// SendLongSMS sends an SMS message with given text to the given address,
// the encoding and other parameters are default.
// If the message is very long, it will be sent in parts.
func (d *Device) SendLongSMS(text string, address sms.PhoneNumber) (err error) {
defer func() {
multipartReferenceNumber = uint16((uint32(multipartReferenceNumber) + 1) & 0xFFFF)
}()
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),
}
maxSize := 130
for _, w := range text {
// detected a double-width char
if w > 1 {
msg.Encoding = sms.Encodings.UCS2
maxSize = 60
break
}
}
msgParts := util.SplitStringBySize(text, maxSize)
numberOfParts := byte(255)
if len(msgParts) <= 255 {
numberOfParts = byte(len(msgParts))
}
msg.UserDataStartsWithHeader = numberOfParts > 1
for index, part := range msgParts {
msg.MessageReference = messageReferenceCounter
msg.Text = part
if msg.Encoding == sms.Encodings.UCS2 {
}
if numberOfParts > 1 {
msg.UserDataHeader.ConcatenationIE = sms.ConcatenationInformationElement{NumberOfParts: numberOfParts, PartNumber: byte(index + 1), ReferenceNumber: multipartReferenceNumber}
}
messageReferenceCounter = byte((uint16(messageReferenceCounter) + 1) & 0xFF)
if index >= int(numberOfParts) {
break
}
n, octets, err := msg.PDU()
if err != nil {
return err
}
if err = d.Commands.CMGS(n, octets); err != nil {
return err
}
}
return
}
// 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
}