Login System

[Jamie37]

Hello,

I followed the simple login system tutorial on the livecode website and it went well. I currently have this code

Code: Select all

global sUsername, sPassword

on openCard
   get sUsername 
   get sPassword 
   put sUsername into sUsername1
   put sPassword into sPassword1
end openCard

on loginCheck
   if field "username" is sUsername and field "password" is sPassword then
     go to card "Access"
   else
      answer "Details incorrect. Please try again!"
   end if
end loginCheck

on openCard
   focus on fld "username"
end openCard

This basically checks for the username and password in a custom variable created through a separate registration page. What I want to do is ask the user whether or not they want to remember their details. I can get the dialog box to come up asking them the question, however I can not get another if statement to work under the current one which will allow me to get the result of the question and continue with the current code. Its hard to explain but hopefully somebody gets it and can help me.

Thanks
Jamie

[dunbarx]

Hi.

Probably need to see your code to help you.

I have never gone through a tutorial. Is the following code snippet really there?

Code: Select all

 get sUsername 
   get sPassword 

Do you see why I ask?

Craig Newman

[A1Qicks]

Hi.

Probably need to see your code to help you.

I have never gone through a tutorial. Is the following code snippet really there?

Code: Select all

 get sUsername 
   get sPassword 

Do you see why I ask?

Craig Newman

It's just a handholding thing. The code has to be reassured that the variables are filled, otherwise it gets nervous

[Jamie37]

Hi,

Sorry I probably should have uploaded this code as well. This code below is the button which puts the fields into the variables to be read.

Code: Select all

global sUsername, sPassword

on RegCheck
   put field "Regusername" into sUsername
   put field "Regpassword" into sPassword
end RegCheck

on openCard
   focus on fld "Regusername"
end openCard

on closeCard
   put empty into field "Regpassword"
   put empty into field "Regusername"
end closeCard

[Klaus]

Hi Jamie,

"get XYZ" will only put XYZ into the variable IT, so this does not make sense here and that is why Craig was asking

Not sure I understand your problem, but maybe this is what you are looking for?

Code: Select all

on loginCheck

   ## BOTH have to be correct!
   if field "username" <> sUsername OR field "password" <> sPassword then
      answer "Details incorrect. Please try again!"
      exit logincheck
   end if

   answer "Do you want me to remember your log in data?" with "Yes" or "No" or "Maybe?"
   if it = Yes" then
    ##  store username and password or do wahtever you want to do in that case...
  end if

   ## Finally:
   go to card "Access" 
end loginCheck

Best

Klaus

[FourthWorld]

As a side note, it's often considered useful to never store the password itself, but instead store a hashed version of the password, such as you can get using LC's sha1Digest function. This way if the stored password is ever compromised, the attacker still won't have the password itself (even more useful when we consider how frequently people use a single password for multiple services).

e.g.:

Code: Select all

  if field "username" <> sUsername OR field "password" <> sha1Direct(sPassword) then