enabling POST in httpwebrequest file upload - post

Question

I need to upload files (with different extensions ie .txt, .jpg, .pdf....) on a server.
I created a site that accepts http requests an maps a virtual directory to a physical one.
all thi works fine in dowload, now I have to implement the upload.
here is my code
private void UploadFile(string uploadFileName, string localFileName)
{
//long length = 0;
string boundary = "----------------------------" + DateTime.Now.Ticks.ToString("x");
HttpWebRequest httpWebRequest2 = (HttpWebRequest)WebRequest.Create(uploadFileName);
httpWebRequest2.ContentType = "multipart/form-data; boundary=" + boundary;
httpWebRequest2.Method = "POST";
httpWebRequest2.KeepAlive = true;
httpWebRequest2.Credentials = new NetworkCredential("USER", "PASSWORD", "DOMAIN");
Stream memStream = new System.IO.MemoryStream();
byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" +boundary + "\r\n");
string formdataTemplate = "\r\n--" + boundary +"\r\nContent-Disposition: form-data; name=\"{0}\";\r\n\r\n{1}";
memStream.Write(boundarybytes, 0, boundarybytes.Length);
string headerTemplate = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\n Content-Type: application/octet-stream\r\n\r\n";
string header = string.Format(headerTemplate, "uplTheFile", localFileName);
byte[] headerbytes = System.Text.Encoding.UTF8.GetBytes(header);
memStream.Write(headerbytes, 0, headerbytes.Length);
FileStream fileStream = new FileStream(localFileName, FileMode.Open, FileAccess.Read);
byte[] buffer = new byte[1024];
int bytesRead = 0;
while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
{
memStream.Write(buffer, 0, bytesRead);
}
memStream.Write(boundarybytes, 0, boundarybytes.Length);
fileStream.Close();
httpWebRequest2.ContentLength = memStream.Length;
Stream requestStream = httpWebRequest2.GetRequestStream();
//error returned in lenght field: "This stream does not support seek operations."
memStream.Position = 0;
byte[] tempBuffer = new byte[memStream.Length];
memStream.Read(tempBuffer, 0, tempBuffer.Length);
memStream.Close();
requestStream.Write(tempBuffer, 0, tempBuffer.Length);
requestStream.Close();
WebResponse webResponse2 = httpWebRequest2.GetResponse();
//error returned from getResponse: "The remote server returned an error: (405) Method Not Allowed."
//I guess cause my folder is in read only
Stream stream2 = webResponse2.GetResponseStream();
StreamReader reader2 = new StreamReader(stream2);
MessageBox.Show(reader2.ReadToEnd());
webResponse2.Close();
httpWebRequest2 = null;
webResponse2 = null;
}
firstly I got this error: The remote server returned an error: (405) Method Not Allowed.
so I tried to enable POST by adding a mapping onto the web site.
now in the folder on te server I have a web.config file that is:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<directoryBrowse enabled="true" />
<handlers>
<add name="File TXT" path="*.*" verb="*" modules="IsapiModule" scriptProcessor="C:\Windows\System32\inetsrv\asp.dll" resourceType="Unspecified" requireAccess="Script" preCondition="bitness64" />
</handlers>
</system.webServer>
</configuration>
in this way I do not get any error, but the application does not upload any file.
how do I solve this problem?

Answer 1

A much simpler solution would be to use the System.Net.Webclient class to upload the file.
System.Net.WebClient client = new System.Net.WebClient();
client.UploadFile("www.myfileuploadendpoint.com",#"c:\myfiletoupload.txt");
The client also has an OnUploadFileCompleted event that will call a handler when its done.
client.OnUploadFileCompleted += UploadCompleted(sender,args) => { //do whatever you want}
This will save you code and bugs. Good Luck! :)

Answer 2

Both of the above sample not working,
"The remote server returned an error: (405) Method Not Allowed." is the exception caught on trying both the above codes
Expect someone to share their thought on these exceptions, Please.
rgds,
thiru