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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.