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office365Sender.go
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office365Sender.go
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package mailsender
import (
"crypto/tls"
"errors"
"log"
"net"
"net/smtp"
)
//auth365 auth365
type auth365 struct {
username string
password string
}
//Auth365 Auth365
func Auth365(username, password string) smtp.Auth {
return &auth365{username, password}
}
//Start Start
func (a *auth365) Start(server *smtp.ServerInfo) (string, []byte, error) {
return "LOGIN", []byte(a.username), nil
}
//Next Next
func (a *auth365) Next(fromServer []byte, more bool) ([]byte, error) {
var rtn []byte
var rtnErr error
if more {
switch string(fromServer) {
case "Username:":
rtn = []byte(a.username)
case "Password:":
rtn = []byte(a.password)
default:
rtn = nil
rtnErr = errors.New("Unknown from server")
}
}
return rtn, rtnErr
}
//Office365Sender Office365Sender
type Office365Sender struct {
User string
Password string
MailHost string
Port string
}
//SendMail SendMail
func (m *Office365Sender) SendMail(mailer *Mailer) bool {
var rtn bool
if mailer.Recipients != nil && len(mailer.Recipients) > 0 {
var hostPort = m.MailHost + ":" + m.Port
conn, oerr := net.Dial("tcp", hostPort)
if oerr == nil {
client, cerr := smtp.NewClient(conn, m.MailHost)
if cerr == nil {
//log.Println(client)
var tlsCfg tls.Config
tlsCfg.ServerName = m.MailHost
sterr := client.StartTLS(&tlsCfg)
if sterr == nil {
//auth := smtp.Auth()
auth := Auth365(m.User, m.Password) //(m.User, m.Password)
aerr := client.Auth(auth)
if aerr == nil {
var recips = "To: "
for r := range mailer.Recipients {
recips += mailer.Recipients[r]
if r < len(mailer.Recipients)-1 {
recips += ";"
}
}
recips += "\r\n"
var msg = []byte(
"From: " + mailer.SenderAddress + "\r\n" +
recips +
"Subject: " + mailer.Subject + "\r\n" +
"\r\n" +
mailer.Body + "\r\n")
//fmt.Println("mailer: ", *mailer)
err := smtp.SendMail(m.MailHost+":"+m.Port, auth, mailer.SenderAddress, mailer.Recipients, msg)
if err == nil {
rtn = true
} else {
log.Println("Mail send error: ", err)
}
} else {
log.Println("client Auth Error: ", aerr)
}
} else {
log.Println("client StartTLS Error: ", sterr)
}
} else {
log.Println("client Error: ", cerr)
}
} else {
log.Println("Dial Error: ", oerr)
}
}
return rtn
}
//GetNew GetNew
func (m *Office365Sender) GetNew() Sender {
var s Sender
s = m
return s
}