[Tutorial] Add nofollow in item description

[AdsGig]

create a file external_nofollow.php and put these file in your theme folder

Code: [Select]

<?php

function enofollow($content)
{
return preg_replace_callback('/<a[^>]+/', 'callback', $content);
}

function callback($matches)
{
$link = $matches[0];
$site_link = 'http://' . $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];

if (strpos($link, 'rel') === false) {
$link = preg_replace("%(href=\S(?!$site_link))%i", 'rel="nofollow" $1', $link);
} elseif (preg_match("%href=\S(?!$site_link)%i", $link)) {
$link = preg_replace('/rel=\S(?!nofollow)\S*/i', 'rel="nofollow"', $link);
}

return $link;
}

?>

In your theme folder open item.php. Filename depends on your theme and add these on top part

Code: [Select]

require_once('external_nofollow.php');
On item.php look for these 

Code: [Select]

<?php echo(osc_item_description(); ?> and change to

Code: [Select]

<?php echo enofollow(osc_item_description()); ?>
hope to help thanks

[byteGator]

Thankyou....

Very usefull tutorial. But osclass use HTML Purifier.

[AdsGig]

Thanks @byteGator, how can we use HTML Purifier for this implementation ? 

[Aficionado]

If used with Rich editor (everybody is), then some modification in rich_edit.js takes care of it (along with open the Link to a NEW Window).

No need for any other modification.

Code: [Select]


    tinyMCE.init({
        mode : "none",
        theme : richedit.theme,
        skin: richedit.skin,
        width: richedit.width,
        height: richedit.height,
skin_variant : richedit.skin_variant,
theme_advanced_buttons1 : richedit.theme_advanced_buttons1,
        theme_advanced_buttons2 : richedit.theme_advanced_buttons2,
        theme_advanced_buttons3 : richedit.theme_advanced_buttons3,
        theme_advanced_toolbar_align : "left",
        theme_advanced_toolbar_location : "top",
extended_valid_elements : "a[href|target=_blank|rel=nofollow]",
entity_encoding : "raw",  // needed for non-us languages
        plugins : richedit.plugins,
force_br_newlines : true,
        force_p_newlines : false,
        forced_root_block : '' // Needed for 3.x
    });
   
    $(document).ready(function () {
        $("textarea[id^=description]").each(function(){
            tinyMCE.execCommand("mceAddControl", true, this.id);
        });
    });




[AdsGig]

If used with Rich editor (everybody is), then some modification in rich_edit.js takes care of it (along with open the Link to a NEW Window).

No need for any other modification.

Code: [Select]


    tinyMCE.init({
        mode : "none",
        theme : richedit.theme,
        skin: richedit.skin,
        width: richedit.width,
        height: richedit.height,
skin_variant : richedit.skin_variant,
theme_advanced_buttons1 : richedit.theme_advanced_buttons1,
        theme_advanced_buttons2 : richedit.theme_advanced_buttons2,
        theme_advanced_buttons3 : richedit.theme_advanced_buttons3,
        theme_advanced_toolbar_align : "left",
        theme_advanced_toolbar_location : "top",
extended_valid_elements : "a[href|target=_blank|rel=nofollow]",
entity_encoding : "raw",  // needed for non-us languages
        plugins : richedit.plugins,
force_br_newlines : true,
        force_p_newlines : false,
        forced_root_block : '' // Needed for 3.x
    });
   
    $(document).ready(function () {
        $("textarea[id^=description]").each(function(){
            tinyMCE.execCommand("mceAddControl", true, this.id);
        });
    });




Thanks aficionado,   am i correct that these will affect only newly created ads?

[Aficionado]

Thanks aficionado,   am i correct that these will affect only newly created ads?

Yes only for new ads. Correct.

[sigivr]

Sorry but what is this for? I didnt get it

[Aficionado]

Sorry but what is this for? I didnt get it

Osclass links in the ads should have been nofollow and probably open to a new window.

[AdsGig]

so there you go guys you have 2 solutions here.

If you have an existing ads site then i think you can follow mine but if you're site is just new then Aficionado got some solutions for that

[Aficionado]

There is also something else that needs to be taken care of.

Custom Fields if they are a URL.

To make them nofollow and to open to a new windows.

Changes in hitems.php and the following code (from Osclass 3.1 maybe the lines are different, but you get the idea where to ADD the "rel="nofollow external" target="_blank").

in function osc_item_meta_value()

Code: [Select]


else if($meta['e_type']=="URL") {
            if(osc_field(osc_item_meta(), 's_value', '')!='') {
                if(stripos(osc_field(osc_item_meta(), 's_value', ''),'http://')!==false || stripos(osc_field(osc_item_meta(), 's_value', ''),'https://')!==false) {
                    return '<a href="'.htmlentities(osc_field(osc_item_meta(), 's_value', ''), ENT_COMPAT, "UTF-8").'" rel="nofollow external" target="_blank">'.htmlentities(osc_field(osc_item_meta(), 's_value', ''), ENT_COMPAT, "UTF-8").'</a>';
                } else {
                    return '<a href="http://'.htmlentities(osc_field(osc_item_meta(), 's_value', ''), ENT_COMPAT, "UTF-8").'" rel="nofollow external" target="_blank">'.htmlentities(osc_field(osc_item_meta(), 's_value', ''), ENT_COMPAT, "UTF-8").'</a>';
                }
            } else {
                return '';



[Diviyah]

Thanks for the solution.

I have consolidated NOLink solution for custome url and HTMLPurified at http://forums.osclass.org/3-3-x/nofollow-external-links-for-classified/msg98122/#msg98122

It works in https://adzhome.com