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I found a reliable trigger for the 'Internal Server Error'! 
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Joined: Thu Mar 17, 2011 12:16 am
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Location: Wimbledon, UK
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I was trying to post my pictures (such as they were) in the 'Fan art' thread, when the forum crashed in the middle of uploading them. Such is life, I thought, and tried again. And it crashed again.

I've now tried several times, and this particular picture never fails to cause a 500 when I click 'Add the file', no matter which post it's attached to. (I even tried doing it beneath this one, with exactly the same result.)

For obvious reasons, I can't provide the evidence here... :roll:

The (successfully uploaded) attachment in the following post is binarily identical:

http://beanoforum.freeforums.org/post656.html#p656

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Fri May 06, 2011 5:01 pm
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Sir!
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Joined: Thu Feb 23, 2006 4:14 am
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Location: Suffolk
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Swirly,

I copied your image from the Beano Forum (right click > save as).

Then, in the Upload Attachment section I browsed to where I stored the image on my computer. I didn't resize it (37KB). I then did as you did and pressed the Add the file button and it worked.

I used the new Firefox 4 browser (not that that should have any bearing). I also managed to attach it to a post in the fan Art thread (but have removed it).

Would you like me place the image back in the Fan Art section?

Al


Attachments:
File comment: SwirlyThingy Graphic
Swirly.gif
Swirly.gif [ 35.82 KiB | Viewed 3356 times ]
Fri May 06, 2011 8:39 pm
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Well, I don't know what the new Firefox browser did, but it was supposed to be a PNG, not a GIF! That's almost certainly why it worked.

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Fri May 06, 2011 8:59 pm
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Sir!
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Whoops! I was amending my post as you were replying to the original.

You're right though and GIF over PNG.

I converted it to a PNG(8) and it uploaded fine. When I converted it to PNG(24) I received the 500 error.

I guess we'll just have to hope that the PHPBB boys will sort it out on the next release. I think I'll pop along to their website to see it I can log this as a problem.

Al


Attachments:
Swirly.png
Swirly.png [ 34.79 KiB | Viewed 3351 times ]
Fri May 06, 2011 9:02 pm
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Location: Wimbledon, UK
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I've just successfully reproduced it again.

It's most definitely something to do with the exact byte sequence of the file. Firefox appears to be trying to be too clever, and destroying the original information. My file is 44,618 bytes long - yours is about 10,000 shorter, so it's obviously been recompressed, destroying whatever chance idiosyncrasy of the internal data caused the crash in the first place.

Yep - I've definitely proved that having the exact original data is very important, because I just zipped it and successfully attached it to this post. Try extracting the file from this archive and then uploading it.

EDIT: Argh! This is getting too confusing! Why must more than one person be allowed to log in at once? What was wrong with BBSes, eh? :headbash:


Attachments:
ivy.zip [40.14 KiB]
Downloaded 247 times

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Fri May 06, 2011 9:08 pm
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Yep! That file failed quite nicely.

500 Internal Server Error

Al


Fri May 06, 2011 9:50 pm
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Joined: Wed Aug 15, 2007 11:43 am
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Location: Hull, UK
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swirlythingy wrote:
EDIT: Argh! This is getting too confusing! Why must more than one person be allowed to log in at once? What was wrong with BBSes, eh? :headbash:
BBSes? lol, they're still very commonplace in Japan, for some reason...


Fri May 06, 2011 10:48 pm
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