Re: HTTPS with WebResponse class

• Previous message: Guogang: "Re: server certificate issue"
• In reply to: Aung: "Re: HTTPS with WebResponse class"
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Date: Sat, 30 Aug 2003 01:02:49 GMT

Egads!! BAD cross-poster - BAD!!

Anyhow, yes - this is exactly what the problem is. You can't programatically
specify a trust list (at least I haven't run across a way) - so even if you
log in with that account, and add the certificate authority -
programatically - it will still not trust that CA.

The ONLY way I've seen this or been able to get this to work (because I
needed to do the same thing) - is you have to get real certificates, like
from Verisign or Thawte..

"Aung" <aung@aungkyawmoe_NOSPAM_.net> wrote in message
news:u7xxlOobDHA.3896@TK2MSFTNGP11.phx.gbl...
> Yes. i used IE before calling from my application. IE popup with a warning
> message telling me that "certificate on the server is not the same name
bla
> bla. " and when i hit OK, i can view the SSL page with form.
>
> my .NET application cannot.
>
>
> "Justin Rogers" <Justin@games4dotnet.com> wrote in message
> news:#8bt4YnbDHA.2572@TK2MSFTNGP12.phx.gbl...
> > Best way to test your client is see if you can do the same from IE.
Most
> of
> > the System.Net classes take configuration from IE behind the scenes. If
> it
> > doesn't work in IE and you do get it working, make sure to close all
> > instances of IE so the data persists before re-running the .NET
> application.
> > Some changes are considered dynamic and won't be written to the registry
> > until close.
> >
> > Hopefully you find that IE won't connect either. I find it hard to
> believe
> > that .NET would have a more stringent implementation of SSL than IE.
But
> it
> > is possible.
> >
> > --
> > Justin Rogers
> > DigiTec Web Consultants, LLC.
> >
> > "Aung" <aung@aungkyawmoe_NOSPAM_.net> wrote in message
> > news:ezn5SNnbDHA.1580@tk2msftngp13.phx.gbl...
> > > Hello,
> > >
> > > I am having a problem with WebRequest class. I used the following code
> to
> > > post some data to a page and retrive back the response. It works fine
> with
> > > http:// connection. When i use that with https:// connection, it
thrown
> an
> > > exception "The underlying connection was closed: Could not establish
> trust
> > > relationship with remote server.". I am using self sign certificate on
> the
> > > web server and the root and CA certificates are installed on the
client
> > > machine using the following code.
> > >
> > > your suggestions will be great appreciated.
> > >
> > > Aung
> > >
> > > public string postForm(string url, string postData)
> > >
> > > {
> > >
> > > string retStr="", tempStr;
> > >
> > > HttpWebResponse result = null;
> > >
> > > try
> > >
> > > {
> > >
> > > HttpWebRequest req = (HttpWebRequest) WebRequest.Create(url);
> > >
> > > req.Method = "POST";
> > >
> > > req.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;
.NET
> > CLR
> > > 1.0.3705)";
> > >
> > > req.ContentType = "application/x-www-form-urlencoded";
> > >
> > > StringBuilder UrlEncoded = new StringBuilder();
> > >
> > > Char[] reserved = {'?', '=', '&'};
> > >
> > > byte[] SomeBytes = null;
> > >
> > > if (postData != null)
> > >
> > > {
> > >
> > > int i=0, j;
> > >
> > > while(i<postData.Length)
> > >
> > > {
> > >
> > > j=postData.IndexOfAny(reserved, i);
> > >
> > > if (j==-1)
> > >
> > > {
> > >
> > > UrlEncoded.Append(HttpUtility.UrlEncode(postData.Substring(i,
> > > postData.Length-i)));
> > >
> > > break;
> > >
> > > }
> > >
> > > UrlEncoded.Append(HttpUtility.UrlEncode(postData.Substring(i, j-i)));
> > >
> > > UrlEncoded.Append(postData.Substring(j,1));
> > >
> > > i = j+1;
> > >
> > > }
> > >
> > > SomeBytes = Encoding.UTF8.GetBytes(UrlEncoded.ToString());
> > >
> > > req.ContentLength = SomeBytes.Length;
> > >
> > > Stream newStream = req.GetRequestStream();
> > >
> > > newStream.Write(SomeBytes, 0, SomeBytes.Length);
> > >
> > > newStream.Close();
> > >
> > > }
> > >
> > > else
> > >
> > > {
> > >
> > > req.ContentLength = 0;
> > >
> > > }
> > >
> > > result = (HttpWebResponse) req.GetResponse();
> > >
> > > Stream ReceiveStream = result.GetResponseStream();
> > >
> > > Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
> > >
> > > StreamReader sr = new StreamReader( ReceiveStream, encode );
> > >
> > > Char[] read = new Char[256];
> > >
> > > int count = sr.Read( read, 0, 256 );
> > >
> > > while (count > 0)
> > >
> > > {
> > >
> > > tempStr = new String(read, 0, count);
> > >
> > > retStr += tempStr;
> > >
> > > count = sr.Read(read, 0, 256);
> > >
> > > }
> > >
> > > retStr.Trim();
> > >
> > > }
> > >
> > > catch (Exception e)
> > >
> > > {
> > >
> > > retStr = "Error!!";
> > >
> > > }
> > >
> > > finally
> > >
> > > {
> > >
> > > if ( result != null )
> > >
> > > {
> > >
> > > result.Close();
> > >
> > > }
> > >
> > > }
> > >
> > > return retStr;
> > >
> > > }
> > >
> > >
> > >
> >
> >
>
>

• Previous message: Guogang: "Re: server certificate issue"
• In reply to: Aung: "Re: HTTPS with WebResponse class"
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