How to view a page after logon...

[Lorenzo]

Hi i'm writing some code that retrieve the html source code of an asp page.

The problem is that if i go directly to this page the browser redirect me to
a login page where are two textbox in a html form.

<form action="/admin/login.asp?aktio n=login" method="POST" name="login">
<table border="2" align="center">
<tr>
<td>
<b>Username:</b>
</td>
<td>
<input class="basic" type="text" size="15" name="username" >
</td>
</tr>
<tr>
<td>
<b>Password:</b>
</td>
<td>
<input class="basic" type="password" size="15" name="password" >
</td>
<td>
<input class="basic" type="submit" name="enterbut" value="Enter">
<input type="hidden" name="dest" value="">
<input type="hidden" name="qs" value="">
</td>

if i write in the address bar the link
https://xxx.xxx.com/admin/login.asp?...in/Default.asp
i go in the default.asp page.

now...i write this code in c# but it doesn't work...in the txtHtml textbox
is shown always the html source of the login.asp page...
private void Button1_Click(o bject sender, System.EventArg s e)

{

string postdata;

WebClient page = new WebClient();

CredentialCache cache = new CredentialCache ();

CookieContainer ccContainer = new CookieContainer ();

ASCIIEncoding encoding = new ASCIIEncoding() ;

HttpWebRequest request
=(HttpWebReques t)WebRequest.Cr eate("https://xxxx.xxxx.com/admin/login.asp");

request.AllowAu toRedirect = false;

request.Method = "POST";

request.Content Type = @"applicatio n/x-www-form-urlencoded";

request.UserAge nt = "Mozilla/4.0 (compatible;" +

" MSIE 6.0; Windows NT 5.0; .NET CLR 1.0.3705)";

request.CookieC ontainer = new CookieContainer ();

postdata = "?aktion=login& username="+
HttpUtility.Url Decode("massimi liano.del.vita" ) + "&password= " +
HttpUtility.Url Decode("miami") +

"&dest=" + HttpUtility.Url Decode("/admin/Default.asp");

request.Credent ials = new NetworkCredenti al("xxxx","xxxx ");

request.CookieC ontainer.Add(cc Container.GetCo okies(new
Uri("https://xxxx.xxxxx.com/admin/login.asp"));

byte[] buf = encoding.GetByt es(postdata);

request.Content Length = buf.Length;

Stream str = request.GetRequ estStream();

str.Write(buf,0 ,buf.Length);

str.Close();

HttpWebResponse response = (HttpWebRespons e)request.GetRe sponse();

if(request.Have Response)

{

Stream str2 = response.GetRes ponseStream();

StreamReader strReader = new StreamReader(st r2);

txtHtml.Text = strReader.ReadT oEnd().Trim();

string result = strReader.ReadT oEnd();

}

}

could u help me? tnx

[Lorenzo]

Lorenzo wrote:
[CUT]

I solved with this code :
private void Button1_Click(o bject sender, System.EventArg s e)

{

Encoding enc = Encoding.GetEnc oding(1252);

ASCIIEncoding asciiEnc = new ASCIIEncoding() ;

Encoding ascii = Encoding.ASCII;
string UN = txtUsername.Tex t;

string PW = txtPass.Text;

string sql = txtSql.Text.Rep lace(" ","%20").Replac e("\n","
").Replace("\r" ,"");

string url = "https://xxx.xxx.com/admin/login.asp?aktio n=login&usernam e="+

UN+"&password=" +PW

+"&dest=/admin/tracking/queryresults.as p&qs=selectquer y"+
HttpUtility.Url Encode(sql, System.Text.Enc oding.GetEncodi ng("ISO-8859-1"));

txtURI.Text = url;

HttpWebRequest request =(HttpWebReques t)WebRequest.Cr eate(url);

request.Content Type = "applicatio n/x-www-form-urlencoded";

request.UserAge nt = "Mozilla/4.0 (compatible;" +

" MSIE 6.0; Windows NT 5.0; .NET CLR 1.0.3705)";

request.CookieC ontainer = new CookieContainer ();

try

{

HttpWebResponse response = (HttpWebRespons e)request.GetRe sponse();

if(request.Have Response)

{

if(response.Con tentEncoding.Le ngth > 0)

{

enc = Encoding.GetEnc oding(response. ContentEncoding );

}

StreamReader strReader = new StreamReader(re sponse.GetRespo nseStream(),enc );

txtHtml.Text = strReader.ReadT oEnd().Trim();

string result = strReader.ReadT oEnd();

strReader.Close ();

response.Close( );

}

}

catch(WebExcept ion wexc)

{

txtUrl.Text = wexc.Message;

}

}

but... often if i write an sql statement in txtSql textbox it appear correct
in txtURI textbox (if i cut & paste it in the explorer address bar worked
well) but the HttpWebResponse response =
(HttpWebRespons e)request.GetRe sponse(); give me an error of type 400 (remote
server error)...

Why?