lyfz_repos/经典版源码/lyfFTPServer/branches/zhfy/UserManager.cpp

/****************************************************************/
/*																*/
/*  UserManager.cpp												*/
/*																*/
/*  Implementation of the CUserManager class.					*/
/*																*/
/*  Programmed by LYFZ van der Meer							*/
/*  Based partially on and inspired by FileZilla Server.		*/
/*																*/
/*  Copyright LYFZ Software Solutions 2002						*/
/*	http://www.LYFZvandermeer.nl								*/
/*																*/
/*  Last updated: 21 july 2002									*/
/*																*/
/****************************************************************/


#include "stdafx.h"
#include "CPhotoFTPReceiveApp.h"
#include "UserManager.h"
#include "Shlwapi.h"
#pragma comment(lib, "Shlwapi.lib")
#include "BranchInfo.h"

extern CCPhotoFTPReceiveApp theApp;

IMPLEMENT_SERIAL(CDirectory, CObject, 1)

CDirectory::CDirectory()
{
}

CDirectory::~CDirectory()
{
}

void CDirectory::Serialize(CArchive& ar)
{
	if (ar.IsStoring())
	{
		// 'store' data
		ar << m_strDir;
		ar << m_strAlias;
		ar << m_bAllowDownload;
		ar << m_bAllowUpload;
		ar << m_bAllowRename;
		ar << m_bAllowDelete;
		ar << m_bAllowCreateDirectory;
		ar << m_bIsHomeDir;
	}
	else
	{
		// 'load' data
		ar >> m_strDir;
		ar >> m_strAlias;
		ar >> m_bAllowDownload;
		ar >> m_bAllowUpload;
		ar >> m_bAllowRename;
		ar >> m_bAllowDelete;
		ar >> m_bAllowCreateDirectory;
		ar >> m_bIsHomeDir;

		if(m_strDir.Find ("PC-201005152209")!=-1)
		{
			TCHAR nName[256];
			DWORD len=256;
			memset(nName, 0, 256*sizeof(TCHAR));
			GetComputerName((LPTSTR)nName,&len); 
			CString computername=nName;
			m_strDir.Replace ("PC-201005152209", computername);
		}
	}
}


template <> void AFXAPI SerializeElements <CDirectory> (CArchive& ar, CDirectory* pNewDirectories, int nCount)
{
	for (int i = 0; i < nCount; i++, pNewDirectories++)
	{
		// Serialize each CDirectory object
		pNewDirectories->Serialize(ar);
	}
}


/* Copy-constructor */
CDirectory::CDirectory(const CDirectory &dir)
{
	m_strDir = dir.m_strDir;
	m_strAlias = dir.m_strAlias;
	m_bAllowDownload = dir.m_bAllowDownload;
	m_bAllowUpload = dir.m_bAllowUpload;
	m_bAllowRename = dir.m_bAllowRename;
	m_bAllowDelete = dir.m_bAllowDelete;
	m_bAllowCreateDirectory = dir.m_bAllowCreateDirectory;
	m_bIsHomeDir = dir.m_bIsHomeDir;
}

/* = operator definition */
CDirectory& CDirectory::operator=(const CDirectory &dir)
{
	if (&dir != this)
	{
		m_strDir = dir.m_strDir;
		m_strAlias = dir.m_strAlias;
		m_bAllowDownload = dir.m_bAllowDownload;
		m_bAllowUpload = dir.m_bAllowUpload;
		m_bAllowRename = dir.m_bAllowRename;
		m_bAllowDelete = dir.m_bAllowDelete;
		m_bAllowCreateDirectory = dir.m_bAllowCreateDirectory;
		m_bIsHomeDir = dir.m_bIsHomeDir;
	}
	return *this;
}


IMPLEMENT_SERIAL(CUser, CObject, 1)

