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Adds support for other hashing algorithms #23

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Adds support for other hashing algorithms #23

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24 changes: 21 additions & 3 deletions utils/hashCheck.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -2,15 +2,33 @@
function checkImageHash() {

local imageFilePath="$1"
local imageHashCompare="$2"
local imageHashFile="$2"

local algorithm="sha1sum"
local algorithmName="SHA1"
local imageHashCompare=$imageHashFile

if [[ "$imageHashFile" =~ sha256:(.*)\n? ]]; then
algorithmName="SHA256"
algorithm="sha256sum"
imageHashCompare=`echo ${BASH_REMATCH[1]}`
elif [[ "$imageHashFile" =~ sha1:(.*)\n? ]]; then
algorithmName="SHA1"
algorithm="sha1sum"
imageHashCompare=`echo ${BASH_REMATCH[1]}`
elif [[ "$imageHashFile" =~ md5:(.*)\n? ]]; then
algorithmName="MD5"
algorithm="md5sum"
imageHashCompare=`echo ${BASH_REMATCH[1]}`
fi

# Hash the downloaded image
local IMAGE_HASH_ACTUAL=$(pv -paeWcN "Checking Hash (SHA1)" "$imageFilePath" | sha1sum | grep -Eo "^([^ ]+)")
local IMAGE_HASH_ACTUAL=$(pv -paeWcN "Checking Hash ($algorithmName)" "$imageFilePath" | $algorithm | grep -Eo "^([^ ]+)")

# Check the hashes match
if [ "$imageHashCompare" != "$IMAGE_HASH_ACTUAL" ]; then
return 1
else
return 0
fi
}
}