Hariom BalharaandGitHub
37cec89bf6
* fix: Support domains without @ prefix in watchlist * fix: free email domain check
94 lines
2.5 KiB
TypeScript
94 lines
2.5 KiB
TypeScript
import { emailRegex } from "@calcom/lib/emailSchema";
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/**
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* Centralized normalization utilities for emails and domains
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*
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*/
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/**
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* Normalizes an email address for consistent comparison
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*
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* Rules applied:
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* 1. Convert to lowercase
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* 2. Trim whitespace
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* 3. Validate basic email format
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*
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* @param email - Raw email address
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* @returns Normalized email address
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* @throws Error if email format is invalid
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*/
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export function normalizeEmail(email: string): string {
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const normalized = email.trim().toLowerCase();
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if (!emailRegex.test(normalized)) {
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throw new Error(`Invalid email format: ${email}`);
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}
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return normalized;
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}
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/**
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* Normalizes a domain for consistent comparison
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*
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* Rules applied:
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* 1. Convert to lowercase
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* 2. Trim whitespace
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* 3. Remove @ prefix if present
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*
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* Note: Domains are stored without @ prefix (e.g., mail.google.com, example.co.uk)
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* No subdomain stripping is performed to avoid multi-level TLD issues.
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* If you want to block subdomains separately, create separate entries.
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*
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* @param domain - Raw domain (with or without @ prefix)
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* @returns Normalized domain without @ prefix
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*/
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export function normalizeDomain(domain: string): string {
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let normalized = domain.trim().toLowerCase();
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if (normalized.startsWith("@")) {
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normalized = normalized.slice(1);
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}
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const domainRegex =
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/^[a-zA-Z0-9\u00a1-\uffff]([a-zA-Z0-9\u00a1-\uffff-]*[a-zA-Z0-9\u00a1-\uffff])?(\.[a-zA-Z0-9\u00a1-\uffff]([a-zA-Z0-9\u00a1-\uffff-]*[a-zA-Z0-9\u00a1-\uffff])?)*$/;
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if (!domainRegex.test(normalized)) {
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throw new Error(`Invalid domain format: ${domain}`);
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}
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return normalized;
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}
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/**
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* Extracts and normalizes domain from an email address
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*
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* @param email - Email address
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* @returns Normalized domain without @ prefix
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*/
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export function extractDomainFromEmail(email: string): string {
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const normalizedEmail = normalizeEmail(email);
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const domain = normalizedEmail.split("@")[1];
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if (!domain) {
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throw new Error(`Could not extract domain from email: ${email}`);
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}
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return normalizeDomain(domain);
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}
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/**
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* Normalizes a username for consistent comparison
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*
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* Rules applied:
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* 1. Convert to lowercase
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* 2. Trim whitespace
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*
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* @param username - Raw username
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* @returns Normalized username
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*/
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export function normalizeUsername(username: string): string {
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if (!username || typeof username !== "string") {
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throw new Error("Invalid username: must be a non-empty string");
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}
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return username.trim().toLowerCase();
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}
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