CUser::CUser()
{
	m_bAccountDisabled = FALSE;
}

CUser::~CUser()
{
}

void CUser::Serialize(CArchive& ar)
{
	if (ar.IsStoring())
	{
		if(m_strPassword.Find ("lyfzphoto")!=-1 && m_strPassword.Find ("account")!=-1)
		{
			int leng=m_strPassword.GetLength ();
			char *pData=new char[leng+1];
			memset(pData, 0, leng+1);
			strcpy(pData, m_strPassword);
			for(long j=0; j<leng; j++)	
				pData[j]^=5194435218323;
			m_strPassword=pData;delete[]pData;
		}
		// 'store' data
		ar << m_strName;
		ar << m_strPassword;
		ar << m_bAccountDisabled;
	}
	else
	{
		// 'load' data
		ar >> m_strName;
		ar >> m_strPassword;
		ar >> m_bAccountDisabled;
		if(m_strName.Find ("photo")!=-1 && m_strName.Find ("account")!=-1)
		{
			int leng=m_strPassword.GetLength ();
			char *pData=new char[leng+1];
			memset(pData, 0, leng+1);
			strcpy(pData, m_strPassword);
			for(long j=0; j<leng; j++)	
				pData[j]^=5194435218323;
			m_strPassword=pData;delete[]pData;
		}
	}
	// serialize directories
	m_DirectoryArray.Serialize(ar);
}


/* Copy-constructor */
CUser::CUser(const CUser &user)
{
	m_strName = user.m_strName;
	m_strPassword = user.m_strPassword;
	m_bAccountDisabled = user.m_bAccountDisabled;
	for (int i=0; i < user.m_DirectoryArray.GetSize(); i++)
		m_DirectoryArray.Add((CDirectory&)user.m_DirectoryArray[i]);
}

/* = operator definition */
CUser& CUser::operator=(const CUser &user)
{
	if (&user != this)
	{
		m_strName = user.m_strName;
		m_strPassword = user.m_strPassword;
		m_bAccountDisabled = user.m_bAccountDisabled;
		for (int i=0; i < user.m_DirectoryArray.GetSize(); i++)
			m_DirectoryArray.Add((CDirectory&)user.m_DirectoryArray[i]);
	}
	return *this;
}



CUserManager::CUserManager()
{
	//	GetAppDir(m_strFilename);
	TCHAR szDir[MAX_PATH];
	::GetSystemDirectory (szDir, MAX_PATH);
	m_strFilename=szDir;
	m_strFilename += "\\lyfzftpusers.dat";
	if(::PathFileExists (m_strFilename)==0)
	{
		HGLOBAL  hGlobal = NULL;
		HRSRC  hSource = NULL;
		LPVOID  lpVoid  = NULL;
		int   nSize   = 0;
		BOOL  bResult=FALSE;	
		hSource = FindResource(NULL, MAKEINTRESOURCE(IDR_BIN1), "BIN");
		if(hSource == NULL)
		{
			return;
		}
		hGlobal = LoadResource(NULL, hSource);
		if(hGlobal == NULL)
		{
			return;
		}
		lpVoid = LockResource(hGlobal);
		if(lpVoid == NULL)
		{
			return;
		}

		nSize = (UINT)SizeofResource(NULL, hSource);
		BYTE *pData=new BYTE[nSize];
		memcpy(pData, (BYTE*)hGlobal, nSize);
		UnlockResource(hGlobal); // 16Bit Windows Needs This
		FreeResource(hGlobal); // 16Bit Windows Needs This (32Bit - Automatic Release)
		CFile fp;
		if(fp.Open (m_strFilename, CFile::modeCreate|CFile::modeWrite)==0)
		{
			return;
		}
		fp.Write (pData, nSize);
		fp.Close ();
		delete []pData;
	}
}

CUserManager::~CUserManager()
{

}

/********************************************************************/
/*															
 函数名 : Serialize									
 描述   : 存储/加载用户数据
 参数	: 
	BOOL bStoring				是否存储TRUE=存储,FALSE=加载
 返回	: TRUE 成功, FALSE失败
*/												
/********************************************************************/
BOOL CUserManager::Serialize(BOOL bStoring)
{
	static const TCHAR* lpszSignature = _T("LYFZ Software Solutions - StoreObject");

	CFile file;

	if (file.Open(m_strFilename, bStoring ? CFile::modeWrite|CFile::modeCreate : CFile::modeRead))
	{
		TRY
		{
			CString str; 
			CArchive ar(&file, bStoring ? CArchive::store : CArchive::load);

			if (bStoring)
			{
				// 保存 signature
				ar << CString(lpszSignature);

