public void ListFinish(IAsyncResult ar)
{
FtpWebResponse response = null;
try
{
ListFileAsyncState stateObj = ar.AsyncState as ListFileAsyncState;
FtpWebRequest request = stateObj.Request;
_currentPath = stateObj.Path;
response = (FtpWebResponse)request.EndGetResponse(ar);
_result = response.StatusDescription;
ServerFiles = ServerFileInfo.Parse(response.GetResponseStream());
}
catch (Exception e)
{
if (response != null)
{
_result = response.StatusDescription;
}
else
{
_result = e.Message;
}
}
finally
{
if (response != null)
{
response.Close();
}
_listFileRequestFinished = true;
}
}
private void EndGetResponseCallback(IAsyncResult ar)
{
FtpWebRequest uploadRequest = (FtpWebRequest)ar.AsyncState;
//结束由BeginGetResponse启动的挂起的异步操作
FtpWebResponse uploadResponse = (FtpWebResponse)uploadRequest.EndGetResponse(ar);
Console.WriteLine(uploadResponse.StatusDescription);
Console.WriteLine("Upload complete");
}
private void UploadNextFile(IAsyncResult ar)
{
//清空
_currLength = 0;
_abort = false;
if (_uploadResponse != null)
{
_uploadResponse.Close();
}
if (_fileStream != null)
{
_fileStream.Close();
}
if (_requestStream != null)
{
_requestStream.Close();
}
_uploadResponse = (FtpWebResponse)_uploadRequest.EndGetResponse(ar);
//_result = "文件上传成功";
try
{
if (_uploadFiles.Count != 0)
{
FileInfo file = _uploadFiles[0] as FileInfo;
ServerFileInfo serverFile = SearchFile(file.Name.Replace('#', '_'));
if (serverFile != null)
{
_currLength = serverFile.Size;
}
else
{
_currLength = 0;
}
string uploadUrl = @"ftp://" + this.Address + ":" + this.Port + "/" + file.Name.Replace('#', '_');
_uploadRequest = (FtpWebRequest)WebRequest.Create(uploadUrl);
if ((bool)_uploadFilesStateTable[file])
{//覆盖
_uploadRequest.Method = WebRequestMethods.Ftp.UploadFile;
_currLength = 0;
}
else
{
_uploadRequest.Method = _currLength == 0 ? WebRequestMethods.Ftp.UploadFile : WebRequestMethods.Ftp.AppendFile;
}
_uploadRequest.Credentials = new NetworkCredential(this.UserName, this.Password);
_uploadRequest.Proxy = null;
_uploadRequest.KeepAlive = false;
_uploadRequest.BeginGetRequestStream(new AsyncCallback(TransFile), file);
}
}
catch (Exception e)
{
_result = e.Message;
}
}
private void DeleteFinish(IAsyncResult ar)
{
_deleteFileFinished = true;
FtpWebRequest _deleteRequest = ar.AsyncState as FtpWebRequest;
try
{
FtpWebResponse response = (FtpWebResponse)_deleteRequest.EndGetResponse(ar);
_result = response.StatusDescription;
response.Close();
}
catch (Exception e)
{
_result = e.Message;
}
}
// The EndGetResponseCallback method
// completes a call to BeginGetResponse.
private void EndGetResponseCallback(IAsyncResult ar)
{
FtpWebResponse response = null;
try
{
response = (FtpWebResponse) request.EndGetResponse(ar);
}
// Return exceptions to the main application thread.
catch (Exception e)
{
Console.WriteLine ("Error getting response.");
asyncException = e;
wait.Set();
}
Console.WriteLine("Upload status: {0}",response.StatusDescription);
// Signal the application thread that this operation is complete.
wait.Set();
}
private static MemoryStream DoOldStyleAsync(FtpWebRequest request, MemoryStream requestBody)
{
if (requestBody != null)
{
IAsyncResult ar = request.BeginGetRequestStream(null, null);
ar.AsyncWaitHandle.WaitOne();
Stream requestStream = request.EndGetRequestStream(ar);
requestBody.CopyTo(requestStream);
requestStream.Close();
}
IAsyncResult ar2 = request.BeginGetResponse(null, null);
ar2.AsyncWaitHandle.WaitOne();
FtpWebResponse response = (FtpWebResponse)request.EndGetResponse(ar2);
MemoryStream responseBody = new MemoryStream();
response.GetResponseStream().CopyTo(responseBody);
response.Close();
return(responseBody);
}
/// <summary>
/// Returns an IWebResponse.
/// </summary>
/// <param name="asyncResult">An System.IAsyncResult that references a pending request for a response.</param>
/// <returns>An IWebResponse that contains a response to the Internet request.</returns>
public override IWebResponse EndGetResponse(IAsyncResult asyncResult)
{
return(new FtpWebResponseAdapter((FtpWebResponse)_ftpWebRequest.EndGetResponse(asyncResult)));
}
private static MemoryStream DoOldStyleAsync(FtpWebRequest request, MemoryStream requestBody)
{
if (requestBody != null)
{
IAsyncResult ar = request.BeginGetRequestStream(null, null);
ar.AsyncWaitHandle.WaitOne();
Stream requestStream = request.EndGetRequestStream(ar);
requestBody.CopyTo(requestStream);
requestStream.Close();
}
IAsyncResult ar2 = request.BeginGetResponse(null, null);
ar2.AsyncWaitHandle.WaitOne();
FtpWebResponse response = (FtpWebResponse)request.EndGetResponse(ar2);
MemoryStream responseBody = new MemoryStream();
response.GetResponseStream().CopyTo(responseBody);
response.Close();
return responseBody;
}
