public StorageReturnValue StorageFtpDelete(string pathFileNameWithExt)
{
StorageReturnValue result = new StorageReturnValue(false, FileStorageProperties.GetInstance.WrongInitialManagement, null);
//Determine if file or full path
string URI = this.Hostname + GetFullPath(pathFileNameWithExt);
System.Net.FtpWebRequest ftp = GetRequest(URI);
//Set request to delete
ftp.Method = System.Net.WebRequestMethods.Ftp.DeleteFile;
try
{
//get response but ignore it
string str = GetStringResponse(ftp);
result = new StorageReturnValue(true, string.Empty, null);
}
catch (Exception ex)
{
result = new StorageReturnValue(true, ex.Message, null);
}
return(result);
}
public StorageReturnValue StorageDownload(string pathFileNameWithExt)
{
StorageReturnValue result = new StorageReturnValue(false, FileStorageProperties.GetInstance.WrongInitialManagement, null);
//2. check source
string target = pathFileNameWithExt;
if (target.Trim() == "")
{
throw (new ApplicationException("File not specified"));
}
else if (target.Contains("/"))
{
//treat as a full path
target = AdjustDir(target);
}
else
{
//treat as filename only, use current directory
target = CurrentDirectory + target;
}
string URI = Hostname + target;
//3. perform copy
System.Net.FtpWebRequest ftp = GetRequest(URI);
//Set request to download a file in binary mode
ftp.Method = System.Net.WebRequestMethods.Ftp.DownloadFile;
ftp.UseBinary = true;
string tempFolder = this.FolderTempGenerated();
string tempFileName = Guid.NewGuid().ToString() + Path.GetExtension(pathFileNameWithExt);
string tempFileDownload = Path.Combine(tempFolder, tempFileName);
FileStream outputStream = new FileStream(tempFileDownload, FileMode.Create);
//open request and get response stream
using (FtpWebResponse response = (FtpWebResponse)ftp.GetResponse())
{
using (Stream responseStream = response.GetResponseStream())
{
//loop to read & write to file
try
{
byte[] buffer = new byte[2048];
int read = 0;
do
{
read = responseStream.Read(buffer, 0, buffer.Length);
outputStream.Write(buffer, 0, read);
} while (!(read == 0));
responseStream.Close();
outputStream.Flush();
outputStream.Close();
}
catch (Exception)
{
//catch error and delete file only partially downloaded
outputStream.Close();
}
responseStream.Close();
}
response.Close();
}
byte[] resultx = null;
if (outputStream != null)
{
outputStream.Close();
}
if (File.Exists(tempFileDownload))
{
resultx = File.ReadAllBytes(tempFileDownload);
File.Delete(tempFileDownload);
}
if (resultx != null)
{
string filename = Path.GetFileName(pathFileNameWithExt);
result = result.SetStorageReturnValue(true, string.Empty,
new List <FileStorageAttachment>()
{
new FileStorageAttachment(filename, filename, resultx)
});
}
else
{
string filename = Path.GetFileName(pathFileNameWithExt);
result = result.SetStorageReturnValue(true, "Error download", null);
}
return(result);
}
public StorageReturnValue StorageUpload(string pathFileNameWithExt, byte[] uploadedFile)
{
//copy the file specified to target file: target file can be full path or just filename (uses current dir)
//copy the file specified to target file: target file can be full path or just filename (uses current dir)
StorageReturnValue result = new StorageReturnValue(false, FileStorageProperties.GetInstance.WrongInitialManagement, null);
//1. check target
try
{
string target;
if (pathFileNameWithExt.Trim() == "")
{
//Blank target: use source filename & current dir
target = this.CurrentDirectory + pathFileNameWithExt;
}
else if (pathFileNameWithExt.Contains("/"))
{
//If contains / treat as a full path
target = AdjustDir(pathFileNameWithExt);
}
else
{
//otherwise treat as filename only, use current directory
target = CurrentDirectory + pathFileNameWithExt;
}
string URI = Hostname + target;
//perform copy
System.Net.FtpWebRequest ftp = GetRequest(URI);
//Set request to upload a file in binary
ftp.Method = System.Net.WebRequestMethods.Ftp.UploadFile;
ftp.UseBinary = true;
//Notify FTP of the expected size
ftp.ContentLength = uploadedFile.Length;
//create byte array to store: ensure at least 1 byte!
const int BufferSize = 2048;
byte[] content = new byte[BufferSize - 1 + 1];
int total_bytes = (int)uploadedFile.Length;
using (Stream rs = ftp.GetRequestStream())
{
while (total_bytes < uploadedFile.Length)
{
rs.Write(uploadedFile, total_bytes, BufferSize);
total_bytes += BufferSize;
}
rs.Close();
}
result = result.SetStorageReturnValue(true, string.Empty, null);
}
catch (Exception ex) { result = result.SetStorageReturnValue(false, ex.Message.ToString(), null); }
return(result);
}
