** Changed in: airdcpp
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1649066
Title:
Invalid UTF-8 data is not always being rejected
Status in AirDC++:
Fix Released
Status in DC++:
New
Bug description:
There are various cases where invalid UTF-8 data is being consumed by
the core:
1. Text::convert will return the original string in case of errors (Linux
only, respective Windows-specific functions will return an empty string in case
of errors)
2. When using "utf-8" encoding in NMDC hubs, the original string will always
be returned by conversion functions without validation (generally Linux only
since "utf-8" can't be selected from DC++'s GUI)
3. UTF-8 validation is not performed for strings parsed from XML
(specifically file/directory names in filelists)
This will cause issues especially when the data is processed by
external sources/libraries that expect to receive valid UTF-8 data
(https://github.com/airdcpp-web/airdcpp-webclient/issues/204). I'm not
sure about security implications.
Another note: messages that fail UTF-8 validation in ADC hubs are
ignored silently. At least Flexhub seems to be having problems with
data validation which currently goes unnoticed.
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