// 发送短信.
// num 接收者的号码.
// msg 需要发送的短信内容.
// return 错误; ==nil 发送正常.
func (g *Gsm) SendSMS(num, msg string) error {
g.mMutex.Lock()
defer g.mMutex.Unlock()
if _, err := g.atcmd("AT", "OK", time.Millisecond*250); nil != err {
return err
}
s := sms.Message{
Encoding: sms.Encodings.Gsm7Bit,
Text: msg,
Address: sms.PhoneNumber(num),
VP: sms.ValidityPeriod(time.Hour * 24 * 4),
VPFormat: sms.ValidityPeriodFormats.Relative,
Type: sms.MessageTypes.Submit,
}
if len(msg) != len([]rune(msg)) {
s.Encoding = sms.Encodings.UCS2
}
n, octets, err := s.PDU()
if err != nil {
return err
}
cmd := fmt.Sprintf("AT+CMGS=%d", n)
if _, err := g.atcmd(cmd, "", time.Millisecond*300); nil != err {
return err
}
buf := make([]byte, hex.EncodedLen(len(octets))+1)
n = hex.Encode(buf, octets)
buf[n] = 0x1A
if _, err := g.mPort.Write(buf); nil != err {
return err
}
_, err = g.atcmd("", "OK", time.Second*10)
return err
}
// SendSMS sends an SMS message with given text to the given address,
// the encoding and other parameters are default.
func (d *Device) SendSMS(text string, address sms.PhoneNumber) (err error) {
msg := sms.Message{
Text: text,
Type: sms.MessageTypes.Submit,
Encoding: sms.Encodings.Gsm7Bit,
Address: address,
VPFormat: sms.ValidityPeriodFormats.Relative,
VP: sms.ValidityPeriod(24 * time.Hour * 4),
}
for _, w := range text {
// detected a double-width char
if w > 1 {
msg.Encoding = sms.Encodings.UCS2
break
}
}
n, octets, err := msg.PDU()
if err != nil {
return err
}
err = d.Commands.CMGS(n, octets)
return
}