEC_IMPORT PVOID (WINAPI *PtrFreeSid)(PSID);
static PtrFreeSid ptrFreeSid = 0;

static TRUSTEE_W currentUserTrusteeW;



static void resolveLibs()
{
#if !defined(QT_NO_COMPONENT)
    static bool triedResolve = FALSE;
    if ( !triedResolve ) {
	// need to resolve the security info functions

#ifdef QT_THREAD_SUPPORT
	// protect initialization
	QMutexLocker locker( qt_global_mutexpool ?
	    qt_global_mutexpool->get( &triedResolve ) : 0 );
	// check triedResolve again, since another thread may have already
	// done the initialization
	if ( triedResolve ) {
	    // another thread did initialize the security function pointers,
	    // so we shouldn't do it again.
	    return;
	}
#endif

	triedResolve = TRUE;
	if ( qWinVersion() & Qt::WV_NT_based ) {
	    QLibrary lib("advapi32");
	    lib.setAutoUnload( FALSE );

	    ptrGetNamedSecurityInfoW = (PtrGetNamedSecurityInfoW) lib.resolve( "GetNamedSecurityInfoW" );
	    ptrLookupAccountSidW = (PtrLookupAccountSidW) lib.resolve( "LookupAccountSidW" );
	    ptrAllocateAndInitializeSid = (PtrAllocateAndInitializeSid) lib.resolve( "AllocateAndInitializeSid" );
	    ptrBuildTrusteeWithSidW = (PtrBuildTrusteeWithSidW) lib.resolve( "BuildTrusteeWithSidW" );
	    ptrBuildTrusteeWithNameW = (PtrBuildTrusteeWithNameW) lib.resolve( "BuildTrusteeWithNameW" );
	    ptrGetEffectiveRightsFromAclW = (PtrGetEffectiveRightsFromAclW) lib.resolve( "GetEffectiveRightsFromAclW" );
	    ptrFreeSid = (PtrFreeSid) lib.resolve( "FreeSid" );
	    if ( ptrBuildTrusteeWithNameW ) {
		QLibrary versionLib("version");
		typedef DWORD (WINAPI *PtrGetFileVersionInfoSizeW)(LPWSTR lptstrFilename,LPDWORD lpdwHandle);
		PtrGetFileVersionInfoSizeW ptrGetFileVersionInfoSizeW = (PtrGetFileVersionInfoSizeW)versionLib.resolve("GetFileVersionInfoSizeW");
		typedef BOOL (WINAPI *PtrGetFileVersionInfoW)(LPWSTR lptstrFilename,DWORD dwHandle,DWORD dwLen,LPVOID lpData);
		PtrGetFileVersionInfoW ptrGetFileVersionInfoW = (PtrGetFileVersionInfoW)versionLib.resolve("GetFileVersionInfoW");
		typedef BOOL (WINAPI *PtrVerQueryValueW)(const LPVOID pBlock,LPWSTR lpSubBlock,LPVOID *lplpBuffer,PUINT puLen);
		PtrVerQueryValueW ptrVerQueryValueW = (PtrVerQueryValueW)versionLib.resolve("VerQueryValueW");
		if ( ptrGetFileVersionInfoSizeW && ptrGetFileVersionInfoW && ptrVerQueryValueW ) {
		    DWORD fakeHandle;
		    DWORD versionSize = ptrGetFileVersionInfoSizeW( L"secur32.dll", &fakeHandle );
		    if ( versionSize ) {
			LPVOID versionData;
			versionData = malloc(versionSize);
			if ( ptrGetFileVersionInfoW( L"secur32.dll", 0, versionSize, versionData ) ) {
			    UINT puLen;
			    VS_FIXEDFILEINFO *pLocalInfo;
			    if ( ptrVerQueryValueW( versionData, L"\\", (void**)&pLocalInfo, &puLen ) ) {
				WORD wVer1, wVer2, wVer3, wVer4;
				wVer1 = HIWORD(pLocalInfo->dwFileVersionMS);
				wVer2 = LOWORD(pLocalInfo->dwFileVersionMS);
				wVer3 = HIWORD(pLocalInfo->dwFileVersionLS);
				wVer4 = LOWORD(pLocalInfo->dwFileVersionLS);
				// It will not work with secur32.dll version 5.0.2195.2862
				if ( !(wVer1 == 5 && wVer2 == 0 && wVer3 == 2195 && (wVer4 == 2862 || wVer4 == 4587) ) ) {
				    QLibrary userLib("secur32");
				    typedef BOOL (WINAPI *PtrGetUserNameExW)(EXTENDED_NAME_FORMAT nameFormat, ushort* lpBuffer, LPDWORD nSize);
				    PtrGetUserNameExW ptrGetUserNameExW = (PtrGetUserNameExW)userLib.resolve( "GetUserNameExW" );
				    if ( ptrGetUserNameExW ) {
					static TCHAR buffer[258];
					DWORD bufferSize = 257;
					ptrGetUserNameExW( NameSamCompatible, (ushort*)buffer, &bufferSize );
					ptrBuildTrusteeWithNameW( &currentUserTrusteeW, (ushort*)buffer );
				    }
				}
			    }
			}
			free(versionData);
		    }
		}
	    }
	}
    }
#endif // QT_NO_COMPONENT
}


static QString currentDirOfDrive( char ch )
{
    QString result;

