优化

src/api/crossTabRefresh.ts

@@ -0,0 +1,37 @@
+export interface CrossTabRefreshOptions<T> {
+  lockName: string
+  observedRefreshToken: string
+  currentRefreshToken: () => string
+  reuseCurrentSession: () => Promise<T>
+  refresh: (refreshToken: string) => Promise<T>
+}
+
+export async function coordinateCrossTabRefresh<T>(options: CrossTabRefreshOptions<T>): Promise<T> {
+  const run = async () => {
+    const currentRefreshToken = options.currentRefreshToken()
+    if (currentRefreshToken && currentRefreshToken !== options.observedRefreshToken) {
+      return options.reuseCurrentSession()
+    }
+    return options.refresh(currentRefreshToken || options.observedRefreshToken)
+  }
+
+  if (typeof navigator === 'undefined' || !navigator.locks) {
+    try {
+      return await run()
+    } catch (error) {
+      if (!options.currentRefreshToken()) throw error
+      // Web Locks requires a secure context. On plain HTTP, briefly allow another tab's
+      // successful rotation to reach shared storage before treating this session as expired.
+      for (let attempt = 0; attempt < 20; attempt += 1) {
+        await new Promise((resolve) => setTimeout(resolve, 50))
+        const currentRefreshToken = options.currentRefreshToken()
+        if (!currentRefreshToken) throw error
+        if (currentRefreshToken && currentRefreshToken !== options.observedRefreshToken) {
+          return options.reuseCurrentSession()
+        }
+      }
+      throw error
+    }
+  }
+  return navigator.locks.request(options.lockName, run)
+}