构建安全护盾：HarmonyOS 应用的数据安全审计与日志管理实战

// LogManager.ts - 日志管理模块export class LogManager {    static log(action: string, details: any): void {        const logEntry = {            timestamp: new Date().toISOString(),            action,            details        };        console.info(`[AUDIT LOG]: ${JSON.stringify(logEntry)}`);        // 可将日志保存到本地文件或远程服务器    }}

import { LogManager } from './LogManager';
// 用户登录事件function userLogin(username: string): void {    // 模拟登录逻辑    const success = Math.random() > 0.5;
    // 审计日志记录    LogManager.log("User Login", {        username,        success,        timestamp: new Date().toISOString()    });
    if (success) {        console.info("Login successful");    } else {        console.warn("Login failed");    }}

// RealTimeLogger.ts - 实时日志管理模块export class RealTimeLogger {    private logs: Array<any> = [];
    log(level: string, message: string): void {        const logEntry = {            timestamp: new Date().toISOString(),            level,            message        };        this.logs.push(logEntry);        console.info(`[${level}]: ${message}`);    }
    queryLogs(level?: string): Array<any> {        if (level) {            return this.logs.filter(log => log.level === level);        }        return this.logs;    }
    clearLogs(): void {        this.logs = [];        console.info("Logs cleared");    }}

import { RealTimeLogger } from './RealTimeLogger';
const logger = new RealTimeLogger();
// 记录日志logger.log("INFO", "Application started");logger.log("ERROR", "Failed to fetch data");
// 查询日志console.log("Error Logs: ", logger.queryLogs("ERROR"));
// 清理日志logger.clearLogs();