[stable16] Fix push notifications for multibyte notifications #586
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json_encode is messing with multibyte characters a lot, replacing them with something along "\u1234" instead of the assumed 2-times overhead. The data length in our encryption is a hard limit, but we don't want to make non-utf8 subjects unnecessary short. So this function tries to cut it off first. If that is not enough it always cuts off 5 characters in multibyte-safe fashion until the json_encode-d string is shorter then the given limit. Signed-off-by: Joas Schilling <coding@schilljs.com>
rullzer
approved these changes
Mar 7, 2020
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Backport of #575