raspap-webgui-mirror/includes/dhcp.php

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<?php
include_once( 'includes/status_messages.php' );
/**
*
* Manage DHCP configuration
*
*/
function DisplayDHCPConfig() {
$status = new StatusMessages();
if( isset( $_POST['savedhcpdsettings'] ) ) {
if (CSRFValidate()) {
$config = 'interface='.$_POST['interface'].PHP_EOL
.'dhcp-range='.$_POST['RangeStart'].','.$_POST['RangeEnd'].',255.255.255.0,'.$_POST['RangeLeaseTime'].''.$_POST['RangeLeaseTimeUnits'];
exec( 'echo "'.$config.'" > /tmp/dhcpddata',$temp );
system( 'sudo cp /tmp/dhcpddata '. RASPI_DNSMASQ_CONFIG, $return );
if( $return == 0 ) {
$status->addMessage('Dnsmasq configuration updated successfully', 'success');
} else {
$status->addMessage('Dnsmasq configuration failed to be updated', 'danger');
}
} else {
error_log('CSRF violation');
}
}
exec( 'pidof dnsmasq | wc -l',$dnsmasq );
$dnsmasq_state = ($dnsmasq[0] > 0);
if( isset( $_POST['startdhcpd'] ) ) {
if (CSRFValidate()) {
if ($dnsmasq_state) {
$status->addMessage('dnsmasq already running', 'info');
} else {
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exec('sudo /etc/init.d/dnsmasq start', $dnsmasq, $return);
if ($return == 0) {
$status->addMessage('Successfully started dnsmasq', 'success');
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$dnsmasq_state = true;
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} else {
$status->addMessage('Failed to start dnsmasq', 'danger');
}
}
} else {
error_log('CSRF violation');
}
} elseif( isset($_POST['stopdhcpd'] ) ) {
if (CSRFValidate()) {
if ($dnsmasq_state) {
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exec('sudo /etc/init.d/dnsmasq stop', $dnsmasq, $return);
if ($return == 0) {
$status->addMessage('Successfully stopped dnsmasq', 'success');
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$dnsmasq_state = false;
} else {
$status->addMessage('Failed to stop dnsmasq', 'danger');
}
} else {
$status->addMessage('dnsmasq already stopped', 'info');
}
} else {
error_log('CSRF violation');
}
} else {
if( $dnsmasq_state ) {
$status->addMessage('Dnsmasq is running', 'success');
} else {
$status->addMessage('Dnsmasq is not running', 'warning');
}
}
exec( 'cat '. RASPI_DNSMASQ_CONFIG, $return );
$conf = ParseConfig($return);
$arrRange = explode( ",", $conf['dhcp-range'] );
$RangeStart = $arrRange[0];
$RangeEnd = $arrRange[1];
$RangeMask = $arrRange[2];
preg_match( '/([0-9]*)([a-z])/i', $arrRange[3], $arrRangeLeaseTime );
$hselected = '';
$mselected = '';
$dselected = '';
switch( $arrRangeLeaseTime[2] ) {
case "h":
$hselected = " selected";
break;
case "m":
$mselected = " selected";
break;
case "d":
$dselected = " selected";
break;
}
?>
<div class="row">
<div class="col-lg-12">
<div class="panel panel-primary">
<div class="panel-heading"><i class="fa fa-exchange fa-fw"></i> <?php echo _("Configure DHCP"); ?></div>
<!-- /.panel-heading -->
<div class="panel-body">
<p><?php $status->showMessages(); ?></p>
<!-- Nav tabs -->
<ul class="nav nav-tabs">
<li class="active"><a href="#server-settings" data-toggle="tab"><?php echo _("Server settings"); ?></a>
</li>
<li><a href="#client-list" data-toggle="tab"><?php echo _("Client list"); ?></a>
</li>
</ul>
<!-- Tab panes -->
