feat(workflow): add configurable workflow feature options

api/app/services/workflow_service.py

@@ -570,6 +570,9 @@ class WorkflowService:
                 message=f"工作流配置不存在: app_id={app_id}"
             )
 
+        feature_configs = config.features or {}
+        self._validate_file_upload(feature_configs, payload.files)
+
         input_data = {
             "message": payload.message, "variables": payload.variables,
             "conversation_id": payload.conversation_id,
@@ -737,6 +740,8 @@ class WorkflowService:
                 code=BizCode.CONFIG_MISSING,
                 message=f"工作流配置不存在: app_id={app_id}"
             )
+        feature_configs = config.features or {}
+        self._validate_file_upload(feature_configs, payload.files)
 
         input_data = {
             "message": payload.message, "variables": payload.variables,
@@ -845,7 +850,10 @@ class WorkflowService:
                     yield event
 
         except Exception as e:
-            logger.error(f"工作流流式执行失败: execution_id={execution.execution_id}, error={e}", exc_info=True)
+            logger.error(
+                f"Workflow streaming execution failed: execution_id={execution.execution_id}, error={e}",
+                exc_info=True
+            )
             self.update_execution_status(
                 execution.execution_id,
                 "failed",
@@ -876,6 +884,72 @@ class WorkflowService:
                 return True
         return False
 
+    @staticmethod
+    def _validate_file_upload(
+            features_config: dict[str, Any],
+            files: Optional[list[FileInput]]
+    ) -> None:
+        """校验上传文件是否符合 file_upload 配置"""
+        if not files:
+            return
+        fu = features_config.get("file_upload")
+        if fu is None:
+            return
+        if not (isinstance(fu, dict) and fu.get("enabled")):
+            raise BusinessException(
+                "The application does not have file upload functionality enabled",
+                BizCode.BAD_REQUEST
+            )
+        max_count = fu.get("max_file_count", 5)
+        if len(files) > max_count:
+            raise BusinessException(
+                f"File count exceeds limit (maximum {max_count} files)",
+                BizCode.BAD_REQUEST
+            )
+
+        # 校验传输方式
+        allowed_methods = fu.get("allowed_transfer_methods", ["local_file", "remote_url"])
+        for f in files:
+            if f.transfer_method.value not in allowed_methods:
+                raise BusinessException(
+                    f"Unsupport file transfer method：{f.transfer_method.value},"
+                    f"allowed method:{', '.join(allowed_methods)}",
+                    BizCode.BAD_REQUEST
+                )
+
+        # 各类型对应的开关和大小限制配置键
+        type_cfg = {
+            "image": ("image_enabled", "image_max_size_mb", 20, "image"),
+            "audio": ("audio_enabled", "audio_max_size_mb", 50, "audio"),
+            "document": ("document_enabled", "document_max_size_mb", 100, "document"),
+            "video": ("video_enabled", "video_max_size_mb", 500, "video"),
+        }
+
+        for f in files:
+            ftype = str(f.type)  # 如 "image", "audio", "document", "video"
+            cfg = type_cfg.get(ftype)
+            if cfg is None:
+                continue
+            enabled_key, size_key, default_max_mb, label = cfg
+
+            # 校验类型开关
+            if not fu.get(enabled_key):
+                raise BusinessException(
+                    f"The application has not enabled {label} file upload",
+                    BizCode.BAD_REQUEST
+                )
+
+            # 校验文件大小（仅当内容已加载时）
+            content = f.get_content()
+            if content is not None:
+                max_mb = fu.get(size_key, default_max_mb)
+                size_mb = len(content) / (1024 * 1024)
+                if size_mb > max_mb:
+                    raise BusinessException(
+                        f"{label} File size exceeds the limit (maximum {max_mb} MB, current {size_mb:.1f} MB)",
+                        BizCode.BAD_REQUEST
+                    )
+
 
 # ==================== 依赖注入函数 ====================