[horde] Open a PDF logging me out

[Arjen de Korte]

Citeren Simon B <simon.buongiorno at gmail.com>:

> On Wed, 10 Jul 2019 at 21:15, Arjen de Korte <build+horde at de-korte.org>
> wrote:
>
>> Citeren Simon B <simon.buongiorno at gmail.com>:
>>
>> > On Wed, 10 Jul 2019 at 18:23, Andreas Mauser <andreas at mauser.info>
>> wrote:
>> >
>> >> Hello,
>> >>
>> >> when I want to open a PDF Horde says its corrupt and then logs me out.
>> >>
>> >> Is this known? Do I just need to install another package?
>> >>
>> >>
>> >>
>> > I have a similar issue - but it is in my relatively outdated git-clone,
>> > which I have not been able to update, since the git change was made
>> (yes, I
>> > know, I am not happy, but I do not have time either).
>> >
>> > A fatal error has occurredUndefined class constant
>> 'ALPHACHANNEL_REMOVE'in
>> > ../imp/lib/Mime/Viewer/Pdf.php:136
>> >
>> > 1. Horde_ErrorHandler::catchFatalError()
>> >
>> > DetailsThe full error message is logged in Horde's log file, and is shown
>> > below only to administrators. Non-administrative users will not see error
>> > details.
>> >
>> > ErrorException Object
>> > (
>> >     [message:protected] => Undefined class constant 'ALPHACHANNEL_REMOVE'
>> >     [string:Exception:private] =>
>> >     [code:protected] => 0
>> >     [file:protected] => ../imp/lib/Mime/Viewer/Pdf.php
>> >     [line:protected] => 136
>> >     [trace:Exception:private] => Array
>> >         (
>> >             [0] => Array
>> >                 (
>> >                     [function] => catchFatalError
>> >                     [class] => Horde_ErrorHandler
>> >                     [type] => ::
>> >                     [args] => Array
>> >                         (
>> >                         )
>> >
>> >                 )
>> >
>> >         )
>> >
>> >     [previous:Exception:private] =>
>> >     [severity:protected] => 1
>> >     [logged] => 1
>> >
>> > )
>> >
>> > It is not there in the production version I am using (older than the GIT
>> > version, so something was introduced...)
>>
>> Search the archives for the class constant, as this has been reported
>> (and answered) several times already. It boils down to the fact that
>> the version of the imagick library you're using is *very* outdated.
>>
>>
>>
> Hi Arjen,
>
> A plausible solution, which I have not been able to check, but since the
> production version of Horde is using the same version, I have my doubts.

You didn't search the archives, did you? You would have found that we  
had to change the way PDF files are rendered, because the previous  
(deprecated) method used, is no longer available in newer versions of  
the imagick library.

This change means that if you are using a version of php-imagick that  
is compiled against the older library, it will not longer be able to  
render PDFs with up-to-date Horde installations.

> Nonetheless, thanks for the hint.  It is always appreciated.
>
> Cheers.
>
> Simon