From 53ff9bd3071e798d130113551b4b290053d21a01 Mon Sep 17 00:00:00 2001
From: Silence_Lurker <slvccans@gmail.com>
Date: Tue, 20 Jan 2026 10:36:44 +0800
Subject: [PATCH] fix

---
 SL/bus/api/ModelCaller.js | 33 +++++++++++++++++++++------------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/SL/bus/api/ModelCaller.js b/SL/bus/api/ModelCaller.js
index 4b024fb..cb1761c 100644
--- a/SL/bus/api/ModelCaller.js
+++ b/SL/bus/api/ModelCaller.js
@@ -268,30 +268,39 @@ export default class ModelCaller {
      * 用于在手动构造请求时模拟 ST 后端行为
      */
     _buildProfilePayload(targetProfile) {
-        // 1. 全量继承 Profile 属性，防止遗漏自定义字段 (如 custom_url, user_name 等)
+        // 1. 全量继承 Profile 属性
         const payload = { ...targetProfile };
 
         // 2. 规范化关键字段
-        // ST 的 Profile 里模型名可能叫 openai_model, claude_model 等，统一映射为 model
+        // ST 的 Profile 里模型名可能叫 openai_model
         if (!payload.model) {
             payload.model = payload.openai_model || payload.claude_model || payload.mistral_model || payload.text_generation_webui_model || '';
         }
 
-        // 3. 确保 chat_completion_source 存在
-        if (!payload.chat_completion_source) {
-            payload.chat_completion_source = 'openai';
+        // 3. 强制修正 URL 映射 (解决 400 错误的核心)
+        // Profile 原始数据里可能是 api-url (中划线), api_url, custom_url 等
+        const rawUrl = payload['api-url'] || payload['api_url'] || payload.custom_url || payload.url;
+        
+        if (rawUrl) {
+            // OpenAI 模式认 reverse_proxy
+            payload.reverse_proxy = rawUrl;
+            // Custom 模式认 custom_url (双保险)
+            payload.custom_url = rawUrl;
+            // 某些后端可能需要这个
+            payload.openai_reverse_proxy = rawUrl;
         }
 
-        // 4. 处理 URL 映射 (OpenAI 兼容接口通常需要 reverse_proxy)
-        // 如果 Profile 里只有 custom_url 或 api_url，尝试映射给 reverse_proxy
-        if (!payload.reverse_proxy && (payload.custom_url || payload.api_url)) {
-            payload.reverse_proxy = payload.custom_url || payload.api_url;
-        }
+        // 4. 强制指定 Source 为 OpenAI
+        // 我们的 ModelCaller._fetchFakeStream 是按 OpenAI SSE 格式解析的
+        // 只要 reverse_proxy 设置正确，后端就会按 OpenAI 协议转发
+        payload.chat_completion_source = 'openai';
 
-        // 5. 补充默认采样参数 (如果 Profile 里完全缺失)
+        // 5. 补充默认采样参数 (防止 undefined)
         if (payload.temperature === undefined) payload.temperature = 1;
         if (payload.max_tokens === undefined) payload.max_tokens = 2000;
-        // 注意：top_p 等如果为 undefined，通常后端会用默认值，这里暂不强行赋值，以免覆盖后端逻辑
+        if (payload.top_p === undefined) payload.top_p = 1;
+        if (payload.frequency_penalty === undefined) payload.frequency_penalty = 0;
+        if (payload.presence_penalty === undefined) payload.presence_penalty = 0;
 
         return payload;
     }