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correos_api/src/mail/mail.service.ts
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import { Injectable } from '@nestjs/common';
import * as nodemailer from 'nodemailer';
import * as dotenv from 'dotenv';
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import { InjectRepository } from '@nestjs/typeorm';
import { Repository } from 'typeorm';
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import { Correo, Sistema, Status } from '../typeorm/votacionesPrueba.entity';
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dotenv.config();
@Injectable()
export class MailService {
private transporter;
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constructor(
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@InjectRepository(Correo) private readonly correoRepository: Repository<Correo>,
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@InjectRepository(Status) private readonly statusRepository: Repository<Status>,
) {
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/* this.transporter = nodemailer.createTransport({
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host: 'smtp-relay.gmail.com',
port: 587,
secure: false,
requireTLS: true,
auth: {
user: process.env.USER_GMAIL,
pass: process.env.PASS_GMAIL,
},
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}); */
this.transporter = nodemailer.createTransport({
host: 'smtp.gmail.com', // o smtprelay.gmail.com (ver punto 2)
port: 587,
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secure: false,
requireTLS: true, // TLS STARTTLS
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auth: { user: process.env.USER_GMAIL, pass: process.env.PASS_GMAIL },
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pool: true, // <‑‑ activa reuse
maxConnections: 1, // una sola conexión viva
maxMessages: 100, // reabrir después de 100 envíos
rateDelta: 2000, // ventana 1 s
rateLimit: 1 // máx. 5 mensajes/seg
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});
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/*
this.transporter = nodemailer.createTransport({
host: 'localhost',
port: 1025,
ignoreTLS: true,
});
*/
}
// Función para generar el reporte de correos enviados y fallidos
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async findAll(){
const result= await this.correoRepository.find({relations:['id_sistema','id_status']})
return result
}
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async sendMail(to: string, subject: string, text: string, html: string, fecha_recibido: Date, sistema, adjuntos?: any[] ) {
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console.log("estos son los archivos adjuntos en el service",adjuntos);
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const mailOptions = {
from: process.env.USER_GMAIL,
to,
subject,
text,
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html,
// OJO: nodemailer usa 'attachments', no 'adjuntos'
attachments: (adjuntos || []).map((adj) => {
// Asegúrate de no incluir 'data:image/png;base64,' en 'content'
let base64Clean = adj.content;
// Si viene con prefijo "data:image...", lo quitamos
if (base64Clean.startsWith('data:image/')) {
base64Clean = base64Clean.split('base64,')[1];
}
return {
filename: adj.filename || 'qr.png',
content: Buffer.from(base64Clean, adj.encoding || 'base64'),
cid: adj.cid || 'qrCode', // el mismo que uses en <img src="cid:..."/>
contentType: 'image/png' // recomendable para que sepa que es PNG
};
})
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};
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console.log(mailOptions);
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let resMail = await this.transporter.sendMail(mailOptions);
const statusTexto = resMail.accepted.length > 0 ? "Enviado" : "Fallido";
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let status = await this.statusRepository.findOne({ where: { status: statusTexto } });
if (!status) {
status = this.statusRepository.create({ status: statusTexto });
await this.statusRepository.save(status);
}
const info= this.correoRepository.create({
id_status: status,
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id_sistema: sistema,
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fecha_recibido: fecha_recibido,
fecha_enviado: new Date(),
destinatario: to,
remitente: process.env.USER_GMAIL,
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});
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if(!resMail){
throw new Error("fallo")
}
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this.correoRepository.save(info);
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return (statusTexto);
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}
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}