MCP REST Server

import axios, { AxiosInstance } from "axios"; import { AuthConfig, AuthState } from "./types.js"; export class AuthManager { private authState: AuthState = { isAuthenticated: false }; private config: AuthConfig; private httpClient: AxiosInstance; constructor(config: AuthConfig, baseUrl: string, timeout: number = 30000) { this.config = config; this.httpClient = axios.create({ baseURL: baseUrl, timeout, }); } async authenticate(): Promise<void> { if (this.config.type === "token") { await this.authenticateWithToken(); } else if (this.config.type === "login") { await this.authenticateWithLogin(); } } private async authenticateWithToken(): Promise<void> { if (this.config.type !== "token") return; this.authState = { token: this.config.token, isAuthenticated: true, }; } private async authenticateWithLogin(): Promise<void> { if (this.config.type !== "login") return; try { const response = await this.httpClient.post(this.config.loginEndpoint, { username: this.config.username, password: this.config.password, }); const token = response.data[this.config.tokenField]; if (!token) { throw new Error( `Token field '${this.config.tokenField}' not found in login response` ); } this.authState = { token, isAuthenticated: true, // Set expiration if provided in response expiresAt: response.data.expires_at ? new Date(response.data.expires_at) : undefined, }; } catch (error) { this.authState = { isAuthenticated: false }; throw new Error( `Authentication failed: ${ error instanceof Error ? error.message : "Unknown error" }` ); } } async ensureAuthenticated(): Promise<void> { if (!this.isAuthenticated()) { await this.authenticate(); } } isAuthenticated(): boolean { if (!this.authState.isAuthenticated) { return false; } // Check if token is expired if (this.authState.expiresAt && this.authState.expiresAt <= new Date()) { this.authState.isAuthenticated = false; return false; } return true; } getAuthHeaders(): Record<string, string> { if (!this.authState.token) { return {}; } return { Authorization: `Bearer ${this.authState.token}`, }; } getToken(): string | undefined { return this.authState.token; } logout(): void { this.authState = { isAuthenticated: false }; } }