codemonkeykevin / smpp34

Golang SMPP package

SMPP34

Check examples folder for usage details

Supported/Unsupported PDUs

• bind_transmitter
• bind_transmitter_resp
• bind_receiver
• bind_receiver_resp
• bind_transceiver
• bind_transceiver_resp
• outbind
• unbind
• unbind_resp
• submit_sm
• submit_sm_resp
• submit_sm_multi
• submit_sm_multi_resp
• data_sm
• data_sm_resp
• deliver_sm
• deliver_sm_resp
• query_sm
• query_sm_resp
• cancel_sm
• cancel_sm_resp
• replace_sm
• replace_sm_resp
• enquire_link
• enquire_link_resp
• alert_notification
• generic_nack

License

This repository is Copyright (c) 2013 Kevin Patel. All rights reserved. It is licensed under the MIT license. Please see the LICENSE file for applicable license terms.

Author

Kevin Patel

smpp34's Issues

Transciever doesn't read QUERY_SM_RESP

According to SMPP v3.4 specification a Transciever has to be able to receive QUERY_SM_RESP pdu, but returns SmppPduErr instead

PR: #22

Create random PDU generator for testing

Create random PDU generator for testing for PDU delivery_sm/resp and submit_sm/resp

UDH support for sending large messages

There's no way of sending UDH data for concatenated sms as described in https://en.wikipedia.org/wiki/Concatenated_SMS#Sending_a_concatenated_SMS_using_a_User_Data_Header

There are other ways like using Sar_* tlv fields or message_payload TLV field for sending concatenated sms but they aren't supported by all smpp servers. Only reliable way is to use UDH headers. Any suggestion on how I might be able to send multiple messages as one big message using this library?

Fix all files for golint

This is probably not a simple task is will create backwards incompatible changes due to fixing ALL_CAPS names and so on.

Ref: http://goreportcard.com/report/CodeMonkeyKevin/smpp34

Development Sponsorship

Hello @CodeMonkeyKevin

Interested in getting sponsored development for your SMPP34 GO implementation? please reach out to me at [email protected] to discuss the requirements.

Thank you

Evaluate the use of reflection package

Reflection added upwards of 300ns per per call and should be avoided where possible to keep the lib fast but keeping in mind the ease of use.

Fix reading of pdu date fields with two valid lengths

PDU date fields can be 1 or 17 bytes in length. Currently the parser does not account for length larger then 1 byte in these fields.

Using smpp34 as a server

As mentioned in subj.

It seems that currently smpp34 can connect to external entity, but cannot operate in server mode (creating RX/TX/TRX assumes that we connect and act as a client, not a server), eg:

From transceiver.go (receiver and transmitter example are identical):

func NewTransceiver(host string, port int, eli int, bindParams Params) (*Transceiver, error) {
    trx := &Transceiver{}
    if err := trx.Connect(host, port); err != nil {
        return nil, err
    }

Is there a workaroung/quick fix to be able to listen for incoming connections and use trx/tx/rx methods?

reconnect if the connection dropped

Hello, I am new to SMPP with golang. Can you please show how to reconnect if the connection dropped. Appreciate your feedback.

invalid memory address or nil pointer dereference

I get this exception when trying to run trx_example.go in the examples directory

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x68 pc=0x44d04d]

goroutine 1 [running]:
runtime.panic(0x51e0e0, 0x6a9208)
    /usr/local/go/src/pkg/runtime/panic.c:266 +0xb6
github.com/CodeMonkeyKevin/smpp34.(*Smpp).Write(0xc2100390c0, 0x0, 0x0, 0x4, 0xffffffffffffffff)
    /home/ubuntu/go/src/github.com/CodeMonkeyKevin/smpp34/smpp.go:261 +0x2d
github.com/CodeMonkeyKevin/smpp34.(*Transceiver).Write(0xc2100390c0, 0x0, 0x0, 0x5, 0x541980)
    /home/ubuntu/go/src/github.com/CodeMonkeyKevin/smpp34/transceiver.go:218 +0x42
github.com/CodeMonkeyKevin/smpp34.(*Transceiver).Bind(0xc2100390c0, 0x541980, 0x5, 0x541980, 0x5, ...)
    /home/ubuntu/go/src/github.com/CodeMonkeyKevin/smpp34/transceiver.go:43 +0xa9
github.com/CodeMonkeyKevin/smpp34.NewTransceiver(0x54a810, 0xe, 0xc80, 0x5, 0xc21001e360, ...)
    /home/ubuntu/go/src/github.com/CodeMonkeyKevin/smpp34/transceiver.go:25 +0x1b5
main.main()
    /home/ubuntu/smpp34/examples/trx_example.go:21 +0x224

Handling Optional Parameters

Can you please advise how adding Optional Parameters should be handled?

PDU validation checks.

Added PDU validation checks. Validation should check the PDU fields size, type and length where applicable.

How to change encoding?

can't find how to change encoding of message