Question

webrequest POST data help

Asked by: leeCh

can anyone please tell me why and how this code isnt working correctly?
also how would i fix it? and can i implement cookies using webrequest?...if not is there another  way of doing this and  have it log in and hold cookies?

Private Sub SendIT(ByVal E As String, ByVal P As String)
 
        ' Create a request using a URL that can receive a post. 
        Dim request As WebRequest = WebRequest.Create("http://login.myspace.com/index.cfm?fuseaction=login.process")
        ' Set the Method property of the request to POST.
        request.Method = "POST"
        ' Create POST data and convert it to a byte array.
        Dim postData As String = "&email=" & E & "&password=" & P
        Dim byteArray As Byte() = Encoding.UTF8.GetBytes(postData)
        ' Set the ContentType property of the WebRequest.
        request.ContentType = "application/x-www-form-urlencoded"
        ' Set the ContentLength property of the WebRequest.
        request.ContentLength = byteArray.Length
 
 
        ' Get the request stream.
        Dim dataStream As Stream = request.GetRequestStream()
        ' Write the data to the request stream.
        dataStream.Write(byteArray, 0, byteArray.Length)
        ' Close the Stream object.
        dataStream.Close()
        ' Get the response.
        Dim response As WebResponse = request.GetResponse()
        ' Display the status.
        Console.WriteLine(CType(response, HttpWebResponse).StatusDescription)
        ' Get the stream containing content returned by the server.
        dataStream = response.GetResponseStream()
        ' Open the stream using a StreamReader for easy access.
        Dim reader As New StreamReader(dataStream)
        ' Read the content.
        Dim responseFromServer As String = reader.ReadToEnd()
        ' Display the content.
        'Console.WriteLine(responseFromServer)
        Grabber.Text = Grabber.Text & vbCrLf & responseFromServer
        ' Clean up the streams.
        reader.Close()
        dataStream.Close()
        response.Close()
 
    End Sub

                                  
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
32:
33:
34:
35:
36:
37:
38:
39:
40:

Select allOpen in new window

This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.

Subscribe now for full access to Experts Exchange and get

Instant Access to this Solution

  • Plus...
  • 30 Day FREE access, no risk, no obligation
  • Collaborate with the world's top tech experts
  • Unlimited access to our exclusive solution database
  • Never be left without tech help again

Subscribe Now

Asked On
2008-12-06 at 00:15:51ID23962684
Tags

webrequest post data help login cookies

Topic

Microsoft Visual Basic.Net

Participating Experts
1
Points
20
Comments
14

Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.

  • "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
  • "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
  • "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.

See what Experts Exchange can do for you.

Got a question?

We've got the answer.

Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.

Screenshot of Experts Exchange Knowledgebase

Need individual assistance?

Our experts are ready to help.

If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.

Screenshot of Experts Exchange Knowledgebase

Want to learn from the best?

Read articles from industry experts.

Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.

Screenshot of an Article

Working on a long term project?

Store your work and research.

Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.

Screenshot of Experts Exchange Knowledgebase

Access the answers to your technology questions today.

Subscribe Now

30-day free trial. Register in 60 seconds.

What Makes Experts Exchange Unique?

Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Trusted by the world's most respected brands.

image of each brand's logo

Faithfully serving IT professionals since 1996.

Experts Exchange Logo

Try it out and discover for yourself.

Subscribe Now

30-day free trial. Register in 60 seconds.

Related Solutions

  1. WebRequest Progress Bar
    I am using WebRequest. I call about 50 URLs and get the source of them. I would like to create a progress bar that shows after every WebRequest call it shows finished and the url that was completed. Currently I load the aspx page, it calls the URLS and the page stays white ti...
  2. "WebRequest" problem.
    I have this code: Private Sub GetHTMLSource(ByVal url As String) Dim req As WebRequest = WebRequest.Create(url) Dim res As WebResponse = req.GetResponse() Dim iTotalBuff As Integer = 0 Dim Buffer(128) As [Byte] Dim stream As Stream = r...
  3. webrequest
    I am posting a file to my webapplication, it will get processed (Split and save in database) at the web application. This process takes long time... and user has to wait till it finishes, so that to post another file for processing... I don't want user to wait till the file ...
  4. Using WebBrowser credentials for WebRequest object
    I'm building a .NET windows forms application to access an ASP.NET web app. The web app allows users to generate custom reports in Excel format and then download them. I have used a WebBrowser control and DOM to log on to the site and generate the report I want. I'm now tryin...

