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fix: add null checks for runtime.context in middlewares and tools (#1269)

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Add defensive null checks before accessing runtime.context.get() to
prevent AttributeError when runtime.context is None. This affects:
- UploadsMiddleware
- MemoryMiddleware
- LoopDetectionMiddleware
- SandboxMiddleware
- sandbox tools
- setup_agent_tool
- present_file_tool
- task_tool

Also adds .env loading in serve.sh for environment variable support.

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
This commit is contained in:
Matthew
2026-03-25 08:46:42 +08:00
committed by GitHub
parent f499f37e94
commit 2eca58bd86
9 changed files with 15 additions and 8 deletions
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backend/packages/harness/deerflow/sandbox/middleware.py
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@@ -71,7 +71,7 @@ class SandboxMiddleware(AgentMiddleware[SandboxMiddlewareState]):
get_sandbox_provider().release(sandbox_id)
return None
if runtime.context.get("sandbox_id") is not None:
if runtime.context and runtime.context.get("sandbox_id") is not None:
sandbox_id = runtime.context.get("sandbox_id")
logger.info(f"Releasing sandbox {sandbox_id} from context")
get_sandbox_provider().release(sandbox_id)