Merge pull request #216 from cita-777/codex/fix-responses-endpoint-memory

[codex] fix cross-protocol conversation file compatibility

src/server/proxy-core/capabilities/conversationFileCapabilities.test.ts

@@ -40,15 +40,15 @@ describe('conversationFileCapabilities', () => {
     });
   });
 
-  it('describes inline-only document support for claude messages and gemini chat paths', () => {
+  it('describes native remote-document support for claude messages and inline-only support for gemini chat paths', () => {
     expect(resolveConversationFileEndpointCapability({
       sitePlatform: 'claude',
       endpoint: 'messages',
     })).toMatchObject({
       image: 'native',
       audio: 'unsupported',
-      document: 'inline_only',
-      preservesRemoteDocumentUrl: false,
+      document: 'native',
+      preservesRemoteDocumentUrl: true,
     });
 
     expect(resolveConversationFileEndpointCapability({

src/server/proxy-core/capabilities/conversationFileCapabilities.ts

@@ -151,8 +151,8 @@ export function resolveConversationFileEndpointCapability(input: {
       return {
         image: 'native',
         audio: 'unsupported',
-        document: 'inline_only',
-        preservesRemoteDocumentUrl: false,
+        document: 'native',
+        preservesRemoteDocumentUrl: true,
       };
     }
     return {

src/server/proxy-core/surfaces/chatSurface.ts

@@ -165,6 +165,7 @@ export async function handleChatSurfaceRequest(
       requestedModelHint: requestedModel,
       requestCapabilities: {
         hasNonImageFileInput,
+        conversationFileSummary,
       },
     };
     const buildProviderHeaders = () => (

src/server/proxy-core/surfaces/geminiSurface.ts

@@ -33,6 +33,7 @@ import {
 import { dispatchRuntimeRequest } from '../../routes/proxy/runtimeExecutor.js';
 import { detectDownstreamClientContext, type DownstreamClientContext } from '../../routes/proxy/downstreamClientContext.js';
 import { insertProxyLog } from '../../services/proxyLogStore.js';
+import { summarizeConversationFileInputsInOpenAiBody } from '../capabilities/conversationFileCapabilities.js';
 
 const MAX_RETRIES = 2;
 const GEMINI_MODEL_PROBES = [
@@ -685,6 +686,8 @@ export async function geminiProxyRoute(app: FastifyInstance) {
           modelName: actualModel,
           stream: isStreamAction,
         });
+        const conversationFileSummary = summarizeConversationFileInputsInOpenAiBody(openAiBody);
+        const hasNonImageFileInput = conversationFileSummary.hasDocument;
         const endpointCandidates = await resolveUpstreamEndpointCandidates(
           {
             site: selected.site,
@@ -693,12 +696,20 @@ export async function geminiProxyRoute(app: FastifyInstance) {
           actualModel,
           'openai',
           requestedModel,
+          {
+            hasNonImageFileInput,
+            conversationFileSummary,
+          },
         );
         const endpointRuntimeContext = {
           siteId: selected.site.id,
           modelName: actualModel,
           downstreamFormat: 'openai' as const,
           requestedModelHint: requestedModel,
+          requestCapabilities: {
+            hasNonImageFileInput,
+            conversationFileSummary,
+          },
         };
         const buildEndpointRequest = (
           endpoint: 'chat' | 'messages' | 'responses',

src/server/proxy-core/surfaces/openAiResponsesSurface.ts

@@ -238,14 +238,6 @@ export async function handleOpenAiResponsesSurfaceRequest(
       const responsesConversationFileSummary = summarizeConversationFileInputsInResponsesBody(normalizedResponsesBody);
       const requiresNativeResponsesFileUrl = responsesConversationFileSummary.hasRemoteDocumentUrl
         || carriesResponsesFileUrlInput(normalizedResponsesBody.input);
-      if (requiresNativeResponsesFileUrl && String(selected.site.platform || '').trim().toLowerCase() === 'claude') {
-        return reply.code(400).send({
-          error: {
-            message: 'Responses input_file.file_url requires an upstream /v1/responses endpoint; current site only supports /v1/messages.',
-            type: 'invalid_request_error',
-          },
-        });
-      }
       const endpointCandidates = await resolveUpstreamEndpointCandidates(
         {
           site: selected.site,
@@ -260,9 +252,6 @@ export async function handleOpenAiResponsesSurfaceRequest(
           wantsNativeResponsesReasoning: prefersNativeResponsesReasoning,
         },
       );
-      if (requiresNativeResponsesFileUrl) {
-        endpointCandidates.splice(0, endpointCandidates.length, 'responses');
-      }
       if (endpointCandidates.length === 0) {
         endpointCandidates.push('responses', 'chat', 'messages');
       }
@@ -273,6 +262,7 @@ export async function handleOpenAiResponsesSurfaceRequest(
         requestedModelHint: requestedModel,
         requestCapabilities: {
           hasNonImageFileInput,
+          conversationFileSummary,
           wantsNativeResponsesReasoning: prefersNativeResponsesReasoning,
         },
       };