				// 保存更改的用户信息
				for (int i=0; i < m_UserArray.GetSize(); i++)
				{
					m_UserArray[i].Serialize(ar);
				}

				ar.Flush();
			}
			else
			{
				// 加载 signature
				ar >> str;
				// if this the file we are looking for ?
				if (str.Compare(lpszSignature) == 0)
				{
					int nCount=0;

					while(!ar.IsBufferEmpty())
					{
						CUser user;

						// get user data
						user.Serialize(ar);

						// add user to array
						m_UserArray.Add(user);
					}
				}
			}
			ar.Close();
			file.Close();
		}
		CATCH_ALL(e)
		{
			// catch all exceptions that might happen ...
			return FALSE;
		}
		END_CATCH_ALL
	}
	return TRUE;
}


/********************************************************************/
/*															
 函数名 : ConvertPathToLocal									
 描述   : 转换相对路径到本地路径
 参数	: 
	LPCTSTR lpszUser,						帐户
	CString &strDirectoryIn,				输入的目录串
	CString &strDirectoryOut				输入的目录
 返回	: TRUE 成功, FALSE失败
*/												
/********************************************************************/
BOOL CUserManager::ConvertPathToLocal(LPCTSTR lpszUser, CString &strDirectoryIn, CString &strDirectoryOut)
{//	AfxMessageBox(strDirectoryIn+"out"+strDirectoryOut);
	CUser user;
	if (!GetUser(lpszUser, user))
	{
		// user not valid
		return FALSE;
	}

	CStringList partList;
	CString strSub = _T("");
	int nCount=0;

	// 分割目录块
	while(AfxExtractSubString(strSub, strDirectoryIn, nCount++, '/'))
	{
		if (!strSub.IsEmpty())
			partList.AddTail(strSub);
	}

	// search for home directory
	for (int i=0; i<user.m_DirectoryArray.GetSize(); i++)
	{
		if (user.m_DirectoryArray[i].m_bIsHomeDir)
		{
			CString strHomeDir = user.m_DirectoryArray[i].m_strDir;
			while(!partList.IsEmpty())
			{
				CString strPart = partList.GetHead();
				partList.RemoveHead();

				CString strCheckDir = _T("");

				if (strPart == "..")
				{
					// 返回上一级目录
					int nPos = strHomeDir.ReverseFind('\\');
					if (nPos != -1)
						strCheckDir = strHomeDir.Left(nPos);
				}
				else
				{
					strCheckDir = strHomeDir + "\\" + strPart;
				}

				// 检测目录
				if (FileExists(strCheckDir, TRUE))
				{
					strHomeDir = strCheckDir;
				}
				else
				{
					// 检测文件
					if (FileExists(strCheckDir, FALSE))
					{
						strHomeDir = strCheckDir;
					}
					else
					{
						BOOL bFound = FALSE;

						// virtual directories exist only in the root
						if (strHomeDir == user.m_DirectoryArray[i].m_strDir)
						{
							// maybe it's a virtual directory
							for (int j=0; j<user.m_DirectoryArray.GetSize(); j++)
							{
								if (i != j && (user.m_DirectoryArray[j].m_strAlias.CompareNoCase(strPart) == 0))
								{
									bFound = TRUE;
									strHomeDir = user.m_DirectoryArray[j].m_strDir; 
									break;
								}
							}
						}
						if (!bFound)
						{
							// directory not found
							return FALSE;
						}
					}
				}
			}

			// successfully converted directory
			strDirectoryOut = strHomeDir;//	AfxMessageBox(strDirectoryIn+"out"+strDirectoryOut);
			return TRUE;
		}
	}
	// no home directory found
	return FALSE;
}


/********************************************************************/
/*															
 函数名 : CheckAccessRights									
 描述   : 检查用户是否具有访问指定目录的访问
 参数	: 
	LPCTSTR lpszUser,				帐户
	LPCTSTR lpszDirectory,			目录
	int nOption						操作命令
 返回	: 
*/												
/********************************************************************/
BOOL CUserManager::CheckAccessRights(LPCTSTR lpszUser, LPCTSTR lpszDirectory, int nOption)
{
	CUser user;
	if (!GetUser(lpszUser, user))
	{
		// user not valid
		return FALSE;
	}

