mirror of
https://github.com/patdelphi/suanming.git
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� 核心增强: - 扩大出生日期支持范围(1800-2100年) - 增加闰年2月29日专项验证逻辑 - 精确的月份天数验证和边界检查 - 未来日期防护(允许当天,拒绝未来) �️ 安全性提升: - 新增时区格式验证(标准时区+UTC偏移) - IP地址验证(IPv4/IPv6支持) - 用户代理安全检查和长度限制 - 文件上传安全验证(类型、大小、文件名) � 边界情况处理: - 特殊日期验证(闰年逻辑) - 输入清理增强(XSS防护) - 请求头自动验证 - 恶意输入多重过滤 ✅ 测试验证: - 11个综合测试用例全部通过 - 覆盖正常输入、边界情况、恶意输入 - 闰年验证:2000年✅ 1900年❌ - XSS防护:脚本标签成功清理 � 功能完善: - 友好的错误提示信息 - 统一的验证接口 - Express中间件无缝集成 - 模块化设计便于扩展
657 lines
17 KiB
JavaScript
657 lines
17 KiB
JavaScript
// 输入验证工具类
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// 提供统一的输入验证和错误处理机制
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const { AppError } = require('../middleware/errorHandler.cjs');
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class InputValidator {
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constructor() {
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// 预定义的验证规则
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this.validationRules = {
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email: /^[^\s@]+@[^\s@]+\.[^\s@]+$/,
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date: /^\d{4}-\d{2}-\d{2}$/,
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time: /^\d{2}:\d{2}$/,
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chineseName: /^[\u4e00-\u9fa5]{1,10}$/,
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englishName: /^[a-zA-Z\s]{1,50}$/,
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mixedName: /^[\u4e00-\u9fa5a-zA-Z\s]{1,50}$/,
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userId: /^[a-zA-Z0-9_-]{1,50}$/,
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question: /^[\u4e00-\u9fa5a-zA-Z0-9\s\??!!,,。.;;::]{1,200}$/
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};
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// 错误消息模板
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this.errorMessages = {
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required: '${field}不能为空',
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invalid_format: '${field}格式不正确',
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invalid_length: '${field}长度应在${min}-${max}个字符之间',
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invalid_range: '${field}应在${min}-${max}之间',
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invalid_date: '${field}不是有效的日期',
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invalid_time: '${field}不是有效的时间',
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invalid_gender: '性别只能是male或female',
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invalid_analysis_type: '分析类型只能是bazi、ziwei或yijing',
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invalid_divination_method: '起卦方法只能是time、plum_blossom、coin或number'
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};
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}
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/**
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* 验证必填字段
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* @param {any} value 值
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* @param {string} fieldName 字段名
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateRequired(value, fieldName) {
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if (value === null || value === undefined || value === '') {
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throw new AppError(
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this.formatErrorMessage('required', { field: fieldName }),
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证字符串长度
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* @param {string} value 值
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* @param {string} fieldName 字段名
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* @param {number} min 最小长度
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* @param {number} max 最大长度
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateLength(value, fieldName, min = 0, max = Infinity) {
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if (typeof value !== 'string') {
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throw new AppError(
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`${fieldName}必须是字符串类型`,
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400,
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'VALIDATION_ERROR'
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);
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}
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if (value.length < min || value.length > max) {
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throw new AppError(
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this.formatErrorMessage('invalid_length', { field: fieldName, min, max }),
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证数值范围
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* @param {number} value 值
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* @param {string} fieldName 字段名
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* @param {number} min 最小值
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* @param {number} max 最大值
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateRange(value, fieldName, min, max) {
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const numValue = Number(value);
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if (isNaN(numValue)) {
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throw new AppError(
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`${fieldName}必须是有效的数字`,
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400,
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'VALIDATION_ERROR'
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);
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}
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if (numValue < min || numValue > max) {
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throw new AppError(
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this.formatErrorMessage('invalid_range', { field: fieldName, min, max }),
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证正则表达式
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* @param {string} value 值
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* @param {RegExp} pattern 正则表达式
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* @param {string} fieldName 字段名
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* @throws {AppError} 验证失败时抛出错误
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*/
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validatePattern(value, pattern, fieldName) {
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if (!pattern.test(value)) {
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throw new AppError(
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this.formatErrorMessage('invalid_format', { field: fieldName }),
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证邮箱格式
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* @param {string} email 邮箱
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateEmail(email) {
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this.validateRequired(email, '邮箱');
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this.validateLength(email, '邮箱', 5, 100);
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this.validatePattern(email, this.validationRules.email, '邮箱');
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}
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/**
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* 验证密码强度
