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update 2026-07-16 14:12:35
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@@ -1673,18 +1673,29 @@ function cleanEmptyTables(t)
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return next(t) and t or nil
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end
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function fetch_cert_sha256(host, port, sni, timeout)
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function fetch_cert_sha256(host, port, sni, timeout, http3)
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if not host then return "" end
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port = tonumber(port) or 443
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sni = sni or host
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timeout = tonumber(timeout) or 5
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local cmd = string.format(
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"timeout %d openssl s_client -connect %s:%d -servername %s -showcerts </dev/null 2>/dev/null " ..
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"| awk 'BEGIN{c=0}/BEGIN CERT/{c++} c==1{print} /END CERT/{if(c==1)exit}' " ..
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"| openssl x509 -outform der 2>/dev/null " ..
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"| sha256sum 2>/dev/null",
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timeout, host, port, sni
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)
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local cmd
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if http3 then
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cmd = string.format(
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"timeout %d curl --http3 -k -w '%%{certs}' -o /dev/null https://%s:%d 2>/dev/null " ..
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"| awk 'BEGIN{c=0}/BEGIN CERT/{c++} c==1{print} /END CERT/{if(c==1)exit}' " ..
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"| openssl x509 -outform der 2>/dev/null " ..
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"| sha256sum 2>/dev/null",
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timeout, host, port
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)
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else
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cmd = string.format(
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"timeout %d openssl s_client -connect %s:%d -servername %s -showcerts </dev/null 2>/dev/null " ..
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"| awk 'BEGIN{c=0}/BEGIN CERT/{c++} c==1{print} /END CERT/{if(c==1)exit}' " ..
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"| openssl x509 -outform der 2>/dev/null " ..
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"| sha256sum 2>/dev/null",
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timeout, host, port, sni
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)
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end
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local out = trim(sys.exec(cmd))
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local fp = out:match("^([0-9a-fA-F]+)")
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if not fp or fp:lower():match("^e3b0c44298fc1c149afbf4c8996fb924") then
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