+(I've written a [[proposal|todo/fileupload/soc-proposal]] for this feature --Ben).
+
Support for uploading files is useful for many circumstances:
* Uploading images.
browsers are probably too smart for their own good and may ignore the
extension / mime info and process as the actual detected file type. It
may be necessary to use `file` to determine a file's true type.
+* Optional ability to test a file using a virus scanner like clamav.
* Limits to who can upload what type of files.
* Limits to what files can be uploaded where.
( user(joey) and maxsize(1mb) and (type(webimage) or *.mp3) ) or
( user(joey) and maxsize(200mb) and (*.mov or *.avi) and videos/*)
-[[tag soc]]
+With a small extension, this could even be used to limit the max sizes of
+normal wiki pages, which could be useful if someone was abusing an open wiki
+as a wikifs. Maybe.
+
+ ( type(page) and maxsize(32k) )
+
+And if that's done, it can also be used to lock users from editing a pages
+or the whole wiki:
+
+ !(( user(spammer) and * ) or
+ ( user(42.12.*) and * ) or
+ ( user(http://evilopenidserver/*) and * ) or
+ ( user(annoying) and index) or
+ ( immutable_page ))
+
+That would obsolete the current simple admin prefs for banned users and
+locked pages. Suddenly all the access controls live in one place.
+Wonderbar!
+
+(Note that pagespec_match will now return an object that stringifies to a
+message indicating why the pagespec matched, or failed to match, so if a
+pagespec lock like the above prevents an edit or upload from happening,
+ikiwiki could display a reasonable message to the user, indicating what
+they've done wrong.)
+
+[[!tag soc done]]