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* @param {string} password 密码
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* @throws {AppError} 验证失败时抛出错误
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*/
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validatePassword(password) {
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this.validateRequired(password, '密码');
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this.validateLength(password, '密码', 6, 50);
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// 检查密码复杂度
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const hasLetter = /[a-zA-Z]/.test(password);
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const hasNumber = /\d/.test(password);
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if (!hasLetter || !hasNumber) {
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throw new AppError(
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'密码必须包含字母和数字',
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证姓名
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* @param {string} name 姓名
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateName(name) {
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this.validateRequired(name, '姓名');
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this.validateLength(name, '姓名', 1, 50);
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// 允许中文、英文和空格
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if (!this.validationRules.mixedName.test(name)) {
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throw new AppError(
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'姓名只能包含中文、英文字母和空格',
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证出生日期
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* @param {string} birthDate 出生日期 (YYYY-MM-DD)
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateBirthDate(birthDate) {
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this.validateRequired(birthDate, '出生日期');
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this.validatePattern(birthDate, this.validationRules.date, '出生日期');
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// 验证日期有效性
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const date = new Date(birthDate + 'T00:00:00.000Z');
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if (isNaN(date.getTime())) {
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throw new AppError(
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this.formatErrorMessage('invalid_date', { field: '出生日期' }),
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400,
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'VALIDATION_ERROR'
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);
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}
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// 验证日期范围(1800-2100)- 扩大范围支持更多历史日期
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const year = date.getFullYear();
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if (year < 1800 || year > 2100) {
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throw new AppError(
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'出生日期年份应在1800-2100年之间',
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400,
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'VALIDATION_ERROR'
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);
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}
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// 验证不能是未来日期(允许今天)
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const today = new Date();
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today.setHours(23, 59, 59, 999); // 设置为今天的最后一刻
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if (date > today) {
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throw new AppError(
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'出生日期不能是未来日期',
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400,
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'VALIDATION_ERROR'
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);
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}
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// 验证月份和日期的合理性
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const [yearStr, monthStr, dayStr] = birthDate.split('-');
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const month = parseInt(monthStr, 10);
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const day = parseInt(dayStr, 10);
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if (month < 1 || month > 12) {
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throw new AppError(
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'月份应在1-12之间',
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400,
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'VALIDATION_ERROR'
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);
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}
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// 验证每月的天数
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const daysInMonth = new Date(year, month, 0).getDate();
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if (day < 1 || day > daysInMonth) {
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throw new AppError(
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`${year}年${month}月只有${daysInMonth}天`,
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400,
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'VALIDATION_ERROR'
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);
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}
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// 验证特殊日期(如闰年)
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this.validateSpecialDates(birthDate);
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}
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/**
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* 验证出生时间
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* @param {string} birthTime 出生时间 (HH:MM)
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateBirthTime(birthTime) {
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if (!birthTime) return; // 出生时间是可选的
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this.validatePattern(birthTime, this.validationRules.time, '出生时间');
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const [hour, minute] = birthTime.split(':').map(Number);
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if (hour < 0 || hour > 23) {
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throw new AppError(
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'小时应在0-23之间',
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400,
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'VALIDATION_ERROR'
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);
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}
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if (minute < 0 || minute > 59) {
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throw new AppError(
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'分钟应在0-59之间',
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证性别
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* @param {string} gender 性别
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateGender(gender) {
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if (!gender) return; // 性别是可选的
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const validGenders = ['male', 'female', '男', '女'];
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if (!validGenders.includes(gender)) {
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throw new AppError(
