Created
October 12, 2015 21:24
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<?php | |
/* | |
Plugin Name: GModules Rewrite Links | |
Description: This will filter links in posts, pages, and comments to use "http://gmodules.com/ig/proxy?url=" instead. | |
Version: 1.0 | |
*/ | |
add_filter( 'the_content' , 'mh_gmodule' , 50 ); | |
add_filter( 'the_content_rss' , 'mh_gmodule' , 50 ); | |
add_filter( 'comment_text' , 'mh_gmodule' , 50 ); | |
add_filter( 'comment_text_rss' , 'mh_gmodule' , 50 ); | |
function mh_gmodule( $content ) { | |
// Regex to put all <a href="http://some-url-here/path/etc" into an array | |
$mh_url_regex = "/\<a\ href\=\"http\:\/\/[a-zA-Z0-9\-\.]+[a-zA-Z]{2,3}.*\"/"; | |
preg_match_all( $mh_url_regex , $content, $mh_matches ); | |
// Go through that array and add gmodules hack | |
for ( $mh_count = 0; $mh_count < count( $mh_matches[0] ); $mh_count++ ) | |
{ | |
$mh_old_url = $mh_matches[0][$mh_count]; | |
$mh_new_url = str_replace( '<a href="http://' , '<a href="http://gmodules.com/ig/proxy?url=http://' , $mh_matches[0][$mh_count] ); | |
// Array of destinations we don't want to apply the hack to. | |
// Some sites such as core.trac.wordpress.org don't work with the gmodules hack | |
// Partial matches work here, the more specific the better. | |
$mh_ignore = array( | |
home_url( '/' ), | |
'trac.wordpress.org/' | |
); | |
// Make the substitution on all links except the ignore list | |
if( !mh_array_find( $mh_old_url , $mh_ignore ) ) | |
$content = str_replace( $mh_old_url , $mh_new_url , $content ); | |
} | |
return $content; | |
} | |
// Only see if the array element is contained in the string | |
function mh_array_find( $needle , $haystack ) { | |
if(!is_array($haystack)) return false; | |
foreach ($haystack as $key=>$item) { | |
// See if the item is in the needle | |
if (strpos($needle, $item ) !== false) return true; | |
} | |
return false; | |
} |
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