/// <summary>
/// 获得当前路径下ftp对象的数组.
/// </summary>
/// <returns></returns>
public FtpFileSystemInfo[] GetFtpFileSystemInfos()
{
try
{
List <FtpFileSystemInfo> infos = new List <FtpFileSystemInfo>();
FtpWebRequest ftp = (FtpWebRequest)WebRequest.Create(new Uri(Uri));
ftp.Credentials = new NetworkCredential(BaseUri.UserID, BaseUri.Password);
ftp.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
ftp.UsePassive = false;
using (WebResponse response = ftp.GetResponse())
{
using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default))
{
List <string> result = new List <string>();
while (!reader.EndOfStream)
{
result.Add(reader.ReadLine());
}
foreach (var item in result)
{
FtpFileSystemInfo ftpFileSystemInfo = TranslateTo(item);
if (ftpFileSystemInfo != null)
{
infos.Add(ftpFileSystemInfo);
}
}
}
}
return(infos.ToArray());
}
catch (Exception)
{
return(null);
}
}
public override void Doing()
{
string fileName;
if (!IsFullName)
{
fileName = Uri + Key.ParentUri + Key.DisplayName;
}
else
{
fileName = Uri;
}
FtpFileSystemInfo.SplitUri(fileName, out string d, out string dn);
if (!Directory.Exists(d))
{
Directory.CreateDirectory(d);
}
using (FileStream stream = new FileStream(fileName, FileMode.Append))
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(new Uri(Key.Uri));
request.Method = WebRequestMethods.Ftp.DownloadFile;
request.UseBinary = true;
request.UsePassive = false;
request.ContentOffset = stream.Length;
Info.Current = stream.Length;
request.Credentials = new NetworkCredential(Key.BaseUri.UserID, Key.BaseUri.Password);
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
using (Stream ftpstream = response.GetResponseStream())
{
int bufferSize = 2048;
int readCount;
byte[] buffer = new byte[bufferSize];
stream.Position = stream.Length;
Info.Size = Key.Size;
//指定内部取消.
while (true)
{
if (isCanceling)
{
ProcessState = ProcessState.Waiting;
isCanceling = false;
break;
}
else
{
readCount = ftpstream.Read(buffer, 0, bufferSize);
if (readCount > 0)
{
stream.Write(buffer, 0, readCount);
Info.Current += readCount;
ProcessState = ProcessState.Doing;
}
else
{
ProcessState = ProcessState.Completed;
break;
}
}
}
}
}
}
}
