public List <FtpItem> GetFtpItemsByAbsolutelyUrl(string preurl)
{
var reg2 = new Regex("\\s\\d+?\\s");
var list = new List <FtpItem>();
var ftpRequest = (FtpWebRequest)WebRequest.Create(preurl);
ftpRequest.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
using (var reader = new StreamReader(ftpRequest.GetResponse().GetResponseStream())) {
string str;
while ((str = reader.ReadLine()) != null)
{
var item = new FtpItem {
ReviseTimestamp = str.Substring(0, 16),
};
if (str.IndexOf(DirTag) == -1)
{
item.FtpItemType = FtpItemType.File;
var sizestr = reg2.Match(str).Groups[0].Value;
item.OriSize = long.Parse(sizestr);
item.Name = str.Substring(str.IndexOf(sizestr) + sizestr.Length);
item.AbsoluteUri = new Uri(preurl + item.Name);
}
else
{
item.FtpItemType = FtpItemType.Folder;
item.Name = str.Substring(str.LastIndexOf(DirTag) + 5).TrimStart();
item.AbsoluteUri = new Uri(preurl + item.Name + "/");
}
list.Add(item);
}
}
return(list);
}
public List <FtpItem> GetFtpItems(FtpItem ftpItem)
{
if (ftpItem.FtpItemType == FtpItemType.Folder)
{
return(GetFtpItemsByAbsolutelyUrl(ftpItem.AbsoluteUri.ToString()));
}
throw new Exception("该方法只用于目录项");
}
private void GetAllChilds(FtpItem fpItem)
{
foreach (var item in fpItem.FolderItems)
{
if (item.FtpItemType == FtpItemType.Folder)
{
item.FolderItems = GetFtpItems(item);
GetAllChilds(item);
}
}
}
public static bool Exist(FtpItem item)
{
switch (item.FtpItemType)
{
case FtpItemType.File:
return(FileExist(item.AbsoluteUri.ToString()));
case FtpItemType.Folder:
return(FolderExist(item.AbsoluteUri.ToString()));
}
throw new ArgumentException("未定义的枚举");
}
/// <summary>
/// 根据baseurl生成一条ftp链
/// </summary>
public FtpItem GetFtpLink()
{
var link = new FtpItem {
//Name = "",
AbsoluteUri = new Uri(BaseUrl),
FtpItemType = FtpItemType.Folder,
};
link.FolderItems = GetFtpItems(link);
GetAllChilds(link);
return(link);
}
public void DeleteItem(FtpItem item)
{
switch (item.FtpItemType)
{
case FtpItemType.File:
DeleteAbsoluteFile(item.AbsoluteUri.ToString());
break;
case FtpItemType.Folder:
DeleteAbsoluteDirectory(item.AbsoluteUri.ToString());
break;
default:
throw new ArgumentException("未定义的枚举值");
}
}
