/// <summary>
/// 检测文件夹是否存在
/// </summary>
/// <param name="ftpInfomation">FTP基本信息模型（父文件夹路径）</param>
/// <param name="dirName">检测文件夹名称</param>
/// <param name="errMsg">[OUT]错误信息</param>
/// <returns>检测情况</returns>
public static EExistence CF_IsExistDirectory(ModFtpInfomation ftpInfomation, string dirName, out string errMsg)
{
EExistence result = EExistence.Error;
try
{
List <ModFileInfo> files = CF_GetDirectory(ftpInfomation, out errMsg);
if (files != null)
{
if (files.Find(item => item.Name == dirName) != null)
{
result = EExistence.Exist;
}
else
{
result = EExistence.NotExist;
}
}
}
catch (Exception ex)
{
errMsg = ex.Message;
result = EExistence.Error;
}
return(result);
}
/// <summary>
/// 删除文件夹
/// </summary>
/// <param name="ftpInfomation">FTP基本信息模型（父文件夹路径）</param>
/// <param name="dirName">文件夹名称</param>
/// <param name="errMsg">[OUT]错误信息</param>
/// <returns>删除情况</returns>
public static bool CF_DeleteDirectory(ModFtpInfomation ftpInfomation, string dirName, out string errMsg)
{
bool result = false;
ftpInfomation.FtpReqInfo.CF_PushRequestPath();
try
{
EExistence isExist = CF_IsExistDirectory(ftpInfomation, dirName, out errMsg);
if (isExist == EExistence.NotExist)
{
errMsg = "目标文件夹不存在！";
result = false;
}
else if (isExist == EExistence.Exist)
{
ftpInfomation.FtpReqInfo.Method = EFtpRequestMethod.RemoveDirectory;
ftpInfomation.FtpReqInfo.RequestPath = ftpInfomation.GetCombinePath(dirName);
FtpWebResponse ftpWebResponse = CF_GetFtpResponse(ftpInfomation, out errMsg);
if (ftpWebResponse != null)
{
ftpWebResponse.Close();
errMsg = "";
result = true;
}
}
}
catch (Exception ex)
{
errMsg = ex.Message;
result = false;
}
ftpInfomation.FtpReqInfo.CF_PopRequestPath();
return(result);
}
/// <summary>
/// 获取文件大小
/// </summary>
/// <param name="ftpInfomation">FTP基本信息模型（父文件夹路径）</param>
/// <param name="fileName">文件名称</param>
/// <param name="errMsg">[OUT]错误信息</param>
/// <returns>文件大小</returns>
public static long CF_GetFileSize(ModFtpInfomation ftpInfomation, string fileName, out string errMsg)
{
long result = -1;
ftpInfomation.FtpReqInfo.CF_PushRequestPath();
try
{
EExistence isTarExist = CF_IsExistFile(ftpInfomation, fileName, out errMsg);
if (isTarExist == EExistence.NotExist)
{
errMsg = "目标文件不存在！";
result = -1;
}
else if (isTarExist == EExistence.Exist)
{
ftpInfomation.FtpReqInfo.Method = EFtpRequestMethod.GetFileSize;
ftpInfomation.FtpReqInfo.RequestPath = ftpInfomation.GetCombinePath(fileName);
FtpWebResponse ftpWebResponse = CF_GetFtpResponse(ftpInfomation, out errMsg);
if (ftpWebResponse != null)
{
result = ftpWebResponse.ContentLength;
ftpWebResponse.Close();
errMsg = "";
}
}
}
catch (Exception ex)
{
errMsg = ex.Message;
result = -1;
}
ftpInfomation.FtpReqInfo.CF_PopRequestPath();
return(result);
}
/// <summary>
/// 重命名文件夹
/// </summary>
/// <param name="ftpInfomation">FTP基本信息模型（父文件夹路径）</param>
/// <param name="orgDirName">原始文件夹名</param>
