18 lines
657 B
TypeScript
18 lines
657 B
TypeScript
export const DOMAIN_BLOCK_ERROR =
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"Signing up with a @deckyvault.xyz email is not allowed."
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/**
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* Returns true if the email address has a deckyvault.xyz domain.
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* Handles case-insensitive comparison, whitespace trimming, and
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* plus-notation aliases (user+tag@domain → domain).
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*
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* Only matches the exact domain "deckyvault.xyz" — NOT subdomains
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* like "mail.deckyvault.xyz".
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*/
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export function isDeckyVaultEmail(email: string): boolean {
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const trimmed = email.trim().toLowerCase()
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const atIndex = trimmed.lastIndexOf("@")
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if (atIndex === -1) return false
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const domain = trimmed.slice(atIndex + 1)
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return domain === "deckyvault.xyz"
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} |