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this.formatErrorMessage('invalid_gender'),
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证占卜问题
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* @param {string} question 问题
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateQuestion(question) {
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this.validateRequired(question, '占卜问题');
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this.validateLength(question, '占卜问题', 2, 200);
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// 检查是否包含有效字符
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if (!this.validationRules.question.test(question)) {
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throw new AppError(
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'占卜问题包含无效字符',
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证分析类型
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* @param {string} analysisType 分析类型
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateAnalysisType(analysisType) {
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const validTypes = ['bazi', 'ziwei', 'yijing'];
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if (!validTypes.includes(analysisType)) {
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throw new AppError(
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this.formatErrorMessage('invalid_analysis_type'),
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证起卦方法
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* @param {string} method 起卦方法
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateDivinationMethod(method) {
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if (!method) return; // 起卦方法是可选的
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const validMethods = ['time', 'plum_blossom', 'coin', 'number'];
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if (!validMethods.includes(method)) {
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throw new AppError(
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this.formatErrorMessage('invalid_divination_method'),
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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/**
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* 验证八字分析数据
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* @param {Object} birthData 出生数据
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateBaziData(birthData) {
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if (!birthData || typeof birthData !== 'object') {
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throw new AppError(
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'出生数据不能为空',
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400,
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'VALIDATION_ERROR'
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);
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}
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this.validateName(birthData.name);
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this.validateBirthDate(birthData.birth_date);
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this.validateBirthTime(birthData.birth_time);
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this.validateGender(birthData.gender);
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// 验证出生地点(可选)
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if (birthData.birth_place) {
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this.validateLength(birthData.birth_place, '出生地点', 1, 100);
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}
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}
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/**
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* 验证易经分析数据
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* @param {Object} yijingData 易经数据
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateYijingData(yijingData) {
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if (!yijingData || typeof yijingData !== 'object') {
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throw new AppError(
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'易经数据不能为空',
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400,
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'VALIDATION_ERROR'
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);
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}
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this.validateQuestion(yijingData.question);
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this.validateDivinationMethod(yijingData.divination_method);
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// 验证时区信息(可选)
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if (yijingData.user_timezone) {
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this.validateLength(yijingData.user_timezone, '用户时区', 3, 50);
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}
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// 验证当地时间(可选)
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if (yijingData.local_time) {
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const localTime = new Date(yijingData.local_time);
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if (isNaN(localTime.getTime())) {
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throw new AppError(
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'当地时间格式不正确',
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400,
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'VALIDATION_ERROR'
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);
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}
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}
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}
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/**
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* 验证分页参数
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* @param {Object} params 分页参数
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* @throws {AppError} 验证失败时抛出错误
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*/
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validatePaginationParams(params) {
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if (params.page !== undefined) {
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this.validateRange(params.page, '页码', 1, 1000);
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}
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if (params.limit !== undefined) {
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this.validateRange(params.limit, '每页数量', 1, 100);
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}
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}
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/**
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* 安全地清理输入数据
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* @param {string} input 输入数据
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* @returns {string} 清理后的数据
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*/
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sanitizeInput(input) {
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if (typeof input !== 'string') {
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return input;
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}
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// 移除潜在的危险字符
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return input
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.replace(/<script[^>]*>.*?<\/script>/gi, '') // 移除script标签
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.replace(/<[^>]*>/g, '') // 移除HTML标签
