[horde] Fatal error has occurred count(): Argument #1 ($value) must be of type Countable

[Ralf Lang]

Hi Simon,

the immediate fix is in
https://github.com/horde/Text_Filter/releases/tag/v3.0.0RC1
 e5aafe6abce4d1edf0fb1a9a7a213d3336589490

Can you forward to me an email which triggers this issue with the
Dimsignature filter?

On Tue, May 12, 2026 at 4:57 PM Simon B <simon.buongiorno at gmail.com> wrote:

> Hi Ralf, et al..
>
> with increasing frequency, I am getting this error:
>
> A fatal error has occurred
> count(): Argument #1 ($value) must be of type Countable|array, bool given
> in
>
> /usr/share/2024-composer-horde6/vendor/horde/text_filter/lib/Horde/Text/Filter/Dimsignature.php:30
>
>  1. IMP_Dynamic_Base->__construct()
> /usr/share/2024-composer-horde6/vendor/horde/imp/dynamic.php:32
>  2. IMP_Dynamic_Message->_init()
> /usr/share/2024-composer-horde6/vendor/horde/imp/lib/Dynamic/Base.php:87
>  3. IMP_Contents_Message->showMessage()
> /usr/share/2024-composer-horde6/vendor/horde/imp/lib/Dynamic/Message.php:66
>  4. IMP_Contents_Message->getInlineOutput()
>
> /usr/share/2024-composer-horde6/vendor/horde/imp/lib/Contents/Message.php:175
>  5. IMP_Contents_Message->_getInlineOutput()
>
> /usr/share/2024-composer-horde6/vendor/horde/imp/lib/Contents/Message.php:335
>  6. IMP_Contents->renderMIMEPart()
>
> /usr/share/2024-composer-horde6/vendor/horde/imp/lib/Contents/Message.php:594
>  7. Horde_Mime_Viewer_Base->render()
> /usr/share/2024-composer-horde6/vendor/horde/imp/lib/Contents.php:660
>  8. IMP_Mime_Viewer_Plain->_renderInline()
>
> /usr/share/2024-composer-horde6/vendor/horde/mime_viewer/lib/Horde/Mime/Viewer/Base.php:156
>  9. IMP_Mime_Viewer_Plain->_impRender()
>
> /usr/share/2024-composer-horde6/vendor/horde/imp/lib/Mime/Viewer/Plain.php:49
> 10. Horde_Mime_Viewer_Base->_textFilter()
>
> /usr/share/2024-composer-horde6/vendor/horde/imp/lib/Mime/Viewer/Plain.php:159
> 11. Horde_Core_Factory_TextFilter->filter()
>
> /usr/share/2024-composer-horde6/vendor/horde/mime_viewer/lib/Horde/Mime/Viewer/Base.php:438
> 12. Horde_Text_Filter::filter()
>
> /usr/share/2024-composer-horde6/vendor/horde/core/lib/Horde/Core/Factory/TextFilter.php:70
> 13. Horde_Text_Filter_Dimsignature->postProcess()
>
> /usr/share/2024-composer-horde6/vendor/horde/text_filter/lib/Horde/Text/Filter.php:108
>
> Although I have not actually updated any code in this file path for more
> than one year..
>
> (and I am a little reluctant to upgrade/refresh since I do not have the
> time for trouble-shooting at the moment.)
>
> Is there a simple fix?
>
> Regards
>
> Simon
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