SMPPY

Simple tool for building SMPP servers

How to install

pip install smppy

How to build a SMPP server app with `smppy`

Creating a SMPP server app with smppy is simple as inheriting from smppy.Application and implementing a few methods. Below is the example app you can find in scripts/example_server file.

from smppy import Application, SmppClient
from typing import List, Union


class MySmppApp(Application):
    def __init__(self, name: str, logger):
        self.clients: List[SmppClient] = []
        super(MySmppApp, self).__init__(name=name, logger=logger)

    async def handle_bound_client(self, client: SmppClient) -> Union[SmppClient, None]:
        self.clients.append(client)
        self.logger.debug(f'Client {client.system_id} connected.')
        return client

    async def handle_unbound_client(self, client: SmppClient):
        self.clients.remove(client)

    async def handle_sms_received(self, client: SmppClient, source_number: str,
                                  dest_number: str, text: str):
        self.logger.debug(f'Received {text} from {source_number}')
        await client.send_sms(source=dest_number, dest=source_number,
                              text=f'You have sent {text} to me...')

Run

1. Run the server app

Source code: example_server.py

In a terminal tab run:

python -m scripts.example_server

2. Run the test client

smppy has also a SMPP client which can be manipulated through a command line:

Source code: test_client.py:

In a second terminal tab run:

python -m scripts.test_client

A SMPP client connects to the server and a Python shell opens.

Available functions:

send_message(message: str, sender: str, receiver: str)

3. Watch logs

In a third terminal tab run:

tail -f client.log

to view all client events.

Contributing

Feel free to open issues and pull requests.

devtud/smppy