import * as nodemailer from 'nodemailer';
import { Inject, Injectable } from '@nestjs/common';
import { validate as validateEmail } from 'deep-email-validator';
import { MetaService } from '@/core/MetaService.js';
import { DI } from '@/di-symbols.js';
import type { Config } from '@/config.js';
import type Logger from '@/logger.js';
import type { UserProfilesRepository } from '@/models/index.js';
import { LoggerService } from '@/core/LoggerService.js';
import { bindThis } from '@/decorators.js';
@Injectable()
export class EmailService {
private logger: Logger;
constructor(
@Inject(DI.config)
private config: Config,
@Inject(DI.userProfilesRepository)
private userProfilesRepository: UserProfilesRepository,
private metaService: MetaService,
private loggerService: LoggerService,
) {
this.logger = this.loggerService.getLogger('email');
}
@bindThis
public async sendEmail(to: string, subject: string, html: string, text: string) {
const meta = await this.metaService.fetch(true);
const iconUrl = `${this.config.url}/static-assets/mi-white.png`;
const emailSettingUrl = `${this.config.url}/settings/email`;
const enableAuth = meta.smtpUser != null && meta.smtpUser !== '';
const transporter = nodemailer.createTransport({
host: meta.smtpHost,
port: meta.smtpPort,
secure: meta.smtpSecure,
ignoreTLS: !enableAuth,
proxy: this.config.proxySmtp,
auth: enableAuth ? {
user: meta.smtpUser,
pass: meta.smtpPass,
} : undefined,
} as any);
try {
// TODO: htmlサニタイズ
const info = await transporter.sendMail({
from: meta.email!,
to: to,
subject: subject,
text: text,
html: `<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>${ subject }</title>
<style>
html {
background: #eee;
}
body {
padding: 16px;
margin: 0;
font-family: sans-serif;
font-size: 14px;
}
a {
text-decoration: none;
color: #86b300;
}
a:hover {
text-decoration: underline;
}
main {
max-width: 500px;
margin: 0 auto;
background: #fff;
color: #555;
}
main > header {
padding: 32px;
background: #86b300;
}
main > header > img {
max-width: 128px;
max-height: 28px;
vertical-align: bottom;
}
main > article {
padding: 32px;
}
main > article > h1 {
margin: 0 0 1em 0;
}
main > footer {
padding: 32px;
border-top: solid 1px #eee;
}
nav {
box-sizing: border-box;
max-width: 500px;
margin: 16px auto 0 auto;
padding: 0 32px;
}
nav > a {
color: #888;
}
</style>
</head>
<body>
<main>
<header>
<img src="${ meta.logoImageUrl ?? meta.iconUrl ?? iconUrl }"/>
</header>
<article>
<h1>${ subject }</h1>
<div>${ html }</div>
</article>
<footer>
<a href="${ emailSettingUrl }">${ 'Email setting' }</a>
</footer>
</main>
<nav>
<a href="${ this.config.url }">${ this.config.host }</a>
</nav>
</body>
</html>`,
});
this.logger.info(`Message sent: ${info.messageId}`);
} catch (err) {
this.logger.error(err as Error);
throw err;
}
}
@bindThis
public async validateEmailForAccount(emailAddress: string): Promise<{
available: boolean;
reason: null | 'used' | 'format' | 'disposable' | 'mx' | 'smtp';
}> {
const meta = await this.metaService.fetch();
const exist = await this.userProfilesRepository.countBy({
emailVerified: true,
email: emailAddress,
});
const validated = meta.enableActiveEmailValidation ? 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
}) : { valid: true, reason: null };
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,
};
}
}