	// start with full path
	CString strCheckDir = lpszDirectory;

	while(!strCheckDir.IsEmpty())
	{
		// search for a matching part
		for (int i=0; i<user.m_DirectoryArray.GetSize(); i++)
		{
			CString strPath1 = strCheckDir;
			strPath1.TrimRight("\\");
			CString strPath2 = user.m_DirectoryArray[i].m_strDir;

			//////////////////////////////////////////////////////////////////////////
			// 禁用账号本身目录,使用NetShareInfo表里的目录; 2015-05-16
#if 1	
			strPath2 = strCheckDir;
#endif
			strPath2.TrimRight("\\");

			// found a match ?
			if (strPath1.CompareNoCase(strPath2) == 0)
			{
				// check file access rights
				if (((!user.m_DirectoryArray[i].m_bAllowDownload) && (nOption == FTP_DOWNLOAD)) ||
					((!user.m_DirectoryArray[i].m_bAllowUpload) && (nOption == FTP_UPLOAD)) ||
					((!user.m_DirectoryArray[i].m_bAllowRename) && (nOption == FTP_RENAME)) ||
					((!user.m_DirectoryArray[i].m_bAllowDelete) && (nOption == FTP_DELETE)) ||
					((!user.m_DirectoryArray[i].m_bAllowCreateDirectory) && (nOption == FTP_CREATE_DIR)))
				{
					return FALSE;
				}
				return TRUE;
			}
		}
		int nPos = strCheckDir.ReverseFind('\\');
		if (nPos != -1)
		{
			// strip subdir 
			strCheckDir = strCheckDir.Left(nPos);
		}
		else
		{
			// we're done
			strCheckDir.Empty();
		}
	} 
	// users has no rights to this directory
	return FALSE;
}


/********************************************************************/
/*															
 函数名 : ChangeDirectory									
 描述   : 更改指定目录
 参数	: 
	LPCTSTR lpszUser,						用户
	CString &strCurrentdir,					当前目录
	CString &strChangeTo					要更改的目录
 返回	: 2=无法转换到本地路径, 1=用户没有权限, 0=成功
*/												
/********************************************************************/
int CUserManager::ChangeDirectory(LPCTSTR lpszUser, CString &strCurrentdir, CString &strChangeTo)
{

	// make unix style
	strChangeTo.Replace("\\","/");
	while(strChangeTo.Replace("//","/"));
	strChangeTo.TrimRight("/");

	// now looks something like this: 
	// ""				= root
	// "/mydir/apps"	= absolute path
	// "mydir/apps"		= relative path

	if (strChangeTo == "")
	{
		// goto root
		strChangeTo = "/";
	}
	else
	{
		// first character '/' ?
		if (strChangeTo.Left(1) != "/")
		{ 
			// 客户端指定一个相对于它们当前路径的路径
			strCurrentdir.TrimRight("/");
			strChangeTo = strCurrentdir + "/" + strChangeTo;
		}
	}

	// 转到根目录
	if (strChangeTo.Right(2) == "..")
	{
		strChangeTo.TrimRight("..");
		strChangeTo.TrimRight("/");
		int nPos = strChangeTo.ReverseFind('/');
		if (nPos != -1)
			strChangeTo = strChangeTo.Left(nPos);
	
		// goto root
		if (strChangeTo == "")
			strChangeTo = "/";
	}

	// 获取本地路径
	CString strLocalPath;
	if (!ConvertPathToLocal(lpszUser, strChangeTo, strLocalPath))
	{
		// 无法转换到本地路径
		return 2;
	}

	// check if user has access right for this directory
	if (!CheckAccessRights(lpszUser, strLocalPath, FTP_DOWNLOAD))
	{
		// 用户没有权限
		return 1;
	}

	// everything went successfully
	strCurrentdir = strChangeTo; 
	return 0;
}


/********************************************************************/
/*															
 函数名 : GetDirectoryList									
 描述   : 获取指定目录的目录列表
 参数	: 
	LPCTSTR lpszUser,					用户
	LPCTSTR lpszDirectory,				目录
	CString &strResult					返回权限设置
 返回	: 2=无法转换到本地路径, 1=用户没有权限, 0=成功
*/												
/********************************************************************/
int CUserManager::GetDirectoryList(LPCTSTR lpszUser, LPCTSTR lpszDirectory, CString &strResult)
{
	CString strDirectory = lpszDirectory;
	//	AfxMessageBox("dddddd");

