cronlog.class.php

<?php
/**
 * ______________________________________________________________________
 * 
 *  _____                 _       _             _                        
 * /  __ \               (_)     | |           (_)                       
 * | /  \/_ __ ___  _ __  _  ___ | |__   __   ___  _____      _____ _ __ 
 * | |   | '__/ _ \| '_ \| |/ _ \| '_ \  \ \ / / |/ _ \ \ /\ / / _ \ '__|
 * | \__/\ | | (_) | | | | | (_) | |_) |  \ V /| |  __/\ V  V /  __/ |   
 *  \____/_|  \___/|_| |_| |\___/|_.__/    \_/ |_|\___| \_/\_/ \___|_|   
 *                      _/ |                                             
 *                     |__/                                              
 * ______________________________________________________________________
 * 
 * The cronjob viewer for centralized monitoring of cronjobs using
 * Axels cronrwapper (see <https://github.com/axelhahn/cronwrapper>).
 * 
 * You can browse all servers to see 
 * - the last status of all cronjobs
 * - results an execution times of running jonbs
 * - a timeline for all jobs running > 60s
 * 
 * 
 * Free software. Open Source. GNU GPL 3.
 * SOURCE: <https://git-repo.iml.unibe.ch/iml-open-source/cronlog-viewer>
 * 
 * ______________________________________________________________________
 * 
 * The cronlog class contains non visual methods
 * @see cronlog-renderer.class.php
 *
 * @license GNU GPL 3.0
 * @author Axel Hahn <axel.hahn@iml.unibe.ch>
 */

class cronlog {
    
    
    protected $_sDataDir = "__APPDIR__/data";
    protected $_iTtlCache = 60; // in sec

    /**
     * when show an error for expired jobs (latency to execute job and sync logs)
     * @var integer
     */
    protected $_iExpiredJobsFailAfter = 60*30; // in sec
    protected $_iMinTtl = 0; // in sec
    protected $_aSkipJoblogs = array();
    
    protected $_aServers = array();
    protected $_sActiveServer = false;
    
    protected $_sFileFilter_serverjoblog = '*joblog*.done';
    protected $_sFileFilter_serverlog = '*.log';

    // ----------------------------------------------------------------------
    // MAIN
    // ----------------------------------------------------------------------

    /**
     * init
     * @return boolean
     */
    public function __construct() {

        // read config
        if (file_exists(__DIR__.'/../config/inc_cronlog.php')){
            $aCfgTemp=include(__DIR__.'/../config/inc_cronlog.php');
            $this->_sDataDir = isset($aCfgTemp['sDatadir']) ? $aCfgTemp['sDatadir'] : $this->_sDataDir;
            $this->_iTtlCache = isset($aCfgTemp['iTtlCache']) ? (int)$aCfgTemp['iTtlCache'] : $this->_iTtlCache;