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<?php
/*
* Looking Glass - An easy to deploy Looking Glass
* Copyright (C) 2014-2018 Guillaume Mazoyer <gmazoyer@gravitons.in>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
require_once('includes/config.defaults.php');
require_once('config.php');
require_once('bird.php');
require_once('cisco.php');
require_once('cisco_iosxr.php');
require_once('juniper.php');
require_once('openbgpd.php');
require_once('quagga.php');
require_once('frr.php');
require_once('vyatta.php');
require_once('includes/utils.php');
require_once('auth/authentication.php');
abstract class Router {
protected $global_config;
protected $config;
protected $id;
protected $requester;
public function __construct($global_config, $config, $id, $requester) {
$this->global_config = $global_config;
$this->config = $config;
$this->id = $id;
$this->requester = $requester;
// Set defaults if not present
if (!isset($this->config['timeout'])) {
$this->config['timeout'] = 30;
}
if (!isset($this->config['disable_ipv6'])) {
$this->config['disable_ipv6'] = false;
}
if (!isset($this->config['disable_ipv4'])) {
$this->config['disable_ipv4'] = false;
}
}
private function sanitize_output($output) {
// No filters defined
if (count($this->global_config['filters']) < 1) {
return preg_replace('/(?:\n|\r\n|\r)$/D', '', $output);
}
$filtered = '';
foreach (preg_split("/((\r?\n)|(\r\n?))/", $output) as $line) {
$valid = true;
foreach ($this->global_config['filters'] as $filter) {
// Line has been marked as invalid
// Or filtered based on the configuration
if (!$valid || (preg_match($filter, $line) === 1)) {
$valid = false;
break;
}
}
if ($valid) {
// The line is valid, print it
$filtered .= $line."\n";
}
}
return preg_replace('/(?:\n|\r\n|\r)$/D', '', $filtered);
}
protected function format_output($command, $output) {
if ($this->global_config['output']['show_command']) {
$displayable = '<p><kbd>Command: '.$command.'</kdb></p>';
}
$displayable .= '<pre class="pre-scrollable">'.$output.'</pre>';
return $displayable;
}
protected function has_source_interface_id() {
return isset($this->config['source-interface-id']);
}
protected function get_source_interface_id($ip_version = null) {
// No source interface ID specified
if (!$this->has_source_interface_id()) {
return null;
}
$source_interface_id = $this->config['source-interface-id'];
// Generic interface ID (interface name)
if (!is_array($source_interface_id)) {
return $source_interface_id;
}
// Composed interface ID (IPv4 and IPv6 address)
if (($ip_version == null) || ($ip_version == 'ipv4')) {
return $source_interface_id['ipv4'];
} else if ($ip_version == 'ipv6') {
return $source_interface_id['ipv6'];
}
return null;
}
protected abstract function build_ping($destination);
protected abstract function build_traceroute($destination);
protected abstract function build_commands($command, $parameter);
public function get_config() {
return $this->config;
}
public function send_command($command, $parameter) {
try {
$commands = $this->build_commands($command, $parameter);
} catch (Exception $e) {
throw $e;
}
$auth = Authentication::instance($this->config);
try {
$data = '';
foreach ($commands as $selected) {
$output = $auth->send_command($selected);
$output = $this->sanitize_output($output);
$data .= $this->format_output($selected, $output);
$log = str_replace(array('%D', '%R', '%H', '%C'),
array(date('Y-m-d H:i:s'), $this->requester, $this->config['host'],
$selected), $this->global_config['logs']['format']);
log_to_file($log);
}
} catch (Exception $e) {
throw $e;
}
return $data;
}
public static final function instance($id, $requester) {
global $config;
$router_config = $config['routers'][$id];
switch (strtolower($router_config['type'])) {
case 'bird':
return new Bird($config, $router_config, $id, $requester);
case 'cisco':
case 'ios':
return new Cisco($config, $router_config, $id, $requester);
case 'ios-xr':
case 'iosxr':
return new IOSXR($config, $router_config, $id, $requester);
case 'juniper':
case 'junos':
return new Juniper($config, $router_config, $id, $requester);
case 'openbgpd':
return new OpenBGPd($config, $router_config, $id, $requester);
case 'quagga':
case 'zebra':
return new Quagga($config, $router_config, $id, $requester);
case 'frr':
return new Frr($config, $router_config, $id, $requester);
case 'vyatta':
case 'vyos':
case 'edgeos':
return new Vyatta($config, $router_config, $id, $requester);
default:
print('Unknown router type "'.$router_config['type'].'".');
return null;
}
}
}
// End of router.php
|