Free Tech Articles

  1. WARNING: 5 Reasons why you should NEVER fix a computer for free.
    It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
  2. SCCM OSD Basic troubleshooting
    SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
  3. Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
    This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
  4. Create a Win7 Gadget
    This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
  5. Outlook continually prompting for username and password
    There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
  6. Backup Exchange 2010 Information Store using Windows Backup
    There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...

Cloud Class Webinars

  1. Avoiding Bugs in Microsoft Access
    Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
  2. Top 10 Best New Features in Visio 2010
    Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
  3. IT Consultant Business Secrets Revealed
    Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
  4. Disaster Recovery and Business Continuity
    Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
  5. Organize Your Visio Diagrams with Containers and Lists
    Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
  6. How to Us Objects, Properties, Events and Methods in Microsoft Access
    Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...

Join the Community

Give a Little. Get a Lot.

Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.

Join the Community

Answers

 

by: drichardsPosted on 2008-12-06 at 21:40:13ID: 23114872

What doesn't work?  The only thing I see is that you probably don't want the & in front of "email" in the line:

Dim postData As String = "&email=" & E & "&password=" & P

This causes an empty field at the start for a total of 3 fields - blank, email, and password.

As for the cookies, try casting the WebRequest to HttpWebRequest and use CookieContainer.  You can receive cookies and then use them in subsequent requests.

 

by: leeChPosted on 2008-12-06 at 23:15:00ID: 23114994

the & at the beginning was trial and error....i just never removed it from one of the code attempts i tried....


how would i go about "casting" webrequest over to httpwebrequest?

this whole thing was alot easier back on vb6 and winsock lol


could you paste an example of the  cookie container being used with  casting httpwebrequest?....i think the cookies might be the whole problem asfar as the logging in part but im not 100% sure


how would i attach the httpwebrequest cookie container to webrequest?...im not seeing anyway form of container on webrequest :|

 

by: drichardsPosted on 2008-12-07 at 09:25:50ID: 23116486

Attach a CookieContainer to your request:

        Dim myUrl As String = "http://login.myspace.com/index.cfm?fuseaction=login.process"
        Dim request As HttpWebRequest = CType(WebRequest.Create(myUrl), HttpWebRequest)
        Dim cc As CookieContainer = New CookieContainer()
        request.CookieContainer = cc

Then just hang on to the container after it is populated and use it for future requests.

 

by: leeChPosted on 2008-12-07 at 23:52:57ID: 23119114

does that method work as a post?

 

by: leeChPosted on 2008-12-08 at 00:16:36ID: 23119156

ok i see it works as a POST but  im still getting the same results....its not logging in...

would someone mind testing this out please...

 

by: drichardsPosted on 2008-12-08 at 01:04:14ID: 23119268

Where did you get the form data to post?  I don't have a myspace login, but I submitted a bogus email/password to see what the request looks like and got what you see below.  Is it possible to login with the simplified data you are using?  The post from the page is completely different.

