public FtpResult <Xamarin.Forms.ImageSource> DownloadImage(string fileName)
{
FtpResult <Xamarin.Forms.ImageSource> result = new FtpResult <Xamarin.Forms.ImageSource>();
result.Status = "Processing";
result.Debug = 0;
result.Error = "";
result.Data = null;
try
{
string ftpfullpath = "http://newartsolutions-uqqsvjr7dj8cngkz9pnz.netdna-ssl.com/assets/" + fileName;
WebClient wc = new WebClient();
Stream s = new MemoryStream();
byte[] data = wc.DownloadData(ftpfullpath);
s.Write(data, 0, data.Length);
result.Data = Xamarin.Forms.ImageSource.FromStream(() => { return(s); });
result.Debug = 99;
result.Status = "OK";
}
catch (Exception ex)
{
ex.ToString();
result.Status = "ERROR";
result.Error = ex.Message;
}
return(result);
}
private void ConnectResult(FtpResult result)
{
//if(!result.IsSuccess){
// MsgBox.Alert(result.Msg);
//}
//执行连接事件
if (OnConnection != null)
{
OnConnection(this, result);
}
else
{
MsgBox.Alert(result.Msg);
}
}
public async Task <FtpResult> UploadFiles(string filePath, string saveAsName)
{
var results = new FtpResult {
IsSuccessful = false
};
var imageServer = await _imageServerRepository.GetActiveImageServer();
if (imageServer == null)
{
return(results);
}
// create an FTP client
var ftpClient = new FtpClient(imageServer.ServerFtp);
// if you don't specify login credentials, we use the "anonymous" user account
ftpClient.Credentials = new NetworkCredential(imageServer.UserName, imageServer.Password);
// begin connecting to the server
ftpClient.Connect();
var fileExtension = new FileInfo(filePath).Extension;
try
{
ftpClient.UploadFile(filePath, "/" + imageServer.Patch + saveAsName + fileExtension, FtpExists.Overwrite, true);
}
catch (Exception ex)
{
var er = ex.Message;
}
results.IsSuccessful = true;
results.FileName = saveAsName + fileExtension;
results.FullPath = $"{imageServer.ServerUrl}/{imageServer.Patch}{saveAsName}{fileExtension}";
if (imageServer.Id != null)
{
results.ServerId = imageServer.Id.Value;
}
ftpClient.Disconnect();
return(results);
}
private void btnConnection_Click(object sender, EventArgs e)
{
if (validFTP.IsValid())
{
this.btnConnection.Text = "连接中...";
Application.DoEvents();
FtpResult result = new FtpResult();
try
{
FtpClient client = new FtpClient(
txtAddress.Text.Trim(),
txtUid.Text.Trim(),
txtPwd.Text.Trim()
);
if (!string.IsNullOrEmpty(txtPort.Text))
{
client.port = Convert.ToInt32(txtPort.Text.Trim());
}
result.IsSuccess = client.Connect();
if (!result.IsSuccess)
{
result.Msg = string.IsNullOrEmpty(client.errormessage) ? "连接失败" : client.errormessage;
}
else
{
result.Msg = "连接成功";
}
}
catch (Exception ex) {
result.IsSuccess = false;
result.Msg = "连接失败，错误信息：" + ex.Message;
}
this.btnConnection.Text = "连接";
ConnectResult(result);
}
}
public FtpResult <object> UploadFile(Stream image, int documentId)
{
FtpResult <object> result = new FtpResult <object>();
result.Status = "Processing";
result.Debug = 0;
result.Error = "";
try
{
string ftpUser = "******";
string ftpPassword = "******";
string ftpfullpath = "ftp://ftp.newartzone.uqqsvjr7dj8cngkz9pnz.netdna-cdn.com/documents/" + documentId.ToString() + ".png";
FtpWebRequest ftp = (FtpWebRequest)FtpWebRequest.Create(ftpfullpath);
result.Debug = 1;
ftp.Credentials = new NetworkCredential(ftpUser, ftpPassword);
result.Debug = 2;
ftp.KeepAlive = true;
ftp.UseBinary = true;
ftp.Method = WebRequestMethods.Ftp.UploadFile;
result.Debug = 3;
byte[] buffer = new byte[image.Length];
image.Read(buffer, 0, buffer.Length);
result.Debug = 4;
image.Close();
result.Debug = 5;
Stream ftpstream = ftp.GetRequestStream();
result.Debug = 6;
ftpstream.Write(buffer, 0, buffer.Length);
result.Debug = 7;
ftpstream.Close();
result.Debug = 8;
ftpstream.Flush();
result.Debug = 99;
result.Status = "OK";
}
catch (Exception ex)
{
ex.ToString();
result.Status = "ERROR";
result.Error = ex.Message;
}
return(result);
}
