aliyun-oss.sh

#!/bin/bash

set -o errexit
set -o pipefail
set -o nounset

_date() {
    LANG=us_EN.UTF-8 TZ=GMT date '+%a, %d %b %Y %H:%M:%S %Z'
}

gen_signature() {
    method=$1
    content_type=$2
    bucket=$3
    file=$4
    access_key_secret=$5

    content="$method\n\n$content_type\n$(_date)\n/$bucket/${file}"
    echo -en $content | openssl dgst -sha1 -hmac $access_key_secret -binary | base64
}

download_file() {
    access_key_id=$1
    access_key_secret=$2
    endpoint=$3
    bucket=$4
    bucket_endpoint=https://$bucket.$endpoint
    file=$5
    output=$6

    signature=$(gen_signature "GET" "" "$bucket" "$file" "$access_key_secret")
    curl -fsSLo $output \
        -H "Date: $(_date)" \
        -H "Authorization: OSS ${access_key_id}:${signature}" \
        $bucket_endpoint/$file
}

upload_file() {
    access_key_id=$1
    access_key_secret=$2
    endpoint=$3
    bucket=$4
    bucket_endpoint=https://$bucket.$endpoint
    file=$5
    content_type=$6
    target_name=$7

    signature=$(gen_signature "PUT" "$content_type" "$bucket" "$target_name" "$access_key_secret")
    curl -fsSXPUT -T "$file" \
        -H "Date: $(_date)" \
        -H "Content-type: $content_type" \
        -H "Authorization: OSS ${access_key_id}:${signature}" \
        $bucket_endpoint/$target_name
}