<div class="tab-content">
<div class="tab-pane fade in active" id="server-settings">
<h4>DHCP server settings</h4>
<form method="POST" action="?page=dhcpd_conf">
<?php CSRFToken() ?>
<div class="row">
<div class="form-group col-md-4">
<label for="code">Interface</label>
<select class="form-control" name="interface">
<?php
exec("ip -o link show | awk -F': ' '{print $2}'", $interfaces);
foreach( $interfaces as $int ) {
$select = '';
if( $int == $conf['interface'] ) {
$select = " selected";
}
echo '<option value="'.$int.'"'.$select.'>'.$int.'</option>';
}
?>
</select>
</div>
</div>
<div class="row">
<div class="form-group col-md-4">
<label for="code"><?php echo _("Starting IP Address"); ?></label>
<input type="text" class="form-control"name="RangeStart" value="<?php echo $RangeStart; ?>" />
</div>
</div>
<div class="row">
<div class="form-group col-md-4">
<label for="code"><?php echo _("Ending IP Address"); ?></label>
<input type="text" class="form-control" name="RangeEnd" value="<?php echo $RangeEnd; ?>" />
</div>
</div>
<div class="row">
<div class="form-group col-xs-2 col-sm-2">
<label for="code"><?php echo _("Lease Time"); ?></label>
<input type="text" class="form-control" name="RangeLeaseTime" value="<?php echo $arrRangeLeaseTime[1]; ?>" />
</div>
<div class="col-xs-2 col-sm-2">
<label for="code"><?php echo _("Interval"); ?></label>
<select name="RangeLeaseTimeUnits" class="form-control" ><option value="m" <?php echo $mselected; ?>>Minute(s)</option><option value="h" <?php echo $hselected; ?>>Hour(s)</option><option value="d" <?php echo $dselected; ?>>Day(s)</option><option value="infinite">Infinite</option></select>
</div>
</div>
<input type="submit" class="btn btn-outline btn-primary" value="<?php echo _("Save settings"); ?>" name="savedhcpdsettings" />
<?php
if ( $dnsmasq_state ) {
echo '<input type="submit" class="btn btn-warning" value="' . _("Stop dnsmasq") . '" name="stopdhcpd" />';
} else {
echo'<input type="submit" class="btn btn-success" value="' . _("Start dnsmasq") . '" name="startdhcpd" />';
}
?>
</form>
</div><!-- /.tab-pane -->
<div class="tab-pane fade in" id="client-list">
<h4>Client list</h4>
<div class="col-lg-12">
<div class="panel panel-default">
<div class="panel-heading"><?php echo _("Active DHCP leases"); ?></div>
<!-- /.panel-heading -->
<div class="panel-body">
<div class="table-responsive">
<table class="table table-hover">
<thead>
<tr>
<th><?php echo _("Expire time"); ?></th>
<th><?php echo _("MAC Address"); ?></th>
<th><?php echo _("IP Address"); ?></th>
<th><?php echo _("Host name"); ?></th>
<th><?php echo _("Client ID"); ?></th>
</tr>
</thead>
<tbody>
<tr>
<?php
exec( 'cat ' . RASPI_DNSMASQ_LEASES, $leases );
foreach( $leases as $lease ) {
$lease_items = explode(' ', $lease);
foreach( $lease_items as $lease_item ) {
echo '<td>' . $lease_item . '</td>';
}
echo '</tr>';
};
?>
</tr>
</tbody>
</table>
</div><!-- /.table-responsive -->
</div><!-- /.panel-body -->
</div><!-- /.panel -->
</div><!-- /.col-lg-6 -->
</div><!-- /.tab-pane -->
</div><!-- /.tab-content -->
</div><!-- ./ Panel body -->
<div class="panel-footer"> <?php echo _("Information provided by Dnsmasq");?></div>
</div><!-- /.panel-primary -->
</div><!-- /.col-lg-12 -->
</div><!-- /.row -->
<?php
}
?>