"Google",
"208.67.222.222" => "OpenDNS",
"4.2.2.1" => "Level3",
"199.85.126.10" => "Norton",
"8.26.56.26" => "Comodo"
];
$secondaryDNSservers = [
"8.8.4.4" => "Google",
"208.67.220.220" => "OpenDNS",
"4.2.2.2" => "Level3",
"199.85.127.10" => "Norton",
"8.20.247.20" => "Comodo"
];
$error = "";
$success = "";
if(isset($_POST["field"]))
{
// Process request
switch ($_POST["field"]) {
// Set DNS server
case "DNS":
$primaryDNS = $_POST["primaryDNS"];
$secondaryDNS = $_POST["secondaryDNS"];
// Get primary DNS server IP address
if($primaryDNS === "Custom")
{
$primaryIP = $_POST["DNS1IP"];
}
else
{
$primaryIP = array_flip($primaryDNSservers)[$primaryDNS];
}
// Validate primary IP
if (!validIP($primaryIP))
{
$error .= "Primary IP (".$primaryIP.") is invalid!
";
}
// Get secondary DNS server IP address
if($secondaryDNS === "Custom")
{
if(strlen($_POST["DNS2IP"]) > 0)
{
$secondaryIP = $_POST["DNS2IP"];
}
else
{
$secondaryIP = "none";
}
}
else
{
$secondaryIP = array_flip($secondaryDNSservers)[$secondaryDNS];
}
// Validate secondary IP
if (!validIP($secondaryIP) && $secondaryIP != "none" && strlen($secondaryIP) > 0)
{
$error .= "Secondary IP (".$secondaryIP.") is invalid!
";
}
// Check if domain-needed is requested
if(isset($_POST["DNSrequiresFQDN"]))
{
$extra = "domain-needed ";
}
else
{
$extra = "domain-not-needed ";
}
// Check if domain-needed is requested
if(isset($_POST["DNSbogusPriv"]))
{
$extra .= "bogus-priv";
}
else
{
$extra .= "no-bogus-priv";
}
// If there has been no error we can save the new DNS server IPs
if(!strlen($error))
{
exec("sudo pihole -a setdns ".$primaryIP." ".$secondaryIP." ".$extra);
$success .= "The DNS settings have been updated";
}
else
{
$error .= "The settings have been reset to their previous values";
}
break;
// Set query logging
case "Logging":
if($_POST["action"] === "Disable")
{
exec("sudo pihole -l off");
$success .= "Logging has been disabled";
}
else
{
exec("sudo pihole -l on");
$success .= "Logging has been enabled";
}
break;
// Set domains to be excluded from being shown in Top Domains (or Ads) and Top Clients
case "API":
// Explode the contents of the textareas into PHP arrays
// \n (Unix) and \r\n (Win) will be considered as newline
// array_filter( ... ) will remove any empty lines
$domains = array_filter(preg_split('/\r\n|[\r\n]/', $_POST["domains"]));
$clients = array_filter(preg_split('/\r\n|[\r\n]/', $_POST["clients"]));
$domainlist = "";
$first = true;
foreach($domains as $domain)
{
if(!validDomain($domain))
{
$error .= "Top Domains/Ads entry ".$domain." is invalid!
";
}
if(!$first)
{
$domainlist .= ",";
}
else
{
$first = false;
}
$domainlist .= $domain;
}
$clientlist = "";
$first = true;
foreach($clients as $client)
{
if(!validIP($client))
{
$error .= "Top Clients entry ".$client." is invalid (use only IP addresses)!
