修复因新建分支导致上下文中的current img混乱,采用tool直接返回图片公开url地址(原因 1.保证图片时效性,2.保证图片能够进入上下文-deep agents的main-agent与sub-agent有上下文隔离机制,且task消息类型只支持str)

src/server/utils/new_oss_client.py

@@ -113,6 +113,74 @@ def load_minio_file_to_state(oss_client, bucket: str, object_name: str, display_
         raise ValueError(f"MinIO 下載失敗: {err}")
 
 
+from urllib.parse import urlparse
+
+
+def check_and_extract_minio_image(url: str) -> dict[str, str]:
+    """
+    校验URL + 提取MinIO图片路径（支持预签名地址）
+    返回格式: {"state": bool, "message": str, "data": str}
+    """
+    # 1. 空值判断
+    if not url or not isinstance(url, str):
+        return {
+            "state": False,
+            "message": "URL cannot be empty or invalid format",
+            "data": ""
+        }
+
+    # 2. 解析URL
+    try:
+        parsed = urlparse(url)
+        if not (parsed.scheme and parsed.netloc):
+            return {
+                "state": False,
+                "message": "Invalid URL format",
+                "data": ""
+            }
+    except Exception:
+        return {
+            "state": False,
+            "message": "Failed to parse URL",
+            "data": ""
+        }
+
+    # 3. 域名判断
+    allowed_domains = {"www.minio-api.aida.com.hk", "minio-api.aida.com.hk"}
+    if parsed.netloc not in allowed_domains:
+        return {
+            "state": False,
+            "message": f"Invalid domain: {parsed.netloc}",
+            "data": ""
+        }
+
+    # 4. Get file path (ignore query parameters for presigned URL)
+    file_path = parsed.path.strip()
+    if not file_path:
+        return {
+            "state": False,
+            "message": "No file path found in URL",
+            "data": ""
+        }
+
+    # 5. Check if it's an image
+    image_exts = (".png", ".jpg", ".jpeg", ".gif", ".bmp", ".webp", ".tiff")
+    if not file_path.lower().endswith(image_exts):
+        return {
+            "state": False,
+            "message": "Not a valid image file",
+            "data": ""
+        }
+
+    # 6. Extract final path
+    result_path = file_path.lstrip("/")
+    return {
+        "state": True,
+        "message": "Success, path extracted",
+        "data": result_path
+    }
+
+
 if __name__ == '__main__':
     url = 'fida-test/furniture/sketches/1b82b2db-8019-4796-b2cc-11fb24c7799d.png'
     read_type = "2"