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   源码介绍

---

#include "stdafx.h"	
#include "../Types.h"//必须放在首位
#include "FileTransfer.h"
CString switchSize(ULONGLONG size)
{
	CString str;
	ULONGLONG d = 1024;
	if (size < d)
	{
		str.Format(_T("%lld"),size);
		str  = _T("Byte");
	}else if (size < d *d )
	{
		str.Format(_T("%.2lf"),(double)size/d);
		str  = _T("KB");
	}else if (size < d *d*d )
	{
		str.Format(_T("%.2lf"),(double)size/(d*d));
		str  = _T("MB");
	}else if (size < d *d*d*d )
	{
		str.Format(_T("%.2lf"),(double)size/(d*d*d));
		str  = _T("GB");
	}else
	{
		str.Format(_T("%.2lf"),(double)size/(d*d*d*d));
		str  = _T("TB");
	}

	return str;
}
UINT WINAPI runProccess(LPVOID lpParam)
{
	CFileTransfer* my = (CFileTransfer*)(lpParam);

	TRACE(_T("ID: %d start!\n"),my->getID());
	
	if (my->ServerOrClient == ROLE_SERVER)
	{
		if (my->mAccept()==false)
		{
			TRACE(_T("ID: %d accept failed!\n"),my->getID());
			return 0;
		}
		TRACE(_T("ID: %d accept success!\n"),my->getID());

	}else
	{
		if (my->mConnect()==false)
		{
			TRACE(_T("ID: %d Connect failed!\n"),my->getID());
			return 0;
		}
		TRACE(_T("ID: %d connect success!\n"),my->getID());
	}
	
	if (my->isFolder)
	{
		my->dealFolder();
	}else
	{
		if( my->dealFile())
		{
			TRACE(_T("ID: %d TRUE\n"),my->getID());
		}else
		{
			TRACE(_T("ID: %d FALSE\n"),my->getID());

		}

	}
	TRACE(_T("ID: %d finished!\n"),my->getID());
	return 1;	
}

void CFileTransfer::setParam(CString Path,CString title,ULONGLONG fileSize, BOOL isFolder,SOCKADDR_IN PeerAddr4,SOCKADDR_IN6 PeerAddr6, int family,int RecvOrSend,int ServerOrClient,int id)
{

	this->FilePath = Path;
	this->title = title;
	this->isFolder = isFolder;
	this->PeerAddr4 = PeerAddr4;
	this->PeerAddr4.sin_family = AF_INET;
	this->PeerAddr6 = PeerAddr6;
	this->family = family;
	this->RecvOrSend = RecvOrSend;
	this->ServerOrClient = ServerOrClient;
	this->speed = 0;
	this->TotalSize=fileSize;
	this->transferedSize =0;
	this->ID = id;
	this->bstop = FALSE;
	this->state = STATE_PENDING;
	this->m_socket = INVALID_SOCKET;
	this->hThread = NULL;
	TRACE(_T("creat one task.ID:%d\n"),this->ID);
	if (this->isFolder)
	{
		while (this->FilePath.GetAt(this->FilePath.GetLength()-1) == _T('\\'))
		{
			this->FilePath.Delete(this->FilePath.GetLength()-1);
		}
	}
	
}

int CFileTransfer::start(int port)
{

	
	if (hThread)
	{
		TRACE(_T("ID:%d is already  running.\n"),this->ID);
		return 0;
	}

	m_socket = socket(this->family,SOCK_STREAM,IPPROTO_TCP);
	if (m_socket == INVALID_SOCKET)
	{
		this->state=STATE_DEATH;
		return 0;
	}
	if (this->ServerOrClient == ROLE_SERVER)
	{
		int addrLen;
		if (this->family == AF_INET)
		{
			SOCKADDR_IN myaddr4;
			addrLen = sizeof(SOCKADDR_IN);
			myaddr4.sin_family = AF_INET;
			myaddr4.sin_port = 0;
			myaddr4.sin_addr.s_addr = INADDR_ANY;
			if(bind(m_socket,(SOCKADDR*)&myaddr4, addrLen) == SOCKET_ERROR|| getsockname(m_socket,(SOCKADDR*)&myaddr4,&addrLen) == SOCKET_ERROR)
				return 0;
			this->port = myaddr4.sin_port;

