Tickets :: Comment on [#11930] Horde_String::validUtf8 fails to validate valid UTF8

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Comment	>> From what i have seen if this function returns false the code >> strips all non 7 bit characters >> This works in english but strips the whole text in other >> languages.Maybe a less heavy handed approach is possible striping >> only offending characters and replacing with equal byte symbols by >> calling this logic . > > This is only true for ActiveSync. In ActiveSync, the stripping of non > 7 bit characters is a last ditch effort when we can't determine what > the encoding is. If we don't know what encoding the text is in, how > are we to know what equal byte symbols are? > > The reason we have to strip the non 7 bit characters is because if we > send invalid UTF-8 data over wbxml, it can completely break the sync > and even crash clients like iOS. Again, we only due this as a last > ditch effort when the incoming email contains inproper character > encoding information.
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