mirror of
https://github.com/RaspAP/raspap-webgui.git
synced 2024-11-25 09:00:25 +00:00
293 lines
10 KiB
PHP
Executable file
293 lines
10 KiB
PHP
Executable file
<?php
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require_once 'includes/status_messages.php';
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require_once 'config.php';
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/**
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* Manage DHCP configuration
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*/
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function DisplayDHCPConfig()
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{
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$status = new StatusMessages();
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if (!RASPI_MONITOR_ENABLED) {
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if (isset($_POST['savedhcpdsettings'])) {
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saveDHCPConfig($status);
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}
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}
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exec('pidof dnsmasq | wc -l', $dnsmasq);
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$dnsmasq_state = ($dnsmasq[0] > 0);
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if (!RASPI_MONITOR_ENABLED) {
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if (isset($_POST['startdhcpd'])) {
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if ($dnsmasq_state) {
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$status->addMessage('dnsmasq already running', 'info');
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} else {
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exec('sudo /bin/systemctl start dnsmasq.service', $dnsmasq, $return);
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if ($return == 0) {
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$status->addMessage('Successfully started dnsmasq', 'success');
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$dnsmasq_state = true;
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} else {
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$status->addMessage('Failed to start dnsmasq', 'danger');
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}
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}
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} elseif (isset($_POST['stopdhcpd'])) {
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if ($dnsmasq_state) {
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exec('sudo /bin/systemctl stop dnsmasq.service', $dnsmasq, $return);
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if ($return == 0) {
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$status->addMessage('Successfully stopped dnsmasq', 'success');
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$dnsmasq_state = false;
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} else {
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$status->addMessage('Failed to stop dnsmasq', 'danger');
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}
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} else {
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$status->addMessage('dnsmasq already stopped', 'info');
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}
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}
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}
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getWifiInterface();
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$ap_iface = $_SESSION['ap_interface'];
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$serviceStatus = $dnsmasq_state ? "up" : "down";
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exec('cat '. RASPI_DNSMASQ_PREFIX.'raspap.conf', $return);
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$conf = ParseConfig($return);
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exec('cat '. RASPI_DNSMASQ_PREFIX.$ap_iface.'.conf', $return);
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$conf = array_merge(ParseConfig($return));
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$hosts = (array)$conf['dhcp-host'];
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$upstreamServers = (array)$conf['server'];
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exec("ip -o link show | awk -F': ' '{print $2}'", $interfaces);
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exec('cat ' . RASPI_DNSMASQ_LEASES, $leases);
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echo renderTemplate(
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"dhcp", compact(
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"status",
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"serviceStatus",
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"dnsmasq_state",
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"ap_iface",
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"conf",
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"hosts",
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"upstreamServers",
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"interfaces",
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"leases"
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)
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);
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}
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/**
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* Saves a DHCP configuration
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*
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* @return object $status
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*/
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function saveDHCPConfig($status)
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{
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$iface = $_POST['interface'];
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$return = 1;
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// handle disable dhcp option
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if (!isset($_POST['dhcp-iface']) && file_exists(RASPI_DNSMASQ_PREFIX.$iface.'.conf')) {
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// remove dhcp + dnsmasq configs for selected interface
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$return = removeDHCPConfig($iface,$status);
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$return = removeDnsmasqConfig($iface,$status);
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} else {
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$errors = validateDHCPInput();
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if (empty($errors)) {
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$return = updateDHCPConfig($iface,$status);
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} else {
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$status->addMessage($errors, 'danger');
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}
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if ($return == 1) {
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$status->addMessage('Dnsmasq configuration failed to be updated.', 'danger');
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return false;
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}
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if (($_POST['dhcp-iface'] == "1")) {
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$return = updateDnsmasqConfig($iface,$status);
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}
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if ($return == 0) {