		}else
		{
			SOCKADDR_IN6 myaddr6;
			myaddr6.sin6_family = AF_INET6;
			myaddr6.sin6_port = 0;
			myaddr6.sin6_flowinfo = 0;
			myaddr6.sin6_addr = in6addr_any;
			myaddr6.sin6_scope_id = 0;
			addrLen = sizeof(SOCKADDR_IN6);
			if(bind(m_socket,(SOCKADDR*)&myaddr6, addrLen) == SOCKET_ERROR || getsockname(m_socket,(SOCKADDR*)&myaddr6,&addrLen) == SOCKET_ERROR)
				return 0;
			this->port = myaddr6.sin6_port;

		}

		//监听
		if ( SOCKET_ERROR  == listen(m_socket,SOMAXCONN))
		{
			return 0;

		}

	}else
	{
		this->port = port;
		this->PeerAddr4.sin_family = AF_INET;
		this->PeerAddr4.sin_port = port;
		this->PeerAddr6.sin6_family = AF_INET6;
		this->PeerAddr6.sin6_flowinfo = 0;
		this->PeerAddr6.sin6_scope_id = 0;
		this->PeerAddr6.sin6_port = port;
	}

	hThread = (HANDLE)_beginthreadex(NULL,NULL,runProccess,this,0,NULL);
	if (NULL == hThread)
	{
		return 0;
	}
	
	return this->port;

}
BOOL CFileTransfer::mAccept()
{
	int addrLen;
	this->state = STATE_CONNECT_RUNNING;
	SOCKET client_socket;
	if (this->family == AF_INET)
	{
		addrLen = sizeof(SOCKADDR_IN);
		client_socket = accept(m_socket,(SOCKADDR*)&(PeerAddr4),&addrLen);
		
	}else
	{
		addrLen = sizeof(SOCKADDR_IN6);
		client_socket = accept(m_socket,(SOCKADDR*)&(PeerAddr6),&addrLen);
	}
	closesocket(m_socket);
	m_socket = client_socket;
	//closesocket(client_socket);
	if(client_socket == INVALID_SOCKET )
	{
		this->state = STATE_CONNECT_FAIL;
		
		return FALSE;
	}
	else
	{
		this->state = STATE_CONNECT_SUCCESS;
		return TRUE;
	}
}
BOOL CFileTransfer::mConnect()
{
	this->state = STATE_CONNECT_RUNNING;
	int addrLen;
	if (this->family == AF_INET)
	{
		addrLen = sizeof(SOCKADDR_IN);
		if( connect(m_socket,(SOCKADDR*)&(PeerAddr4),addrLen) == SOCKET_ERROR)
		{
			this->state = STATE_CONNECT_FAIL;
			return FALSE;
		}

	}else
	{
		addrLen = sizeof(SOCKADDR_IN6);
		if( connect(m_socket,(SOCKADDR*)&(PeerAddr6),addrLen) == SOCKET_ERROR )			
		{
			this->state = STATE_CONNECT_FAIL;
			return FALSE;
		}
	}

	this->state = STATE_CONNECT_SUCCESS;
	return TRUE;
}

BOOL CFileTransfer::dealFolder()
{
	this->state = STATE_RUNNING;
	if (this->RecvOrSend == FILE_RECVER)
	{
		
		if (recvFolder())
		{
			this->state = STATE_FINISHED;
			return TRUE;
		}else
		{
			this->state = STATE_DEATH;
			return FALSE;
		}
	}else
	{
		if (sendFolder())
		{
			this->state = STATE_FINISHED;
			return TRUE;
		}else
		{
			this->state = STATE_DEATH;
			return FALSE;
		}
		
