Realtime Template Compressor: Reduces page sizes, loads pages faster, saves bandwidth

This is a port of Logican's Realtime Template Compressor hack from vBulletin 2.2.x to vBulletin 3.5.0 Beta 1. I wrote this by rewriting a version of the original hack, that I wrote for my forums when they ran 3.0.x, so that it would function as a plugin for 3.5.0.

I had originally sent this to Logican for him to release it but he replied granting me permission to release it; hence why I'm releasing this.

Installation is very simple. Just import the plugin via vBulletin's "Download / Upload Plugins" page in the Plugin System in the Admin Control Panel and you're done.

I'll try to correct any bugs that you might find. Let me know if you like this plugin and don't forget to click the install link if you install this.

Update History

Version 1.1.0: The expression was replaced with a more efficient one that increases the compression level from approximately 1-2% to approximately 4-8%.
Version 1.0.0: Initial Release

[Submerge]

Originally Posted by exegete

The solution to the paragraph bug is to alter the regular expression in such a way that newline characters appearing between textarea tags are left untouched.

I leave this as an exercise for the reader.

Not all of us are php experts

[Smiry Kin's]

donno if its cos im on 3.5.2

but i get:

XML Error: unknown at Line 0

[Club3G]

Originally Posted by exegete

The solution to the paragraph bug is to alter the regular expression in such a way that newline characters appearing between textarea tags are left untouched.

I leave this as an exercise for the reader

Originally Posted by Submerge

Not all of us are php experts

That's coder-speak for "I don't know how to do it".

Even if the mod is bugged, IMHO it's still worth running on bigger forums if bandwidth is a concern.

[ryuji]

my variation of the script doesnt have the paragraph or javascript bugs, just dont uncomment the code i commented out as breaking stuff

[natralis]

works great for me
cheers

[Output: 42.78 Kb. compressed to 39.45 Kb. by saving 3.33 Kb. (7.77%)]

[Totti]

Originally Posted by ryuji

these are the results of my experiments with the code... this one doesnt break anything and ill see if i can figure out a way to make it not bust javascript

PHP Code:

//Logician Hack:
//$page_byte=strlen($output);

//this broke scripts on my setup, if you want to test, click on 'more' smileys in advanced editor or try to bring up the user popup when you click on there name on a thread
                //$output=preg_replace ('/(\s*)\r\n(\s*)/', "", $output);
//this broke scripts on my setup, if you want to test, click on 'more' smileys in advanced editor or try to bring up the user popup when you click on there name on a thread


$output=preg_replace ('/\r\n(\s*)/', "\r\n", $output);
$output=preg_replace ('/<!-- .*? -->/',"",$output);


//$pagenew_byte=strlen($output);
//$page_kilobyte=number_format(($page_byte/1024),2);
//$pagenew_kilobyte=number_format(($pagenew_byte/1024),2);
//$pagesaved_byte=$page_byte-$pagenew_byte;
//$pagesaved_kilobyte=number_format((($pagesaved_byte)/1024),2);
//$pagesaved_perc=number_format(((100*$pagesaved_byte)/$page_byte),2);

//$output = str_replace('</body>', '<center><span class="smallfont">[Output: ' . $page_kilobyte . ' Kb. compressed to <b>' . $pagenew_kilobyte . '</b> Kb. by saving <b>' . $pagesaved_kilobyte . '</b> Kb. (' . $pagesaved_perc . '%)]</span></center></body>', $output);
//Logician Hack: 


remove the comments to re-enable the compression efficiency dialog

so that is the best working code at the moment?
still any known bugs then?

[Club3G]

I'm running that code, only the advanced editor bug. (It strips line breaks if you edit a post in advanced mode). Other than that, no problems whatsoever.

Riuji, unless you see a difference between my code and yours (I don't).

//Logician Hack:
$page_byte=strlen($output);
$output=preg_replace ('/\r\n(\s*)/', "\r\n", $output);
$output=preg_replace ('/<!-- .*? -->/',"",$output);

$pagenew_byte=strlen($output);
$page_kilobyte=number_format(($page_byte/1024),2);
$pagenew_kilobyte=number_format(($pagenew_byte/1024),2);
$pagesaved_byte=$page_byte-$pagenew_byte;
$pagesaved_kilobyte=number_format((($pagesaved_byte)/1024),2);
$pagesaved_perc=number_format(((100*$pagesaved_byte)/$page_byte),2);

$output = str_replace('</body>', '<center><span class="smallfont">[Output: ' . $page_kilobyte . ' Kb. CMP <b>' . $pagenew_kilobyte . '</b> Kb. Net <b>' . $pagesaved_kilobyte . '</b> Kb. (' . $pagesaved_perc . '%)]</span></center>
<br></body>', $output);
//Logician Hack:

I'd LOVE to see it keep a running tally in the admincp of kb saved.

[ryuji]

Originally Posted by Club3G

I'm running that code, only the advanced editor bug. (It strips line breaks if you edit a post in advanced mode). Other than that, no problems whatsoever.

Riuji, unless you see a difference between my code and yours (I don't).

//Logician Hack:
$page_byte=strlen($output);
$output=preg_replace ('/\r\n(\s*)/', "\r\n", $output);
$output=preg_replace ('/<!-- .*? -->/',"",$output);

$pagenew_byte=strlen($output);
$page_kilobyte=number_format(($page_byte/1024),2);
$pagenew_kilobyte=number_format(($pagenew_byte/1024),2);
$pagesaved_byte=$page_byte-$pagenew_byte;
$pagesaved_kilobyte=number_format((($pagesaved_byte)/1024),2);
$pagesaved_perc=number_format(((100*$pagesaved_byte)/$page_byte),2);

$output = str_replace('</body>', '<center><span class="smallfont">[Output: ' . $page_kilobyte . ' Kb. CMP <b>' . $pagenew_kilobyte . '</b> Kb. Net <b>' . $pagesaved_kilobyte . '</b> Kb. (' . $pagesaved_perc . '%)]</span></center>
<br></body>', $output);
//Logician Hack:

I'd LOVE to see it keep a running tally in the admincp of kb saved.

i dont have the advanced mode issue you speak of does it go away if you comment out the code for the file size savings?

[Club3G]

Nope, it still does it.

[ryuji]

what version of vbb are you running and try commenting out the replacment lines and figure out just which one is breaking the advanced editor