Added arch_download_aws4.sh & arch_getacl_aws4.sh
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arch_download_aws4.sh
Executable file
71
arch_download_aws4.sh
Executable file
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#!/bin/sh
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# Copyleft https://git.k8s.astropenguin.net/penguin/s3-arch-utils
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# ##
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# Reference
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# https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html
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#
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# Usage
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# arch_download_aws4.sh path/in/bucket/key.ext
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#
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# Description
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# Prints the contents of an object from s3 into stdout
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#
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# Env vars
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# ARCH_S3_BUCKET_URL The bucket url, e.g. my-bucket.s3.us-west-004.backblazeb2.com
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# ARCH_S3_AUTH In the format of ACCESS_KEY:SECRET_KEY
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# #
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_PATH="$1"
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if [ -z "$_PATH" ]; then
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echo "Object key is required"
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exit 1
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fi
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if [ -z "$ARCH_S3_BUCKET_URL" ]; then
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echo "Env ARCH_S3_BUCKET_URL is required"
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exit 1
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fi
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BUCKET_NAME=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
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SERVICE=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
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REGION=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
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ACCESS_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f1 )
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SECRET_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f2 )
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BUCKET_URL=$ARCH_S3_BUCKET_URL
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_DATE=$( date -u +"%Y%m%d" )
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_DTIME=$( date -u +"%Y%m%dT%H%M%SZ" )
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_HEADERS="host;x-amz-date"
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_SHA=$( echo -n "" | sha256sum | cut -d' ' -f1 )
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# Canon Request
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_C="GET"
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_C="$_C\n/$_PATH"
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_C="$_C\n" # no query strings here
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_C="$_C\nhost:$BUCKET_URL"
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_C="$_C\nx-amz-date:$_DTIME"
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_C="$_C\n"
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_C="$_C\n$_HEADERS"
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_C="$_C\n$_SHA"
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# String to Sign
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_S="AWS4-HMAC-SHA256"
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_S="$_S\n$_DTIME"
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_S="$_S\n$_DATE/$REGION/$SERVICE/aws4_request"
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_S="$_S\n$( echo -ne "$_C" | sha256sum | cut -d' ' -f1 )"
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function _HMAC { echo -ne "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
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SIG=$( _HMAC "key:AWS4$SECRET_KEY" "$_DATE" )
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SIG=$( _HMAC "hexkey:$SIG" "$REGION" )
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SIG=$( _HMAC "hexkey:$SIG" "$SERVICE" )
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SIG=$( _HMAC "hexkey:$SIG" "aws4_request" )
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SIG=$( _HMAC "hexkey:$SIG" "$_S" )
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curl -XGET \
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-H "X-Amz-Date: $_DTIME" \
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-H "X-Amz-Content-SHA256: $_SHA" \
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-H "Authorization: AWS4-HMAC-SHA256 Credential=$ACCESS_KEY/$_DATE/$REGION/$SERVICE/aws4_request, SignedHeaders=$_HEADERS, Signature=$SIG" \
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"https://$BUCKET_URL/$_PATH"
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94
arch_getacl_aws4.sh
Executable file
94
arch_getacl_aws4.sh
Executable file
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#!/bin/sh
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# Copyleft https://git.k8s.astropenguin.net/penguin/s3-arch-utils
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# ##
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# Reference
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# https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectAcl.html
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#
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# Usage
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# arch_getactl_aws4.sh path/in/bucket/key.ext
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#
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# Description
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# Prints the contents of an object from s3 into stdout
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#
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# Env vars
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# ARCH_S3_BUCKET_URL The bucket url, e.g. my-bucket.s3.us-west-004.backblazeb2.com
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# ARCH_S3_AUTH In the format of ACCESS_KEY:SECRET_KEY
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# #
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_PATH="$1"
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if [ -z "$_PATH" ]; then
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echo "Object key is required"
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exit 1
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fi
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if [ -z "$ARCH_S3_BUCKET_URL" ]; then
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echo "Env ARCH_S3_BUCKET_URL is required"
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exit 1
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fi
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BUCKET_NAME=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f1 )
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SERVICE=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f2 )
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REGION=$( echo -n $ARCH_S3_BUCKET_URL | cut -d'.' -f3 )
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ACCESS_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f1 )
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SECRET_KEY=$( echo -n $ARCH_S3_AUTH | cut -d':' -f2 )
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BUCKET_URL=$ARCH_S3_BUCKET_URL
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_DATE=$( date -u +"%Y%m%d" )
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_DTIME=$( date -u +"%Y%m%dT%H%M%SZ" )
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_HEADERS="host;x-amz-date"
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_SHA=$( echo -n "" | sha256sum | cut -d' ' -f1 )
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# Keys should be sorted
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QPARAMS=(
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"versionId" ""
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)
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function _urlencode {
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echo -n $1 | sed "s/\//%2F/g"
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}
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_L=${#QPARAMS[@]}
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QSTR="acl="
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for (( i=0; i<$_L; i+=2 )); do
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_K=${QPARAMS[$i]}
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_V=${QPARAMS[(($i+1))]}
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if [ -z "$_V" ]; then
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continue
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fi
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_S="$_K=$( _urlencode $_V )"
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QSTR="$QSTR&$_S"
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done
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# Canon Request
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_C="GET"
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_C="$_C\n/$_PATH"
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_C="$_C\n$QSTR"
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_C="$_C\nhost:$BUCKET_URL"
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_C="$_C\nx-amz-date:$_DTIME"
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_C="$_C\n"
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_C="$_C\n$_HEADERS"
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_C="$_C\n$_SHA"
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# String to Sign
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_S="AWS4-HMAC-SHA256"
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_S="$_S\n$_DTIME"
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_S="$_S\n$_DATE/$REGION/$SERVICE/aws4_request"
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_S="$_S\n$( echo -ne "$_C" | sha256sum | cut -d' ' -f1 )"
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function _HMAC { echo -ne "$2" | openssl dgst -sha256 -hex -mac HMAC -macopt "$1" | cut -d' ' -f2; }
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SIG=$( _HMAC "key:AWS4$SECRET_KEY" "$_DATE" )
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SIG=$( _HMAC "hexkey:$SIG" "$REGION" )
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SIG=$( _HMAC "hexkey:$SIG" "$SERVICE" )
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SIG=$( _HMAC "hexkey:$SIG" "aws4_request" )
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SIG=$( _HMAC "hexkey:$SIG" "$_S" )
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curl -s -XGET \
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-H "X-Amz-Date: $_DTIME" \
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-H "X-Amz-Content-SHA256: $_SHA" \
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-H "Authorization: AWS4-HMAC-SHA256 Credential=$ACCESS_KEY/$_DATE/$REGION/$SERVICE/aws4_request, SignedHeaders=$_HEADERS, Signature=$SIG" \
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"https://$BUCKET_URL/$_PATH?$QSTR"
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