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security: pin vendored library hashes in check-cdn-versions.sh #21

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Merged
NX1X merged 1 commit into from
Sep 7, 2026
Merged

security: pin vendored library hashes in check-cdn-versions.sh #21

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21 changes: 20 additions & 1 deletion scripts/check-cdn-versions.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -12,13 +12,32 @@ cd "$(dirname "$0")/.."

fail=0

# Pin the exact bytes we vendored, not just their presence. Bump these
# together with the file, deliberately, when updating a library version.
declare -A EXPECTED_SHA256=(
["public/vendor/pdf.min.js"]="5b5799e6f8c680663207ac5b42ee14eed2a406fa7af48f50c154f0c0b1566946"
["public/vendor/pdf.worker.min.js"]="feabdf309770ed24bba31a5467836cdc8cf639c705af27d52b585b041bb8527b"
["public/vendor/xlsx.full.min.js"]="c9506197caf809a075b6dee1da0d36fb19da7158ffe8a88e7b0c96c5d8623c99"
)

check_vendored_file() {
local path="$1"
if [ ! -f "$path" ]; then
echo "MISSING: ${path} does not exist"
fail=1
return
fi
local expected="${EXPECTED_SHA256[$path]:-}"
local actual
actual="$(sha256sum "$path" | cut -d' ' -f1)"
if [ -z "$expected" ]; then
echo "OK: ${path} present (no pinned hash on record - add one)"
fail=1
elif [ "$actual" != "$expected" ]; then
echo "TAMPERED OR STALE: ${path} sha256=${actual}, expected ${expected}"
fail=1
else
echo "OK: ${path} present"
echo "OK: ${path} present, sha256 matches"
fi
}

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