DATA
6de0bf9f5b
Vendored deer-flow upstream (bytedance/deer-flow) plus prompt-injection hardening: - New deerflow.security package: content_delimiter, html_cleaner, sanitizer (8 layers — invisible chars, control chars, symbols, NFC, PUA, tag chars, horizontal whitespace collapse with newline/tab preservation, length cap) - New deerflow.community.searx package: web_search, web_fetch, image_search backed by a private SearX instance, every external string sanitized and wrapped in <<<EXTERNAL_UNTRUSTED_CONTENT>>> delimiters - All native community web providers (ddg_search, tavily, exa, firecrawl, jina_ai, infoquest, image_search) replaced with hard-fail stubs that raise NativeWebToolDisabledError at import time, so a misconfigured tool.use path fails loud rather than silently falling back to unsanitized output - Native client back-doors (jina_client.py, infoquest_client.py) stubbed too - Native-tool tests quarantined under tests/_disabled_native/ (collect_ignore_glob via local conftest.py) - Sanitizer Layer 7 fix: only collapse horizontal whitespace, preserve newlines and tabs so list/table structure survives - Hardened runtime config.yaml references only the searx-backed tools - Factory overlay (backend/) kept in sync with deer-flow tree as a reference / source See HARDENING.md for the full audit trail and verification steps.
46 lines
1.7 KiB
Python
46 lines
1.7 KiB
Python
"""Security helpers for sandbox capability gating."""
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from deerflow.config import get_app_config
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_LOCAL_SANDBOX_PROVIDER_MARKERS = (
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"deerflow.sandbox.local:LocalSandboxProvider",
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"deerflow.sandbox.local.local_sandbox_provider:LocalSandboxProvider",
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)
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LOCAL_HOST_BASH_DISABLED_MESSAGE = (
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"Host bash execution is disabled for LocalSandboxProvider because it is not a secure "
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"sandbox boundary. Switch to AioSandboxProvider for isolated bash access, or set "
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"sandbox.allow_host_bash: true only in a fully trusted local environment."
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)
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LOCAL_BASH_SUBAGENT_DISABLED_MESSAGE = (
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"Bash subagent is disabled for LocalSandboxProvider because host bash execution is not "
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"a secure sandbox boundary. Switch to AioSandboxProvider for isolated bash access, or "
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"set sandbox.allow_host_bash: true only in a fully trusted local environment."
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)
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def uses_local_sandbox_provider(config=None) -> bool:
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"""Return True when the active sandbox provider is the host-local provider."""
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if config is None:
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config = get_app_config()
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sandbox_cfg = getattr(config, "sandbox", None)
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sandbox_use = getattr(sandbox_cfg, "use", "")
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if sandbox_use in _LOCAL_SANDBOX_PROVIDER_MARKERS:
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return True
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return sandbox_use.endswith(":LocalSandboxProvider") and "deerflow.sandbox.local" in sandbox_use
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def is_host_bash_allowed(config=None) -> bool:
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"""Return whether host bash execution is explicitly allowed."""
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if config is None:
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config = get_app_config()
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sandbox_cfg = getattr(config, "sandbox", None)
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if sandbox_cfg is None:
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return False
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if not uses_local_sandbox_provider(config):
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return True
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return bool(getattr(sandbox_cfg, "allow_host_bash", False))
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