Hello Peter and everybody,

I did some progress on this problem, but still have some issues. This is
what I did so far:


// obtain a collection of certificates
X509Store store = new X509Store("MY", StoreLocation.CurrentUser);
store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
collection = (X509Certificate2Collection)store.Certificates;
fcollection =
(X509Certificate2Collection)collection.Find(X509FindType.FindByTimeValid,
DateTime.Now, false);

// URL for my file to download
string myFile2Get = "https://www.MySecureWebsite.com/MyFile.txt";;

// create the specialized Web Request object
HttpWebRequest objHttpWebReq = WebRequest.Create(myFile2Get) as
HttpWebRequest;

// add the collection of the certificates
objHttpWebReq.ClientCertificates = fcollection;

// default method is GET

// get the response to my request
HttpWebResponse response = objHttpWebReq.GetResponse() as HttpWebResponse;

// Get the stream associated with the response.
Stream receiveStream = response.GetResponseStream();
Encoding encode = System.Text.Encoding.GetEncoding("utf-8");

// Pipes the stream to a higher level stream reader with the required
encoding format.
StreamReader readStream = new StreamReader(receiveStream, encode);

Console.WriteLine("\r\nResponse stream received.");

Char[] read = new Char[256];

// Reads 256 characters at a time.
int count = readStream.Read(read, 0, 256);

Console.WriteLine("HTML...\r\n");

while (count > 0)
{
   // Dumps the 256 characters on a string and displays the string to the
console.
   String str = new String(read, 0, count);
   Console.Write(str);
   count = readStream.Read(read, 0, 256);
}

Console.WriteLine("");

// Releases the resources of the response.
response.Close();

// Releases the resources of the Stream.
readStream.Close();


There is no error thrown, but instead of getting the content of the text
file I am trying to read, all I get is message saying "Virtual user
'NameOfMyCertificate' is logged in". What am I doing wrong? How do I get to
read the file and not just some status message? Is this something that is
done in two steps: connect to the secure site and then request the file? If
so, what would be the sequence?

Any help will be highly appreciated.

All the best,
Eddie



-----Original Message-----
From: Discussion of advanced .NET topics.
[mailto:[EMAIL PROTECTED] Behalf Of Peter Ritchie
Sent: Monday, July 09, 2007 1:24 PM
To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM
Subject: Re: [ADVANCED-DOTNET] Accessing files over HTTPS -> for Peter
Ritchie


Hi Eddie, I haven't done it; but (if you want to use WebClient) I believe
you'll have to specialize WebClient and override the GetWebRequest
method.  If you've got an http[s] URL, the default should create an
HttpWebRequest object (you'll have to cast from the WebRequest return from
the base, i.e. call the base first), and HttpWebRequest has a
ClientCertificates collection property.  You can add a
X509Certificate/X509Certificate2 object to this collection.
X509Certificate has lots of ways to load from file; or you can enumerate
those stored in a store via the X509Store class[1].

Let us know how that works out.

[1] http://msdn2.microsoft.com/en-
us/library/system.security.cryptography.x509certificates.x509certificate2co
llection(VS.80).aspx

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