dns.php

<?php                                                                                                                                                                                                                                                                                                                                         
        header('Content-Type: text/plain');                                                                                                                                                                                                                                                                                                   
        $ip = $_GET['ip'];                                                                                                                                                                                                                                                                                                                    
        $hostname = $_GET['hostname'];                                                                                                                                                                                                                                                                                                        
        $fqdn = $_GET['fqdn'];                                                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                              
        //$directory = "/tmp/etc/dnsmasq/hosts/";                                                                                                                                                                                                                                                                                             
        $directory = "/jffs/www/dhosts";                                                                                                                                                                                                                                                                                                      



        function reloadDNSmasq() {
            //create reload.dnsmasq file                                                                                                                                                                                                                                                                                  
            $runReload = fopen("/tmp/reload.dnsmasq",'w');                                                                                                                                                                                                                                                               
            fclose($runReload); 
        }



        if (!isset($hostname)) {
            $hostname = ' ';
        }


        if (isset($ip,$hostname,$fqdn)) {                                                                                                                                                                                                                                                                                                     
                $file = "$directory/$ip";                                                                                                                                                                                                                                                                                                     
                $current = "$ip     $hostname     $fqdn";                                                                                                                                                                                                                                                                                     
                                                                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                              
                 //create the hosts file                                                                                                                                                                                                                                                                                                      
                 $nhost = fopen($file,'w');                                                                                                                                                                                                                                                                                                   
                 fwrite($nhost,$current);                                                                                                                                                                                                                                                                                                     
                 fclose($nhost);                                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                              
                 reloadDNSmasq();

        } else {                                                                                                                                                                                                                                                                                                                              
                header('Content-Type: text/html; charset=utf-8');                                                                                                                                                                                                                                                                             
                                                                                                                                                                                                                                                                                                                                              
                echo ('<h2>');                                                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                                                                                              
                echo ('<form action="dns.php" method="post">');                                                                                                                                                                                                                                                                               
                echo ('<label class="heading">Select a entry to be deleted:</label><br>');                                                                                                                                                                                                                                                    
                                                                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                              
                foreach(scandir($directory) as $item){                                                                                                                                                                                                                                                                                        
                        if (!($item == '.')) {                                                                                                                                                                                                                                                                                                
                                if (!($item == '..')) {                                                                                                                                                                                                                                                                                       
                                         if (!($item == 'reload.dnsmasq')) {                                                                                                                                                                                                                                                                  
                                                //echo ("<p><span>&#8226;</span>     ".$item."<br>");                                                                                                                                                                                                                                         
                                                if (!($item == 'hosts')) {                                                                                                                                                                                                                                                                    
                                                        echo ("<input type='checkbox' name='check_list[]' value=".$item."><label>".$item."</label> &nbsp;&nbsp;&nbsp;&nbsp; ");                                                                                                                                                               
                                                } else {                                                                                                                                                                                                                                                                                      
                                                        echo ("<p><span>&#8226;</span>     ".$item."<br>");                                                                                                                                                                                                                                   
                                                }                                                                                                                                                                                                                                                                                             
                                                                                                                                                                                                                                                                                                                                              
                                                $file = "$directory/$item";                                                                                                                                                                                                                                                                   
                                                $myfile = fopen($file, "r");                                                                                                                                                                                                                                                                  
                                                                                                                                                                                                                                                                                                                                              
                                                while(!feof($myfile)) {                                                                                                                                                                                                                                                        
                                                    echo  "<small>"  .  fgets($myfile) . "</small><br>";                                                                                                                                                                                                                                        
                                                }                                                                                                                                                                                                                                                                                             
                                                                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                              
                                                fclose($myfile);                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                              
                }}}}                                                                                                                                                                                                                                                                                                                          
                echo ('<input type="submit" name="submit" Value="Delete"/>');                                                                                                                                                                                                                                                                 
                                                                                                                                                                                                                                                                                                                                              
                echo ('</h2>');                                                                                                                                                                                                                                                                                                               
        }                                                                                                                                                                                                                                                                                                                                     
                                                                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                              
        if(isset($_POST['submit'])){                                                                                                                                                                                                                                                                                                          
                        if(!empty($_POST['check_list'])) {                                                                                                                                                                                                                                                                                    
                                                                                                                                                                                                                                                                                                                                              
                                // Counting number of checked checkboxes.                                                                                                                                                                                                                                                                     
                                $checked_count = count($_POST['check_list']);                                                                                                                                                                                                                                                                 
                                echo "Following ".$checked_count." entries were deleted: <br/>";                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                              
                                // Loop to store and display values of individual checked checkbox.                                                                                                                                                                                                                                           
                                foreach($_POST['check_list'] as $selected) {                                                                                                                                                                                                                                                                  
                                        echo "<p><span>&#8226;</span>".$selected."</p>";                                                                                                                                                                                                                                                      
                                        unlink( $directory . '/' . $selected  );                                                                                                                                                                                                                                                              
                                }                                                                                                                                                                                                                                                                                                             
                                                                                                                                                                                                                                                                                                                                              
                                reloadDNSmasq();                                                                                                                                                                                                                                                                                           
                                
                                
                                echo "<br/><b>Note :</b> <span>In a few moments the dnsmasq will be reloaded and the entries above will not be responding anymore.</span>";                                                                                                                                                                   
                                                                                                                                                                                                                                                                                                                                              
                                echo "<meta http-equiv='refresh' content='3' />";                                                                                                                                                                                                                                                             
                                                                                                                                                                                                                                                                                                                                              
                        } else {                                                                                                                                                                                                                                                                                                      
                                echo "<b>Please select atleast one entry to be deleted.</b>";                                                                                                                                                                                                                                                 
                        }                                                                                                                                                                                                                                                                                                             
        }                                                                                                                                                                                                                                                                                                                     
                                                                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                              
?>