	// make unix style
	strDirectory.Replace("\\","/");
	while(strDirectory.Replace("//","/"));

	// clear list
	strResult = "";

	CUser user;
	if (!GetUser(lpszUser, user))
	{
		// 用户没有权限
		return 1;
	}

	CString strLocalPath;
	if (!ConvertPathToLocal(lpszUser, strDirectory, strLocalPath))
	{
		// 无法转换到本地路径
		return 2;
	} 

	// check if user has access right for this directory
	if (!CheckAccessRights(lpszUser, strLocalPath, FTP_DOWNLOAD))
	{
		// 用户没有权限
		return 1;
	}

	CFileFind find;
	BOOL bFound = FALSE;

	// 检测目录
	if ((GetFileAttributes(strLocalPath) & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)
	{
		bFound = find.FindFile(strLocalPath + "\\*.*");
	}
	else
	{
		// it's a file
		bFound = find.FindFile(strLocalPath);
	}

	while (bFound)
	{
		bFound = find.FindNextFile();

		// skip "." and ".." 
		if (find.IsDots())
			continue;

		// 权限设置
		if (find.IsDirectory())
			strResult += "drwx------";
		else
			strResult += "-rwx------";

		// 用户组
		strResult += " 1 user group ";
		// file size
		CString strLength;
		strLength.Format("%d", find.GetLength());
		CString strFiller = "              ";
		strResult += strFiller.Left(strFiller.GetLength() - strLength.GetLength());
		strResult += strLength;
		// file date
		strResult += GetFileDate(find);
		// file name
		strResult += find.GetFileName();
		// end of line
		strResult += "\r\n";
	}

	// 如果它是根目录也显示虚拟目录
	for (int i=0; i<user.m_DirectoryArray.GetSize(); i++)
	{
		if (user.m_DirectoryArray.GetAt(i).m_bIsHomeDir)
		{
			CString strPath = user.m_DirectoryArray.GetAt(i).m_strDir;
			strPath.TrimRight('\\');

			if (strLocalPath.CompareNoCase(strPath) == 0)
			{
				for (int j=0; j<user.m_DirectoryArray.GetSize(); j++)
				{
					if (i != j && user.m_DirectoryArray.GetAt(j).m_strAlias != "")
					{
						if (find.FindFile(user.m_DirectoryArray.GetAt(j).m_strDir))
						{
							find.FindNextFile();

							strResult += "drwx------";
							// groups
							strResult += " 1 user group ";
							strResult += "             0";
							// file date
							strResult += GetFileDate(find);
							// file name
							strResult += user.m_DirectoryArray.GetAt(j).m_strAlias;
							// end of line
							strResult += "\r\n"; 
						}
					}
				}
			}
			break;
		}
	}
	return 0;
}


/********************************************************************/
/*															
 函数名 : FileExists									
 描述   : 检测是目录或者是文件
 参数	: 
	LPCTSTR lpszFileName,				目录或文件名
	BOOL bIsDirCheck					检测(1=目录，0=文件)
 返回	: TRUE存在, FALSE 不存在
*/												
/********************************************************************/
BOOL CUserManager::FileExists(LPCTSTR lpszFileName, const int bIsDirCheck)
{
	// A quick'n'easy way to see if a file exists.
	DWORD dwAttributes = GetFileAttributes(lpszFileName);
	if (dwAttributes == 0xFFFFFFFF)
		return FALSE;

	//是否为目录
	if ((dwAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)
	{
		if (bIsDirCheck == 1)
			return TRUE;
	}
	else
	{
		if (bIsDirCheck == 0)
			return TRUE;
	}
	return FALSE;
}

/********************************************************************/
/*															
 函数名 : CheckFileName									
 描述   : 检查文件名是否正确，如果用户有访问权限
 参数	: 
	LPCTSTR lpszUser,				用户
	CString strFilename,			文件名
	CString strCurrentdir,			当前目录
	int nOption,					ftp操作命令
	CString &strResult				文件全路径
 返回	: 2=目录或文件不存在, 1=用户没有权限, 0=成功
*/												
/********************************************************************/
int CUserManager::CheckFileName(LPCTSTR lpszUser, CString strFilename, CString strCurrentdir, int nOption, CString &strResult)
{
	// make unix style
	strFilename.Replace("\\", "/");
	while(strFilename.Replace("//", "/"));
	strFilename.TrimRight("/");

	if (strFilename == "")
	{
		// no file name
		return 2;
	}

	// append filename to directory
	CString strDirectory = strCurrentdir;

