feat(server): add authenticated remote access and desktop bootstrap

Adds cookie-based login with a bootstrap token flow for desktop apps, secures OpenCode instance traffic with per-instance Basic auth, and updates UI/plugin clients to use credentials.

packages/server/src/auth/manager.ts

@@ -0,0 +1,113 @@
+import type { FastifyReply, FastifyRequest } from "fastify"
+import path from "path"
+import type { Logger } from "../logger"
+import { AuthStore } from "./auth-store"
+import { TokenManager } from "./token-manager"
+import { SessionManager } from "./session-manager"
+import { isLoopbackAddress, parseCookies } from "./http-auth"
+
+export const BOOTSTRAP_TOKEN_STDOUT_PREFIX = "CODENOMAD_BOOTSTRAP_TOKEN:" as const
+export const DEFAULT_AUTH_USERNAME = "codenomad" as const
+export const DEFAULT_AUTH_COOKIE_NAME = "codenomad_session" as const
+
+export interface AuthManagerInit {
+  configPath: string
+  username: string
+  password?: string
+  generateToken: boolean
+}
+
+export class AuthManager {
+  private readonly authStore: AuthStore
+  private readonly tokenManager: TokenManager | null
+  private readonly sessionManager = new SessionManager()
+  private readonly cookieName = DEFAULT_AUTH_COOKIE_NAME
+
+  constructor(private readonly init: AuthManagerInit, private readonly logger: Logger) {
+    const authFilePath = resolveAuthFilePath(init.configPath)
+    this.authStore = new AuthStore(authFilePath, logger.child({ component: "auth" }))
+
+    // Startup: password comes from CLI/env, auth.json, or bootstrap-only mode.
+    this.authStore.ensureInitialized({
+      username: init.username,
+      password: init.password,
+      allowBootstrapWithoutPassword: init.generateToken,
+    })
+
+    this.tokenManager = init.generateToken ? new TokenManager(60_000) : null
+  }
+
+  getCookieName(): string {
+    return this.cookieName
+  }
+
+  isTokenBootstrapEnabled(): boolean {
+    return Boolean(this.tokenManager)
+  }
+
+  issueBootstrapToken(): string | null {
+    if (!this.tokenManager) return null
+    return this.tokenManager.generate()
+  }
+
+  consumeBootstrapToken(token: string): boolean {
+    if (!this.tokenManager) return false
+    return this.tokenManager.consume(token)
+  }
+
+  validateLogin(username: string, password: string): boolean {
+    return this.authStore.validateCredentials(username, password)
+  }
+
+  createSession(username: string) {
+    return this.sessionManager.createSession(username)
+  }
+
+  getStatus() {
+    return this.authStore.getStatus()
+  }
+
+  setPassword(password: string) {
+    return this.authStore.setPassword({ password, markUserProvided: true })
+  }
+
+  isLoopbackRequest(request: FastifyRequest): boolean {
+    return isLoopbackAddress(request.socket.remoteAddress)
+  }
+
+  getSessionFromRequest(request: FastifyRequest): { username: string; sessionId: string } | null {
+    const cookies = parseCookies(request.headers.cookie)
+    const sessionId = cookies[this.cookieName]
+    const session = this.sessionManager.getSession(sessionId)
+    if (!session) return null
+    return { username: session.username, sessionId: session.id }
+  }
+
+  setSessionCookie(reply: FastifyReply, sessionId: string) {
+    reply.header("Set-Cookie", buildSessionCookie(this.cookieName, sessionId))
+  }
+
+  clearSessionCookie(reply: FastifyReply) {
+    reply.header("Set-Cookie", buildSessionCookie(this.cookieName, "", { maxAgeSeconds: 0 }))
+  }
+}
+
+function resolveAuthFilePath(configPath: string) {
+  const resolvedConfigPath = resolvePath(configPath)
+  return path.join(path.dirname(resolvedConfigPath), "auth.json")
+}
+
+function resolvePath(filePath: string) {
+  if (filePath.startsWith("~/")) {
+    return path.join(process.env.HOME ?? "", filePath.slice(2))
+  }
+  return path.resolve(filePath)
+}
+
+function buildSessionCookie(name: string, value: string, options?: { maxAgeSeconds?: number }) {
+  const parts = [`${name}=${encodeURIComponent(value)}`, "HttpOnly", "Path=/", "SameSite=Lax"]
+  if (options?.maxAgeSeconds !== undefined) {
+    parts.push(`Max-Age=${Math.max(0, Math.floor(options.maxAgeSeconds))}`)
+  }
+  return parts.join("; ")
+}