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LimeSurvey version: LimeSurvey Community Edition Version 6.10.0+250106
Own server or LimeSurvey Cloud:  own (organization) 
Survey theme/template: Fruity TwentyThree ( extends_fruity_twentythree )
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Hello, 

I’m working on a closed-based survey and was wondering if it’s possible to use email addresses as tokens (access codes). I tried following the steps in a thread ( Using email as token ) posted 6 years ago. I’ve tried directly inputting emails into the token field, but it doesn’t seem to work as well. I’d like participants to enter their email addresses as their access codes when accessing the survey.Here are my questions:

1. Is it technically possible to use email addresses as tokens in LimeSurvey?
2. If not, is there a workaround to achieve this? For instance, allowing participants to input their email address as an "access code"?

Thanks again for your time! 

Marlo 

What's the reason to do this?
Do you want to invite people by personal email, saying "Please, enter your email address to access the survey"
 
Here the participant may have several email addresses and doesn't know which one.

Or do you only want to have the email address in the survey to send some results to the participant at the end of the survey?
You may use additional attributes which are accessibenle in a closed survey.

Or what eles do you have in mind?

The thread you referred to is something else. Here the TO asked about a panel integration.

So, please explain.

Joffm

Thanks for your quick response!

Just briefly... we want to use the participant's email address as the token for entering the survey. So the process is as follows:

1. Participants first complete the questionnaires in Cambian (external survey).

2. They are automatically redirected to Lime after completing the last questionnaire in Cambian

3. The need to enter the email address in Lime as a token (password) for being able to access the survey

I hope this helps!

Do you suggest a better or alternative process? I'm also reading the manual to see if public registration is a better bet.


M.

Why fo the "need" to use the email address?
Why can't they use any other token?

I was talking to my team yesterday, and they told me they prefer using email as the token. I suggested using other options, such as last name or first name, since tokens are meant to be alphanumeric. However, they still want to know if it’s possible to use special characters as a token.

I might need to convince them to abandon the use of email as a token if there’s no workaround.

Yeah, you can.

Edit the function "sanitzeToken" in "application/models/Token.php"
 

Oh, great! Thanks!

Which tab or settings should  I got to do this: 

[Edit the function "sanitzeToken" in "application/models/Token.php"

I couldn't find it at Configuration > Themes  or even at Configuration > Dashboard. I'm an admin user but not a superadmin user. 


 

It's in the source code of Limesurvey.
Bit beeare: Changes here are overwritten by an update.

As Joffm said, this is not a setting in Limesurvey, but you are "hacking" the source code. So this needs to be done by someone who has access to the files on the server and knows what they are doing in terms of coding.

And with any update, this can be overwritten, which is why this should be avoided. Because at the end, what will mostlikely happen? You won't be updating Limesurvey anymore...

Ask it as feature request : community.limesurvey.org/feature-request/
1 .Allow more characters in token
2. restricted characters for token by config : github.com/LimeSurvey/LimeSurvey/blob/e1...odels/Token.php#L314

I think 2 are an excellent solution !!!
 

Thanks everyone! Yes, I reached out to our superadmin to hack the installation/update the preg_replace pattern to allow email addresses. Here's the code I suggested: 

public static function sanitizeToken($token){// Allow alphanumeric characters, dots, hyphens, underscores, and @return preg_replace('/[^A-Za-z0-9._@-]/', '', $token);}

I also informed them that any updates will overwrite it. I'll send a request to Lime, and hopefully, they can add special characters as tokens in the future.

Cheers! 
Marlo