PHP-classes client appmonitor-client.class.php

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📦 Class \appmonitor

/**
 * ____________________________________________________________________________
 * 
 *  _____ _____ __                   _____         _ _           
 * |     |     |  |      ___ ___ ___|     |___ ___|_| |_ ___ ___ 
 * |-   -| | | |  |__   | .'| . | . | | | | . |   | |  _| . |  _|
 * |_____|_|_|_|_____|  |__,|  _|  _|_|_|_|___|_|_|_|_| |___|_|  
 *                          |_| |_|                              
 *                           _ _         _                                            
 *                       ___| |_|___ ___| |_                                          
 *                      |  _| | | -_|   |  _|                                         
 *                      |___|_|_|___|_|_|_|   
 *                                                               
 * ____________________________________________________________________________
 * 
 * APPMONITOR :: CLASS FOR CLIENT CHECKS<br>
 * <br>
 * THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE <br>
 * LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR <br>
 * OTHER PARTIES PROVIDE THE PROGRAM ?AS IS? WITHOUT WARRANTY OF ANY KIND, <br>
 * EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED <br>
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE <br>
 * ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. <br>
 * SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY <br>
 * SERVICING, REPAIR OR CORRECTION.<br>
 * <br>
 * --------------------------------------------------------------------------------<br>
 * <br>
 * --- HISTORY:<br>
 * 2014-10-24  0.5    axel.hahn@iml.unibe.ch<br>
 * 2014-11-21  0.6    axel.hahn@iml.unibe.ch  removed meta::ts <br>
 * 2018-08-23  0.50   axel.hahn@iml.unibe.ch  show version<br>
 * 2018-08-24  0.51   axel.hahn@iml.unibe.ch  method to show local status page<br>
 * 2018-08-27  0.52   axel.hahn@iml.unibe.ch  add pdo connect (starting with mysql)<br>
 * 2018-11-05  0.58   axel.hahn@iml.unibe.ch  additional flag in http check to show content<br>
 * 2019-05-31  0.87   axel.hahn@iml.unibe.ch  add timeout as param in connective checks (http, tcp, databases)<br>
 * 2020-05-03  0.110  axel.hahn@iml.unibe.ch  update renderHtmloutput<br>
 * 2023-07-06  0.128  axel.hahn@unibe.ch      update httpcontent check<br>
 * 2024-07-19  0.137  axel.hahn@unibe.ch      php 8 only: use typed variables
 * 2024-11-22  0.141  axel.hahn@unibe.ch      Set client version to server version after updating http, mysqli and app checks
 * --------------------------------------------------------------------------------<br>
 * @version 0.141
 * @author Axel Hahn
 * @link TODO
 * @license GPL
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL 3.0
 * @package IML-Appmonitor
 */

🔶 Properties

(none)

🔷 Methods

🔹 public __construct()

constructor: init data

Return: ``

Parameters: 0

🔹 public abort()

Stop processing the client checks and abort with an error

Return: void

Parameters: 1

Parameter Type Description
<required> string $sMessage string text to show after a 503 headline

🔹 public addCheck()

Add a check array

Return: bool

Parameters: 1

Parameter Type Description
<optional> $aJob = [] array * array with check data

🔹 public addEmail()

Add an email to notifications list

Return: boolean *

Parameters: 1

Parameter Type Description
<required> string $sEmailAddress string email address to add

🔹 public addSlackWebhook()

Add slack channel for notification

Return: bool

Parameters: 2

Parameter Type Description
<required> string $sLabel string
<required> string $sSlackWebhookUrl string

🔹 public addTag()

Add a tag for grouping in the server gui. Spaces will be replaced with underscore

Return: bool

Parameters: 1

Parameter Type Description
<required> string $sTag string tag to add

🔹 public checkIp()

Check referers IP address if it matches any entry in the list requires http request; CLI is always allowed On deny this method exits with 403 response

Return: bool

Parameters: 1

Parameter Type Description
<optional> array $aAllowedIps = [] array array of allowed ip addresses / ranges
the ip must match from the beginning, i.e.
“127.0.” will allow requests from 127.0.X.Y

🔹 public checkToken()

Check a token requires http request; CLI is always allowed On deny this method exits with 403 response

Return: bool

Parameters: 2

Parameter Type Description
<required> string $sVarname string name of GET variable
<required> string $sToken string value

🔹 public getResults()

Get full array for response with metadata and checks

Return: array

Parameters: 0

🔹 public listChecks()

list all available check functions. This is a helper class you cann call to get an overview over built in functions. You get a flat array with all function names.

Return: array

Parameters: 0

🔹 public render()

Send http response with header and appmonitor JSON data

Return: string

Parameters: 0

🔹 public renderHtmloutput()

Output appmonitor client status as single html page

@example

ob_start();<br>
require __DIR__ . '/appmonitor/client/index.php';
$sJson=ob_get_contents();
ob_end_clean();
$oMonitor->renderHtmloutput($sJson);

Return: string

Parameters: 1

Parameter Type Description
<required> string $sJson string JSON of client output

🔹 public setHost()

Set the physical hostname for metadata; if no host is given then the php_uname(“n”) will be used to set one.

Return: bool

Parameters: 1

Parameter Type Description
<optional> string $s = ‘’ string hostname

🔹 public setResult()

Set final result in meta data; if no value was given then it sets the biggest value of any check.

Return: bool

Parameters: 1

Parameter Type Description
<optional> int $iResult = -1 int set resultcode; one of RESULT_OK

🔹 public setTTL()

set a ttl value in seconds to define how long a server should not ask again for a new status of this instance

Return: boolean *

Parameters: 1

Parameter Type Description
<optional> $iTTl = 0 TTL * TTL value in sec

🔹 public setWebsite()

Set a name for this website or application and its environment (dev, test, prod);

If you have several application in subdirectories, i.e. /blog, /shop… then you should the path or any description to identify them too

if no argument is given the name of HTTP_HOST will be used

Return: bool

Parameters: 1

Parameter Type Description
<optional> $sWebsite = ‘’ Name * Name of the website or web application

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