__VIEWSTATE=%2FwEPDwUJNTU4OTgyNDc1ZBgBBR5fX0NvbnRyb2xzUmVxdWlyZVBvc3RCYWNrS2V5X18WAQUnY3RsMDAkY3BNYWluJExvZ2luQm94JFJlbWVtYmVyX0NoZWNrYm94&NextPage=&ctl00%24cpMain%24LoginBox%24Email_Textbox=user@mail.com&ctl00%24cpMain%24LoginBox%24Password_Textbox=password1&dlb=Log+In&ctl00%24cpMain%24LoginBox%24SingleSignOnHash=&ctl00%24cpMain%24LoginBox%24SingleSignOnRequestUri=&ctl00%24cpMain%24LoginBox%24nexturl=&ctl00%24cpMain%24LoginBox%24apikey=&ctl00%24cpMain%24LoginBox%24ContainerPage

 

by: leeChPosted on 2008-12-08 at 05:27:35ID: 23120194

i used a post program that wasnt designed for this purpose and the end result was the  sniffer showed i logged in and the only 2 parameters i had it enter in was email and password


when checking the sniffer that was all that got sent in the post if i recall

however i did notice when logging in with  the poster and trying to login using webrequest....

the poster  has 2 out going packets then a bunch coming in....and using webrequest the  packets
sent are 1 out....1 in...1 out....then a bunch coming in

 

by: drichardsPosted on 2008-12-08 at 06:39:46ID: 23120719

As I said, I don't have a myspace account to actually log in to, so you'll need to get someone with an account to get you farther than this.

Do you at least see the CookieContainer get populated with cookies?  I do get a set of Cookies when I try to log in with the bogus credentials when I use your code and parameters.

 

by: leeChPosted on 2008-12-08 at 06:59:38ID: 23120869

this is going to cause to to pull all my hair out lmao

using cc.count i got 3 cookies i think....but how to use them i have no idea and also
i dont know what the correct login format is for myspace... iv been googleing this for
the majority of the last 2 weeks trying to figure out the correct format needed and
also a good replacement for the vb6 winsock i left by switching to vb2005 lol


normally when i need help i just google it and i either find the answer or i am inspired
to either try something  and it works or i end up finding another way to get the end result
but no one that knows how to login to myspace is talkin about it lol


this is what i have codewise and its not getting me anywhere at the moment

 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        ' Create a request using a URL that can receive a post. 
        Dim myUrl As String = "http://login.myspace.com/index.cfm?fuseaction=login.process"
        Dim request As HttpWebRequest = CType(WebRequest.Create(myUrl), HttpWebRequest)
        Dim cc As CookieContainer = New CookieContainer()
        request.CookieContainer = cc
        ' Set the Method property of the request to POST.
        request.Method = "POST"
        ' Create POST data and convert it to a byte array.
        Dim postData As String = "email=m8ter69%40hotmail.com&password=catscats"
        Dim byteArray As Byte() = Encoding.UTF8.GetBytes(postData)
        ' Set the ContentType property of the WebRequest.
        request.ContentType = "application/x-www-form-urlencoded"
        ' Set the ContentLength property of the WebRequest.
        request.ContentLength = byteArray.Length
 
 
        ' Get the request stream.
        Dim dataStream As Stream = request.GetRequestStream()
        ' Write the data to the request stream.
        dataStream.Write(byteArray, 0, byteArray.Length)
        ' Close the Stream object.
        dataStream.Close()
        ' Get the response.
        Dim response As WebResponse = request.GetResponse()
        ' Display the status.
        Console.WriteLine(CType(response, HttpWebResponse).StatusDescription)
        ' Get the stream containing content returned by the server.
        dataStream = response.GetResponseStream()
        ' Open the stream using a StreamReader for easy access.
        Dim reader As New StreamReader(dataStream)
        ' Read the content.
        Dim responseFromServer As String = reader.ReadToEnd()
        ' Display the content.
        'Console.WriteLine(responseFromServer)
        Grabber.Text = Grabber.Text & vbCrLf & responseFromServer
        ' Clean up the streams.
        reader.Close()
        dataStream.Close()
        response.Close()
        Cookiez.Text = Cookiez.Text & vbCrLf & cc.Count
    End Sub

                                              
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
32:
33:
34:
35:
36:
37:
38:
39:
40:
41:
42:

