delon-auth-authentication-authorization

Files (2)

• SKILL.md
• skill-report.json

SKILL.md (first lines)

# @delon/auth Authentication & Authorization Skill

This skill helps implement authentication and authorization using @delon/auth library.

## Core Principles

### Token Management
- **JWT Storage**: Secure token storage using DA_SERVICE_TOKEN
- **Auto Refresh**: Automatic token renewal before expiration
- **Interceptors**: Automatic token injection in HTTP requests
- **Logout**: Clean token removal and session cleanup

### Authorization
- **RBAC**: Role-based access control
- **Permissions**: Fine-grained permission checking
- **Guards**: Route protection with role/permission checks
- **ACL Integration**: Works with @delon/acl for UI-level controls

## Configuration

### App Config

```typescript
// src/app/app.config.ts
import { ApplicationConfig } from '@angular/core';
import { provideDelonAuth, DA_SERVICE_TOKEN, ITokenService } from '@delon/auth';
import { JWTTokenModel } from '@delon/auth';

export const appConfig: ApplicationConfig = {
  providers: [
    provideDelonAuth({
      token_send_key: 'Authorization',
      token_send_template: 'Bearer ${token}',
      token_send_place: 'header',
      login_url: '/passport/login',
      ignores: [/\/login/, /assets\//],
      allow_anonymous_key: 'allow_anonymous',
      executeOtherInterceptors: true,
      refreshTime: 3000, // Refresh token check interval (ms)
      refreshOffset: 6000 // Refresh token before expiration (ms)
    })
  ]
};
```

### Token Model

```typescript
// src/app/core/models/auth-token.model.ts
import { JWTTokenModel } from '@delon/auth';

export interface AuthTokenModel extends JWTTokenModel {
  token: string;
  uid: string;
  email: string;
  displayName: string;
  role: string;
  permissions: string[];
  exp: number;
}
```

## Authentication Service

```typescript
// src/app/core/services/auth.service.ts
import { Injectable, inject } from '@angular/core';
import { Router } from '@angular/router';
import { DA_SERVICE_TOKEN, ITokenService } from '@delon/auth';
import { Auth, signInWithEmailAndPassword, signOut, User } from '@angular/fire/auth';
import { AuthTokenModel } from '@core/models/auth-token.model';
import { signal, computed } from '@angular/core';

@Injectable({ providedIn: 'root' })
export class AuthService {
  private auth = inject(Auth);
  private tokenService = inject<ITokenService>(DA_SERVICE_TOKEN);
  private router = inject(Router);
  
  // State
  private currentUser = signal<User | null>(null);
  private authToken = signal<AuthTokenModel | null>(null);
  
  // Computed
  isAuthenticated = computed(() => this.tokenService.get()?.token != null);
  userRole = computed(() => this.authToken()?.role);
  userPermissions = computed(() => this.authToken()?.permissions || []);
  
  constructor() {
    // Listen to Firebase Auth state
    this.auth.onAuthStateChanged(async (user) => {
      this.currentUser.set(user);
      if (user) {
        await this.refreshToken();
      } else {
        this.clearSession();
      }
    });
  }
  
  /**
   * Login with email and password
   */
  async login(email: string, password: string): Promise<void> {
    try {
      const credential = await signInWithEmailAndPassword(this.auth, email, password);
      const token = await credential.user.getIdToken();
      const tokenData = await this.parseToken(token);
      
      // Store token in @delon/auth
      this.tokenService.set(tokenData);
      this.authToken.set(tokenData);
      
      // Navigate to dashboard
      await this.router.navigateByUrl('/dashboard');
    } catch (error) {
      console.error('Login failed:', error);
      throw error;
    }

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