Subversion Repositories vnag

<?php /* <ViaThinkSoftSignature>

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</ViaThinkSoftSignature> */ ?>

<?php

/*

 * VNag - Nagios Framework for PHP

 * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com>

 * Licensed under the terms of the Apache 2.0 license

 *

 * Revision 2023-09-13

 */

declare(ticks=1);

class VNagWebReader extends VNag {

        protected $argUrl = null;

        protected $argId = null;

        protected $argBasicAuth = null;

        protected $argPassword = null;

        protected $argSignPubKey = null;

        public function __construct() {

                parent::__construct();

                if ($this->is_http_mode()) {

                        // Don't allow the standard arguments via $_REQUEST

                        $this->registerExpectedStandardArguments('');

                } else {

                        $this->registerExpectedStandardArguments('Vht');

                }

                $this->addExpectedArgument($this->argUrl        = new VNagArgument('u', 'url',        VNagArgument::VALUE_REQUIRED, 'url', 'The URI of the page that contains an embedded machine readable VNag output', null));

                $this->addExpectedArgument($this->argId         = new VNagArgument('i', 'id',         VNagArgument::VALUE_REQUIRED, 'id', 'The ID (serial or individual name) of the embedded Nagios output. Usually "0" if only one monitor is used without individual names.', '0'));

                $this->addExpectedArgument($this->argBasicAuth  = new VNagArgument('b', 'basicAuth',  VNagArgument::VALUE_REQUIRED, 'username:password', 'In case the target website requires Basic Auth, please pass username and password, divided by double-colon, into this argument.', null));

                $this->addExpectedArgument($this->argPassword   = new VNagArgument('p', 'password',   VNagArgument::VALUE_REQUIRED, 'password', 'In case the machine readable VNag output is encrypted, enter the password here.', null));

                $this->addExpectedArgument($this->argSignPubKey = new VNagArgument('k', 'signPubKey', VNagArgument::VALUE_REQUIRED, 'pemFile', 'In case the machine readable VNag output is signed, enter the filename of the public key (PEM) file here, to verify the signature of the output.', null));

                $this->getHelpManager()->setPluginName('vnag_webreader');

                $this->getHelpManager()->setVersion('1.0');

                $this->getHelpManager()->setShortDescription('This plugin reads embedded machine readable VNag output from a website and converts it into a Nagios compatible output format.');

                $this->getHelpManager()->setCopyright('Copyright (C) 2011-$CURYEAR$ Daniel Marschall, ViaThinkSoft.');

                $this->getHelpManager()->setSyntax('$SCRIPTNAME$ -u <url> [-i <id>] [-b <username>:<password>] [-k pubKeyFile] [-p <password>]');

                $this->getHelpManager()->setFootNotes('If you encounter bugs, please contact ViaThinkSoft at www.viathinksoft.com');

        }

        protected function cbRun() {

                $this->argUrl->require();

                $this->argId->require();

                $url = $this->argUrl->getValue();

                $this->id = $this->argId->getValue(); // default is '0', so we do not need to check for available()

                if ($this->argPassword->available()) $this->password_in = $this->argPassword->getValue();

                if ($this->argSignPubKey->available()) $this->pubkey = $this->argSignPubKey->getValue();

                $header = '';

                $auth = $this->argBasicAuth->getValue();

                if (!is_null($auth)) $auth .= sprintf("Authorization: Basic %s\r\n", base64_encode($auth));

                $header .= sprintf("User-Agent: PHP/%s VNag/%s\r\n", phpversion(), self::VNAG_VERSION);

                $options = array(

                    'http' => array(

                        'method' => 'GET',

                        'header' => $header

                    )

                );

                $context = stream_context_create($options);

                $cont = file_get_contents($url, false, $context);

                if (!$cont) throw new VNagException("Cannot access $url");

                $data = $this->readInvisibleHTML($cont);

                if (!$data) throw new VNagInvalidArgumentException("No monitor with ID \"$this->id\" found at URL $url");

                if (isset($data['text'])) {

                        $this->setHeadline("Special content delivered from the web monitor (see verbose info)");

                        $this->addVerboseMessage($data['text'], VNag::VERBOSITY_SUMMARY); // VERBOSE_SUMMARY is *our* verbosity, not the verbosity of the target monitor

                } else {

                        foreach ($data['performance_data'] as $perfdata) {

                                $this->addPerformanceData(VNagPerformanceData::createByString($perfdata));

                        }

                        $this->setHeadline($data['headline']);

                        $this->addVerboseMessage($data['verbose_info'], VNag::VERBOSITY_SUMMARY); // VERBOSE_SUMMARY is *our* verbosity, not the verbosity of the target monitor

                }

                $this->setStatus($data['status'], true);

        }

}