Attachment corruption - zip files

[knucklenitz]

Hi - I have 3.8.6PL1 with attachments being stored in the database.

When ZIP files are uploaded, they upload fine but when a user attempts to download the file, it shows as a corrupt or incomplete file (whether opened or saved and then opened). I saw a posting regarding disabling of gzip but this didn't help.

Any help appreciated.

[Zachery]

You're currently showing up as unlicensed, please fix this in the members area

[knucklenitz]

Issue resolved. I had changed emails on forum and not on license. Thanks for the heads up.

Would you have any ideas on this zip issue?

[Zachery]

Does it happen in all browsers or just one or tow?

[knucklenitz]

It's happening in IE8 for sure. I haven't tested others but will soon. I can try Firefox. Do you suggest others to try?

[Zachery]

Finding out if its just a specific browser or all browsers is a good step, it can give us an idea of whats going on.
Does it happen to all zips attachments, just old zip attachments, or just new zip attachments?

[knucklenitz]

It happens on old zips and recently added.

[Trevor Hannant]

Did you find out if it was all browsers?

[knucklenitz]

I tried Firefox and that appears to work ok.

I don't run any toolbars or other added junk in IE 8 but I'm sure there's something causing this. Any idea?

Thanks!

[knucklenitz]

Checking to see if anyone has any ideas...

[Zachery]

AdminCP > vBulletin Options > vBulletin Options > Cookies & HTTP Headers
is gzip enabled?

[knucklenitz]

It was enabled but during initial research, I disabled it without positive result. Same issue with it enabled or disabled.

[GoHighVoltage]

Just saw you are having the same problem, Here is my situations:

I have Vbulletin 4.1.2



In the forum, when I have a .zip file attached to a post, everything is fine. If I download the file from the post when using firefox, everything works perfect and winzip opens it fine.

IF I try and download the same .zip file from the same post using internet explorer, winzip will not open the file. IT throws an error that says: Cannot open file: It does not appear to be a valide archive.

What the heck? I tried this using different verified zip files and all the same results.
My Server has Gzip enabled, and GZIP is turned OFF in Vbulletin.

This is a problem only in IE8, firefox, IE7, chrome all work fine.

[GoHighVoltage]

With mod_deflate on my server turned on,(IE8 will not work) If I disable mod_deflate, Yes it will work.

There is no double compressions. So I do not know what you mean, how do I fix this? Also, GZIP and mod_deflate are the same?

-------------------

I do not have double compression at all. So with mod_deflate enabled, IE8 will not download .zip files.

Help?


As a temporary work around:
For now, in my forum directory (which is in its own folder) I put "SetOutputFilter INFLATE" in the forum htaccess file.


This has to be some kind of glitch or error.

There is no problem with firefox, IE7, Chrome, Opera, etc. Only IE8

[Zachery]

Disable mod_deflate.