[Mediawiki-l] MimeMagic detects image/png as text/plain

[Sebastian Raible]

Dear list,


a quick search through the list archives didn't bring up a result so
please excuse me if this issue has been solved already.

I am currently using Mediawiki 1.9.2. and experienced problems uploading
PNG images.

Although my test image shows an 'image/png'-mimetype with 'file -i',
Mediawiki keeps saying the file was corrupted.

Monitoring /tmp/php* while uploading the image again shows the uploaded
file to be image/png, too:
	while(usleep 1); do file -i /tmp/php*|grep -v "ERROR"; done
	/tmp/phpksjpPO: image/png

Mediawiki debug says
	MimeMagic::detectMimeType: magic mime type of /tmp/phpcDoKKE:
	text/plain
amongst other things, so I guess MimeMagic isn't working correctly..
Searching the meta wiki gives me the hint to add
	$wgMimeDetectorCommand  = "/usr/bin/file -bi";
to LocalSettings.php as a workaround, which actually does the trick.

But still I wonder: What's the problem with MimeMagic?


Thanks,
Sebastian
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