Re: python-gammu - how do I encode/decode an SMS which contains emoji?

Michal Čihař <[email protected]> Fri, 10 Feb 2017 14:44:40 +0100

Newsgroups	gmane.linux.drivers.gammu
Message-ID	<[email protected]>

Hi

[email protected] píše v Čt 09. 02. 2017 v 00:08 +0000:
> Hi,
> 
> I'm unable to successfully encode/decode an SMS containing emoji.
> 
> Using Python 3 and the Python-Gammu library, I encode a PDU for
> message 
> text containing an emoji character 😂  (Unicode character U+1F602 - 
> "FACE WITH TEARS OF JOY"):
> 
> The PDU returned is
> "07918188558588f811000b912121551532f40018ff02f602".
> 
> When I then decode this PDU using the Python-Gammu library, the
> message 
> text contains an unrecognised character  (\xEF\x98\x82), rather
> than 
> the Unicode emoji character.
> 
> *** I get the same result using Wammu's own encoder and decoder tools
> at 
> https://wammu.eu/tools/pdu-encode/  and 
> https://wammu.eu/tools/pdu-decode/ . ***
> 
> I wonder whether this is something to do with the gammu library
> working 
> strictly to the GSM specification and interpreting the UDH payload
> as 
> UCS-2 encoded rather than as UTF-16. Nevertheless, emoji are now in 
> common use within SMS messages, and I need to find a way of
> converting 
> gammu's literal decoding back to the original emoji as entered by
> the 
> sending party.
> 
> Would anyone please be able to guide me on how to achieve this?

This can be achieved by fixing bug in python-gammu :-). See our issue
tracker:

https://github.com/gammu/python-gammu/issues/16

-- 
	Michal Čihař | https://cihar.com/ | https://weblate.org/

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