";
}
if(!$first)
{
$clientlist .= ",";
}
else
{
$first = false;
}
$clientlist .= $client;
}
// Set Top Lists options
if(!strlen($error))
{
// All entries are okay
exec("sudo pihole -a setexcludedomains ".$domainlist);
exec("sudo pihole -a setexcludeclients ".$clientlist);
$success .= "The API settings have been updated
";
}
else
{
$error .= "The settings have been reset to their previous values";
}
// Set query log options
if(isset($_POST["querylog-permitted"]) && isset($_POST["querylog-blocked"]))
{
exec("sudo pihole -a setquerylog all");
if(!isset($_POST["privacyMode"]))
{
$success .= "All entries will be shown in Query Log";
}
else
{
$success .= "Only blocked entries will be shown in Query Log";
}
}
elseif(isset($_POST["querylog-permitted"]))
{
exec("sudo pihole -a setquerylog permittedonly");
if(!isset($_POST["privacyMode"]))
{
$success .= "Only permitted will be shown in Query Log";
}
else
{
$success .= "No entries will be shown in Query Log";
}
}
elseif(isset($_POST["querylog-blocked"]))
{
exec("sudo pihole -a setquerylog blockedonly");
$success .= "Only blocked entries will be shown in Query Log";
}
else
{
exec("sudo pihole -a setquerylog nothing");
$success .= "No entries will be shown in Query Log";
}
if(isset($_POST["privacyMode"]))
{
exec("sudo pihole -a privacymode true");
$success .= " (privacy mode enabled)";
}
else
{
exec("sudo pihole -a privacymode false");
}
if(isset($_POST["resolve-forward"]))
{
exec("sudo pihole -a resolve forward true");
}
else
{
exec("sudo pihole -a resolve forward false");
}
if(isset($_POST["resolve-clients"]))
{
exec("sudo pihole -a resolve clients true");
}
else
{
exec("sudo pihole -a resolve clients false");
}
break;
case "webUI":
if($_POST["tempunit"] == "F")
{
exec('sudo pihole -a -f');
}
elseif($_POST["tempunit"] == "K")
{
exec('sudo pihole -a -k');
}
else
{
exec('sudo pihole -a -c');
}
if(isset($_POST["boxedlayout"]))
{
exec('sudo pihole -a layout boxed');
}
else
{
exec('sudo pihole -a layout traditional');
}
$success .= "The webUI settings have been updated";
break;
case "reboot":
exec("sudo pihole -a reboot");
$success = "The system will reboot in 5 seconds...";
break;
case "restartdns":
exec("sudo pihole -a restartdns");
$success = "The DNS server has been restarted";
break;
case "flushlogs":
exec("sudo pihole -f");
$success = "The Pi-Hole log file has been flushed";
break;
case "DHCP":
if(isset($_POST["active"]))
{
// Validate from IP
$from = $_POST["from"];
if (!validIP($from))
{
$error .= "From IP (".$from.") is invalid!
";
}
// Validate to IP
$to = $_POST["to"];
if (!validIP($to))
{
$error .= "To IP (".$to.") is invalid!
";
}
// Validate router IP
$router = $_POST["router"];
if (!validIP($router))
{
$error .= "Router IP (".$router.") is invalid!
";
}
$domain = $_POST["domain"];
// Validate Domain name
if(!validDomain($domain))
{
$error .= "Domain name ".$domain." is invalid!
";
}
$leasetime = $_POST["leasetime"];
// Validate Lease time length
if(!is_numeric($leasetime) || intval($leasetime) < 0)
{
$error .= "Lease time ".$leasetime." is invalid!
";
}
if(isset($_POST["useIPv6"]))
{
$ipv6 = "true";
$type = "(IPv4 + IPv6)";
}
else
{
$ipv6 = "false";
$type = "(IPv4)";
}
if(!strlen($error))
{
exec("sudo pihole -a enabledhcp ".$from." ".$to." ".$router." ".$leasetime." ".$domain." ".$ipv6);
$success .= "The DHCP server has been activated ".$type;
}
}
else
{
exec("sudo pihole -a disabledhcp");
$success = "The DHCP server has been deactivated";
}
break;
default:
// Option not found
$debug = true;
break;
}
}
// Credit: http://stackoverflow.com/a/5501447/2087442
function formatSizeUnits($bytes)
{
if ($bytes >= 1073741824)
{
$bytes = number_format($bytes / 1073741824, 2) . ' GB';
}
elseif ($bytes >= 1048576)
{
$bytes = number_format($bytes / 1048576, 2) . ' MB';
}
elseif ($bytes >= 1024)
{
$bytes = number_format($bytes / 1024, 2) . ' kB';
}
elseif ($bytes > 1)
{
$bytes = $bytes . ' bytes';
}
elseif ($bytes == 1)
{
$bytes = $bytes . ' byte';
}
else
{
$bytes = '0 bytes';
}
return $bytes;
}
?>