smsutil - encode, decode and split SMS

Simple set of utility functions for encoding, decoding and splitting sms messages. Shift tables is currently not supported.

Features

• Codecs for encoding and decoding GSM 03.38
• Message splitting for both UCS2/UTF-16 and GSM 03.38

Installation

To install smsutil:

$ pip install smsutil

Basic Usage

Example for encoding and decoding:

import smsutil

smsutil.is_valid_gsm('nobita and doraemon')  # True
smsutil.is_valid_gsm('🍔')  # False

gsm = smsutil.encode('the quick brown fox jumps over the lazy dog {@}')
# b'the quick brown fox jumps over the lazy dog \x1b(\x00\x1b)'
smsutil.decode(gsm)  # encoding='gsm0338'
# 'the quick brown fox jumps over the lazy dog {@}'

utf16 = smsutil.encode('最高でした 🍔')
# b'g\x00\x9a\xd80g0W0_\x00 \xd8<\xdfT'
smsutil.decode(utf16, encoding='utf_16_be')  # should specify encoding
# '最高でした 🍔'

sms = smsutil.split('[the quick brown fox]')
len(sms.parts)  # 1
sms.encoding  # 'gsm0338'
sms.parts[0].content  # '[the quick brown fox]'
sms.parts[0].length  # 21
sms.parts[0].bytes  # 23

sms = smsutil.split('最高でした 🍔')
len(sms.parts) # 1
sms.encoding  # 'utf_16_be'
sms.parts[0].content  # '最高でした 🍔'
sms.parts[0].length  # 7
sms.parts[0].bytes  # 16

smsutil is just using python's builtin codecs for UCS2/UTF-16.

Contributing

1. Fork repository.
2. Create a pull request.
3. ✨🍰✨