[Init] Initial commit - NetMesh terminal manager

domain/portForwardHostKey.ts

@@ -0,0 +1,54 @@
+import type { KnownHost } from "./models";
+import { createKnownHostFromHostKeyInfo } from "./knownHosts";
+import {
+  toHostKeyInfo,
+  type HostKeyInfo,
+  type HostKeyVerificationRequest,
+} from "./hostKey";
+
+export type { HostKeyInfo, HostKeyVerificationRequest };
+
+export const isPortForwardHostKeySessionId = (sessionId?: string): boolean => {
+  return typeof sessionId === "string" && sessionId.startsWith("pf-");
+};
+
+export type PortForwardHostKeyRequest = HostKeyVerificationRequest & {
+  requestId: string;
+  sessionId?: string;
+};
+
+export interface PendingPortForwardHostKeyVerification {
+  requestId: string;
+  hostKeyInfo: HostKeyInfo;
+}
+
+export const toPendingPortForwardHostKeyVerification = (
+  request: PortForwardHostKeyRequest,
+): PendingPortForwardHostKeyVerification | null => {
+  if (!isPortForwardHostKeySessionId(request.sessionId)) return null;
+  return {
+    requestId: request.requestId,
+    hostKeyInfo: toHostKeyInfo(request),
+  };
+};
+
+export const enqueuePortForwardHostKeyVerification = (
+  queue: PendingPortForwardHostKeyVerification[],
+  pending: PendingPortForwardHostKeyVerification,
+): PendingPortForwardHostKeyVerification[] => [...queue, pending];
+
+export const removePortForwardHostKeyVerification = (
+  queue: PendingPortForwardHostKeyVerification[],
+  requestId: string,
+): PendingPortForwardHostKeyVerification[] => {
+  if (queue[0]?.requestId === requestId) {
+    return queue.slice(1);
+  }
+  return queue.filter((pending) => pending.requestId !== requestId);
+};
+
+export const createKnownHostFromPortForwardHostKeyInfo = (
+  hostKeyInfo: HostKeyInfo,
+  now = Date.now(),
+  idSuffix = Math.random().toString(36).slice(2, 11),
+): KnownHost => createKnownHostFromHostKeyInfo(hostKeyInfo, { now, idSuffix });