https://bugs.kde.org/show_bug.cgi?id=448112
Bug ID: 448112
Summary: Parsing broken subjects and other possibly
UTF-8-encoded headers
Product: kmail2
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kdepim-b...@kde.org
Reporter: m...@ratijas.tk
Target Milestone: ---
SUMMARY
Sometimes I'm getting automated emails from systems that could not properly
encode multi-line UTF-8 subjects.
For example:
> Кассовый чек 500 ₽ от «ПАО "ТАТ��ЕЛЕКОМ"»
In the source view of that email it was represented in one line as this:
> From: "OFD.RU" <nore...@ofd.ru>
> Subject:
> =?UTF-8?B?0JrQsNGB0YHQvtCy0YvQuSDRh9C10LogNTAw?==?UTF-8?B?IOKCvSDQvtGCIMKr0J/QkNCeICLQotCQ0KLQ?==?UTF-8?B?otCV0JvQldCa0J7QnCLCuw==?=
The are two problems, as far as I can tell:
1. It was supposed to be split in multiple lines, after each closing ?=
sequence
2. Unicode code-points should not be split across multiple =?UTF-8?B?...?=
chunks.
But maybe we could make our lives easier by trying to recover broken subjects?
At least, we are already doing a good job of recovering from unspecified
encoding, such as in this follow-up email I got from my internet provider:
> From: <p...@ais.tattelecom.ru>
> Subject: ÐвиÑанÑÐ¸Ñ Ð¿Ð¾ оплаÑе ÑÑлÑг ÑвÑзи ÐÐÐ
> «ТаÑÑелеком»
…which KMail tried hard to «correctly» recover as
> Квитанция по оплате услуг связи ПАО «Таттелеком»
STEPS TO REPRODUCE
1. Get an email from OFD.RU
OBSERVED RESULT
Unicode symbols shred into pieces, as in
> "ТАТ��ЕЛЕКОМ"
EXPECTED RESULT
> "ТАТТЕЛЕКОМ"
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.23.80
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
Kernel Version: 5.15.12-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-6700HQ CPU @ 2.60GHz
Memory: 15.6 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 970M/PCIe/SSE2
ADDITIONAL INFORMATION
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