116 lines
3.0 KiB
JavaScript
116 lines
3.0 KiB
JavaScript
/**
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* 认证工具 - 获取 MQTT 凭证
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*/
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const storage = require('./storage.js');
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/**
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* 生成 MQTT clientId
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* 格式：S&{设备编号}&{产品ID}&{用户ID}
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* @param {string} serialNumber - 设备编号
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* @param {number|string} productId - 产品ID
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* @param {number|string} userId - 用户ID
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* @returns {string}
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*/
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function generateClientId(serialNumber, productId, userId) {
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return `S&${serialNumber}&${productId}&${userId}`;
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}
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/**
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* 获取 MQTT 连接凭证
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* @param {string} serialNumber - 设备编号
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* @param {number|string} productId - 产品ID
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* @param {string} productSecret - 产品密钥
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* @returns {Object|null} { clientId, username, password }
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*/
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function getMqttCredentials(serialNumber, productId, productSecret) {
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const userInfo = storage.getUserInfo();
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if (!userInfo || !userInfo.userId) {
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console.error('[Auth] 未登录，无法获取 MQTT 凭证');
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return null;
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}
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const userId = userInfo.userId;
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const clientId = generateClientId(serialNumber, productId, userId);
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return {
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clientId: clientId,
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username: serialNumber,
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password: productSecret,
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};
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}
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/**
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* 从设备配置获取 MQTT 凭证
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* @param {Object} device - 设备配置对象
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* @returns {Object|null}
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*/
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function getMqttCredentialsFromDevice(device) {
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if (!device || !device.serialNumber || !device.productId || !device.productSecret) {
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console.error('[Auth] 设备配置不完整');
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return null;
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}
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return getMqttCredentials(device.serialNumber, device.productId, device.productSecret);
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}
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/**
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* 构建属性上报 Topic
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* 格式：/{productId}/{serialNumber}/property/post
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* @param {number|string} productId - 产品ID
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* @param {string} serialNumber - 设备编号
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* @returns {string}
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*/
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function buildPropertyPostTopic(productId, serialNumber) {
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return `/${productId}/${serialNumber}/property/post`;
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}
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/**
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* 构建功能下发 Topic
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* 格式：/{productId}/{serialNumber}/function/get
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* @param {number|string} productId - 产品ID
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* @param {string} serialNumber - 设备编号
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* @returns {string}
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*/
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function buildFunctionGetTopic(productId, serialNumber) {
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return `/${productId}/${serialNumber}/function/get`;
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}
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/**
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* 构建属性读取 Topic
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* 格式：/{productId}/{serialNumber}/property/get
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* @param {number|string} productId - 产品ID
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* @param {string} serialNumber - 设备编号
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* @returns {string}
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*/
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function buildPropertyGetTopic(productId, serialNumber) {
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return `/${productId}/${serialNumber}/property/get`;
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}
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/**
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* 检查登录状态
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* @returns {boolean}
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*/
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function checkLoginStatus() {
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const token = storage.getToken();
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const userInfo = storage.getUserInfo();
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return !!(token && userInfo && userInfo.userId);
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}
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/**
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* 获取当前用户ID
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* @returns {number|null}
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*/
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function getCurrentUserId() {
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const userInfo = storage.getUserInfo();
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return userInfo ? userInfo.userId : null;
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}
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module.exports = {
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generateClientId,
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getMqttCredentials,
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getMqttCredentialsFromDevice,
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buildPropertyPostTopic,
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buildFunctionGetTopic,
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buildPropertyGetTopic,
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checkLoginStatus,
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getCurrentUserId,
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}; |