vb.org Archive - REGEX in vB Template Conditional

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imported_silkroad

10-30-2009 06:32 PM

REGEX in vB Template Conditional

Hello!

We have some code we want to omit from the template if the USER_AGENT is GoogleBot, Mediapartners-Google, etc. For example (not working code)

Code:

<if condition="!in_array($_SERVER['HTTP_USER_AGENT'], array('GoogleBot','Mediapartners-Google'))">

<!-- this is the code -->

</if>

The user agent strings are:

Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
Mediapartners-Google

So, the template condition above works well for Mediaparters-Google but does not match the longer GoogleBot string.

Is there a way to simply add some type of REGEX to the conditional, so 'GoogleBot' will match the longer user agent string?

Thanks!!

RenatoMN

10-31-2009 02:28 AM

You will need to create a Plugin.

Product: vBulletin
Name: Hide Content From Bots
Hook: showthread_start
Execution order: 5

PHP Code:


		
			
// bots list ([] = add a new item in the end of an array)

$hide_content_agent_list[] = "GoogleBot";

$hide_content_agent_list[] = "Mediapartners-Google";

$hide_content_agent_list[] = "ad more...";



// get the user agent

$hide_content_useragent = $_SERVER['HTTP_USER_AGENT'];



// the default is true, false for bots (<else />)

$show_for_humans = true;



foreach($hide_content_agent_list as $hcag) {

    if (preg_match("/$hcag/i", "$hide_content_useragent")) {

        $show_for_humans = false;

        break;

    }

}

Plugin is active: Yes //do not forget it :)

Then use the condition either this:

Code:

<if condition="$show_for_humans">

code to be show only for humans

</if>

Code:

<if condition="$show_for_humans">

code to be show only for humans

<else />

the replacement text for bots

</if>

imported_silkroad

10-31-2009 06:05 AM

Thanks! I'll give it a "plug" and see how it works!

--------------- Added [DATE]1256975400[/DATE] at [TIME]1256975400[/TIME] ---------------

I could not get this to work (for our purposes) in the hook location showthread_start, but I was able to get it to work in postbit_display_start.

Perhaps this is because the content we are masking is in the content of the postbit template?

RenatoMN

10-31-2009 01:31 PM

Yes. Sorry for not asking or better explaining this.

Leave as postbit_display_start if you're not going to use it elsewhere, or try another location, like global_start if you're going to use it widely in your boards.

imported_silkroad

10-31-2009 03:33 PM

Quote:

Originally Posted by RenatoMN (Post 1908679)

Hi RenatoMN!

Oh! No need to apologize. Your code worked fine. Here is final version I used:

PHP Code:


		
			
// bots list ([] = add a new item in the end of an array) 

$hide_content_agent_list[] = "GoogleBot"; 

$hide_content_agent_list[] = "Mediapartners-Google"; 



// get the user agent 

$hide_content_useragent = $_SERVER['HTTP_USER_AGENT']; 



// the default is true, false for bots (<else />) 

$show_for_humans = TRUE; 



foreach($hide_content_agent_list as $hcag) { 

    if (preg_match("/$hcag/i", "$hide_content_useragent")) { 

        $show_for_humans = FALSE; 

        break; 

    } 

}

I may add some more bots later. Thanks again! This is very useful for everyone.

RenatoMN

10-31-2009 05:37 PM

I'm glad it worked (I didn't even tested :p )

If you (or anybody) want this as a product, with ACP options (a bot list management), send me a PM so we can discuss details and price.

Regards,

imported_silkroad

11-01-2009 05:43 AM

FWIW, I cannot get this plugin to work in postbit if I move it to the hook global_start however it works fine if the hook is postbit_display_start.

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