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<?php
require_once 'includes/status_messages.php';
require_once 'config.php';
/**
* Manages ad blocking (dnsmasq) configuration
*
*/
function DisplayAdBlockConfig()
{
$status = new StatusMessages();
$enabled = false;
$custom_enabled = false;
if (!RASPI_MONITOR_ENABLED) {
if (isset($_POST['saveadblocksettings'])) {
if ($_POST['adblock-enable'] == "1") {
$config = 'conf-file=' .RASPI_ADBLOCK_LISTPATH .'domains.txt'.PHP_EOL;
$config.= 'addn-hosts=' .RASPI_ADBLOCK_LISTPATH .'hostnames.txt'.PHP_EOL;
} elseif ($_POST['adblock-enable'] == "0") {
$config = null;
}
if ($_POST['adblock-custom-enable'] == "1") {
// validate custom hosts input
$lines = preg_split('/\r\n|\n|\r/', trim($_POST['adblock-custom-hosts']));
if (!in_array("", $lines, true)) {
foreach ($lines as $line) {
$ip_host = preg_split('/\s+/', $line);
$index++;
if (!filter_var($ip_host[0], FILTER_VALIDATE_IP)) {
$errors .= _('Invalid custom IP address found on line '.$index);
break;
}
if (!validate_host($ip_host[1])) {
$errors .= _('Invalid custom host found on line '.$index);
break;
}
}
}
file_put_contents("/tmp/dnsmasq_custom", $_POST['adblock-custom-hosts'].PHP_EOL);
system("sudo cp /tmp/dnsmasq_custom " .RASPI_ADBLOCK_LISTPATH .'custom.txt', $return);
$config.= 'addn-hosts=' .RASPI_ADBLOCK_LISTPATH .'custom.txt'.PHP_EOL;
$custom_enabled = true;
}
if (empty($errors)) {
file_put_contents("/tmp/dnsmasqdata", $config);
system('sudo cp /tmp/dnsmasqdata '.RASPI_ADBLOCK_CONFIG, $return);
if ($return == 0) {
$status->addMessage('Adblock configuration updated successfully', 'success');
} else {
$status->addMessage('Adblock configuration failed to be updated.', 'danger');
}
} else {
$status->addMessage($errors, 'danger');
}
} elseif (isset($_POST['restartadblock']) || isset($_POST['startadblock'])) {
exec('sudo /bin/systemctl restart dnsmasq.service', $dnsmasq, $return);
if ($return == 0) {
$status->addMessage('Adblock restart successful', 'success');
} else {
$status->addMessage('Adblock failed to restart.', 'danger');
}
}
}
exec('cat '. RASPI_ADBLOCK_CONFIG, $return);
$arrConf = ParseConfig($return);
if (sizeof($arrConf) > 0) {
$enabled = true;
}
exec('pidof dnsmasq | wc -l', $dnsmasq);
$dnsmasq_state = ($dnsmasq[0] > 0);
$serviceStatus = $dnsmasq_state && $enabled ? "up" : "down";
echo renderTemplate(
"adblock", compact(
"status",
"serviceStatus",
"dnsmasq_state",
"enabled",
"custom_enabled"
)
);
}