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Role-Based Access Control (RBAC) Feature

Overview​

The Role-Based Access Control (RBAC) feature provides comprehensive user and role management capabilities for the DatomsDB system. This feature enables administrators to manage users, assign roles, and control permissions across the entire system.

Key Features​

1. User Management​

  • User Creation: Create new users with username, password, email, and role assignments
  • User Editing: Modify user information, change passwords, and update role assignments
  • User Status Management: Activate, deactivate, or suspend user accounts
  • User Deletion: Remove users from the system with proper confirmation
  • User List Display: View all users with their roles, status, and creation dates

2. Role Management​

  • Role Creation: Create new roles with unique IDs, names, and descriptions
  • Permission Assignment: Assign specific permissions to roles
  • Role Editing: Modify role information and permission assignments
  • Role Deletion: Remove roles from the system (with dependency checks)
  • Role Display: View all roles with their permissions and descriptions

3. Permission System​

  • Granular Permissions: Fine-grained control over system operations
  • Permission Categories: Organized permissions by functional areas
  • Dynamic Permission Loading: Real-time permission updates
  • Permission Validation: Server-side permission checking

Technical Implementation​

Frontend Architecture​

HTML Structure​

<!-- User Management Panel -->
<div id="users-panel" class="panel">
  <div class="tabs">
    <button class="tab-btn active" data-tab="users-list">用户列表</button>
    <button class="tab-btn" data-tab="create-user">创建用户</button>
    <button class="tab-btn" data-tab="roles-management">角色管理</button>
  </div>
  
  <!-- User List Tab -->
  <div id="users-list" class="tab-content active">
    <div class="card-header">
      <h3>用户列表</h3>
      <button id="refresh-users-btn" class="btn">刷新</button>
    </div>
    <div class="table-container">
      <table class="data-table" id="users-table">
        <!-- User data populated dynamically -->
      </table>
    </div>
  </div>
</div>

JavaScript Module (userManagement.js)​

const UserManagement = {
  currentUsers: [],
  currentRoles: [],
  availablePermissions: [],
  
  // Core initialization
  async init() {
    this.setupEventListeners();
    await this.loadUsers();
    await this.loadRoles();
    await this.loadPermissions();
  },
  
  // User CRUD operations
  async loadUsers() { /* Implementation */ },
  async createUser(userData) { /* Implementation */ },
  async updateUser(userId, userData) { /* Implementation */ },
  async deleteUser(userId) { /* Implementation */ },
  
  // Role management
  async loadRoles() { /* Implementation */ },
  async createRole(roleData) { /* Implementation */ },
  async updateRole(roleId, roleData) { /* Implementation */ },
  async deleteRole(roleId) { /* Implementation */ }
};

API Integration​

User Management Endpoints​

  • GET /api/users - List all users
  • POST /api/users - Create new user
  • PUT /api/users/:id - Update user
  • DELETE /api/users/:id - Delete user
  • GET /api/users/:id - Get user details

Role Management Endpoints​

  • GET /api/roles - List all roles
  • POST /api/roles - Create new role
  • PUT /api/roles/:id - Update role
  • DELETE /api/roles/:id - Delete role
  • GET /api/permissions - List available permissions

CSS Styling​

User Interface Components​

/* User Management Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Status and Role Badges */
.status-badge {
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.role-badge {
  background: #e3f2fd;
  color: #1565c0;
  padding: 4px 8px;
  border-radius: 4px;
}

User Interface Components​

1. User List Table​

  • Columns: Username, Role, Status, Created Date, Actions
  • Features: Sorting, filtering, pagination
  • Actions: Edit, Delete, Change Status

2. User Creation Form​

  • Fields: Username, Password, Email, Role Selection
  • Validation: Real-time form validation
  • Security: Password strength requirements

3. Role Management Cards​

  • Display: Role name, description, permissions
  • Actions: Edit, Delete, View Details
  • Permissions: Visual permission badges

4. Permission Selection​

  • Interface: Checkbox-based permission selection
  • Organization: Grouped by permission categories
  • Search: Filter permissions by name or category

Permission Categories​

System Administration​

  • manage_users - Create, edit, delete users
  • manage_roles_permissions - Manage roles and permissions
  • system_settings - Access system configuration

Data Asset Management​

  • view_data_assets - View data asset information
  • edit_data_assets - Modify data asset properties
  • delete_data_assets - Remove data assets
  • create_data_assets - Create new data assets

