124 lines
3.8 KiB
Bash
Executable File
124 lines
3.8 KiB
Bash
Executable File
#!/bin/bash
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for _aliapi_command in openssl curl; do
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if ! command -v $_aliapi_command &> /dev/null; then
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echo "Aliyun OpenAPI SDK: $_aliapi_command command not found"
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exit 127
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fi
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done
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unset _aliapi_command
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# aliapi_rpc <http_method> <host> <api_version> <api_action> [<--key> <value>...]
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aliapi_rpc() {
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_aliapi_check_vars || return $?
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if [[ $# -lt 4 ]];then
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echo "aliapi_rpc: not enough parameters" >&2
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return 2
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fi
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local -r _AliAccessKeyId=$AliAccessKeyId _AliAccessKeySecret=$AliAccessKeySecret
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local -u _http_method=$1
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local _http_host=$2
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local _api_version=$3
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local _api_action=$4
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shift 4
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local -A _api_params
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_api_params=(
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["AccessKeyId"]=$_AliAccessKeyId
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["Action"]=$_api_action
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["Format"]="JSON"
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["SignatureMethod"]="HMAC-SHA1"
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["SignatureVersion"]="1.0"
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["SignatureNonce"]=$(_aliapi_signature_nonce)
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["Timestamp"]=$(_aliapi_timestamp_rpc)
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["Version"]=$_api_version
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)
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# 解析其余参数
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while [[ $# -ne 0 ]]
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do
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case $1 in
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--*)
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if [[ $# -le 1 ]]; then
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echo "aliapi_rpc: '$1' has no value" >&2
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return 2
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fi
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_api_params[${1:2}]="$2"
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shift 2
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;;
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*)
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echo "aliapi_rpc: '$1' is unknown parameter" >&2
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return 2
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;;
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esac
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done
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local _query_str=""
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local _key _value
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for _key in "${!_api_params[@]}"; do
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_value=${_api_params[$_key]}
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# 参数值如果是以 () 结束，代表需要执行函数获取值，如果函数不存在，使用原始值。
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[[ $_value =~ .+\(\)$ && $(type -t "${_value:0:-2}") == "function" ]] && _value=$(${_value:0:-2})
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_value=$(_aliapi_urlencode "$_value")
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_query_str+="$_key=$_value&"
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done
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local _signature
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_signature=$(_aliapi_signature_rpc "$_http_method" "$_query_str")
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_query_str+="Signature=$(_aliapi_urlencode "$_signature")"
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local _curl_out _http_code _http_url="https://$_http_host/?$_query_str"
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_curl_out=$(mktemp)
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_http_code=$(curl --location --silent --show-error --request "$_http_method" --output "$_curl_out" --write-out "%{http_code}" --connect-timeout 3 "$_http_url") && cat "$_curl_out" - <<< ""
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rm -f "$_curl_out"
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[[ $_http_code -eq 200 ]] && return 0 || return 1
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}
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_aliapi_check_vars() {
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if [[ ! -v AliAccessKeyId || ! -v AliAccessKeySecret ]]; then
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echo "Aliyun OpenAPI SDK: 'AliAccessKeyId' or 'AliAccessKeySecret' environment variable not found" >&2
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return 3
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fi
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}
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_aliapi_signature_rpc() {
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local -u _http_method=$1
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local _str _query_str _sign_str
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_str=$(LC_ALL=C echo -n "$2" | tr "&" "\n" | sort)
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_query_str=$(echo -n "$_str" | tr "\n" "&")
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_sign_str="$_http_method&$(_aliapi_urlencode "/")&$(_aliapi_urlencode "$_query_str")"
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echo -n "$_sign_str" | openssl sha1 -hmac "$_AliAccessKeySecret&" -binary | openssl base64 -e
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}
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_aliapi_timestamp_rpc() {
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# ISO8601 UTC
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date -u -Iseconds
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}
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_aliapi_signature_nonce() {
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local nonce=""
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if [[ -f /proc/sys/kernel/random/uuid ]]; then
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nonce=$(</proc/sys/kernel/random/uuid)
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else
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nonce=$(date "+%s%N")
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fi
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echo "$RANDOM${nonce//-/}$RANDOM"
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}
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_aliapi_urlencode() {
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local result
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result=$(curl --get --silent --output /dev/null --write-out "%{url_effective}" --data-urlencode "=$1" "")
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result="${result//+/%20}" # 替换 + 为 %20
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echo "${result#*\?}"
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}
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if [[ ${#BASH_SOURCE[@]} -eq 1 ]]; then
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set -euf -o pipefail
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if [[ $# -eq 0 ]]; then
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echo "$0 <http_method> <host> <api_version> <api_action> [<--key> <value>...]" >&2
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exit 2
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fi
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aliapi_rpc "$@"
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fi
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