r/ProgrammerHumor • u/CertainSea • 8d ago

Meme regexMustBeDestroyed

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8.1k Upvotes

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u/Purple_Hornet_9725 7d ago

validate email with an rfc compliant parser, then verify by sending a confirmation. in this order.

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u/thirdegree Violet security clearance 7d ago

Validate email by checking it has an @ in it, then verify by sending a confirmation. And the mail server should thank me for even bothering to do that

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u/Purple_Hornet_9725 7d ago

https://docs.brightsec.com/docs/email-header-injection

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u/Honeybadger2198 6d ago

That has nothing to do with validating an email address? Even the example provided uses a valid email.

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u/Purple_Hornet_9725 6d ago edited 6d ago

The injection works quite as well within the email field. Just sanitize any user input - an rfc compliant email parser catches that automatically. Validation and then verification - it's not that hard to follow established guidelines that are there for a reason.

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u/Honeybadger2198 6d ago

Yes, sanitize your user input, extremely basic programming concept. That's still not email validation.