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Image Cache
Version: 1.0.3.0, by y2ksw y2ksw is offline
Developer Last Online: Feb 2023 Show Printable Version Email this Page

Version: 3.5.4 Rating:
Released: 08-06-2006 Last Update: 08-20-2007 Installs: 77
DB Changes Uses Plugins
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No support by the author.

Y2K Software Image Cache

Compatible at least with vBulletin 3.5.4 and 3.6.4

Please click here for the product Import External Images for vBulletin 4

This product caches images from external sites to a local board folder (including signatures) located at:

http://www.domain.tld/[forum/]imgcache

Installation
  1. Please create at your vBulletin board directory a folder called: imgcache and give it the following access rights: CHMOD 777 (read/write/modify to all users)
  2. Create an empty index.html file in this folder to avoid file exploring and direct download on some systems.
  3. Copy the y2kswimgcache.php file to your vBulletin board (forum home) directory.
  4. Close your forum temporarily to the public.
  5. Install the product product-y2kswimagecache.xml to your board (allow overwrite if already present).
    The installer will add a table called '[prefix]y2ksw_imgcache' with one field (int ID AUTOINCREMENT) to your board database.
    Please note: Although the uninstaller is provided, it is commented out. By removing the table, and reinstalling the plugin later, the cached images would be overwritten, because of the field counter restarting from 1.
    By leaving the table in your database, you may reinstall the plugin later without collision problems.
  6. Test the product: New thread, reply, edit. If errors occur (or white pages), make sure your imgcache/ folder has the required access rights.
  7. Reopen your forum to the public.
  8. DONE!
How it works

When a board user opens a new thread or message, or edits an existing one (all advanced, quick-reply and ajax), and pastes an image from all but the local cache directory (or by copy and paste, or by specifying [IMG] tags), upon submission the image is read from the external url and written to the local (server) image cache folder.
This avoids to show a placeholder image when the source link is dead or temporarily unavailable.

The link to the image is accordingly replaced.

The script scans first all image references and creates a table of unique images in the current message. It creates a new database table entry in y2ksw_imgcache for each image, reads the new ID and creates a sequence of new images for each url it happens to be readable, and creates for each successful read an imgcache/<id>.png file.

After this sequence, the files are cached locally and may disappear from their sources without leaving an unreferenced image pointer at the local board.

Known bugs

When an image link contains dynamic data, vBulletin would show the image in preview, but change also the IMG tags to URL.
This causes to loose the reference and the plugin will not attempt to recover. A possible solution is to allow dynamic contents for IMG tags on your board.

Version history

1.0.3.0 2007-08-19 Repaired browser (IE 7) issue for images of a different file extension than the officially recognized types. For this issue, newly cached files have now the *.png extension.
1.0.2.0 2006-08-27 Image caching of signatures ([IMG] tags for signatures must be enabled); added a donation button inside readme.htm for specific user requests, which will help us to keep this product always up-to-date.
1.0.1.2 2006-08-07 Release changes for vbulletin.org
1.0.1.1 2006-08-06 Image size verification to avoid caching of invalid images
1.0.1.0 2006-07-17 Collision-free unique cache ID's
1.0.0.0 2006-07-17 Product creation

Supporters / CoAuthors

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  • This modification may not be copied, reproduced or published elsewhere without author's permission.
2 благодарности(ей) от:
dartho, xorex

Comments
  #32  
Old 10-27-2006, 10:18 PM
JohnBee JohnBee is offline
 
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Quote:
Originally Posted by y2ksw
Basically it is possible to change the script to save the cached images with another name. Still there is a basic problem I didn't solve: The cache takes any image format and saves it as-is from the source site.
It is a great hack I will give it this.
If you could arrange for it to maintain standard image format filenames it would really help integrate it with other image functions within vBulletin. I will uninstall it for the time being, only because my members are confused about this. But I do hope you can change this because this is a very useful and helpful approach to an age old problem.
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  #33  
Old 10-29-2006, 08:27 AM
maaref maaref is offline
 
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Great mod you made y2ksw
I like it.

some admins have a limited space to store images in their site, I have some suggestions for future update (if possible)...

add options in ACP to enable/diable:
- signature storage
- storage based on usergroups, users names... this will be excellent for proffesional forums/images describe process by certain members.
- store images in different server/site...because of space limitation. the new location could be owned by same admin.

genius mod, thanks again.
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  #34  
Old 10-29-2006, 03:53 PM
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y2ksw y2ksw is offline
 
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Quote:
Originally Posted by maaref
Great mod you made y2ksw
I like it.

some admins have a limited space to store images in their site, I have some suggestions for future update (if possible)...

add options in ACP to enable/diable:
- signature storage
- storage based on usergroups, users names... this will be excellent for proffesional forums/images describe process by certain members.
- store images in different server/site...because of space limitation. the new location could be owned by same admin.

genius mod, thanks again.
The storage based on forums and/or usergroups has been requested already, but I'm in a sort of stall right now (too many jobs) and cannot concentrate much on adding features.

Storing mages on another server may create many authentication problems, and in the end, if that server is down, the problem of unlinked images reappears again, reason for which this plugin has actually been created
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  #35  
Old 10-30-2006, 07:32 AM
maaref maaref is offline
 
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Thank for the effoer,
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  #36  
Old 12-05-2006, 08:25 AM
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Zia Zia is offline
 
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sounds a nice mod...
caching external image..
vb3.6.4 has been released....
its supported by vb 3.6.4 ?
any new feature is coming or any update ?
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  #37  
Old 12-27-2006, 12:40 PM
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y2ksw y2ksw is offline
 
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Sure, it's fully compatible with vBulletin 3.6.4
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  #38  
Old 01-31-2007, 04:53 PM
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adhari_com adhari_com is offline
 
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then shouldn't it be moved into 3.6.4?
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  #39  
Old 01-31-2007, 07:18 PM
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y2ksw y2ksw is offline
 
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Quote:
Originally Posted by adhari_com View Post
then shouldn't it be moved into 3.6.4?
Yeah, maybe

Still, there are many users of v. 3.5 which can't upgrade because of their server/PHP/MySQL limitations, and this forum is much less crowded than anywhere else.

Let's say, when I assume v. 3.5 is definitively dead, I will ask to move the thread to the 3.6 forums
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  #40  
Old 02-19-2007, 07:58 PM
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KingPin6 KingPin6 is offline
 
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thank you for an awesome mod, is there anywhere I can specify to ignore sig images? or even better, images from the forums domain? we have a default sig for each user that needs to stay updated with stats from game server, stats are based from same domain. being able to turn off cache for same domain would be awesome, thank you.
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  #41  
Old 02-19-2007, 10:16 PM
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y2ksw y2ksw is offline
 
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You may disable the specific plugin for signatures. When diabled, signatures are not considered
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