fix: improved error handling for spider tool (#6835)

api/core/tools/provider/builtin/spider/spider.py

@@ -8,7 +8,13 @@ from core.tools.provider.builtin_tool_provider import BuiltinToolProviderControl
 class SpiderProvider(BuiltinToolProviderController):
     def _validate_credentials(self, credentials: dict[str, Any]) -> None:
         try:
-            app = Spider(api_key=credentials["spider_api_key"])
-            app.scrape_url(url="https://spider.cloud")
+            app = Spider(api_key=credentials['spider_api_key'])
+            app.scrape_url(url='https://spider.cloud')
+        except AttributeError as e:
+            # Handle cases where NoneType is not iterable, which might indicate API issues
+            if 'NoneType' in str(e) and 'not iterable' in str(e):
+                raise ToolProviderCredentialValidationError('API is currently down, try again in 15 minutes', str(e))
+            else:
+                raise ToolProviderCredentialValidationError('An unexpected error occurred.', str(e))
         except Exception as e:
-            raise ToolProviderCredentialValidationError(str(e))
+            raise ToolProviderCredentialValidationError('An unexpected error occurred.', str(e))