kefu/lib/notify.go

65 lines
1.6 KiB
Go

package lib
import (
"encoding/base64"
"fmt"
"github.com/emersion/go-sasl"
"github.com/emersion/go-smtp"
"github.com/go-playground/validator/v10"
"strings"
)
/**
发送通知类
*/
type Notify struct {
ReceiveName, Subject, MainContent string
EmailServer NotifyEmail
}
type NotifyEmail struct {
Server, From, Password string `validate:"required"`
FromName string
To []string
Port uint `validate:"required"`
}
/*
发送邮件
*/
func (this *Notify) SendMail() (bool, error) {
validate := validator.New()
emailServer := this.EmailServer
err := validate.Struct(emailServer)
if err != nil {
return false, err
}
err = SendSmtp(fmt.Sprintf("%s:%d", this.EmailServer.Server,
this.EmailServer.Port), this.EmailServer.From,
this.EmailServer.Password,
this.EmailServer.To,
this.Subject, this.MainContent, this.EmailServer.FromName)
if err != nil {
return false, err
}
return true, nil
}
func SendSmtp(server string, from string, password string, to []string, subject string, body string, fromName string) error {
auth := sasl.NewPlainClient("", from, password)
subjectBase := base64.StdEncoding.EncodeToString([]byte(subject))
fromHeader := fmt.Sprintf("From:=?UTF-8?B?%s?= <%s>\r\n", base64.StdEncoding.EncodeToString([]byte(fromName)), from)
msg := strings.NewReader(
fromHeader +
"To: " + strings.Join(to, ",") + "\r\n" +
"Subject: =?UTF-8?B?" + subjectBase + "?=\r\n" +
"Content-Type: text/html; charset=UTF-8" +
"\r\n\r\n" +
body + "\r\n")
err := smtp.SendMail(server, auth, from, to, msg)
if err != nil {
return err
}
return nil
}