	}
	if (this->bstop)
	{
		this->state = STATE_STOP;
	}
}

BOOL CFileTransfer::dealFile()
{
	this->state = STATE_RUNNING;
	if (this->RecvOrSend == FILE_RECVER)
	{
		TRACE(_T("start recv!\n"));
		if (recvFile(this->FilePath,this->TotalSize))
		{
			this->state = STATE_FINISHED;
			return TRUE;
		}else
		{
			this->state = STATE_DEATH;
			return FALSE;
		}


	}else
	{
		TRACE(_T("start send!\n"));
		if ( sendFile(this->FilePath) )
		{
			this->state = STATE_FINISHED;
			return TRUE;
		}else
		{
			this->state = STATE_DEATH;
			return FALSE;
		}
	}
	if (this->bstop)
	{
		this->state = STATE_STOP;
	}
}
BOOL CFileTransfer::recvFolder()
{

	TRACE(_T("start recv folder!\n"));
	FILENODE fileNode;
	CString path;
	while(TRUE)
	{
		//接收指令
		ZeroMemory(&fileNode,sizeof(FILENODE));
		TRACE(_T("recving next order!\n"));
		if(SOCKET_ERROR == recv(this->m_socket,(char*)&fileNode,sizeof(FILENODE),0))
		{
			TRACE(_T("recv next order failed!\n"));
			
			return FALSE;
		}
		//结束指令
		if (fileNode.order == 4)//over 
		{
			TRACE(_T("recv  finished order!\n"));
			break;;
		}

		path = this->FilePath  _T("\\")   fileNode.fileName;
		//目录名
		if (fileNode.order == 3)//folder name
		{
			//创建目录
			SHCreateDirectoryEx(NULL,path,NULL);
			TRACE(_T("recv folder name\n"));
			//发送ACK
			fileNode.order = 2;	
			TRACE(_T("send ack: \n"));
			if (send(this->m_socket,(char*)&fileNode,sizeof(FILENODE),0)==SOCKET_ERROR)
			{
				TRACE(_T("send ack failed: %d\n"),GetLastError());
				return FALSE;
			}

			
		}else//文件名
		{
			//发送ACK
			TRACE(_T("recved file name: \n"));
			fileNode.order = 2;
			TRACE(_T("send ack: \n"));	
			if (send(this->m_socket,(char*)&fileNode,sizeof(FILENODE),0)==SOCKET_ERROR)
			{
				TRACE(_T("send ack failed: %d\n"),GetLastError());
				return FALSE;
			}
			//接收文件
			TRACE(_T("recving file: \n"));
			if ( recvFile(path,fileNode.fileSize)==FALSE )
			{
				TRACE(_T("recving file failed: %d\n "),GetLastError());
				return FALSE;
			}
			TRACE(_T("recv file success: \n"));
			//发送ACK
			fileNode.order = 2;
			TRACE(_T("send ack: \n"));
			if (send(this->m_socket,(char*)&fileNode,sizeof(FILENODE),0)==SOCKET_ERROR)
			{
				TRACE(_T("send ack failed: %d\n"),GetLastError());
				return FALSE;
			}
		}

	}
	TRACE(_T("finished recv folder!\n"));
	return TRUE;

}
BOOL CFileTransfer::sendFolder()
{
	if (DFSFolder(this->FilePath))
	{
		FILENODE fileNode;
		ZeroMemory(&fileNode,sizeof(FILENODE));	
		fileNode.order = 4;

		TRACE(_T("send over order\n"));
		if (send(this->m_socket,(char*)&fileNode,sizeof(FILENODE),0)==SOCKET_ERROR)
		{
			return FALSE;
		}
		return TRUE;

