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Password Screen

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Posted on by Sidhant_02

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Hi everyone,
I have created a login screen for the users to access the application, reset password option to change the password but now I wanted to add a layer of security. On the login button of the login screen I am using the If block inside that using !IsBlank to check both the fields (username and password are not blank) and then checking if it is present in the SharePointList using Lookup. If it is True then I am navigating to Home Screen else navigating to Incorrect Details screen:
Login Button: (On-Select)

Variable created OnStart of App: (To Check wrong password attempts)

But now I want to also check for Wrong password attempts (along with checking if the details are present in the Sharepoint list)
So I did try something like this:

But here my concerns were
1. If user enters wrong password the first time then the count will be incremented by 1 and they will navigate to Incorrect Details screen which is:

but what I want is similar to the normal flow first the application should check if the details are correct: If yes go to Home screen else if user enters wrong username/password (or details which are not there in SharePointList then they should be navigated to the Incorrect Details screen). Another scenario was if the record is present in the SharePoint list but if the user enters wrong password three times then I want to show another page and lock that user out for 10 minutes.
So would like your inputs on how to achieve this.

Regards,
Sidhant.

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Building Power Apps

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victorcp 2,350 Moderator on at

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Hi,
In this case I suggest you to add 2 new columns to your ShP:
Column to store how many times the user enter the wrong password (Attempts)
Column to verify if it is blocked or not (Blocked)
How does it will work?
Everytime the user enter a wrong password it will increase by 1 the Attempts columns when it reach 10 times it will set to true the column Blocked and trigger a flow which after 10 minutes will set the Attempts to 0 and blocked to false.
if the user enter the correct password the Attempts will be reset.
And create a condition to check if the user is blocked or not

That's it I hope it helps 🙂

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Sidhant_02 986 on at

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Hi,
So you are saying I add Automate Flow to my canvas application to check the number of attempts and the value in the blocked column, I will try this out if it is possible could you recreate the scenario which you explained. Also won't it be possible to have a variable (which I have, which checks the number of times user enters incorrect password and updates the counter value).

Regards,
Sidhant.

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victorcp 2,350 Moderator on at

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I would do something like this:
With( {account: LookUp('Login List',Title = TextInput1.Text)}, If( account.Blocked, // account is blocked Notify("Account is blocked", NotificationType.Error,1200), // account is not blocked If( IsBlank(account) || account.Password <> TextInput2.Text, // wrong user or pass If( account.Attempts = 9, // block account Patch('Login List',account,{Blocked:true}); Notify("Account has been blocked", NotificationType.Error,1200); Unblockaccount.Run(account.ID), // add one attempt Patch('Login List',account,{Attempts:account.Attempts+1}); Notify("Username or password not found or incorrect", NotificationType.Error,1200) ); Reset(TextInput1); Reset(TextInput2); Navigate('Incorrect Details'), // correct user and pass Navigate(Home); ) ) );

And the flow (Unblockaccount) is just to unblock the account, and here it is:
I hope it helps 🙂

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Sidhant_02 986 on at

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Thanks @victorcp ,
For the expression and flow, I will try this out and reply back if there is help required.

Regards,
Sidhant.

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Sidhant_02 986 on at

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Hi victor,
I used the expression which you had replied but for the second if statement it was displaying invalid arguments error. I have attached it with this reply. Another thing was for the flow that you have given, should I create from the canvas App itself and what should be the template for it?.
Is the error because no flow is created and I have to create that first, because in flow there are some fields which are mandatory one (like password, email, title) as in the sharepointlist I have made it mandatory because when a new user registers I want them to fill all these fields. So I created the flow first like

Regards,
Sidhant

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Sidhant_02 986 on at

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I created a blank flow from the Canvas App but after giving the site address and name Title, password, email were mandatory fields so in that what should be passed to it?
The 2 columns that you said to create in SharePoint list, one Attempts (this is a Number column)
And the 2nd column is a Blocked (which is a Yes/No) column:
Are these correct?. And as the two fields are mandatory I used the same dynamic expression for the remaining UpdateItem_Id:

In Sharepoint List:
So the previous issue of Invalid arguments in If statement were gone now after creating the Unblockaccount flow in Canvas App. So I tried entering wrong password for one of the account:
Username: Kimmy Pass: Kimmy@22 (correct details in list)
I entered: Username: Kimmy Password: 1234 (any random thing) and on click it should me the correct screen which is Incorrect details but when I checked the SharePointList to see if the attempts value is incremented or not there was nothing displayed in Attempts (Number column it was blank)

What is missing? @victorcp

Regards,
Sidhant.

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victorcp 2,350 Moderator on at

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I suggest add a 'Get Item' action (not Get ItemS) to retrieve the mandatory info, like this:
Any issue let me know

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Sidhant_02 986 on at

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Tried using Get in the Flow to retrieve the ID and entered incorrect details but the count was not started in the SharePoint List

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victorcp 2,350 Moderator on at

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The flow will trigger only if the number of attempts reach 9 (because it starts in 0) but you can change it whenever you want.
If the user tries with an incorrect pass it will add 1 to attempts

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Sidhant_02 986 on at

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Okay, so if user enters any incorrect details then the in the Attempts column there be should be an increment (start value is 0) so every time they enter incorrect details (user name or password) attempt value is incremented by 1 and when it reaches 10 they are not allowed to login again but before that (last attempt here 10th ) then they will be able to login and the flow will reset the attempts to 0 is it correct?.
But right now what is happening that after entering incorrect details it is navigating to the desired screen (Incorrect details) but the attempts column is not affected that is there is no value been shown in the SharePoint List column?, as you did say that when user enters incorrect password +1 is added in the Attempts column @victorcp .
So in the expression is there is counter been implemented for Attempts column (on every wrong input value is increased by 1)?

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