?
Solved

HttpWebRequest Form Authentication Not Getting Past Login Page

Posted on 2010-09-03
3
Medium Priority
?
683 Views
Last Modified: 2012-08-13
Hey Guys,

I am trying to use HTTPWebRequest to login to a site and then retrieve the page after login. However, it seems as if I can't get past the login. I also investigated with Fiddler and tried mimicking Fiddler almost completely and still no luck.

Any idea what I am doing wrong?

Thanks,
Mohammed
Dim webRequest As HttpWebRequest
Dim responseReader As StreamReader
Dim responseData As String
Dim postData As String = "login=testexpert@yahoo.com&password=testexpert"
Dim cookies As CookieContainer = New CookieContainer()
Dim requestWriter As StreamWriter

Try
'post form data to page
    strUrl = "https://www.ideeli.com/login"
    webRequest = HttpWebRequest.Create(strUrl)
    webRequest.Method = WebRequestMethods.Http.Post
    webRequest.ContentType = "application/x-www-form-urlencoded"
    webRequest.CookieContainer = cookies
    webRequest.ContentLength = postData.Length

    requestWriter = New StreamWriter(webRequest.GetRequestStream)
    requestWriter.Write(postData)
    requestWriter.Close()

'recieve cookie
    webRequest.GetResponse().Close()

'now we send the cookie
    webRequest = HttpWebRequest.Create("http://www.ideeli.com")
    webRequest.CookieContainer = cookies
    responseReader = New StreamReader(webRequest.GetResponse.GetResponseStream())
    responseData = responseReader.ReadToEnd()
    responseReader.Close()
    strRequestedHTML = responseData

    Return
Catch ex As Exception
    ErrorLabel.Text += "<br />There was an error going to this site: " + strUrl + "<br> Error: " + ex.Message
    Return
End Try

Open in new window

0
Comment
Question by:mohali786
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 17

Expert Comment

by:Zhaolai
ID: 33600771
Tried your code. Here is the return page:
Is it what you expected?
Do you get any errors? If so, what errors?


Screenshot.PNG
0
 

Author Comment

by:mohali786
ID: 33600988
I get the same page. However, this is not the page that I want. If I tried going to Ideeli.com without being logged in I would get this page. If I tried the same while being logged in I would get the sales page. I want to see the sales page.
0
 

Accepted Solution

by:
mohali786 earned 0 total points
ID: 33601929
Here is the code to resolve that. Basically what I do different is to GET the non-authenticated cookie first and then POST that with my login information
Dim webRequest As HttpWebRequest
Dim responseReader As StreamReader
Dim responseData As String
Dim postData As String = "login=testexpert@yahoo.com&password=testexpert"
Dim cookies As CookieContainer = New CookieContainer()
Dim requestWriter As StreamWriter

Try
'get login page with cookies
    strUrl = "https://www.ideeli.com/login"
    webRequest = HttpWebRequest.Create(strUrl)
    webRequest.CookieContainer = cookies

'recieve non-authenticated cookie
    webRequest.GetResponse().Close()

'post form data to page
    strUrl = "https://www.ideeli.com/login"
    webRequest = HttpWebRequest.Create(strUrl)
    webRequest.Method = WebRequestMethods.Http.Post
    webRequest.ContentType = "application/x-www-form-urlencoded"
    webRequest.CookieContainer = cookies
    webRequest.ContentLength = postData.Length

    requestWriter = New StreamWriter(webRequest.GetRequestStream)
    requestWriter.Write(postData)
    requestWriter.Close()

'recieve authenticated cookie
    webRequest.GetResponse().Close()

'now we get the authenticated page
    webRequest = HttpWebRequest.Create("http://www.ideeli.com")
    webRequest.CookieContainer = cookies
    responseReader = New StreamReader(webRequest.GetResponse.GetResponseStream())
    responseData = responseReader.ReadToEnd()
    responseReader.Close()
    strRequestedHTML = responseData


Catch ex As Exception
    ErrorLabel.Text += "<br />There was an error going to this site: " + strUrl + "<br> Error: " + ex.Message
    Return
End Try

Open in new window

0

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Foolproof security solutions has become one of the key necessities of every e-commerce or Internet banking website. If you too own an online shopping site then its vital for you to equip your web portal with customer security features that can allow…
Real-time is more about the business, not the technology. In day-to-day life, to make real-time decisions like buying or investing, business needs the latest information(e.g. Gold Rate/Stock Rate). Unlike traditional days, you need not wait for a fe…
Wufoo.com provides powerful tools for surveying targeted groups, and utilizing data from completed surveys to find trends, discover areas of demand or customer expectation, and make business decisions on products or services.
Use Wufoo, an online form creation tool, to make powerful forms. Learn how to selectively show certain fields based on user input using rules to gather relevant information and data from your forms. The rules feature provides you with an opportunity…

719 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question