fix(P0): DoubaoClient vision_completion使用self.model + 构造函数按provider区分fallback

Bug 1（致命）：vision_completion payload使用self.vision_model（settings硬编码豆包视觉模型名），而非构造函数传入的self.model。dashscope provider下发送豆包模型名到dashscope端点导致404/401。 Bug 2（重要）：构造函数api_key/model/base_url为空时一律fallback到doubao （火山引擎）配置。provider=dashscope时应fallback到dashscope配置，否则 dashscope key请求火山方舟地址返回401。 TTSClient/ImageGenClient/VideoGenClient为纯数据持有者，无fallback逻辑，无需修改。
2026-10-06 19:30:37 +08:00
parent d1c137af8a
commit 54842c1387
1 changed files with 10 additions and 5 deletions
@@ -183,15 +183,20 @@ class DoubaoClient:
        provider: str = "volcengine",
    ) -> None:
        settings = get_shared_settings()
-        self.api_key: str = api_key or settings.doubao_api_key
-        self.model: str = model or settings.doubao_model
-        self.base_url: str = (base_url or settings.doubao_base_url).rstrip("/")
+        self.provider: str = provider
+        if provider == "dashscope":
+            self.api_key: str = api_key or getattr(settings, "dashscope_api_key", "")
+            self.model: str = model or getattr(settings, "dashscope_model", "")
+            self.base_url: str = (base_url or getattr(settings, "dashscope_base_url", "")).rstrip("/")
+        else:  # volcengine (default)
+            self.api_key = api_key or settings.doubao_api_key
+            self.model = model or settings.doubao_model
+            self.base_url = (base_url or settings.doubao_base_url).rstrip("/")
        self.timeout: int = timeout or settings.doubao_timeout
        self.max_retries: int = max_retries or settings.doubao_max_retries
        self.max_tokens: int | None = max_tokens
        self.temperature: float | None = temperature
        self.extra_params: dict = extra_params or {}
-        self.provider: str = provider
        self.vision_model: str = settings.doubao_vision_model
        self.vision_lite_model: str = settings.doubao_vision_lite_model
        self.fast_model: str = settings.doubao_fast_model
@@ -391,7 +396,7 @@ class DoubaoClient:
            "Content-Type": "application/json",
        }
        payload: dict[str, Any] = {
-            "model": model or self.vision_model,
+            "model": model or self.model,
            "messages": vision_messages,
            "temperature": temperature,
            "max_tokens": max_tokens,