Signature Image System

Signature Image Management System (file based)

Updated: 27 June 2002, 12:22 AM BST

This hack allows users to upload a image or images that they can then use as part of the thier signature. All uploaded images are private to the user that uploaded them.

The hack requires that you have PHP 4.1.0 or newer for the upload functions to work correctly. PHP 4.0.6 can be used with modifications (not recommended).

The scripts can if enabled also prevent users from externally linking to the images they uploaded, please note this is done by HTTP_REFERER checking not all http servers or browsers support this however is more widely supported than Apache's mod_rewrite. Should you wish to stop deep linking then upload a image called badcontent.gif to your forums directory.

Further more instructions are provided in how to get this hack to work if you are using vBulletin's standard sig editor or a advanced sig editor hack.

Version 2.0 Updates
- remote storage support
- sig.php nolonger appears in online.php
- special [sig] vB code is used instead of [img] tags

Version 1.3 Updates
- fixed display bug
- added removal script to main package
- added test template set


Version 1.11 Updates
- Image width & height checking
- Extension checking
- More useful error messages
- Added a missing function

Current Version 1.3
Released 20th sept 2001

Requirements:
- vBulletin 2.0.3
- PHP 4.0.3+ (this hack has not been tested on PHP 3.0.17, it may or may not work)

Optional:
- HTTP Server that supports HTTP_REFERER, (Apache 1.2+, IIS 4+)
- badcontent.gif in your forum directory


Screenshots can be found in the zip file.

[snyx]

im using the advanced editor.
so I changed the old code to the new stuff
still same problem?

[dabean]

You've tried setting image serving to "yes"?
You've tried directly requesting the images eg http://<yourforums>/sig.php?imageid=X ?

and most importantly your using the updated version of sig.php?

If the images are appearing in your ftp then it means the script is correctly uploading the images at least.

[snyx]

still nothing man?
whats wrong
sorry to harass ya, I usally can fix these things, but this time im stumped.

[dabean]

Bizare, okay this should help you discover where the problem lies. Attached is debug version of the image display script (sig.php)

Upload it then directly try and access a image via it
http://<yourforums>/sig.php?debug=true&imageid=<imageidnumber>

As it completes each part of the logic the script will echo its progress helping you discover where it failed.

[snyx]

genious, here is what it told me

Image serving is enabled, referer check has not been carried out.
Displaying Image. filename is: images/signature/uid55iid6.gif
Warning: Cannot add header information - headers already sent by (output started at /home/kaos/public_html/forums/sig.php:58) in /home/kaos/public_html/forums/sig.php on line 68

Warning: Cannot add header information - headers already sent by (output started at /home/kaos/public_html/forums/sig.php:58) in /home/kaos/public_html/forums/sig.php on line 69

Warning: Cannot add header

Ideas?

[dabean]

The add headers problem is because its in debug mode,

however images/signature/uid55iid6.gif may indicate the real problem you need to specify the full path eg /home/whereever

[snyx]

damn!
in my Options, I changed the Base Directory to my whole path,
/home/kaos/public_html/forums/images/signature
still won't show up?

hummm.

[dabean]

okay at the bottom of the error messages you should see

"Image Exists. Image has been loaded, if you where not in debug mode it would be downloading now"

or "Image could not be opened. Filename is: $sigimagedir/$filename"

or "Image does not Exist. Filename and path should be: $sigimagedir/$filename"

if you don't then what version of php are you using?

[snyx]

im using 4.0.4pl1 and where would these messages be?
(sorry for the hassle man, just I really like this hack)

[dabean]

Warning: Cannot add header information - headers already sent by (output started at /www/forums/sig.php:36) in /www/forums/sig.php on line 78

Image Exists. filename is: /home/memberdata/uid419iid2.gif
Image Exists. Image has been loaded, if you where not in debug mode it would be downloading now

You should find something similar at the bottom of the debug page.