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$status->addMessage('Dnsmasq configuration updated successfully.', 'success');
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} else {
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$status->addMessage('Dnsmasq configuration failed to be updated.', 'danger');
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return false;
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}
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return true;
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}
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}
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/**
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* Validates DHCP user input from the $_POST object
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*
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* @return string $errors
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*/
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function validateDHCPInput()
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{
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define('IFNAMSIZ', 16);
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$iface = $_POST['interface'];
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if (!preg_match('/^[^\s\/\\0]+$/', $iface)
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|| strlen($iface) >= IFNAMSIZ
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) {
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$errors .= _('Invalid interface name.').'<br />'.PHP_EOL;
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}
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if (!filter_var($_POST['StaticIP'], FILTER_VALIDATE_IP) && !empty($_POST['StaticIP'])) {
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$errors .= _('Invalid static IP address.').'<br />'.PHP_EOL;
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}
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if (!filter_var($_POST['SubnetMask'], FILTER_VALIDATE_IP) && !empty($_POST['SubnetMask'])) {
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$errors .= _('Invalid subnet mask.').'<br />'.PHP_EOL;
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}
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if (!filter_var($_POST['DefaultGateway'], FILTER_VALIDATE_IP) && !empty($_POST['DefaultGateway'])) {
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$errors .= _('Invalid default gateway.').'<br />'.PHP_EOL;
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}
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if (($_POST['dhcp-iface'] == "1")) {
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if (!filter_var($_POST['RangeStart'], FILTER_VALIDATE_IP) && !empty($_POST['RangeStart'])) {
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$errors .= _('Invalid DHCP range start.').'<br />'.PHP_EOL;
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}
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if (!filter_var($_POST['RangeEnd'], FILTER_VALIDATE_IP) && !empty($_POST['RangeEnd'])) {
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$errors .= _('Invalid DHCP range end.').'<br />'.PHP_EOL;
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}
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if (!ctype_digit($_POST['RangeLeaseTime']) && $_POST['RangeLeaseTimeUnits'] !== 'i') {
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$errors .= _('Invalid DHCP lease time, not a number.').'<br />'.PHP_EOL;
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}
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if (!in_array($_POST['RangeLeaseTimeUnits'], array('m', 'h', 'd', 'i'))) {
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$errors .= _('Unknown DHCP lease time unit.').'<br />'.PHP_EOL;
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}
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if ($_POST['Metric'] !== '' && !ctype_digit($_POST['Metric'])) {
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$errors .= _('Invalid metric value, not a number.').'<br />'.PHP_EOL;
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}
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}
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return $errors;
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}
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/**
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* Compares to string IPs
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*
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* @param string $ip1
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* @param string $ip2
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* @return boolean $result
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*/
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function compareIPs($ip1, $ip2)
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{
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$ipu1 = sprintf('%u', ip2long($ip1["ip"])) + 0;
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$ipu2 = sprintf('%u', ip2long($ip2["ip"])) + 0;
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return $ipu1 > $ipu2;
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}
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/**
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* Updates a dnsmasq configuration
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*
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* @param string $iface
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* @param object $status
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* @return boolean $result
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*/
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function updateDnsmasqConfig($iface,$status)
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{
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$config = '# RaspAP '.$iface.' configuration'.PHP_EOL;
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$config .= 'interface='.$iface.PHP_EOL.'dhcp-range='.$_POST['RangeStart'].','.$_POST['RangeEnd'].','.$_POST['SubnetMask'].',';
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if ($_POST['RangeLeaseTimeUnits'] !== 'i') {
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$config .= $_POST['RangeLeaseTime'];
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$config .= $_POST['RangeLeaseTimeUnits'].PHP_EOL;
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} else {
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$config .= 'infinite'.PHP_EOL;
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}
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// Static leases
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$staticLeases = array();
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for ($i=0; $i < count($_POST["static_leases"]["mac"]); $i++) {
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$mac = trim($_POST["static_leases"]["mac"][$i]);
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$ip = trim($_POST["static_leases"]["ip"][$i]);
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$comment = trim($_POST["static_leases"]["comment"][$i]);
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if ($mac != "" && $ip != "") {
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$staticLeases[] = array('mac' => $mac, 'ip' => $ip, 'comment' => $comment);
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}
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}
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// Sort ascending by IPs
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usort($staticLeases, "compareIPs");
