feat: 改进 OAuth 参数存储和处理机制，优化跨页面参数传递

src/actions/user-authorize.ts

@@ -18,13 +18,22 @@ export async function signIn(data: Record<string, any>) {
     redirect("/dashboard");
   }
 
-  // 检查是否是 OAuth 流程
+  // 检查是否有保存的 OAuth 参数
+  const cookieStore = cookies();
+  const savedOAuthParams = cookieStore.get("oauth_params");
+
+  if (savedOAuthParams) {
+    // 清除保存的参数
+    cookieStore.delete("oauth_params");
+    // 重定向到 OAuth 授权页面
+    redirect(`/oauth/authorize?${savedOAuthParams.value}`);
+  }
+
+  // 如果没有 OAuth 参数，尝试解析 return_sso_url
   try {
     const returnUrl = new URL(returnSsoUrl);
-    const isOAuthFlow = returnUrl.pathname.startsWith("/oauth/authorize");
-
-    if (isOAuthFlow) {
-      // 如果是 OAuth 流程，继续授权流程
+    if (returnUrl.pathname === "/authorize") {
+      // 如果是授权页面，直接重定向
       redirect(returnSsoUrl);
     }
   } catch (error) {

src/app/api/auth/q58/route.ts

@@ -33,9 +33,12 @@ export async function POST(req: Request) {
     ? `${hostUrl}/authorize?${oauthParams}` // OAuth流程：回到授权页面
     : `${hostUrl}/dashboard`; // 普通登录：直接到仪表板
 
-  const sso = btoa(
-    `nonce=${nonce}&return_sso_url=${encodeURIComponent(return_url)}`,
-  );
+  // 构建 SSO 参数
+  const ssoParams = new URLSearchParams();
+  ssoParams.set("nonce", nonce);
+  ssoParams.set("return_sso_url", return_url);
+
+  const sso = btoa(ssoParams.toString());
   const sig = hmacSHA256(sso, clientSecret).toString(Hex);
 
   cookies().set(AUTH_NONCE, nonce, { maxAge: 60 * 10 });

src/components/auth/user-auth-form.tsx

@@ -21,13 +21,21 @@ export function UserAuthForm({
   const { toast } = useToast();
   const searchParams = useSearchParams();
 
+  // 在组件挂载时保存 OAuth 参数
+  React.useEffect(() => {
+    if (searchParams?.toString()) {
+      localStorage.setItem("oauth_params", searchParams.toString());
+    }
+  }, [searchParams]);
+
   const signIn = () => {
     React.startTransition(async () => {
       try {
         // 构建请求体，包含 OAuth 参数
         const body: Record<string, any> = {};
-        if (searchParams?.toString()) {
-          body.oauth_params = searchParams.toString();
+        const savedParams = localStorage.getItem("oauth_params");
+        if (savedParams) {
+          body.oauth_params = savedParams;
         }
 
         const response = await fetch("/api/auth/q58", {