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VBA - scraping websites videos | Excel VBA Part 47.4 - Logging in to a Website with Windows Security

Posted by Andrew Gould on 03 June 2019

This video explains how to use VBA to enter Windows Security credentials when you connect to a website. You'll learn how to pass a username and password when you send an XML HTTP request. You'll also learn how to use the Windows Script Host Shell object to access the security dialog box and write a username and password using the SendKeys method.

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This page has 4 threads Add post

Pete Reply to Pete Reply

13 Apr 20 at 13:16

Hi Andrew,

hope that you´re still fine!

I have perhaps, a small prob.

I want to login a specific Web SideTherefore I found your video and tried .

But .. I can not login

I can open the specific Web Site.

(After watching your Vidio and typed the Code in a Module)

The First error I got is at the point

Debug.Print...inner Text (see first Sub)

There is nothing shown in the "Direct Window"

I got the error : "Variable of Object or with ... not declared"

Trying the 2nd Sub I got the error at the Step

Do While IE.ReadyState.. READYSTATE_COMPLTE

I found out that I got the error Run Time Errore at the sequence Do While EReadyState (Runtime error 21470 231 79)

and at the sequenz "READYSTATECOMPLTE" it is shown = 4

What have I done?

So.. I tried to activate Net Framework. but I´m not allowed to do this (I´m not the administrator.. unfortunately)

What is the source Code of the Webside?

For User Name

form name ="pnForm"... id = "pnForm"

input name = "a1234..." width = "0" Title = "User name input" ... id = "Enter user name"

What do I see wenn Net Side is openend?

User Name then a field to type in the user name

Below

Password then a field to type in the password

and after this a button to sign in

I hope taht I could descripe my prob and will hope that you have an idea what´s goin wrong ?

Take Care !

Pete

Andrew G Reply to Andrew G Reply

14 Apr 20 at 10:14

Hi Pete, this video shows a different technique for logging into a website to the one you're describing. I think you need some of the techniques shown in an earlier video https://www.wiseowl.co.uk/vba-macros/videos/vba-scrape-websites/scraping-web-pages/

In that video you can see some examples of entering text into a form and clicking a button. I hope it helps!

marklah Reply to marklah Reply

21 Nov 19 at 19:56

Hi Andrew,

Thanks a lot for such very informative videos.

I have tried dozens of different websites but have not got the login pop-up window shown on the video . I even created an account on wise owl and used the URL https://www.wiseowl.co.uk/user/private and also did not see the login window. Am i missing anything? Any website I should use to test that login code?

Thanks and looking forward to hearing from you.

Andrew G Reply to Andrew G Reply

22 Nov 19 at 09:01

Hi there, no don't worry, you haven't missed anything! Not many websites use Windows security to validate user credentials. The websites which do tend to be internal systems such as the one I used in this video which is Wise Owl's internal diary system. Here's a brief description of how to configure a website to use Windows authentication https://support.microsoft.com/en-gb/help/323176/how-to-implement-windows-authentication-and-authorization-in-asp-net

I hope that helps!

marklah Reply to marklah Reply

25 Nov 19 at 21:57

Many thanks Andrew. Actually i noticed later that it was my IE settings to have an auto login using my current credentials. When i change the setting to prompt for username then i started seeing that login security window on the intranet site :) . i a m still getting an error on Do While IE.readyState <> READYSTATE_COMPLETE Or IE.Busy for a reason but its not a big matter though i believe it smth to do with my intranet site.

Thanks again and much respect !

Andrew G

26 Nov 19 at 08:42

That's great! Pleased to hear that you're making progress!

Eric Zhang Reply to Eric Zhang Reply

01 Sep 19 at 14:15

Hi, Andrew,

realy appreciated for your kind reply. after study your video i'm able to login the web by using IE mode, thanks again, i will need more study on this XML mode. i study some article about using Fiddler to analyze the setrequestheader and Cookie method.

thanks, have a good day.

Andrew G Reply to Andrew G Reply

02 Sep 19 at 07:26

You're very welcome, Eric. I hope you find a solution to your problem!

Eric Zhang Reply to Eric Zhang Reply

28 Aug 19 at 11:14

Realy appreciated for those video, is there any way to sign in a web by using XML method.

Andrew G Reply to Andrew G Reply

29 Aug 19 at 07:32

Hi Eric,

Yes, we do explain how to do that in the video, or did you mean something different?

Eric Zhang Reply to Eric Zhang Reply

29 Aug 19 at 08:06

Thanks for reply, i did see the video, the method is that VBA can pass username and password to the web. but faild. the reason is might username field is encode by base64, i guess. below are the HTML code.

after google it, i found someone said, it has to use a fake cookie or hijact the js script.

Andrew G

29 Aug 19 at 11:44

Hi Eric,

The video is related to logging in using basic Windows security. From the code you've posted it looks as though you need to enter a username into an HTML element on the page. I answered a similar question on YouTube recently and include the code below to give you an idea of how to do this:

Sub TestLogin()

Dim ie As SHDocVw.InternetExplorerMedium
Dim doc As MSHTML.HTMLDocument
Dim LoginForm As MSHTML.HTMLFormElement
Dim UserNameInput As MSHTML.HTMLInputElement
Dim PasswordInput As MSHTML.HTMLInputElement

Set ie = New SHDocVw.InternetExplorer

ie.Visible = True
ie.navigate "https://www.marketingscents.com/index?page=login-new"

Do While ie.readyState <> READYSTATE_COMPLETE And ie.Busy
Loop

Set doc = ie.document
Set LoginForm = doc.getElementById("js-login-form")
Set UserNameInput = LoginForm.getElementsByClassName("form-control input-lg")(0)
Set PasswordInput = LoginForm.getElementsByClassName("form-control input-lg")(1)

UserNameInput.Value = "my user name"
PasswordInput.Value = "my password"
LoginForm.submit

End Sub

If the page involves javascript I believe that you need to use the browser rather than the XML approach, although I don't consider myself an expert in this at all! If you need to simulate cookies or obtain security tokens, this is somewhat more complicated.

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