feat: close #2192 use /list/models to get model ids

app/api/openai/[...path]/route.ts

@@ -1,3 +1,5 @@
+import { type OpenAIListModelResponse } from "@/app/client/platforms/openai";
+import { getServerSideConfig } from "@/app/config/server";
 import { OpenaiPath } from "@/app/constant";
 import { prettyObject } from "@/app/utils/format";
 import { NextRequest, NextResponse } from "next/server";
@@ -6,6 +8,18 @@ import { requestOpenai } from "../../common";
 
 const ALLOWD_PATH = new Set(Object.values(OpenaiPath));
 
+function getModels(remoteModelRes: OpenAIListModelResponse) {
+  const config = getServerSideConfig();
+
+  if (config.disableGPT4) {
+    remoteModelRes.data = remoteModelRes.data.filter(
+      (m) => !m.id.startsWith("gpt-4"),
+    );
+  }
+
+  return remoteModelRes;
+}
+
 async function handle(
   req: NextRequest,
   { params }: { params: { path: string[] } },
@@ -39,7 +53,18 @@ async function handle(
   }
 
   try {
-    return await requestOpenai(req);
+    const response = await requestOpenai(req);
+
+    // list models
+    if (subpath === OpenaiPath.ListModelPath && response.status === 200) {
+      const resJson = (await response.json()) as OpenAIListModelResponse;
+      const availableModels = getModels(resJson);
+      return NextResponse.json(availableModels, {
+        status: response.status,
+      });
+    }
+
+    return response;
   } catch (e) {
     console.error("[OpenAI] ", e);
     return NextResponse.json(prettyObject(e));