Select allOpen in new window

 

by: drichardsPosted on 2008-12-10 at 21:04:04ID: 23145884

Assuming you get logged in, you just attach that (now populated) CookieContainer to any subsequent requests.  The trick is figuring out the necessary magic to get successfuly logged in.  That, I so not know.  The correct URL, though, seems to be:

https://secure.myspace.com/index.cfm?fuseaction=login.process

as that is what shows up when I hover over the Login button on the home page.  And it seems you need to post at a minimum (based on my previous post with the POST data):

ctl00%24cpMain%24LoginBox%24Email_Textbox=<your email>&ctl00%24cpMain%24LoginBox%24Password_Textbox=<your password>

which is the user and password.  It's unclear how much of the rest of the data you need.  The viewstate might be important. and this one:

dlb=Log+In

looks potentially important.  A lot of the others are empty, like NextPage, nexturl, SingleSignOnHash, SingleSignOnRequestUri, etc.

And unfortunately, you get a message saying the account has too many logon attempts and then they send a captcha as well.  I was using some bogus credentials and got that message after a couple of tries.

Unless you can find a definitive statement of the logon process, it will be hard to figure out.  You could just try the email, password, and dlb and see what happens.  Seems unlikely to work without all the stuff though as they seem to try to prohibit automatic logins.

 

by: leeChPosted on 2008-12-11 at 14:38:24ID: 23153211

it works fine using this post program that wasnt designed for this purpose so i dunno



POST /index.cfm?fuseaction=login.process HTTP/1.1
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3 (.NET CLR 3.5.30729)
Host: login.myspace.com
Content-Length: 47
Connection: Keep-Alive

email=<myemail>&password=<mypassword>



then in return from sending them that i get this back

HTTP/1.1 302 Object Moved


but then 2 more /GET's come back and the final result after sifting through the packet sniffer is that im logged in


 

by: drichardsPosted on 2008-12-11 at 18:05:55ID: 23154211

Interesting that they have an alternative login scheme to the login page.  Makes you wonder if it's documented somewhere...

 

by: leeChPosted on 2008-12-11 at 19:49:42ID: 23154846

its semi entertaining actually....iv checked everywhere for someone else that wanted to do this same thing yet there isn't any answers anywhere lmao....its like the internet is oblivious on how to execute this task O_o...

maybe some master coder will pop out of the wood works with mystical knowledge everyone's hiding lmao

 

by: leeChPosted on 2009-02-07 at 22:27:28ID: 23582367

i changed the  way I'm doing this....instead I'm using a web browser and hiding it and using this to login

then i just dispose of the browser after getting the needed info

WebBrowser1.Document.Forms(1).All("ctl00$ctl00$cpMain$cpMain$LoginBox$Email_Textbox").SetAttribute("value", txtEmail.Text)
        WebBrowser1.Document.Forms(1).All("ctl00$ctl00$cpMain$cpMain$LoginBox$Password_Textbox").SetAttribute("value", txtPass.Text)
        WebBrowser1.Document.Forms(1).All("dlb").InvokeMember("click")

                                              
1:
2:
3:

Select allOpen in new window

20120131-EE-VQP-002

3 Ways to Join

30-Day Free Trial

The Experts

98% positive feedback on 31,087 answers since March 2000. angeliii is a Microsoft Most Valuable Professional for his work with MS SQL Server & Develoment.

He has also proven his knowledge of Visual Basic Programming, PHP Scripting and Oracle Databases.

The Experts

97% positive feedback on 10,752 answers since July 2000. lrmoore has more than 18 years experience in the networking industry.

The six-time Mircosoft MVPs specialties include firewalls, virtual private networking, and network management.

Testimonials

"...and excellent source for support... Kind of like having your very own IT dept." Electriciansnet

Testimonials

"I was apprehensive at signing up at first. However... it has already made my life as an IT administrator much easier." JaCrews

Testimonials

"WOW! You guys have great, active, and knowledgeable people on here." moore50

Business Clients

Business Clients

In the Press

"If you’ve got a question... Experts Exchange can supply an answer.”

In the Press

"...an invaluable aid for both IT professionals and those who require tech support."

In the Press

"where IT professionals provide quick answers on just about any topic"

Business Account Plans

Loading Advertisement...