Re: I need help regarding HttpWebRequest - C# Discussion Boards

14-Sep-05 19:59

Hi all

i m facing a problem.

I make a HttpWebRequest to a site to login . it logged in succcfullly for the first time. when i press the button and try again to login with same or diffrent user and pass it hangs on HttpWebResponse.GetResponseStream() . I need this stream to post POST data.

if i close the Application and build again and run it works fine.

Thanks in Advance

Regards

TaRiQ

TaRiQ

Andy Brummer14-Sep-05 20:37

Andy Brummer

14-Sep-05 20:37

I usually see this if I forget to close a response before making a request.

I can imagine the sinking feeling one would have after ordering my book,
only to find a laughably ridiculous theory with demented logic once the book arrives - Mark McCutcheon

Tariq Rahim14-Sep-05 21:11

14-Sep-05 21:11

thanks for reply

but i m closing the response properly and the point is that every thing works fine when i execute it for the first time but as the program is in execuation and i press the login button again to login again it stuck at HttpWebRequest.GetResponseStream().

Please tell me any hint.

Thanks in Advance

Regards
TaRiQ

TaRiQ RaHiM

Guffa14-Sep-05 21:53

14-Sep-05 21:53

Tariq Rahim wrote:
but i m closing the response properly
Are you absolutely sure about this?

Wise from many questions answered, I won't believe you until I see the code for it. Many times I have looked for errors that does not exist in code that is not even executed, just because people say it is...

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Tariq Rahim15-Sep-05 0:02

15-Sep-05 0:02

uri = new Uri("http://login.passport.net/uilogin.srf?lc=1033&id=2");
req =(HttpWebRequest)WebRequest.Create(uri.AbsoluteUri);
req.Method = "POST";
req.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4433)";
req.Accept= "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-shockwave-flash, */*";
req.Headers.Add("Accept-Language", "en-us");
req.Headers.Add("Cache-Control","no-cache");
req.AllowWriteStreamBuffering=true;
req.KeepAlive = true;
req.Referer = "http://login.passport.com/login.srf?id=2&vv=310&lc=1033";
req.ContentType = "application/x-www-form-urlencoded";

string postdata = "mspppostint="+MSPPT;

byte[] xmlBytes = Encoding.ASCII.GetBytes(postdata);
req.ContentLength = xmlBytes.Length;
// It Stuck here in the GetReuquestStream() as i request for the login 2nd time during the execution of the program
Stream reqStream = req.GetRequestStream();

reqStream.Write(xmlBytes,0,xmlBytes.Length);

// Getting Response of Part I
Response = (HttpWebResponse)req.GetResponse();
stream = new StreamReader(Response.GetResponseStream());
responseHtml = stream.ReadToEnd();
stream.Close();
headers = Response.Headers;
Response.Close();

this is the code and it just stuck at the point where i have writen the comments so pls tell me where i m making wrong

TaRiQ RaHiM

Guffa15-Sep-05 2:09

15-Sep-05 2:09

You have to close the request stream also.

MSDN on GetRequestStream:

CAUTION You must call the Stream.Close method to close the stream and release the connection for reuse. Failure to close the stream will cause your application to run out of connections.

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| Muhammad Waqas Butt |14-Sep-05 23:58

| Muhammad Waqas Butt |

14-Sep-05 23:58

Hi Tariq,

I'm new in c#.net and i also look some this kind of resource as you working on. Please tell me detail about you project, i mean how to connection a remote web server and download file (.zip,.doc,.jpg) using Winform application.

Best Regard,

|Muhamad Waqas Butt|
waqasb4all@yahoo.com
www.sktech.freewebspace.com

Tariq Rahim15-Sep-05 0:14

problem in creation of installation patches for VS.NET deployment projects

15-Sep-05 0:14

Dear Waqas Assalam-m-Alekum

as faar as ur learning is concerned the only thing is that u can use HttpWebRequest HttpWebResponse Classess to get the HTTP Headers
and WebClient to get the File Downloaded or uploaded

for more info and Detialed Code refer to MSDN or any other site about these clasess

Regards
Tariq Rahim

TAriq

Azmal14-Sep-05 19:25

Azmal

14-Sep-05 19:25

I read the article "How to create installation patches for VS.NET deployment projects" by mjmeans.

I tried in the same way, they suggested. It works great. But it is working only First time.

I mean, I installed small project in my machine, and I made small changes in my project and created patch in the same way described in the article. I installed that patch, it works fine. Then again I made some other changes and created the patch. In the patch log, it shows correctly the changes files added in the patch. But When I execute the patch, the changes not applied to installed project. Only first time patch working.

I checked the mail address for mjmeans, but I cannot get it.

Azmal

How do you use a char* in C#?

Steve Messer14-Sep-05 19:17

Steve Messer

14-Sep-05 19:17

In C++ I recieved data from a DLLIMPORT call in a char string as follows:

void funct()
{
   char *icy=BASS_StreamGetTags( Channel, BASS_TAG_ICY);

    for (;*icy;icy+=strlen(icy)+1) 
    {
	char * lowercase;
	lowercase = _strlwr(icy);

	if (!memcmp(icy,"title :",7))
	{
	    temp = icy;
	    pCPlayer->WMA_Title = CamelCase(temp.Right(temp.GetLength() - 8));
	    TRACE("TITLE:"); TRACE( pCPlayer->WMA_Title ); TRACE( "\n");
	}
	if (!memcmp(icy,"author :",8))
	{
	    temp = icy;
	    pCPlayer->WMA_Author = CamelCase(temp.Right(temp.GetLength() - 9));
	    TRACE("AUTHOR:"); TRACE( pCPlayer->WMA_Author ); TRACE( "\n");
	}		
    }
}

In C# I am returning the data to a string. How do I walk thru the data in a C# string like I did in the above example?

Guffa14-Sep-05 21:56

14-Sep-05 21:56

How is the data arranged in the string? What is the separator between the strings in the stream? Is it still a zero character?

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Steve Messer15-Sep-05 2:03

Steve Messer

15-Sep-05 2:03

The data is a pointer to a series of null-terminated strings is returned, the final string ending with a double null.

Guffa15-Sep-05 2:25

15-Sep-05 2:25

If you have that data in a string, just split it on '\x00' and don't use the last two records in the array, as they will be the strings between the last two terminators and between the last terminator and the end of the string.

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