.
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
##|+PRIV
##|*IDENT=page-diagnostics-testport
##|*NAME=Diagnostics: Test Port
##|*DESCR=Allow access to the 'Diagnostics: Test Port' page.
##|*MATCH=diag_testport.php*
##|-PRIV
// Calling netcat and parsing the results has been moved to the if ($_POST) section so that the results are known
// before we draw the form and any resulting error messages will appear in the correct place
$allowautocomplete = true;
$pgtitle = array(gettext("Diagnostics"), gettext("Test Port"));
require_once("guiconfig.inc");
include("head.inc");
define('NC_TIMEOUT', 10);
$do_testport = false;
$retval = 1;
if ($_POST || $_REQUEST['host']) {
unset($input_errors);
/* input validation */
$reqdfields = explode(" ", "host port");
$reqdfieldsn = array(gettext("Host"), gettext("Port"));
do_input_validation($_REQUEST, $reqdfields, $reqdfieldsn, $input_errors);
if (!is_ipaddr($_REQUEST['host']) && !is_hostname($_REQUEST['host'])) {
$input_errors[] = gettext("Please enter a valid IP or hostname.");
}
if (!is_port($_REQUEST['port'])) {
$input_errors[] = gettext("Please enter a valid port number.");
}
if (($_REQUEST['srcport'] != "") && (!is_numeric($_REQUEST['srcport']) || !is_port($_REQUEST['srcport']))) {
$input_errors[] = gettext("Please enter a valid source port number, or leave the field blank.");
}
if (is_ipaddrv4($_REQUEST['host']) && ($_REQUEST['ipprotocol'] == "ipv6")) {
$input_errors[] = gettext("Cannot connect to an IPv4 address using IPv6.");
}
if (is_ipaddrv6($_REQUEST['host']) && ($_REQUEST['ipprotocol'] == "ipv4")) {
$input_errors[] = gettext("Cannot connect to an IPv6 address using IPv4.");
}
if (!$input_errors) {
$do_testport = true;
$timeout = NC_TIMEOUT;
}
/* Save these request vars even if there were input errors. Then the fields are refilled for the user to correct. */
$host = $_REQUEST['host'];
$sourceip = $_REQUEST['sourceip'];
$port = $_REQUEST['port'];
$srcport = $_REQUEST['srcport'];
$showtext = isset($_REQUEST['showtext']);
$ipprotocol = $_REQUEST['ipprotocol'];
if ($do_testport) {
?>
&1';
exec($nc_cmd, $result, $retval);
// echo "NC CMD: {$nc_cmd}\n\n";
if (!empty($result)) {
if (is_array($result)) {
foreach ($result as $resline) {
$ncoutput .= htmlspecialchars($resline) . "\n";
}
} else {
$ncoutput .= htmlspecialchars($result);
}
}
}
}
// Handle the display of all messages here where the user can readily see them
if ($input_errors) {
print_input_errors($input_errors);
} elseif ($do_testport) {
// User asked for a port test
if ($retval == 0) {
// Good host & port
$alert_text = sprintf(gettext('Port test to host: %1$s Port: %2$s successful.'), $host, $port);
if ($showtext) {
$alert_text .= ' ' . gettext('Any text received from the host will be shown below the form.');
}
print_info_box($alert_text, 'success', false);
} else {
// netcat exit value != 0
if ($showtext) {
$alert_text = gettext('No output received, or connection failed. Try with "Show Remote Text" unchecked first.');
} else {
$alert_text = gettext('Connection failed.');
}
print_info_box($alert_text, 'danger', false);
}
} else {
// First time, new page
print_info_box(gettext('This page performs a simple TCP connection test to determine if a host is up and accepting connections on a given port.') . " " .
gettext('This test does not function for UDP since there is no way to reliably determine if a UDP port accepts connections in this manner.'), 'warning', false);
}
$form = new Form(false);
$section = new Form_Section('Test Port');
$section->addInput(new Form_Input(
'host',
'*Hostname',
'text',
$host,
['placeholder' => 'Hostname to look up.']
));
$section->addInput(new Form_Input(
'port',
'*Port',
'text',
$port,
['placeholder' => 'Port to test.']
));
$section->addInput(new Form_Input(
'srcport',
'Source Port',
'text',
$srcport,
['placeholder' => 'Typically left blank.']
));
$section->addInput(new Form_Checkbox(
'showtext',
'Remote text',
'Show remote text',
$showtext
))->setHelp("Shows the text given by the server when connecting to the port. If checked it will take 10+ seconds to display in a panel below this form.");
$section->addInput(new Form_Select(
'sourceip',
'*Source Address',
$sourceip,
['' => 'Any'] + get_possible_traffic_source_addresses(true)
))->setHelp('Select source address for the trace.');
$section->addInput(new Form_Select(
'ipprotocol',
'*IP Protocol',
$ipprotocol,
array('ipv4' => 'IPv4', 'ipv6' => 'IPv6')
))->setHelp("If IPv4 or IPv6 is forced and a hostname is used that does not contain a result using that protocol, it will result in an error." .
" For example if IPv4 is forced and a hostname is used that only returns an AAAA IPv6 IP address, it will not work.");
$form->add($section);
$form->addGlobal(new Form_Button(
'Submit',
'Test',
null,
'fa-wrench'
))->addClass('btn-primary');
print $form;
// If the command succeeded, the user asked to see the output and there is output, then show it.
if ($retval == 0 && $showtext && !empty($ncoutput)):
?>