/// <summary>
/// Get the sub directories and files of the Url. It will be used in enumerate
/// all the folders.
/// When run the FTP LIST protocol method to get a detailed listing of the files
/// on an FTP server, the server will response many records of information. Each
/// record represents a file.
/// </summary>
public IEnumerable <FTPFileSystem> GetSubDirectoriesAndFiles(Uri url)
{
FtpWebRequest request = WebRequest.Create(url) as FtpWebRequest;
request.Credentials = this.Credentials;
request.UseBinary = true;
request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
FtpWebResponse response = null;
Stream responseStream = null;
StreamReader reader = null;
try
{
response = request.GetResponse() as FtpWebResponse;
this.OnNewMessageArrived(new NewMessageEventArg
{
NewMessage = response.StatusDescription
});
responseStream = response.GetResponseStream();
// reader = new StreamReader(responseStream);
reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);
List <FTPFileSystem> subDirs = new List <FTPFileSystem>();
string subDir = reader.ReadLine();
// Find out the FTP Directory Listing Style from the recordString.
FTPDirectoryListingStyle style = FTPDirectoryListingStyle.MSDOS;
if (!string.IsNullOrEmpty(subDir))
{
style = FTPFileSystem.GetDirectoryListingStyle(subDir);
}
while (!string.IsNullOrEmpty(subDir))
{
subDirs.Add(FTPFileSystem.ParseRecordString(url, subDir, style));
subDir = reader.ReadLine();
}
return(subDirs);
}
finally
{
if (response != null)
{
response.Close();
}
// Close the StreamReader object and the underlying stream, and release
// any system resources associated with the reader.
if (reader != null)
{
reader.Close();
}
}
}
/// <summary>
/// 获得Url的子目录和文件. 对于所有的文件夹他将使用枚举.
/// 在一个FTP 服务上，当运行FTP LIST 协议方法来获得一个文件的详细列表时，
/// 这个服务将响应一些信息的记录。每一个记录代表一个文件。
/// </summary>
public IEnumerable <FTPFileSystem> GetSubDirectoriesAndFiles(Uri url)
{
FtpWebRequest request = WebRequest.Create(url) as FtpWebRequest;
request.Credentials = this.Credentials;
request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
FtpWebResponse response = null;
Stream responseStream = null;
StreamReader reader = null;
try
{
response = request.GetResponse() as FtpWebResponse;
this.OnNewMessageArrived(new NewMessageEventArg
{
NewMessage = response.StatusDescription
});
responseStream = response.GetResponseStream();
reader = new StreamReader(responseStream);
List <FTPFileSystem> subDirs = new List <FTPFileSystem>();
string subDir = reader.ReadLine();
//在记录的字符串中找到FTP目录列表类型.
FTPDirectoryListingStyle style = FTPDirectoryListingStyle.MSDOS;
if (!string.IsNullOrEmpty(subDir))
{
style = FTPFileSystem.GetDirectoryListingStyle(subDir);
}
while (!string.IsNullOrEmpty(subDir))
{
subDirs.Add(FTPFileSystem.ParseRecordString(url, subDir, style));
subDir = reader.ReadLine();
}
return(subDirs);
}
finally
{
if (response != null)
{
response.Close();
}
// 关闭StreamReader对象和底层流,并且释放与reader有关的任何资源。
if (reader != null)
{
reader.Close();
}
}
}
/// <summary>
/// 从记录字符串得到一个FTPFileSystem
/// </summary>
public static FTPFileSystem ParseRecordString(Uri baseUrl, string recordString, FTPDirectoryListingStyle type)
{
FTPFileSystem fileSystem = null;
if (type == FTPDirectoryListingStyle.UNIX)
{
fileSystem = ParseUNIXRecordString(recordString);
}
else
{
fileSystem = ParseMSDOSRecordString(recordString);
}
//如果是目录加“/”到路径
fileSystem.Url = new Uri(baseUrl, fileSystem.Name + (fileSystem.IsDirectory ? "/" : string.Empty));
return fileSystem;
}
/// <summary>
/// 从recordString中获得一个FTPFileSystem
/// </summary>
public static FTPFileSystem ParseRecordString(Uri baseUrl, string recordString, FTPDirectoryListingStyle type)
{
FTPFileSystem fileSystem = null;
if (type == FTPDirectoryListingStyle.UNIX)
{
fileSystem = ParseUNIXRecordString(recordString);
}
else
{
fileSystem = ParseMSDOSRecordString(recordString);
}
// 如果它是一个目录我们将 "/"添加到Url中，
fileSystem.Url = new Uri(baseUrl, fileSystem.Name + (fileSystem.IsDirectory ? "/" : string.Empty));
return(fileSystem);
}
/// <summary>
/// Get an FTPFileSystem from the recordString.
/// </summary>
public static FTPFileSystem ParseRecordString(Uri baseUrl, string recordString, FTPDirectoryListingStyle type)
{
FTPFileSystem fileSystem = null;
if (type == FTPDirectoryListingStyle.UNIX)
{
fileSystem = ParseUNIXRecordString(recordString);
}
else
{
fileSystem = ParseMSDOSRecordString(recordString);
}
string encodedName = EncodeUrl(fileSystem.Name);
// Add "/" to the url if it is a directory
fileSystem.Url = new Uri(baseUrl, encodedName + (fileSystem.IsDirectory ? "/" : string.Empty));
return(fileSystem);
}
/// <summary>
/// Get an FTPFileSystem from the recordString.
/// </summary>
public static FTPFileSystem ParseRecordString(Uri baseUrl, string recordString, FTPDirectoryListingStyle type)
{
FTPFileSystem fileSystem = null;
if (type == FTPDirectoryListingStyle.UNIX)
{
fileSystem = ParseUNIXRecordString(recordString);
}
else
{
fileSystem = ParseMSDOSRecordString(recordString);
}
string encodedName = EncodeUrl(fileSystem.Name);
// Add "/" to the url if it is a directory
fileSystem.Url = new Uri(baseUrl, encodedName + (fileSystem.IsDirectory ? "/" : string.Empty));
return fileSystem;
}