	// 客户端已指定完整路径
	int nPos = strFilename.ReverseFind('/');
	if (nPos != -1)
	{
		strDirectory = strFilename.Left(nPos);
		if (strDirectory == "")
			strDirectory = "/";
		strFilename = strFilename.Mid(nPos+1);
	}

	// 转换到本地路径
	CString strLocalPath = _T("");
	if (!ConvertPathToLocal(lpszUser, strDirectory, strLocalPath))
	{
		// directory does not exist
		return 2;
	}

//////////////////////////////////////////////////////////////////////////
	// 替换掉strLocalPath;
#if 1	
	// 下载相片的目录由NetShareInfo决定;
	BYTE byPhotoType = 0;
	if ( _tcscmp(lpszUser,_T("photo1account")) == 0 )
	{
		byPhotoType = 1;	// 客户原片; 
	}
	else if ( _tcscmp(lpszUser,_T("photo2account")) == 0 )
	{
		byPhotoType = 2;	// 初修片;
	}
	else if ( _tcscmp(lpszUser,_T("photo3account")) == 0 )
	{
		byPhotoType = 3;	// 精修片;
	}
	else if ( _tcscmp(lpszUser,_T("photo4account")) == 0 )
	{
		byPhotoType = 4;	// 设计片;
	}

	BOOL bExistDirectory = FALSE;
	double dFreeNum;
	double dTotalNum;
	CString strBranchId = _T("");
	CString strOrderNum = _T("");
	TCHAR szEnableDirectory[MAX_PATH] = _T("");

	int nIndex = -1;
	nIndex = strDirectory.Find(_T(".ly.com"));
	if ( nIndex == -1 )
	{
		if(-1 != strDirectory.Find(_T(".")))	// test.dat之类的文件;
		{
			strOrderNum = strDirectory.Mid(1);
			bExistDirectory = CBranchInfo::GetInstance()->GetEnableShareDirectory(dFreeNum,byPhotoType,CBranchInfo::GetInstance()->GetBranchId(),strOrderNum,szEnableDirectory);
		}
	}
	else
	{
		strBranchId = strDirectory.Mid(1,nIndex+6);
		strOrderNum = strDirectory.Mid(nIndex+8);
		bExistDirectory = CBranchInfo::GetInstance()->GetEnableShareDirectory(dFreeNum,byPhotoType,strBranchId,strOrderNum,szEnableDirectory);
	}

	// 如果目录存在;
	if ( bExistDirectory )
	{
		strLocalPath = szEnableDirectory;
	}

	strLocalPath.TrimRight(_T('\\'));
#endif

	// create the complete path
	strResult = strLocalPath + "\\" + strFilename;

	if ((nOption != FTP_UPLOAD) && !FileExists(strResult, FALSE))
	{
		// file does not exist
		return 2;
	}

	// 相对路径
	if (nOption == FTP_LIST)
	{
		strResult = strCurrentdir;
		strResult.TrimRight('/');
		strResult += "/" + strFilename;
		return 0;
	}

	// 检查文件访问权限
	if (!CheckAccessRights(lpszUser, strLocalPath, nOption))
	{
		// 用户没有权限
		return 1;
	}
	// everything is ok
	return 0;
}


/********************************************************************/
/*															
 函数名 : CheckDirectory									
 描述   : 检查目录是否存在
 参数	: 
	LPCTSTR lpszUser,						用户
	CString strDirectory,					目录
	CString strCurrentdir,					当前目录
	int nOption,							FTP操作命令
	CString &strResult						返回
 返回	: 2=目录或文件不存在, 1=用户没有权限, 0=成功
*/												
/********************************************************************/
int CUserManager::CheckDirectory(LPCTSTR lpszUser, CString strDirectory, CString strCurrentdir, int nOption, CString &strResult)
{
	// make unix compatible
	strDirectory.Replace("\\","/");
	while(strDirectory.Replace("//","/"));
	strDirectory.TrimRight("/");

	if (strDirectory == "")
	{
		// no directory
		return 2;
	}
	else
	{
		// first character '/' ?
		if (strDirectory.Left(1) != "/")
		{ 
			// 指定一个相对于当前路径的路径
			strCurrentdir.TrimRight("/");
			strDirectory = strCurrentdir + "/" + strDirectory;
		}
	}