/// <param name="tarDirName">目标文件夹名</param>
/// <param name="errMsg">[OUT]错误信息</param>
/// <returns>重命名情况</returns>
public static bool CF_RenameDirectory(ModFtpInfomation ftpInfomation, string orgDirName, string tarDirName, out string errMsg)
{
bool result = false;
ftpInfomation.FtpReqInfo.CF_PushRequestPath();
try
{
EExistence isOrgExist = CF_IsExistDirectory(ftpInfomation, orgDirName, out errMsg);
if (isOrgExist == EExistence.NotExist)
{
errMsg = "待重命名文件夹不存在！";
result = false;
}
else if (isOrgExist == EExistence.Exist)
{
EExistence isTarExist = CF_IsExist(ftpInfomation, tarDirName, out errMsg);
if (isTarExist == EExistence.Exist)
{
errMsg = "已存在同名文件（夹）！";
result = false;
}
else if (isTarExist == EExistence.NotExist)
{
ftpInfomation.FtpReqInfo.Method = EFtpRequestMethod.Rename;
ftpInfomation.FtpReqInfo.RenameTo = ftpInfomation.GetCombinePath(tarDirName);
ftpInfomation.FtpReqInfo.RequestPath = ftpInfomation.GetCombinePath(orgDirName);
FtpWebResponse ftpWebResponse = CF_GetFtpResponse(ftpInfomation, out errMsg);
if (ftpWebResponse != null)
{
FtpStatusCode statusCode;
using (ftpWebResponse.GetResponseStream())
{
statusCode = ftpWebResponse.StatusCode;
}
if (statusCode == FtpStatusCode.CommandOK || statusCode == FtpStatusCode.FileActionOK)
{
errMsg = "";
result = true;
}
else
{
errMsg = "文件夹重命名错误！";
result = false;
}
}
}
}
}
catch (Exception ex)
{
errMsg = ex.Message;
result = false;
}
ftpInfomation.FtpReqInfo.CF_PopRequestPath();
return(result);
}
/// <summary>
/// 下载文件
/// </summary>
/// <param name="ftpInfomation">FTP基本信息模型</param>
/// <param name="fileName">FTP文件名</param>
/// <param name="filePath">本地文件路径</param>
/// <param name="overwrite">是否覆盖文件</param>
/// <param name="errMsg">[OUT]错误信息</param>
public static bool CF_DownloadFile(ModFtpInfomation ftpInfomation, string fileName, string filePath, bool overwrite, out string errMsg)
{
bool result = false;
ftpInfomation.FtpReqInfo.CF_PushRequestPath();
try
{
//判断FTP文件是否存在
EExistence isExistFile = CF_IsExistFile(ftpInfomation, fileName, out errMsg);
if (isExistFile == EExistence.NotExist)
{
errMsg = "FTP文件不存在！";
result = false;
}
else if (isExistFile == EExistence.Exist)
{
FileInfo file = new FileInfo(filePath);
//创建本地文件夹
if (!file.Directory.Exists)
{
file.Directory.Create();
}
bool isExist = file.Exists;
if (isExist)
{
//是否覆盖
if (!overwrite)
{
errMsg = "目标文件已存在！";
result = false;
}
else
{
isExist = false;
}
}
if (!isExist)
{
ftpInfomation.FtpReqInfo.Method = EFtpRequestMethod.DownloadFile;
ftpInfomation.FtpReqInfo.RequestPath = ftpInfomation.GetCombinePath(fileName);
FtpWebResponse ftpWebResponse = CF_GetFtpResponse(ftpInfomation, out errMsg);
if (ftpWebResponse != null)
{
using (Stream stream = ftpWebResponse.GetResponseStream())
{
using (FileStream fileStream = new FileStream(file.FullName, FileMode.Create, FileAccess.Write))
{
