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fix(quickget): support algorithm-prefixed hashes and b2sum #1814

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Merged
flexiondotorg merged 1 commit into from
Jan 24, 2026
Merged

fix(quickget): support algorithm-prefixed hashes and b2sum #1814

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39 changes: 29 additions & 10 deletions quickget
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Original file line number Diff line number Diff line change
Expand Up @@ -1356,15 +1356,33 @@ function check_hash() {
iso="${VM_PATH}/${1}"
fi
hash="${2}"
# Guess the hash algorithm by the hash length
case ${#hash} in
32) hash_algo=md5sum;;
40) hash_algo=sha1sum;;
64) hash_algo=sha256sum;;
128) hash_algo=sha512sum;;
*) echo "WARNING! Can't guess hash algorithm, not checking ${iso} hash."
return;;
esac

# Check for algorithm prefix (e.g., "sha256:abc123..." or "b2sum:abc123...")
if [[ "${hash}" == *":"* ]]; then
local hash_prefix="${hash%%:*}"
hash="${hash#*:}"
# Normalise algorithm prefix to lowercase
hash_prefix="$(echo "${hash_prefix}" | tr '[:upper:]' '[:lower:]')"
case "${hash_prefix}" in
md5) hash_algo=md5sum;;
sha1) hash_algo=sha1sum;;
sha256) hash_algo=sha256sum;;
sha512) hash_algo=sha512sum;;
b2sum|blake2|blake2b) hash_algo=b2sum;;
*) echo "WARNING! Unknown hash algorithm '${hash_prefix}', not checking ${iso} hash."
return;;
esac
else
# Guess the hash algorithm by the hash length
case ${#hash} in
32) hash_algo=md5sum;;
40) hash_algo=sha1sum;;
64) hash_algo=sha256sum;;
128) hash_algo=sha512sum;;
*) echo "WARNING! Can't guess hash algorithm, not checking ${iso} hash."
return;;
esac
fi

# Use GNU coreutils on macOS/Darwin (prefixed with 'g')
if [ "${HOST_OS}" = "Darwin" ]; then
Expand All @@ -1373,11 +1391,12 @@ function check_hash() {
sha1sum) hash_algo=gsha1sum;;
sha256sum) hash_algo=gsha256sum;;
sha512sum) hash_algo=gsha512sum;;
b2sum) hash_algo=gb2sum;;
esac
fi

echo -n "Checking ${iso} with ${hash_algo}... "
if ! echo "${hash} ${iso}" | ${hash_algo} --check --status; then
if ! printf '%s %s\n' "${hash}" "${iso}" | ${hash_algo} --check --status; then
echo "ERROR!"
echo "${iso} doesn't match ${hash}. Try running 'quickget' again."
exit 1
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