    QT_WA( {
	TCHAR currentName[PATH_MAX];
	if ( _wgetdcwd( toupper( (uchar) ch ) - 'A' + 1, currentName, PATH_MAX ) >= 0 ) {
	    result = QString::fromUcs2( (ushort*)currentName );
	}
    } , {
	char currentName[PATH_MAX];
	if ( _getdcwd( toupper( (uchar) ch ) - 'A' + 1, currentName, PATH_MAX ) >= 0 ) {
	    result = QString::fromLocal8Bit(currentName);
	}
    } );
    return result;
}


void QFileInfo::slashify( QString &s )
{
    for (int i=0; i<(int)s.length(); i++) {
	if ( s[i] == '\\' )
	    s[i] = '/';
    }
    if ( s[ (int)s.length() - 1 ] == '/' && s.length() > 3 )
	s.remove( (int)s.length() - 1, 1 );
}

void QFileInfo::makeAbs( QString &s )
{
    if ( s[ 1 ] != ':' && s[ 1 ] != '/' ) {
	s.prepend( ":" );
	s.prepend( _getdrive() + 'A' - 1 );
    }
    if ( s[ 1 ] == ':' && s.length() > 3 && s[ 2 ] != '/' ) {
	QString d = currentDirOfDrive( (char)s[ 0 ].latin1() );
	slashify( d );
	s = d + "/" + s.mid( 2, 0xFFFFFF );
    }
}

extern QCString qt_win95Name(const QString s);

bool QFileInfo::isFile() const
{
    if ( !fic || !cache )
	doStat();
    return fic ? (fic->st.st_mode & QT_STAT_MASK) == QT_STAT_REG : FALSE;
}

bool QFileInfo::isDir() const
{
    if ( !fic || !cache )
	doStat();
    return fic ? (fic->st.st_mode & QT_STAT_MASK) == QT_STAT_DIR : FALSE;
}

bool QFileInfo::isSymLink() const
{
    if ( fn.right( 4 ) == ".lnk" )
        return TRUE;
    else
        return FALSE;
}

QString QFileInfo::readLink() const
{
#if !defined(QT_NO_COMPONENT)
    QString fileLinked;

    QT_WA( {
	IShellLink *psl;                            // pointer to IShellLink i/f
	HRESULT hres;
	WIN32_FIND_DATA wfd;
	TCHAR szGotPath[MAX_PATH];
	// Get pointer to the IShellLink interface.

	hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
				    IID_IShellLink, (LPVOID *)&psl);

	if (SUCCEEDED(hres)) {    // Get pointer to the IPersistFile interface.
	    IPersistFile *ppf;
	    hres = psl->QueryInterface(IID_IPersistFile, (LPVOID *)&ppf);
	    if (SUCCEEDED(hres))  {
		hres = ppf->Load( (LPOLESTR)fn.ucs2(), STGM_READ);
		if (SUCCEEDED(hres)) {        // Resolve the link.

		    hres = psl->Resolve(0, SLR_ANY_MATCH);

		    if (SUCCEEDED(hres)) {
			memcpy( szGotPath, (TCHAR*)fn.ucs2(), (fn.length()+1)*sizeof(QChar) );
			hres = psl->GetPath( szGotPath, MAX_PATH, &wfd, SLGP_SHORTPATH );
			fileLinked = QString::fromUcs2( (ushort*)szGotPath );
		    }
		}
		ppf->Release();
	    }
	    psl->Release();
	}
    } , {
	IShellLinkA *psl;                            // pointer to IShellLink i/f
	HRESULT hres;
	WIN32_FIND_DATAA wfd;
	QString fileLinked;
	char szGotPath[MAX_PATH];
	// Get pointer to the IShellLink interface.

	hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
				    IID_IShellLinkA, (LPVOID *)&psl);

	if (SUCCEEDED(hres)) {    // Get pointer to the IPersistFile interface.
	    IPersistFile *ppf;
	    hres = psl->QueryInterface(IID_IPersistFile, (LPVOID *)&ppf);
	    if (SUCCEEDED(hres))  {
		hres = ppf->Load( (LPOLESTR)fn.ucs2(), STGM_READ);
		if (SUCCEEDED(hres)) {        // Resolve the link.

		    hres = psl->Resolve(0, SLR_ANY_MATCH);

		    if (SUCCEEDED(hres)) {
			QCString lfn = fn.local8Bit();
			memcpy( szGotPath, lfn.data(), (lfn.length()+1)*sizeof(char) );
			hres = psl->GetPath((char*)szGotPath, MAX_PATH, &wfd, SLGP_SHORTPATH);
			fileLinked = QString::fromLocal8Bit(szGotPath);

		    }
		}
		ppf->Release();
	    }