	}
	return FALSE;
}
BOOL CFileTransfer::DFSFolder(CString path)
{
	CFileFind finder;
	BOOL bWorking = finder.FindFile(path   _T("\\*.*"));
	ULONGLONG size = 0;
	FILENODE fileNode;
	
	if (bstop)
	{
		finder.Close();
		return FALSE;
	}

	//发送文件夹路径
	ZeroMemory(&fileNode,sizeof(FILENODE));
	int index = path.Find(title);
	lstrcpy(fileNode.fileName,path.Mid(index).LockBuffer());
	fileNode.order = 3;
	TRACE(_T("send folser name\n "));
	if (send(this->m_socket,(char*)&fileNode,sizeof(FILENODE),0)==SOCKET_ERROR)
	{
		return FALSE;
	}
	
	//等待对方的ack
	ZeroMemory(&fileNode,sizeof(FILENODE));
	TRACE(_T("recving ack: \n"));

	if(SOCKET_ERROR == recv(this->m_socket,(char*)&fileNode,sizeof(FILENODE),0))
	{
		return FALSE;
	}
	if (fileNode.order != 2)
	{
		return FALSE;
	}
	TRACE(_T("recved ack: \n"));
	//收到ACK
	while (bWorking)
	{

		if (bstop)
		{
			finder.Close();
			return FALSE;

		}
		bWorking = finder.FindNextFile();
		if (finder.IsDots()|| finder.IsSystem())
			continue;
		CString path = finder.GetFilePath();
		if (finder.IsDirectory())
		{
			TRACE(_T("dfs: \n"));

			if (DFSFolder(path) == FALSE)
				return FALSE;
			
		}else
		{
			//发送文件名
			ZeroMemory(&fileNode,sizeof(FILENODE));
			index = path.Find(title);
			
			lstrcpy(fileNode.fileName,path.Mid(index).LockBuffer());
			fileNode.fileSize = finder.GetLength();
			fileNode.order = 1;

			TRACE(_T("send file name: \n"));

			if (send(this->m_socket,(char*)&fileNode,sizeof(FILENODE),0)==SOCKET_ERROR)
			{
				TRACE(_T("send file name failed: %d\n"),GetLastError());
				return FALSE;
			}
			//等待对方ACK
			ZeroMemory(&fileNode,sizeof(FILENODE));

			if(SOCKET_ERROR == recv(this->m_socket,(char*)&fileNode,sizeof(FILENODE),0))
			{
				return FALSE;
			}
			TRACE(_T("recved ack: \n"));
			//发送文件内容
			TRACE(_T("sending file: \n"));
			if (fileNode.order == 2 && sendFile(path) == FALSE)
			{
				return FALSE;
			}
			TRACE(_T("send file success: \n"));
			
			//等待对方的ack
			ZeroMemory(&fileNode,sizeof(FILENODE));
			TRACE(_T("recving ack: \n"));
			if(SOCKET_ERROR == recv(this->m_socket,(char*)&fileNode,sizeof(FILENODE),0))
			{
				return FALSE;
			}
			if (fileNode.order != 2)
			{
				return FALSE;
			}
			TRACE(_T("recved ack: \n"));

		}


	}
	finder.Close();
	return TRUE;
}

BOOL CFileTransfer::recvFile(CString path,ULONGLONG fileSize)
{
	CFile file;
	CFileException ex;


	if (file.Open(path,CFile::modeCreate|CFile::modeNoTruncate|CFile::modeWrite|CFile::shareExclusive ,&ex))
	{	
		file.SetLength(fileSize);
	

		file.SeekToBegin();
		this->state = STATE_RUNNING;

		DWORD time_s = GetTickCount();
		DWORD time_e;
		ULONGLONG RecvSize = 0;
		ULONGLONG RecvSizeEX = this->transferedSize;
		ULONGLONG ret;
		TRACE(_T("Recving!\n"));
		
