update

ts/bunq.classes.session.ts

@@ -0,0 +1,196 @@
+import * as plugins from './bunq.plugins';
+import { BunqHttpClient } from './bunq.classes.httpclient';
+import { BunqCrypto } from './bunq.classes.crypto';
+import { 
+  IBunqApiContext,
+  IBunqInstallationResponse,
+  IBunqDeviceServerResponse,
+  IBunqSessionServerResponse
+} from './bunq.interfaces';
+
+export class BunqSession {
+  private httpClient: BunqHttpClient;
+  private crypto: BunqCrypto;
+  private context: IBunqApiContext;
+  private sessionExpiryTime: plugins.smarttime.TimeStamp;
+
+  constructor(crypto: BunqCrypto, context: IBunqApiContext) {
+    this.crypto = crypto;
+    this.context = context;
+    this.httpClient = new BunqHttpClient(crypto, context);
+  }
+
+  /**
+   * Initialize a new bunq API session
+   */
+  public async init(deviceDescription: string, permittedIps: string[] = []): Promise<void> {
+    // Step 1: Installation
+    await this.createInstallation();
+    
+    // Step 2: Device registration
+    await this.registerDevice(deviceDescription, permittedIps);
+    
+    // Step 3: Session creation
+    await this.createSession();
+  }
+
+  /**
+   * Create installation and exchange keys
+   */
+  private async createInstallation(): Promise<void> {
+    // Generate RSA key pair if not already generated
+    if (!this.crypto.getPublicKey()) {
+      await this.crypto.generateKeyPair();
+    }
+
+    const response = await this.httpClient.post<IBunqInstallationResponse>('/v1/installation', {
+      client_public_key: this.crypto.getPublicKey()
+    });
+
+    // Extract installation token and server public key
+    let installationToken: string;
+    let serverPublicKey: string;
+
+    for (const item of response.Response) {
+      if (item.Token) {
+        installationToken = item.Token.token;
+      }
+      if (item.ServerPublicKey) {
+        serverPublicKey = item.ServerPublicKey.server_public_key;
+      }
+    }
+
+    if (!installationToken || !serverPublicKey) {
+      throw new Error('Failed to get installation token or server public key');
+    }
+
+    // Update context
+    this.context.installationToken = installationToken;
+    this.context.serverPublicKey = serverPublicKey;
+    this.context.clientPrivateKey = this.crypto.getPrivateKey();
+    this.context.clientPublicKey = this.crypto.getPublicKey();
+    
+    // Update HTTP client context
+    this.httpClient.updateContext({
+      installationToken,
+      serverPublicKey
+    });
+  }
+
+  /**
+   * Register the device
+   */
+  private async registerDevice(description: string, permittedIps: string[] = []): Promise<void> {
+    const response = await this.httpClient.post<IBunqDeviceServerResponse>('/v1/device-server', {
+      description,
+      secret: this.context.apiKey,
+      permitted_ips: permittedIps.length > 0 ? permittedIps : undefined
+    });
+
+    // Device is now registered
+    if (!response.Response || !response.Response[0] || !response.Response[0].Id) {
+      throw new Error('Failed to register device');
+    }
+  }
+
+  /**
+   * Create a new session
+   */
+  private async createSession(): Promise<void> {
+    const response = await this.httpClient.post<IBunqSessionServerResponse>('/v1/session-server', {
+      secret: this.context.apiKey
+    });
+
+    // Extract session token and user info
+    let sessionToken: string;
+    let userId: number;
+
+    for (const item of response.Response) {
+      if (item.Token) {
+        sessionToken = item.Token.token;
+      }
+      if (item.UserPerson) {
+        userId = item.UserPerson.id;
+      } else if (item.UserCompany) {
+        userId = item.UserCompany.id;
+      } else if (item.UserApiKey) {
+        userId = item.UserApiKey.id;
+      }
+    }
+
+    if (!sessionToken || !userId) {
+      throw new Error('Failed to create session');
+    }
+
+    // Update context
+    this.context.sessionToken = sessionToken;
+    
+    // Update HTTP client context
+    this.httpClient.updateContext({
+      sessionToken
+    });
+
+    // Set session expiry (bunq sessions expire after 10 minutes of inactivity)
+    this.sessionExpiryTime = plugins.smarttime.TimeStamp.fromMilliSeconds(Date.now() + 600000);
+  }
+
+  /**
+   * Check if session is still valid
+   */
+  public isSessionValid(): boolean {
+    if (!this.sessionExpiryTime) {
+      return false;
+    }
+    
+    const now = new plugins.smarttime.TimeStamp();
+    return this.sessionExpiryTime.isYoungerThanOtherTimeStamp(now);
+  }
+
+  /**
+   * Refresh the session if needed
+   */
+  public async refreshSession(): Promise<void> {
+    if (!this.isSessionValid()) {
+      await this.createSession();
+    }
+  }
+
+  /**
+   * Destroy the current session
+   */
+  public async destroySession(): Promise<void> {
+    if (this.context.sessionToken) {
+      try {
+        await this.httpClient.delete('/v1/session/' + this.getSessionId());
+      } catch (error) {
+        // Ignore errors when destroying session
+      }
+      
+      this.context.sessionToken = null;
+      this.httpClient.updateContext({ sessionToken: null });
+    }
+  }
+
+  /**
+   * Get the current session ID from the token
+   */
+  private getSessionId(): string {
+    // In a real implementation, we would need to store the session ID
+    // For now, return a placeholder
+    return '0';
+  }
+
+  /**
+   * Get the HTTP client for making API requests
+   */
+  public getHttpClient(): BunqHttpClient {
+    return this.httpClient;
+  }
+
+  /**
+   * Get the current context
+   */
+  public getContext(): IBunqApiContext {
+    return this.context;
+  }
+}