82 lines
2.3 KiB
Bash
Executable File
82 lines
2.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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############################################################################
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# apps/tools/check-hash.sh
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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usage="Usage: $0 <hash-algo> <expected-hash> <file-to-check>"
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if [ ${#} -ne 3 ]
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then
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echo "ERROR: invalid number of arguments passed"
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echo ""
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echo ${usage}
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exit 1
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fi
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hash_algo=${1}
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exp_hash=${2}
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file_to_check=${3}
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if [ ! -f "${file_to_check}" ]; then
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echo "ERROR: file '${file_to_check}' does not exist"
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echo ""
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echo ${usage}
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exit 1
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fi
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case "${hash_algo}" in
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sha1|sha224|sha256|sha384|sha512)
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# valid hash passed, continue
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;;
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*)
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echo "ERROR: invalid hash '${hash_algo}' for file '${file_to_check}'"
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echo "supported hashes are:"
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echo " sha1, sha224, sha256, sha384, sha512"
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echo ""
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echo ${usage}
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exit 1
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esac
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# Calculate hash value of passed file
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if [ `which ${hash_algo}sum 2> /dev/null` ]; then
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hash_algo_cmd="${hash_algo}sum"
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elif [ `which shasum 2> /dev/null` ]; then
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hash_algo_len=$(echo ${hash_algo} | cut -c 4-)
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hash_algo_cmd="shasum -a ${hash_algo_len}"
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fi
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calc_hash=$(${hash_algo_cmd} "${file_to_check}" | cut -d' ' -f1)
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# Does it match expected hash?
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if [ "${exp_hash}" == "${calc_hash}" ]; then
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# yes, they match, we're good
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exit 0
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fi
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# No, hashes don't match, print error message and remove corrupted file
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echo "ERROR: file ${file_to_check} has invalid hash"
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echo "got: ${calc_hash}"
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echo "expected: ${exp_hash}"
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rm "${file_to_check}"
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exit 1
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