		//接收
		while (RecvSize < fileSize)
		{
			if (bstop)
			{
				file.Close();
				return FALSE;
			}

			ret = recv(this->m_socket,data,sizeof(data),0);

			if(ret == 0 || ret == SOCKET_ERROR  || this->bstop)
			{
	
				file.Close();
				return FALSE;
			}
			//this->transferedSize  = ret;
			RecvSize  = ret;
			this->transferedSize  = ret;

			file.Write(data,ret);//写入文件

			time_e = GetTickCount();
			if(time_e - time_s >= 1000)
			{
				this->speed = (this->transferedSize - RecvSizeEX) / ( (time_e - time_s) / 1000);
				RecvSizeEX = this->transferedSize;
				time_s = time_e;
			}

		}
		file.Close();
		return TRUE;
	}
	//TCHAR szError[1024];
	//ex.GetErrorMessage(szError, 1024);
	file.Close();
	return FALSE;
}
BOOL CFileTransfer::sendFile(CString path)
{
	//初始化
	CFile file(path,CFile::modeRead|CFile::shareDenyWrite);			
	ULONGLONG fileSize = file.GetLength();
	file.SeekToBegin();//文件指针

	this->state = STATE_RUNNING;//线程状态

	DWORD time_s = GetTickCount();
	DWORD time_e;
	ULONGLONG sendSize = 0;
	ULONGLONG sendSizeEX = this->transferedSize;
	ULONGLONG ret,size,temp;
	TRACE(_T("Sending!\n"));
	//发送文件
	while (sendSize < fileSize)
	{
		if (bstop)
		{

			file.Close();
			return FALSE;
		}
		//读文件
		ret = file.Read(data,DATABLOCK);
		if (ret < 0)
		{

			file.Close();
			return FALSE;
		}
		size = 0;
		temp = 0;
		//发送
		while (size < ret)
		{
			temp = send(this->m_socket,data size,ret-size,0);
			if (temp == SOCKET_ERROR || this->bstop)
			{
				file.Close();
				return FALSE;
			}

			size  = temp ;

		}
		//this->transferedSize  = ret;
		sendSize  = ret;
		this->transferedSize  = ret;
		//计算传输速度
		time_e = GetTickCount();
		if(time_e - time_s >= 1000)
		{
			this->speed = (this->transferedSize - sendSizeEX) / ( (time_e - time_s) / 1000);
			sendSizeEX = this->transferedSize;
			time_s = time_e;
		}
	}

	
	file.Close();
	return TRUE;
}

























void CFileTransfer::setState(int state)
{

	this->state = state;
}
int CFileTransfer::getState()
{
	return this->state;
}
int CFileTransfer::getID()
{
	return this->ID;
}
CString CFileTransfer::getSpeed()
{
	return switchSize(this->speed) _T("/s");
}
CString CFileTransfer::getPecent()
{
	CString str;
	if (this->TotalSize == 0)
	{
		str = _T("100");
	}else
	{
		str.Format(_T("%0.2f"),100.0* (double)this->transferedSize / (double)this->TotalSize);
	}
	
	str  = _T("%");
	return str;
}
CString CFileTransfer::getAlreadyCompelete()
{
	return switchSize(this->transferedSize);
}
CString CFileTransfer::getSendOrRecver()
{
	if (this->RecvOrSend == FILE_RECVER)
	{
		return _T("接收");

	}
	return _T("发送");

}
CString CFileTransfer::getTitle()
{
	return this->title;
}
void CFileTransfer::deleteAll()
{
	//_endthreadex(hThread);
	CloseHandle(hThread);
	closesocket(m_socket);
}
ULONGLONG CFileTransfer::getFolderSize(CString path)
{
	CFileFind finder;
	BOOL bWorking = finder.FindFile(_T("*.*"));
	ULONGLONG size = 0;
	while (bWorking)
	{
		bWorking = finder.FindNextFile();
		if (finder.IsDots())
			continue;

		if (finder.IsDirectory())
		{
			size  = getFolderSize(finder.GetFilePath());
		}else
		{
			size  =finder.GetLength();
		}


	}
	finder.Close();
	return size;
}
void CFileTransfer::stop()
{
	this->bstop = TRUE;
	WaitForSingleObject(hThread,INFINITE);
}