extract untrusted github.head_ref and github.ref_name inputs to environment variables #5479
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…onment variables Signed-off-by: fixedpoint <961750412@qq.com>
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Hi! GitHub treated
github.head_refandGitHub.ref_nameas the untrusted inputs. Extracting them to env var will prevent some potential script injection even ifsubprocess.check_callseems could prevent command injection. But don't know whether there exists any unknown injections for it. So I think that extracting will be safer.