ModFtpTransSpeed transmissionSpeed = ftpInfomation.FtpReqInfo.DownloadSpeed;
if (transmissionSpeed.EnableLimit)
{
//缓存字节数
int bufferSize = transmissionSpeed.Speed * (int)Math.Pow(2, transmissionSpeed.Unit.CF_ToNumber());
//缓存
byte[] btBuffer = new byte[bufferSize];
//读取的字节数
int readSize = stream.Read(btBuffer, 0, bufferSize);
while (readSize > 0)
{
//写入服务器
fileStream.Write(btBuffer, 0, readSize);
readSize = stream.Read(btBuffer, 0, bufferSize);
//延时
if (readSize > 0)
{
Thread.Sleep(transmissionSpeed.Delay);
}
}
}
else
{
stream.CopyTo(fileStream);
}
}
}
}
result = true;
}
}
}
catch (Exception ex)
{
errMsg = ex.Message;
result = false;
}
ftpInfomation.FtpReqInfo.CF_PopRequestPath();
return(result);
}
/// <summary>
/// 上传文件
/// </summary>
/// <param name="ftpInfomation">FTP基本信息模型（目标文件路径）</param>
/// <param name="fileName">FTP文件名</param>
/// <param name="filePath">本地文件路径</param>
/// <param name="overwrite">是否覆盖文件</param>
/// <param name="errMsg">[OUT]错误信息</param>
public static bool CF_UploadFile(ModFtpInfomation ftpInfomation, string fileName, string filePath, bool overwrite, out string errMsg)
{
bool result = false;
ftpInfomation.FtpReqInfo.CF_PushRequestPath();
try
{
//判断原始文件是否存在
FileInfo file = new FileInfo(filePath);
if (!file.Exists)
{
errMsg = "本地文件不存在！";
result = false;
}
else
{
EExistence isExistDir = CF_IsExistDirectory(ftpInfomation, out errMsg);
if (isExistDir == EExistence.Exist || string.IsNullOrEmpty(ftpInfomation.GetCurrentName()))
{
//判断目标文件是否存在
EExistence isExistFile = CF_IsExistFile(ftpInfomation, fileName, out errMsg);
if (isExistFile == EExistence.Exist)
{
//是否覆盖
if (!overwrite)
{
errMsg = "目标文件已存在！";
result = false;
}
else
{
isExistFile = EExistence.NotExist;
}
}
if (isExistFile == EExistence.NotExist)
{
ftpInfomation.FtpReqInfo.Method = EFtpRequestMethod.UploadFile;
ftpInfomation.FtpReqInfo.RequestPath = ftpInfomation.GetCombinePath(fileName);
FtpWebRequest ftpWebRequest = CF_GetFtpRequest(ftpInfomation, out errMsg);
if (ftpWebRequest != null)
{
using (Stream stream = ftpWebRequest.GetRequestStream())
{
using (FileStream fileStream = new FileStream(file.FullName, FileMode.Open, FileAccess.Read))
{
ModFtpTransSpeed transmissionSpeed = ftpInfomation.FtpReqInfo.UploadSpeed;
if (transmissionSpeed.EnableLimit)
{
//缓存字节数
int bufferSize = transmissionSpeed.Speed * (int)Math.Pow(2, transmissionSpeed.Unit.CF_ToNumber());
//缓存
byte[] btBuffer = new byte[bufferSize];
//读取的字节数
int readSize = fileStream.Read(btBuffer, 0, bufferSize);
while (readSize > 0)
{
//写入本地文件
stream.Write(btBuffer, 0, readSize);
readSize = fileStream.Read(btBuffer, 0, bufferSize);
//延时
if (readSize > 0)
{
Thread.Sleep(transmissionSpeed.Delay);
}
}
}
else
{
fileStream.CopyTo(stream);
}
}
}
}
result = true;
}
}
else
{
errMsg = "目标文件夹不存在！";
result = false;
}
}
}
catch (Exception ex)
{
errMsg = ex.Message;
result = false;
}
ftpInfomation.FtpReqInfo.CF_PopRequestPath();
return(result);
}