export.php

<?php
/* ********************************************* */
/* Original script by WebFooL on Untangle Forums */
/* Modifications by fsSnowboard                  */
/*                                               */
/* Use at your own risk                          */
/* ********************************************* */


$remote_filter_list = "https://easylist-downloads.adblockplus.org/easylist_noelemhide.txt";
$timezone_adjust = 60 * 60 * 7;  //Currently set to EST

$Content = "./easylist_noelemhide.txt";

$lines = file($Content);

$last_modified =  preg_replace('/! Last modified: /', '', $lines[3]);
$last_modified_time = strtotime($last_modified);
echo "File last modified: ". $last_modified ." (".$last_modified_time.")</br>\n";

$date_match_time = time() - (60 * 60 * 24 * 5) + $timezone_adjust;
echo "Date Match time (only used for matching if last modified is less than current date): ". $download_date_match ."(".$date_match_time.")</br>\n";

$download_match_time = $last_modified_time + (60 * 60 * 24 * 5) + $timezone_adjust;
$download_date_match = date("d M Y H:i T", $date_match_time);

echo "New download on: ". date("d M Y H:i", $download_match_time) ." (".$download_match_time.")</br>\n";

if($last_modified_time <= $date_match_time) {
	echo "File is 5 days old, downloading new one.";
	//if file is 5 days old, download new one
	$new_easylist = file_get_contents($remote_filter_list);
	file_put_contents("easylist_noelemhide.txt", $new_easylist);
	
	//read new file
	$Content = "./easylist_noelemhide.txt";  
	$lines = file($Content);
}



$badcharacters = array("#", '"', "'", "[", "]", "^", "\n", "\t", "\r", "||");


unset($lines[0]);  //Line 0 is [Adblock Plus 2.0] and not needed



foreach ($lines as $key => $value) {
	//strip out lines begining with ! because they are comments
    if($value{0} == "!") {
    	unset($lines[$key]);
    }
}

//remove line with @@ which are pass rules
foreach ($lines as $key => $value) {
    if($value{0} == "@" && $value{1} == "@") {
    	unset($lines[$key]);
    }
}

//foreach ($lines as $key => $value) {
	
    //strip everything to the right and including ^
    //$pos = strpos($value, "^");
	//if ($pos !== FALSE) {
	//    //echo $key." ".$pos."\n";
	//	//echo "part:". substr($value, 0, $pos)."\n";
	//	//echo "full:".$value."\n";
    //	$lines[$key] = substr($value, 0, $pos);
    //}
//}

//strip everything to the right of $
foreach ($lines as $key => $value) {
    $pos = strpos($value, '$');
    if ($pos !== FALSE) {
		$lines[$key] = substr($value, 0, $pos);
	}
}

//remove line with |http or |https because they are blocking most things.
//I can probably make a $badlines variable if I need to delete more lines
foreach ($lines as $key => $value) {
    if($value == "|http:" || $value == "|https:") {
    	unset($lines[$key]);
    }
}

//Remove empty lines
foreach ($lines as $key => $value) {
    if($value == "") {
    	unset($lines[$key]);
    }
}

//strip out bad characters
foreach ($lines as $key => $value) {
	$lines[$key] = str_replace($badcharacters, "", $value);
}

$lines = array_values(array_unique($lines));  //repair index

echo "Filter Items: ". count($lines) ."<br />\n";

$linesSplit = array_chunk( $lines, 2000 );
//print_r($linesSplit);


$i = 0; 
foreach ($linesSplit as $inner_array) { 
    $i++; 
    $fp = fopen('ABimport'.$i.'.json', 'w');     
    $filestart = "[";  
    fwrite($fp, $filestart); 
    while (list($key, $value) = each($inner_array)) 
    {
        //$cleanstr = str_replace($badcharacters, "", $value);     
    	$store = '{"enabled":true,"string":"'.$value.'","javaClass":"com.untangle.uvm.node.GenericRule"},';
		fwrite($fp, $store);
    }
    $fileend = "]";  
    fwrite($fp, $fileend); 
    fclose($fp);
}
?>