feat: config ak/sk... support empty str

Author: YangSen-qn

src/mcp_server/config/config.py

@@ -29,13 +29,22 @@ class Config:
 
 def load_config() -> Config:
     config = Config(
-        access_key=os.getenv(_CONFIG_ENV_KEY_ACCESS_KEY, "QINIU_ACCESS_KEY"),
-        secret_key=os.getenv(_CONFIG_ENV_KEY_SECRET_KEY, "QINIU_SECRET_KEY"),
-        endpoint_url=os.getenv(_CONFIG_ENV_KEY_ENDPOINT_URL, "QINIU_ENDPOINT_URL"),
-        region_name=os.getenv(_CONFIG_ENV_KEY_REGION_NAME, "QINIU_REGION_NAME"),
+        access_key=os.getenv(_CONFIG_ENV_KEY_ACCESS_KEY),
+        secret_key=os.getenv(_CONFIG_ENV_KEY_SECRET_KEY),
+        endpoint_url=os.getenv(_CONFIG_ENV_KEY_ENDPOINT_URL),
+        region_name=os.getenv(_CONFIG_ENV_KEY_REGION_NAME),
         buckets=_get_configured_buckets_from_env(),
     )
 
+    if not config.access_key or len(config.access_key) == 0:
+        config.access_key = "YOUR_QINIU_ACCESS_KEY"
+    if not config.secret_key or len(config.access_key) == 0:
+        config.secret_key = "YOUR_QINIU_SECRET_KEY"
+    if not config.endpoint_url or len(config.access_key) == 0:
+        config.endpoint_url = "YOUR_QINIU_ENDPOINT_URL"
+    if not config.region_name or len(config.access_key) == 0:
+        config.region_name = "YOUR_QINIU_REGION_NAME"
+
     logger.info(f"Configured   access_key: {config.access_key}")
     logger.info(f"Configured endpoint_url: {config.endpoint_url}")
     logger.info(f"Configured  region_name: {config.region_name}")