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Remote server (407) Proxy Authentication Required

I want to connect to an http web page , but everytime it enters in catch and returns error Remote server (407) Proxy Authentication Required. why? I used the same code in another website project and it worked.
WebProxy wp = new WebProxy("**");
wp.Credentials = new NetworkCredential("**", "**");
StringBuilder sbXmlText = new StringBuilder();
try
{
WebClient MyWebClient = new WebClient();
MyWebClient.Proxy = wp;
Stream TheStream = MyWebClient.OpenRead("http://www.bnr.ro/nbrfxrates10days.xml");
StreamReader TheStreamReader = new StreamReader(TheStream);
while (!TheStreamReader.EndOfStream)
sbXmlText.Append((char)TheStreamReader.Read());
}
catch (Exception ex)
{
mail_send_bnr(ex.ToString(), "Error on connecting to bnr", "test");
}

Check whether a folder exists on FTP server before uploading to that folder

I've checked other posts on this topic, but I can't seem to figure out the fundamentals of checking whether or not a directory exists on an FTP server before trying to upload a file there.
With the following code I get an exception when trying to upload to a folder that already exists. I feel that it shouldn't be too hard to just use some kind of folder.Exists before creating the directory, but I can't get it to work. Any ideas?
Upload method as of now:
String id = Request.QueryString["ID"];
String path = Server.MapPath("~/temp/");
String filename = Path.GetFileName(fuPicture.PostedFile.FileName);
if (fuPicture.HasFile)
{
try
{
fuPicture.PostedFile.SaveAs(path + fuPicture.FileName);
}
catch (Exception ex)
{
lblFeedback.Text = "Fel vid uppladdning";
}
path += fuPicture.FileName;
String ftpServer = "ftp://xxx";
String userName = "xx";
String password = "xx";
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(new Uri("ftp://xx/" + id));
// I want to implement an if-condition here
// whether or not the folder exists
request.Method = WebRequestMethods.Ftp.MakeDirectory;
request.Credentials = new NetworkCredential(userName, password);
using (var resp = (FtpWebResponse)request.GetResponse())
{
WebClient client = new WebClient();
client.Credentials = new NetworkCredential(userName, password);
client.UploadFile(ftpServer + "/" + id + "/" + new FileInfo(path).Name, "STOR", path);
resp.Close();
}

Try listing directory ListDirectory, if not found then create MakeDirectory
request.Method = WebRequestMethods.Ftp.ListDirectory;
request.Credentials = new NetworkCredential(userName, password);
try
{
using (request.GetResponse())
{
//continue
}
}
catch (WebException)
{
request.Method = WebRequestMethods.Ftp.MakeDirectory;
using (request.GetResponse())
{
//continue
}
}

get html source through proxy

Hi how do I get the source of an html page through a proxy. When I use the code below I get an error saying "Proxy Authentication Required." and I have to go through a proxy.
Dim client As New WebClient()
Dim htmlCode As String = client.DownloadString("http://www.stackoverflow.com")

Then use a proxy that does not need authentication
see here for more info
http://msdn.microsoft.com/en-us/library/system.net.webclient.proxy.aspx
string source = GetPageSource("http://www.stackoverflow.com");
private string GetPageSource(string url)
{
string htmlSource = string.Empty;
try
{
System.Net.WebProxy myProxy = new System.Net.WebProxy("Proxy IP", 8080);
using (System.Net.WebClient client = new System.Net.WebClient())
{
client.Proxy = myProxy;
client.Proxy.Credentials = new System.Net.NetworkCredential("username", "password");
htmlSource = client.DownloadString(url);
}
}
catch (WebException ex)
{
// log any exceptions
}
return htmlSource;
}

how to add proxy authentication details to webclient object

I have some code that's throwing a 407 unauthorized exception.
I am trying to download a file and below is my example code. I've tried with netcredentials and webproxy but in vain.
WebClient webClient = new WebClient();
NetworkCredential netCred=new NetworkCredential();
netCred.UserName="<<userid>>";
netCred.Password="<<password>>";
netCred.Domain="<<windowsdomainname>>";
webClient.Credentials = netCred;
WebProxy wp = new WebProxy();
wp.Credentials = netCred;
wp.Address = new Uri(#"http://proxy-xx.xxxx.co.uk:8080/proxy.pac");
webClient.Proxy = wp;
webClient.DownloadFile("http://www.win-rar.com/postdownload.html?&L=0", #"c:\winrar.exe");

I was getting 407 before finding your question. Modified your source to the following, which works for me:
try
{
var netCred = new NetworkCredential { UserName = "ununun", Password = #"pwpwpw", Domain = #"domain" };
var webProxy = new WebProxy { Credentials = netCred };
var webClient = new WebClient { Proxy = webProxy };
webClient.DownloadFile(url, saveFileName);
}
catch (Exception ex)
{
Console.WriteLine("Exception:\n{0}\n{1}", ex.Message, ex.StackTrace);
return;
}

This is what I do yesterday.
WebClient client = new WebClient();
ICredentials cred;
cred = new NetworkCredential(user, password);
client.Proxy = new WebProxy("xxxx-proxy", true, null, cred);
Hope it help !

Get location of client machine using ip address

I am trying to get the location of client machine using ip address. Client can access the internet only if
he/she provide the proxy authenication.
Let us say client need to access the 'www.google.com' on the browser then immediately Authenication Required
prompt window open and then client enter his/her username and password. But it is possible the few users does
not required the provide the authenication in order to access internet.
This segment of code does not helped me...
string url = "http://freegeoip.net/xml/";
WebClient wc = new WebClient();
WebProxy proxyObj = new WebProxy("http://freegeoip.net/xml/");
proxyObj.Credentials = CredentialCache.DefaultCredentials;
Uri uri = new Uri(url);
MemoryStream ms = new MemoryStream(wc.DownloadData(uri));
XmlTextReader rdr = new XmlTextReader(url);
XmlDocument doc = new XmlDocument();
ms.Position = 0;
doc.Load(ms);
ms.Dispose();
In the above code if i add network credential instance with username, password and domain then it's work perfectly
Instead of providing the default net credential in code itself, I need to get the username and password from the users(client
machine).
My question is how to prompt the Authentication Required Window and get the username and password to load the download from url
I would be glad if someone throw light on this issue...
Edit: Somehow basic authentication window prompt and now i can get the username and password which can use for credential
try
{
var reg = HttpContext.Current.Request;
if (!String.IsNullOrEmpty(reg.Headers["Authorization"]))
{
var cred = System.Text.ASCIIEncoding.ASCII.GetString(Convert.FromBase64String(Request.Headers["Authorization"].Substring(6))).Split(':');
var user = new { Name = cred[0], Pass = cred[1] };
string url = "http://freegeoip.net/xml/";
WebClient wc = new WebClient();
WebProxy wProxy = new WebProxy();
ICredentials crd;
crd = new NetworkCredential("'" + cred[0] + "'", "'" + cred[1] + "'");
wProxy = new WebProxy("myproxy", true, null, crd);
wc.Proxy = wProxy;
Uri uri = new Uri(url);
string content = wc.DownloadString(uri);
}
else
{
try
{
//var reg = HttpContext.Current.Request;
if (String.IsNullOrEmpty(reg.Headers["Authorization"]))
{
var res = HttpContext.Current.Response;
res.StatusCode = 401;
res.AddHeader("WWW-Authenticate", "Basic realm = \"freegeoip\"");
//res.End();
}
}
catch (Exception ex)
{
}
}
}
catch(Exception ex)
{
}
But Still It throwing the "Unable to connect to the remote server"