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move attachment pagespec extensions docs to its own page 

in the basewiki, so I can link to it there
master
Joey Hess 2008-07-02 18:04:14 -04:00
parent c150590e27
commit 2888b03556
2 changed files with 57 additions and 47 deletions
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doc/ikiwiki/pagespec/attachment.mdwn 100644
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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, by entering a [[ikiwiki/PageSpec]] in the
"Allowed Attachments" field of their preferences page.
For example, to limit arbitrary files to 50 kilobytes, but allow
larger mp3 files to be uploaded by joey, a something like this could be
used:
(user(joey) and *.mp3 and mimetype(audio/mpeg) and maxsize(15mb)) or (!ispage() and maxsize(50kb))
The regular [[ikiwiki/PageSpec]] syntax is expanded with thw 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()`.
* user(username)
Tests whether the attachment is being uploaded by a user with the
specified username. If openid is enabled, an openid can also be put here.
* ip(address)
Tests whether the attacment is being uploaded from the specified IP
address.
* mimetype(foo/bar)
This checks the MIME type of the attachment. You can include a glob
in the type, for example `mimetype(image/*)`.

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doc/plugins/attachment.mdwn
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@ -20,51 +20,9 @@ Bear in mind that if you let anyone upload a particular kind of file
contains html as a web page; including running any malicious javascript
embedded in that page.
To provide a way to combat these abuses, the wiki admin can specify a
[[ikiwiki/PageSpec]] on their preferences page, to control what types of
attachments can be uploaded, and by whom. The regular [[ikiwiki/PageSpec]]
syntax is expanded with additional tests.
If you enable this plugin, be sure to lock that down, by entering a
[[special_PageSpec|ikiwiki/pagespec/attachment]] in the "Allowed
Attachments" field of the wiki admin's preferences page.
For example, to limit arbitrary files to 50 kilobytes, but allow
larger mp3 files to be uploaded by joey, a test like this could be
used:
(user(joey) and *.mp3 and mimetype(audio/mpeg) and maxsize(15mb)) or (!ispage() and maxsize(50kb))
The following additional tests are available:
* 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()`.
* user(username)
Tests whether the attachment is being uploaded by a user with the
specified username. If openid is enabled, an openid can also be put here.
* ip(address)
Tests whether the attacment is being uploaded from the specified IP
address.
* mimetype(foo/bar)
If the [[cpan File::MimeInfo::Magic]] perl module is installed, this
allows checking the mime type of the attachment. You can include a glob
in the type, for example `mimetype(image/*)`.
This plugin will use the [[cpan File::MimeInfo::Magic]] perl module, if
available, for mimetype checking.