feat: IBAN validation

[ariskemper]

No description provided.

[netlify]

‼️ Deploy request for valibot rejected.

Name	Link
🔨 Latest commit	cd196ad

[fabian-hiller]

Thanks for working on this! I will review it in the next few days. Another validator that's missing is card or creditCard. There is already an isLuhnAlgo utility implemented for this.

[ariskemper]

@fabian-hiller will check isLuhnAlgo and add validator for credit cards.

[ariskemper]

@fabian-hiller could you review it and merge this PR?

[fabian-hiller]

Next week is the last week of this semester and I have one exam left. That's why I'm not that fast with reviewing right now. I will try to do it over the weekend or next week.

[fabian-hiller]

I am not an IBAN expert, but I suspect that your code does not detect a wrong IBAN in every case. For example, if you enter a letter instead of a number that happens to be converted to a valid number by (char.charCodeAt(0) - 55).toString(), isIBAN returns true.

I found validator.js on GitHub. Maybe we can get some inspiration from their isIBAN function.

[ariskemper]

@fabian-hiller could you give a case? This functon first check the length and then rearanges, so it moves first 4 chars at the end and after replaces chars from A-Z with a 2 digit number. If there would be 4 chars, it would replace those 4 with 2 digit number. On string of numbers then it perform mod97. I tested it against values from [validator.js] and i couldn't find any issue. (https://github.com/validatorjs/validator.js)
Validator.js has also whitelist and blacklist functionality.

[fabian-hiller]

Thank you for your feedback. I will check the code again.

[fabian-hiller]

Unfortunately, due to our rewrite a few months ago, this PR is no longer up to date with our source code. I still plan to add this action, but other things have a higher priority for me at the moment. If you or anyone else in the community is interested in creating a new PR, that would be great.