R
rony.vainblat
Hi,
I have a program that connects to a site With WebRequest and
WebResponse .
The response of this site is a file (csv file).
The problem is that the file do not comes as a stream , hi is a part of
the header
(Content-Disposition:attachment; filename=changehistory.csv)
i tried to download this file as a stream , but it do not work .
i triesd with WebClient , but i coudn't attache a cookieContainer to
him . (Connectiong to LogIn)
I did a search in the web an again i found nothing .
Please Help me , Rony
My Code is :
#region SaveStreamToFile
/// <summary>
/// Saves the stream on the HD to the path provided.
/// </summary>
/// <param name="filePath">Where to save the file. (includes the
file name)</param>
/// <param name="stream">The stream contains the data to be
saved.</param>
/// <returns>True - Saved successfully. Otherwise False.</returns>
public void SaveStreamToFile(string filePath, Stream stream)
{
// If not all data was provided return false;
//if (string.IsNullOrEmpty(filePath) || stream == null)
// return false;
// System.IO.Stream gzStream = stream; //= new
System.IO.Stream()//(stream,
System.IO.Compression.CompressionMode.Decompress);
FileStream fs = null;
try
{
byte[] inBuffer = new byte[10000];
int bytesRead = 0;
fs = File.Open(filePath, FileMode.Create, FileAccess.Write,
FileShare.Read);
while ((bytesRead = stream.Read(inBuffer, 0,
inBuffer.Length)) > 0)
{
fs.Write(inBuffer, 0, bytesRead);
}
fs.Flush();
// return true;
}
catch (Exception ex)
{
throw ex;
// ExceptionPolicy.HandleException(ex, "Global Policy");
//return false;
}
finally
{
fs.Close();
}
}
#endregion
protected void Go1()
{
string get = "http://www.login.com?Usr=rony&Psw=vava";
CookieContainer cookies = new CookieContainer();
HttpWebRequest webRequest = WebRequest.Create(get) as
HttpWebRequest;
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.CookieContainer = cookies;
WebResponse myResponse = webRequest.GetResponse();
Stream ReceiveStream = myResponse.GetResponseStream();
Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
StreamReader readStream = new StreamReader(ReceiveStream,
encode);
string str = readStream.ReadToEnd();
int pos = str.LastIndexOf("href=");
int p = str.IndexOf("target", pos);
string s = str.Substring(pos + 6, p - pos - 4);
int v = s.IndexOf('"');
string sv = s.Substring(0, v);
sv = sv.Replace("&", "&");
readStream.Close();
// now we can send out cookie along with a request for the
protected page
webRequest = WebRequest.Create(sv) as HttpWebRequest;
webRequest.CookieContainer = cookies;
StreamReader responseReader = new
StreamReader(webRequest.GetResponse().GetResponseStream());
string responseData = responseReader.ReadToEnd();
responseReader.Close();
// download with stream (not working)
string d = "https://www.login.com?download=32";
HttpWebRequest webRequest1 = WebRequest.Create(d) as
HttpWebRequest;
webRequest1.ContentType = "application/x-www-form-urlencoded";
webRequest1.CookieContainer = cookies;
WebResponse myResponse1 = webRequest1.GetResponse();
Stream ReceiveStream1 = myResponse1.GetResponseStream();
string aa = myResponse1.Headers["Content-Disposition"];
SaveStreamToFile(@"C:\file.csv", ReceiveStream1);
}
I have a program that connects to a site With WebRequest and
WebResponse .
The response of this site is a file (csv file).
The problem is that the file do not comes as a stream , hi is a part of
the header
(Content-Disposition:attachment; filename=changehistory.csv)
i tried to download this file as a stream , but it do not work .
i triesd with WebClient , but i coudn't attache a cookieContainer to
him . (Connectiong to LogIn)
I did a search in the web an again i found nothing .
Please Help me , Rony
My Code is :
#region SaveStreamToFile
/// <summary>
/// Saves the stream on the HD to the path provided.
/// </summary>
/// <param name="filePath">Where to save the file. (includes the
file name)</param>
/// <param name="stream">The stream contains the data to be
saved.</param>
/// <returns>True - Saved successfully. Otherwise False.</returns>
public void SaveStreamToFile(string filePath, Stream stream)
{
// If not all data was provided return false;
//if (string.IsNullOrEmpty(filePath) || stream == null)
// return false;
// System.IO.Stream gzStream = stream; //= new
System.IO.Stream()//(stream,
System.IO.Compression.CompressionMode.Decompress);
FileStream fs = null;
try
{
byte[] inBuffer = new byte[10000];
int bytesRead = 0;
fs = File.Open(filePath, FileMode.Create, FileAccess.Write,
FileShare.Read);
while ((bytesRead = stream.Read(inBuffer, 0,
inBuffer.Length)) > 0)
{
fs.Write(inBuffer, 0, bytesRead);
}
fs.Flush();
// return true;
}
catch (Exception ex)
{
throw ex;
// ExceptionPolicy.HandleException(ex, "Global Policy");
//return false;
}
finally
{
fs.Close();
}
}
#endregion
protected void Go1()
{
string get = "http://www.login.com?Usr=rony&Psw=vava";
CookieContainer cookies = new CookieContainer();
HttpWebRequest webRequest = WebRequest.Create(get) as
HttpWebRequest;
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.CookieContainer = cookies;
WebResponse myResponse = webRequest.GetResponse();
Stream ReceiveStream = myResponse.GetResponseStream();
Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
StreamReader readStream = new StreamReader(ReceiveStream,
encode);
string str = readStream.ReadToEnd();
int pos = str.LastIndexOf("href=");
int p = str.IndexOf("target", pos);
string s = str.Substring(pos + 6, p - pos - 4);
int v = s.IndexOf('"');
string sv = s.Substring(0, v);
sv = sv.Replace("&", "&");
readStream.Close();
// now we can send out cookie along with a request for the
protected page
webRequest = WebRequest.Create(sv) as HttpWebRequest;
webRequest.CookieContainer = cookies;
StreamReader responseReader = new
StreamReader(webRequest.GetResponse().GetResponseStream());
string responseData = responseReader.ReadToEnd();
responseReader.Close();
// download with stream (not working)
string d = "https://www.login.com?download=32";
HttpWebRequest webRequest1 = WebRequest.Create(d) as
HttpWebRequest;
webRequest1.ContentType = "application/x-www-form-urlencoded";
webRequest1.CookieContainer = cookies;
WebResponse myResponse1 = webRequest1.GetResponse();
Stream ReceiveStream1 = myResponse1.GetResponseStream();
string aa = myResponse1.Headers["Content-Disposition"];
SaveStreamToFile(@"C:\file.csv", ReceiveStream1);
}