Data Operations​

  • query_data - Execute data queries
  • execute_transactions - Perform data transactions
  • backup_restore - Backup and restore operations

Access Control​

  • manage_api_keys - Generate and manage API keys
  • configure_access - Set up access controls
  • audit_logs - View system audit logs

Security Features​

1. Input Validation​

  • Client-side: Real-time form validation
  • Server-side: Comprehensive input sanitization
  • XSS Prevention: HTML encoding and CSP headers

2. Authentication Integration​

  • Token-based: JWT token authentication
  • Session Management: Secure session handling
  • Password Security: Bcrypt hashing

3. Authorization Checks​

  • Middleware: Permission checking middleware
  • API Protection: All endpoints protected by permissions
  • UI Controls: Permission-based UI element visibility

4. Audit Logging​

  • User Actions: Log all user management operations
  • Role Changes: Track role and permission modifications
  • Access Attempts: Monitor unauthorized access attempts

Error Handling​

HTTP Status Codes​

  • 200 - Success
  • 400 - Bad Request (validation errors)
  • 401 - Unauthorized (authentication required)
  • 403 - Forbidden (insufficient permissions)
  • 404 - Not Found (user/role not found)
  • 409 - Conflict (duplicate username/role)
  • 500 - Internal Server Error

User Feedback​

// Error message display
function showError(message) {
  const errorDiv = document.getElementById('error-message');
  errorDiv.textContent = message;
  errorDiv.classList.remove('hidden');
}

// Success message display
function showSuccess(message) {
  const successDiv = document.getElementById('success-message');
  successDiv.textContent = message;
  successDiv.classList.remove('hidden');
}

Browser Compatibility​

Supported Browsers​

  • Chrome: 80+
  • Firefox: 75+
  • Safari: 13+
  • Edge: 80+

Progressive Enhancement​

  • Core Functionality: Works without JavaScript
  • Enhanced Features: JavaScript-enabled improvements
  • Responsive Design: Mobile and tablet support

Performance Considerations​

1. Data Loading​

  • Pagination: Large user lists paginated
  • Lazy Loading: Load data on demand
  • Caching: Client-side data caching

2. UI Optimization​

  • Virtual Scrolling: For large datasets
  • Debounced Search: Optimized search functionality
  • Minimal DOM Updates: Efficient rendering

Future Enhancements​

1. Advanced Features​

  • Bulk Operations: Multi-user management
  • Advanced Search: Complex filtering options
  • Export/Import: User and role data export

2. Integration Features​

  • LDAP Integration: External authentication
  • SSO Support: Single sign-on capabilities
  • API Rate Limiting: Enhanced security controls

3. Monitoring and Analytics​

  • Usage Analytics: User activity tracking
  • Performance Metrics: System performance monitoring
  • Security Dashboards: Security event visualization

Installation and Setup​

1. File Structure​

public/admin/
├── users-panel.html          # User management UI
├── js/
│   └── userManagement.js     # User management logic
└── css/
    └── admin.css             # RBAC styling (updated)

2. Dependencies​

  • Frontend: Vanilla JavaScript (ES6+)
  • Backend: Node.js with Express
  • Database: PostgreSQL for user/role storage

3. Configuration​

// API configuration
const API_CONFIG = {
  baseUrl: '/api',
  endpoints: {
    users: '/users',
    roles: '/roles',
    permissions: '/permissions'
  }
};

Testing​

1. Unit Tests​

  • User Management Functions: CRUD operations
  • Role Management Functions: Role operations
  • Permission Validation: Permission checking

2. Integration Tests​

  • API Integration: Backend API calls
  • UI Integration: User interface interactions
  • Security Tests: Permission enforcement

3. User Acceptance Tests​

  • Admin Workflows: Complete admin scenarios
  • Error Scenarios: Error handling validation
  • Performance Tests: Load and stress testing

Maintenance​

1. Regular Updates​

  • Security Patches: Keep dependencies updated
  • Feature Updates: Add new functionality
  • Bug Fixes: Address reported issues

2. Monitoring​

  • Error Tracking: Monitor application errors
  • Performance Monitoring: Track system performance
  • Security Monitoring: Watch for security events

3. Backup and Recovery​

  • Data Backup: Regular user/role data backups
  • Configuration Backup: System configuration backups
  • Disaster Recovery: Recovery procedures documentation
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最后由 jerry zhang 于 更新