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import { validate as validateEmail } from 'deep-email-validator';
import { UserProfiles } from '@/models/index.js';
export async function validateEmailForAccount(emailAddress: string): Promise<{
available: boolean;
reason: null | 'used' | 'format' | 'disposable' | 'mx' | 'smtp';
}> {
const exist = await UserProfiles.countBy({
emailVerified: true,
email: emailAddress,
});
const validated = await validateEmail({
email: emailAddress,
validateRegex: true,
validateMx: true,
validateTypo: false, // TLDを見ているみたいだけどclubとか弾かれるので
validateDisposable: true, // 捨てアドかどうかチェック
validateSMTP: false, // 日本だと25ポートが殆どのプロバイダーで塞がれていてタイムアウトになるので
});
const available = exist === 0 && validated.valid;
return {
available,
reason: available ? null :
exist !== 0 ? 'used' :
validated.reason === 'regex' ? 'format' :
validated.reason === 'disposable' ? 'disposable' :
validated.reason === 'mx' ? 'mx' :
validated.reason === 'smtp' ? 'smtp' :
null,
};
}
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