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.replace(/javascript:/gi, '') // 移除javascript协议
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.replace(/on\w+\s*=/gi, '') // 移除事件处理器
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.trim();
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}
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/**
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* 批量清理对象中的字符串字段
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* @param {Object} obj 对象
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* @returns {Object} 清理后的对象
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*/
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sanitizeObject(obj) {
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if (!obj || typeof obj !== 'object') {
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return obj;
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}
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const sanitized = {};
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for (const [key, value] of Object.entries(obj)) {
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if (typeof value === 'string') {
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sanitized[key] = this.sanitizeInput(value);
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} else if (typeof value === 'object' && value !== null) {
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sanitized[key] = this.sanitizeObject(value);
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} else {
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sanitized[key] = value;
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}
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}
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return sanitized;
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}
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/**
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* 格式化错误消息
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* @param {string} template 消息模板
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* @param {Object} params 参数
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* @returns {string} 格式化后的消息
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*/
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formatErrorMessage(template, params = {}) {
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let message = this.errorMessages[template] || template;
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for (const [key, value] of Object.entries(params)) {
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message = message.replace(new RegExp(`\\$\\{${key}\\}`, 'g'), value);
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}
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return message;
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}
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/**
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* 验证特殊日期(如闰年2月29日)
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* @param {string} birthDate 出生日期
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* @throws {AppError} 验证失败时抛出错误
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*/
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validateSpecialDates(birthDate) {
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const [yearStr, monthStr, dayStr] = birthDate.split('-');
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const year = parseInt(yearStr, 10);
|
||
const month = parseInt(monthStr, 10);
|
||
const day = parseInt(dayStr, 10);
|
||
|
||
// 验证闰年2月29日
|
||
if (month === 2 && day === 29) {
|
||
const isLeapYear = (year % 4 === 0 && year % 100 !== 0) || (year % 400 === 0);
|
||
if (!isLeapYear) {
|
||
throw new AppError(
|
||
`${year}年不是闰年,2月没有29日`,
|
||
400,
|
||
'VALIDATION_ERROR'
|
||
);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 验证时区信息
|
||
* @param {string} timezone 时区
|
||
* @throws {AppError} 验证失败时抛出错误
|
||
*/
|
||
validateTimezone(timezone) {
|
||
if (!timezone) return;
|
||
|
||
const validTimezones = [
|
||
'Asia/Shanghai', 'Asia/Hong_Kong', 'Asia/Taipei', 'Asia/Tokyo',
|
||
'America/New_York', 'America/Los_Angeles', 'Europe/London',
|
||
'UTC', 'GMT', 'CST', 'EST', 'PST'
|
||
];
|
||
|
||
// 支持UTC偏移格式 (+08:00, -05:00等)
|
||
const utcOffsetPattern = /^[+-]\d{2}:\d{2}$/;
|
||
|
||
if (!validTimezones.includes(timezone) && !utcOffsetPattern.test(timezone)) {
|
||
throw new AppError(
|
||
'时区格式不正确,请使用标准时区名称或UTC偏移格式',
|
||
400,
|
||
'VALIDATION_ERROR'
|
||
);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 验证IP地址
|
||
* @param {string} ip IP地址
|
||
* @throws {AppError} 验证失败时抛出错误
|
||
*/
|
||
validateIP(ip) {
|
||
if (!ip) return;
|
||
|
||
const ipv4Pattern = /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
|
||
const ipv6Pattern = /^(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$/;
|
||
|
||
if (!ipv4Pattern.test(ip) && !ipv6Pattern.test(ip)) {
|
||
throw new AppError(
|
||
'IP地址格式不正确',
|
||
400,
|
||
'VALIDATION_ERROR'
|
||
);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 验证用户代理字符串
|
||
* @param {string} userAgent 用户代理
|
||
* @throws {AppError} 验证失败时抛出错误
|
||
*/
|
||
validateUserAgent(userAgent) {
|
||
if (!userAgent) return;
|
||
|
||
// 检查用户代理长度和基本格式
|
||
if (userAgent.length > 500) {
|
||
throw new AppError(
|
||
'用户代理字符串过长',
|
||
400,
|
||
'VALIDATION_ERROR'
|
||
);
|
||
}
|
||
|
||
// 检查是否包含可疑内容
|
||
const suspiciousPatterns = [
|
||
/<script/i, /javascript:/i, /vbscript:/i, /onload=/i, /onerror=/i
|
||
];
|
||
|
||
for (const pattern of suspiciousPatterns) {
|
||
if (pattern.test(userAgent)) {
|
||
throw new AppError(
|
||
'用户代理包含可疑内容',
|
||
400,
|
||
'VALIDATION_ERROR'
|
||
);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 验证文件上传
|
||
* @param {Object} file 文件对象
|
||
* @param {Array} allowedTypes 允许的文件类型
|
||
* @param {number} maxSize 最大文件大小(字节)
|
||
* @throws {AppError} 验证失败时抛出错误
|
||
*/
|
||
validateFileUpload(file, allowedTypes = [], maxSize = 5 * 1024 * 1024) {
|
||
if (!file) {
|
||
throw new AppError(
|
||
'文件不能为空',
|
||
400,
|
||
'VALIDATION_ERROR'
|
||
);
|
||
}
|
||
|
||
// 验证文件大小
|
||
if (file.size > maxSize) {
|
||
throw new AppError(
|
||
`文件大小不能超过${Math.round(maxSize / 1024 / 1024)}MB`,
|
||
400,
|
||
'VALIDATION_ERROR'
|
||
);
|
||
}
|
||
|
||
// 验证文件类型
|
||
if (allowedTypes.length > 0 && !allowedTypes.includes(file.mimetype)) {
|
||
throw new AppError(
|
||
`文件类型不支持,只允许:${allowedTypes.join(', ')}`,
|
||
400,
|
||
'VALIDATION_ERROR'
|
||
);
|
||
}
|
||
|
||
// 验证文件名
|
||
if (file.originalname) {
|
||
const dangerousChars = /[<>:"/\\|?*]/;
|
||
if (dangerousChars.test(file.originalname)) {
|
||
throw new AppError(
|
||
'文件名包含非法字符',
|
||
400,
|
||
'VALIDATION_ERROR'
|
||
);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 创建验证中间件
|
||
* @param {Function} validationFn 验证函数
|
||
* @returns {Function} Express中间件
|
||
*/
|
||
createValidationMiddleware(validationFn) {
|
||
return (req, res, next) => {
|
||
try {
|
||
// 验证请求头信息
|
||
this.validateUserAgent(req.get('User-Agent'));
|
||
this.validateIP(req.ip || req.connection.remoteAddress);
|
||
|
||
// 清理输入数据
|
||
req.body = this.sanitizeObject(req.body);
|
||
req.query = this.sanitizeObject(req.query);
|
||
req.params = this.sanitizeObject(req.params);
|
||
|
||
// 执行验证
|
||
validationFn.call(this, req.body, req.query, req.params);
|
||
|
||
next();
|
||
} catch (error) {
|
||
next(error);
|
||
}
|
||
};
|
||
}
|
||
}
|
||
|
||
// 创建单例实例
|
||
const inputValidator = new InputValidator();
|
||
|
||
module.exports = {
|
||
InputValidator,
|
||
inputValidator
|
||
}; |