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07.29.2008 at 01:37PM PDT, ID: 23605516
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8.8

HttpWebRequest and keeping session data

Asked by rparkins in .Net Editors & IDEs, Microsoft Visual C#.Net, .NET Framework 3.x versions

Tags: , , , ,

Hello,

My situation. I am using HTML-PDF dll to create dynamic pdfs. The HTML called by the pdf converter is protected with authorisation so only logged in users can view  PDF's (eg invoices, quotes etc).

My issue is when I need to send a PDF to a customer as an email attachment. The administrator is logged in and selects to send the customer an invoice via email.  So to generate this PDF attachment I must call the aspx page and run the PDF generation tool. THis means I have to make an internal call within my client request to generate the pdf. So I am using HttpWebRequest and getting the response and storing the byte[] in the email etc. The issue comes with keeping the session going. I have the context.Request cookie collection so I was hoping to loop through these cookies and add them to my HttpWebRequest but whatever I try it always returns the login page as a reponse to my request. I need to pass the current session data into my HttpWebRequest but it does not seem to work.

Can anyone help? I have posted a code snippet that I am using and getting back the login page.

Many thanks in advance

RichardStart Free Trial 
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.CookieContainer = HttpContext.Current.Request.cook new CookieContainer();
request.Method = "Post";
                
foreach(string cookie in HttpContext.Current.Request.Cookies) {
          HttpCookie tmp = HttpContext.Current.Request.Cookies[cookie];
          Cookie tmpc = new Cookie(cookie, tmp.Value);
          tmpc.Expires = tmp.Expires;
          tmpc.Path = tmp.Path;
          tmpc.Domain = "domain.net";
 
          request.CookieContainer.Add(tmpc);
}
 
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
 
Stream str = (Stream)response.GetResponseStream();
 
BinaryReader rdr = new BinaryReader(str);
 
byte[] bytes = new byte[response.ContentLength];
 
rdr.Read(bytes, 0, (int)response.ContentLength);
 
rdr.Close();
[+][-]08.19.2008 at 06:16AM PDT, ID: 22259438

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[+][-]08.19.2008 at 06:33AM PDT, ID: 22259549

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[+][-]08.20.2008 at 01:19AM PDT, ID: 22267117

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About this solution

Zones: .Net Editors & IDEs, Microsoft Visual C#.Net, .NET Framework 3.x versions
Tags: MIcrosoft, ASP.NET, 3.5, c#, any
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Solution Provided By: ripahoratiu
Participating Experts: 1
Solution Grade: A
 
 
 
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