/// <summary>
/// 发送文件初始化；发送文件前先发一个小包让对方进行确认
/// </summary>
/// <param name="date">数据</param>
/// <param name="textCode">什么文件</param>
/// <param name="state">StateBase</param>
/// <returns>加密之后的包头</returns>
internal static byte[] SendHeadEncryption(byte[] date, byte textCode, StateBase state)
{
state.SendFile = new FileBase(date);
state.SendFile.FileLabel = RandomPublic.RandomNumber(14562);
byte[] headDate = new byte[11];
headDate[0] = PasswordCode._bigDateCode; headDate[1] = PasswordCode._fileHeadCode; headDate[2] = textCode;
ByteToDate.IntToByte(state.SendFile.FileLabel, 3, headDate);
ByteToDate.IntToByte(date.Length, 7, headDate);
return(headDate);
}
/// <summary>
/// 一个普通的对数据主体部分进行加密；
/// </summary>
/// <param name="date">要加密的数据</param>
/// <param name="textCode"></param>
/// <param name="state">StateBase</param>
/// <returns>加密之后的数据</returns>
private static byte[] encryptionTemporary(byte[] date, byte textCode, StateBase state)
{
if (date.Length > state.BufferSize - 20)
{
return(EncryptionDecryptSeparateDate.SendHeadEncryption(date, textCode, state)); //超出通过文件系统发送
}
state.SendDateLabel = RandomPublic.RandomNumber(16787); //给发送的数据进行编号
byte[] dateOverall = ByteToDate.OffsetEncryption(date, state.SendDateLabel, 2);
dateOverall[0] = PasswordCode._commonCode; dateOverall[1] = textCode;
return(dateOverall);
}
/// <summary>
/// 发送文件
/// </summary>
/// <param name="fileLable">文件标签</param>
/// <param name="fileName">文件地址</param>
/// <param name="stateOne">StateBase</param>
/// <returns>形成之后的数据</returns>
internal byte[] Send(ref int fileLable, string fileName, StateBase stateOne)
{
int fileLenth = 0;
FileStream fs;
try
{
fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
fileLenth = (int)fs.Length;
}
catch (Exception Ex) { throw new Exception(Ex.Message); }
fileLable = RandomPublic.RandomNumber(16787);
FileState fileState = new FileState(fileLable, fileLenth, fileName, fs);
fileState.StateOne = stateOne;
FS.Add(fileState);
byte[] haveByte = EncryptionDecryptFile.FileHeadEncryption(fileState);
return(haveByte);
}
/// <summary> 启动客户端基础的一个线程 </summary>
private void start()
{
// 如果是重连的延迟10秒
if (reconnectOn)
{
Thread.Sleep(9000 + RandomPublic.RandomTime(1000));
}
try
{
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socket.SendTimeout = 1000;
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.NoDelay, true);
socket.BeginConnect(IpEndPoint, new AsyncCallback(AcceptCallback), socket);
loginTimeout(socket);//超时判断方法
}
catch (Exception Ex)
{
loginFailure(Ex.Message);//登录失败触发
}
}