74 lines
2.5 KiB
JavaScript
74 lines
2.5 KiB
JavaScript
// middleware/permissions.js —— RBAC 权限检查 + 数据范围过滤
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/**
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* 检查当前用户是否拥有指定权限
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* @param {string} resource - 资源名，如 'customer'
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* @param {string} action - 操作名，如 'read'
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*/
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function checkPermission(resource, action) {
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return (req, res, next) => {
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const permName = `${resource}:${action}`
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if (!req.user || !req.user.permissions || !req.user.permissions.includes(permName)) {
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return res.status(403).json({ code: 403, message: '权限不足' })
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}
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next()
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}
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}
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/**
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* 根据当前用户角色，返回该资源的数据范围过滤条件
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* @param {object} user - req.user（含 roleName, id, department）
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* @param {string} resource - 资源名：customers / contracts / after_sales / products / suppliers / employees / users
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* @returns {{ where?: string, values?: any[], deny?: boolean }}
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* - where + values：追加到 SQL WHERE 子句的条件
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* - deny：true 表示该角色无权访问此资源
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*/
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function getDataScope(user, resource) {
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const { roleName, id: userId, department } = user
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// admin 和 general_manager（总经理）：全量数据，无限制
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if (roleName === 'admin' || roleName === 'general_manager') {
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return {}
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}
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switch (resource) {
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case 'customers':
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if (roleName === 'finance') return {}
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return { where: 'responsible_user_id = ?', values: [userId] }
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case 'contracts':
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if (roleName === 'finance') return {}
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if (roleName === 'procurement_manager') {
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return { where: 'c.type = ?', values: ['supply'] }
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}
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if (roleName === 'franchise_manager' || roleName === 'operations_manager') {
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return { where: 'c.responsible_user_id = ? AND c.type = ?', values: [userId, 'franchise'] }
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}
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return {}
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case 'after_sales':
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if (roleName === 'finance') return {}
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if (roleName === 'operations_manager') {
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return { where: 'responsible_user_id = ?', values: [userId], tableAlias: 'a' }
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}
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// franchise_manager 和 procurement_manager 无权限（checkPermission 已拦截）
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return {}
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case 'employees':
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if (roleName === 'finance') return {}
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// 所有非管理员/总经理角色：只能看自己部门的员工
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return { where: 'department = ?', values: [department] }
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case 'products':
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case 'suppliers':
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case 'users':
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// 无数据范围过滤，仅靠 checkPermission 控制访问
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return {}
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default:
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return {}
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}
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}
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module.exports = { checkPermission, getDataScope }
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