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// Update config
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for ($i = 0; $i < count($staticLeases); $i++) {
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$mac = $staticLeases[$i]['mac'];
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$ip = $staticLeases[$i]['ip'];
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$comment = $staticLeases[$i]['comment'];
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$config .= "dhcp-host=$mac,$ip # $comment".PHP_EOL;
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}
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if ($_POST['no-resolv'] == "1") {
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$config .= "no-resolv".PHP_EOL;
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}
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foreach ($_POST['server'] as $server) {
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$config .= "server=$server".PHP_EOL;
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}
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if ($_POST['DNS1']) {
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$config .= "dhcp-option=6," . $_POST['DNS1'];
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if ($_POST['DNS2']) {
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$config .= ','.$_POST['DNS2'];
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}
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$config .= PHP_EOL;
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}
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file_put_contents("/tmp/dnsmasqdata", $config);
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$msg = file_exists(RASPI_DNSMASQ_PREFIX.$iface.'.conf') ? 'updated' : 'added';
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system('sudo cp /tmp/dnsmasqdata '.RASPI_DNSMASQ_PREFIX.$iface.'.conf', $result);
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if ($result == 0) {
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$status->addMessage('Dnsmasq configuration for '.$iface.' '.$msg.'.', 'success');
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}
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// write default 090_raspap.conf
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$config = '# RaspAP default config'.PHP_EOL;
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$config .='log-facility='.RASPI_DHCPCD_LOG.PHP_EOL;
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$config .='conf-dir=/etc/dnsmasq.d'.PHP_EOL;
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// handle log option
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if ($_POST['log-dhcp'] == "1") {
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$config .= "log-dhcp".PHP_EOL;
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}
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if ($_POST['log-queries'] == "1") {
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$config .= "log-queries".PHP_EOL;
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}
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$config .= PHP_EOL;
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file_put_contents("/tmp/dnsmasqdata", $config);
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system('sudo cp /tmp/dnsmasqdata '.RASPI_DNSMASQ_PREFIX.'raspap.conf', $result);
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return $result;
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}
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/**
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* Updates a dhcp configuration
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*
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* @param string $iface
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* @param object $status
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* @return boolean $result
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*/
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function updateDHCPConfig($iface,$status)
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{
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$cfg[] = '# RaspAP '.$iface.' configuration';
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$cfg[] = 'interface '.$iface;
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if (isset($_POST['StaticIP']) && $_POST['StaticIP'] !== '') {
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$mask = ($_POST['SubnetMask'] !== '' && $_POST['SubnetMask'] !== '0.0.0.0') ? '/'.mask2cidr($_POST['SubnetMask']) : null;
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$cfg[] = 'static ip_address='.$_POST['StaticIP'].$mask;
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}
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if (isset($_POST['DefaultGateway']) && $_POST['DefaultGateway'] !== '') {
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$cfg[] = 'static routers='.$_POST['DefaultGateway'];
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}
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if ($_POST['DNS1'] !== '' || $_POST['DNS2'] !== '') {
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$cfg[] = 'static domain_name_server='.$_POST['DNS1'].' '.$_POST['DNS2'];
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}
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if ($_POST['Metric'] !== '') {
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$cfg[] = 'metric '.$_POST['Metric'];
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}
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if ($_POST['Fallback'] == 1) {
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$cfg[] = 'profile static_'.$iface;
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$cfg[] = 'fallback static_'.$iface;
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}
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$cfg[] = $_POST['DefaultRoute'] == '1' ? 'gateway' : 'nogateway';
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if (( substr($iface, 0, 2) === "wl") && $_POST['NoHookWPASupplicant'] == '1') {
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$cfg[] = 'nohook wpa_supplicant';
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}
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$dhcp_cfg = file_get_contents(RASPI_DHCPCD_CONFIG);
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if (!preg_match('/^interface\s'.$iface.'$/m', $dhcp_cfg)) {
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$cfg[] = PHP_EOL;
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$cfg = join(PHP_EOL, $cfg);
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$dhcp_cfg .= $cfg;
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$status->addMessage('DHCP configuration for '.$iface.' added.', 'success');
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} else {
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$cfg = join(PHP_EOL, $cfg);
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$dhcp_cfg = preg_replace('/^#\sRaspAP\s'.$iface.'\s.*?(?=\s*^\s*$)/ms', $cfg, $dhcp_cfg, 1);
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$status->addMessage('DHCP configuration for '.$iface.' updated.', 'success');
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}
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file_put_contents("/tmp/dhcpddata", $dhcp_cfg);
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system('sudo cp /tmp/dhcpddata '.RASPI_DHCPCD_CONFIG, $result);
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return $result;
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}
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