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[[!meta robots="noindex, follow"]]
[[!if test="enabled(attachment)"
then="This wiki has attachments enabled."
else="This wiki has attachments disabled."]]
If attachments are enabled, the wiki admin can control what types of
attachments will be accepted, via the allowed_attachments
configuration setting.
For example, to limit arbitrary files to 50 kilobytes, but allow
larger mp3 files to be uploaded by joey into a specific directory, and
check all attachments for virii, something like this could be used:
virusfree() and ((user(joey) and podcast/*.mp3 and mimetype(audio/mpeg) and maxsize(15mb)) or (!ispage() and maxsize(50kb)))
The regular [[ikiwiki/PageSpec]] syntax is expanded with the following
additional tests:
-
"maxsize(size)" - Tests whether the attachment is no larger than the
specified size. The size defaults to being in bytes, but "kb", "mb", "gb"
etc can be used to specify the units.
-
"minsize(size)" - Tests whether the attachment is no smaller than the
specified size.
-
"ispage()" - Tests whether the attachment will be treated by ikiwiki as a
wiki page. (Ie, if it has an extension of ".mdwn", or of any other enabled
page format).
So, if you don't want to allow wiki pages to be uploaded as attachments,
use !ispage() ; if you only want to allow wiki pages to be uploaded
as attachments, use ispage().
-
"mimetype(foo/bar)" - This checks the MIME type of the attachment. You can
include a glob in the type, for example mimetype(image/*).
-
"virusfree()" - Checks the attachment with an antiviral program.
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