I have this source code:
我有这个源代码：
public static void FTP_SERVER()
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://myurl.com/mainfolder/");
request.Method = WebRequestMethods.Ftp.ListDirectory;
request.Credentials = new NetworkCredential("myusername", "mypassword");
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
Stream responseStream = response.GetResponseStream();
StreamReader reader = new StreamReader(responseStream);
ArrayList directories = new ArrayList();
while (!reader.EndOfStream)
{
String directory = reader.ReadLine();
int i = 0;
for (i = 0; i < directories.Count && Convert.ToInt32(directory) > Convert.ToInt32(directories[i] + ""); i++);
directories.Insert(i, directory);
}
String[] agents = Crawler.CrawlerDbUtils.getAllAgentIDs();
reader.Close();
response.Close();
int j = 0;
for (int i = 0; i < directories.Count; i++)
{
try
{
while ((j < agents.Length) && (Convert.ToInt32(agents[j]) < Convert.ToInt32(directories[i] + "")))
{
try
{
request = (FtpWebRequest)WebRequest.Create("ftp://myurl.com/mainfolder/" + agents[j]);
request.Method = WebRequestMethods.Ftp.MakeDirectory;
request.Credentials = new NetworkCredential("myusername", "mypassword");
response = (FtpWebResponse)request.GetResponse();
responseStream = response.GetResponseStream();
response.Close();
}
catch (Exception exception)
{ }
j++;
}
if (Convert.ToInt32(agents[j]) == Convert.ToInt32(directories[i] + ""))
{
request = (FtpWebRequest)WebRequest.Create("ftp://myurl.com/mainfolder/" + directories[i] + "/");
request.Method = WebRequestMethods.Ftp.ListDirectory;
request.Credentials = new NetworkCredential("myusername", "mypassword");
response = (FtpWebResponse)request.GetResponse();
responseStream = response.GetResponseStream();
reader = new StreamReader(responseStream);
ArrayList files = new ArrayList();
while (!reader.EndOfStream)
{
String file = reader.ReadLine();
int q = 0;
for (q = 0; q < files.Count && file.CompareTo(files[q] + "") > 0; q++) ;
files.Insert(q, file);
}
reader.Close();
response.Close();
String[] dbFiles = Crawler.CrawlerDbUtils.getAllPictures(directories[i] + "");
int r = 0;
for (int q = 0; q < files.Count; q++)
{
while ((r < dbFiles.Length) && ((dbFiles[r] + "").CompareTo(files[q] + "") < 0))
{
r++;
}
try
{
if ((r >= dbFiles.Length) || ((dbFiles[r] + "").Equals(files[q]) == false))
{
request = (FtpWebRequest)WebRequest.Create("ftp://myurl.com/mainfolder/" + directories[i] + "/" + files[q]);
request.Method = WebRequestMethods.Ftp.DeleteFile;
request.Credentials = new NetworkCredential("myusername", "mypassword");
response = (FtpWebResponse)request.GetResponse();
responseStream = response.GetResponseStream();
response.Close();
}
}
catch (Exception exception)
{ }
}
j++;
}
else
{
request = (FtpWebRequest)WebRequest.Create("ftp://myurl.com/mainfolder/" + directories[i] + "/");
request.Method = WebRequestMethods.Ftp.ListDirectory;
request.Credentials = new NetworkCredential("myusername", "mypassword");
response = (FtpWebResponse)request.GetResponse();
responseStream = response.GetResponseStream();
reader = new StreamReader(responseStream);
ArrayList files = new ArrayList();
while (!reader.EndOfStream)
{
files.Add(reader.ReadLine());
}
reader.Close();
response.Close();
for (int k = 0; k < files.Count; k++)
{
request = (FtpWebRequest)WebRequest.Create("ftp://myurl.com/mainfolder/" + directories[i] + "/" + files[k]);
request.Method = WebRequestMethods.Ftp.DeleteFile;
request.Credentials = new NetworkCredential("myusername", "mypassword");
response = (FtpWebResponse)request.GetResponse();
responseStream = response.GetResponseStream();
response.Close();
}
request = (FtpWebRequest)WebRequest.Create("ftp://myurl.com/mainfolder/" + directories[i] + "/");
request.Method = WebRequestMethods.Ftp.RemoveDirectory;
request.Credentials = new NetworkCredential("myusername", "mypassword");
response = (FtpWebResponse)request.GetResponse();
responseStream = response.GetResponseStream();
response.Close();
}
}
catch (Exception exception)
{
}
}
while (j < agents.Length)
{
try
{
request = (FtpWebRequest)WebRequest.Create("ftp://myurl.com/mainfolder/" + agents[j] + "/");
request.Method = WebRequestMethods.Ftp.MakeDirectory;
request.Credentials = new NetworkCredential("myusername", "mypassword");
response = (FtpWebResponse)request.GetResponse();
responseStream = response.GetResponseStream();
response.Close();
}
catch (Exception exception)
{ }
j++;
}
MessageBox.Show("DONE");
}
public st
