lepton_logging.php

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<?php
 
declare(strict_types=1);
 
class LEPTON_logging
{
    public LEPTON_database $database;
    public string $log_table = '';
    public string $logged = '';
    public array $secure_data = [];
    public int $user_id = 0;
    public string $username = '';
    public array $sUploadMessages = []; // php upload messages for superglobal $_FiLES      
    
    public static $instance;
 
    public static function getInstance()
    {
        if (null === static::$instance)
        {
            static::$instance = new static();
            static::$instance->initialize();
        }
 
        return static::$instance;
    }
    
    public function initialize() 
    {
        
        $this->database = LEPTON_database::getInstance();       
        $this->secure_data = array('username','action','log_text');
        $this->log_table = TABLE_PREFIX.'log';
        if(!isset($_SESSION['USER_ID']))
        {
            $this->user_id = -99;
            $this->username = 'LEPTON cms';         
        }
        else
        {
            $this->user_id = $_SESSION['USER_ID'];
            $this->username = $_SESSION['USERNAME'];        
        }
 
        date_default_timezone_set('Europe/London');     // mysql always uses UTC/0 in standard
        $this->logged = date('Y-m-d H:i:s',time());
        
        global $MESSAGE;
        $this->sUploadMessages = [
            0 => $MESSAGE['UPLOAD_ERR_OK'],
            1 => $MESSAGE['UPLOAD_ERR_INI_SIZE'],
            2 => $MESSAGE['UPLOAD_ERR_FORM_SIZE'],
            3 => $MESSAGE['UPLOAD_ERR_PARTIAL'],
            4 => $MESSAGE['UPLOAD_ERR_NO_FILE'],
            5 => $MESSAGE['unknown_upload_error'],
            6 => $MESSAGE['UPLOAD_ERR_NO_TMP_DIR'],
            7 => $MESSAGE['UPLOAD_ERR_CANT_WRITE'],
            8 => $MESSAGE['UPLOAD_ERR_EXTENSION'],
        ];      
        
    }
    
    
    public function insert_entry( $action = 0, $log_text = 0 ) 
    {
 
        $all_values = array (
            'id'=> NULL,
            'logged'    => $this->logged,
            'user_id'   => $this->user_id,
            'username'  => $this->username,
            'action'    => $action,
            'log_text'  => $log_text
        );
            
        $result = $this->database->build_and_execute( 'INSERT', $this->log_table, $all_values, '');
 
        if($result === false) {
            echo LEPTON_tools::display($this->database->get_error(),'pre','ui red message');
        }
 
        $latest_id = $this->database->get_one("SELECT LAST_INSERT_ID() FROM ".$this->log_table." ");
        if($latest_id > 99900)
        {
            echo LEPTON_tools::display('Please contact your admin: log-table is running full','pre','ui red message');
        }
        
        return $result;
    }
    
    
    public function display_entry( $start = 1, $end = 100000 ) 
    {
        
        $entries = array();
        $this->database->execute_query(
            "SELECT * FROM ".$this->log_table." WHERE id BETWEEN ".$start." AND ".$end." ",
            true,
            $entries,
            true
        ); 
 
        return $entries;    
    }   
    
    public function insert_secure_entry( $action = 0, $log_text = 0 ) 
    {
        $all_values = array (
            'id'=> NULL,
            'logged'    => $this->logged,
            'user_id'    => $this->user_id,
            'username'    => $this->username,
            'action'    => $action,
            'log_text'    => $log_text
        );
            
        $result = $this->database->secure_build_and_execute( 'INSERT', $this->log_table, $all_values, '', $this->secure_data);            
    
        if($result === false) {
            echo LEPTON_tools::display($this->database->get_error(),'pre','ui red message');
        }
 
        $latest_id = $this->database->get_one("SELECT LAST_INSERT_ID() FROM ".$this->log_table." ");
        if($latest_id > 99900) {
            echo LEPTON_tools::display('Please contact your admin: log-table is running full','pre','ui red message');
        }
 
        return $result;
    }
 
    public function display_secure_entry( $start = 1, $end = 100000 ) 
    {
        
        $entries = array();
        $this->database->secure_execute_query(
            "SELECT * FROM ".$this->log_table." WHERE id BETWEEN ".$start." AND ".$end." ",
            true,
            $entries,
            true,
            $this->secure_data
        ); 
 
        return $entries;    
    }
    
    public function check_entry() 
    {
        $temp = array();
        $this->database->execute_query(
            "SELECT * FROM ".$this->log_table,
            true,
            $temp,
            true
        ); 
        
        $entries = array();
        foreach($temp as $entry)
        {
            if($entry['logged'] != $entry['check'] )
            {
                $entries[] = array(
                                    'id' => $entry['id'],
                                    'user_id' => $entry['user_id'],
                                    'logged' => $entry['logged'],
                                    'check' => $entry['check'],
                                    'comment' => $entry['comment']
                                    );
            }
        }
        return $entries;    
    }       
}