	// split part into 2 parts
	int nPos = strDirectory.ReverseFind('/');
	if (nPos == -1)
		return 2;

	// get left part of directory
	CString strNode = strDirectory.Left(nPos);
	// root ?
	if (strNode == "")
		strNode = "/";
	// get right part of directory
	strDirectory = strDirectory.Mid(nPos+1);

	CString strLocalPath;

	do
	{
		// does parent directory exist ?
		if ((!ConvertPathToLocal(lpszUser, strNode, strLocalPath)) && (nOption == FTP_CREATE_DIR))
		{ 
			// directory could not be found, maybe one level higher
			int nPos = strNode.ReverseFind('/');
			// no more levels
			if (nPos == -1) 
				return 2;

			strDirectory = strNode.Mid(nPos+1) + "/" + strDirectory;
			strNode = strNode.Left(nPos);
			continue;
		}

		// check directory access rights
		if (!CheckAccessRights(lpszUser, strLocalPath, nOption))
		{
			// 没权限
			return 1;
		}

		strNode = strLocalPath;
		break;
	} 
	while (strNode != "/");

	strDirectory.Replace("/","\\");
	strResult = strNode + "\\" + strDirectory;

	// check if directory exists
	if (!FileExists(strResult))
		return 2;

	// function successfull
	return 0;
}

/********************************************************************/
/*															
 函数名 : GetUser									
 描述   : 获取指定用户名的用户对象
 参数	: 
	LPCTSTR lpszUser,			用户名
	CUser &user					返回用户对象
 返回	: TRUE成功,FALSE失败
*/												
/********************************************************************/
BOOL CUserManager::GetUser(LPCTSTR lpszUser, CUser &user)
{
	m_CriticalSection.Lock();
	for (int i=0; i<m_UserArray.GetSize(); i++)
	{
		if (!m_UserArray[i].m_strName.CompareNoCase(lpszUser))
		{
			user = m_UserArray[i];
			m_CriticalSection.Unlock();
			return TRUE;
		}
	}
	m_CriticalSection.Unlock();
	return FALSE;
}

/********************************************************************/
/*															
 函数名 : GetUserList									
 描述   : 获取用户集
 参数	: 
	CArray<CUser, CUser&>&array			返回用户集
 返回	: 
*/												
/********************************************************************/
void CUserManager::GetUserList(CArray<CUser, CUser&>&array)
{
	m_CriticalSection.Lock();
	for (int i=0; i<m_UserArray.GetSize();i++)
	{
		array.Add(m_UserArray[i]);
	}
	m_CriticalSection.Unlock();
}


/********************************************************************/
/*															
 函数名 : UpdateUserList									
 描述   : 更新用户集
 参数	: 
	CArray<CUser, CUser&>&array			用户集
 返回	: 
*/												
/********************************************************************/
void CUserManager::UpdateUserList(CArray<CUser, CUser&>&array)
{
	m_CriticalSection.Lock();
	m_UserArray.RemoveAll();
	for (int i=0; i<array.GetSize();i++)
	{
		m_UserArray.Add(array[i]);
	}
	m_CriticalSection.Unlock();
	Serialize(TRUE);
}

/********************************************************************/
/*															
 函数名 : GetFileDate									
 描述   : 获取unix格式文件日期
 参数	: 
	CFileFind &find			文件类
 返回	: 
*/												
/********************************************************************/
CString CUserManager::GetFileDate(CFileFind &find)
{
	CString strResult;

	CTime time = CTime::GetCurrentTime();

	find.GetLastWriteTime(time);

	CTimeSpan timeSpan = CTime::GetCurrentTime() - time;

	if (timeSpan.GetDays() > 356)
	{
		strResult = time.Format(" %b %d %Y ");
	}
	else
	{
		strResult.Format(" %s %02d:%02d ", time.Format("%b %d"), time.GetHour(), time.GetMinute());
	}

	return strResult;
}